| Message ID | 1411728904-25182-1-git-send-email-mark.yao@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Mark, More review comments inline... (sorry for the delay) On Fri, Sep 26, 2014 at 6:55 PM, Mark Yao <mark.yao@rock-chips.com> wrote: > From: Mark yao <mark.yao@rock-chips.com> > > This patch adds the basic structure of a DRM Driver for Rockchip Socs. > > Signed-off-by: Mark Yao <mark.yao@rock-chips.com> > Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> > Acked-by: Daniel Vetter <daniel@ffwll.ch> > Reviewed-by: Rob Clark <robdclark@gmail.com> > --- > Changes in v2: > - use the component framework to defer main drm driver probe > until all VOP devices have been probed. > - use dma-mapping API with ARM_DMA_USE_IOMMU, create dma mapping by > master device and each vop device can shared the drm dma mapping. > - use drm_crtc_init_with_planes and drm_universal_plane_init. > - remove unnecessary middle layers. > - add cursor set, move funcs to rockchip drm crtc. > - use vop reset at first init > - reference framebuffer when used and unreference when swap out vop > > Changes in v3: > - change "crtc->fb" to "crtc->primary-fb" > Adviced by Daniel Vetter > - init cursor plane with universal api, remove unnecessary cursor set,move > > Changes in v4: > Adviced by David Herrmann > - remove drm_platform_*() usage, use register drm device directly. > Adviced by Rob Clark > - remove special mmap ioctl, do userspace mmap with normal mmap() or mmap offset > > Changes in v5: > Adviced by Arnd Bergmann > - doing DMA start with a 32-bit masks with dma_mask and dma_coherent_mark > - fix some incorrect dependencies. > Adviced by Boris BREZILLON > - fix some mistake and bugs. > Adviced by Daniel Vetter > - drop all special ioctl and use generic kms ioctl instead. > Adviced by Rob Clark > - use unlocked api for drm_fb_helper_restore_fbdev_mode. > - remove unused rockchip_gem_prime_import_sg_table. > > Changes in v6: > - set gem buffer pitch 64 bytes align, needed by mali gpu. > Adviced by Daniel Kurtz > - fix some mistake, bugs, remove unused define, more better code style etc. > - use clk_prepare()/unprepare() at probe()/remove() and clk_enable()/disable() > at runtime instead of clk_prepare_enable(). > - provide a help function from vop for encoder to do mode config, instead of > using drm_diaplay_mode private method. > - change vop mode_set timing to make it more safely. > > Changes in v7: > - fix memory leakage problem > > drivers/gpu/drm/Kconfig | 2 + > drivers/gpu/drm/Makefile | 1 + > drivers/gpu/drm/rockchip/Kconfig | 17 + > drivers/gpu/drm/rockchip/Makefile | 8 + > drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 516 +++++++++ > drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 61 ++ > drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 201 ++++ > drivers/gpu/drm/rockchip/rockchip_drm_fb.h | 28 + > drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 230 ++++ > drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h | 20 + > drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 345 ++++++ > drivers/gpu/drm/rockchip/rockchip_drm_gem.h | 55 + > drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1422 +++++++++++++++++++++++++ > drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 196 ++++ > 14 files changed, 3102 insertions(+) > create mode 100644 drivers/gpu/drm/rockchip/Kconfig > create mode 100644 drivers/gpu/drm/rockchip/Makefile > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_drv.c > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_drv.h > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fb.c > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fb.h > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_gem.c > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_gem.h > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_vop.c > create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_vop.h > > diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig > index b066bb3..7c4c3c6 100644 > --- a/drivers/gpu/drm/Kconfig > +++ b/drivers/gpu/drm/Kconfig > @@ -171,6 +171,8 @@ config DRM_SAVAGE > > source "drivers/gpu/drm/exynos/Kconfig" > > +source "drivers/gpu/drm/rockchip/Kconfig" > + > source "drivers/gpu/drm/vmwgfx/Kconfig" > > source "drivers/gpu/drm/gma500/Kconfig" > diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile > index 4a55d59..d03387a 100644 > --- a/drivers/gpu/drm/Makefile > +++ b/drivers/gpu/drm/Makefile > @@ -52,6 +52,7 @@ obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/ > obj-$(CONFIG_DRM_VIA) +=via/ > obj-$(CONFIG_DRM_NOUVEAU) +=nouveau/ > obj-$(CONFIG_DRM_EXYNOS) +=exynos/ > +obj-$(CONFIG_DRM_ROCKCHIP) +=rockchip/ > obj-$(CONFIG_DRM_GMA500) += gma500/ > obj-$(CONFIG_DRM_UDL) += udl/ > obj-$(CONFIG_DRM_AST) += ast/ > diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig > new file mode 100644 > index 0000000..87255f7 > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/Kconfig > @@ -0,0 +1,17 @@ > +config DRM_ROCKCHIP > + tristate "DRM Support for Rockchip" > + depends on DRM && ROCKCHIP_IOMMU && ARM_DMA_USE_IOMMU && IOMMU_API > + select DRM_KMS_HELPER > + select DRM_KMS_FB_HELPER > + select DRM_PANEL > + select FB_CFB_FILLRECT > + select FB_CFB_COPYAREA > + select FB_CFB_IMAGEBLIT > + select VT_HW_CONSOLE_BINDING if FRAMEBUFFER_CONSOLE > + select VIDEOMODE_HELPERS > + help > + Choose this option if you have a Rockchip soc chipset. > + This driver provides kernel mode setting and buffer > + management to userspace. This driver does not provides > + 2D or 3D acceleration; acceleration is performed by other > + IP found on the SoC. > diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile > new file mode 100644 > index 0000000..b3a5193 > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/Makefile > @@ -0,0 +1,8 @@ > +# > +# Makefile for the drm device driver. This driver provides support for the > +# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher. > + > +rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o rockchip_drm_fbdev.o \ > + rockchip_drm_gem.o rockchip_drm_vop.o > + > +obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c > new file mode 100644 > index 0000000..a571acc > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c > @@ -0,0 +1,516 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * based on exynos_drm_drv.c > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#include <asm/dma-iommu.h> > + > +#include <drm/drmP.h> > +#include <drm/drm_crtc_helper.h> > +#include <drm/drm_fb_helper.h> > +#include <linux/dma-mapping.h> > +#include <linux/pm_runtime.h> > +#include <linux/of_graph.h> > +#include <linux/component.h> > + > +#include "rockchip_drm_drv.h" > +#include "rockchip_drm_fb.h" > +#include "rockchip_drm_fbdev.h" > +#include "rockchip_drm_gem.h" > + > +#define DRIVER_NAME "rockchip" > +#define DRIVER_DESC "RockChip Soc DRM" > +#define DRIVER_DATE "20140818" > +#define DRIVER_MAJOR 1 > +#define DRIVER_MINOR 0 > + > +/* > + * Attach a (component) device to the shared drm dma mapping from master drm > + * device. This is used by the VOPs to map GEM buffers to a common DMA > + * mapping. > + */ > +int rockchip_drm_dma_attach_device(struct drm_device *drm_dev, > + struct device *dev) > +{ > + struct dma_iommu_mapping *mapping = drm_dev->dev->archdata.mapping; > + int ret; > + > + ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); > + if (ret) > + return ret; > + > + dma_set_max_seg_size(dev, 0xffffffffu); Perhaps: dma_set_max_seg_size(dev, DMA_BIT_MASK(32)); > + > + return arm_iommu_attach_device(dev, mapping); > +} > + > +void rockchip_drm_dma_detach_device(struct drm_device *drm_dev, > + struct device *dev) > +{ > + arm_iommu_detach_device(drm_dev->dev); > +} > + > +static int rockchip_drm_load(struct drm_device *drm_dev, unsigned long flags) > +{ > + struct rockchip_drm_private *private; > + struct dma_iommu_mapping *mapping; > + struct device *dev = drm_dev->dev; > + int ret; > + > + private = devm_kzalloc(drm_dev->dev, sizeof(*private), GFP_KERNEL); > + if (!private) > + return -ENOMEM; > + > + drm_dev->dev_private = private; > + > + drm_mode_config_init(drm_dev); > + > + rockchip_drm_mode_config_init(drm_dev); > + > + dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms), > + GFP_KERNEL); > + if (!dev->dma_parms) { > + ret = -ENOMEM; > + goto err_config_cleanup; > + } > + > + /* TODO(djkurtz): fetch the mapping start/size from somewhere */ > + mapping = arm_iommu_create_mapping(&platform_bus_type, 0x10000000, > + SZ_1G); Can we make this bigger, and aligned to the requested size? I find it makes it easier to debug that way. How about: mapping = arm_iommu_create_mapping(&platform_bus_type, 0x80000000, SZ_2G); In fact, is there any reason why we do not just make this a 4GB mapping starting at 0x00000000? Is that even possible? > + if (IS_ERR(mapping)) { > + ret = PTR_ERR(mapping); > + goto err_config_cleanup; > + } > + > + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); > + if (ret) > + goto err_release_mapping; > + > + dma_set_max_seg_size(dev, 0xffffffffu); see above. > + > + ret = arm_iommu_attach_device(dev, mapping); > + if (ret) > + goto err_release_mapping; > + > + /* Try to bind all sub drivers. */ > + ret = component_bind_all(dev, drm_dev); > + if (ret) > + goto err_detach_device; > + > + /* init kms poll for handling hpd */ > + drm_kms_helper_poll_init(drm_dev); > + > + /* > + * enable drm irq mode. > + * - with irq_enabled = true, we can use the vblank feature. > + */ > + drm_dev->irq_enabled = true; > + > + /* > + * with vblank_disable_allowed = true, vblank interrupt will be disabled > + * by drm timer once a current process gives up ownership of > + * vblank event.(after drm_vblank_put function is called) > + */ > + drm_dev->vblank_disable_allowed = true; > + > + ret = drm_vblank_init(drm_dev, ROCKCHIP_MAX_CRTC); > + if (ret) > + goto err_kms_helper_poll_fini; > + > + rockchip_drm_fbdev_init(drm_dev); > + > + /* force connectors detection */ > + drm_helper_hpd_irq_event(drm_dev); > + > + return 0; > + > +err_kms_helper_poll_fini: > + drm_kms_helper_poll_fini(drm_dev); > + component_unbind_all(dev, drm_dev); > +err_detach_device: > + arm_iommu_detach_device(dev); > +err_release_mapping: > + arm_iommu_release_mapping(dev->archdata.mapping); > +err_config_cleanup: > + drm_mode_config_cleanup(drm_dev); > + drm_dev->dev_private = NULL; > + return ret; > +} > + > +static int rockchip_drm_unload(struct drm_device *drm_dev) > +{ > + struct device *dev = drm_dev->dev; > + > + drm_kms_helper_poll_fini(drm_dev); > + component_unbind_all(dev, drm_dev); > + arm_iommu_detach_device(dev); > + arm_iommu_release_mapping(dev->archdata.mapping); > + drm_mode_config_cleanup(drm_dev); > + drm_dev->dev_private = NULL; > + > + return 0; > +} > + > +void rockchip_drm_lastclose(struct drm_device *dev) > +{ > + struct rockchip_drm_private *priv = dev->dev_private; > + > + if (priv->fb_helper) > + drm_fb_helper_restore_fbdev_mode_unlocked(priv->fb_helper); > +} > + > +static const struct file_operations rockchip_drm_driver_fops = { > + .owner = THIS_MODULE, > + .open = drm_open, > + .mmap = rockchip_drm_gem_mmap, > + .poll = drm_poll, > + .read = drm_read, > + .unlocked_ioctl = drm_ioctl, > +#ifdef CONFIG_COMPAT > + .compat_ioctl = drm_compat_ioctl, > +#endif > + .release = drm_release, > +}; > + > +const struct vm_operations_struct rockchip_drm_vm_ops = { > + .open = drm_gem_vm_open, > + .close = drm_gem_vm_close, > +}; > + > +static struct drm_driver rockchip_drm_driver = { > + .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, > + .load = rockchip_drm_load, > + .unload = rockchip_drm_unload, > + .lastclose = rockchip_drm_lastclose, > + .get_vblank_counter = drm_vblank_count, > + .enable_vblank = rockchip_drm_crtc_enable_vblank, > + .disable_vblank = rockchip_drm_crtc_disable_vblank, > + .gem_vm_ops = &rockchip_drm_vm_ops, > + .gem_free_object = rockchip_gem_free_object, > + .dumb_create = rockchip_gem_dumb_create, > + .dumb_map_offset = rockchip_gem_dumb_map_offset, > + .dumb_destroy = drm_gem_dumb_destroy, > + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, > + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, > + .gem_prime_import = drm_gem_prime_import, > + .gem_prime_export = drm_gem_prime_export, > + .gem_prime_get_sg_table = rockchip_gem_prime_get_sg_table, > + .gem_prime_vmap = rockchip_gem_prime_vmap, > + .gem_prime_vunmap = rockchip_gem_prime_vunmap, > + .gem_prime_mmap = rockchip_gem_prime_mmap, > + .fops = &rockchip_drm_driver_fops, > + .name = DRIVER_NAME, > + .desc = DRIVER_DESC, > + .date = DRIVER_DATE, > + .major = DRIVER_MAJOR, > + .minor = DRIVER_MINOR, > +}; > + > +#ifdef CONFIG_PM_SLEEP > +static int rockchip_drm_suspend(struct drm_device *dev, pm_message_t state) > +{ > + struct drm_connector *connector; > + > + drm_modeset_lock_all(dev); > + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { > + int old_dpms = connector->dpms; > + > + if (connector->funcs->dpms) > + connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF); > + > + /* Set the old mode back to the connector for resume */ > + connector->dpms = old_dpms; > + } > + drm_modeset_unlock_all(dev); > + > + return 0; > +} > + > +static int rockchip_drm_resume(struct drm_device *dev) > +{ > + struct drm_connector *connector; > + > + drm_modeset_lock_all(dev); > + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { > + if (connector->funcs->dpms) > + connector->funcs->dpms(connector, connector->dpms); > + } > + drm_modeset_unlock_all(dev); > + > + drm_helper_resume_force_mode(dev); > + > + return 0; > +} > + > +static int rockchip_drm_sys_suspend(struct device *dev) > +{ > + struct drm_device *drm_dev = dev_get_drvdata(dev); > + pm_message_t message; > + > + if (pm_runtime_suspended(dev)) > + return 0; > + > + message.event = PM_EVENT_SUSPEND; > + > + return rockchip_drm_suspend(drm_dev, message); > +} > + > +static int rockchip_drm_sys_resume(struct device *dev) > +{ > + struct drm_device *drm_dev = dev_get_drvdata(dev); > + > + if (!pm_runtime_suspended(dev)) > + return 0; > + > + return rockchip_drm_resume(drm_dev); > +} > +#endif > + > +static const struct dev_pm_ops rockchip_drm_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(rockchip_drm_sys_suspend, > + rockchip_drm_sys_resume) > +}; > + > +int rockchip_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, > + struct device_node *np) > +{ > + struct rockchip_drm_private *priv = drm->dev_private; > + struct device_node *port; > + int pipe; > + > + if (priv->num_pipe >= ROCKCHIP_MAX_CRTC) > + return -EINVAL; > + > + port = of_get_child_by_name(np, "port"); > + if (!port) { > + dev_err(drm->dev, "no port node found in %s\n", > + np->full_name); > + return -ENXIO; > + } > + pipe = priv->num_pipe++; > + crtc->port = port; > + > + priv->crtc[pipe] = crtc; > + > + return pipe; > +} > + > +void rockchip_drm_remove_crtc(struct drm_device *drm, int pipe) > +{ > + struct rockchip_drm_private *priv = drm->dev_private; > + > + priv->num_pipe--; > + of_node_put(priv->crtc[pipe]->port); > + priv->crtc[pipe] = NULL; > +} > + > +struct drm_crtc *rockchip_drm_find_crtc(struct drm_device *drm, int pipe) > +{ > + struct rockchip_drm_private *priv = drm->dev_private; > + > + if (pipe < ROCKCHIP_MAX_CRTC && priv->crtc[pipe]) > + return priv->crtc[pipe]; > + > + return NULL; > +} > + > +/* > + * @node: device tree node containing encoder input ports > + * @encoder: drm_encoder > + */ > +int rockchip_drm_encoder_get_mux_id(struct device_node *node, > + struct drm_encoder *encoder) > +{ > + struct device_node *ep = NULL; > + struct drm_crtc *crtc = encoder->crtc; > + struct of_endpoint endpoint; > + struct device_node *port; > + int ret; > + > + if (!node || !crtc) > + return -EINVAL; > + > + do { > + ep = of_graph_get_next_endpoint(node, ep); > + if (!ep) > + break; > + > + port = of_graph_get_remote_port(ep); > + of_node_put(port); > + if (port == crtc->port) { > + ret = of_graph_parse_endpoint(ep, &endpoint); > + return ret ?: endpoint.id; > + } > + } while (ep); > + > + return -EINVAL; > +} > + > +static int compare_of(struct device *dev, void *data) > +{ > + struct device_node *np = data; > + > + return dev->of_node == np; > +} > + > +static void rockchip_add_endpoints(struct device *dev, > + struct component_match **match, > + struct device_node *port) > +{ > + struct device_node *ep, *remote; > + > + for_each_child_of_node(port, ep) { > + remote = of_graph_get_remote_port_parent(ep); > + if (!remote || !of_device_is_available(remote)) { > + of_node_put(remote); > + continue; > + } else if (!of_device_is_available(remote->parent)) { > + dev_warn(dev, "parent device of %s is not available\n", > + remote->full_name); > + of_node_put(remote); > + continue; > + } > + > + component_match_add(dev, match, compare_of, remote); > + of_node_put(remote); > + } > +} > + > +static int rockchip_drm_bind(struct device *dev) > +{ > + struct drm_device *drm; > + int ret; > + > + drm = drm_dev_alloc(&rockchip_drm_driver, dev); > + if (!drm) > + return -ENOMEM; > + > + ret = drm_dev_set_unique(drm, "%s", dev_name(dev)); > + if (ret) > + goto err_free; > + > + ret = drm_dev_register(drm, 0); > + if (ret) > + goto err_free; > + > + dev_set_drvdata(dev, drm); > + > + return 0; > + > +err_free: > + drm_dev_unref(drm); > + return ret; > +} > + > +static void rockchip_drm_unbind(struct device *dev) > +{ > + struct drm_device *drm = dev_get_drvdata(dev); > + > + drm_dev_unregister(drm); > + drm_dev_unref(drm); > +} > + > +static const struct component_master_ops rockchip_drm_ops = { > + .bind = rockchip_drm_bind, > + .unbind = rockchip_drm_unbind, > +}; > + > +static int rockchip_drm_platform_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct component_match *match = NULL; > + struct device_node *np = dev->of_node; > + struct device_node *port; > + int i; > + int ret; > + > + if (!np) > + return -ENODEV; > + /* > + * Bind the crtc ports first, so that > + * drm_of_find_possible_crtcs called from encoder .bind callbacks > + * works as expected. > + */ > + for (i = 0;; i++) { > + port = of_parse_phandle(np, "ports", i); > + if (!port) > + break; > + > + if (!of_device_is_available(port->parent)) { > + of_node_put(port); > + continue; > + } > + > + component_match_add(dev, &match, compare_of, port->parent); > + of_node_put(port); > + } > + > + if (i == 0) { > + dev_err(dev, "missing 'ports' property\n"); > + return -ENODEV; > + } > + /* > + * For each bound crtc, bind the encoders attached to its > + * remote endpoint. > + */ > + for (i = 0;; i++) { > + port = of_parse_phandle(np, "ports", i); > + if (!port) > + break; > + > + if (!of_device_is_available(port->parent)) { > + of_node_put(port); > + continue; > + } > + > + rockchip_add_endpoints(dev, &match, port); > + of_node_put(port); > + } > + > + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); > + if (ret) > + return ret; This is in drm_load() now. > + > + return component_master_add_with_match(dev, &rockchip_drm_ops, match); > +} > + > +static int rockchip_drm_platform_remove(struct platform_device *pdev) > +{ > + component_master_del(&pdev->dev, &rockchip_drm_ops); > + > + return 0; > +} > + > +static const struct of_device_id rockchip_drm_dt_ids[] = { > + { .compatible = "rockchip,display-subsystem", }, > + { /* sentinel */ }, > +}; > +MODULE_DEVICE_TABLE(of, rockchip_drm_dt_ids); > + > +static struct platform_driver rockchip_drm_platform_driver = { > + .probe = rockchip_drm_platform_probe, > + .remove = rockchip_drm_platform_remove, > + .driver = { > + .owner = THIS_MODULE, > + .name = "rockchip-drm", > + .of_match_table = rockchip_drm_dt_ids, > + .pm = &rockchip_drm_pm_ops, > + }, > +}; > + > +module_platform_driver(rockchip_drm_platform_driver); > + > +MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>"); > +MODULE_DESCRIPTION("ROCKCHIP DRM Driver"); > +MODULE_LICENSE("GPL v2"); > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h > new file mode 100644 > index 0000000..98094ecf > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h > @@ -0,0 +1,61 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * based on exynos_drm_drv.h > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#ifndef _ROCKCHIP_DRM_DRV_H > +#define _ROCKCHIP_DRM_DRV_H > + > +#include <linux/module.h> > +#include <linux/component.h> > + > +#define ROCKCHIP_MAX_FB_BUFFER 3 > +#define ROCKCHIP_MAX_CONNECTOR 2 > +#define ROCKCHIP_MAX_CRTC 2 > + > +struct drm_device; > +struct drm_connector; > + > +/* > + * Rockchip drm private structure. > + * > + * @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc. > + * @num_pipe: number of pipes for this device. > + */ > +struct rockchip_drm_private { > + struct drm_fb_helper *fb_helper; > + /* > + * created crtc object would be contained at this array and > + * this array is used to be aware of which crtc did it request vblank. > + */ > + struct drm_crtc *crtc[ROCKCHIP_MAX_CRTC]; > + > + unsigned int num_pipe; > +}; > + > +int rockchip_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, > + struct device_node *port); > +void rockchip_drm_remove_crtc(struct drm_device *drm, int pipe); > +struct drm_crtc *rockchip_drm_find_crtc(struct drm_device *drm, int pipe); > +int rockchip_drm_encoder_get_mux_id(struct device_node *node, > + struct drm_encoder *encoder); > +int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type); > +int rockchip_drm_crtc_enable_vblank(struct drm_device *dev, int pipe); > +void rockchip_drm_crtc_disable_vblank(struct drm_device *dev, int pipe); > +int rockchip_drm_dma_attach_device(struct drm_device *drm_dev, > + struct device *dev); > +void rockchip_drm_dma_detach_device(struct drm_device *drm_dev, > + struct device *dev); > + > +#endif /* _ROCKCHIP_DRM_DRV_H_ */ > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c > new file mode 100644 > index 0000000..482f7b8 > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c > @@ -0,0 +1,201 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#include <linux/kernel.h> > +#include <drm/drm.h> > +#include <drm/drmP.h> > +#include <drm/drm_fb_helper.h> > +#include <drm/drm_crtc_helper.h> > + > +#include "rockchip_drm_drv.h" > +#include "rockchip_drm_gem.h" > + > +#define to_rockchip_fb(x) container_of(x, struct rockchip_drm_fb, fb) > + > +struct rockchip_drm_fb { > + struct drm_framebuffer fb; > + struct drm_gem_object *obj[ROCKCHIP_MAX_FB_BUFFER]; > +}; > + > +struct drm_gem_object *rockchip_fb_get_gem_obj(struct drm_framebuffer *fb, > + unsigned int plane) > +{ > + struct rockchip_drm_fb *rk_fb = to_rockchip_fb(fb); > + > + if (plane >= ROCKCHIP_MAX_FB_BUFFER) > + return NULL; > + > + return rk_fb->obj[plane]; > +} > + > +static void rockchip_drm_fb_destroy(struct drm_framebuffer *fb) > +{ > + struct rockchip_drm_fb *rockchip_fb = to_rockchip_fb(fb); > + struct drm_gem_object *obj; > + int i; > + > + for (i = 0; i < ROCKCHIP_MAX_FB_BUFFER; i++) { > + obj = rockchip_fb->obj[i]; > + if (obj) > + drm_gem_object_unreference_unlocked(obj); > + } > + > + drm_framebuffer_cleanup(fb); > + kfree(rockchip_fb); > +} > + > +static int rockchip_drm_fb_create_handle(struct drm_framebuffer *fb, > + struct drm_file *file_priv, > + unsigned int *handle) > +{ > + struct rockchip_drm_fb *rockchip_fb = to_rockchip_fb(fb); > + > + return drm_gem_handle_create(file_priv, > + rockchip_fb->obj[0], handle); > +} > + > +static struct drm_framebuffer_funcs rockchip_drm_fb_funcs = { > + .destroy = rockchip_drm_fb_destroy, > + .create_handle = rockchip_drm_fb_create_handle, > +}; > + > +static struct rockchip_drm_fb * > +rockchip_fb_alloc(struct drm_device *dev, struct drm_mode_fb_cmd2 *mode_cmd, > + struct drm_gem_object **obj, unsigned int num_planes) > +{ > + struct rockchip_drm_fb *rockchip_fb; > + int ret; > + int i; > + > + rockchip_fb = kzalloc(sizeof(*rockchip_fb), GFP_KERNEL); > + if (!rockchip_fb) > + return ERR_PTR(-ENOMEM); > + > + drm_helper_mode_fill_fb_struct(&rockchip_fb->fb, mode_cmd); > + > + for (i = 0; i < num_planes; i++) > + rockchip_fb->obj[i] = obj[i]; > + > + ret = drm_framebuffer_init(dev, &rockchip_fb->fb, > + &rockchip_drm_fb_funcs); > + if (ret) { > + dev_err(dev->dev, "Failed to initialize framebuffer: %d\n", > + ret); > + kfree(rockchip_fb); > + return ERR_PTR(ret); > + } > + > + return rockchip_fb; > +} > + > +static struct drm_framebuffer * > +rockchip_user_fb_create(struct drm_device *dev, struct drm_file *file_priv, > + struct drm_mode_fb_cmd2 *mode_cmd) > +{ > + struct rockchip_drm_fb *rockchip_fb; > + struct drm_gem_object *objs[ROCKCHIP_MAX_FB_BUFFER]; > + struct drm_gem_object *obj; > + unsigned int hsub; > + unsigned int vsub; > + int num_planes; > + int ret; > + int i; > + > + hsub = drm_format_horz_chroma_subsampling(mode_cmd->pixel_format); > + vsub = drm_format_vert_chroma_subsampling(mode_cmd->pixel_format); > + num_planes = min(drm_format_num_planes(mode_cmd->pixel_format), > + ROCKCHIP_MAX_FB_BUFFER); > + > + for (i = 0; i < num_planes; i++) { > + unsigned int width = mode_cmd->width / (i ? hsub : 1); > + unsigned int height = mode_cmd->height / (i ? vsub : 1); > + unsigned int min_size; > + > + obj = drm_gem_object_lookup(dev, file_priv, > + mode_cmd->handles[i]); > + if (!obj) { > + dev_err(dev->dev, "Failed to lookup GEM object\n"); > + ret = -ENXIO; > + goto err_gem_object_unreference; > + } > + > + min_size = (height - 1) * mode_cmd->pitches[i] + > + mode_cmd->offsets[i] + > + width * drm_format_plane_cpp(mode_cmd->pixel_format, i); > + > + if (obj->size < min_size) { > + drm_gem_object_unreference_unlocked(obj); > + ret = -EINVAL; > + goto err_gem_object_unreference; > + } > + objs[i] = obj; > + } > + > + rockchip_fb = rockchip_fb_alloc(dev, mode_cmd, objs, i); > + if (IS_ERR(rockchip_fb)) { > + ret = PTR_ERR(rockchip_fb); > + goto err_gem_object_unreference; > + } > + > + return &rockchip_fb->fb; > + > +err_gem_object_unreference: > + for (i--; i >= 0; i--) > + drm_gem_object_unreference_unlocked(objs[i]); > + return ERR_PTR(ret); > +} > + > +static void rockchip_drm_output_poll_changed(struct drm_device *dev) > +{ > + struct rockchip_drm_private *private = dev->dev_private; > + struct drm_fb_helper *fb_helper = private->fb_helper; > + > + if (fb_helper) > + drm_fb_helper_hotplug_event(fb_helper); > +} > + > +static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = { > + .fb_create = rockchip_user_fb_create, > + .output_poll_changed = rockchip_drm_output_poll_changed, > +}; > + > +struct drm_framebuffer * > +rockchip_drm_framebuffer_init(struct drm_device *dev, > + struct drm_mode_fb_cmd2 *mode_cmd, > + struct drm_gem_object *obj) > +{ > + struct rockchip_drm_fb *rockchip_fb; > + > + rockchip_fb = rockchip_fb_alloc(dev, mode_cmd, &obj, 1); > + if (IS_ERR(rockchip_fb)) > + return NULL; > + > + return &rockchip_fb->fb; > +} > + > +void rockchip_drm_mode_config_init(struct drm_device *dev) > +{ > + dev->mode_config.min_width = 0; > + dev->mode_config.min_height = 0; > + > + /* > + * set max width and height as default value(4096x4096). > + * this value would be used to check framebuffer size limitation > + * at drm_mode_addfb(). > + */ > + dev->mode_config.max_width = 4096; > + dev->mode_config.max_height = 4096; > + > + dev->mode_config.funcs = &rockchip_drm_mode_config_funcs; > +} > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.h b/drivers/gpu/drm/rockchip/rockchip_drm_fb.h > new file mode 100644 > index 0000000..09574d4 > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.h > @@ -0,0 +1,28 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#ifndef _ROCKCHIP_DRM_FB_H > +#define _ROCKCHIP_DRM_FB_H > + > +struct drm_framebuffer * > +rockchip_drm_framebuffer_init(struct drm_device *dev, > + struct drm_mode_fb_cmd2 *mode_cmd, > + struct drm_gem_object *obj); > +void rockchip_drm_framebuffer_fini(struct drm_framebuffer *fb); > + > +void rockchip_drm_mode_config_init(struct drm_device *dev); > + > +struct drm_gem_object *rockchip_fb_get_gem_obj(struct drm_framebuffer *fb, > + unsigned int plane); > +#endif /* _ROCKCHIP_DRM_FB_H */ > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c > new file mode 100644 > index 0000000..ae563f5 > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c > @@ -0,0 +1,230 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#include <drm/drm.h> > +#include <drm/drmP.h> > +#include <drm/drm_fb_helper.h> > +#include <drm/drm_crtc_helper.h> > + > +#include "rockchip_drm_drv.h" > +#include "rockchip_drm_gem.h" > +#include "rockchip_drm_fb.h" > + > +#define PREFERRED_BPP 32 > +#define to_rockchip_fbdev(x) container_of(x, struct rockchip_fbdev, helper) > + > +struct rockchip_fbdev { > + struct drm_fb_helper helper; > + struct drm_gem_object *bo; > +}; > + > +static int rockchip_fbdev_mmap(struct fb_info *info, > + struct vm_area_struct *vma) > +{ > + struct drm_fb_helper *helper = info->par; > + struct rockchip_fbdev *fbdev = to_rockchip_fbdev(helper); > + > + return rockchip_gem_mmap(fbdev->bo, vma); > +} > + > +static struct fb_ops rockchip_drm_fbdev_ops = { > + .owner = THIS_MODULE, > + .fb_mmap = rockchip_fbdev_mmap, > + .fb_fillrect = cfb_fillrect, > + .fb_copyarea = cfb_copyarea, > + .fb_imageblit = cfb_imageblit, > + .fb_check_var = drm_fb_helper_check_var, > + .fb_set_par = drm_fb_helper_set_par, > + .fb_blank = drm_fb_helper_blank, > + .fb_pan_display = drm_fb_helper_pan_display, > + .fb_setcmap = drm_fb_helper_setcmap, > +}; > + > +static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper, > + struct drm_fb_helper_surface_size *sizes) > +{ > + struct rockchip_fbdev *fbdev = to_rockchip_fbdev(helper); > + struct drm_mode_fb_cmd2 mode_cmd = { 0 }; > + struct drm_device *dev = helper->dev; > + struct rockchip_gem_object *rk_obj; > + struct drm_framebuffer *fb; > + unsigned int bytes_per_pixel; > + unsigned long offset; > + struct fb_info *fbi; > + size_t size; > + int ret; > + > + bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8); > + > + mode_cmd.width = sizes->surface_width; > + mode_cmd.height = sizes->surface_height; > + mode_cmd.pitches[0] = sizes->surface_width * bytes_per_pixel; > + mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, > + sizes->surface_depth); > + > + size = mode_cmd.pitches[0] * mode_cmd.height; > + > + rk_obj = rockchip_gem_create_object(dev, size); > + if (IS_ERR(rk_obj)) > + return -ENOMEM; > + > + fbdev->bo = &rk_obj->base; > + > + fbi = framebuffer_alloc(0, dev->dev); > + if (!fbi) { > + dev_err(dev->dev, "Failed to allocate framebuffer info.\n"); > + ret = -ENOMEM; > + goto err_rockchip_gem_free_object; > + } > + > + helper->fb = rockchip_drm_framebuffer_init(dev, &mode_cmd, fbdev->bo); > + if (IS_ERR(helper->fb)) { > + dev_err(dev->dev, "Failed to allocate DRM framebuffer.\n"); > + ret = PTR_ERR(helper->fb); > + goto err_framebuffer_release; > + } > + > + helper->fbdev = fbi; > + > + fbi->par = helper; > + fbi->flags = FBINFO_FLAG_DEFAULT; > + fbi->fbops = &rockchip_drm_fbdev_ops; > + > + ret = fb_alloc_cmap(&fbi->cmap, 256, 0); > + if (ret) { > + dev_err(dev->dev, "Failed to allocate color map.\n"); > + goto err_drm_framebuffer_unref; > + } > + > + fb = helper->fb; > + drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth); > + drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height); > + > + offset = fbi->var.xoffset * bytes_per_pixel; > + offset += fbi->var.yoffset * fb->pitches[0]; > + > + dev->mode_config.fb_base = 0; > + fbi->screen_base = rk_obj->kvaddr + offset; > + fbi->screen_size = rk_obj->base.size; > + fbi->fix.smem_len = rk_obj->base.size; > + > + DRM_DEBUG_KMS("FB [%dx%d]-%d kvaddr=%p offset=%ld size=%d\n", > + fb->width, fb->height, fb->depth, rk_obj->kvaddr, > + offset, size); > + return 0; > + > +err_drm_framebuffer_unref: > + drm_framebuffer_unreference(helper->fb); > +err_framebuffer_release: > + framebuffer_release(fbi); > +err_rockchip_gem_free_object: > + rockchip_gem_free_object(&rk_obj->base); > + return ret; > +} > + > +static struct drm_fb_helper_funcs rockchip_drm_fb_helper_funcs = { > + .fb_probe = rockchip_drm_fbdev_create, > +}; > + > +int rockchip_drm_fbdev_init(struct drm_device *dev) > +{ > + struct rockchip_drm_private *private = dev->dev_private; > + struct rockchip_fbdev *fbdev; > + struct drm_fb_helper *helper; > + unsigned int num_crtc; > + int ret; > + > + if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector) > + return -EINVAL; > + > + if (private->fb_helper) { > + DRM_ERROR("no allow to reinit fbdev\n"); > + return -EINVAL; > + } > + > + num_crtc = dev->mode_config.num_crtc; > + > + fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL); Can you just embed rockchip_fbdev in struct rockchip_drm_private... Or, just add its two fields to rockchip_drm_private: struct drm_fb_helper fbdev_helper; struct drm_gem_object *fbdev_bo; It would eliminate some of the complexity in _fbdev_init, and especially in _fbdev_fini. > + if (!fbdev) > + return -ENOMEM; > + > + fbdev->helper.funcs = &rockchip_drm_fb_helper_funcs; > + helper = &fbdev->helper; > + > + ret = drm_fb_helper_init(dev, helper, num_crtc, ROCKCHIP_MAX_CONNECTOR); > + if (ret < 0) { > + dev_err(dev->dev, "Failed to initialize drm fb helper.\n"); > + goto err_free; > + } > + > + ret = drm_fb_helper_single_add_all_connectors(helper); > + if (ret < 0) { > + dev_err(dev->dev, "Failed to add connectors.\n"); > + goto err_drm_fb_helper_fini; > + } > + > + /* disable all the possible outputs/crtcs before entering KMS mode */ > + drm_helper_disable_unused_functions(dev); > + > + ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP); > + if (ret < 0) { > + dev_err(dev->dev, "Failed to set initial hw configuration.\n"); > + goto err_drm_fb_helper_fini; > + } > + > + private->fb_helper = helper; > + > + return 0; > + > +err_drm_fb_helper_fini: > + drm_fb_helper_fini(helper); > +err_free: > + kfree(fbdev); > + return ret; > +} > + > +void rockchip_drm_fbdev_fini(struct drm_device *dev) > +{ > + struct rockchip_drm_private *private = dev->dev_private; > + struct drm_fb_helper *helper; > + struct rockchip_fbdev *fbdev; > + > + if (!private || !private->fb_helper) > + return; Can these ever be NULL here? > + > + helper = private->fb_helper; > + fbdev = to_rockchip_fbdev(helper); > + > + if (helper->fbdev) { > + struct fb_info *info; > + int ret; > + > + info = helper->fbdev; > + ret = unregister_framebuffer(info); > + if (ret < 0) > + DRM_DEBUG_KMS("failed unregister_framebuffer()\n"); > + > + if (info->cmap.len) > + fb_dealloc_cmap(&info->cmap); > + > + framebuffer_release(info); > + } > + > + if (helper->fb) > + drm_framebuffer_unreference(helper->fb); > + > + drm_fb_helper_fini(helper); > + kfree(fbdev); > + private->fb_helper = NULL; > +} > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h > new file mode 100644 > index 0000000..5edcf6a > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h > @@ -0,0 +1,20 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#ifndef _ROCKCHIP_DRM_FBDEV_H > +#define _ROCKCHIP_DRM_FBDEV_H > + > +int rockchip_drm_fbdev_init(struct drm_device *dev); > + > +#endif /* _ROCKCHIP_DRM_FBDEV_H */ > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c > new file mode 100644 > index 0000000..5563dff > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c > @@ -0,0 +1,345 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#include <drm/drm.h> > +#include <drm/drmP.h> > +#include <drm/drm_vma_manager.h> > + > +#include <linux/anon_inodes.h> > +#include <linux/dma-attrs.h> > + > +#include "rockchip_drm_drv.h" > +#include "rockchip_drm_gem.h" > + > +static int rockchip_gem_alloc_buf(struct rockchip_gem_object *rk_obj) > +{ > + struct drm_gem_object *obj = &rk_obj->base; > + struct drm_device *drm = obj->dev; > + > + init_dma_attrs(&rk_obj->dma_attrs); > + dma_set_attr(DMA_ATTR_WRITE_COMBINE, &rk_obj->dma_attrs); > + > + /* TODO(djkurtz): Use DMA_ATTR_NO_KERNEL_MAPPING except for fbdev */ > + rk_obj->kvaddr = dma_alloc_attrs(drm->dev, obj->size, > + &rk_obj->dma_addr, GFP_KERNEL, > + &rk_obj->dma_attrs); > + if (IS_ERR(rk_obj->kvaddr)) { > + int ret = PTR_ERR(rk_obj->kvaddr); > + > + DRM_ERROR("failed to allocate %#x byte dma buffer, %d", > + obj->size, ret); > + return ret; > + } > + > + return 0; > +} > + > +static void rockchip_gem_free_buf(struct rockchip_gem_object *rk_obj) > +{ > + struct drm_gem_object *obj = &rk_obj->base; > + struct drm_device *drm = obj->dev; > + > + dma_free_attrs(drm->dev, obj->size, rk_obj->kvaddr, rk_obj->dma_addr, > + &rk_obj->dma_attrs); > +} > + > +/* drm driver mmap file operations */ > +int rockchip_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) > +{ > + struct drm_file *priv = filp->private_data; > + struct drm_device *dev = priv->minor->dev; > + struct drm_gem_object *obj; > + struct drm_vma_offset_node *node; > + int ret; > + > + if (drm_device_is_unplugged(dev)) > + return -ENODEV; > + > + mutex_lock(&dev->struct_mutex); > + > + node = drm_vma_offset_exact_lookup(dev->vma_offset_manager, > + vma->vm_pgoff, > + vma_pages(vma)); > + if (!node) { > + mutex_unlock(&dev->struct_mutex); > + DRM_ERROR("failed to find vma node.\n"); > + return -EINVAL; > + } else if (!drm_vma_node_is_allowed(node, filp)) { > + mutex_unlock(&dev->struct_mutex); > + return -EACCES; > + } > + > + obj = container_of(node, struct drm_gem_object, vma_node); > + ret = rockchip_gem_mmap(obj, vma); > + > + mutex_unlock(&dev->struct_mutex); > + > + return ret; > +} > + > +int rockchip_drm_gem_mmap_buffer(struct file *filp, > + struct vm_area_struct *vma) > +{ > + struct drm_gem_object *obj = filp->private_data; > + > + return rockchip_gem_mmap(obj, vma); > +} > + > +static const struct file_operations rockchip_drm_gem_fops = { > + .mmap = rockchip_drm_gem_mmap_buffer, > +}; > + > +struct rockchip_gem_object * > + rockchip_gem_create_object(struct drm_device *drm, unsigned int size) > +{ > + struct rockchip_gem_object *rk_obj; > + struct drm_gem_object *obj; > + struct file *filp; > + int ret; > + > + size = round_up(size, PAGE_SIZE); > + > + rk_obj = kzalloc(sizeof(*rk_obj), GFP_KERNEL); > + if (!rk_obj) > + return ERR_PTR(-ENOMEM); > + > + obj = &rk_obj->base; > + > + drm_gem_private_object_init(drm, obj, size); > + > + filp = anon_inode_getfile("rockchip_gem", &rockchip_drm_gem_fops, > + obj, 0); > + if (IS_ERR(filp)) { > + DRM_ERROR("failed to create anon file object.\n"); > + ret = PTR_ERR(filp); > + goto err_free_rk_obj; > + } > + filp->f_mode = FMODE_READ | FMODE_WRITE; > + obj->filp = filp; I think this chunk goes away now, if we do not have custom gem mmap ioctl? an Along with rockchip_drm_gem_fops and rockchip_drm_gem_mmap_buffer. > + > + ret = drm_gem_create_mmap_offset(obj); > + if (ret) > + goto err_free_obj; > + > + ret = rockchip_gem_alloc_buf(rk_obj); > + if (ret) > + goto err_free_mmap_offset; > + > + return rk_obj; > + > +err_free_mmap_offset: > + drm_gem_free_mmap_offset(obj); > +err_free_obj: > + drm_gem_object_release(obj); > +err_free_rk_obj: > + kfree(rk_obj); > + return ERR_PTR(ret); > +} > + > +/* > + * rockchip_gem_free_object - (struct drm_driver)->gem_free_object callback > + * function > + */ > +void rockchip_gem_free_object(struct drm_gem_object *obj) > +{ > + struct rockchip_gem_object *rk_obj; > + > + drm_gem_free_mmap_offset(obj); > + > + rk_obj = to_rockchip_obj(obj); > + > + rockchip_gem_free_buf(rk_obj); > + > + drm_gem_object_release(obj); > + > + kfree(rk_obj); > +} > + > +int rockchip_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) Nit: Can you move this function up just below rockchip_gem_free_buf. That would put these three dma_*_attrs() wrapper functions in one place. > +{ > + struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); > + struct drm_device *drm = obj->dev; > + unsigned long vm_size; > + > + vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; > + vm_size = vma->vm_end - vma->vm_start; > + > + if (vm_size > obj->size) > + return -EINVAL; > + > + return dma_mmap_attrs(drm->dev, vma, rk_obj->kvaddr, rk_obj->dma_addr, > + obj->size, &rk_obj->dma_attrs); > +} > + > +/* > + * rockchip_gem_create_with_handle - allocate an object with the given > + * size and create a gem handle on it > + * > + * returns a struct rockchip_gem_object* on success or ERR_PTR values > + * on failure. > + */ > +static struct rockchip_gem_object * > +rockchip_gem_create_with_handle(struct drm_file *file_priv, > + struct drm_device *drm, unsigned int size, > + unsigned int *handle) > +{ > + struct rockchip_gem_object *rk_obj; > + struct drm_gem_object *obj; > + int ret; > + > + rk_obj = rockchip_gem_create_object(drm, size); > + if (IS_ERR(rk_obj)) > + return NULL; Should this be: return ERR_CAST(rk_obj); > + > + obj = &rk_obj->base; > + > + /* > + * allocate a id of idr table where the obj is registered > + * and handle has the id what user can see. > + */ > + ret = drm_gem_handle_create(file_priv, obj, handle); > + if (ret) > + goto err_handle_create; > + > + /* drop reference from allocate - handle holds it now. */ > + drm_gem_object_unreference_unlocked(obj); > + > + return rk_obj; > + > +err_handle_create: > + rockchip_gem_free_object(obj); > + > + return ERR_PTR(ret); > +} > + > +int rockchip_gem_dumb_map_offset(struct drm_file *file_priv, > + struct drm_device *dev, uint32_t handle, > + uint64_t *offset) > +{ > + struct drm_gem_object *obj; > + int ret = 0; Nit: No = 0; (I am a fan of letting the compiler tell us if we forget to initialize a return value in goto/error paths) > + > + mutex_lock(&dev->struct_mutex); > + > + /* > + * get offset of memory allocated for drm framebuffer. > + * - this callback would be called by user application > + * with DRM_IOCTL_MODE_MAP_DUMB command. > + */ Just delete this comment that was copied from exynos. > + > + obj = drm_gem_object_lookup(dev, file_priv, handle); > + if (!obj) { > + DRM_ERROR("failed to lookup gem object.\n"); > + ret = -EINVAL; > + goto unlock; > + } > + > + ret = drm_gem_create_mmap_offset(obj); > + if (ret) > + goto out; > + > + *offset = drm_vma_node_offset_addr(&obj->vma_node); > + DRM_DEBUG_KMS("offset = 0x%lx\n", (unsigned long)*offset); Nit: print all 64 bits of offset > + > +out: > + drm_gem_object_unreference(obj); > +unlock: > + mutex_unlock(&dev->struct_mutex); > + return ret; > +} > + > +/* > + * rockchip_gem_dumb_create - (struct drm_driver)->dumb_create callback > + * function > + * > + * This aligns the pitch and size arguments to the minimum required. wrap > + * this into your own function if you need bigger alignment. > + */ > +int rockchip_gem_dumb_create(struct drm_file *file_priv, > + struct drm_device *dev, > + struct drm_mode_create_dumb *args) > +{ > + struct rockchip_gem_object *rk_obj; > + int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); > + > + /* > + * align to 64 bytes since Mali requires it. > + */ > + min_pitch = ((min_pitch + 63) / 64) * 64; ALIGN(min_pitch, 64); > + > + if (args->pitch < min_pitch) > + args->pitch = min_pitch; > + > + if (args->size < args->pitch * args->height) > + args->size = args->pitch * args->height; > + > + rk_obj = rockchip_gem_create_with_handle(file_priv, dev, args->size, > + &args->handle); > + > + return PTR_ERR_OR_ZERO(rk_obj); > +} > + > +/* > + * Allocate a sg_table for this GEM object. > + * Note: Both the table's contents, and the sg_table itself must be freed by > + * the caller. > + * Returns a pointer to the newly allocated sg_table, or an ERR_PTR() error. > + */ > +struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj) > +{ > + struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); > + struct drm_device *drm = obj->dev; > + struct sg_table *sgt = NULL; Do not init to NULL > + int ret; > + > + sgt = kzalloc(sizeof(*sgt), GFP_KERNEL); > + if (!sgt) > + return ERR_PTR(-ENOMEM); > + > + ret = dma_get_sgtable_attrs(drm->dev, sgt, rk_obj->kvaddr, > + rk_obj->dma_addr, obj->size, > + &rk_obj->dma_attrs); > + if (ret) { > + DRM_ERROR("failed to allocate sgt, %d\n", ret); > + kfree(sgt); > + return ERR_PTR(ret); > + } > + > + return sgt; > +} > + > +void *rockchip_gem_prime_vmap(struct drm_gem_object *obj) > +{ > + struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); > + > + return rk_obj->kvaddr; > +} > + > +void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) > +{ > + /* Nothing to do */ > +} > + > +int rockchip_gem_prime_mmap(struct drm_gem_object *obj, > + struct vm_area_struct *vma) I don't think this function is correct. I think we should use dma_mmap_attrs()? But, you can probably just remove it, and drop support for mmap'ing exported dma_bufs for now. > +{ > + struct drm_device *dev = obj->dev; > + int ret; > + > + mutex_lock(&dev->struct_mutex); > + ret = drm_gem_mmap_obj(obj, obj->size, vma); > + mutex_unlock(&dev->struct_mutex); > + > + return ret; > +} > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h > new file mode 100644 > index 0000000..e37b921 > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h > @@ -0,0 +1,55 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#ifndef _ROCKCHIP_DRM_GEM_H > +#define _ROCKCHIP_DRM_GEM_H > + > +#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base) > + > +struct rockchip_gem_object { > + struct drm_gem_object base; > + unsigned int flags; > + > + void *kvaddr; > + dma_addr_t dma_addr; > + struct dma_attrs dma_attrs; > +}; > + > +struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj); > +struct drm_gem_object * > +rockchip_gem_prime_import_sg_table(struct drm_device *dev, size_t size, > + struct sg_table *sgt); > +void *rockchip_gem_prime_vmap(struct drm_gem_object *obj); > +void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); > +int rockchip_gem_prime_mmap(struct drm_gem_object *obj, > + struct vm_area_struct *vma); > + > +/* drm driver mmap file operations */ > +int rockchip_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); > + > +/* mmap a gem object to userspace. */ > +int rockchip_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); > + > +struct rockchip_gem_object * > + rockchip_gem_create_object(struct drm_device *drm, unsigned int size); > + > +void rockchip_gem_free_object(struct drm_gem_object *obj); > + > +int rockchip_gem_dumb_create(struct drm_file *file_priv, > + struct drm_device *dev, > + struct drm_mode_create_dumb *args); > +int rockchip_gem_dumb_map_offset(struct drm_file *file_priv, > + struct drm_device *dev, uint32_t handle, > + uint64_t *offset); > +#endif /* _ROCKCHIP_DRM_GEM_H */ > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > new file mode 100644 > index 0000000..fe9d2b0 > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > @@ -0,0 +1,1422 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#include <drm/drm.h> > +#include <drm/drmP.h> > +#include <drm/drm_crtc.h> > +#include <drm/drm_crtc_helper.h> > + > +#include <linux/kernel.h> > +#include <linux/platform_device.h> > +#include <linux/clk.h> > +#include <linux/of.h> > +#include <linux/of_device.h> > +#include <linux/pm_runtime.h> > +#include <linux/component.h> > + > +#include <linux/reset.h> > +#include <linux/iommu.h> > +#include <linux/delay.h> > + > +#include <video/of_display_timing.h> > +#include <video/of_videomode.h> > + > +#include "rockchip_drm_drv.h" > +#include "rockchip_drm_fbdev.h" > +#include "rockchip_drm_gem.h" > +#include "rockchip_drm_fb.h" > +#include "rockchip_drm_vop.h" > + > +#define VOP_DEFAULT_FRAMERATE 60 > +#define VOP_MAX_WIN_SUPPORT 5 > +#define VOP_DEFAULT_PRIMARY 0 > +#define VOP_DEFAULT_CURSOR 1 > +#define VOP_REG(off, _mask, s) \ > + {.offset = off, \ > + .mask = _mask, \ > + .shift = s,} > + > +#define __REG_SET(x, off, mask, shift, v) \ > + vop_mask_write(x, off, (mask) << shift, (v) << shift) > + > +#define REG_SET(x, base, reg, v) \ > + __REG_SET(x, base + reg.offset, reg.mask, reg.shift, v) > + > +#define VOP_WIN_SET(x, win, name, v) \ > + REG_SET(x, win->base, win->phy->name, v) > +#define VOP_CTRL_SET(x, name, v) \ > + REG_SET(x, 0, (x)->data->ctrl->name, v) > + > +#define VOP_WIN_GET_YRGBADDR(ctx, win) \ > + vop_readl(ctx, win->base + win->phy->yrgb_mst.offset) > + > +#define to_vop_ctx(x) container_of(x, struct vop_context, crtc) > +#define to_rockchip_plane(x) container_of(x, struct rockchip_plane, base) > + > +struct rockchip_plane { > + int id; > + struct drm_plane base; > + const struct vop_win *win; > + > + uint32_t pending_yrgb_mst; > + struct drm_framebuffer *front_fb; > + struct drm_framebuffer *pending_fb; > + bool enabled; > +}; > + > +struct vop_context { > + struct device *dev; > + struct drm_device *drm_dev; > + struct drm_crtc crtc; > + struct drm_pending_vblank_event *event; > + struct vop_driver *drv; > + unsigned int dpms; > + unsigned int win_mask; > + wait_queue_head_t wait_vsync_queue; > + atomic_t wait_vsync_event; > + > + struct workqueue_struct *vsync_wq; > + struct work_struct vsync_work; > + > + /* mutex vsync_ work */ > + struct mutex vsync_mutex; > + bool vsync_work_pending; > + > + struct vop_driver_data *data; > + > + uint32_t *regsbak; > + void __iomem *regs; > + > + /* physical map length of vop register */ > + uint32_t len; > + > + /* one time only one process allowed to config the register */ > + spinlock_t reg_lock; > + /* lock vop irq reg */ > + spinlock_t irq_lock; > + > + unsigned int irq; > + > + /* vop AHP clk */ > + struct clk *hclk; > + /* vop dclk */ > + struct clk *dclk; > + /* vop share memory frequency */ > + struct clk *aclk; > + > + /* vop ahb reset */ > + struct reset_control *ahb_rst; > + /* vop dclk reset */ > + struct reset_control *dclk_rst; > + uint32_t pixclock; Where is pixclock used? > + > + int pipe; > + bool clk_on; > +}; > + > +enum vop_data_format { > + VOP_FMT_ARGB8888 = 0, > + VOP_FMT_RGB888, > + VOP_FMT_RGB565, > + VOP_FMT_YUV420SP = 4, > + VOP_FMT_YUV422SP, > + VOP_FMT_YUV444SP, > +}; > + > +struct vop_reg_data { > + uint32_t offset; > + uint32_t value; > +}; > + > +struct vop_reg { > + uint32_t offset; > + uint32_t shift; > + uint32_t mask; > +}; > + > +struct vop_ctrl { > + struct vop_reg standby; > + struct vop_reg data_blank; > + struct vop_reg gate_en; > + struct vop_reg mmu_en; > + struct vop_reg rgb_en; > + struct vop_reg edp_en; > + struct vop_reg hdmi_en; > + struct vop_reg mipi_en; > + struct vop_reg out_mode; > + struct vop_reg dither_down; > + struct vop_reg dither_up; > + struct vop_reg pin_pol; > + > + struct vop_reg htotal_pw; > + struct vop_reg hact_st_end; > + struct vop_reg vtotal_pw; > + struct vop_reg vact_st_end; > + struct vop_reg hpost_st_end; > + struct vop_reg vpost_st_end; > +}; > + > +struct vop_win_phy { > + const uint32_t *data_formats; > + uint32_t nformats; > + > + struct vop_reg enable; > + struct vop_reg format; > + struct vop_reg act_info; > + struct vop_reg dsp_info; > + struct vop_reg dsp_st; > + struct vop_reg yrgb_mst; > + struct vop_reg uv_mst; > + struct vop_reg yrgb_vir; > + struct vop_reg uv_vir; > + > + struct vop_reg dst_alpha_ctl; > + struct vop_reg src_alpha_ctl; > +}; > + > +struct vop_win { > + uint32_t base; > + const struct vop_win_phy *phy; > +}; > + > +struct vop_driver_data { > + const void *init_table; > + int table_size; > + const struct vop_ctrl *ctrl; > + const struct vop_win *win[VOP_MAX_WIN_SUPPORT]; > +}; > + > +static const uint32_t formats_01[] = { > + DRM_FORMAT_XRGB8888, > + DRM_FORMAT_ARGB8888, > + DRM_FORMAT_RGB888, > + DRM_FORMAT_RGB565, > + DRM_FORMAT_NV12, > + DRM_FORMAT_NV16, > + DRM_FORMAT_NV24, > +}; > + > +static const uint32_t formats_234[] = { > + DRM_FORMAT_XRGB8888, > + DRM_FORMAT_ARGB8888, > + DRM_FORMAT_RGB888, > + DRM_FORMAT_RGB565, > +}; > + > +static const struct vop_win_phy win01_data = { > + .data_formats = formats_01, > + .nformats = ARRAY_SIZE(formats_01), > + .enable = VOP_REG(WIN0_CTRL0, 0x1, 0), > + .format = VOP_REG(WIN0_CTRL0, 0x7, 1), > + .act_info = VOP_REG(WIN0_ACT_INFO, 0x1fff1fff, 0), > + .dsp_info = VOP_REG(WIN0_DSP_INFO, 0x1fff1fff, 0), > + .dsp_st = VOP_REG(WIN0_DSP_ST, 0x1fff1fff, 0), > + .yrgb_mst = VOP_REG(WIN0_YRGB_MST, 0xffffffff, 0), > + .uv_mst = VOP_REG(WIN0_CBR_MST, 0xffffffff, 0), > + .yrgb_vir = VOP_REG(WIN0_VIR, 0x3fff, 0), > + .uv_vir = VOP_REG(WIN0_VIR, 0x3fff, 16), > + .src_alpha_ctl = VOP_REG(WIN0_SRC_ALPHA_CTRL, 0xff, 0), > + .dst_alpha_ctl = VOP_REG(WIN0_DST_ALPHA_CTRL, 0xff, 0), > +}; > + > +static const struct vop_win_phy win23_data = { > + .data_formats = formats_234, > + .nformats = ARRAY_SIZE(formats_234), > + .enable = VOP_REG(WIN2_CTRL0, 0x1, 0), > + .format = VOP_REG(WIN2_CTRL0, 0x7, 1), > + .dsp_info = VOP_REG(WIN2_DSP_INFO0, 0x0fff0fff, 0), > + .dsp_st = VOP_REG(WIN2_DSP_ST0, 0x1fff1fff, 0), > + .yrgb_mst = VOP_REG(WIN2_MST0, 0xffffffff, 0), > + .yrgb_vir = VOP_REG(WIN2_VIR0_1, 0x1fff, 0), > + .src_alpha_ctl = VOP_REG(WIN2_SRC_ALPHA_CTRL, 0xff, 0), > + .dst_alpha_ctl = VOP_REG(WIN2_DST_ALPHA_CTRL, 0xff, 0), > +}; > + > +static const struct vop_win_phy cursor_data = { > + .data_formats = formats_234, > + .nformats = ARRAY_SIZE(formats_234), > + .enable = VOP_REG(HWC_CTRL0, 0x1, 0), > + .format = VOP_REG(HWC_CTRL0, 0x7, 1), > + .dsp_st = VOP_REG(HWC_DSP_ST, 0x1fff1fff, 0), > + .yrgb_mst = VOP_REG(HWC_MST, 0xffffffff, 0), > +}; > + > +static const struct vop_win win0 = { > + .base = 0, > + .phy = &win01_data, > +}; > + > +static const struct vop_win win1 = { > + .base = 0x40, > + .phy = &win01_data, > +}; > + > +static const struct vop_win win2 = { > + .base = 0, > + .phy = &win23_data, > +}; > + > +static const struct vop_win win3 = { > + .base = 0x50, > + .phy = &win23_data, > +}; > + > +static const struct vop_win win_cursor = { > + .base = 0, > + .phy = &cursor_data, > +}; > + > +static const struct vop_ctrl ctrl_data = { > + .standby = VOP_REG(SYS_CTRL, 0x1, 22), > + .gate_en = VOP_REG(SYS_CTRL, 0x1, 23), > + .mmu_en = VOP_REG(SYS_CTRL, 0x1, 20), > + .rgb_en = VOP_REG(SYS_CTRL, 0x1, 12), > + .hdmi_en = VOP_REG(SYS_CTRL, 0x1, 13), > + .edp_en = VOP_REG(SYS_CTRL, 0x1, 14), > + .mipi_en = VOP_REG(SYS_CTRL, 0x1, 15), > + .dither_down = VOP_REG(DSP_CTRL1, 0xf, 1), > + .dither_up = VOP_REG(DSP_CTRL1, 0x1, 6), > + .data_blank = VOP_REG(DSP_CTRL0, 0x1, 19), > + .out_mode = VOP_REG(DSP_CTRL0, 0xf, 0), > + .pin_pol = VOP_REG(DSP_CTRL0, 0xf, 4), > + .htotal_pw = VOP_REG(DSP_HTOTAL_HS_END, 0x1fff1fff, 0), > + .hact_st_end = VOP_REG(DSP_HACT_ST_END, 0x1fff1fff, 0), > + .vtotal_pw = VOP_REG(DSP_VTOTAL_VS_END, 0x1fff1fff, 0), > + .vact_st_end = VOP_REG(DSP_VACT_ST_END, 0x1fff1fff, 0), > + .hpost_st_end = VOP_REG(POST_DSP_HACT_INFO, 0x1fff1fff, 0), > + .vpost_st_end = VOP_REG(POST_DSP_VACT_INFO, 0x1fff1fff, 0), > +}; > + > +static const struct vop_reg_data vop_init_reg_table[] = { > + {SYS_CTRL, 0x00801000}, > + {DSP_CTRL0, 0x00000000}, > + {WIN0_CTRL0, 0x00000080}, > + {WIN1_CTRL0, 0x00000080}, > +}; > + > +static const struct vop_driver_data rockchip_rk3288_vop = { > + .init_table = vop_init_reg_table, > + .table_size = ARRAY_SIZE(vop_init_reg_table), > + .ctrl = &ctrl_data, > + .win[0] = &win0, > + .win[1] = &win1, > + .win[2] = &win2, > + .win[3] = &win3, > + .win[4] = &win_cursor, > +}; > + > +static const struct of_device_id vop_driver_dt_match[] = { > + { .compatible = "rockchip,rk3288-vop", > + .data = (void *)&rockchip_rk3288_vop }, > + {}, > +}; > + > +static inline void vop_writel(struct vop_context *ctx, > + uint32_t offset, uint32_t v) > +{ > + writel(v, ctx->regs + offset); TODO: I *think* the following may be a useful optimization: When doing mode_set or update_plane, use writel_relaxed to write all of the shadowed mode/window configuration registers, and just use writel() to write vop_cfg_done. This will write all the configuration registers without barriers, but still ensure that all such registers are written before cfg_done. However, for most other register writes, you probably do want to always use writel(). > + ctx->regsbak[offset >> 2] = v; > +} > + > +static inline uint32_t vop_readl(struct vop_context *ctx, uint32_t offset) > +{ > + return readl(ctx->regs + offset); > +} > + > +static inline void vop_cfg_done(struct vop_context *ctx) > +{ > + writel(0x01, ctx->regs + REG_CFG_DONE); > +} > + > +static inline void vop_mask_write(struct vop_context *ctx, > + uint32_t offset, uint32_t mask, uint32_t v) > +{ > + if (mask) { > + uint32_t cached_val = ctx->regsbak[offset >> 2]; > + > + cached_val = (cached_val & ~mask) | v; > + writel(cached_val, ctx->regs + offset); > + ctx->regsbak[offset >> 2] = cached_val; > + } > +} > + > +static inline struct vop_driver_data *vop_get_driver_data(struct device *dev) > +{ > + const struct of_device_id *of_id = > + of_match_device(vop_driver_dt_match, dev); > + > + return (struct vop_driver_data *)of_id->data; > +} > + > +static enum vop_data_format vop_convert_format(uint32_t format) > +{ > + switch (format) { > + case DRM_FORMAT_XRGB8888: > + case DRM_FORMAT_ARGB8888: > + return VOP_FMT_ARGB8888; > + case DRM_FORMAT_RGB888: > + return VOP_FMT_RGB888; > + case DRM_FORMAT_RGB565: > + return VOP_FMT_RGB565; > + case DRM_FORMAT_NV12: > + return VOP_FMT_YUV420SP; > + case DRM_FORMAT_NV16: > + return VOP_FMT_YUV422SP; > + case DRM_FORMAT_NV24: > + return VOP_FMT_YUV444SP; > + default: > + DRM_ERROR("unsupport format[%08x]\n", format); > + return -EINVAL; > + } > +} > + > +static bool is_alpha_support(uint32_t format) > +{ > + switch (format) { > + case DRM_FORMAT_ARGB8888: > + return true; > + default: > + return false; > + } > +} > + > +/* TODO(djkurtz): move generic 'setup slave rk_iommu' code somewhere common */ > +static int vop_iommu_init(struct vop_context *ctx) > +{ > + struct device *dev = ctx->dev; > + struct device_node *np = dev->of_node; > + struct platform_device *pd; > + int count; > + int ret; > + struct of_phandle_args args; > + > + /* Each VOP must have exactly one iommu node, with no args */ > + count = of_count_phandle_with_args(np, "iommus", "#iommu-cells"); > + if (count != 1) { > + dev_err(dev, "of_count_phandle_with_args(%s) => %d\n", > + np->full_name, count); > + return -EINVAL; > + } > + > + ret = of_parse_phandle_with_args(np, "iommus", "#iommu-cells", 0, > + &args); > + if (ret) { > + dev_err(dev, "of_parse_phandle_with_args(%s) => %d\n", > + np->full_name, ret); > + return ret; > + } > + if (args.args_count != 0) { > + dev_err(dev, "incorrect number of iommu params found for %s (found %d, expected 0)\n", > + args.np->full_name, args.args_count); > + return -EINVAL; > + } > + > + pd = of_find_device_by_node(args.np); > + of_node_put(args.np); > + if (!pd) { > + dev_err(dev, "iommu %s not found\n", args.np->full_name); > + return -EPROBE_DEFER; > + } > + > + /* TODO(djkurtz): handle multiple slave iommus for a single master */ > + dev->archdata.iommu = &pd->dev; > + > + ret = rockchip_drm_dma_attach_device(ctx->drm_dev, dev); > + if (ret) { > + dev_err(dev, "failed to attach to drm dma mapping, %d\n", ret); > + return ret; > + } > + > + return 0; > +} > + > +static void vop_iommu_fini(struct vop_context *ctx) > +{ > + rockchip_drm_dma_detach_device(ctx->drm_dev, ctx->dev); > +} > + > +static int vop_clk_enable(struct vop_context *ctx) > +{ > + int ret; if (ctx->clk_on) return 0; > + > + if (!ctx->clk_on) { > + ret = clk_enable(ctx->hclk); > + if (ret < 0) { > + dev_err(ctx->dev, "failed to enable hclk\n"); I find it nice to print the errno, to: dev_err(ctx->dev, "failed to enable hclk, %d\n", ret); > + return ret; > + } > + > + ret = clk_enable(ctx->dclk); > + if (ret < 0) { > + dev_err(ctx->dev, "failed to enable dclk\n"); > + goto err_dclk; goto err_disable_hclk; > + } > + > + ret = clk_enable(ctx->aclk); > + if (ret < 0) { > + dev_err(ctx->dev, "failed to enable aclk\n"); > + goto err_aclk;; goto err_disable_dclk; > + } > + ctx->clk_on = true; > + } > + > + return ret; Hm, didn't the compiler complain about ret possibly being returned undefined here? > +err_aclk: > + clk_disable(ctx->aclk); > +err_dclk: > + clk_disable(ctx->dclk); err_disable_dclk: clk_disable(ctx->dclk); err_disable_hclk: clk_disable(ctx->hclk); > + return ret; > +} > + > +static void vop_clk_disable(struct vop_context *ctx) > +{ if (ctx->clk_on) return; > + if (ctx->clk_on) { > + clk_disable(ctx->aclk); > + clk_disable(ctx->dclk); > + clk_disable(ctx->hclk); > + ctx->clk_on = false; > + } > +} > + > +static void vop_power_on(struct vop_context *ctx) > +{ > + if (vop_clk_enable(ctx) < 0) { > + dev_err(ctx->dev, "failed to enable clks\n"); > + return; > + } > + > + spin_lock(&ctx->reg_lock); > + > + VOP_CTRL_SET(ctx, standby, 0); > + > + spin_unlock(&ctx->reg_lock); > +} > + > +static void vop_power_off(struct vop_context *ctx) > +{ > + spin_lock(&ctx->reg_lock); > + > + VOP_CTRL_SET(ctx, standby, 1); > + > + spin_unlock(&ctx->reg_lock); > + > + vop_clk_disable(ctx); > +} > + > +/* > + * @start: starting pixel in screen coordinates > + * @length: length of buffer "row" in pixels > + * @end: one pixel past end of buffer in screen coordinates > + * @last: width of screen, or one pixel past end of screen > + * @size: number of pixels of buffer to display on scree > + */ > +static int rockchip_plane_get_size(int start, unsigned length, unsigned last) > +{ > + int end = start + length; > + int size = 0; > + > + if (start <= 0) { > + if (end > 0) > + size = min_t(unsigned, end, last); > + } else if (start < last) { > + size = min_t(unsigned, last - start, length); > + } > + > + return size; > +} > + > +static int rockchip_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, > + struct drm_framebuffer *fb, int crtc_x, > + int crtc_y, unsigned int crtc_w, > + unsigned int crtc_h, uint32_t src_x, > + uint32_t src_y, uint32_t src_w, uint32_t src_h) > +{ > + struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane); > + const struct vop_win *win = rockchip_plane->win; > + struct vop_context *ctx = to_vop_ctx(crtc); > + struct drm_gem_object *obj; > + struct rockchip_gem_object *rk_obj; > + unsigned long offset; > + unsigned int actual_w; > + unsigned int actual_h; > + unsigned int dsp_stx; > + unsigned int dsp_sty; > + unsigned int y_vir_stride; > + dma_addr_t yrgb_mst; > + enum vop_data_format format; > + uint32_t val; > + bool is_alpha; > + > + src_w >>= 16; > + src_h >>= 16; > + src_x >>= 16; > + src_y >>= 16; > + > + if (crtc_w != src_w || crtc_h != src_h) > + return -EINVAL; Can we use drm_plane_helper_check_update() here instead of doing our own checks? > + > + actual_w = rockchip_plane_get_size(crtc_x, > + crtc_w, crtc->mode.hdisplay); > + actual_h = rockchip_plane_get_size(crtc_y, > + crtc_h, crtc->mode.vdisplay); > + if (!actual_w || !actual_h) > + return -EINVAL; > + > + if (crtc_x < 0) { > + if (actual_w) > + src_x -= crtc_x; > + crtc_x = 0; > + } > + > + if (crtc_y < 0) { > + if (actual_h) > + src_y -= crtc_y; > + crtc_y = 0; > + } > + > + is_alpha = is_alpha_support(fb->pixel_format); > + format = vop_convert_format(fb->pixel_format); > + if (format < 0) > + return format; > + > + obj = rockchip_fb_get_gem_obj(fb, 0); > + if (!obj) { > + DRM_ERROR("fail to get rockchip gem object from framebuffer\n"); > + return -EINVAL; > + } > + > + rk_obj = to_rockchip_obj(obj); > + > + yrgb_mst = rk_obj->dma_addr; > + > + dsp_stx = crtc_x + crtc->mode.htotal - crtc->mode.hsync_start; > + dsp_sty = crtc_y + crtc->mode.vtotal - crtc->mode.vsync_start; > + > + offset = src_x * (fb->bits_per_pixel >> 3); > + offset += src_y * fb->pitches[0]; > + > + y_vir_stride = fb->pitches[0] / (fb->bits_per_pixel >> 3); > + > + spin_lock(&ctx->reg_lock); > + > + VOP_WIN_SET(ctx, win, format, format); > + VOP_WIN_SET(ctx, win, yrgb_vir, y_vir_stride); > + yrgb_mst += offset; > + VOP_WIN_SET(ctx, win, yrgb_mst, yrgb_mst); > + val = ((actual_h - 1) & 0xffff) << 16; > + val |= (actual_w - 1) & 0xffff; > + VOP_WIN_SET(ctx, win, act_info, val); > + VOP_WIN_SET(ctx, win, dsp_info, val); > + val = ((dsp_sty - 1) & 0xffff) << 16; > + val |= (dsp_stx - 1) & 0xffff; > + VOP_WIN_SET(ctx, win, dsp_st, val); > + It looks a bit funny to me, but according to the TRM I am looking at: act mask is 0x1fff dsp_info is 0x0fff dsp_st is 0x1fff But these would be better as macros: #define ACT_INFO_VAL(x) ((x - 1) & 0x1fff) #define DSP_INFO_VAL(x) ((x - 1) & 0x0fff) #define DSP_ST_VAL(x) ((x - 1) & 0x1fff) #define ACT_INFO(w, h) ((ACT_INFO_VAL(h) << 16) | (ACT_INFO_VAL(w)) #define DSP_INFO(w, h) ((DSP_INFO_VAL(h) << 16) | (DSP_INFO_VAL(w)) #define DSP_INFO(x, y) ((DSP_ST_VAL(y) << 16) | (DSP_ST_VAL(x)) > + if (is_alpha) { > + VOP_WIN_SET(ctx, win, dst_alpha_ctl, > + DST_FACTOR_M0(ALPHA_SRC_INVERSE)); > + val = SRC_ALPHA_EN(1) | SRC_COLOR_M0(ALPHA_SRC_PRE_MUL) | > + SRC_ALPHA_M0(ALPHA_STRAIGHT) | > + SRC_BLEND_M0(ALPHA_PER_PIX) | > + SRC_ALPHA_CAL_M0(ALPHA_NO_SATURATION) | > + SRC_FACTOR_M0(ALPHA_ONE); > + VOP_WIN_SET(ctx, win, src_alpha_ctl, val); > + } else { > + VOP_WIN_SET(ctx, win, src_alpha_ctl, SRC_ALPHA_EN(0)); > + } > + > + VOP_WIN_SET(ctx, win, enable, 1); > + > + spin_unlock(&ctx->reg_lock); > + > + mutex_lock(&ctx->vsync_mutex); > + > + /* > + * Because the buffer set to vop take effect at frame start time, > + * we need make sure old buffer is not in use before we release > + * it. > + * reference the framebuffer, and unference it when it swap out of vop. > + */ > + if (fb != rockchip_plane->front_fb) { > + drm_framebuffer_reference(fb); > + if (rockchip_plane->pending_fb) > + drm_framebuffer_unreference(rockchip_plane->pending_fb); > + rockchip_plane->pending_fb = fb; > + rockchip_plane->pending_yrgb_mst = yrgb_mst; > + ctx->vsync_work_pending = true; > + } > + rockchip_plane->enabled = true; > + > + mutex_unlock(&ctx->vsync_mutex); > + > + spin_lock(&ctx->reg_lock); > + vop_cfg_done(ctx); > + spin_unlock(&ctx->reg_lock); > + > + return 0; > +} > + > +#define rockchip_update_plane_helper(plane, crtc, fb, x, y) \ > + rockchip_update_plane(plane, crtc, fb, 0, 0, \ > + (fb)->width, (fb)->height, \ > + (x) << 16, (y) << 16, \ > + (fb)->width << 16, (fb)->height << 16) (1) No. This is using the framebuffer size. We should be using the crtc's mode's dimensions to display the primary plane. (2) Also, please make this an inline function named rockchip_update_primary_plane() > + > +static int rockchip_disable_plane(struct drm_plane *plane) > +{ > + struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane); > + const struct vop_win *win = rockchip_plane->win; > + struct vop_context *ctx; > + > + if (!plane->crtc) > + return 0; > + > + ctx = to_vop_ctx(plane->crtc); > + spin_lock(&ctx->reg_lock); > + > + VOP_WIN_SET(ctx, win, enable, 0); > + vop_cfg_done(ctx); > + > + spin_unlock(&ctx->reg_lock); > + > + mutex_lock(&ctx->vsync_mutex); > + > + /* > + * clear the pending framebuffer and set vsync_work_pending true, > + * so that the framebuffer will unref at the next vblank. > + */ > + if (rockchip_plane->pending_fb) { > + drm_framebuffer_unreference(rockchip_plane->pending_fb); > + rockchip_plane->pending_fb = NULL; > + } > + > + rockchip_plane->enabled = false; > + ctx->vsync_work_pending = true; > + > + mutex_unlock(&ctx->vsync_mutex); > + > + return 0; > +} > + > +static void rockchip_plane_destroy(struct drm_plane *plane) > +{ > + struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane); > + struct vop_context *ctx = to_vop_ctx(plane->crtc); > + > + rockchip_disable_plane(plane); > + drm_plane_cleanup(plane); > + ctx->win_mask &= ~(1 << rockchip_plane->id); > + kfree(rockchip_plane); > +} > + > +static const struct drm_plane_funcs rockchip_plane_funcs = { > + .update_plane = rockchip_update_plane, > + .disable_plane = rockchip_disable_plane, > + .destroy = rockchip_plane_destroy, > +}; > + > +static struct drm_plane *rockchip_plane_init(struct vop_context *ctx, > + unsigned long possible_crtcs, > + enum drm_plane_type type, > + int index) > +{ > + struct rockchip_plane *rockchip_plane; > + struct vop_driver_data *vop_data = ctx->data; > + const struct vop_win *win; > + int err; > + > + if (index >= VOP_MAX_WIN_SUPPORT) > + return ERR_PTR(-EINVAL); > + > + rockchip_plane = kzalloc(sizeof(*rockchip_plane), GFP_KERNEL); > + if (!rockchip_plane) > + return ERR_PTR(-ENOMEM); > + > + win = vop_data->win[index]; > + ctx->win_mask |= (1 << index); > + rockchip_plane->id = index; > + rockchip_plane->win = win; > + > + err = drm_universal_plane_init(ctx->drm_dev, &rockchip_plane->base, > + possible_crtcs, &rockchip_plane_funcs, > + win->phy->data_formats, > + win->phy->nformats, type); > + if (err) { > + DRM_ERROR("failed to initialize plane\n"); > + kfree(rockchip_plane); > + return ERR_PTR(err); > + } > + > + return &rockchip_plane->base; > +} > + > +int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type) > +{ > + struct vop_context *ctx = to_vop_ctx(crtc); > + > + if (ctx->dpms != DRM_MODE_DPMS_ON) > + return -EPERM; > + > + switch (connector_type) { > + case DRM_MODE_CONNECTOR_LVDS: > + VOP_CTRL_SET(ctx, rgb_en, 1); > + VOP_CTRL_SET(ctx, out_mode, ROCKCHIP_OUT_MODE_P888); > + break; > + case DRM_MODE_CONNECTOR_eDP: > + VOP_CTRL_SET(ctx, edp_en, 1); > + VOP_CTRL_SET(ctx, out_mode, ROCKCHIP_OUT_MODE_AAAA); > + break; > + case DRM_MODE_CONNECTOR_HDMIA: > + VOP_CTRL_SET(ctx, out_mode, ROCKCHIP_OUT_MODE_AAAA); > + VOP_CTRL_SET(ctx, hdmi_en, 1); > + break; > + default: > + DRM_ERROR("unsupport connector_type[%d]\n", connector_type); > + return -EINVAL; > + }; > + > + return 0; > +} > + > +int rockchip_drm_crtc_enable_vblank(struct drm_device *dev, int pipe) > +{ > + struct vop_context *ctx = to_vop_ctx(rockchip_drm_find_crtc(dev, pipe)); > + unsigned long flags; > + > + if (ctx->dpms != DRM_MODE_DPMS_ON) > + return -EPERM; > + > + spin_lock_irqsave(&ctx->irq_lock, flags); > + > + vop_mask_write(ctx, INTR_CTRL0, LINE_FLAG_INTR_MASK, > + LINE_FLAG_INTR_EN(1)); > + > + spin_unlock_irqrestore(&ctx->irq_lock, flags); > + > + return 0; > +} > + > +void rockchip_drm_crtc_disable_vblank(struct drm_device *dev, int pipe) > +{ > + struct vop_context *ctx = to_vop_ctx(rockchip_drm_find_crtc(dev, pipe)); > + unsigned long flags; > + > + if (ctx->dpms != DRM_MODE_DPMS_ON) > + return; > + spin_lock_irqsave(&ctx->irq_lock, flags); > + vop_mask_write(ctx, INTR_CTRL0, LINE_FLAG_INTR_MASK, > + LINE_FLAG_INTR_EN(0)); > + spin_unlock_irqrestore(&ctx->irq_lock, flags); > +} > + > +static void rockchip_drm_crtc_dpms(struct drm_crtc *crtc, int mode) > +{ > + struct vop_context *ctx = to_vop_ctx(crtc); > + > + DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode); > + > + if (ctx->dpms == mode) { > + DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n"); > + return; > + } > + if (mode > DRM_MODE_DPMS_ON) { > + /* wait for the completion of page flip. */ > + if (!wait_event_timeout(ctx->wait_vsync_queue, > + !atomic_read(&ctx->wait_vsync_event), > + HZ/20)) > + DRM_DEBUG_KMS("vblank wait timed out.\n"); > + drm_vblank_off(crtc->dev, ctx->pipe); > + } > + > + switch (mode) { > + case DRM_MODE_DPMS_ON: > + vop_power_on(ctx); > + break; > + case DRM_MODE_DPMS_STANDBY: > + case DRM_MODE_DPMS_SUSPEND: > + case DRM_MODE_DPMS_OFF: > + vop_power_off(ctx); > + break; > + default: > + DRM_DEBUG_KMS("unspecified mode %d\n", mode); > + break; > + } > + > + ctx->dpms = mode; > +} > + > +static void rockchip_drm_crtc_prepare(struct drm_crtc *crtc) > +{ > + rockchip_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON); > +} > + > +static bool rockchip_drm_crtc_mode_fixup(struct drm_crtc *crtc, > + const struct drm_display_mode *mode, > + struct drm_display_mode *adjusted_mode) > +{ > + if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0) > + return false; > + > + return true; > +} > + > +static int rockchip_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, > + struct drm_framebuffer *old_fb); > + > +static int rockchip_drm_crtc_mode_set(struct drm_crtc *crtc, > + struct drm_display_mode *mode, > + struct drm_display_mode *adjusted_mode, > + int x, int y, > + struct drm_framebuffer *fb) > +{ > + struct vop_context *ctx = to_vop_ctx(crtc); > + u16 hsync_len = adjusted_mode->hsync_end - adjusted_mode->hsync_start; > + u16 hdisplay = adjusted_mode->hdisplay; > + u16 htotal = adjusted_mode->htotal; > + u16 hact_st = adjusted_mode->htotal - adjusted_mode->hsync_start; > + u16 hact_end = hact_st + hdisplay; > + u16 vdisplay = adjusted_mode->vdisplay; > + u16 vtotal = adjusted_mode->vtotal; > + u16 vsync_len = adjusted_mode->vsync_end - adjusted_mode->vsync_start; > + u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start; > + u16 vact_end = vact_st + vdisplay; > + unsigned long flags; > + int ret; > + uint32_t val; > + > + clk_disable(ctx->dclk); > + > + ret = rockchip_drm_crtc_mode_set_base(crtc, x, y, fb); > + if (ret) > + return ret; > + > + val = 0x8; > + val |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 1 : 0; > + val |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? (1 << 1) : 0; > + VOP_CTRL_SET(ctx, pin_pol, val); > + > + VOP_CTRL_SET(ctx, htotal_pw, (htotal << 16) | hsync_len); > + val = hact_st << 16; > + val |= hact_end; > + VOP_CTRL_SET(ctx, hact_st_end, val); > + VOP_CTRL_SET(ctx, hpost_st_end, val); > + > + VOP_CTRL_SET(ctx, vtotal_pw, (vtotal << 16) | vsync_len); > + val = vact_st << 16; > + val |= vact_end; > + VOP_CTRL_SET(ctx, vact_st_end, val); > + VOP_CTRL_SET(ctx, vpost_st_end, val); > + > + spin_lock_irqsave(&ctx->irq_lock, flags); > + > + vop_mask_write(ctx, INTR_CTRL0, DSP_LINE_NUM_MASK, > + DSP_LINE_NUM(vact_end)); > + > + spin_unlock_irqrestore(&ctx->irq_lock, flags); > + > + /* > + * do dclk_reset, let all config take affect, so new clk will safely > + * run in correct frame. > + */ > + reset_control_assert(ctx->dclk_rst); > + usleep_range(10, 20); > + reset_control_deassert(ctx->dclk_rst); > + > + clk_set_rate(ctx->dclk, adjusted_mode->clock * 1000); > + clk_enable(ctx->dclk); > + > + return 0; > +} > + > +static int rockchip_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, > + struct drm_framebuffer *old_fb) > +{ > + int ret; > + > + ret = rockchip_update_plane_helper(crtc->primary, crtc, > + crtc->primary->fb, x, y); > + if (ret < 0) { > + DRM_ERROR("fail to update plane\n"); > + return ret; > + } > + > + return 0; > +} > + > +static void rockchip_drm_crtc_commit(struct drm_crtc *crtc) > +{ > + /* just do dummy now */ > +} > + > +static const struct drm_crtc_helper_funcs rockchip_crtc_helper_funcs = { > + .dpms = rockchip_drm_crtc_dpms, > + .prepare = rockchip_drm_crtc_prepare, > + .mode_fixup = rockchip_drm_crtc_mode_fixup, > + .mode_set = rockchip_drm_crtc_mode_set, > + .mode_set_base = rockchip_drm_crtc_mode_set_base, > + .commit = rockchip_drm_crtc_commit, > +}; > + > +static int rockchip_drm_crtc_page_flip(struct drm_crtc *crtc, > + struct drm_framebuffer *fb, > + struct drm_pending_vblank_event *event, > + uint32_t page_flip_flags) > +{ > + struct drm_device *dev = crtc->dev; > + struct vop_context *ctx = to_vop_ctx(crtc); > + struct drm_framebuffer *old_fb = crtc->primary->fb; > + int ret; > + > + /* when the page flip is requested, crtc's dpms should be on */ > + if (ctx->dpms > DRM_MODE_DPMS_ON) { > + DRM_DEBUG("failed page flip request at dpms[%d].\n", ctx->dpms); > + return 0; > + } > + > + ret = drm_vblank_get(dev, ctx->pipe); > + if (ret) { > + DRM_DEBUG("failed to acquire vblank counter\n"); > + return ret; > + } > + > + spin_lock_irq(&dev->event_lock); > + if (ctx->event) { > + spin_unlock_irq(&dev->event_lock); > + DRM_ERROR("already pending flip!\n"); > + return -EBUSY; > + } > + ctx->event = event; > + atomic_set(&ctx->wait_vsync_event, 1); > + spin_unlock_irq(&dev->event_lock); > + > + crtc->primary->fb = fb; > + > + ret = rockchip_update_plane_helper(crtc->primary, crtc, fb, > + crtc->x, crtc->y); > + if (ret) { > + crtc->primary->fb = old_fb; > + > + spin_lock_irq(&dev->event_lock); > + drm_vblank_put(dev, ctx->pipe); > + atomic_set(&ctx->wait_vsync_event, 0); > + ctx->event = NULL; > + spin_unlock_irq(&dev->event_lock); > + } > + > + return ret; > +} > + > +static void rockchip_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe) > +{ > + struct rockchip_drm_private *dev_priv = dev->dev_private; > + struct drm_crtc *drm_crtc = dev_priv->crtc[pipe]; > + struct vop_context *ctx; > + unsigned long flags; > + > + ctx = to_vop_ctx(drm_crtc); > + > + spin_lock_irqsave(&dev->event_lock, flags); > + > + if (ctx->event) { > + drm_send_vblank_event(dev, -1, ctx->event); > + drm_vblank_put(dev, pipe); > + atomic_set(&ctx->wait_vsync_event, 0); > + wake_up(&ctx->wait_vsync_queue); > + ctx->event = NULL; > + } > + > + spin_unlock_irqrestore(&dev->event_lock, flags); > +} > + > +static void rockchip_drm_crtc_destroy(struct drm_crtc *crtc) > +{ > + struct vop_context *ctx = to_vop_ctx(crtc); > + struct rockchip_drm_private *private = crtc->dev->dev_private; > + > + private->crtc[ctx->pipe] = NULL; > + drm_crtc_cleanup(crtc); > +} > + > +static const struct drm_crtc_funcs rockchip_crtc_funcs = { > + .set_config = drm_crtc_helper_set_config, > + .page_flip = rockchip_drm_crtc_page_flip, > + .destroy = rockchip_drm_crtc_destroy, > +}; > + > +static void rockchip_vsync_worker(struct work_struct *work) > +{ > + struct vop_context *ctx = container_of(work, struct vop_context, > + vsync_work); > + struct drm_device *drm = ctx->drm_dev; > + struct rockchip_drm_private *dev_priv = drm->dev_private; > + struct drm_crtc *crtc = dev_priv->crtc[ctx->pipe]; > + struct rockchip_plane *rockchip_plane; > + struct drm_plane *plane; > + uint32_t yrgb_mst; > + > + mutex_lock(&ctx->vsync_mutex); > + > + ctx->vsync_work_pending = false; > + > + list_for_each_entry(plane, &drm->mode_config.plane_list, head) { > + rockchip_plane = to_rockchip_plane(plane); > + > + if (to_vop_ctx(plane->crtc) != ctx) > + continue; > + if (rockchip_plane->enabled && !rockchip_plane->pending_fb) > + continue; > + if (!rockchip_plane->enabled && !rockchip_plane->front_fb) > + continue; > + /* > + * make sure the yrgb_mst take effect, so that > + * we can unreference the old framebuffer. > + */ > + yrgb_mst = VOP_WIN_GET_YRGBADDR(ctx, rockchip_plane->win); > + if (rockchip_plane->pending_yrgb_mst != yrgb_mst) { > + /* > + * some plane no complete, unref at next vblank > + */ > + ctx->vsync_work_pending = true; > + continue; > + } > + > + /* > + * drm_framebuffer_unreference maybe call iommu unmap, > + * and iommu not allow unmap buffer at irq context, > + * so we do drm_framebuffer_unreference at queue_work. > + */ > + if (rockchip_plane->front_fb) > + drm_framebuffer_unreference(rockchip_plane->front_fb); > + > + rockchip_plane->front_fb = rockchip_plane->pending_fb; > + rockchip_plane->pending_fb = NULL; > + > + /* > + * if primary plane flip complete, sending the event to > + * userspace > + */ > + if (&rockchip_plane->base == crtc->primary) > + rockchip_drm_crtc_finish_pageflip(ctx->drm_dev, > + ctx->pipe); > + } > + > + mutex_unlock(&ctx->vsync_mutex); > +} > + > +static irqreturn_t rockchip_vop_isr(int irq, void *data) > +{ > + struct vop_context *ctx = data; > + uint32_t intr0_reg; > + unsigned long flags; > + > + intr0_reg = vop_readl(ctx, INTR_CTRL0); > + if (intr0_reg & LINE_FLAG_INTR) { > + spin_lock_irqsave(&ctx->irq_lock, flags); > + vop_writel(ctx, INTR_CTRL0, intr0_reg | LINE_FLAG_INTR_CLR); > + spin_unlock_irqrestore(&ctx->irq_lock, flags); > + } else { > + return IRQ_NONE; > + } > + > + drm_handle_vblank(ctx->drm_dev, ctx->pipe); > + if (ctx->vsync_work_pending) > + queue_work(ctx->vsync_wq, &ctx->vsync_work); > + > + return IRQ_HANDLED; > +} > + > +static int vop_create_crtc(struct vop_context *ctx) > +{ > + struct device *dev = ctx->dev; > + struct drm_device *drm_dev = ctx->drm_dev; > + struct drm_plane *primary, *cursor; > + unsigned long possible_crtcs; > + struct drm_crtc *crtc; > + int ret; > + int nr; > + > + ctx->win_mask = 0; > + crtc = &ctx->crtc; > + > + ret = rockchip_drm_add_crtc(drm_dev, crtc, dev->of_node); > + if (ret < 0) > + return ret; > + ctx->pipe = ret; > + > + possible_crtcs = (1 << ctx->pipe); > + > + for (nr = 0; nr < VOP_MAX_WIN_SUPPORT; nr++) { > + if (nr == VOP_DEFAULT_PRIMARY) { > + primary = rockchip_plane_init(ctx, possible_crtcs, > + DRM_PLANE_TYPE_PRIMARY, > + VOP_DEFAULT_PRIMARY); > + if (IS_ERR(primary)) { > + DRM_ERROR("fail to init primary plane\n"); > + return PTR_ERR(primary); > + } > + } else if (nr == VOP_DEFAULT_CURSOR) { > + cursor = rockchip_plane_init(ctx, possible_crtcs, > + DRM_PLANE_TYPE_CURSOR, > + VOP_DEFAULT_CURSOR); > + if (IS_ERR(cursor)) { > + DRM_ERROR("fail to init cursor plane\n"); > + return PTR_ERR(cursor); > + } > + } else { > + struct drm_plane *plane; > + > + plane = rockchip_plane_init(ctx, possible_crtcs, > + DRM_PLANE_TYPE_OVERLAY, > + nr); > + if (IS_ERR(plane)) { > + DRM_ERROR("fail to init overlay plane\n"); > + return PTR_ERR(plane); > + } > + } > + } > + > + drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor, > + &rockchip_crtc_funcs); > + drm_crtc_helper_add(crtc, &rockchip_crtc_helper_funcs); > + > + return 0; > +} > + > +static int rockchip_vop_initial(struct vop_context *ctx) > +{ > + struct vop_driver_data *vop_data = ctx->data; > + const struct vop_reg_data *init_table = vop_data->init_table; > + struct reset_control *ahb_rst; > + int i, ret; > + > + ctx->hclk = devm_clk_get(ctx->dev, "hclk_vop"); > + if (IS_ERR(ctx->hclk)) { > + dev_err(ctx->dev, "failed to get hclk source\n"); > + return PTR_ERR(ctx->hclk); > + } > + ctx->aclk = devm_clk_get(ctx->dev, "aclk_vop"); > + if (IS_ERR(ctx->aclk)) { > + dev_err(ctx->dev, "failed to get aclk source\n"); > + return PTR_ERR(ctx->aclk); > + } > + ctx->dclk = devm_clk_get(ctx->dev, "dclk_vop"); > + if (IS_ERR(ctx->dclk)) { > + dev_err(ctx->dev, "failed to get dclk source\n"); > + return PTR_ERR(ctx->dclk); > + } > + > + ret = clk_prepare(ctx->hclk); > + if (ret < 0) { > + dev_err(ctx->dev, "failed to prepare hclk\n"); > + return ret; > + } > + > + ret = clk_prepare(ctx->dclk); > + if (ret < 0) { > + dev_err(ctx->dev, "failed to prepare dclk\n"); > + goto err_prepare_hclk; goto err_unprepare_hclk; > + } > + > + ret = clk_prepare(ctx->aclk); > + if (ret < 0) { > + dev_err(ctx->dev, "failed to prepare aclk\n"); > + goto err_prepare_dclk; goto err_unprepare_dclk; > + } > + > + ret = vop_clk_enable(ctx); > + if (ret < 0) > + goto err_prepare_aclk; goto err_unprepare_aclk; > + > + /* > + * do hclk_reset, reset all vop registers. > + */ > + ahb_rst = devm_reset_control_get(ctx->dev, "ahb"); > + if (IS_ERR(ahb_rst)) { > + dev_err(ctx->dev, "failed to get ahb reset\n"); > + ret = PTR_ERR(ahb_rst); > + goto err_diable_clk; > + } > + reset_control_assert(ahb_rst); > + usleep_range(10, 20); > + reset_control_deassert(ahb_rst); > + > + memcpy(ctx->regsbak, ctx->regs, ctx->len); > + > + for (i = 0; i < vop_data->table_size; i++) > + vop_writel(ctx, init_table[i].offset, init_table[i].value); > + > + for (i = 0; i < VOP_MAX_WIN_SUPPORT; i++) > + VOP_WIN_SET(ctx, vop_data->win[i], enable, 0); > + > + vop_cfg_done(ctx); > + > + /* > + * do dclk_reset, let all win config take affect, and then we can enable > + * iommu safe. > + */ > + ctx->dclk_rst = devm_reset_control_get(ctx->dev, "dclk"); > + if (IS_ERR(ctx->dclk_rst)) { > + dev_err(ctx->dev, "failed to get dclk reset\n"); > + ret = PTR_ERR(ctx->dclk_rst); > + goto err_diable_clk; goto err_disable_clk; > + } > + reset_control_assert(ctx->dclk_rst); > + usleep_range(10, 20); > + reset_control_deassert(ctx->dclk_rst); > + > + ctx->dpms = DRM_MODE_DPMS_ON; The reset at probe time is probably a good idea. However, this leaves the VOP enabled and clocking at... but what will it be displaying, and what mode will it use? Perhaps we should delay enabling clocks / dpms until the first mode set / dpms(DPMS_ON) request? > + > + return 0; > + > +err_prepare_aclk: > + clk_unprepare(ctx->aclk); > +err_prepare_dclk: > + clk_unprepare(ctx->dclk); > +err_prepare_hclk: > + clk_unprepare(ctx->hclk); > +err_diable_clk: > + vop_clk_disable(ctx); > + return ret; err_disable_clk: vop_clk_disable(ctx); err_unprepare_aclk: clk_unprepare(ctx->aclk); err_unprepare_dclk: clk_unprepare(ctx->dclk); err_unprepare_hclk: clk_unprepare(ctx->hclk); return ret; That's it for now! -djk > +} > + > +static int vop_bind(struct device *dev, struct device *master, void *data) > +{ > + struct platform_device *pdev = to_platform_device(dev); > + struct vop_driver_data *vop_data = vop_get_driver_data(dev); > + struct drm_device *drm_dev = data; > + struct vop_context *ctx; > + struct resource *res; > + int ret; > + > + if (!vop_data) > + return -ENODEV; > + > + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) > + return -ENOMEM; > + > + ctx->dev = dev; > + ctx->data = vop_data; > + ctx->drm_dev = drm_dev; > + dev_set_drvdata(dev, ctx); > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + ctx->len = resource_size(res); > + ctx->regs = devm_ioremap_resource(dev, res); > + if (IS_ERR(ctx->regs)) > + return PTR_ERR(ctx->regs); > + > + ctx->regsbak = devm_kzalloc(dev, ctx->len, GFP_KERNEL); > + if (!ctx->regsbak) > + return -ENOMEM; > + > + ret = rockchip_vop_initial(ctx); > + if (ret < 0) { > + dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret); > + return ret; > + } > + > + ctx->irq = platform_get_irq(pdev, 0); > + if (ctx->irq < 0) { > + dev_err(dev, "cannot find irq for vop\n"); > + return ctx->irq; > + } > + > + spin_lock_init(&ctx->reg_lock); > + spin_lock_init(&ctx->irq_lock); > + > + init_waitqueue_head(&ctx->wait_vsync_queue); > + atomic_set(&ctx->wait_vsync_event, 0); > + > + ret = vop_iommu_init(ctx); > + if (ret) { > + DRM_ERROR("Failed to setup iommu, %d\n", ret); > + return ret; > + } > + > + ctx->vsync_wq = create_singlethread_workqueue("vsync"); > + if (!ctx->vsync_wq) { > + dev_err(dev, "failed to create workqueue\n"); > + return -EINVAL; > + } > + INIT_WORK(&ctx->vsync_work, rockchip_vsync_worker); > + > + mutex_init(&ctx->vsync_mutex); > + pm_runtime_enable(&pdev->dev); > + > + ret = devm_request_irq(dev, ctx->irq, rockchip_vop_isr, > + IRQF_SHARED, dev_name(dev), ctx); > + if (ret) { > + dev_err(dev, "cannot requeset irq%d - err %d\n", ctx->irq, ret); > + return ret; > + } > + > + return vop_create_crtc(ctx); > +} > + > +static void vop_unbind(struct device *dev, struct device *master, > + void *data) > +{ > + struct drm_device *drm_dev = data; > + struct vop_context *ctx = dev_get_drvdata(dev); > + struct drm_crtc *crtc = &ctx->crtc; > + > + drm_crtc_cleanup(crtc); > + pm_runtime_disable(dev); > + rockchip_drm_remove_crtc(drm_dev, ctx->pipe); > + > + vop_iommu_fini(ctx); > +} > + > +static const struct component_ops vop_component_ops = { > + .bind = vop_bind, > + .unbind = vop_unbind, > +}; > + > +static int vop_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct vop_context *ctx; > + > + if (!dev->of_node) { > + dev_err(dev, "can't find vop devices\n"); > + return -ENODEV; > + } > + > + platform_set_drvdata(pdev, ctx); > + > + return component_add(dev, &vop_component_ops); > +} > + > +static int vop_remove(struct platform_device *pdev) > +{ > + component_del(&pdev->dev, &vop_component_ops); > + > + return 0; > +} > + > +struct platform_driver rockchip_vop_platform_driver = { > + .probe = vop_probe, > + .remove = vop_remove, > + .driver = { > + .name = "rockchip-vop", > + .owner = THIS_MODULE, > + .of_match_table = of_match_ptr(vop_driver_dt_match), > + }, > +}; > + > +module_platform_driver(rockchip_vop_platform_driver); > + > +MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>"); > +MODULE_DESCRIPTION("ROCKCHIP VOP Driver"); > +MODULE_LICENSE("GPL v2"); > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h > new file mode 100644 > index 0000000..d2a04f0 > --- /dev/null > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h > @@ -0,0 +1,196 @@ > +/* > + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > + * Author:Mark Yao <mark.yao@rock-chips.com> > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#ifndef _ROCKCHIP_DRM_VOP_H > +#define _ROCKCHIP_DRM_VOP_H > + > +/* register definition */ > +#define REG_CFG_DONE 0x0000 > +#define VERSION_INFO 0x0004 > +#define SYS_CTRL 0x0008 > +#define SYS_CTRL1 0x000c > +#define DSP_CTRL0 0x0010 > +#define DSP_CTRL1 0x0014 > +#define DSP_BG 0x0018 > +#define MCU_CTRL 0x001c > +#define INTR_CTRL0 0x0020 > +#define INTR_CTRL1 0x0024 > +#define WIN0_CTRL0 0x0030 > +#define WIN0_CTRL1 0x0034 > +#define WIN0_COLOR_KEY 0x0038 > +#define WIN0_VIR 0x003c > +#define WIN0_YRGB_MST 0x0040 > +#define WIN0_CBR_MST 0x0044 > +#define WIN0_ACT_INFO 0x0048 > +#define WIN0_DSP_INFO 0x004c > +#define WIN0_DSP_ST 0x0050 > +#define WIN0_SCL_FACTOR_YRGB 0x0054 > +#define WIN0_SCL_FACTOR_CBR 0x0058 > +#define WIN0_SCL_OFFSET 0x005c > +#define WIN0_SRC_ALPHA_CTRL 0x0060 > +#define WIN0_DST_ALPHA_CTRL 0x0064 > +#define WIN0_FADING_CTRL 0x0068 > +/* win1 register */ > +#define WIN1_CTRL0 0x0070 > +#define WIN1_CTRL1 0x0074 > +#define WIN1_COLOR_KEY 0x0078 > +#define WIN1_VIR 0x007c > +#define WIN1_YRGB_MST 0x0080 > +#define WIN1_CBR_MST 0x0084 > +#define WIN1_ACT_INFO 0x0088 > +#define WIN1_DSP_INFO 0x008c > +#define WIN1_DSP_ST 0x0090 > +#define WIN1_SCL_FACTOR_YRGB 0x0094 > +#define WIN1_SCL_FACTOR_CBR 0x0098 > +#define WIN1_SCL_OFFSET 0x009c > +#define WIN1_SRC_ALPHA_CTRL 0x00a0 > +#define WIN1_DST_ALPHA_CTRL 0x00a4 > +#define WIN1_FADING_CTRL 0x00a8 > +/* win2 register */ > +#define WIN2_CTRL0 0x00b0 > +#define WIN2_CTRL1 0x00b4 > +#define WIN2_VIR0_1 0x00b8 > +#define WIN2_VIR2_3 0x00bc > +#define WIN2_MST0 0x00c0 > +#define WIN2_DSP_INFO0 0x00c4 > +#define WIN2_DSP_ST0 0x00c8 > +#define WIN2_COLOR_KEY 0x00cc > +#define WIN2_MST1 0x00d0 > +#define WIN2_DSP_INFO1 0x00d4 > +#define WIN2_DSP_ST1 0x00d8 > +#define WIN2_SRC_ALPHA_CTRL 0x00dc > +#define WIN2_MST2 0x00e0 > +#define WIN2_DSP_INFO2 0x00e4 > +#define WIN2_DSP_ST2 0x00e8 > +#define WIN2_DST_ALPHA_CTRL 0x00ec > +#define WIN2_MST3 0x00f0 > +#define WIN2_DSP_INFO3 0x00f4 > +#define WIN2_DSP_ST3 0x00f8 > +#define WIN2_FADING_CTRL 0x00fc > +/* win3 register */ > +#define WIN3_CTRL0 0x0100 > +#define WIN3_CTRL1 0x0104 > +#define WIN3_VIR0_1 0x0108 > +#define WIN3_VIR2_3 0x010c > +#define WIN3_MST0 0x0110 > +#define WIN3_DSP_INFO0 0x0114 > +#define WIN3_DSP_ST0 0x0118 > +#define WIN3_COLOR_KEY 0x011c > +#define WIN3_MST1 0x0120 > +#define WIN3_DSP_INFO1 0x0124 > +#define WIN3_DSP_ST1 0x0128 > +#define WIN3_SRC_ALPHA_CTRL 0x012c > +#define WIN3_MST2 0x0130 > +#define WIN3_DSP_INFO2 0x0134 > +#define WIN3_DSP_ST2 0x0138 > +#define WIN3_DST_ALPHA_CTRL 0x013c > +#define WIN3_MST3 0x0140 > +#define WIN3_DSP_INFO3 0x0144 > +#define WIN3_DSP_ST3 0x0148 > +#define WIN3_FADING_CTRL 0x014c > +/* hwc register */ > +#define HWC_CTRL0 0x0150 > +#define HWC_CTRL1 0x0154 > +#define HWC_MST 0x0158 > +#define HWC_DSP_ST 0x015c > +#define HWC_SRC_ALPHA_CTRL 0x0160 > +#define HWC_DST_ALPHA_CTRL 0x0164 > +#define HWC_FADING_CTRL 0x0168 > +/* post process register */ > +#define POST_DSP_HACT_INFO 0x0170 > +#define POST_DSP_VACT_INFO 0x0174 > +#define POST_SCL_FACTOR_YRGB 0x0178 > +#define POST_SCL_CTRL 0x0180 > +#define POST_DSP_VACT_INFO_F1 0x0184 > +#define DSP_HTOTAL_HS_END 0x0188 > +#define DSP_HACT_ST_END 0x018c > +#define DSP_VTOTAL_VS_END 0x0190 > +#define DSP_VACT_ST_END 0x0194 > +#define DSP_VS_ST_END_F1 0x0198 > +#define DSP_VACT_ST_END_F1 0x019c > +/* register definition end */ > + > +/* interrupt define */ > +#define DSP_HOLD_VALID_INTR (1 << 0) > +#define FS_INTR (1 << 1) > +#define LINE_FLAG_INTR (1 << 2) > +#define BUS_ERROR_INTR (1 << 3) > + > +#define DSP_HOLD_VALID_INTR_EN(x) ((x) << 4) > +#define FS_INTR_EN(x) ((x) << 5) > +#define LINE_FLAG_INTR_EN(x) ((x) << 6) > +#define BUS_ERROR_INTR_EN(x) ((x) << 7) > +#define DSP_HOLD_VALID_INTR_MASK (1 << 4) > +#define FS_INTR_EN_MASK (1 << 5) > +#define LINE_FLAG_INTR_MASK (1 << 6) > +#define BUS_ERROR_INTR_MASK (1 << 7) > + > +#define DSP_HOLD_VALID_INTR_CLR (1 << 8) > +#define FS_INTR_EN_CLR (1 << 9) > +#define LINE_FLAG_INTR_CLR (1 << 10) > +#define BUS_ERROR_INTR_CLR (1 << 11) > +#define DSP_LINE_NUM(x) (((x) & 0x1fff) << 12) > +#define DSP_LINE_NUM_MASK (0x1fff << 12) > + > +/* src alpha ctrl define */ > +#define SRC_FADING_VALUE(x) (((x) & 0xff) << 24) > +#define SRC_GLOBAL_ALPHA(x) (((x) & 0xff) << 16) > +#define SRC_FACTOR_M0(x) (((x) & 0x7) << 6) > +#define SRC_ALPHA_CAL_M0(x) (((x) & 0x1) << 5) > +#define SRC_BLEND_M0(x) (((x) & 0x3) << 3) > +#define SRC_ALPHA_M0(x) (((x) & 0x1) << 2) > +#define SRC_COLOR_M0(x) (((x) & 0x1) << 1) > +#define SRC_ALPHA_EN(x) (((x) & 0x1) << 0) > +/* dst alpha ctrl define */ > +#define DST_FACTOR_M0(x) (((x) & 0x7) << 6) > + > +/* > + * display output interface supported by rockchip lcdc > + */ > +#define ROCKCHIP_OUT_MODE_P888 0 > +#define ROCKCHIP_OUT_MODE_P666 1 > +#define ROCKCHIP_OUT_MODE_P565 2 > +/* for use special outface */ > +#define ROCKCHIP_OUT_MODE_AAAA 15 > + > +enum alpha_mode { > + ALPHA_STRAIGHT, > + ALPHA_INVERSE, > +}; > + > +enum global_blend_mode { > + ALPHA_GLOBAL, > + ALPHA_PER_PIX, > + ALPHA_PER_PIX_GLOBAL, > +}; > + > +enum alpha_cal_mode { > + ALPHA_SATURATION, > + ALPHA_NO_SATURATION, > +}; > + > +enum color_mode { > + ALPHA_SRC_PRE_MUL, > + ALPHA_SRC_NO_PRE_MUL, > +}; > + > +enum factor_mode { > + ALPHA_ZERO, > + ALPHA_ONE, > + ALPHA_SRC, > + ALPHA_SRC_INVERSE, > + ALPHA_SRC_GLOBAL, > +}; > + > +#endif /* _ROCKCHIP_DRM_VOP_H */ > -- > 1.7.9.5 > >
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index b066bb3..7c4c3c6 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -171,6 +171,8 @@ config DRM_SAVAGE source "drivers/gpu/drm/exynos/Kconfig" +source "drivers/gpu/drm/rockchip/Kconfig" + source "drivers/gpu/drm/vmwgfx/Kconfig" source "drivers/gpu/drm/gma500/Kconfig" diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 4a55d59..d03387a 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/ obj-$(CONFIG_DRM_VIA) +=via/ obj-$(CONFIG_DRM_NOUVEAU) +=nouveau/ obj-$(CONFIG_DRM_EXYNOS) +=exynos/ +obj-$(CONFIG_DRM_ROCKCHIP) +=rockchip/ obj-$(CONFIG_DRM_GMA500) += gma500/ obj-$(CONFIG_DRM_UDL) += udl/ obj-$(CONFIG_DRM_AST) += ast/ diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig new file mode 100644 index 0000000..87255f7 --- /dev/null +++ b/drivers/gpu/drm/rockchip/Kconfig @@ -0,0 +1,17 @@ +config DRM_ROCKCHIP + tristate "DRM Support for Rockchip" + depends on DRM && ROCKCHIP_IOMMU && ARM_DMA_USE_IOMMU && IOMMU_API + select DRM_KMS_HELPER + select DRM_KMS_FB_HELPER + select DRM_PANEL + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + select VT_HW_CONSOLE_BINDING if FRAMEBUFFER_CONSOLE + select VIDEOMODE_HELPERS + help + Choose this option if you have a Rockchip soc chipset. + This driver provides kernel mode setting and buffer + management to userspace. This driver does not provides + 2D or 3D acceleration; acceleration is performed by other + IP found on the SoC. diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile new file mode 100644 index 0000000..b3a5193 --- /dev/null +++ b/drivers/gpu/drm/rockchip/Makefile @@ -0,0 +1,8 @@ +# +# Makefile for the drm device driver. This driver provides support for the +# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher. + +rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o rockchip_drm_fbdev.o \ + rockchip_drm_gem.o rockchip_drm_vop.o + +obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c new file mode 100644 index 0000000..a571acc --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -0,0 +1,516 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * based on exynos_drm_drv.c + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <asm/dma-iommu.h> + +#include <drm/drmP.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_fb_helper.h> +#include <linux/dma-mapping.h> +#include <linux/pm_runtime.h> +#include <linux/of_graph.h> +#include <linux/component.h> + +#include "rockchip_drm_drv.h" +#include "rockchip_drm_fb.h" +#include "rockchip_drm_fbdev.h" +#include "rockchip_drm_gem.h" + +#define DRIVER_NAME "rockchip" +#define DRIVER_DESC "RockChip Soc DRM" +#define DRIVER_DATE "20140818" +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 + +/* + * Attach a (component) device to the shared drm dma mapping from master drm + * device. This is used by the VOPs to map GEM buffers to a common DMA + * mapping. + */ +int rockchip_drm_dma_attach_device(struct drm_device *drm_dev, + struct device *dev) +{ + struct dma_iommu_mapping *mapping = drm_dev->dev->archdata.mapping; + int ret; + + ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + dma_set_max_seg_size(dev, 0xffffffffu); + + return arm_iommu_attach_device(dev, mapping); +} + +void rockchip_drm_dma_detach_device(struct drm_device *drm_dev, + struct device *dev) +{ + arm_iommu_detach_device(drm_dev->dev); +} + +static int rockchip_drm_load(struct drm_device *drm_dev, unsigned long flags) +{ + struct rockchip_drm_private *private; + struct dma_iommu_mapping *mapping; + struct device *dev = drm_dev->dev; + int ret; + + private = devm_kzalloc(drm_dev->dev, sizeof(*private), GFP_KERNEL); + if (!private) + return -ENOMEM; + + drm_dev->dev_private = private; + + drm_mode_config_init(drm_dev); + + rockchip_drm_mode_config_init(drm_dev); + + dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms), + GFP_KERNEL); + if (!dev->dma_parms) { + ret = -ENOMEM; + goto err_config_cleanup; + } + + /* TODO(djkurtz): fetch the mapping start/size from somewhere */ + mapping = arm_iommu_create_mapping(&platform_bus_type, 0x10000000, + SZ_1G); + if (IS_ERR(mapping)) { + ret = PTR_ERR(mapping); + goto err_config_cleanup; + } + + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); + if (ret) + goto err_release_mapping; + + dma_set_max_seg_size(dev, 0xffffffffu); + + ret = arm_iommu_attach_device(dev, mapping); + if (ret) + goto err_release_mapping; + + /* Try to bind all sub drivers. */ + ret = component_bind_all(dev, drm_dev); + if (ret) + goto err_detach_device; + + /* init kms poll for handling hpd */ + drm_kms_helper_poll_init(drm_dev); + + /* + * enable drm irq mode. + * - with irq_enabled = true, we can use the vblank feature. + */ + drm_dev->irq_enabled = true; + + /* + * with vblank_disable_allowed = true, vblank interrupt will be disabled + * by drm timer once a current process gives up ownership of + * vblank event.(after drm_vblank_put function is called) + */ + drm_dev->vblank_disable_allowed = true; + + ret = drm_vblank_init(drm_dev, ROCKCHIP_MAX_CRTC); + if (ret) + goto err_kms_helper_poll_fini; + + rockchip_drm_fbdev_init(drm_dev); + + /* force connectors detection */ + drm_helper_hpd_irq_event(drm_dev); + + return 0; + +err_kms_helper_poll_fini: + drm_kms_helper_poll_fini(drm_dev); + component_unbind_all(dev, drm_dev); +err_detach_device: + arm_iommu_detach_device(dev); +err_release_mapping: + arm_iommu_release_mapping(dev->archdata.mapping); +err_config_cleanup: + drm_mode_config_cleanup(drm_dev); + drm_dev->dev_private = NULL; + return ret; +} + +static int rockchip_drm_unload(struct drm_device *drm_dev) +{ + struct device *dev = drm_dev->dev; + + drm_kms_helper_poll_fini(drm_dev); + component_unbind_all(dev, drm_dev); + arm_iommu_detach_device(dev); + arm_iommu_release_mapping(dev->archdata.mapping); + drm_mode_config_cleanup(drm_dev); + drm_dev->dev_private = NULL; + + return 0; +} + +void rockchip_drm_lastclose(struct drm_device *dev) +{ + struct rockchip_drm_private *priv = dev->dev_private; + + if (priv->fb_helper) + drm_fb_helper_restore_fbdev_mode_unlocked(priv->fb_helper); +} + +static const struct file_operations rockchip_drm_driver_fops = { + .owner = THIS_MODULE, + .open = drm_open, + .mmap = rockchip_drm_gem_mmap, + .poll = drm_poll, + .read = drm_read, + .unlocked_ioctl = drm_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif + .release = drm_release, +}; + +const struct vm_operations_struct rockchip_drm_vm_ops = { + .open = drm_gem_vm_open, + .close = drm_gem_vm_close, +}; + +static struct drm_driver rockchip_drm_driver = { + .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, + .load = rockchip_drm_load, + .unload = rockchip_drm_unload, + .lastclose = rockchip_drm_lastclose, + .get_vblank_counter = drm_vblank_count, + .enable_vblank = rockchip_drm_crtc_enable_vblank, + .disable_vblank = rockchip_drm_crtc_disable_vblank, + .gem_vm_ops = &rockchip_drm_vm_ops, + .gem_free_object = rockchip_gem_free_object, + .dumb_create = rockchip_gem_dumb_create, + .dumb_map_offset = rockchip_gem_dumb_map_offset, + .dumb_destroy = drm_gem_dumb_destroy, + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, + .gem_prime_import = drm_gem_prime_import, + .gem_prime_export = drm_gem_prime_export, + .gem_prime_get_sg_table = rockchip_gem_prime_get_sg_table, + .gem_prime_vmap = rockchip_gem_prime_vmap, + .gem_prime_vunmap = rockchip_gem_prime_vunmap, + .gem_prime_mmap = rockchip_gem_prime_mmap, + .fops = &rockchip_drm_driver_fops, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, +}; + +#ifdef CONFIG_PM_SLEEP +static int rockchip_drm_suspend(struct drm_device *dev, pm_message_t state) +{ + struct drm_connector *connector; + + drm_modeset_lock_all(dev); + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + int old_dpms = connector->dpms; + + if (connector->funcs->dpms) + connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF); + + /* Set the old mode back to the connector for resume */ + connector->dpms = old_dpms; + } + drm_modeset_unlock_all(dev); + + return 0; +} + +static int rockchip_drm_resume(struct drm_device *dev) +{ + struct drm_connector *connector; + + drm_modeset_lock_all(dev); + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + if (connector->funcs->dpms) + connector->funcs->dpms(connector, connector->dpms); + } + drm_modeset_unlock_all(dev); + + drm_helper_resume_force_mode(dev); + + return 0; +} + +static int rockchip_drm_sys_suspend(struct device *dev) +{ + struct drm_device *drm_dev = dev_get_drvdata(dev); + pm_message_t message; + + if (pm_runtime_suspended(dev)) + return 0; + + message.event = PM_EVENT_SUSPEND; + + return rockchip_drm_suspend(drm_dev, message); +} + +static int rockchip_drm_sys_resume(struct device *dev) +{ + struct drm_device *drm_dev = dev_get_drvdata(dev); + + if (!pm_runtime_suspended(dev)) + return 0; + + return rockchip_drm_resume(drm_dev); +} +#endif + +static const struct dev_pm_ops rockchip_drm_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(rockchip_drm_sys_suspend, + rockchip_drm_sys_resume) +}; + +int rockchip_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, + struct device_node *np) +{ + struct rockchip_drm_private *priv = drm->dev_private; + struct device_node *port; + int pipe; + + if (priv->num_pipe >= ROCKCHIP_MAX_CRTC) + return -EINVAL; + + port = of_get_child_by_name(np, "port"); + if (!port) { + dev_err(drm->dev, "no port node found in %s\n", + np->full_name); + return -ENXIO; + } + pipe = priv->num_pipe++; + crtc->port = port; + + priv->crtc[pipe] = crtc; + + return pipe; +} + +void rockchip_drm_remove_crtc(struct drm_device *drm, int pipe) +{ + struct rockchip_drm_private *priv = drm->dev_private; + + priv->num_pipe--; + of_node_put(priv->crtc[pipe]->port); + priv->crtc[pipe] = NULL; +} + +struct drm_crtc *rockchip_drm_find_crtc(struct drm_device *drm, int pipe) +{ + struct rockchip_drm_private *priv = drm->dev_private; + + if (pipe < ROCKCHIP_MAX_CRTC && priv->crtc[pipe]) + return priv->crtc[pipe]; + + return NULL; +} + +/* + * @node: device tree node containing encoder input ports + * @encoder: drm_encoder + */ +int rockchip_drm_encoder_get_mux_id(struct device_node *node, + struct drm_encoder *encoder) +{ + struct device_node *ep = NULL; + struct drm_crtc *crtc = encoder->crtc; + struct of_endpoint endpoint; + struct device_node *port; + int ret; + + if (!node || !crtc) + return -EINVAL; + + do { + ep = of_graph_get_next_endpoint(node, ep); + if (!ep) + break; + + port = of_graph_get_remote_port(ep); + of_node_put(port); + if (port == crtc->port) { + ret = of_graph_parse_endpoint(ep, &endpoint); + return ret ?: endpoint.id; + } + } while (ep); + + return -EINVAL; +} + +static int compare_of(struct device *dev, void *data) +{ + struct device_node *np = data; + + return dev->of_node == np; +} + +static void rockchip_add_endpoints(struct device *dev, + struct component_match **match, + struct device_node *port) +{ + struct device_node *ep, *remote; + + for_each_child_of_node(port, ep) { + remote = of_graph_get_remote_port_parent(ep); + if (!remote || !of_device_is_available(remote)) { + of_node_put(remote); + continue; + } else if (!of_device_is_available(remote->parent)) { + dev_warn(dev, "parent device of %s is not available\n", + remote->full_name); + of_node_put(remote); + continue; + } + + component_match_add(dev, match, compare_of, remote); + of_node_put(remote); + } +} + +static int rockchip_drm_bind(struct device *dev) +{ + struct drm_device *drm; + int ret; + + drm = drm_dev_alloc(&rockchip_drm_driver, dev); + if (!drm) + return -ENOMEM; + + ret = drm_dev_set_unique(drm, "%s", dev_name(dev)); + if (ret) + goto err_free; + + ret = drm_dev_register(drm, 0); + if (ret) + goto err_free; + + dev_set_drvdata(dev, drm); + + return 0; + +err_free: + drm_dev_unref(drm); + return ret; +} + +static void rockchip_drm_unbind(struct device *dev) +{ + struct drm_device *drm = dev_get_drvdata(dev); + + drm_dev_unregister(drm); + drm_dev_unref(drm); +} + +static const struct component_master_ops rockchip_drm_ops = { + .bind = rockchip_drm_bind, + .unbind = rockchip_drm_unbind, +}; + +static int rockchip_drm_platform_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct component_match *match = NULL; + struct device_node *np = dev->of_node; + struct device_node *port; + int i; + int ret; + + if (!np) + return -ENODEV; + /* + * Bind the crtc ports first, so that + * drm_of_find_possible_crtcs called from encoder .bind callbacks + * works as expected. + */ + for (i = 0;; i++) { + port = of_parse_phandle(np, "ports", i); + if (!port) + break; + + if (!of_device_is_available(port->parent)) { + of_node_put(port); + continue; + } + + component_match_add(dev, &match, compare_of, port->parent); + of_node_put(port); + } + + if (i == 0) { + dev_err(dev, "missing 'ports' property\n"); + return -ENODEV; + } + /* + * For each bound crtc, bind the encoders attached to its + * remote endpoint. + */ + for (i = 0;; i++) { + port = of_parse_phandle(np, "ports", i); + if (!port) + break; + + if (!of_device_is_available(port->parent)) { + of_node_put(port); + continue; + } + + rockchip_add_endpoints(dev, &match, port); + of_node_put(port); + } + + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + return component_master_add_with_match(dev, &rockchip_drm_ops, match); +} + +static int rockchip_drm_platform_remove(struct platform_device *pdev) +{ + component_master_del(&pdev->dev, &rockchip_drm_ops); + + return 0; +} + +static const struct of_device_id rockchip_drm_dt_ids[] = { + { .compatible = "rockchip,display-subsystem", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, rockchip_drm_dt_ids); + +static struct platform_driver rockchip_drm_platform_driver = { + .probe = rockchip_drm_platform_probe, + .remove = rockchip_drm_platform_remove, + .driver = { + .owner = THIS_MODULE, + .name = "rockchip-drm", + .of_match_table = rockchip_drm_dt_ids, + .pm = &rockchip_drm_pm_ops, + }, +}; + +module_platform_driver(rockchip_drm_platform_driver); + +MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>"); +MODULE_DESCRIPTION("ROCKCHIP DRM Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h new file mode 100644 index 0000000..98094ecf --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h @@ -0,0 +1,61 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * based on exynos_drm_drv.h + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _ROCKCHIP_DRM_DRV_H +#define _ROCKCHIP_DRM_DRV_H + +#include <linux/module.h> +#include <linux/component.h> + +#define ROCKCHIP_MAX_FB_BUFFER 3 +#define ROCKCHIP_MAX_CONNECTOR 2 +#define ROCKCHIP_MAX_CRTC 2 + +struct drm_device; +struct drm_connector; + +/* + * Rockchip drm private structure. + * + * @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc. + * @num_pipe: number of pipes for this device. + */ +struct rockchip_drm_private { + struct drm_fb_helper *fb_helper; + /* + * created crtc object would be contained at this array and + * this array is used to be aware of which crtc did it request vblank. + */ + struct drm_crtc *crtc[ROCKCHIP_MAX_CRTC]; + + unsigned int num_pipe; +}; + +int rockchip_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, + struct device_node *port); +void rockchip_drm_remove_crtc(struct drm_device *drm, int pipe); +struct drm_crtc *rockchip_drm_find_crtc(struct drm_device *drm, int pipe); +int rockchip_drm_encoder_get_mux_id(struct device_node *node, + struct drm_encoder *encoder); +int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type); +int rockchip_drm_crtc_enable_vblank(struct drm_device *dev, int pipe); +void rockchip_drm_crtc_disable_vblank(struct drm_device *dev, int pipe); +int rockchip_drm_dma_attach_device(struct drm_device *drm_dev, + struct device *dev); +void rockchip_drm_dma_detach_device(struct drm_device *drm_dev, + struct device *dev); + +#endif /* _ROCKCHIP_DRM_DRV_H_ */ diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c new file mode 100644 index 0000000..482f7b8 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c @@ -0,0 +1,201 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <drm/drm.h> +#include <drm/drmP.h> +#include <drm/drm_fb_helper.h> +#include <drm/drm_crtc_helper.h> + +#include "rockchip_drm_drv.h" +#include "rockchip_drm_gem.h" + +#define to_rockchip_fb(x) container_of(x, struct rockchip_drm_fb, fb) + +struct rockchip_drm_fb { + struct drm_framebuffer fb; + struct drm_gem_object *obj[ROCKCHIP_MAX_FB_BUFFER]; +}; + +struct drm_gem_object *rockchip_fb_get_gem_obj(struct drm_framebuffer *fb, + unsigned int plane) +{ + struct rockchip_drm_fb *rk_fb = to_rockchip_fb(fb); + + if (plane >= ROCKCHIP_MAX_FB_BUFFER) + return NULL; + + return rk_fb->obj[plane]; +} + +static void rockchip_drm_fb_destroy(struct drm_framebuffer *fb) +{ + struct rockchip_drm_fb *rockchip_fb = to_rockchip_fb(fb); + struct drm_gem_object *obj; + int i; + + for (i = 0; i < ROCKCHIP_MAX_FB_BUFFER; i++) { + obj = rockchip_fb->obj[i]; + if (obj) + drm_gem_object_unreference_unlocked(obj); + } + + drm_framebuffer_cleanup(fb); + kfree(rockchip_fb); +} + +static int rockchip_drm_fb_create_handle(struct drm_framebuffer *fb, + struct drm_file *file_priv, + unsigned int *handle) +{ + struct rockchip_drm_fb *rockchip_fb = to_rockchip_fb(fb); + + return drm_gem_handle_create(file_priv, + rockchip_fb->obj[0], handle); +} + +static struct drm_framebuffer_funcs rockchip_drm_fb_funcs = { + .destroy = rockchip_drm_fb_destroy, + .create_handle = rockchip_drm_fb_create_handle, +}; + +static struct rockchip_drm_fb * +rockchip_fb_alloc(struct drm_device *dev, struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object **obj, unsigned int num_planes) +{ + struct rockchip_drm_fb *rockchip_fb; + int ret; + int i; + + rockchip_fb = kzalloc(sizeof(*rockchip_fb), GFP_KERNEL); + if (!rockchip_fb) + return ERR_PTR(-ENOMEM); + + drm_helper_mode_fill_fb_struct(&rockchip_fb->fb, mode_cmd); + + for (i = 0; i < num_planes; i++) + rockchip_fb->obj[i] = obj[i]; + + ret = drm_framebuffer_init(dev, &rockchip_fb->fb, + &rockchip_drm_fb_funcs); + if (ret) { + dev_err(dev->dev, "Failed to initialize framebuffer: %d\n", + ret); + kfree(rockchip_fb); + return ERR_PTR(ret); + } + + return rockchip_fb; +} + +static struct drm_framebuffer * +rockchip_user_fb_create(struct drm_device *dev, struct drm_file *file_priv, + struct drm_mode_fb_cmd2 *mode_cmd) +{ + struct rockchip_drm_fb *rockchip_fb; + struct drm_gem_object *objs[ROCKCHIP_MAX_FB_BUFFER]; + struct drm_gem_object *obj; + unsigned int hsub; + unsigned int vsub; + int num_planes; + int ret; + int i; + + hsub = drm_format_horz_chroma_subsampling(mode_cmd->pixel_format); + vsub = drm_format_vert_chroma_subsampling(mode_cmd->pixel_format); + num_planes = min(drm_format_num_planes(mode_cmd->pixel_format), + ROCKCHIP_MAX_FB_BUFFER); + + for (i = 0; i < num_planes; i++) { + unsigned int width = mode_cmd->width / (i ? hsub : 1); + unsigned int height = mode_cmd->height / (i ? vsub : 1); + unsigned int min_size; + + obj = drm_gem_object_lookup(dev, file_priv, + mode_cmd->handles[i]); + if (!obj) { + dev_err(dev->dev, "Failed to lookup GEM object\n"); + ret = -ENXIO; + goto err_gem_object_unreference; + } + + min_size = (height - 1) * mode_cmd->pitches[i] + + mode_cmd->offsets[i] + + width * drm_format_plane_cpp(mode_cmd->pixel_format, i); + + if (obj->size < min_size) { + drm_gem_object_unreference_unlocked(obj); + ret = -EINVAL; + goto err_gem_object_unreference; + } + objs[i] = obj; + } + + rockchip_fb = rockchip_fb_alloc(dev, mode_cmd, objs, i); + if (IS_ERR(rockchip_fb)) { + ret = PTR_ERR(rockchip_fb); + goto err_gem_object_unreference; + } + + return &rockchip_fb->fb; + +err_gem_object_unreference: + for (i--; i >= 0; i--) + drm_gem_object_unreference_unlocked(objs[i]); + return ERR_PTR(ret); +} + +static void rockchip_drm_output_poll_changed(struct drm_device *dev) +{ + struct rockchip_drm_private *private = dev->dev_private; + struct drm_fb_helper *fb_helper = private->fb_helper; + + if (fb_helper) + drm_fb_helper_hotplug_event(fb_helper); +} + +static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = { + .fb_create = rockchip_user_fb_create, + .output_poll_changed = rockchip_drm_output_poll_changed, +}; + +struct drm_framebuffer * +rockchip_drm_framebuffer_init(struct drm_device *dev, + struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj) +{ + struct rockchip_drm_fb *rockchip_fb; + + rockchip_fb = rockchip_fb_alloc(dev, mode_cmd, &obj, 1); + if (IS_ERR(rockchip_fb)) + return NULL; + + return &rockchip_fb->fb; +} + +void rockchip_drm_mode_config_init(struct drm_device *dev) +{ + dev->mode_config.min_width = 0; + dev->mode_config.min_height = 0; + + /* + * set max width and height as default value(4096x4096). + * this value would be used to check framebuffer size limitation + * at drm_mode_addfb(). + */ + dev->mode_config.max_width = 4096; + dev->mode_config.max_height = 4096; + + dev->mode_config.funcs = &rockchip_drm_mode_config_funcs; +} diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.h b/drivers/gpu/drm/rockchip/rockchip_drm_fb.h new file mode 100644 index 0000000..09574d4 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _ROCKCHIP_DRM_FB_H +#define _ROCKCHIP_DRM_FB_H + +struct drm_framebuffer * +rockchip_drm_framebuffer_init(struct drm_device *dev, + struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj); +void rockchip_drm_framebuffer_fini(struct drm_framebuffer *fb); + +void rockchip_drm_mode_config_init(struct drm_device *dev); + +struct drm_gem_object *rockchip_fb_get_gem_obj(struct drm_framebuffer *fb, + unsigned int plane); +#endif /* _ROCKCHIP_DRM_FB_H */ diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c new file mode 100644 index 0000000..ae563f5 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c @@ -0,0 +1,230 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <drm/drm.h> +#include <drm/drmP.h> +#include <drm/drm_fb_helper.h> +#include <drm/drm_crtc_helper.h> + +#include "rockchip_drm_drv.h" +#include "rockchip_drm_gem.h" +#include "rockchip_drm_fb.h" + +#define PREFERRED_BPP 32 +#define to_rockchip_fbdev(x) container_of(x, struct rockchip_fbdev, helper) + +struct rockchip_fbdev { + struct drm_fb_helper helper; + struct drm_gem_object *bo; +}; + +static int rockchip_fbdev_mmap(struct fb_info *info, + struct vm_area_struct *vma) +{ + struct drm_fb_helper *helper = info->par; + struct rockchip_fbdev *fbdev = to_rockchip_fbdev(helper); + + return rockchip_gem_mmap(fbdev->bo, vma); +} + +static struct fb_ops rockchip_drm_fbdev_ops = { + .owner = THIS_MODULE, + .fb_mmap = rockchip_fbdev_mmap, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_check_var = drm_fb_helper_check_var, + .fb_set_par = drm_fb_helper_set_par, + .fb_blank = drm_fb_helper_blank, + .fb_pan_display = drm_fb_helper_pan_display, + .fb_setcmap = drm_fb_helper_setcmap, +}; + +static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes) +{ + struct rockchip_fbdev *fbdev = to_rockchip_fbdev(helper); + struct drm_mode_fb_cmd2 mode_cmd = { 0 }; + struct drm_device *dev = helper->dev; + struct rockchip_gem_object *rk_obj; + struct drm_framebuffer *fb; + unsigned int bytes_per_pixel; + unsigned long offset; + struct fb_info *fbi; + size_t size; + int ret; + + bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8); + + mode_cmd.width = sizes->surface_width; + mode_cmd.height = sizes->surface_height; + mode_cmd.pitches[0] = sizes->surface_width * bytes_per_pixel; + mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, + sizes->surface_depth); + + size = mode_cmd.pitches[0] * mode_cmd.height; + + rk_obj = rockchip_gem_create_object(dev, size); + if (IS_ERR(rk_obj)) + return -ENOMEM; + + fbdev->bo = &rk_obj->base; + + fbi = framebuffer_alloc(0, dev->dev); + if (!fbi) { + dev_err(dev->dev, "Failed to allocate framebuffer info.\n"); + ret = -ENOMEM; + goto err_rockchip_gem_free_object; + } + + helper->fb = rockchip_drm_framebuffer_init(dev, &mode_cmd, fbdev->bo); + if (IS_ERR(helper->fb)) { + dev_err(dev->dev, "Failed to allocate DRM framebuffer.\n"); + ret = PTR_ERR(helper->fb); + goto err_framebuffer_release; + } + + helper->fbdev = fbi; + + fbi->par = helper; + fbi->flags = FBINFO_FLAG_DEFAULT; + fbi->fbops = &rockchip_drm_fbdev_ops; + + ret = fb_alloc_cmap(&fbi->cmap, 256, 0); + if (ret) { + dev_err(dev->dev, "Failed to allocate color map.\n"); + goto err_drm_framebuffer_unref; + } + + fb = helper->fb; + drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth); + drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height); + + offset = fbi->var.xoffset * bytes_per_pixel; + offset += fbi->var.yoffset * fb->pitches[0]; + + dev->mode_config.fb_base = 0; + fbi->screen_base = rk_obj->kvaddr + offset; + fbi->screen_size = rk_obj->base.size; + fbi->fix.smem_len = rk_obj->base.size; + + DRM_DEBUG_KMS("FB [%dx%d]-%d kvaddr=%p offset=%ld size=%d\n", + fb->width, fb->height, fb->depth, rk_obj->kvaddr, + offset, size); + return 0; + +err_drm_framebuffer_unref: + drm_framebuffer_unreference(helper->fb); +err_framebuffer_release: + framebuffer_release(fbi); +err_rockchip_gem_free_object: + rockchip_gem_free_object(&rk_obj->base); + return ret; +} + +static struct drm_fb_helper_funcs rockchip_drm_fb_helper_funcs = { + .fb_probe = rockchip_drm_fbdev_create, +}; + +int rockchip_drm_fbdev_init(struct drm_device *dev) +{ + struct rockchip_drm_private *private = dev->dev_private; + struct rockchip_fbdev *fbdev; + struct drm_fb_helper *helper; + unsigned int num_crtc; + int ret; + + if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector) + return -EINVAL; + + if (private->fb_helper) { + DRM_ERROR("no allow to reinit fbdev\n"); + return -EINVAL; + } + + num_crtc = dev->mode_config.num_crtc; + + fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL); + if (!fbdev) + return -ENOMEM; + + fbdev->helper.funcs = &rockchip_drm_fb_helper_funcs; + helper = &fbdev->helper; + + ret = drm_fb_helper_init(dev, helper, num_crtc, ROCKCHIP_MAX_CONNECTOR); + if (ret < 0) { + dev_err(dev->dev, "Failed to initialize drm fb helper.\n"); + goto err_free; + } + + ret = drm_fb_helper_single_add_all_connectors(helper); + if (ret < 0) { + dev_err(dev->dev, "Failed to add connectors.\n"); + goto err_drm_fb_helper_fini; + } + + /* disable all the possible outputs/crtcs before entering KMS mode */ + drm_helper_disable_unused_functions(dev); + + ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP); + if (ret < 0) { + dev_err(dev->dev, "Failed to set initial hw configuration.\n"); + goto err_drm_fb_helper_fini; + } + + private->fb_helper = helper; + + return 0; + +err_drm_fb_helper_fini: + drm_fb_helper_fini(helper); +err_free: + kfree(fbdev); + return ret; +} + +void rockchip_drm_fbdev_fini(struct drm_device *dev) +{ + struct rockchip_drm_private *private = dev->dev_private; + struct drm_fb_helper *helper; + struct rockchip_fbdev *fbdev; + + if (!private || !private->fb_helper) + return; + + helper = private->fb_helper; + fbdev = to_rockchip_fbdev(helper); + + if (helper->fbdev) { + struct fb_info *info; + int ret; + + info = helper->fbdev; + ret = unregister_framebuffer(info); + if (ret < 0) + DRM_DEBUG_KMS("failed unregister_framebuffer()\n"); + + if (info->cmap.len) + fb_dealloc_cmap(&info->cmap); + + framebuffer_release(info); + } + + if (helper->fb) + drm_framebuffer_unreference(helper->fb); + + drm_fb_helper_fini(helper); + kfree(fbdev); + private->fb_helper = NULL; +} diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h new file mode 100644 index 0000000..5edcf6a --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h @@ -0,0 +1,20 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _ROCKCHIP_DRM_FBDEV_H +#define _ROCKCHIP_DRM_FBDEV_H + +int rockchip_drm_fbdev_init(struct drm_device *dev); + +#endif /* _ROCKCHIP_DRM_FBDEV_H */ diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c new file mode 100644 index 0000000..5563dff --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -0,0 +1,345 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <drm/drm.h> +#include <drm/drmP.h> +#include <drm/drm_vma_manager.h> + +#include <linux/anon_inodes.h> +#include <linux/dma-attrs.h> + +#include "rockchip_drm_drv.h" +#include "rockchip_drm_gem.h" + +static int rockchip_gem_alloc_buf(struct rockchip_gem_object *rk_obj) +{ + struct drm_gem_object *obj = &rk_obj->base; + struct drm_device *drm = obj->dev; + + init_dma_attrs(&rk_obj->dma_attrs); + dma_set_attr(DMA_ATTR_WRITE_COMBINE, &rk_obj->dma_attrs); + + /* TODO(djkurtz): Use DMA_ATTR_NO_KERNEL_MAPPING except for fbdev */ + rk_obj->kvaddr = dma_alloc_attrs(drm->dev, obj->size, + &rk_obj->dma_addr, GFP_KERNEL, + &rk_obj->dma_attrs); + if (IS_ERR(rk_obj->kvaddr)) { + int ret = PTR_ERR(rk_obj->kvaddr); + + DRM_ERROR("failed to allocate %#x byte dma buffer, %d", + obj->size, ret); + return ret; + } + + return 0; +} + +static void rockchip_gem_free_buf(struct rockchip_gem_object *rk_obj) +{ + struct drm_gem_object *obj = &rk_obj->base; + struct drm_device *drm = obj->dev; + + dma_free_attrs(drm->dev, obj->size, rk_obj->kvaddr, rk_obj->dma_addr, + &rk_obj->dma_attrs); +} + +/* drm driver mmap file operations */ +int rockchip_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) +{ + struct drm_file *priv = filp->private_data; + struct drm_device *dev = priv->minor->dev; + struct drm_gem_object *obj; + struct drm_vma_offset_node *node; + int ret; + + if (drm_device_is_unplugged(dev)) + return -ENODEV; + + mutex_lock(&dev->struct_mutex); + + node = drm_vma_offset_exact_lookup(dev->vma_offset_manager, + vma->vm_pgoff, + vma_pages(vma)); + if (!node) { + mutex_unlock(&dev->struct_mutex); + DRM_ERROR("failed to find vma node.\n"); + return -EINVAL; + } else if (!drm_vma_node_is_allowed(node, filp)) { + mutex_unlock(&dev->struct_mutex); + return -EACCES; + } + + obj = container_of(node, struct drm_gem_object, vma_node); + ret = rockchip_gem_mmap(obj, vma); + + mutex_unlock(&dev->struct_mutex); + + return ret; +} + +int rockchip_drm_gem_mmap_buffer(struct file *filp, + struct vm_area_struct *vma) +{ + struct drm_gem_object *obj = filp->private_data; + + return rockchip_gem_mmap(obj, vma); +} + +static const struct file_operations rockchip_drm_gem_fops = { + .mmap = rockchip_drm_gem_mmap_buffer, +}; + +struct rockchip_gem_object * + rockchip_gem_create_object(struct drm_device *drm, unsigned int size) +{ + struct rockchip_gem_object *rk_obj; + struct drm_gem_object *obj; + struct file *filp; + int ret; + + size = round_up(size, PAGE_SIZE); + + rk_obj = kzalloc(sizeof(*rk_obj), GFP_KERNEL); + if (!rk_obj) + return ERR_PTR(-ENOMEM); + + obj = &rk_obj->base; + + drm_gem_private_object_init(drm, obj, size); + + filp = anon_inode_getfile("rockchip_gem", &rockchip_drm_gem_fops, + obj, 0); + if (IS_ERR(filp)) { + DRM_ERROR("failed to create anon file object.\n"); + ret = PTR_ERR(filp); + goto err_free_rk_obj; + } + filp->f_mode = FMODE_READ | FMODE_WRITE; + obj->filp = filp; + + ret = drm_gem_create_mmap_offset(obj); + if (ret) + goto err_free_obj; + + ret = rockchip_gem_alloc_buf(rk_obj); + if (ret) + goto err_free_mmap_offset; + + return rk_obj; + +err_free_mmap_offset: + drm_gem_free_mmap_offset(obj); +err_free_obj: + drm_gem_object_release(obj); +err_free_rk_obj: + kfree(rk_obj); + return ERR_PTR(ret); +} + +/* + * rockchip_gem_free_object - (struct drm_driver)->gem_free_object callback + * function + */ +void rockchip_gem_free_object(struct drm_gem_object *obj) +{ + struct rockchip_gem_object *rk_obj; + + drm_gem_free_mmap_offset(obj); + + rk_obj = to_rockchip_obj(obj); + + rockchip_gem_free_buf(rk_obj); + + drm_gem_object_release(obj); + + kfree(rk_obj); +} + +int rockchip_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) +{ + struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); + struct drm_device *drm = obj->dev; + unsigned long vm_size; + + vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vm_size = vma->vm_end - vma->vm_start; + + if (vm_size > obj->size) + return -EINVAL; + + return dma_mmap_attrs(drm->dev, vma, rk_obj->kvaddr, rk_obj->dma_addr, + obj->size, &rk_obj->dma_attrs); +} + +/* + * rockchip_gem_create_with_handle - allocate an object with the given + * size and create a gem handle on it + * + * returns a struct rockchip_gem_object* on success or ERR_PTR values + * on failure. + */ +static struct rockchip_gem_object * +rockchip_gem_create_with_handle(struct drm_file *file_priv, + struct drm_device *drm, unsigned int size, + unsigned int *handle) +{ + struct rockchip_gem_object *rk_obj; + struct drm_gem_object *obj; + int ret; + + rk_obj = rockchip_gem_create_object(drm, size); + if (IS_ERR(rk_obj)) + return NULL; + + obj = &rk_obj->base; + + /* + * allocate a id of idr table where the obj is registered + * and handle has the id what user can see. + */ + ret = drm_gem_handle_create(file_priv, obj, handle); + if (ret) + goto err_handle_create; + + /* drop reference from allocate - handle holds it now. */ + drm_gem_object_unreference_unlocked(obj); + + return rk_obj; + +err_handle_create: + rockchip_gem_free_object(obj); + + return ERR_PTR(ret); +} + +int rockchip_gem_dumb_map_offset(struct drm_file *file_priv, + struct drm_device *dev, uint32_t handle, + uint64_t *offset) +{ + struct drm_gem_object *obj; + int ret = 0; + + mutex_lock(&dev->struct_mutex); + + /* + * get offset of memory allocated for drm framebuffer. + * - this callback would be called by user application + * with DRM_IOCTL_MODE_MAP_DUMB command. + */ + + obj = drm_gem_object_lookup(dev, file_priv, handle); + if (!obj) { + DRM_ERROR("failed to lookup gem object.\n"); + ret = -EINVAL; + goto unlock; + } + + ret = drm_gem_create_mmap_offset(obj); + if (ret) + goto out; + + *offset = drm_vma_node_offset_addr(&obj->vma_node); + DRM_DEBUG_KMS("offset = 0x%lx\n", (unsigned long)*offset); + +out: + drm_gem_object_unreference(obj); +unlock: + mutex_unlock(&dev->struct_mutex); + return ret; +} + +/* + * rockchip_gem_dumb_create - (struct drm_driver)->dumb_create callback + * function + * + * This aligns the pitch and size arguments to the minimum required. wrap + * this into your own function if you need bigger alignment. + */ +int rockchip_gem_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args) +{ + struct rockchip_gem_object *rk_obj; + int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); + + /* + * align to 64 bytes since Mali requires it. + */ + min_pitch = ((min_pitch + 63) / 64) * 64; + + if (args->pitch < min_pitch) + args->pitch = min_pitch; + + if (args->size < args->pitch * args->height) + args->size = args->pitch * args->height; + + rk_obj = rockchip_gem_create_with_handle(file_priv, dev, args->size, + &args->handle); + + return PTR_ERR_OR_ZERO(rk_obj); +} + +/* + * Allocate a sg_table for this GEM object. + * Note: Both the table's contents, and the sg_table itself must be freed by + * the caller. + * Returns a pointer to the newly allocated sg_table, or an ERR_PTR() error. + */ +struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj) +{ + struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); + struct drm_device *drm = obj->dev; + struct sg_table *sgt = NULL; + int ret; + + sgt = kzalloc(sizeof(*sgt), GFP_KERNEL); + if (!sgt) + return ERR_PTR(-ENOMEM); + + ret = dma_get_sgtable_attrs(drm->dev, sgt, rk_obj->kvaddr, + rk_obj->dma_addr, obj->size, + &rk_obj->dma_attrs); + if (ret) { + DRM_ERROR("failed to allocate sgt, %d\n", ret); + kfree(sgt); + return ERR_PTR(ret); + } + + return sgt; +} + +void *rockchip_gem_prime_vmap(struct drm_gem_object *obj) +{ + struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); + + return rk_obj->kvaddr; +} + +void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) +{ + /* Nothing to do */ +} + +int rockchip_gem_prime_mmap(struct drm_gem_object *obj, + struct vm_area_struct *vma) +{ + struct drm_device *dev = obj->dev; + int ret; + + mutex_lock(&dev->struct_mutex); + ret = drm_gem_mmap_obj(obj, obj->size, vma); + mutex_unlock(&dev->struct_mutex); + + return ret; +} diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h new file mode 100644 index 0000000..e37b921 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _ROCKCHIP_DRM_GEM_H +#define _ROCKCHIP_DRM_GEM_H + +#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base) + +struct rockchip_gem_object { + struct drm_gem_object base; + unsigned int flags; + + void *kvaddr; + dma_addr_t dma_addr; + struct dma_attrs dma_attrs; +}; + +struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj); +struct drm_gem_object * +rockchip_gem_prime_import_sg_table(struct drm_device *dev, size_t size, + struct sg_table *sgt); +void *rockchip_gem_prime_vmap(struct drm_gem_object *obj); +void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); +int rockchip_gem_prime_mmap(struct drm_gem_object *obj, + struct vm_area_struct *vma); + +/* drm driver mmap file operations */ +int rockchip_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); + +/* mmap a gem object to userspace. */ +int rockchip_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); + +struct rockchip_gem_object * + rockchip_gem_create_object(struct drm_device *drm, unsigned int size); + +void rockchip_gem_free_object(struct drm_gem_object *obj); + +int rockchip_gem_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args); +int rockchip_gem_dumb_map_offset(struct drm_file *file_priv, + struct drm_device *dev, uint32_t handle, + uint64_t *offset); +#endif /* _ROCKCHIP_DRM_GEM_H */ diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c new file mode 100644 index 0000000..fe9d2b0 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -0,0 +1,1422 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <drm/drm.h> +#include <drm/drmP.h> +#include <drm/drm_crtc.h> +#include <drm/drm_crtc_helper.h> + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/pm_runtime.h> +#include <linux/component.h> + +#include <linux/reset.h> +#include <linux/iommu.h> +#include <linux/delay.h> + +#include <video/of_display_timing.h> +#include <video/of_videomode.h> + +#include "rockchip_drm_drv.h" +#include "rockchip_drm_fbdev.h" +#include "rockchip_drm_gem.h" +#include "rockchip_drm_fb.h" +#include "rockchip_drm_vop.h" + +#define VOP_DEFAULT_FRAMERATE 60 +#define VOP_MAX_WIN_SUPPORT 5 +#define VOP_DEFAULT_PRIMARY 0 +#define VOP_DEFAULT_CURSOR 1 +#define VOP_REG(off, _mask, s) \ + {.offset = off, \ + .mask = _mask, \ + .shift = s,} + +#define __REG_SET(x, off, mask, shift, v) \ + vop_mask_write(x, off, (mask) << shift, (v) << shift) + +#define REG_SET(x, base, reg, v) \ + __REG_SET(x, base + reg.offset, reg.mask, reg.shift, v) + +#define VOP_WIN_SET(x, win, name, v) \ + REG_SET(x, win->base, win->phy->name, v) +#define VOP_CTRL_SET(x, name, v) \ + REG_SET(x, 0, (x)->data->ctrl->name, v) + +#define VOP_WIN_GET_YRGBADDR(ctx, win) \ + vop_readl(ctx, win->base + win->phy->yrgb_mst.offset) + +#define to_vop_ctx(x) container_of(x, struct vop_context, crtc) +#define to_rockchip_plane(x) container_of(x, struct rockchip_plane, base) + +struct rockchip_plane { + int id; + struct drm_plane base; + const struct vop_win *win; + + uint32_t pending_yrgb_mst; + struct drm_framebuffer *front_fb; + struct drm_framebuffer *pending_fb; + bool enabled; +}; + +struct vop_context { + struct device *dev; + struct drm_device *drm_dev; + struct drm_crtc crtc; + struct drm_pending_vblank_event *event; + struct vop_driver *drv; + unsigned int dpms; + unsigned int win_mask; + wait_queue_head_t wait_vsync_queue; + atomic_t wait_vsync_event; + + struct workqueue_struct *vsync_wq; + struct work_struct vsync_work; + + /* mutex vsync_ work */ + struct mutex vsync_mutex; + bool vsync_work_pending; + + struct vop_driver_data *data; + + uint32_t *regsbak; + void __iomem *regs; + + /* physical map length of vop register */ + uint32_t len; + + /* one time only one process allowed to config the register */ + spinlock_t reg_lock; + /* lock vop irq reg */ + spinlock_t irq_lock; + + unsigned int irq; + + /* vop AHP clk */ + struct clk *hclk; + /* vop dclk */ + struct clk *dclk; + /* vop share memory frequency */ + struct clk *aclk; + + /* vop ahb reset */ + struct reset_control *ahb_rst; + /* vop dclk reset */ + struct reset_control *dclk_rst; + uint32_t pixclock; + + int pipe; + bool clk_on; +}; + +enum vop_data_format { + VOP_FMT_ARGB8888 = 0, + VOP_FMT_RGB888, + VOP_FMT_RGB565, + VOP_FMT_YUV420SP = 4, + VOP_FMT_YUV422SP, + VOP_FMT_YUV444SP, +}; + +struct vop_reg_data { + uint32_t offset; + uint32_t value; +}; + +struct vop_reg { + uint32_t offset; + uint32_t shift; + uint32_t mask; +}; + +struct vop_ctrl { + struct vop_reg standby; + struct vop_reg data_blank; + struct vop_reg gate_en; + struct vop_reg mmu_en; + struct vop_reg rgb_en; + struct vop_reg edp_en; + struct vop_reg hdmi_en; + struct vop_reg mipi_en; + struct vop_reg out_mode; + struct vop_reg dither_down; + struct vop_reg dither_up; + struct vop_reg pin_pol; + + struct vop_reg htotal_pw; + struct vop_reg hact_st_end; + struct vop_reg vtotal_pw; + struct vop_reg vact_st_end; + struct vop_reg hpost_st_end; + struct vop_reg vpost_st_end; +}; + +struct vop_win_phy { + const uint32_t *data_formats; + uint32_t nformats; + + struct vop_reg enable; + struct vop_reg format; + struct vop_reg act_info; + struct vop_reg dsp_info; + struct vop_reg dsp_st; + struct vop_reg yrgb_mst; + struct vop_reg uv_mst; + struct vop_reg yrgb_vir; + struct vop_reg uv_vir; + + struct vop_reg dst_alpha_ctl; + struct vop_reg src_alpha_ctl; +}; + +struct vop_win { + uint32_t base; + const struct vop_win_phy *phy; +}; + +struct vop_driver_data { + const void *init_table; + int table_size; + const struct vop_ctrl *ctrl; + const struct vop_win *win[VOP_MAX_WIN_SUPPORT]; +}; + +static const uint32_t formats_01[] = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_RGB888, + DRM_FORMAT_RGB565, + DRM_FORMAT_NV12, + DRM_FORMAT_NV16, + DRM_FORMAT_NV24, +}; + +static const uint32_t formats_234[] = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_RGB888, + DRM_FORMAT_RGB565, +}; + +static const struct vop_win_phy win01_data = { + .data_formats = formats_01, + .nformats = ARRAY_SIZE(formats_01), + .enable = VOP_REG(WIN0_CTRL0, 0x1, 0), + .format = VOP_REG(WIN0_CTRL0, 0x7, 1), + .act_info = VOP_REG(WIN0_ACT_INFO, 0x1fff1fff, 0), + .dsp_info = VOP_REG(WIN0_DSP_INFO, 0x1fff1fff, 0), + .dsp_st = VOP_REG(WIN0_DSP_ST, 0x1fff1fff, 0), + .yrgb_mst = VOP_REG(WIN0_YRGB_MST, 0xffffffff, 0), + .uv_mst = VOP_REG(WIN0_CBR_MST, 0xffffffff, 0), + .yrgb_vir = VOP_REG(WIN0_VIR, 0x3fff, 0), + .uv_vir = VOP_REG(WIN0_VIR, 0x3fff, 16), + .src_alpha_ctl = VOP_REG(WIN0_SRC_ALPHA_CTRL, 0xff, 0), + .dst_alpha_ctl = VOP_REG(WIN0_DST_ALPHA_CTRL, 0xff, 0), +}; + +static const struct vop_win_phy win23_data = { + .data_formats = formats_234, + .nformats = ARRAY_SIZE(formats_234), + .enable = VOP_REG(WIN2_CTRL0, 0x1, 0), + .format = VOP_REG(WIN2_CTRL0, 0x7, 1), + .dsp_info = VOP_REG(WIN2_DSP_INFO0, 0x0fff0fff, 0), + .dsp_st = VOP_REG(WIN2_DSP_ST0, 0x1fff1fff, 0), + .yrgb_mst = VOP_REG(WIN2_MST0, 0xffffffff, 0), + .yrgb_vir = VOP_REG(WIN2_VIR0_1, 0x1fff, 0), + .src_alpha_ctl = VOP_REG(WIN2_SRC_ALPHA_CTRL, 0xff, 0), + .dst_alpha_ctl = VOP_REG(WIN2_DST_ALPHA_CTRL, 0xff, 0), +}; + +static const struct vop_win_phy cursor_data = { + .data_formats = formats_234, + .nformats = ARRAY_SIZE(formats_234), + .enable = VOP_REG(HWC_CTRL0, 0x1, 0), + .format = VOP_REG(HWC_CTRL0, 0x7, 1), + .dsp_st = VOP_REG(HWC_DSP_ST, 0x1fff1fff, 0), + .yrgb_mst = VOP_REG(HWC_MST, 0xffffffff, 0), +}; + +static const struct vop_win win0 = { + .base = 0, + .phy = &win01_data, +}; + +static const struct vop_win win1 = { + .base = 0x40, + .phy = &win01_data, +}; + +static const struct vop_win win2 = { + .base = 0, + .phy = &win23_data, +}; + +static const struct vop_win win3 = { + .base = 0x50, + .phy = &win23_data, +}; + +static const struct vop_win win_cursor = { + .base = 0, + .phy = &cursor_data, +}; + +static const struct vop_ctrl ctrl_data = { + .standby = VOP_REG(SYS_CTRL, 0x1, 22), + .gate_en = VOP_REG(SYS_CTRL, 0x1, 23), + .mmu_en = VOP_REG(SYS_CTRL, 0x1, 20), + .rgb_en = VOP_REG(SYS_CTRL, 0x1, 12), + .hdmi_en = VOP_REG(SYS_CTRL, 0x1, 13), + .edp_en = VOP_REG(SYS_CTRL, 0x1, 14), + .mipi_en = VOP_REG(SYS_CTRL, 0x1, 15), + .dither_down = VOP_REG(DSP_CTRL1, 0xf, 1), + .dither_up = VOP_REG(DSP_CTRL1, 0x1, 6), + .data_blank = VOP_REG(DSP_CTRL0, 0x1, 19), + .out_mode = VOP_REG(DSP_CTRL0, 0xf, 0), + .pin_pol = VOP_REG(DSP_CTRL0, 0xf, 4), + .htotal_pw = VOP_REG(DSP_HTOTAL_HS_END, 0x1fff1fff, 0), + .hact_st_end = VOP_REG(DSP_HACT_ST_END, 0x1fff1fff, 0), + .vtotal_pw = VOP_REG(DSP_VTOTAL_VS_END, 0x1fff1fff, 0), + .vact_st_end = VOP_REG(DSP_VACT_ST_END, 0x1fff1fff, 0), + .hpost_st_end = VOP_REG(POST_DSP_HACT_INFO, 0x1fff1fff, 0), + .vpost_st_end = VOP_REG(POST_DSP_VACT_INFO, 0x1fff1fff, 0), +}; + +static const struct vop_reg_data vop_init_reg_table[] = { + {SYS_CTRL, 0x00801000}, + {DSP_CTRL0, 0x00000000}, + {WIN0_CTRL0, 0x00000080}, + {WIN1_CTRL0, 0x00000080}, +}; + +static const struct vop_driver_data rockchip_rk3288_vop = { + .init_table = vop_init_reg_table, + .table_size = ARRAY_SIZE(vop_init_reg_table), + .ctrl = &ctrl_data, + .win[0] = &win0, + .win[1] = &win1, + .win[2] = &win2, + .win[3] = &win3, + .win[4] = &win_cursor, +}; + +static const struct of_device_id vop_driver_dt_match[] = { + { .compatible = "rockchip,rk3288-vop", + .data = (void *)&rockchip_rk3288_vop }, + {}, +}; + +static inline void vop_writel(struct vop_context *ctx, + uint32_t offset, uint32_t v) +{ + writel(v, ctx->regs + offset); + ctx->regsbak[offset >> 2] = v; +} + +static inline uint32_t vop_readl(struct vop_context *ctx, uint32_t offset) +{ + return readl(ctx->regs + offset); +} + +static inline void vop_cfg_done(struct vop_context *ctx) +{ + writel(0x01, ctx->regs + REG_CFG_DONE); +} + +static inline void vop_mask_write(struct vop_context *ctx, + uint32_t offset, uint32_t mask, uint32_t v) +{ + if (mask) { + uint32_t cached_val = ctx->regsbak[offset >> 2]; + + cached_val = (cached_val & ~mask) | v; + writel(cached_val, ctx->regs + offset); + ctx->regsbak[offset >> 2] = cached_val; + } +} + +static inline struct vop_driver_data *vop_get_driver_data(struct device *dev) +{ + const struct of_device_id *of_id = + of_match_device(vop_driver_dt_match, dev); + + return (struct vop_driver_data *)of_id->data; +} + +static enum vop_data_format vop_convert_format(uint32_t format) +{ + switch (format) { + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ARGB8888: + return VOP_FMT_ARGB8888; + case DRM_FORMAT_RGB888: + return VOP_FMT_RGB888; + case DRM_FORMAT_RGB565: + return VOP_FMT_RGB565; + case DRM_FORMAT_NV12: + return VOP_FMT_YUV420SP; + case DRM_FORMAT_NV16: + return VOP_FMT_YUV422SP; + case DRM_FORMAT_NV24: + return VOP_FMT_YUV444SP; + default: + DRM_ERROR("unsupport format[%08x]\n", format); + return -EINVAL; + } +} + +static bool is_alpha_support(uint32_t format) +{ + switch (format) { + case DRM_FORMAT_ARGB8888: + return true; + default: + return false; + } +} + +/* TODO(djkurtz): move generic 'setup slave rk_iommu' code somewhere common */ +static int vop_iommu_init(struct vop_context *ctx) +{ + struct device *dev = ctx->dev; + struct device_node *np = dev->of_node; + struct platform_device *pd; + int count; + int ret; + struct of_phandle_args args; + + /* Each VOP must have exactly one iommu node, with no args */ + count = of_count_phandle_with_args(np, "iommus", "#iommu-cells"); + if (count != 1) { + dev_err(dev, "of_count_phandle_with_args(%s) => %d\n", + np->full_name, count); + return -EINVAL; + } + + ret = of_parse_phandle_with_args(np, "iommus", "#iommu-cells", 0, + &args); + if (ret) { + dev_err(dev, "of_parse_phandle_with_args(%s) => %d\n", + np->full_name, ret); + return ret; + } + if (args.args_count != 0) { + dev_err(dev, "incorrect number of iommu params found for %s (found %d, expected 0)\n", + args.np->full_name, args.args_count); + return -EINVAL; + } + + pd = of_find_device_by_node(args.np); + of_node_put(args.np); + if (!pd) { + dev_err(dev, "iommu %s not found\n", args.np->full_name); + return -EPROBE_DEFER; + } + + /* TODO(djkurtz): handle multiple slave iommus for a single master */ + dev->archdata.iommu = &pd->dev; + + ret = rockchip_drm_dma_attach_device(ctx->drm_dev, dev); + if (ret) { + dev_err(dev, "failed to attach to drm dma mapping, %d\n", ret); + return ret; + } + + return 0; +} + +static void vop_iommu_fini(struct vop_context *ctx) +{ + rockchip_drm_dma_detach_device(ctx->drm_dev, ctx->dev); +} + +static int vop_clk_enable(struct vop_context *ctx) +{ + int ret; + + if (!ctx->clk_on) { + ret = clk_enable(ctx->hclk); + if (ret < 0) { + dev_err(ctx->dev, "failed to enable hclk\n"); + return ret; + } + + ret = clk_enable(ctx->dclk); + if (ret < 0) { + dev_err(ctx->dev, "failed to enable dclk\n"); + goto err_dclk; + } + + ret = clk_enable(ctx->aclk); + if (ret < 0) { + dev_err(ctx->dev, "failed to enable aclk\n"); + goto err_aclk; + } + ctx->clk_on = true; + } + + return ret; +err_aclk: + clk_disable(ctx->aclk); +err_dclk: + clk_disable(ctx->dclk); + return ret; +} + +static void vop_clk_disable(struct vop_context *ctx) +{ + if (ctx->clk_on) { + clk_disable(ctx->aclk); + clk_disable(ctx->dclk); + clk_disable(ctx->hclk); + ctx->clk_on = false; + } +} + +static void vop_power_on(struct vop_context *ctx) +{ + if (vop_clk_enable(ctx) < 0) { + dev_err(ctx->dev, "failed to enable clks\n"); + return; + } + + spin_lock(&ctx->reg_lock); + + VOP_CTRL_SET(ctx, standby, 0); + + spin_unlock(&ctx->reg_lock); +} + +static void vop_power_off(struct vop_context *ctx) +{ + spin_lock(&ctx->reg_lock); + + VOP_CTRL_SET(ctx, standby, 1); + + spin_unlock(&ctx->reg_lock); + + vop_clk_disable(ctx); +} + +/* + * @start: starting pixel in screen coordinates + * @length: length of buffer "row" in pixels + * @end: one pixel past end of buffer in screen coordinates + * @last: width of screen, or one pixel past end of screen + * @size: number of pixels of buffer to display on scree + */ +static int rockchip_plane_get_size(int start, unsigned length, unsigned last) +{ + int end = start + length; + int size = 0; + + if (start <= 0) { + if (end > 0) + size = min_t(unsigned, end, last); + } else if (start < last) { + size = min_t(unsigned, last - start, length); + } + + return size; +} + +static int rockchip_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, + struct drm_framebuffer *fb, int crtc_x, + int crtc_y, unsigned int crtc_w, + unsigned int crtc_h, uint32_t src_x, + uint32_t src_y, uint32_t src_w, uint32_t src_h) +{ + struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane); + const struct vop_win *win = rockchip_plane->win; + struct vop_context *ctx = to_vop_ctx(crtc); + struct drm_gem_object *obj; + struct rockchip_gem_object *rk_obj; + unsigned long offset; + unsigned int actual_w; + unsigned int actual_h; + unsigned int dsp_stx; + unsigned int dsp_sty; + unsigned int y_vir_stride; + dma_addr_t yrgb_mst; + enum vop_data_format format; + uint32_t val; + bool is_alpha; + + src_w >>= 16; + src_h >>= 16; + src_x >>= 16; + src_y >>= 16; + + if (crtc_w != src_w || crtc_h != src_h) + return -EINVAL; + + actual_w = rockchip_plane_get_size(crtc_x, + crtc_w, crtc->mode.hdisplay); + actual_h = rockchip_plane_get_size(crtc_y, + crtc_h, crtc->mode.vdisplay); + if (!actual_w || !actual_h) + return -EINVAL; + + if (crtc_x < 0) { + if (actual_w) + src_x -= crtc_x; + crtc_x = 0; + } + + if (crtc_y < 0) { + if (actual_h) + src_y -= crtc_y; + crtc_y = 0; + } + + is_alpha = is_alpha_support(fb->pixel_format); + format = vop_convert_format(fb->pixel_format); + if (format < 0) + return format; + + obj = rockchip_fb_get_gem_obj(fb, 0); + if (!obj) { + DRM_ERROR("fail to get rockchip gem object from framebuffer\n"); + return -EINVAL; + } + + rk_obj = to_rockchip_obj(obj); + + yrgb_mst = rk_obj->dma_addr; + + dsp_stx = crtc_x + crtc->mode.htotal - crtc->mode.hsync_start; + dsp_sty = crtc_y + crtc->mode.vtotal - crtc->mode.vsync_start; + + offset = src_x * (fb->bits_per_pixel >> 3); + offset += src_y * fb->pitches[0]; + + y_vir_stride = fb->pitches[0] / (fb->bits_per_pixel >> 3); + + spin_lock(&ctx->reg_lock); + + VOP_WIN_SET(ctx, win, format, format); + VOP_WIN_SET(ctx, win, yrgb_vir, y_vir_stride); + yrgb_mst += offset; + VOP_WIN_SET(ctx, win, yrgb_mst, yrgb_mst); + val = ((actual_h - 1) & 0xffff) << 16; + val |= (actual_w - 1) & 0xffff; + VOP_WIN_SET(ctx, win, act_info, val); + VOP_WIN_SET(ctx, win, dsp_info, val); + val = ((dsp_sty - 1) & 0xffff) << 16; + val |= (dsp_stx - 1) & 0xffff; + VOP_WIN_SET(ctx, win, dsp_st, val); + + if (is_alpha) { + VOP_WIN_SET(ctx, win, dst_alpha_ctl, + DST_FACTOR_M0(ALPHA_SRC_INVERSE)); + val = SRC_ALPHA_EN(1) | SRC_COLOR_M0(ALPHA_SRC_PRE_MUL) | + SRC_ALPHA_M0(ALPHA_STRAIGHT) | + SRC_BLEND_M0(ALPHA_PER_PIX) | + SRC_ALPHA_CAL_M0(ALPHA_NO_SATURATION) | + SRC_FACTOR_M0(ALPHA_ONE); + VOP_WIN_SET(ctx, win, src_alpha_ctl, val); + } else { + VOP_WIN_SET(ctx, win, src_alpha_ctl, SRC_ALPHA_EN(0)); + } + + VOP_WIN_SET(ctx, win, enable, 1); + + spin_unlock(&ctx->reg_lock); + + mutex_lock(&ctx->vsync_mutex); + + /* + * Because the buffer set to vop take effect at frame start time, + * we need make sure old buffer is not in use before we release + * it. + * reference the framebuffer, and unference it when it swap out of vop. + */ + if (fb != rockchip_plane->front_fb) { + drm_framebuffer_reference(fb); + if (rockchip_plane->pending_fb) + drm_framebuffer_unreference(rockchip_plane->pending_fb); + rockchip_plane->pending_fb = fb; + rockchip_plane->pending_yrgb_mst = yrgb_mst; + ctx->vsync_work_pending = true; + } + rockchip_plane->enabled = true; + + mutex_unlock(&ctx->vsync_mutex); + + spin_lock(&ctx->reg_lock); + vop_cfg_done(ctx); + spin_unlock(&ctx->reg_lock); + + return 0; +} + +#define rockchip_update_plane_helper(plane, crtc, fb, x, y) \ + rockchip_update_plane(plane, crtc, fb, 0, 0, \ + (fb)->width, (fb)->height, \ + (x) << 16, (y) << 16, \ + (fb)->width << 16, (fb)->height << 16) + +static int rockchip_disable_plane(struct drm_plane *plane) +{ + struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane); + const struct vop_win *win = rockchip_plane->win; + struct vop_context *ctx; + + if (!plane->crtc) + return 0; + + ctx = to_vop_ctx(plane->crtc); + spin_lock(&ctx->reg_lock); + + VOP_WIN_SET(ctx, win, enable, 0); + vop_cfg_done(ctx); + + spin_unlock(&ctx->reg_lock); + + mutex_lock(&ctx->vsync_mutex); + + /* + * clear the pending framebuffer and set vsync_work_pending true, + * so that the framebuffer will unref at the next vblank. + */ + if (rockchip_plane->pending_fb) { + drm_framebuffer_unreference(rockchip_plane->pending_fb); + rockchip_plane->pending_fb = NULL; + } + + rockchip_plane->enabled = false; + ctx->vsync_work_pending = true; + + mutex_unlock(&ctx->vsync_mutex); + + return 0; +} + +static void rockchip_plane_destroy(struct drm_plane *plane) +{ + struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane); + struct vop_context *ctx = to_vop_ctx(plane->crtc); + + rockchip_disable_plane(plane); + drm_plane_cleanup(plane); + ctx->win_mask &= ~(1 << rockchip_plane->id); + kfree(rockchip_plane); +} + +static const struct drm_plane_funcs rockchip_plane_funcs = { + .update_plane = rockchip_update_plane, + .disable_plane = rockchip_disable_plane, + .destroy = rockchip_plane_destroy, +}; + +static struct drm_plane *rockchip_plane_init(struct vop_context *ctx, + unsigned long possible_crtcs, + enum drm_plane_type type, + int index) +{ + struct rockchip_plane *rockchip_plane; + struct vop_driver_data *vop_data = ctx->data; + const struct vop_win *win; + int err; + + if (index >= VOP_MAX_WIN_SUPPORT) + return ERR_PTR(-EINVAL); + + rockchip_plane = kzalloc(sizeof(*rockchip_plane), GFP_KERNEL); + if (!rockchip_plane) + return ERR_PTR(-ENOMEM); + + win = vop_data->win[index]; + ctx->win_mask |= (1 << index); + rockchip_plane->id = index; + rockchip_plane->win = win; + + err = drm_universal_plane_init(ctx->drm_dev, &rockchip_plane->base, + possible_crtcs, &rockchip_plane_funcs, + win->phy->data_formats, + win->phy->nformats, type); + if (err) { + DRM_ERROR("failed to initialize plane\n"); + kfree(rockchip_plane); + return ERR_PTR(err); + } + + return &rockchip_plane->base; +} + +int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type) +{ + struct vop_context *ctx = to_vop_ctx(crtc); + + if (ctx->dpms != DRM_MODE_DPMS_ON) + return -EPERM; + + switch (connector_type) { + case DRM_MODE_CONNECTOR_LVDS: + VOP_CTRL_SET(ctx, rgb_en, 1); + VOP_CTRL_SET(ctx, out_mode, ROCKCHIP_OUT_MODE_P888); + break; + case DRM_MODE_CONNECTOR_eDP: + VOP_CTRL_SET(ctx, edp_en, 1); + VOP_CTRL_SET(ctx, out_mode, ROCKCHIP_OUT_MODE_AAAA); + break; + case DRM_MODE_CONNECTOR_HDMIA: + VOP_CTRL_SET(ctx, out_mode, ROCKCHIP_OUT_MODE_AAAA); + VOP_CTRL_SET(ctx, hdmi_en, 1); + break; + default: + DRM_ERROR("unsupport connector_type[%d]\n", connector_type); + return -EINVAL; + }; + + return 0; +} + +int rockchip_drm_crtc_enable_vblank(struct drm_device *dev, int pipe) +{ + struct vop_context *ctx = to_vop_ctx(rockchip_drm_find_crtc(dev, pipe)); + unsigned long flags; + + if (ctx->dpms != DRM_MODE_DPMS_ON) + return -EPERM; + + spin_lock_irqsave(&ctx->irq_lock, flags); + + vop_mask_write(ctx, INTR_CTRL0, LINE_FLAG_INTR_MASK, + LINE_FLAG_INTR_EN(1)); + + spin_unlock_irqrestore(&ctx->irq_lock, flags); + + return 0; +} + +void rockchip_drm_crtc_disable_vblank(struct drm_device *dev, int pipe) +{ + struct vop_context *ctx = to_vop_ctx(rockchip_drm_find_crtc(dev, pipe)); + unsigned long flags; + + if (ctx->dpms != DRM_MODE_DPMS_ON) + return; + spin_lock_irqsave(&ctx->irq_lock, flags); + vop_mask_write(ctx, INTR_CTRL0, LINE_FLAG_INTR_MASK, + LINE_FLAG_INTR_EN(0)); + spin_unlock_irqrestore(&ctx->irq_lock, flags); +} + +static void rockchip_drm_crtc_dpms(struct drm_crtc *crtc, int mode) +{ + struct vop_context *ctx = to_vop_ctx(crtc); + + DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode); + + if (ctx->dpms == mode) { + DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n"); + return; + } + if (mode > DRM_MODE_DPMS_ON) { + /* wait for the completion of page flip. */ + if (!wait_event_timeout(ctx->wait_vsync_queue, + !atomic_read(&ctx->wait_vsync_event), + HZ/20)) + DRM_DEBUG_KMS("vblank wait timed out.\n"); + drm_vblank_off(crtc->dev, ctx->pipe); + } + + switch (mode) { + case DRM_MODE_DPMS_ON: + vop_power_on(ctx); + break; + case DRM_MODE_DPMS_STANDBY: + case DRM_MODE_DPMS_SUSPEND: + case DRM_MODE_DPMS_OFF: + vop_power_off(ctx); + break; + default: + DRM_DEBUG_KMS("unspecified mode %d\n", mode); + break; + } + + ctx->dpms = mode; +} + +static void rockchip_drm_crtc_prepare(struct drm_crtc *crtc) +{ + rockchip_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON); +} + +static bool rockchip_drm_crtc_mode_fixup(struct drm_crtc *crtc, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0) + return false; + + return true; +} + +static int rockchip_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, + struct drm_framebuffer *old_fb); + +static int rockchip_drm_crtc_mode_set(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode, + int x, int y, + struct drm_framebuffer *fb) +{ + struct vop_context *ctx = to_vop_ctx(crtc); + u16 hsync_len = adjusted_mode->hsync_end - adjusted_mode->hsync_start; + u16 hdisplay = adjusted_mode->hdisplay; + u16 htotal = adjusted_mode->htotal; + u16 hact_st = adjusted_mode->htotal - adjusted_mode->hsync_start; + u16 hact_end = hact_st + hdisplay; + u16 vdisplay = adjusted_mode->vdisplay; + u16 vtotal = adjusted_mode->vtotal; + u16 vsync_len = adjusted_mode->vsync_end - adjusted_mode->vsync_start; + u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start; + u16 vact_end = vact_st + vdisplay; + unsigned long flags; + int ret; + uint32_t val; + + clk_disable(ctx->dclk); + + ret = rockchip_drm_crtc_mode_set_base(crtc, x, y, fb); + if (ret) + return ret; + + val = 0x8; + val |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 1 : 0; + val |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? (1 << 1) : 0; + VOP_CTRL_SET(ctx, pin_pol, val); + + VOP_CTRL_SET(ctx, htotal_pw, (htotal << 16) | hsync_len); + val = hact_st << 16; + val |= hact_end; + VOP_CTRL_SET(ctx, hact_st_end, val); + VOP_CTRL_SET(ctx, hpost_st_end, val); + + VOP_CTRL_SET(ctx, vtotal_pw, (vtotal << 16) | vsync_len); + val = vact_st << 16; + val |= vact_end; + VOP_CTRL_SET(ctx, vact_st_end, val); + VOP_CTRL_SET(ctx, vpost_st_end, val); + + spin_lock_irqsave(&ctx->irq_lock, flags); + + vop_mask_write(ctx, INTR_CTRL0, DSP_LINE_NUM_MASK, + DSP_LINE_NUM(vact_end)); + + spin_unlock_irqrestore(&ctx->irq_lock, flags); + + /* + * do dclk_reset, let all config take affect, so new clk will safely + * run in correct frame. + */ + reset_control_assert(ctx->dclk_rst); + usleep_range(10, 20); + reset_control_deassert(ctx->dclk_rst); + + clk_set_rate(ctx->dclk, adjusted_mode->clock * 1000); + clk_enable(ctx->dclk); + + return 0; +} + +static int rockchip_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, + struct drm_framebuffer *old_fb) +{ + int ret; + + ret = rockchip_update_plane_helper(crtc->primary, crtc, + crtc->primary->fb, x, y); + if (ret < 0) { + DRM_ERROR("fail to update plane\n"); + return ret; + } + + return 0; +} + +static void rockchip_drm_crtc_commit(struct drm_crtc *crtc) +{ + /* just do dummy now */ +} + +static const struct drm_crtc_helper_funcs rockchip_crtc_helper_funcs = { + .dpms = rockchip_drm_crtc_dpms, + .prepare = rockchip_drm_crtc_prepare, + .mode_fixup = rockchip_drm_crtc_mode_fixup, + .mode_set = rockchip_drm_crtc_mode_set, + .mode_set_base = rockchip_drm_crtc_mode_set_base, + .commit = rockchip_drm_crtc_commit, +}; + +static int rockchip_drm_crtc_page_flip(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + struct drm_pending_vblank_event *event, + uint32_t page_flip_flags) +{ + struct drm_device *dev = crtc->dev; + struct vop_context *ctx = to_vop_ctx(crtc); + struct drm_framebuffer *old_fb = crtc->primary->fb; + int ret; + + /* when the page flip is requested, crtc's dpms should be on */ + if (ctx->dpms > DRM_MODE_DPMS_ON) { + DRM_DEBUG("failed page flip request at dpms[%d].\n", ctx->dpms); + return 0; + } + + ret = drm_vblank_get(dev, ctx->pipe); + if (ret) { + DRM_DEBUG("failed to acquire vblank counter\n"); + return ret; + } + + spin_lock_irq(&dev->event_lock); + if (ctx->event) { + spin_unlock_irq(&dev->event_lock); + DRM_ERROR("already pending flip!\n"); + return -EBUSY; + } + ctx->event = event; + atomic_set(&ctx->wait_vsync_event, 1); + spin_unlock_irq(&dev->event_lock); + + crtc->primary->fb = fb; + + ret = rockchip_update_plane_helper(crtc->primary, crtc, fb, + crtc->x, crtc->y); + if (ret) { + crtc->primary->fb = old_fb; + + spin_lock_irq(&dev->event_lock); + drm_vblank_put(dev, ctx->pipe); + atomic_set(&ctx->wait_vsync_event, 0); + ctx->event = NULL; + spin_unlock_irq(&dev->event_lock); + } + + return ret; +} + +static void rockchip_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe) +{ + struct rockchip_drm_private *dev_priv = dev->dev_private; + struct drm_crtc *drm_crtc = dev_priv->crtc[pipe]; + struct vop_context *ctx; + unsigned long flags; + + ctx = to_vop_ctx(drm_crtc); + + spin_lock_irqsave(&dev->event_lock, flags); + + if (ctx->event) { + drm_send_vblank_event(dev, -1, ctx->event); + drm_vblank_put(dev, pipe); + atomic_set(&ctx->wait_vsync_event, 0); + wake_up(&ctx->wait_vsync_queue); + ctx->event = NULL; + } + + spin_unlock_irqrestore(&dev->event_lock, flags); +} + +static void rockchip_drm_crtc_destroy(struct drm_crtc *crtc) +{ + struct vop_context *ctx = to_vop_ctx(crtc); + struct rockchip_drm_private *private = crtc->dev->dev_private; + + private->crtc[ctx->pipe] = NULL; + drm_crtc_cleanup(crtc); +} + +static const struct drm_crtc_funcs rockchip_crtc_funcs = { + .set_config = drm_crtc_helper_set_config, + .page_flip = rockchip_drm_crtc_page_flip, + .destroy = rockchip_drm_crtc_destroy, +}; + +static void rockchip_vsync_worker(struct work_struct *work) +{ + struct vop_context *ctx = container_of(work, struct vop_context, + vsync_work); + struct drm_device *drm = ctx->drm_dev; + struct rockchip_drm_private *dev_priv = drm->dev_private; + struct drm_crtc *crtc = dev_priv->crtc[ctx->pipe]; + struct rockchip_plane *rockchip_plane; + struct drm_plane *plane; + uint32_t yrgb_mst; + + mutex_lock(&ctx->vsync_mutex); + + ctx->vsync_work_pending = false; + + list_for_each_entry(plane, &drm->mode_config.plane_list, head) { + rockchip_plane = to_rockchip_plane(plane); + + if (to_vop_ctx(plane->crtc) != ctx) + continue; + if (rockchip_plane->enabled && !rockchip_plane->pending_fb) + continue; + if (!rockchip_plane->enabled && !rockchip_plane->front_fb) + continue; + /* + * make sure the yrgb_mst take effect, so that + * we can unreference the old framebuffer. + */ + yrgb_mst = VOP_WIN_GET_YRGBADDR(ctx, rockchip_plane->win); + if (rockchip_plane->pending_yrgb_mst != yrgb_mst) { + /* + * some plane no complete, unref at next vblank + */ + ctx->vsync_work_pending = true; + continue; + } + + /* + * drm_framebuffer_unreference maybe call iommu unmap, + * and iommu not allow unmap buffer at irq context, + * so we do drm_framebuffer_unreference at queue_work. + */ + if (rockchip_plane->front_fb) + drm_framebuffer_unreference(rockchip_plane->front_fb); + + rockchip_plane->front_fb = rockchip_plane->pending_fb; + rockchip_plane->pending_fb = NULL; + + /* + * if primary plane flip complete, sending the event to + * userspace + */ + if (&rockchip_plane->base == crtc->primary) + rockchip_drm_crtc_finish_pageflip(ctx->drm_dev, + ctx->pipe); + } + + mutex_unlock(&ctx->vsync_mutex); +} + +static irqreturn_t rockchip_vop_isr(int irq, void *data) +{ + struct vop_context *ctx = data; + uint32_t intr0_reg; + unsigned long flags; + + intr0_reg = vop_readl(ctx, INTR_CTRL0); + if (intr0_reg & LINE_FLAG_INTR) { + spin_lock_irqsave(&ctx->irq_lock, flags); + vop_writel(ctx, INTR_CTRL0, intr0_reg | LINE_FLAG_INTR_CLR); + spin_unlock_irqrestore(&ctx->irq_lock, flags); + } else { + return IRQ_NONE; + } + + drm_handle_vblank(ctx->drm_dev, ctx->pipe); + if (ctx->vsync_work_pending) + queue_work(ctx->vsync_wq, &ctx->vsync_work); + + return IRQ_HANDLED; +} + +static int vop_create_crtc(struct vop_context *ctx) +{ + struct device *dev = ctx->dev; + struct drm_device *drm_dev = ctx->drm_dev; + struct drm_plane *primary, *cursor; + unsigned long possible_crtcs; + struct drm_crtc *crtc; + int ret; + int nr; + + ctx->win_mask = 0; + crtc = &ctx->crtc; + + ret = rockchip_drm_add_crtc(drm_dev, crtc, dev->of_node); + if (ret < 0) + return ret; + ctx->pipe = ret; + + possible_crtcs = (1 << ctx->pipe); + + for (nr = 0; nr < VOP_MAX_WIN_SUPPORT; nr++) { + if (nr == VOP_DEFAULT_PRIMARY) { + primary = rockchip_plane_init(ctx, possible_crtcs, + DRM_PLANE_TYPE_PRIMARY, + VOP_DEFAULT_PRIMARY); + if (IS_ERR(primary)) { + DRM_ERROR("fail to init primary plane\n"); + return PTR_ERR(primary); + } + } else if (nr == VOP_DEFAULT_CURSOR) { + cursor = rockchip_plane_init(ctx, possible_crtcs, + DRM_PLANE_TYPE_CURSOR, + VOP_DEFAULT_CURSOR); + if (IS_ERR(cursor)) { + DRM_ERROR("fail to init cursor plane\n"); + return PTR_ERR(cursor); + } + } else { + struct drm_plane *plane; + + plane = rockchip_plane_init(ctx, possible_crtcs, + DRM_PLANE_TYPE_OVERLAY, + nr); + if (IS_ERR(plane)) { + DRM_ERROR("fail to init overlay plane\n"); + return PTR_ERR(plane); + } + } + } + + drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor, + &rockchip_crtc_funcs); + drm_crtc_helper_add(crtc, &rockchip_crtc_helper_funcs); + + return 0; +} + +static int rockchip_vop_initial(struct vop_context *ctx) +{ + struct vop_driver_data *vop_data = ctx->data; + const struct vop_reg_data *init_table = vop_data->init_table; + struct reset_control *ahb_rst; + int i, ret; + + ctx->hclk = devm_clk_get(ctx->dev, "hclk_vop"); + if (IS_ERR(ctx->hclk)) { + dev_err(ctx->dev, "failed to get hclk source\n"); + return PTR_ERR(ctx->hclk); + } + ctx->aclk = devm_clk_get(ctx->dev, "aclk_vop"); + if (IS_ERR(ctx->aclk)) { + dev_err(ctx->dev, "failed to get aclk source\n"); + return PTR_ERR(ctx->aclk); + } + ctx->dclk = devm_clk_get(ctx->dev, "dclk_vop"); + if (IS_ERR(ctx->dclk)) { + dev_err(ctx->dev, "failed to get dclk source\n"); + return PTR_ERR(ctx->dclk); + } + + ret = clk_prepare(ctx->hclk); + if (ret < 0) { + dev_err(ctx->dev, "failed to prepare hclk\n"); + return ret; + } + + ret = clk_prepare(ctx->dclk); + if (ret < 0) { + dev_err(ctx->dev, "failed to prepare dclk\n"); + goto err_prepare_hclk; + } + + ret = clk_prepare(ctx->aclk); + if (ret < 0) { + dev_err(ctx->dev, "failed to prepare aclk\n"); + goto err_prepare_dclk; + } + + ret = vop_clk_enable(ctx); + if (ret < 0) + goto err_prepare_aclk; + + /* + * do hclk_reset, reset all vop registers. + */ + ahb_rst = devm_reset_control_get(ctx->dev, "ahb"); + if (IS_ERR(ahb_rst)) { + dev_err(ctx->dev, "failed to get ahb reset\n"); + ret = PTR_ERR(ahb_rst); + goto err_diable_clk; + } + reset_control_assert(ahb_rst); + usleep_range(10, 20); + reset_control_deassert(ahb_rst); + + memcpy(ctx->regsbak, ctx->regs, ctx->len); + + for (i = 0; i < vop_data->table_size; i++) + vop_writel(ctx, init_table[i].offset, init_table[i].value); + + for (i = 0; i < VOP_MAX_WIN_SUPPORT; i++) + VOP_WIN_SET(ctx, vop_data->win[i], enable, 0); + + vop_cfg_done(ctx); + + /* + * do dclk_reset, let all win config take affect, and then we can enable + * iommu safe. + */ + ctx->dclk_rst = devm_reset_control_get(ctx->dev, "dclk"); + if (IS_ERR(ctx->dclk_rst)) { + dev_err(ctx->dev, "failed to get dclk reset\n"); + ret = PTR_ERR(ctx->dclk_rst); + goto err_diable_clk; + } + reset_control_assert(ctx->dclk_rst); + usleep_range(10, 20); + reset_control_deassert(ctx->dclk_rst); + + ctx->dpms = DRM_MODE_DPMS_ON; + + return 0; + +err_prepare_aclk: + clk_unprepare(ctx->aclk); +err_prepare_dclk: + clk_unprepare(ctx->dclk); +err_prepare_hclk: + clk_unprepare(ctx->hclk); +err_diable_clk: + vop_clk_disable(ctx); + return ret; +} + +static int vop_bind(struct device *dev, struct device *master, void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + struct vop_driver_data *vop_data = vop_get_driver_data(dev); + struct drm_device *drm_dev = data; + struct vop_context *ctx; + struct resource *res; + int ret; + + if (!vop_data) + return -ENODEV; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->dev = dev; + ctx->data = vop_data; + ctx->drm_dev = drm_dev; + dev_set_drvdata(dev, ctx); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + ctx->len = resource_size(res); + ctx->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(ctx->regs)) + return PTR_ERR(ctx->regs); + + ctx->regsbak = devm_kzalloc(dev, ctx->len, GFP_KERNEL); + if (!ctx->regsbak) + return -ENOMEM; + + ret = rockchip_vop_initial(ctx); + if (ret < 0) { + dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret); + return ret; + } + + ctx->irq = platform_get_irq(pdev, 0); + if (ctx->irq < 0) { + dev_err(dev, "cannot find irq for vop\n"); + return ctx->irq; + } + + spin_lock_init(&ctx->reg_lock); + spin_lock_init(&ctx->irq_lock); + + init_waitqueue_head(&ctx->wait_vsync_queue); + atomic_set(&ctx->wait_vsync_event, 0); + + ret = vop_iommu_init(ctx); + if (ret) { + DRM_ERROR("Failed to setup iommu, %d\n", ret); + return ret; + } + + ctx->vsync_wq = create_singlethread_workqueue("vsync"); + if (!ctx->vsync_wq) { + dev_err(dev, "failed to create workqueue\n"); + return -EINVAL; + } + INIT_WORK(&ctx->vsync_work, rockchip_vsync_worker); + + mutex_init(&ctx->vsync_mutex); + pm_runtime_enable(&pdev->dev); + + ret = devm_request_irq(dev, ctx->irq, rockchip_vop_isr, + IRQF_SHARED, dev_name(dev), ctx); + if (ret) { + dev_err(dev, "cannot requeset irq%d - err %d\n", ctx->irq, ret); + return ret; + } + + return vop_create_crtc(ctx); +} + +static void vop_unbind(struct device *dev, struct device *master, + void *data) +{ + struct drm_device *drm_dev = data; + struct vop_context *ctx = dev_get_drvdata(dev); + struct drm_crtc *crtc = &ctx->crtc; + + drm_crtc_cleanup(crtc); + pm_runtime_disable(dev); + rockchip_drm_remove_crtc(drm_dev, ctx->pipe); + + vop_iommu_fini(ctx); +} + +static const struct component_ops vop_component_ops = { + .bind = vop_bind, + .unbind = vop_unbind, +}; + +static int vop_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct vop_context *ctx; + + if (!dev->of_node) { + dev_err(dev, "can't find vop devices\n"); + return -ENODEV; + } + + platform_set_drvdata(pdev, ctx); + + return component_add(dev, &vop_component_ops); +} + +static int vop_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &vop_component_ops); + + return 0; +} + +struct platform_driver rockchip_vop_platform_driver = { + .probe = vop_probe, + .remove = vop_remove, + .driver = { + .name = "rockchip-vop", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(vop_driver_dt_match), + }, +}; + +module_platform_driver(rockchip_vop_platform_driver); + +MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>"); +MODULE_DESCRIPTION("ROCKCHIP VOP Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h new file mode 100644 index 0000000..d2a04f0 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h @@ -0,0 +1,196 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author:Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _ROCKCHIP_DRM_VOP_H +#define _ROCKCHIP_DRM_VOP_H + +/* register definition */ +#define REG_CFG_DONE 0x0000 +#define VERSION_INFO 0x0004 +#define SYS_CTRL 0x0008 +#define SYS_CTRL1 0x000c +#define DSP_CTRL0 0x0010 +#define DSP_CTRL1 0x0014 +#define DSP_BG 0x0018 +#define MCU_CTRL 0x001c +#define INTR_CTRL0 0x0020 +#define INTR_CTRL1 0x0024 +#define WIN0_CTRL0 0x0030 +#define WIN0_CTRL1 0x0034 +#define WIN0_COLOR_KEY 0x0038 +#define WIN0_VIR 0x003c +#define WIN0_YRGB_MST 0x0040 +#define WIN0_CBR_MST 0x0044 +#define WIN0_ACT_INFO 0x0048 +#define WIN0_DSP_INFO 0x004c +#define WIN0_DSP_ST 0x0050 +#define WIN0_SCL_FACTOR_YRGB 0x0054 +#define WIN0_SCL_FACTOR_CBR 0x0058 +#define WIN0_SCL_OFFSET 0x005c +#define WIN0_SRC_ALPHA_CTRL 0x0060 +#define WIN0_DST_ALPHA_CTRL 0x0064 +#define WIN0_FADING_CTRL 0x0068 +/* win1 register */ +#define WIN1_CTRL0 0x0070 +#define WIN1_CTRL1 0x0074 +#define WIN1_COLOR_KEY 0x0078 +#define WIN1_VIR 0x007c +#define WIN1_YRGB_MST 0x0080 +#define WIN1_CBR_MST 0x0084 +#define WIN1_ACT_INFO 0x0088 +#define WIN1_DSP_INFO 0x008c +#define WIN1_DSP_ST 0x0090 +#define WIN1_SCL_FACTOR_YRGB 0x0094 +#define WIN1_SCL_FACTOR_CBR 0x0098 +#define WIN1_SCL_OFFSET 0x009c +#define WIN1_SRC_ALPHA_CTRL 0x00a0 +#define WIN1_DST_ALPHA_CTRL 0x00a4 +#define WIN1_FADING_CTRL 0x00a8 +/* win2 register */ +#define WIN2_CTRL0 0x00b0 +#define WIN2_CTRL1 0x00b4 +#define WIN2_VIR0_1 0x00b8 +#define WIN2_VIR2_3 0x00bc +#define WIN2_MST0 0x00c0 +#define WIN2_DSP_INFO0 0x00c4 +#define WIN2_DSP_ST0 0x00c8 +#define WIN2_COLOR_KEY 0x00cc +#define WIN2_MST1 0x00d0 +#define WIN2_DSP_INFO1 0x00d4 +#define WIN2_DSP_ST1 0x00d8 +#define WIN2_SRC_ALPHA_CTRL 0x00dc +#define WIN2_MST2 0x00e0 +#define WIN2_DSP_INFO2 0x00e4 +#define WIN2_DSP_ST2 0x00e8 +#define WIN2_DST_ALPHA_CTRL 0x00ec +#define WIN2_MST3 0x00f0 +#define WIN2_DSP_INFO3 0x00f4 +#define WIN2_DSP_ST3 0x00f8 +#define WIN2_FADING_CTRL 0x00fc +/* win3 register */ +#define WIN3_CTRL0 0x0100 +#define WIN3_CTRL1 0x0104 +#define WIN3_VIR0_1 0x0108 +#define WIN3_VIR2_3 0x010c +#define WIN3_MST0 0x0110 +#define WIN3_DSP_INFO0 0x0114 +#define WIN3_DSP_ST0 0x0118 +#define WIN3_COLOR_KEY 0x011c +#define WIN3_MST1 0x0120 +#define WIN3_DSP_INFO1 0x0124 +#define WIN3_DSP_ST1 0x0128 +#define WIN3_SRC_ALPHA_CTRL 0x012c +#define WIN3_MST2 0x0130 +#define WIN3_DSP_INFO2 0x0134 +#define WIN3_DSP_ST2 0x0138 +#define WIN3_DST_ALPHA_CTRL 0x013c +#define WIN3_MST3 0x0140 +#define WIN3_DSP_INFO3 0x0144 +#define WIN3_DSP_ST3 0x0148 +#define WIN3_FADING_CTRL 0x014c +/* hwc register */ +#define HWC_CTRL0 0x0150 +#define HWC_CTRL1 0x0154 +#define HWC_MST 0x0158 +#define HWC_DSP_ST 0x015c +#define HWC_SRC_ALPHA_CTRL 0x0160 +#define HWC_DST_ALPHA_CTRL 0x0164 +#define HWC_FADING_CTRL 0x0168 +/* post process register */ +#define POST_DSP_HACT_INFO 0x0170 +#define POST_DSP_VACT_INFO 0x0174 +#define POST_SCL_FACTOR_YRGB 0x0178 +#define POST_SCL_CTRL 0x0180 +#define POST_DSP_VACT_INFO_F1 0x0184 +#define DSP_HTOTAL_HS_END 0x0188 +#define DSP_HACT_ST_END 0x018c +#define DSP_VTOTAL_VS_END 0x0190 +#define DSP_VACT_ST_END 0x0194 +#define DSP_VS_ST_END_F1 0x0198 +#define DSP_VACT_ST_END_F1 0x019c +/* register definition end */ + +/* interrupt define */ +#define DSP_HOLD_VALID_INTR (1 << 0) +#define FS_INTR (1 << 1) +#define LINE_FLAG_INTR (1 << 2) +#define BUS_ERROR_INTR (1 << 3) + +#define DSP_HOLD_VALID_INTR_EN(x) ((x) << 4) +#define FS_INTR_EN(x) ((x) << 5) +#define LINE_FLAG_INTR_EN(x) ((x) << 6) +#define BUS_ERROR_INTR_EN(x) ((x) << 7) +#define DSP_HOLD_VALID_INTR_MASK (1 << 4) +#define FS_INTR_EN_MASK (1 << 5) +#define LINE_FLAG_INTR_MASK (1 << 6) +#define BUS_ERROR_INTR_MASK (1 << 7) + +#define DSP_HOLD_VALID_INTR_CLR (1 << 8) +#define FS_INTR_EN_CLR (1 << 9) +#define LINE_FLAG_INTR_CLR (1 << 10) +#define BUS_ERROR_INTR_CLR (1 << 11) +#define DSP_LINE_NUM(x) (((x) & 0x1fff) << 12) +#define DSP_LINE_NUM_MASK (0x1fff << 12) + +/* src alpha ctrl define */ +#define SRC_FADING_VALUE(x) (((x) & 0xff) << 24) +#define SRC_GLOBAL_ALPHA(x) (((x) & 0xff) << 16) +#define SRC_FACTOR_M0(x) (((x) & 0x7) << 6) +#define SRC_ALPHA_CAL_M0(x) (((x) & 0x1) << 5) +#define SRC_BLEND_M0(x) (((x) & 0x3) << 3) +#define SRC_ALPHA_M0(x) (((x) & 0x1) << 2) +#define SRC_COLOR_M0(x) (((x) & 0x1) << 1) +#define SRC_ALPHA_EN(x) (((x) & 0x1) << 0) +/* dst alpha ctrl define */ +#define DST_FACTOR_M0(x) (((x) & 0x7) << 6) + +/* + * display output interface supported by rockchip lcdc + */ +#define ROCKCHIP_OUT_MODE_P888 0 +#define ROCKCHIP_OUT_MODE_P666 1 +#define ROCKCHIP_OUT_MODE_P565 2 +/* for use special outface */ +#define ROCKCHIP_OUT_MODE_AAAA 15 + +enum alpha_mode { + ALPHA_STRAIGHT, + ALPHA_INVERSE, +}; + +enum global_blend_mode { + ALPHA_GLOBAL, + ALPHA_PER_PIX, + ALPHA_PER_PIX_GLOBAL, +}; + +enum alpha_cal_mode { + ALPHA_SATURATION, + ALPHA_NO_SATURATION, +}; + +enum color_mode { + ALPHA_SRC_PRE_MUL, + ALPHA_SRC_NO_PRE_MUL, +}; + +enum factor_mode { + ALPHA_ZERO, + ALPHA_ONE, + ALPHA_SRC, + ALPHA_SRC_INVERSE, + ALPHA_SRC_GLOBAL, +}; + +#endif /* _ROCKCHIP_DRM_VOP_H */