| Message ID | 20211215104318.18866-4-tzimmermann@suse.de (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | drm/dp: Move DisplayPort helpers into own module | expand |
On Wed, 15 Dec 2021, Thomas Zimmermann <tzimmermann@suse.de> wrote:
> * move DP helper code into dp/ (Jani)
I suggested adding the subdirectory, but I'm going to bikeshed the name,
which I didn't suggest.
$ find drivers/gpu/drm -mindepth 1 -maxdepth 1 -type d | wc -l
68
Assuming we move more of the drm modules to subdirectories, how are they
going to stand out from drivers?
I suggested drm_dp, which I understand results in tautology, but hey,
all the filenames under drm/ also have drm_*.[ch]. And I find that very
useful for git greps and other code archeology. With just the dp name,
you'd have to know and list all the drm subdirectories when looking up
stuff that's part of drm but not drivers.
BR,
Jani.
Hi Am 15.12.21 um 12:04 schrieb Jani Nikula: > On Wed, 15 Dec 2021, Thomas Zimmermann <tzimmermann@suse.de> wrote: >> * move DP helper code into dp/ (Jani) > > I suggested adding the subdirectory, but I'm going to bikeshed the name, > which I didn't suggest. > > $ find drivers/gpu/drm -mindepth 1 -maxdepth 1 -type d | wc -l > 68 > > Assuming we move more of the drm modules to subdirectories, how are they > going to stand out from drivers? > > I suggested drm_dp, which I understand results in tautology, but hey, > all the filenames under drm/ also have drm_*.[ch]. And I find that very > useful for git greps and other code archeology. With just the dp name, > you'd have to know and list all the drm subdirectories when looking up > stuff that's part of drm but not drivers. I think we have enough filename prefixes already. drm/drm_dp/drm_dp_ is just ridiculous. Best regards Thomas > > > BR, > Jani. > >
On Wed, Dec 15, 2021 at 01:04:00PM +0200, Jani Nikula wrote: > On Wed, 15 Dec 2021, Thomas Zimmermann <tzimmermann@suse.de> wrote: > > * move DP helper code into dp/ (Jani) > > I suggested adding the subdirectory, but I'm going to bikeshed the name, > which I didn't suggest. > > $ find drivers/gpu/drm -mindepth 1 -maxdepth 1 -type d | wc -l > 68 Maybe the hardware-specific drivers could be moved up to drivers/gpu/ instead? That would make it obvious what code is generic and what is not. Best Regards Michał Mirosław
On Wed, Dec 15, 2021 at 12:12 PM Thomas Zimmermann <tzimmermann@suse.de> wrote: > > Hi > > Am 15.12.21 um 12:04 schrieb Jani Nikula: > > On Wed, 15 Dec 2021, Thomas Zimmermann <tzimmermann@suse.de> wrote: > >> * move DP helper code into dp/ (Jani) > > > > I suggested adding the subdirectory, but I'm going to bikeshed the name, > > which I didn't suggest. > > > > $ find drivers/gpu/drm -mindepth 1 -maxdepth 1 -type d | wc -l > > 68 > > > > Assuming we move more of the drm modules to subdirectories, how are they > > going to stand out from drivers? > > > > I suggested drm_dp, which I understand results in tautology, but hey, > > all the filenames under drm/ also have drm_*.[ch]. And I find that very > > useful for git greps and other code archeology. With just the dp name, > > you'd have to know and list all the drm subdirectories when looking up > > stuff that's part of drm but not drivers. > > I think we have enough filename prefixes already. drm/drm_dp/drm_dp_ is > just ridiculous. > Maybe what can be done is to just add a drivers/gpu/drm/core subdirectory that would contain all the DRM core code ? Then the dp helpers could be moved to drivers/gpu/drm/core/dp/drm_dp.c for example. This would also make easy to differentiate the drm modules from the drivers with just: $ find drivers/gpu/drm -mindepth 1 -maxdepth 1 -type d -not -name core Best regards, Javier
Acked-by: Lyude Paul <lyude@redhat.com> On Wed, 2021-12-15 at 11:43 +0100, Thomas Zimmermann wrote: > Move DisplayPort functions into a separate module to reduce the size > of the KMS helpers. Select DRM_DP_HELPER for all users of the code. To > avoid naming conflicts, rename drm_dp_helper.c to drm_dp.c > > This change can help to reduce the size of the kernel binary. Some > numbers from a x86-64 test build: > > Before: > drm_kms_helper.ko: 447480 bytes > > After: > drm_dp_helper.ko: 216632 bytes > drm_kms_helper.ko: 239424 bytes > > For early-boot graphics, generic DRM drivers, such as simpledrm, > require DRM KMS helpers to be built into the kernel. Generic helper > functions for DisplayPort take up a significant portion of DRM KMS > helper library. These functions are not used by generic drivers and > can be loaded as a module. > > v2: > * move DP helper code into dp/ (Jani) > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > --- > drivers/gpu/drm/Kconfig | 8 +++++++ > drivers/gpu/drm/Makefile | 10 ++++----- > drivers/gpu/drm/bridge/Kconfig | 4 ++++ > drivers/gpu/drm/bridge/analogix/Kconfig | 2 ++ > drivers/gpu/drm/bridge/cadence/Kconfig | 1 + > drivers/gpu/drm/dp/Makefile | 7 ++++++ > .../gpu/drm/{drm_dp_helper.c => dp/drm_dp.c} | 0 > drivers/gpu/drm/{ => dp}/drm_dp_aux_dev.c | 0 > drivers/gpu/drm/{ => dp}/drm_dp_cec.c | 0 > .../drm/{ => dp}/drm_dp_dual_mode_helper.c | 0 > .../gpu/drm/{ => dp}/drm_dp_helper_internal.h | 0 > drivers/gpu/drm/dp/drm_dp_helper_mod.c | 22 +++++++++++++++++++ > .../gpu/drm/{ => dp}/drm_dp_mst_topology.c | 0 > .../{ => dp}/drm_dp_mst_topology_internal.h | 0 > drivers/gpu/drm/drm_kms_helper_common.c | 15 ------------- > drivers/gpu/drm/i915/Kconfig | 1 + > drivers/gpu/drm/msm/Kconfig | 1 + > drivers/gpu/drm/nouveau/Kconfig | 1 + > drivers/gpu/drm/rockchip/Kconfig | 1 + > drivers/gpu/drm/tegra/Kconfig | 1 + > drivers/gpu/drm/xlnx/Kconfig | 1 + > 21 files changed, 54 insertions(+), 21 deletions(-) > create mode 100644 drivers/gpu/drm/dp/Makefile > rename drivers/gpu/drm/{drm_dp_helper.c => dp/drm_dp.c} (100%) > rename drivers/gpu/drm/{ => dp}/drm_dp_aux_dev.c (100%) > rename drivers/gpu/drm/{ => dp}/drm_dp_cec.c (100%) > rename drivers/gpu/drm/{ => dp}/drm_dp_dual_mode_helper.c (100%) > rename drivers/gpu/drm/{ => dp}/drm_dp_helper_internal.h (100%) > create mode 100644 drivers/gpu/drm/dp/drm_dp_helper_mod.c > rename drivers/gpu/drm/{ => dp}/drm_dp_mst_topology.c (100%) > rename drivers/gpu/drm/{ => dp}/drm_dp_mst_topology_internal.h (100%) > > diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig > index b1f22e457fd0..91f54aeb0b7c 100644 > --- a/drivers/gpu/drm/Kconfig > +++ b/drivers/gpu/drm/Kconfig > @@ -80,6 +80,12 @@ config DRM_DEBUG_SELFTEST > > If in doubt, say "N". > > +config DRM_DP_HELPER > + tristate > + depends on DRM > + help > + DRM helpers for DisplayPort. > + > config DRM_KMS_HELPER > tristate > depends on DRM > @@ -236,6 +242,7 @@ config DRM_RADEON > depends on DRM && PCI && MMU > depends on AGP || !AGP > select FW_LOADER > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select DRM_TTM > select DRM_TTM_HELPER > @@ -256,6 +263,7 @@ config DRM_AMDGPU > tristate "AMD GPU" > depends on DRM && PCI && MMU > select FW_LOADER > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select DRM_SCHED > select DRM_TTM > diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile > index 301a44dc18e3..69be80ef1d31 100644 > --- a/drivers/gpu/drm/Makefile > +++ b/drivers/gpu/drm/Makefile > @@ -48,21 +48,18 @@ obj-$(CONFIG_DRM_VRAM_HELPER) += drm_vram_helper.o > drm_ttm_helper-y := drm_gem_ttm_helper.o > obj-$(CONFIG_DRM_TTM_HELPER) += drm_ttm_helper.o > > -drm_kms_helper-y := drm_bridge_connector.o drm_crtc_helper.o > drm_dp_helper.o \ > +drm_kms_helper-y := drm_bridge_connector.o drm_crtc_helper.o \ > drm_dsc.o drm_encoder_slave.o drm_flip_work.o drm_hdcp.o \ > drm_probe_helper.o \ > - drm_plane_helper.o drm_dp_mst_topology.o drm_atomic_helper.o > \ > - drm_kms_helper_common.o drm_dp_dual_mode_helper.o \ > + drm_plane_helper.o drm_atomic_helper.o \ > + drm_kms_helper_common.o \ > drm_simple_kms_helper.o drm_modeset_helper.o \ > drm_scdc_helper.o drm_gem_atomic_helper.o \ > drm_gem_framebuffer_helper.o \ > drm_atomic_state_helper.o drm_damage_helper.o \ > drm_format_helper.o drm_self_refresh_helper.o drm_rect.o > - > drm_kms_helper-$(CONFIG_DRM_PANEL_BRIDGE) += bridge/panel.o > drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o > -drm_kms_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o > -drm_kms_helper-$(CONFIG_DRM_DP_CEC) += drm_dp_cec.o > > obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o > obj-$(CONFIG_DRM_DEBUG_SELFTEST) += selftests/ > @@ -72,6 +69,7 @@ obj-$(CONFIG_DRM_MIPI_DBI) += drm_mipi_dbi.o > obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o > obj-$(CONFIG_DRM_PANEL_ORIENTATION_QUIRKS) += > drm_panel_orientation_quirks.o > obj-y += arm/ > +obj-y += dp/ > obj-$(CONFIG_DRM_TTM) += ttm/ > obj-$(CONFIG_DRM_SCHED) += scheduler/ > obj-$(CONFIG_DRM_TDFX) += tdfx/ > diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig > index 61db5a66b493..a27435a4c9c4 100644 > --- a/drivers/gpu/drm/bridge/Kconfig > +++ b/drivers/gpu/drm/bridge/Kconfig > @@ -183,6 +183,7 @@ config DRM_PARADE_PS8640 > tristate "Parade PS8640 MIPI DSI to eDP Converter" > depends on OF > select DRM_DP_AUX_BUS > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select DRM_MIPI_DSI > select DRM_PANEL > @@ -253,6 +254,7 @@ config DRM_TOSHIBA_TC358764 > config DRM_TOSHIBA_TC358767 > tristate "Toshiba TC358767 eDP bridge" > depends on OF > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select REGMAP_I2C > select DRM_PANEL > @@ -272,6 +274,7 @@ config DRM_TOSHIBA_TC358768 > config DRM_TOSHIBA_TC358775 > tristate "Toshiba TC358775 DSI/LVDS bridge" > depends on OF > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select REGMAP_I2C > select DRM_PANEL > @@ -299,6 +302,7 @@ config DRM_TI_SN65DSI83 > config DRM_TI_SN65DSI86 > tristate "TI SN65DSI86 DSI to eDP bridge" > depends on OF > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select REGMAP_I2C > select DRM_PANEL > diff --git a/drivers/gpu/drm/bridge/analogix/Kconfig > b/drivers/gpu/drm/bridge/analogix/Kconfig > index 2ef6eb2b786c..319ba0df57be 100644 > --- a/drivers/gpu/drm/bridge/analogix/Kconfig > +++ b/drivers/gpu/drm/bridge/analogix/Kconfig > @@ -3,6 +3,7 @@ config DRM_ANALOGIX_ANX6345 > tristate "Analogix ANX6345 bridge" > depends on OF > select DRM_ANALOGIX_DP > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select REGMAP_I2C > help > @@ -14,6 +15,7 @@ config DRM_ANALOGIX_ANX6345 > config DRM_ANALOGIX_ANX78XX > tristate "Analogix ANX78XX bridge" > select DRM_ANALOGIX_DP > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select REGMAP_I2C > help > diff --git a/drivers/gpu/drm/bridge/cadence/Kconfig > b/drivers/gpu/drm/bridge/cadence/Kconfig > index ef8c230e0f62..de697bade05e 100644 > --- a/drivers/gpu/drm/bridge/cadence/Kconfig > +++ b/drivers/gpu/drm/bridge/cadence/Kconfig > @@ -1,6 +1,7 @@ > # SPDX-License-Identifier: GPL-2.0-only > config DRM_CDNS_MHDP8546 > tristate "Cadence DPI/DP bridge" > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select DRM_PANEL_BRIDGE > depends on OF > diff --git a/drivers/gpu/drm/dp/Makefile b/drivers/gpu/drm/dp/Makefile > new file mode 100644 > index 000000000000..5b892aeff5ab > --- /dev/null > +++ b/drivers/gpu/drm/dp/Makefile > @@ -0,0 +1,7 @@ > +# SPDX-License-Identifier: MIT > + > +drm_dp_helper-y := drm_dp.o drm_dp_dual_mode_helper.o drm_dp_helper_mod.o > drm_dp_mst_topology.o > +drm_dp_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o > +drm_dp_helper-$(CONFIG_DRM_DP_CEC) += drm_dp_cec.o > + > +obj-$(CONFIG_DRM_DP_HELPER) += drm_dp_helper.o > diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/dp/drm_dp.c > similarity index 100% > rename from drivers/gpu/drm/drm_dp_helper.c > rename to drivers/gpu/drm/dp/drm_dp.c > diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c > b/drivers/gpu/drm/dp/drm_dp_aux_dev.c > similarity index 100% > rename from drivers/gpu/drm/drm_dp_aux_dev.c > rename to drivers/gpu/drm/dp/drm_dp_aux_dev.c > diff --git a/drivers/gpu/drm/drm_dp_cec.c b/drivers/gpu/drm/dp/drm_dp_cec.c > similarity index 100% > rename from drivers/gpu/drm/drm_dp_cec.c > rename to drivers/gpu/drm/dp/drm_dp_cec.c > diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c > b/drivers/gpu/drm/dp/drm_dp_dual_mode_helper.c > similarity index 100% > rename from drivers/gpu/drm/drm_dp_dual_mode_helper.c > rename to drivers/gpu/drm/dp/drm_dp_dual_mode_helper.c > diff --git a/drivers/gpu/drm/drm_dp_helper_internal.h > b/drivers/gpu/drm/dp/drm_dp_helper_internal.h > similarity index 100% > rename from drivers/gpu/drm/drm_dp_helper_internal.h > rename to drivers/gpu/drm/dp/drm_dp_helper_internal.h > diff --git a/drivers/gpu/drm/dp/drm_dp_helper_mod.c > b/drivers/gpu/drm/dp/drm_dp_helper_mod.c > new file mode 100644 > index 000000000000..db753de24000 > --- /dev/null > +++ b/drivers/gpu/drm/dp/drm_dp_helper_mod.c > @@ -0,0 +1,22 @@ > +// SPDX-License-Identifier: MIT > + > +#include <linux/module.h> > + > +#include "drm_dp_helper_internal.h" > + > +MODULE_DESCRIPTION("DRM DisplayPort helper"); > +MODULE_LICENSE("GPL and additional rights"); > + > +static int __init drm_dp_helper_module_init(void) > +{ > + return drm_dp_aux_dev_init(); > +} > + > +static void __exit drm_dp_helper_module_exit(void) > +{ > + /* Call exit functions from specific dp helpers here */ > + drm_dp_aux_dev_exit(); > +} > + > +module_init(drm_dp_helper_module_init); > +module_exit(drm_dp_helper_module_exit); > diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c > b/drivers/gpu/drm/dp/drm_dp_mst_topology.c > similarity index 100% > rename from drivers/gpu/drm/drm_dp_mst_topology.c > rename to drivers/gpu/drm/dp/drm_dp_mst_topology.c > diff --git a/drivers/gpu/drm/drm_dp_mst_topology_internal.h > b/drivers/gpu/drm/dp/drm_dp_mst_topology_internal.h > similarity index 100% > rename from drivers/gpu/drm/drm_dp_mst_topology_internal.h > rename to drivers/gpu/drm/dp/drm_dp_mst_topology_internal.h > diff --git a/drivers/gpu/drm/drm_kms_helper_common.c > b/drivers/gpu/drm/drm_kms_helper_common.c > index 88260d26409c..8be20080cd8d 100644 > --- a/drivers/gpu/drm/drm_kms_helper_common.c > +++ b/drivers/gpu/drm/drm_kms_helper_common.c > @@ -29,7 +29,6 @@ > > #include <drm/drm_print.h> > > -#include "drm_dp_helper_internal.h" > #include "drm_crtc_helper_internal.h" > > MODULE_AUTHOR("David Airlie, Jesse Barnes"); > @@ -62,17 +61,3 @@ MODULE_PARM_DESC(edid_firmware, > "DEPRECATED. Use drm.edid_firmware module parameter > instead."); > > #endif > - > -static int __init drm_kms_helper_init(void) > -{ > - return drm_dp_aux_dev_init(); > -} > - > -static void __exit drm_kms_helper_exit(void) > -{ > - /* Call exit functions from specific kms helpers here */ > - drm_dp_aux_dev_exit(); > -} > - > -module_init(drm_kms_helper_init); > -module_exit(drm_kms_helper_exit); > diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig > index a4c94dc2e216..b68e8b551b83 100644 > --- a/drivers/gpu/drm/i915/Kconfig > +++ b/drivers/gpu/drm/i915/Kconfig > @@ -9,6 +9,7 @@ config DRM_I915 > # the shmem_readpage() which depends upon tmpfs > select SHMEM > select TMPFS > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select DRM_PANEL > select DRM_MIPI_DSI > diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig > index 39197b4beea7..75015b0e165e 100644 > --- a/drivers/gpu/drm/msm/Kconfig > +++ b/drivers/gpu/drm/msm/Kconfig > @@ -12,6 +12,7 @@ config DRM_MSM > select IOMMU_IO_PGTABLE > select QCOM_MDT_LOADER if ARCH_QCOM > select REGULATOR > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select DRM_PANEL > select DRM_BRIDGE > diff --git a/drivers/gpu/drm/nouveau/Kconfig > b/drivers/gpu/drm/nouveau/Kconfig > index 9436310d0854..3ec690b6f0b4 100644 > --- a/drivers/gpu/drm/nouveau/Kconfig > +++ b/drivers/gpu/drm/nouveau/Kconfig > @@ -4,6 +4,7 @@ config DRM_NOUVEAU > depends on DRM && PCI && MMU > select IOMMU_API > select FW_LOADER > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select DRM_TTM > select DRM_TTM_HELPER > diff --git a/drivers/gpu/drm/rockchip/Kconfig > b/drivers/gpu/drm/rockchip/Kconfig > index 9f1ecefc3933..d59dca5efb52 100644 > --- a/drivers/gpu/drm/rockchip/Kconfig > +++ b/drivers/gpu/drm/rockchip/Kconfig > @@ -2,6 +2,7 @@ > config DRM_ROCKCHIP > tristate "DRM Support for Rockchip" > depends on DRM && ROCKCHIP_IOMMU > + select DRM_DP_HELPER > select DRM_GEM_CMA_HELPER > select DRM_KMS_HELPER > select DRM_PANEL > diff --git a/drivers/gpu/drm/tegra/Kconfig b/drivers/gpu/drm/tegra/Kconfig > index 1650a448eabd..dc88adc7ba40 100644 > --- a/drivers/gpu/drm/tegra/Kconfig > +++ b/drivers/gpu/drm/tegra/Kconfig > @@ -5,6 +5,7 @@ config DRM_TEGRA > depends on COMMON_CLK > depends on DRM > depends on OF > + select DRM_DP_HELPER > select DRM_KMS_HELPER > select DRM_MIPI_DSI > select DRM_PANEL > diff --git a/drivers/gpu/drm/xlnx/Kconfig b/drivers/gpu/drm/xlnx/Kconfig > index d8d38d86d5c6..06cf477dbcdd 100644 > --- a/drivers/gpu/drm/xlnx/Kconfig > +++ b/drivers/gpu/drm/xlnx/Kconfig > @@ -6,6 +6,7 @@ config DRM_ZYNQMP_DPSUB > depends on PHY_XILINX_ZYNQMP > depends on XILINX_ZYNQMP_DPDMA > select DMA_ENGINE > + select DRM_DP_HELPER > select DRM_GEM_CMA_HELPER > select DRM_KMS_HELPER > select GENERIC_PHY
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index b1f22e457fd0..91f54aeb0b7c 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -80,6 +80,12 @@ config DRM_DEBUG_SELFTEST If in doubt, say "N". +config DRM_DP_HELPER + tristate + depends on DRM + help + DRM helpers for DisplayPort. + config DRM_KMS_HELPER tristate depends on DRM @@ -236,6 +242,7 @@ config DRM_RADEON depends on DRM && PCI && MMU depends on AGP || !AGP select FW_LOADER + select DRM_DP_HELPER select DRM_KMS_HELPER select DRM_TTM select DRM_TTM_HELPER @@ -256,6 +263,7 @@ config DRM_AMDGPU tristate "AMD GPU" depends on DRM && PCI && MMU select FW_LOADER + select DRM_DP_HELPER select DRM_KMS_HELPER select DRM_SCHED select DRM_TTM diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 301a44dc18e3..69be80ef1d31 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -48,21 +48,18 @@ obj-$(CONFIG_DRM_VRAM_HELPER) += drm_vram_helper.o drm_ttm_helper-y := drm_gem_ttm_helper.o obj-$(CONFIG_DRM_TTM_HELPER) += drm_ttm_helper.o -drm_kms_helper-y := drm_bridge_connector.o drm_crtc_helper.o drm_dp_helper.o \ +drm_kms_helper-y := drm_bridge_connector.o drm_crtc_helper.o \ drm_dsc.o drm_encoder_slave.o drm_flip_work.o drm_hdcp.o \ drm_probe_helper.o \ - drm_plane_helper.o drm_dp_mst_topology.o drm_atomic_helper.o \ - drm_kms_helper_common.o drm_dp_dual_mode_helper.o \ + drm_plane_helper.o drm_atomic_helper.o \ + drm_kms_helper_common.o \ drm_simple_kms_helper.o drm_modeset_helper.o \ drm_scdc_helper.o drm_gem_atomic_helper.o \ drm_gem_framebuffer_helper.o \ drm_atomic_state_helper.o drm_damage_helper.o \ drm_format_helper.o drm_self_refresh_helper.o drm_rect.o - drm_kms_helper-$(CONFIG_DRM_PANEL_BRIDGE) += bridge/panel.o drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o -drm_kms_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o -drm_kms_helper-$(CONFIG_DRM_DP_CEC) += drm_dp_cec.o obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o obj-$(CONFIG_DRM_DEBUG_SELFTEST) += selftests/ @@ -72,6 +69,7 @@ obj-$(CONFIG_DRM_MIPI_DBI) += drm_mipi_dbi.o obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o obj-$(CONFIG_DRM_PANEL_ORIENTATION_QUIRKS) += drm_panel_orientation_quirks.o obj-y += arm/ +obj-y += dp/ obj-$(CONFIG_DRM_TTM) += ttm/ obj-$(CONFIG_DRM_SCHED) += scheduler/ obj-$(CONFIG_DRM_TDFX) += tdfx/ diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index 61db5a66b493..a27435a4c9c4 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -183,6 +183,7 @@ config DRM_PARADE_PS8640 tristate "Parade PS8640 MIPI DSI to eDP Converter" depends on OF select DRM_DP_AUX_BUS + select DRM_DP_HELPER select DRM_KMS_HELPER select DRM_MIPI_DSI select DRM_PANEL @@ -253,6 +254,7 @@ config DRM_TOSHIBA_TC358764 config DRM_TOSHIBA_TC358767 tristate "Toshiba TC358767 eDP bridge" depends on OF + select DRM_DP_HELPER select DRM_KMS_HELPER select REGMAP_I2C select DRM_PANEL @@ -272,6 +274,7 @@ config DRM_TOSHIBA_TC358768 config DRM_TOSHIBA_TC358775 tristate "Toshiba TC358775 DSI/LVDS bridge" depends on OF + select DRM_DP_HELPER select DRM_KMS_HELPER select REGMAP_I2C select DRM_PANEL @@ -299,6 +302,7 @@ config DRM_TI_SN65DSI83 config DRM_TI_SN65DSI86 tristate "TI SN65DSI86 DSI to eDP bridge" depends on OF + select DRM_DP_HELPER select DRM_KMS_HELPER select REGMAP_I2C select DRM_PANEL diff --git a/drivers/gpu/drm/bridge/analogix/Kconfig b/drivers/gpu/drm/bridge/analogix/Kconfig index 2ef6eb2b786c..319ba0df57be 100644 --- a/drivers/gpu/drm/bridge/analogix/Kconfig +++ b/drivers/gpu/drm/bridge/analogix/Kconfig @@ -3,6 +3,7 @@ config DRM_ANALOGIX_ANX6345 tristate "Analogix ANX6345 bridge" depends on OF select DRM_ANALOGIX_DP + select DRM_DP_HELPER select DRM_KMS_HELPER select REGMAP_I2C help @@ -14,6 +15,7 @@ config DRM_ANALOGIX_ANX6345 config DRM_ANALOGIX_ANX78XX tristate "Analogix ANX78XX bridge" select DRM_ANALOGIX_DP + select DRM_DP_HELPER select DRM_KMS_HELPER select REGMAP_I2C help diff --git a/drivers/gpu/drm/bridge/cadence/Kconfig b/drivers/gpu/drm/bridge/cadence/Kconfig index ef8c230e0f62..de697bade05e 100644 --- a/drivers/gpu/drm/bridge/cadence/Kconfig +++ b/drivers/gpu/drm/bridge/cadence/Kconfig @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only config DRM_CDNS_MHDP8546 tristate "Cadence DPI/DP bridge" + select DRM_DP_HELPER select DRM_KMS_HELPER select DRM_PANEL_BRIDGE depends on OF diff --git a/drivers/gpu/drm/dp/Makefile b/drivers/gpu/drm/dp/Makefile new file mode 100644 index 000000000000..5b892aeff5ab --- /dev/null +++ b/drivers/gpu/drm/dp/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: MIT + +drm_dp_helper-y := drm_dp.o drm_dp_dual_mode_helper.o drm_dp_helper_mod.o drm_dp_mst_topology.o +drm_dp_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o +drm_dp_helper-$(CONFIG_DRM_DP_CEC) += drm_dp_cec.o + +obj-$(CONFIG_DRM_DP_HELPER) += drm_dp_helper.o diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/dp/drm_dp.c similarity index 100% rename from drivers/gpu/drm/drm_dp_helper.c rename to drivers/gpu/drm/dp/drm_dp.c diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/dp/drm_dp_aux_dev.c similarity index 100% rename from drivers/gpu/drm/drm_dp_aux_dev.c rename to drivers/gpu/drm/dp/drm_dp_aux_dev.c diff --git a/drivers/gpu/drm/drm_dp_cec.c b/drivers/gpu/drm/dp/drm_dp_cec.c similarity index 100% rename from drivers/gpu/drm/drm_dp_cec.c rename to drivers/gpu/drm/dp/drm_dp_cec.c diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/dp/drm_dp_dual_mode_helper.c similarity index 100% rename from drivers/gpu/drm/drm_dp_dual_mode_helper.c rename to drivers/gpu/drm/dp/drm_dp_dual_mode_helper.c diff --git a/drivers/gpu/drm/drm_dp_helper_internal.h b/drivers/gpu/drm/dp/drm_dp_helper_internal.h similarity index 100% rename from drivers/gpu/drm/drm_dp_helper_internal.h rename to drivers/gpu/drm/dp/drm_dp_helper_internal.h diff --git a/drivers/gpu/drm/dp/drm_dp_helper_mod.c b/drivers/gpu/drm/dp/drm_dp_helper_mod.c new file mode 100644 index 000000000000..db753de24000 --- /dev/null +++ b/drivers/gpu/drm/dp/drm_dp_helper_mod.c @@ -0,0 +1,22 @@ +// SPDX-License-Identifier: MIT + +#include <linux/module.h> + +#include "drm_dp_helper_internal.h" + +MODULE_DESCRIPTION("DRM DisplayPort helper"); +MODULE_LICENSE("GPL and additional rights"); + +static int __init drm_dp_helper_module_init(void) +{ + return drm_dp_aux_dev_init(); +} + +static void __exit drm_dp_helper_module_exit(void) +{ + /* Call exit functions from specific dp helpers here */ + drm_dp_aux_dev_exit(); +} + +module_init(drm_dp_helper_module_init); +module_exit(drm_dp_helper_module_exit); diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/dp/drm_dp_mst_topology.c similarity index 100% rename from drivers/gpu/drm/drm_dp_mst_topology.c rename to drivers/gpu/drm/dp/drm_dp_mst_topology.c diff --git a/drivers/gpu/drm/drm_dp_mst_topology_internal.h b/drivers/gpu/drm/dp/drm_dp_mst_topology_internal.h similarity index 100% rename from drivers/gpu/drm/drm_dp_mst_topology_internal.h rename to drivers/gpu/drm/dp/drm_dp_mst_topology_internal.h diff --git a/drivers/gpu/drm/drm_kms_helper_common.c b/drivers/gpu/drm/drm_kms_helper_common.c index 88260d26409c..8be20080cd8d 100644 --- a/drivers/gpu/drm/drm_kms_helper_common.c +++ b/drivers/gpu/drm/drm_kms_helper_common.c @@ -29,7 +29,6 @@ #include <drm/drm_print.h> -#include "drm_dp_helper_internal.h" #include "drm_crtc_helper_internal.h" MODULE_AUTHOR("David Airlie, Jesse Barnes"); @@ -62,17 +61,3 @@ MODULE_PARM_DESC(edid_firmware, "DEPRECATED. Use drm.edid_firmware module parameter instead."); #endif - -static int __init drm_kms_helper_init(void) -{ - return drm_dp_aux_dev_init(); -} - -static void __exit drm_kms_helper_exit(void) -{ - /* Call exit functions from specific kms helpers here */ - drm_dp_aux_dev_exit(); -} - -module_init(drm_kms_helper_init); -module_exit(drm_kms_helper_exit); diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index a4c94dc2e216..b68e8b551b83 100644 --- a/drivers/gpu/drm/i915/Kconfig +++ b/drivers/gpu/drm/i915/Kconfig @@ -9,6 +9,7 @@ config DRM_I915 # the shmem_readpage() which depends upon tmpfs select SHMEM select TMPFS + select DRM_DP_HELPER select DRM_KMS_HELPER select DRM_PANEL select DRM_MIPI_DSI diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig index 39197b4beea7..75015b0e165e 100644 --- a/drivers/gpu/drm/msm/Kconfig +++ b/drivers/gpu/drm/msm/Kconfig @@ -12,6 +12,7 @@ config DRM_MSM select IOMMU_IO_PGTABLE select QCOM_MDT_LOADER if ARCH_QCOM select REGULATOR + select DRM_DP_HELPER select DRM_KMS_HELPER select DRM_PANEL select DRM_BRIDGE diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig index 9436310d0854..3ec690b6f0b4 100644 --- a/drivers/gpu/drm/nouveau/Kconfig +++ b/drivers/gpu/drm/nouveau/Kconfig @@ -4,6 +4,7 @@ config DRM_NOUVEAU depends on DRM && PCI && MMU select IOMMU_API select FW_LOADER + select DRM_DP_HELPER select DRM_KMS_HELPER select DRM_TTM select DRM_TTM_HELPER diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig index 9f1ecefc3933..d59dca5efb52 100644 --- a/drivers/gpu/drm/rockchip/Kconfig +++ b/drivers/gpu/drm/rockchip/Kconfig @@ -2,6 +2,7 @@ config DRM_ROCKCHIP tristate "DRM Support for Rockchip" depends on DRM && ROCKCHIP_IOMMU + select DRM_DP_HELPER select DRM_GEM_CMA_HELPER select DRM_KMS_HELPER select DRM_PANEL diff --git a/drivers/gpu/drm/tegra/Kconfig b/drivers/gpu/drm/tegra/Kconfig index 1650a448eabd..dc88adc7ba40 100644 --- a/drivers/gpu/drm/tegra/Kconfig +++ b/drivers/gpu/drm/tegra/Kconfig @@ -5,6 +5,7 @@ config DRM_TEGRA depends on COMMON_CLK depends on DRM depends on OF + select DRM_DP_HELPER select DRM_KMS_HELPER select DRM_MIPI_DSI select DRM_PANEL diff --git a/drivers/gpu/drm/xlnx/Kconfig b/drivers/gpu/drm/xlnx/Kconfig index d8d38d86d5c6..06cf477dbcdd 100644 --- a/drivers/gpu/drm/xlnx/Kconfig +++ b/drivers/gpu/drm/xlnx/Kconfig @@ -6,6 +6,7 @@ config DRM_ZYNQMP_DPSUB depends on PHY_XILINX_ZYNQMP depends on XILINX_ZYNQMP_DPDMA select DMA_ENGINE + select DRM_DP_HELPER select DRM_GEM_CMA_HELPER select DRM_KMS_HELPER select GENERIC_PHY
Move DisplayPort functions into a separate module to reduce the size of the KMS helpers. Select DRM_DP_HELPER for all users of the code. To avoid naming conflicts, rename drm_dp_helper.c to drm_dp.c This change can help to reduce the size of the kernel binary. Some numbers from a x86-64 test build: Before: drm_kms_helper.ko: 447480 bytes After: drm_dp_helper.ko: 216632 bytes drm_kms_helper.ko: 239424 bytes For early-boot graphics, generic DRM drivers, such as simpledrm, require DRM KMS helpers to be built into the kernel. Generic helper functions for DisplayPort take up a significant portion of DRM KMS helper library. These functions are not used by generic drivers and can be loaded as a module. v2: * move DP helper code into dp/ (Jani) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/gpu/drm/Kconfig | 8 +++++++ drivers/gpu/drm/Makefile | 10 ++++----- drivers/gpu/drm/bridge/Kconfig | 4 ++++ drivers/gpu/drm/bridge/analogix/Kconfig | 2 ++ drivers/gpu/drm/bridge/cadence/Kconfig | 1 + drivers/gpu/drm/dp/Makefile | 7 ++++++ .../gpu/drm/{drm_dp_helper.c => dp/drm_dp.c} | 0 drivers/gpu/drm/{ => dp}/drm_dp_aux_dev.c | 0 drivers/gpu/drm/{ => dp}/drm_dp_cec.c | 0 .../drm/{ => dp}/drm_dp_dual_mode_helper.c | 0 .../gpu/drm/{ => dp}/drm_dp_helper_internal.h | 0 drivers/gpu/drm/dp/drm_dp_helper_mod.c | 22 +++++++++++++++++++ .../gpu/drm/{ => dp}/drm_dp_mst_topology.c | 0 .../{ => dp}/drm_dp_mst_topology_internal.h | 0 drivers/gpu/drm/drm_kms_helper_common.c | 15 ------------- drivers/gpu/drm/i915/Kconfig | 1 + drivers/gpu/drm/msm/Kconfig | 1 + drivers/gpu/drm/nouveau/Kconfig | 1 + drivers/gpu/drm/rockchip/Kconfig | 1 + drivers/gpu/drm/tegra/Kconfig | 1 + drivers/gpu/drm/xlnx/Kconfig | 1 + 21 files changed, 54 insertions(+), 21 deletions(-) create mode 100644 drivers/gpu/drm/dp/Makefile rename drivers/gpu/drm/{drm_dp_helper.c => dp/drm_dp.c} (100%) rename drivers/gpu/drm/{ => dp}/drm_dp_aux_dev.c (100%) rename drivers/gpu/drm/{ => dp}/drm_dp_cec.c (100%) rename drivers/gpu/drm/{ => dp}/drm_dp_dual_mode_helper.c (100%) rename drivers/gpu/drm/{ => dp}/drm_dp_helper_internal.h (100%) create mode 100644 drivers/gpu/drm/dp/drm_dp_helper_mod.c rename drivers/gpu/drm/{ => dp}/drm_dp_mst_topology.c (100%) rename drivers/gpu/drm/{ => dp}/drm_dp_mst_topology_internal.h (100%)