| Message ID | 1503607075-28970-2-git-send-email-roy.pledge@nxp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Aug 24, 2017 at 04:37:45PM -0400, Roy Pledge wrote: > --- a/drivers/soc/fsl/qbman/bman_ccsr.c > +++ b/drivers/soc/fsl/qbman/bman_ccsr.c [...] > @@ -201,6 +202,38 @@ static int fsl_bman_probe(struct platform_device *pdev) > return -ENODEV; > } > > + /* > + * If FBPR memory wasn't defined using the qbman compatible string > + * try using the of_reserved_mem_device method > + */ > + if (!fbpr_a) { > + ret = of_reserved_mem_device_init(dev); > + if (ret) { > + dev_err(dev, "of_reserved_mem_device_init() failed 0x%x\n", > + ret); > + return -ENODEV; > + } > + mem_node = of_parse_phandle(dev->of_node, "memory-region", 0); > + if (mem_node) { > + ret = of_property_read_u64(mem_node, "size", &size); > + if (ret) { > + dev_err(dev, "FBPR: of_address_to_resource fails 0x%x\n", > + ret); > + return -ENODEV; > + } > + fbpr_sz = size; > + } else { > + dev_err(dev, "No memory-region found for FBPR\n"); > + return -ENODEV; > + } > + if (!dma_zalloc_coherent(dev, fbpr_sz, &fbpr_a, 0)) { > + dev_err(dev, "Alloc FBPR memory failed\n"); > + return -ENODEV; > + } > + } At a quick look, I think I spotted this pattern a couple of more times in the subsequent patch. Could it be moved to a common function?
diff --git a/drivers/soc/fsl/qbman/bman_ccsr.c b/drivers/soc/fsl/qbman/bman_ccsr.c index eaa9585..2182236 100644 --- a/drivers/soc/fsl/qbman/bman_ccsr.c +++ b/drivers/soc/fsl/qbman/bman_ccsr.c @@ -170,10 +170,11 @@ static int fsl_bman_probe(struct platform_device *pdev) { int ret, err_irq; struct device *dev = &pdev->dev; - struct device_node *node = dev->of_node; + struct device_node *mem_node, *node = dev->of_node; struct resource *res; u16 id, bm_pool_cnt; u8 major, minor; + u64 size; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -201,6 +202,38 @@ static int fsl_bman_probe(struct platform_device *pdev) return -ENODEV; } + /* + * If FBPR memory wasn't defined using the qbman compatible string + * try using the of_reserved_mem_device method + */ + if (!fbpr_a) { + ret = of_reserved_mem_device_init(dev); + if (ret) { + dev_err(dev, "of_reserved_mem_device_init() failed 0x%x\n", + ret); + return -ENODEV; + } + mem_node = of_parse_phandle(dev->of_node, "memory-region", 0); + if (mem_node) { + ret = of_property_read_u64(mem_node, "size", &size); + if (ret) { + dev_err(dev, "FBPR: of_address_to_resource fails 0x%x\n", + ret); + return -ENODEV; + } + fbpr_sz = size; + } else { + dev_err(dev, "No memory-region found for FBPR\n"); + return -ENODEV; + } + if (!dma_zalloc_coherent(dev, fbpr_sz, &fbpr_a, 0)) { + dev_err(dev, "Alloc FBPR memory failed\n"); + return -ENODEV; + } + } + + dev_dbg(dev, "Allocated FBPR 0x%llx 0x%zx\n", fbpr_a, fbpr_sz); + bm_set_memory(fbpr_a, fbpr_sz); err_irq = platform_get_irq(pdev, 0); diff --git a/drivers/soc/fsl/qbman/bman_priv.h b/drivers/soc/fsl/qbman/bman_priv.h index f6896a2..765a4bf 100644 --- a/drivers/soc/fsl/qbman/bman_priv.h +++ b/drivers/soc/fsl/qbman/bman_priv.h @@ -33,6 +33,9 @@ #include "dpaa_sys.h" #include <soc/fsl/bman.h> +#include <linux/dma-contiguous.h> +#include <linux/of_address.h> +#include <linux/dma-mapping.h> /* Portal processing (interrupt) sources */ #define BM_PIRQ_RCRI 0x00000002 /* RCR Ring (below threshold) */
Use the shared-memory-pool mechanism for free buffer proxy record area allocation. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> --- drivers/soc/fsl/qbman/bman_ccsr.c | 35 ++++++++++++++++++++++++++++++++++- drivers/soc/fsl/qbman/bman_priv.h | 3 +++ 2 files changed, 37 insertions(+), 1 deletion(-)