On Thu, Aug 23, 2018 at 11:29 PM Vikash Garodia <vgarodia@xxxxxxxxxxxxxx> wrote:
>
> Separate firmware loading part into a new function.
>
> Signed-off-by: Vikash Garodia <vgarodia@xxxxxxxxxxxxxx>
> ---
> drivers/media/platform/qcom/venus/core.c | 4 +-
> drivers/media/platform/qcom/venus/firmware.c | 55 ++++++++++++++++++----------
> drivers/media/platform/qcom/venus/firmware.h | 2 +-
> 3 files changed, 38 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index bb6add9..75b9785 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -84,7 +84,7 @@ static void venus_sys_error_handler(struct work_struct *work)
>
> pm_runtime_get_sync(core->dev);
>
> - ret |= venus_boot(core->dev, core->res->fwname);
> + ret |= venus_boot(core);
>
> ret |= hfi_core_resume(core, true);
>
> @@ -284,7 +284,7 @@ static int venus_probe(struct platform_device *pdev)
> if (ret < 0)
> goto err_runtime_disable;
>
> - ret = venus_boot(dev, core->res->fwname);
> + ret = venus_boot(core);
> if (ret)
> goto err_runtime_disable;
>
> diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
> index a9d042e..34224eb 100644
> --- a/drivers/media/platform/qcom/venus/firmware.c
> +++ b/drivers/media/platform/qcom/venus/firmware.c
> @@ -60,20 +60,18 @@ int venus_set_hw_state(struct venus_core *core, bool resume)
> return 0;
> }
>
> -int venus_boot(struct device *dev, const char *fwname)
> +static int venus_load_fw(struct venus_core *core, const char *fwname,
> + phys_addr_t *mem_phys, size_t *mem_size)
Following the remarks of the previous patch, you would have mem_phys
and mem_size as members of venus_core (probably renamed as fw_mem_addr
and fw_mem_size).
> {
> const struct firmware *mdt;
> struct device_node *node;
> - phys_addr_t mem_phys;
> + struct device *dev;
> struct resource r;
> ssize_t fw_size;
> - size_t mem_size;
> void *mem_va;
> int ret;
>
> - if (!IS_ENABLED(CONFIG_QCOM_MDT_LOADER) || !qcom_scm_is_available())
> - return -EPROBE_DEFER;
!IS_ENABLED(CONFIG_QCOM_MDT_LOADER) is not a condition that can change
at runtime, and returning -EPROBE_DEFER in that case seems erroneous
to me. Instead, wouldn't it make more sense to make the driver depend
on QCOM_MDT_LOADER?
> -
> + dev = core->dev;
> node = of_parse_phandle(dev->of_node, "memory-region", 0);
> if (!node) {
> dev_err(dev, "no memory-region specified\n");
> @@ -84,16 +82,16 @@ int venus_boot(struct device *dev, const char *fwname)
> if (ret)
> return ret;
>
> - mem_phys = r.start;
> - mem_size = resource_size(&r);
> + *mem_phys = r.start;
> + *mem_size = resource_size(&r);
>
> - if (mem_size < VENUS_FW_MEM_SIZE)
> + if (*mem_size < VENUS_FW_MEM_SIZE)
> return -EINVAL;
>
> - mem_va = memremap(r.start, mem_size, MEMREMAP_WC);
> + mem_va = memremap(r.start, *mem_size, MEMREMAP_WC);
> if (!mem_va) {
> dev_err(dev, "unable to map memory region: %pa+%zx\n",
> - &r.start, mem_size);
> + &r.start, *mem_size);
> return -ENOMEM;
> }
>
> @@ -108,23 +106,40 @@ int venus_boot(struct device *dev, const char *fwname)
> goto err_unmap;
> }
>
> - ret = qcom_mdt_load(dev, mdt, fwname, VENUS_PAS_ID, mem_va, mem_phys,
> - mem_size, NULL);
> + if (core->no_tz)
> + ret = qcom_mdt_load_no_init(dev, mdt, fwname, VENUS_PAS_ID,
> + mem_va, *mem_phys, *mem_size, NULL);
> + else
> + ret = qcom_mdt_load(dev, mdt, fwname, VENUS_PAS_ID,
> + mem_va, *mem_phys, *mem_size, NULL);
>
> release_firmware(mdt);
>
> - if (ret)
> - goto err_unmap;
> -
> - ret = qcom_scm_pas_auth_and_reset(VENUS_PAS_ID);
> - if (ret)
> - goto err_unmap;
> -
> err_unmap:
> memunmap(mem_va);
> return ret;
> }
>
> +int venus_boot(struct venus_core *core)
> +{
> + struct device *dev = core->dev;
> + phys_addr_t mem_phys;
> + size_t mem_size;
> + int ret;
> +
> + if (!IS_ENABLED(CONFIG_QCOM_MDT_LOADER) ||
> + (!core->no_tz && !qcom_scm_is_available()))
> + return -EPROBE_DEFER;
Same remark as above here.
