diff options
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 111 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 135 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.h | 6 |
3 files changed, 142 insertions, 110 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index 270da14cba67..e5fcefa49f19 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -15,9 +15,6 @@ #include <linux/types.h> #include <linux/cpumask.h> #include <linux/qcom_scm.h> -#include <linux/dma-mapping.h> -#include <linux/of_address.h> -#include <linux/soc/qcom/mdt_loader.h> #include <linux/pm_opp.h> #include <linux/nvmem-consumer.h> #include <linux/slab.h> @@ -30,96 +27,6 @@ static void a5xx_dump(struct msm_gpu *gpu); #define GPU_PAS_ID 13 -static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname) -{ - struct device *dev = &gpu->pdev->dev; - const struct firmware *fw; - struct device_node *np, *mem_np; - struct resource r; - phys_addr_t mem_phys; - ssize_t mem_size; - void *mem_region = NULL; - int ret; - - if (!IS_ENABLED(CONFIG_ARCH_QCOM)) - return -EINVAL; - - np = of_get_child_by_name(dev->of_node, "zap-shader"); - if (!np) - return -ENODEV; - - mem_np = of_parse_phandle(np, "memory-region", 0); - of_node_put(np); - if (!mem_np) - return -EINVAL; - - ret = of_address_to_resource(mem_np, 0, &r); - of_node_put(mem_np); - if (ret) - return ret; - - mem_phys = r.start; - mem_size = resource_size(&r); - - /* Request the MDT file for the firmware */ - fw = adreno_request_fw(to_adreno_gpu(gpu), fwname); - if (IS_ERR(fw)) { - DRM_DEV_ERROR(dev, "Unable to load %s\n", fwname); - return PTR_ERR(fw); - } - - /* Figure out how much memory we need */ - mem_size = qcom_mdt_get_size(fw); - if (mem_size < 0) { - ret = mem_size; - goto out; - } - - /* Allocate memory for the firmware image */ - mem_region = memremap(mem_phys, mem_size, MEMREMAP_WC); - if (!mem_region) { - ret = -ENOMEM; - goto out; - } - - /* - * Load the rest of the MDT - * - * Note that we could be dealing with two different paths, since - * with upstream linux-firmware it would be in a qcom/ subdir.. - * adreno_request_fw() handles this, but qcom_mdt_load() does - * not. But since we've already gotten thru adreno_request_fw() - * we know which of the two cases it is: - */ - if (to_adreno_gpu(gpu)->fwloc == FW_LOCATION_LEGACY) { - ret = qcom_mdt_load(dev, fw, fwname, GPU_PAS_ID, - mem_region, mem_phys, mem_size, NULL); - } else { - char *newname; - - newname = kasprintf(GFP_KERNEL, "qcom/%s", fwname); - - ret = qcom_mdt_load(dev, fw, newname, GPU_PAS_ID, - mem_region, mem_phys, mem_size, NULL); - kfree(newname); - } - if (ret) - goto out; - - /* Send the image to the secure world */ - ret = qcom_scm_pas_auth_and_reset(GPU_PAS_ID); - if (ret) - DRM_DEV_ERROR(dev, "Unable to authorize the image\n"); - -out: - if (mem_region) - memunmap(mem_region); - - release_firmware(fw); - - return ret; -} - static void a5xx_flush(struct msm_gpu *gpu, struct msm_ringbuffer *ring) { struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); @@ -565,8 +472,6 @@ static int a5xx_zap_shader_resume(struct msm_gpu *gpu) static int a5xx_zap_shader_init(struct msm_gpu *gpu) { static bool loaded; - struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); - struct platform_device *pdev = gpu->pdev; int ret; /* @@ -576,23 +481,9 @@ static int a5xx_zap_shader_init(struct msm_gpu *gpu) if (loaded) return a5xx_zap_shader_resume(gpu); - /* We need SCM to be able to load the firmware */ - if (!qcom_scm_is_available()) { - DRM_DEV_ERROR(&pdev->dev, "SCM is not available\n"); - return -EPROBE_DEFER; - } - - /* Each GPU has a target specific zap shader firmware name to use */ - if (!adreno_gpu->info->zapfw) { - DRM_DEV_ERROR(&pdev->dev, - "Zap shader firmware file not specified for this target\n"); - return -ENODEV; - } - - ret = zap_shader_load_mdt(gpu, adreno_gpu->info->zapfw); + ret = adreno_zap_shader_load(gpu, GPU_PAS_ID); loaded = !ret; - return ret; } diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 6de08cfc38aa..6f7f4114afcf 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -19,13 +19,148 @@ #include <linux/ascii85.h> #include <linux/interconnect.h> +#include <linux/qcom_scm.h> #include <linux/kernel.h> +#include <linux/of_address.h> #include <linux/pm_opp.h> #include <linux/slab.h> +#include <linux/soc/qcom/mdt_loader.h> #include "adreno_gpu.h" #include "msm_gem.h" #include "msm_mmu.h" +static bool zap_available = true; + +static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname, + u32 pasid) +{ + struct device *dev = &gpu->pdev->dev; + const struct firmware *fw; + struct device_node *np, *mem_np; + struct resource r; + phys_addr_t mem_phys; + ssize_t mem_size; + void *mem_region = NULL; + int ret; + + if (!IS_ENABLED(CONFIG_ARCH_QCOM)) { + zap_available = false; + return -EINVAL; + } + + np = of_get_child_by_name(dev->of_node, "zap-shader"); + if (!np) { + zap_available = false; + return -ENODEV; + } + + mem_np = of_parse_phandle(np, "memory-region", 0); + of_node_put(np); + if (!mem_np) { + zap_available = false; + return -EINVAL; + } + + ret = of_address_to_resource(mem_np, 0, &r); + of_node_put(mem_np); + if (ret) + return ret; + + mem_phys = r.start; + mem_size = resource_size(&r); + + /* Request the MDT file for the firmware */ + fw = adreno_request_fw(to_adreno_gpu(gpu), fwname); + if (IS_ERR(fw)) { + DRM_DEV_ERROR(dev, "Unable to load %s\n", fwname); + return PTR_ERR(fw); + } + + /* Figure out how much memory we need */ + mem_size = qcom_mdt_get_size(fw); + if (mem_size < 0) { + ret = mem_size; + goto out; + } + + /* Allocate memory for the firmware image */ + mem_region = memremap(mem_phys, mem_size, MEMREMAP_WC); + if (!mem_region) { + ret = -ENOMEM; + goto out; + } + + /* + * Load the rest of the MDT + * + * Note that we could be dealing with two different paths, since + * with upstream linux-firmware it would be in a qcom/ subdir.. + * adreno_request_fw() handles this, but qcom_mdt_load() does + * not. But since we've already gotten through adreno_request_fw() + * we know which of the two cases it is: + */ + if (to_adreno_gpu(gpu)->fwloc == FW_LOCATION_LEGACY) { + ret = qcom_mdt_load(dev, fw, fwname, pasid, + mem_region, mem_phys, mem_size, NULL); + } else { + char *newname; + + newname = kasprintf(GFP_KERNEL, "qcom/%s", fwname); + + ret = qcom_mdt_load(dev, fw, newname, pasid, + mem_region, mem_phys, mem_size, NULL); + kfree(newname); + } + if (ret) + goto out; + + /* Send the image to the secure world */ + ret = qcom_scm_pas_auth_and_reset(pasid); + + /* + * If the scm call returns -EOPNOTSUPP we assume that this target + * doesn't need/support the zap shader so quietly fail + */ + if (ret == -EOPNOTSUPP) + zap_available = false; + else if (ret) + DRM_DEV_ERROR(dev, "Unable to authorize the image\n"); + +out: + if (mem_region) + memunmap(mem_region); + + release_firmware(fw); + + return ret; +} + +int adreno_zap_shader_load(struct msm_gpu *gpu, u32 pasid) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct platform_device *pdev = gpu->pdev; + + /* Short cut if we determine the zap shader isn't available/needed */ + if (!zap_available) + return -ENODEV; + + /* We need SCM to be able to load the firmware */ + if (!qcom_scm_is_available()) { + DRM_DEV_ERROR(&pdev->dev, "SCM is not available\n"); + return -EPROBE_DEFER; + } + + /* Each GPU has a target specific zap shader firmware name to use */ + if (!adreno_gpu->info->zapfw) { + zap_available = false; + DRM_DEV_ERROR(&pdev->dev, + "Zap shader firmware file not specified for this target\n"); + return -ENODEV; + } + + return zap_shader_load_mdt(gpu, adreno_gpu->info->zapfw, pasid); +} + int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value) { struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index 5db459bc28a7..0925606ec9b5 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -252,6 +252,12 @@ void adreno_gpu_state_destroy(struct msm_gpu_state *state); int adreno_gpu_state_get(struct msm_gpu *gpu, struct msm_gpu_state *state); int adreno_gpu_state_put(struct msm_gpu_state *state); +/* + * For a5xx and a6xx targets load the zap shader that is used to pull the GPU + * out of secure mode + */ +int adreno_zap_shader_load(struct msm_gpu *gpu, u32 pasid); + /* ringbuffer helpers (the parts that are adreno specific) */ static inline void |