From: Rob Clark robdclark@chromium.org
It was always expected to have a use for this some day, so we left a placeholder. Now we do. (And I expect another use in the not too distant future when we start allowing userspace to allocate GPU iova.)
Signed-off-by: Rob Clark robdclark@chromium.org --- drivers/gpu/drm/msm/adreno/a2xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/adreno_gpu.c | 10 +++++++++ drivers/gpu/drm/msm/adreno/adreno_gpu.h | 2 ++ drivers/gpu/drm/msm/msm_drv.c | 20 ++++++++++++++++++ drivers/gpu/drm/msm/msm_gpu.h | 2 ++ include/uapi/drm/msm_drm.h | 27 ++++++++++++++----------- 10 files changed, 54 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c index 22e8295a5e2b..6c9a747eb4ad 100644 --- a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c @@ -471,6 +471,7 @@ static u32 a2xx_get_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring) static const struct adreno_gpu_funcs funcs = { .base = { .get_param = adreno_get_param, + .set_param = adreno_set_param, .hw_init = a2xx_hw_init, .pm_suspend = msm_gpu_pm_suspend, .pm_resume = msm_gpu_pm_resume, diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c index 2e481e2692ba..0ab0e1dd8bbb 100644 --- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c @@ -486,6 +486,7 @@ static u32 a3xx_get_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring) static const struct adreno_gpu_funcs funcs = { .base = { .get_param = adreno_get_param, + .set_param = adreno_set_param, .hw_init = a3xx_hw_init, .pm_suspend = msm_gpu_pm_suspend, .pm_resume = msm_gpu_pm_resume, diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c index c5524d6e8705..0c6b2a6d0b4c 100644 --- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c @@ -621,6 +621,7 @@ static u32 a4xx_get_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring) static const struct adreno_gpu_funcs funcs = { .base = { .get_param = adreno_get_param, + .set_param = adreno_set_param, .hw_init = a4xx_hw_init, .pm_suspend = a4xx_pm_suspend, .pm_resume = a4xx_pm_resume, diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index 3d28fcf841a6..407f50a15faa 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -1700,6 +1700,7 @@ static uint32_t a5xx_get_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring) static const struct adreno_gpu_funcs funcs = { .base = { .get_param = adreno_get_param, + .set_param = adreno_set_param, .hw_init = a5xx_hw_init, .pm_suspend = a5xx_pm_suspend, .pm_resume = a5xx_pm_resume, diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index 7d23c741db4a..237c2e7a7baa 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -1800,6 +1800,7 @@ static int a6xx_set_supported_hw(struct device *dev, struct adreno_rev rev) static const struct adreno_gpu_funcs funcs = { .base = { .get_param = adreno_get_param, + .set_param = adreno_set_param, .hw_init = a6xx_hw_init, .pm_suspend = a6xx_pm_suspend, .pm_resume = a6xx_pm_resume, diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 15c8997b7251..6a37d409653b 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -283,6 +283,16 @@ int adreno_get_param(struct msm_gpu *gpu, struct msm_file_private *ctx, } }
+int adreno_set_param(struct msm_gpu *gpu, struct msm_file_private *ctx, + uint32_t param, uint64_t value) +{ + switch (param) { + default: + DBG("%s: invalid param: %u", gpu->name, param); + return -EINVAL; + } +} + const struct firmware * adreno_request_fw(struct adreno_gpu *adreno_gpu, const char *fwname) { diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index b1ee453d627d..0490c5fbb780 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -282,6 +282,8 @@ static inline int adreno_is_a650_family(struct adreno_gpu *gpu)
int adreno_get_param(struct msm_gpu *gpu, struct msm_file_private *ctx, uint32_t param, uint64_t *value); +int adreno_set_param(struct msm_gpu *gpu, struct msm_file_private *ctx, + uint32_t param, uint64_t value); const struct firmware *adreno_request_fw(struct adreno_gpu *adreno_gpu, const char *fwname); struct drm_gem_object *adreno_fw_create_bo(struct msm_gpu *gpu, diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index fdf401e6f09e..ca9a8a866292 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -614,6 +614,25 @@ static int msm_ioctl_get_param(struct drm_device *dev, void *data, args->param, &args->value); }
+static int msm_ioctl_set_param(struct drm_device *dev, void *data, + struct drm_file *file) +{ + struct msm_drm_private *priv = dev->dev_private; + struct drm_msm_param *args = data; + struct msm_gpu *gpu; + + if (args->pipe != MSM_PIPE_3D0) + return -EINVAL; + + gpu = priv->gpu; + + if (!gpu) + return -ENXIO; + + return gpu->funcs->set_param(gpu, file->driver_priv, + args->param, args->value); +} + static int msm_ioctl_gem_new(struct drm_device *dev, void *data, struct drm_file *file) { @@ -899,6 +918,7 @@ static int msm_ioctl_submitqueue_close(struct drm_device *dev, void *data,
static const struct drm_ioctl_desc msm_ioctls[] = { DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param, DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(MSM_SET_PARAM, msm_ioctl_set_param, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_INFO, msm_ioctl_gem_info, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep, DRM_RENDER_ALLOW), diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index ad4fe05dee03..fde9a29f884e 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -45,6 +45,8 @@ struct msm_gpu_config { struct msm_gpu_funcs { int (*get_param)(struct msm_gpu *gpu, struct msm_file_private *ctx, uint32_t param, uint64_t *value); + int (*set_param)(struct msm_gpu *gpu, struct msm_file_private *ctx, + uint32_t param, uint64_t value); int (*hw_init)(struct msm_gpu *gpu); int (*pm_suspend)(struct msm_gpu *gpu); int (*pm_resume)(struct msm_gpu *gpu); diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h index 6cd45a7f6947..a1bb2a17a8b9 100644 --- a/include/uapi/drm/msm_drm.h +++ b/include/uapi/drm/msm_drm.h @@ -67,16 +67,20 @@ struct drm_msm_timespec { __s64 tv_nsec; /* nanoseconds */ };
-#define MSM_PARAM_GPU_ID 0x01 -#define MSM_PARAM_GMEM_SIZE 0x02 -#define MSM_PARAM_CHIP_ID 0x03 -#define MSM_PARAM_MAX_FREQ 0x04 -#define MSM_PARAM_TIMESTAMP 0x05 -#define MSM_PARAM_GMEM_BASE 0x06 -#define MSM_PARAM_PRIORITIES 0x07 /* The # of priority levels */ -#define MSM_PARAM_PP_PGTABLE 0x08 /* => 1 for per-process pagetables, else 0 */ -#define MSM_PARAM_FAULTS 0x09 -#define MSM_PARAM_SUSPENDS 0x0a +/* Below "RO" indicates a read-only param, "WO" indicates write-only, and + * "RW" indicates a param that can be both read (GET_PARAM) and written + * (SET_PARAM) + */ +#define MSM_PARAM_GPU_ID 0x01 /* RO */ +#define MSM_PARAM_GMEM_SIZE 0x02 /* RO */ +#define MSM_PARAM_CHIP_ID 0x03 /* RO */ +#define MSM_PARAM_MAX_FREQ 0x04 /* RO */ +#define MSM_PARAM_TIMESTAMP 0x05 /* RO */ +#define MSM_PARAM_GMEM_BASE 0x06 /* RO */ +#define MSM_PARAM_PRIORITIES 0x07 /* RO: The # of priority levels */ +#define MSM_PARAM_PP_PGTABLE 0x08 /* RO: Deprecated, always returns zero */ +#define MSM_PARAM_FAULTS 0x09 /* RO */ +#define MSM_PARAM_SUSPENDS 0x0a /* RO */
/* For backwards compat. The original support for preemption was based on * a single ring per priority level so # of priority levels equals the # @@ -335,9 +339,7 @@ struct drm_msm_submitqueue_query { };
#define DRM_MSM_GET_PARAM 0x00 -/* placeholder: #define DRM_MSM_SET_PARAM 0x01 - */ #define DRM_MSM_GEM_NEW 0x02 #define DRM_MSM_GEM_INFO 0x03 #define DRM_MSM_GEM_CPU_PREP 0x04 @@ -353,6 +355,7 @@ struct drm_msm_submitqueue_query { #define DRM_MSM_SUBMITQUEUE_QUERY 0x0C
#define DRM_IOCTL_MSM_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GET_PARAM, struct drm_msm_param) +#define DRM_IOCTL_MSM_SET_PARAM DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_SET_PARAM, struct drm_msm_param) #define DRM_IOCTL_MSM_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_NEW, struct drm_msm_gem_new) #define DRM_IOCTL_MSM_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_INFO, struct drm_msm_gem_info) #define DRM_IOCTL_MSM_GEM_CPU_PREP DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_GEM_CPU_PREP, struct drm_msm_gem_cpu_prep)