From: Rob Clark robdclark@chromium.org
The 64b value field is already suffient to hold a pointer instead of immediate, but we also need a length field.
Signed-off-by: Rob Clark robdclark@chromium.org --- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 12 ++++++++++-- drivers/gpu/drm/msm/adreno/adreno_gpu.h | 4 ++-- drivers/gpu/drm/msm/msm_drv.c | 8 ++++---- drivers/gpu/drm/msm/msm_gpu.h | 4 ++-- drivers/gpu/drm/msm/msm_rd.c | 5 +++-- include/uapi/drm/msm_drm.h | 2 ++ 6 files changed, 23 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 9efc84929be0..3d307b34854d 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -229,10 +229,14 @@ adreno_iommu_create_address_space(struct msm_gpu *gpu, }
int adreno_get_param(struct msm_gpu *gpu, struct msm_file_private *ctx, - uint32_t param, uint64_t *value) + uint32_t param, uint64_t *value, uint32_t *len) { struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+ /* No pointer params yet */ + if (*len != 0) + return -EINVAL; + switch (param) { case MSM_PARAM_GPU_ID: *value = adreno_gpu->info->revn; @@ -284,8 +288,12 @@ 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) + uint32_t param, uint64_t value, uint32_t len) { + /* No pointer params yet */ + if (len != 0) + return -EINVAL; + switch (param) { case MSM_PARAM_SYSPROF: if (!capable(CAP_SYS_ADMIN)) diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index 0490c5fbb780..ab3b5ef80332 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -281,9 +281,9 @@ 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); + uint32_t param, uint64_t *value, uint32_t *len); int adreno_set_param(struct msm_gpu *gpu, struct msm_file_private *ctx, - uint32_t param, uint64_t value); + uint32_t param, uint64_t value, uint32_t len); 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 780f9748aaaf..a5eed5738ac8 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -610,7 +610,7 @@ static int msm_ioctl_get_param(struct drm_device *dev, void *data, /* for now, we just have 3d pipe.. eventually this would need to * be more clever to dispatch to appropriate gpu module: */ - if (args->pipe != MSM_PIPE_3D0) + if ((args->pipe != MSM_PIPE_3D0) || (args->pad != 0)) return -EINVAL;
gpu = priv->gpu; @@ -619,7 +619,7 @@ static int msm_ioctl_get_param(struct drm_device *dev, void *data, return -ENXIO;
return gpu->funcs->get_param(gpu, file->driver_priv, - args->param, &args->value); + args->param, &args->value, &args->len); }
static int msm_ioctl_set_param(struct drm_device *dev, void *data, @@ -629,7 +629,7 @@ static int msm_ioctl_set_param(struct drm_device *dev, void *data, struct drm_msm_param *args = data; struct msm_gpu *gpu;
- if (args->pipe != MSM_PIPE_3D0) + if ((args->pipe != MSM_PIPE_3D0) || (args->pad != 0)) return -EINVAL;
gpu = priv->gpu; @@ -638,7 +638,7 @@ static int msm_ioctl_set_param(struct drm_device *dev, void *data, return -ENXIO;
return gpu->funcs->set_param(gpu, file->driver_priv, - args->param, args->value); + args->param, args->value, args->len); }
static int msm_ioctl_gem_new(struct drm_device *dev, void *data, diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index a84140055920..c28c2ad9f52e 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -44,9 +44,9 @@ 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); + uint32_t param, uint64_t *value, uint32_t *len); int (*set_param)(struct msm_gpu *gpu, struct msm_file_private *ctx, - uint32_t param, uint64_t value); + uint32_t param, uint64_t value, uint32_t len); int (*hw_init)(struct msm_gpu *gpu); int (*pm_suspend)(struct msm_gpu *gpu); int (*pm_resume)(struct msm_gpu *gpu); diff --git a/drivers/gpu/drm/msm/msm_rd.c b/drivers/gpu/drm/msm/msm_rd.c index 9d835331f214..a92ffde53f0b 100644 --- a/drivers/gpu/drm/msm/msm_rd.c +++ b/drivers/gpu/drm/msm/msm_rd.c @@ -180,6 +180,7 @@ static int rd_open(struct inode *inode, struct file *file) struct msm_gpu *gpu = priv->gpu; uint64_t val; uint32_t gpu_id; + uint32_t zero = 0; int ret = 0;
if (!gpu) @@ -200,12 +201,12 @@ static int rd_open(struct inode *inode, struct file *file) * * Note: These particular params do not require a context */ - gpu->funcs->get_param(gpu, NULL, MSM_PARAM_GPU_ID, &val); + gpu->funcs->get_param(gpu, NULL, MSM_PARAM_GPU_ID, &val, &zero); gpu_id = val;
rd_write_section(rd, RD_GPU_ID, &gpu_id, sizeof(gpu_id));
- gpu->funcs->get_param(gpu, NULL, MSM_PARAM_CHIP_ID, &val); + gpu->funcs->get_param(gpu, NULL, MSM_PARAM_CHIP_ID, &val, &zero); rd_write_section(rd, RD_CHIP_ID, &val, sizeof(val));
out: diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h index 07efc8033492..0aa1a8cb4e0d 100644 --- a/include/uapi/drm/msm_drm.h +++ b/include/uapi/drm/msm_drm.h @@ -95,6 +95,8 @@ struct drm_msm_param { __u32 pipe; /* in, MSM_PIPE_x */ __u32 param; /* in, MSM_PARAM_x */ __u64 value; /* out (get_param) or in (set_param) */ + __u32 len; /* zero for non-pointer params */ + __u32 pad; /* must be zero */ };
/*