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| author |  Rob Clark <robdclark@chromium.org>
| 2019-04-15 16:55:45 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org>
| 2019-04-19 11:49:42 -0700 |
| commit | d674c963af7470b6394b4b7f98cf2716b3a757d7 (patch) | |
| tree | 5c0a4c4b01f594a92c08db80efa1bf7c63cbb4ef | |
| parent | drm/msm: a5xx: fix possible object reference leak (diff) | |
| download | linux-d674c963af7470b6394b4b7f98cf2716b3a757d7.tar.gz linux-d674c963af7470b6394b4b7f98cf2716b3a757d7.tar.bz2 linux-d674c963af7470b6394b4b7f98cf2716b3a757d7.zip | |
drm/msm/gpu: add per-process pagetables param
For now it always returns '0' (false), but once the iommu work is in
place to enable per-process pagetables we can update the value returned.
Userspace needs to know this to make an informed decision about exposing
KHR_robustness.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 | ||||
| -rw-r--r-- | include/uapi/drm/msm_drm.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 27898475cdf4..7727917806ce 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -63,6 +63,9 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value) case MSM_PARAM_NR_RINGS: *value = gpu->nr_rings; return 0; + case MSM_PARAM_PP_PGTABLE: + *value = 0; + return 0; default: DBG("%s: invalid param: %u", gpu->name, param); return -EINVAL; diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h index 91a16b333c69..a9fdcf1689ce 100644 --- a/include/uapi/drm/msm_drm.h +++ b/include/uapi/drm/msm_drm.h @@ -74,6 +74,7 @@ struct drm_msm_timespec { #define MSM_PARAM_TIMESTAMP 0x05 #define MSM_PARAM_GMEM_BASE 0x06 #define MSM_PARAM_NR_RINGS 0x07 +#define MSM_PARAM_PP_PGTABLE 0x08 /* => 1 for per-process pagetables, else 0 */ struct drm_msm_param { __u32 pipe; /* in, MSM_PIPE_x */ |