diff options
| author |   Jonathan Marek <jonathan@marek.ca> | 2021-04-23 15:08:20 -0400 |
|---|---|---|
| committer |   Rob Clark <robdclark@chromium.org> | 2021-06-23 07:32:14 -0700 |
| commit | d12e339044a00ecae993b06672c38c168a92f0c3 (patch) | |
| tree | b53c35fec2a587fb9d6e7f3807d2fb4f9b123b6e /drivers/gpu/drm/msm/msm_gem.c | |
| parent | drm/msm: use the right pgprot when mapping BOs in the kernel (diff) | |
| download | linux-dev-d12e339044a00ecae993b06672c38c168a92f0c3.tar.xz linux-dev-d12e339044a00ecae993b06672c38c168a92f0c3.zip | |
drm/msm: add MSM_BO_CACHED_COHERENT
Add a new cache mode for creating coherent host-cached BOs.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Link: https://lore.kernel.org/r/20210423190833.25319-5-jonathan@marek.ca
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index ffe94bd97219..8d19a0f289fd 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -445,6 +445,9 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj, if (msm_obj->flags & MSM_BO_MAP_PRIV) prot |= IOMMU_PRIV; + if (msm_obj->flags & MSM_BO_CACHED_COHERENT) + prot |= IOMMU_CACHE; + GEM_WARN_ON(!msm_gem_is_locked(obj)); if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) @@ -1158,6 +1161,7 @@ static int msm_gem_new_impl(struct drm_device *dev, uint32_t size, uint32_t flags, struct drm_gem_object **obj) { + struct msm_drm_private *priv = dev->dev_private; struct msm_gem_object *msm_obj; switch (flags & MSM_BO_CACHE_MASK) { @@ -1165,6 +1169,10 @@ static int msm_gem_new_impl(struct drm_device *dev, case MSM_BO_CACHED: case MSM_BO_WC: break; + case MSM_BO_CACHED_COHERENT: + if (priv->has_cached_coherent) + break; + /* fallthrough */ default: DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", (flags & MSM_BO_CACHE_MASK)); |