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drm/msm: Split out helper to get iommu prot flags

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We'll re-use this in the vm_bind path.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Tested-by: Antonino Maniscalco <antomani103@gmail.com>
Reviewed-by: Antonino Maniscalco <antomani103@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/661484/
This commit is contained in:
Rob Clark 2025-06-29 13:12:59 -07:00 committed by Rob Clark
parent 37889600f5
commit 62a28e272b
2 changed files with 11 additions and 2 deletions
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12
drivers/gpu/drm/msm/msm_gem.c
View File

@ -462,10 +462,9 @@ static struct drm_gpuva *get_vma_locked(struct drm_gem_object *obj,
return vma;
}
int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct drm_gpuva *vma)
int msm_gem_prot(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct page **pages;
int prot = IOMMU_READ;
if (!(msm_obj->flags & MSM_BO_GPU_READONLY))
@ -477,6 +476,15 @@ int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct drm_gpuva *vma)
if (msm_obj->flags & MSM_BO_CACHED_COHERENT)
prot |= IOMMU_CACHE;
return prot;
}
int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct drm_gpuva *vma)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct page **pages;
int prot = msm_gem_prot(obj);
msm_gem_assert_locked(obj);
pages = msm_gem_get_pages_locked(obj, MSM_MADV_WILLNEED);

1
drivers/gpu/drm/msm/msm_gem.h
View File

@ -158,6 +158,7 @@ struct msm_gem_object {
#define to_msm_bo(x) container_of(x, struct msm_gem_object, base)
uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
int msm_gem_prot(struct drm_gem_object *obj);
int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct drm_gpuva *vma);
void msm_gem_unpin_locked(struct drm_gem_object *obj);
void msm_gem_unpin_active(struct drm_gem_object *obj);