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drm/vram-helper: don't use ttm bo->offset v4

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Calculate GEM VRAM bo's offset within vram-helper without depending on
bo->offset.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/372938/
This commit is contained in:
Nirmoy Das 2020-06-24 20:26:46 +02:00 committed by Christian König
parent 8ef963ba2d
commit 46642a7d4d
1 changed files with 10 additions and 1 deletions
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11
drivers/gpu/drm/drm_gem_vram_helper.c
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@ -281,6 +281,15 @@ u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo)
}
EXPORT_SYMBOL(drm_gem_vram_mmap_offset);
static u64 drm_gem_vram_pg_offset(struct drm_gem_vram_object *gbo)
{
/* Keep TTM behavior for now, remove when drivers are audited */
if (WARN_ON_ONCE(!gbo->bo.mem.mm_node))
return 0;
return gbo->bo.mem.start;
}
/**
* drm_gem_vram_offset() - \
Returns a GEM VRAM object's offset in video memory
@ -297,7 +306,7 @@ s64 drm_gem_vram_offset(struct drm_gem_vram_object *gbo)
{
if (WARN_ON_ONCE(!gbo->pin_count))
return (s64)-ENODEV;
return gbo->bo.offset;
return drm_gem_vram_pg_offset(gbo) << PAGE_SHIFT;
}
EXPORT_SYMBOL(drm_gem_vram_offset);