drm/amdgpu: remove invalid resource->start check v2

From Christian Koenig
db74904a93a370807001e5fd64b5850a61f2bf65 in linux-6.6.y/6.6.29
ca7c4507ba87e9fc22e0ecfa819c3664b3e8287b in mainline linux

diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_ttm.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_ttm.c
index 9927850..7e2d2a8 100644 (file)
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_ttm.c
@@ -562,7 +562,6 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_device *bdev,
                                     struct ttm_resource *mem)
 {
        struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
-       size_t bus_size = (size_t)mem->size;
 
        switch (mem->mem_type) {
        case TTM_PL_SYSTEM:
@@ -573,9 +572,6 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_device *bdev,
                break;
        case TTM_PL_VRAM:
                mem->bus.offset = mem->start << PAGE_SHIFT;
-               /* check if it's visible */
-               if ((mem->bus.offset + bus_size) > adev->gmc.visible_vram_size)
-                       return -EINVAL;
 
                if (adev->mman.aper_base_kaddr &&
                    mem->placement & TTM_PL_FLAG_CONTIGUOUS)