6.8-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michel Dänzer mdaenzer@redhat.com
commit 8d2c930735f850e5be6860aeb39b27ac73ca192f upstream.
It incorrectly claimed a resource isn't CPU visible if it's located at the very end of CPU visible VRAM.
Fixes: a6ff969fe9cb ("drm/amdgpu: fix visible VRAM handling during faults") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3343 Reviewed-by: Christian König christian.koenig@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Reported-and-Tested-by: Jeremy Day jsday@noreason.ca Signed-off-by: Michel Dänzer mdaenzer@redhat.com Signed-off-by: Alex Deucher alexander.deucher@amd.com CC: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -432,7 +432,7 @@ bool amdgpu_res_cpu_visible(struct amdgp
amdgpu_res_first(res, 0, res->size, &cursor); while (cursor.remaining) { - if ((cursor.start + cursor.size) >= adev->gmc.visible_vram_size) + if ((cursor.start + cursor.size) > adev->gmc.visible_vram_size) return false; amdgpu_res_next(&cursor, cursor.size); }