From: Christian König christian.koenig@amd.com
commit 55bb919be4e4973cd037a04f527ecc6686800437 upstream.
Ideally this should be a multiple of the VM block size. 2MB should at least fit for Vega/Navi.
Signed-off-by: Christian König christian.koenig@amd.com Reviewed-by: Madhav Chauhan madhav.chauhan@amd.com Reviewed-by: Felix Kuehling Felix.Kuehling@amd.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_vm.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -105,8 +105,8 @@ struct amdgpu_bo_list_entry; #define AMDGPU_MMHUB_0 1 #define AMDGPU_MMHUB_1 2
-/* hardcode that limit for now */ -#define AMDGPU_VA_RESERVED_SIZE (1ULL << 20) +/* Reserve 2MB at top/bottom of address space for kernel use */ +#define AMDGPU_VA_RESERVED_SIZE (2ULL << 20)
/* max vmids dedicated for process */ #define AMDGPU_VM_MAX_RESERVED_VMID 1