[PATCH 07/45] drm/amdgpu: skip sdma1 in nv_allowed_read_registers list for van gogh (v2)

[Alex Deucher]

From: Huang Rui <ray.huang at amd.com>

Van gogh only has one sdma.

v2: use num_instances rather than APU flag

Signed-off-by: Huang Rui <ray.huang at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/nv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 2077f897d6eb..8616d397da00 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -289,7 +289,8 @@ static int nv_read_register(struct amdgpu_device *adev, u32 se_num,
 	*value = 0;
 	for (i = 0; i < ARRAY_SIZE(nv_allowed_read_registers); i++) {
 		en = &nv_allowed_read_registers[i];
-		if (reg_offset !=
+		if ((i == 7 && (adev->sdma.num_instances == 1)) || /* some asics don't have SDMA1 */
+		    reg_offset !=
 		    (adev->reg_offset[en->hwip][en->inst][en->seg] + en->reg_offset))
 			continue;
 
-- 
2.25.4