Check of the base offset for the IP exists rather than
explicitly checking for how many instances of a particular
IP there are.  This is what soc15.c already does.  Expand
this to nv.c and soc21.c.

Signed-off-by: Alex Deucher <[email protected]>
---
 drivers/gpu/drm/amd/amdgpu/nv.c    | 6 +++---
 drivers/gpu/drm/amd/amdgpu/soc21.c | 5 +++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 8ecfd66c4cee..d016e3c3e221 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -392,9 +392,9 @@ 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 ((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))
+               if (adev->reg_offset[en->hwip][en->inst] &&
+                   reg_offset != (adev->reg_offset[en->hwip][en->inst][en->seg]
+                                  + en->reg_offset))
                        continue;
 
                *value = nv_get_register_value(adev,
diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c 
b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 9e689a1f2ea4..2f23cb8cd6e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -252,8 +252,9 @@ static int soc21_read_register(struct amdgpu_device *adev, 
u32 se_num,
        *value = 0;
        for (i = 0; i < ARRAY_SIZE(soc21_allowed_read_registers); i++) {
                en = &soc21_allowed_read_registers[i];
-               if (reg_offset !=
-                   (adev->reg_offset[en->hwip][en->inst][en->seg] + 
en->reg_offset))
+               if (adev->reg_offset[en->hwip][en->inst] &&
+                   reg_offset != (adev->reg_offset[en->hwip][en->inst][en->seg]
+                                  + en->reg_offset))
                        continue;
 
                *value = soc21_get_register_value(adev,
-- 
2.35.1

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