This reverts commit 5e49d6f654c569c2de920babbaf5cf7c4c4a353f.

Drop this workaround in favor of a better one.

Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/nv.c    | 27 ++++++++++----------------
 drivers/gpu/drm/amd/amdgpu/soc15.c | 31 ++++++++++++------------------
 2 files changed, 22 insertions(+), 36 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 7283d6198b89..af68f9815f28 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -201,25 +201,17 @@ static uint32_t nv_read_indexed_register(struct 
amdgpu_device *adev, u32 se_num,
        return val;
 }
 
-static int nv_get_register_value(struct amdgpu_device *adev,
+static uint32_t nv_get_register_value(struct amdgpu_device *adev,
                                      bool indexed, u32 se_num,
-                                     u32 sh_num, u32 reg_offset,
-                                     u32 *value)
+                                     u32 sh_num, u32 reg_offset)
 {
        if (indexed) {
-               if (adev->pm.pp_feature & PP_GFXOFF_MASK)
-                       return -EINVAL;
-               *value = nv_read_indexed_register(adev, se_num, sh_num, 
reg_offset);
+               return nv_read_indexed_register(adev, se_num, sh_num, 
reg_offset);
        } else {
-               if (reg_offset == SOC15_REG_OFFSET(GC, 0, mmGB_ADDR_CONFIG)) {
-                       *value = adev->gfx.config.gb_addr_config;
-               } else {
-                       if (adev->pm.pp_feature & PP_GFXOFF_MASK)
-                               return -EINVAL;
-                       *value = RREG32(reg_offset);
-               }
+               if (reg_offset == SOC15_REG_OFFSET(GC, 0, mmGB_ADDR_CONFIG))
+                       return adev->gfx.config.gb_addr_config;
+               return RREG32(reg_offset);
        }
-       return 0;
 }
 
 static int nv_read_register(struct amdgpu_device *adev, u32 se_num,
@@ -235,9 +227,10 @@ static int nv_read_register(struct amdgpu_device *adev, 
u32 se_num,
                    (adev->reg_offset[en->hwip][en->inst][en->seg] + 
en->reg_offset))
                        continue;
 
-               return nv_get_register_value(adev,
-                                            
nv_allowed_read_registers[i].grbm_indexed,
-                                            se_num, sh_num, reg_offset, value);
+               *value = nv_get_register_value(adev,
+                                              
nv_allowed_read_registers[i].grbm_indexed,
+                                              se_num, sh_num, reg_offset);
+               return 0;
        }
        return -EINVAL;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c 
b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 3b55655f79c4..8e1640bc07af 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -363,27 +363,19 @@ static uint32_t soc15_read_indexed_register(struct 
amdgpu_device *adev, u32 se_n
        return val;
 }
 
-static int soc15_get_register_value(struct amdgpu_device *adev,
+static uint32_t soc15_get_register_value(struct amdgpu_device *adev,
                                         bool indexed, u32 se_num,
-                                        u32 sh_num, u32 reg_offset,
-                                        u32 *value)
+                                        u32 sh_num, u32 reg_offset)
 {
        if (indexed) {
-               if (adev->pm.pp_feature & PP_GFXOFF_MASK)
-                       return -EINVAL;
-               *value = soc15_read_indexed_register(adev, se_num, sh_num, 
reg_offset);
+               return soc15_read_indexed_register(adev, se_num, sh_num, 
reg_offset);
        } else {
-               if (reg_offset == SOC15_REG_OFFSET(GC, 0, mmGB_ADDR_CONFIG)) {
-                       *value = adev->gfx.config.gb_addr_config;
-               } else if (reg_offset == SOC15_REG_OFFSET(GC, 0, mmDB_DEBUG2)) {
-                       *value = adev->gfx.config.db_debug2;
-               } else {
-                       if (adev->pm.pp_feature & PP_GFXOFF_MASK)
-                               return -EINVAL;
-                       *value = RREG32(reg_offset);
-               }
+               if (reg_offset == SOC15_REG_OFFSET(GC, 0, mmGB_ADDR_CONFIG))
+                       return adev->gfx.config.gb_addr_config;
+               else if (reg_offset == SOC15_REG_OFFSET(GC, 0, mmDB_DEBUG2))
+                       return adev->gfx.config.db_debug2;
+               return RREG32(reg_offset);
        }
-       return 0;
 }
 
 static int soc15_read_register(struct amdgpu_device *adev, u32 se_num,
@@ -399,9 +391,10 @@ static int soc15_read_register(struct amdgpu_device *adev, 
u32 se_num,
                                        + en->reg_offset))
                        continue;
 
-               return soc15_get_register_value(adev,
-                                               
soc15_allowed_read_registers[i].grbm_indexed,
-                                               se_num, sh_num, reg_offset, 
value);
+               *value = soc15_get_register_value(adev,
+                                                 
soc15_allowed_read_registers[i].grbm_indexed,
+                                                 se_num, sh_num, reg_offset);
+               return 0;
        }
        return -EINVAL;
 }
-- 
2.23.0

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