drm/amdgpu: init rlcg_reg_access_ctrl for gfx9

Initialize all the register offsets that will be
used in rlcg indirect reg access path for gfx9 in
sw_init phase

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Zhou, Peng Ju <PengJu.Zhou@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 17704cd..c7bccf1 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1983,6 +1983,21 @@ static int gfx_v9_0_cp_jump_table_num(struct amdgpu_device *adev)
                return 4;
 }
 
+static void gfx_v9_0_init_rlcg_reg_access_ctrl(struct amdgpu_device *adev)
+{
+       struct amdgpu_rlcg_reg_access_ctrl *reg_access_ctrl;
+
+       reg_access_ctrl = &adev->gfx.rlc.reg_access_ctrl;
+       reg_access_ctrl->scratch_reg0 = SOC15_REG_OFFSET(GC, 0, mmSCRATCH_REG0);
+       reg_access_ctrl->scratch_reg1 = SOC15_REG_OFFSET(GC, 0, mmSCRATCH_REG1);
+       reg_access_ctrl->scratch_reg2 = SOC15_REG_OFFSET(GC, 0, mmSCRATCH_REG2);
+       reg_access_ctrl->scratch_reg3 = SOC15_REG_OFFSET(GC, 0, mmSCRATCH_REG3);
+       reg_access_ctrl->grbm_cntl = SOC15_REG_OFFSET(GC, 0, mmGRBM_GFX_CNTL);
+       reg_access_ctrl->grbm_idx = SOC15_REG_OFFSET(GC, 0, mmGRBM_GFX_INDEX);
+       reg_access_ctrl->spare_int = SOC15_REG_OFFSET(GC, 0, mmRLC_SPARE_INT);
+       adev->gfx.rlc.rlcg_reg_access_supported = true;
+}
+
 static int gfx_v9_0_rlc_init(struct amdgpu_device *adev)
 {
        const struct cs_section_def *cs_data;
@@ -2023,6 +2038,9 @@ static int gfx_v9_0_rlc_init(struct amdgpu_device *adev)
        if (adev->gfx.rlc.funcs->update_spm_vmid)
                adev->gfx.rlc.funcs->update_spm_vmid(adev, 0xf);
 
+       /* init rlcg reg access ctrl */
+       gfx_v9_0_init_rlcg_reg_access_ctrl(adev);
+
        return 0;
 }
 
@@ -2432,10 +2450,14 @@ static int gfx_v9_0_sw_init(void *handle)
                return r;
        }
 
-       r = adev->gfx.rlc.funcs->init(adev);
-       if (r) {
-               DRM_ERROR("Failed to init rlc BOs!\n");
-               return r;
+       if (adev->gfx.rlc.funcs) {
+               if (adev->gfx.rlc.funcs->init) {
+                       r = adev->gfx.rlc.funcs->init(adev);
+                       if (r) {
+                               dev_err(adev->dev, "Failed to init rlc BOs!\n");
+                               return r;
+                       }
+               }
        }
 
        r = gfx_v9_0_mec_init(adev);