drm/amdgpu/sdma4: add sdma4_0_1 support for vega12 (v3)

Add sdma golden setting for vega12.

v2: switch to soc15_program_register_sequence for
golden register programming
v3: squash in unused declaration fix

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c

@@ -86,6 +86,13 @@ static const struct soc15_reg_golden golden_settings_sdma_vg10[] = {
 	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104002)
 };
 
+static const struct soc15_reg_golden golden_settings_sdma_vg12[] = {
+	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG, 0x0018773f, 0x00104002),
+	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104002),
+	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG, 0x0018773f, 0x00104002),
+	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104002)
+};
+
 static const struct soc15_reg_golden golden_settings_sdma_4_1[] =
 {
 	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CHICKEN_BITS, 0xfe931f07, 0x02831d07),
@@ -125,7 +132,12 @@ static void sdma_v4_0_init_golden_registers(struct amdgpu_device *adev)
 						 ARRAY_SIZE(golden_settings_sdma_vg10));
 		break;
 	case CHIP_VEGA12:
-		DRM_ERROR("todo: Missing SDMA4 golden settings for vega12\n");
+		soc15_program_register_sequence(adev,
+						golden_settings_sdma_4,
+						ARRAY_SIZE(golden_settings_sdma_4));
+		soc15_program_register_sequence(adev,
+						golden_settings_sdma_vg12,
+						ARRAY_SIZE(golden_settings_sdma_vg12));
 		break;
 	case CHIP_RAVEN:
 		soc15_program_register_sequence(adev,
@@ -1627,7 +1639,7 @@ static void sdma_v4_0_set_irq_funcs(struct amdgpu_device *adev)
  * @dst_offset: dst GPU address
  * @byte_count: number of bytes to xfer
  *
- * Copy GPU buffers using the DMA engine (VEGA10).
+ * Copy GPU buffers using the DMA engine (VEGA10/12).
  * Used by the amdgpu ttm implementation to move pages if
  * registered as the asic copy callback.
  */
@@ -1654,7 +1666,7 @@ static void sdma_v4_0_emit_copy_buffer(struct amdgpu_ib *ib,
  * @dst_offset: dst GPU address
  * @byte_count: number of bytes to xfer
  *
- * Fill GPU buffers using the DMA engine (VEGA10).
+ * Fill GPU buffers using the DMA engine (VEGA10/12).
  */
 static void sdma_v4_0_emit_fill_buffer(struct amdgpu_ib *ib,
 				       uint32_t src_data,