drm/amdgpu: query vram type from atombios
The vram type for dGPU is stored in umc_info while sys mem type
for APU is stored in integratedsysteminfo
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index ff8efd0..a0f48cb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -114,6 +114,9 @@ union igp_info {
struct atom_integrated_system_info_v1_11 v11;
};
+union umc_info {
+ struct atom_umc_info_v3_1 v31;
+};
/*
* Return vram width from integrated system info table, if available,
* or 0 if not.
@@ -143,6 +146,94 @@ int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev)
return 0;
}
+static int convert_atom_mem_type_to_vram_type (struct amdgpu_device *adev,
+ int atom_mem_type)
+{
+ int vram_type;
+
+ if (adev->flags & AMD_IS_APU) {
+ switch (atom_mem_type) {
+ case Ddr2MemType:
+ case LpDdr2MemType:
+ vram_type = AMDGPU_VRAM_TYPE_DDR2;
+ break;
+ case Ddr3MemType:
+ case LpDdr3MemType:
+ vram_type = AMDGPU_VRAM_TYPE_DDR3;
+ break;
+ case Ddr4MemType:
+ case LpDdr4MemType:
+ vram_type = AMDGPU_VRAM_TYPE_DDR4;
+ break;
+ default:
+ vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
+ break;
+ }
+ } else {
+ switch (atom_mem_type) {
+ case ATOM_DGPU_VRAM_TYPE_GDDR5:
+ vram_type = AMDGPU_VRAM_TYPE_GDDR5;
+ break;
+ case ATOM_DGPU_VRAM_TYPE_HBM:
+ vram_type = AMDGPU_VRAM_TYPE_HBM;
+ break;
+ default:
+ vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
+ break;
+ }
+ }
+
+ return vram_type;
+}
+/*
+ * Return vram type from either integrated system info table
+ * or umc info table, if available, or 0 (TYPE_UNKNOWN) if not
+ */
+int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev)
+{
+ struct amdgpu_mode_info *mode_info = &adev->mode_info;
+ int index;
+ u16 data_offset, size;
+ union igp_info *igp_info;
+ union umc_info *umc_info;
+ u8 frev, crev;
+ u8 mem_type;
+
+ if (adev->flags & AMD_IS_APU)
+ index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+ integratedsysteminfo);
+ else
+ index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+ umc_info);
+ if (amdgpu_atom_parse_data_header(mode_info->atom_context,
+ index, &size,
+ &frev, &crev, &data_offset)) {
+ if (adev->flags & AMD_IS_APU) {
+ igp_info = (union igp_info *)
+ (mode_info->atom_context->bios + data_offset);
+ switch (crev) {
+ case 11:
+ mem_type = igp_info->v11.memorytype;
+ return convert_atom_mem_type_to_vram_type(adev, mem_type);
+ default:
+ return 0;
+ }
+ } else {
+ umc_info = (union umc_info *)
+ (mode_info->atom_context->bios + data_offset);
+ switch (crev) {
+ case 1:
+ mem_type = umc_info->v31.vram_type;
+ return convert_atom_mem_type_to_vram_type(adev, mem_type);
+ default:
+ return 0;
+ }
+ }
+ }
+
+ return 0;
+}
+
union firmware_info {
struct atom_firmware_info_v3_1 v31;
};
@@ -151,10 +242,6 @@ union smu_info {
struct atom_smu_info_v3_1 v31;
};
-union umc_info {
- struct atom_umc_info_v3_1 v31;
-};
-
int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev)
{
struct amdgpu_mode_info *mode_info = &adev->mode_info;