[AMD Official Use Only - AMD Internal Distribution Only]

Thanks, will add this check before pushing to amdgpu-staging-drm-next

-----Original Message-----
From: Lazar, Lijo <[email protected]>
Sent: Thursday, March 26, 2026 12:24 PM
To: Xie, Patrick <[email protected]>; [email protected]
Cc: Zhang, Hawking <[email protected]>; Zhou1, Tao <[email protected]>
Subject: Re: [PATCH V4] drm/amdgpu: add support to query vram info from firmware



On 26-Mar-26 8:57 AM, Gangliang Xie wrote:
> add support to query vram info from firmware
>
> v2: change APU vram type, add multi-aid check
> v3: seperate vram info query function into 3 parts and
>      call them in a helper func when requirements
>      are met.
> v4: calculate vram_width for v9.x
>
> Signed-off-by: Gangliang Xie <[email protected]>
> ---
>   .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c  | 459 ++++++++++--------
>   .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h  |   4 +
>   drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c       |  28 ++
>   drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h       |   2 +
>   drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c        |   2 +-
>   drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c        |   2 +-
>   drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c        |   2 +-
>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c         |  58 ++-
>   8 files changed, 314 insertions(+), 243 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
> index 7f4751e5caaf..cd9aa5b45e94 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
> @@ -373,249 +373,280 @@ int amdgpu_atomfirmware_get_uma_carveout_info(struct 
> amdgpu_device *adev,
>       return -ENODEV;
>   }
>
> -int
> -amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
> +int amdgpu_atomfirmware_get_integrated_system_info(struct
> +amdgpu_device *adev,
>                                 int *vram_width, int *vram_type,
>                                 int *vram_vendor)
>   {
>       struct amdgpu_mode_info *mode_info = &adev->mode_info;
> -     int index, i = 0;
> +     int index;
>       u16 data_offset, size;
>       union igp_info *igp_info;
> -     union vram_info *vram_info;
> -     union umc_info *umc_info;
> -     union vram_module *vram_module;
>       u8 frev, crev;
>       u8 mem_type;
> -     u8 mem_vendor;
>       u32 mem_channel_number;
>       u32 mem_channel_width;
> -     u32 module_id;
>
> -     if (adev->flags & AMD_IS_APU)
> -             index = 
> get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
> +     index =
> +get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
>                                                   integratedsysteminfo);
> -     else {
> -             switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
> -             case IP_VERSION(12, 0, 0):
> -             case IP_VERSION(12, 0, 1):
> -                     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)) {
> +             igp_info = (union igp_info *)
> +                     (mode_info->atom_context->bios + data_offset);
> +             switch (frev) {
> +             case 1:
> +                     switch (crev) {
> +                     case 11:
> +                     case 12:
> +                             mem_channel_number = 
> igp_info->v11.umachannelnumber;
> +                             if (!mem_channel_number)
> +                                     mem_channel_number = 1;
> +                             mem_type = igp_info->v11.memorytype;
> +                             if (mem_type == LpDdr5MemType)
> +                                     mem_channel_width = 32;
> +                             else
> +                                     mem_channel_width = 64;
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * 
> mem_channel_width;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             break;
> +                     default:
> +                             return -EINVAL;
> +                     }
> +                     break;
> +             case 2:
> +                     switch (crev) {
> +                     case 1:
> +                     case 2:
> +                             mem_channel_number = 
> igp_info->v21.umachannelnumber;
> +                             if (!mem_channel_number)
> +                                     mem_channel_number = 1;
> +                             mem_type = igp_info->v21.memorytype;
> +                             if (mem_type == LpDdr5MemType)
> +                                     mem_channel_width = 32;
> +                             else
> +                                     mem_channel_width = 64;
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * 
> mem_channel_width;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             break;
> +                     case 3:
> +                             mem_channel_number = 
> igp_info->v23.umachannelnumber;
> +                             if (!mem_channel_number)
> +                                     mem_channel_number = 1;
> +                             mem_type = igp_info->v23.memorytype;
> +                             if (mem_type == LpDdr5MemType)
> +                                     mem_channel_width = 32;
> +                             else
> +                                     mem_channel_width = 64;
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * 
> mem_channel_width;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             break;
> +                     default:
> +                             return -EINVAL;
> +                     }
>                       break;
>               default:
> -                     index = 
> get_index_into_master_table(atom_master_list_of_data_tables_v2_1, vram_info);
> +                     return -EINVAL;
>               }
> +     } else {
> +             return -EINVAL;
>       }
> +     return 0;
> +}
> +
> +int amdgpu_atomfirmware_get_umc_info(struct amdgpu_device *adev,
> +                               int *vram_width, int *vram_type,
> +                               int *vram_vendor)
> +{
> +     struct amdgpu_mode_info *mode_info = &adev->mode_info;
> +     int index;
> +     u16 data_offset, size;
> +     union umc_info *umc_info;
> +     u8 frev, crev;
> +     u8 mem_type;
> +     u8 mem_vendor;
> +     u32 mem_channel_number;
> +     u32 mem_channel_width;
> +
> +     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 (frev) {
> -                     case 1:
> -                             switch (crev) {
> -                             case 11:
> -                             case 12:
> -                                     mem_channel_number = 
> igp_info->v11.umachannelnumber;
> -                                     if (!mem_channel_number)
> -                                             mem_channel_number = 1;
> -                                     mem_type = igp_info->v11.memorytype;
> -                                     if (mem_type == LpDdr5MemType)
> -                                             mem_channel_width = 32;
> -                                     else
> -                                             mem_channel_width = 64;
> -                                     if (vram_width)
> -                                             *vram_width = 
> mem_channel_number * mem_channel_width;
> -                                     if (vram_type)
> -                                             *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                     break;
> -                             default:
> -                                     return -EINVAL;
> -                             }
> -                             break;
> -                     case 2:
> -                             switch (crev) {
> -                             case 1:
> -                             case 2:
> -                                     mem_channel_number = 
> igp_info->v21.umachannelnumber;
> -                                     if (!mem_channel_number)
> -                                             mem_channel_number = 1;
> -                                     mem_type = igp_info->v21.memorytype;
> -                                     if (mem_type == LpDdr5MemType)
> -                                             mem_channel_width = 32;
> -                                     else
> -                                             mem_channel_width = 64;
> -                                     if (vram_width)
> -                                             *vram_width = 
> mem_channel_number * mem_channel_width;
> -                                     if (vram_type)
> -                                             *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                     break;
> -                             case 3:
> -                                     mem_channel_number = 
> igp_info->v23.umachannelnumber;
> -                                     if (!mem_channel_number)
> -                                             mem_channel_number = 1;
> -                                     mem_type = igp_info->v23.memorytype;
> -                                     if (mem_type == LpDdr5MemType)
> -                                             mem_channel_width = 32;
> -                                     else
> -                                             mem_channel_width = 64;
> -                                     if (vram_width)
> -                                             *vram_width = 
> mem_channel_number * mem_channel_width;
> -                                     if (vram_type)
> -                                             *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                     break;
> -                             default:
> -                                     return -EINVAL;
> -                             }
> +             umc_info = (union umc_info *)(mode_info->atom_context->bios +
> +data_offset);
> +
> +             if (frev == 4) {
> +                     switch (crev) {
> +                     case 0:
> +                             mem_channel_number = 
> le32_to_cpu(umc_info->v40.channel_num);
> +                             mem_type = le32_to_cpu(umc_info->v40.vram_type);
> +                             mem_channel_width = 
> le32_to_cpu(umc_info->v40.channel_width);
> +                             mem_vendor = 
> RREG32(adev->bios_scratch_reg_offset + 4) & 0xF;
> +                             if (vram_vendor)
> +                                     *vram_vendor = mem_vendor;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * (1 
> << mem_channel_width);
>                               break;
>                       default:
>                               return -EINVAL;
>                       }
>               } else {
> -                     switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
> -                     case IP_VERSION(12, 0, 0):
> -                     case IP_VERSION(12, 0, 1):
> -                             umc_info = (union umc_info 
> *)(mode_info->atom_context->bios + data_offset);
> -
> -                             if (frev == 4) {
> -                                     switch (crev) {
> -                                     case 0:
> -                                             mem_channel_number = 
> le32_to_cpu(umc_info->v40.channel_num);
> -                                             mem_type = 
> le32_to_cpu(umc_info->v40.vram_type);
> -                                             mem_channel_width = 
> le32_to_cpu(umc_info->v40.channel_width);
> -                                             mem_vendor = 
> RREG32(adev->bios_scratch_reg_offset + 4) & 0xF;
> -                                             if (vram_vendor)
> -                                                     *vram_vendor = 
> mem_vendor;
> -                                             if (vram_type)
> -                                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                             if (vram_width)
> -                                                     *vram_width = 
> mem_channel_number * (1 << mem_channel_width);
> -                                             break;
> -                                     default:
> -                                             return -EINVAL;
> -                                     }
> -                             } else
> -                                     return -EINVAL;
> +                     return -EINVAL;
> +             }
> +     } else {
> +             return -EINVAL;
> +     }
> +
> +     return 0;
> +}
> +
> +int amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
> +                               int *vram_width, int *vram_type,
> +                               int *vram_vendor)
> +{
> +     struct amdgpu_mode_info *mode_info = &adev->mode_info;
> +     int index, i = 0;
> +     u16 data_offset, size;
> +     union vram_info *vram_info;
> +     union vram_module *vram_module;
> +     u8 frev, crev;
> +     u8 mem_type;
> +     u8 mem_vendor;
> +     u32 mem_channel_number;
> +     u32 mem_channel_width;
> +     u32 module_id;
> +
> +     index =
> +get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
> +vram_info);
> +
> +     if (amdgpu_atom_parse_data_header(mode_info->atom_context,
> +                                       index, &size,
> +                                       &frev, &crev, &data_offset)) {
> +             vram_info = (union vram_info *)
> +                     (mode_info->atom_context->bios + data_offset);
> +
> +             module_id = (RREG32(adev->bios_scratch_reg_offset + 4) & 
> 0x00ff0000) >> 16;
> +             if (frev == 3) {
> +                     switch (crev) {
> +                     /* v30 */
> +                     case 0:
> +                             vram_module = (union vram_module 
> *)vram_info->v30.vram_module;
> +                             mem_vendor = (vram_module->v30.dram_vendor_id) 
> & 0xF;
> +                             if (vram_vendor)
> +                                     *vram_vendor = mem_vendor;
> +                             mem_type = vram_info->v30.memory_type;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             mem_channel_number = vram_info->v30.channel_num;
> +                             mem_channel_width = 
> vram_info->v30.channel_width;
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * 16;
>                               break;
>                       default:
> -                             vram_info = (union vram_info *)
> -                                     (mode_info->atom_context->bios + 
> data_offset);
> -
> -                             module_id = 
> (RREG32(adev->bios_scratch_reg_offset + 4) & 0x00ff0000) >> 16;
> -                             if (frev == 3) {
> -                                     switch (crev) {
> -                                     /* v30 */
> -                                     case 0:
> -                                             vram_module = (union 
> vram_module *)vram_info->v30.vram_module;
> -                                             mem_vendor = 
> (vram_module->v30.dram_vendor_id) & 0xF;
> -                                             if (vram_vendor)
> -                                                     *vram_vendor = 
> mem_vendor;
> -                                             mem_type = 
> vram_info->v30.memory_type;
> -                                             if (vram_type)
> -                                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                             mem_channel_number = 
> vram_info->v30.channel_num;
> -                                             mem_channel_width = 
> vram_info->v30.channel_width;
> -                                             if (vram_width)
> -                                                     *vram_width = 
> mem_channel_number * 16;
> -                                             break;
> -                                     default:
> -                                             return -EINVAL;
> -                                     }
> -                             } else if (frev == 2) {
> -                                     switch (crev) {
> -                                     /* v23 */
> -                                     case 3:
> -                                             if (module_id > 
> vram_info->v23.vram_module_num)
> -                                                     module_id = 0;
> -                                             vram_module = (union 
> vram_module *)vram_info->v23.vram_module;
> -                                             while (i < module_id) {
> -                                                     vram_module = (union 
> vram_module *)
> -                                                             ((u8 
> *)vram_module + vram_module->v9.vram_module_size);
> -                                                     i++;
> -                                             }
> -                                             mem_type = 
> vram_module->v9.memory_type;
> -                                             if (vram_type)
> -                                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                             mem_channel_number = 
> vram_module->v9.channel_num;
> -                                             mem_channel_width = 
> vram_module->v9.channel_width;
> -                                             if (vram_width)
> -                                                     *vram_width = 
> mem_channel_number * (1 << mem_channel_width);
> -                                             mem_vendor = 
> (vram_module->v9.vender_rev_id) & 0xF;
> -                                             if (vram_vendor)
> -                                                     *vram_vendor = 
> mem_vendor;
> -                                             break;
> -                                     /* v24 */
> -                                     case 4:
> -                                             if (module_id > 
> vram_info->v24.vram_module_num)
> -                                                     module_id = 0;
> -                                             vram_module = (union 
> vram_module *)vram_info->v24.vram_module;
> -                                             while (i < module_id) {
> -                                                     vram_module = (union 
> vram_module *)
> -                                                             ((u8 
> *)vram_module + vram_module->v10.vram_module_size);
> -                                                     i++;
> -                                             }
> -                                             mem_type = 
> vram_module->v10.memory_type;
> -                                             if (vram_type)
> -                                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                             mem_channel_number = 
> vram_module->v10.channel_num;
> -                                             mem_channel_width = 
> vram_module->v10.channel_width;
> -                                             if (vram_width)
> -                                                     *vram_width = 
> mem_channel_number * (1 << mem_channel_width);
> -                                             mem_vendor = 
> (vram_module->v10.vender_rev_id) & 0xF;
> -                                             if (vram_vendor)
> -                                                     *vram_vendor = 
> mem_vendor;
> -                                             break;
> -                                     /* v25 */
> -                                     case 5:
> -                                             if (module_id > 
> vram_info->v25.vram_module_num)
> -                                                     module_id = 0;
> -                                             vram_module = (union 
> vram_module *)vram_info->v25.vram_module;
> -                                             while (i < module_id) {
> -                                                     vram_module = (union 
> vram_module *)
> -                                                             ((u8 
> *)vram_module + vram_module->v11.vram_module_size);
> -                                                     i++;
> -                                             }
> -                                             mem_type = 
> vram_module->v11.memory_type;
> -                                             if (vram_type)
> -                                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                             mem_channel_number = 
> vram_module->v11.channel_num;
> -                                             mem_channel_width = 
> vram_module->v11.channel_width;
> -                                             if (vram_width)
> -                                                     *vram_width = 
> mem_channel_number * (1 << mem_channel_width);
> -                                             mem_vendor = 
> (vram_module->v11.vender_rev_id) & 0xF;
> -                                             if (vram_vendor)
> -                                                     *vram_vendor = 
> mem_vendor;
> -                                             break;
> -                                     /* v26 */
> -                                     case 6:
> -                                             if (module_id > 
> vram_info->v26.vram_module_num)
> -                                                     module_id = 0;
> -                                             vram_module = (union 
> vram_module *)vram_info->v26.vram_module;
> -                                             while (i < module_id) {
> -                                                     vram_module = (union 
> vram_module *)
> -                                                             ((u8 
> *)vram_module + vram_module->v9.vram_module_size);
> -                                                     i++;
> -                                             }
> -                                             mem_type = 
> vram_module->v9.memory_type;
> -                                             if (vram_type)
> -                                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> -                                             mem_channel_number = 
> vram_module->v9.channel_num;
> -                                             mem_channel_width = 
> vram_module->v9.channel_width;
> -                                             if (vram_width)
> -                                                     *vram_width = 
> mem_channel_number * (1 << mem_channel_width);
> -                                             mem_vendor = 
> (vram_module->v9.vender_rev_id) & 0xF;
> -                                             if (vram_vendor)
> -                                                     *vram_vendor = 
> mem_vendor;
> -                                             break;
> -                                     default:
> -                                             return -EINVAL;
> -                                     }
> -                             } else {
> -                                     /* invalid frev */
> -                                     return -EINVAL;
> +                             return -EINVAL;
> +                     }
> +             } else if (frev == 2) {
> +                     switch (crev) {
> +                     /* v23 */
> +                     case 3:
> +                             if (module_id > vram_info->v23.vram_module_num)
> +                                     module_id = 0;
> +                             vram_module = (union vram_module 
> *)vram_info->v23.vram_module;
> +                             while (i < module_id) {
> +                                     vram_module = (union vram_module *)
> +                                             ((u8 *)vram_module + 
> vram_module->v9.vram_module_size);
> +                                     i++;
>                               }
> +                             mem_type = vram_module->v9.memory_type;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             mem_channel_number = 
> vram_module->v9.channel_num;
> +                             mem_channel_width = 
> vram_module->v9.channel_width;
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * (1 
> << mem_channel_width);
> +                             mem_vendor = (vram_module->v9.vender_rev_id) & 
> 0xF;
> +                             if (vram_vendor)
> +                                     *vram_vendor = mem_vendor;
> +                             break;
> +                     /* v24 */
> +                     case 4:
> +                             if (module_id > vram_info->v24.vram_module_num)
> +                                     module_id = 0;
> +                             vram_module = (union vram_module 
> *)vram_info->v24.vram_module;
> +                             while (i < module_id) {
> +                                     vram_module = (union vram_module *)
> +                                             ((u8 *)vram_module + 
> vram_module->v10.vram_module_size);
> +                                     i++;
> +                             }
> +                             mem_type = vram_module->v10.memory_type;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             mem_channel_number = 
> vram_module->v10.channel_num;
> +                             mem_channel_width = 
> vram_module->v10.channel_width;
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * (1 
> << mem_channel_width);
> +                             mem_vendor = (vram_module->v10.vender_rev_id) & 
> 0xF;
> +                             if (vram_vendor)
> +                                     *vram_vendor = mem_vendor;
> +                             break;
> +                     /* v25 */
> +                     case 5:
> +                             if (module_id > vram_info->v25.vram_module_num)
> +                                     module_id = 0;
> +                             vram_module = (union vram_module 
> *)vram_info->v25.vram_module;
> +                             while (i < module_id) {
> +                                     vram_module = (union vram_module *)
> +                                             ((u8 *)vram_module + 
> vram_module->v11.vram_module_size);
> +                                     i++;
> +                             }
> +                             mem_type = vram_module->v11.memory_type;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             mem_channel_number = 
> vram_module->v11.channel_num;
> +                             mem_channel_width = 
> vram_module->v11.channel_width;
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * (1 
> << mem_channel_width);
> +                             mem_vendor = (vram_module->v11.vender_rev_id) & 
> 0xF;
> +                             if (vram_vendor)
> +                                     *vram_vendor = mem_vendor;
> +                             break;
> +                     /* v26 */
> +                     case 6:
> +                             if (module_id > vram_info->v26.vram_module_num)
> +                                     module_id = 0;
> +                             vram_module = (union vram_module 
> *)vram_info->v26.vram_module;
> +                             while (i < module_id) {
> +                                     vram_module = (union vram_module *)
> +                                             ((u8 *)vram_module + 
> vram_module->v9.vram_module_size);
> +                                     i++;
> +                             }
> +                             mem_type = vram_module->v9.memory_type;
> +                             if (vram_type)
> +                                     *vram_type = 
> convert_atom_mem_type_to_vram_type(adev, mem_type);
> +                             mem_channel_number = 
> vram_module->v9.channel_num;
> +                             mem_channel_width = 
> vram_module->v9.channel_width;
> +                             if (vram_width)
> +                                     *vram_width = mem_channel_number * (1 
> << mem_channel_width);
> +                             mem_vendor = (vram_module->v9.vender_rev_id) & 
> 0xF;
> +                             if (vram_vendor)
> +                                     *vram_vendor = mem_vendor;
> +                             break;
> +                     default:
> +                             return -EINVAL;
>                       }
> +             } else {
> +                     /* invalid frev */
> +                     return -EINVAL;
>               }
> +
> +     } else {
> +             return -EINVAL;
>       }
>
>       return 0;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
> index 67c8d105729b..0760e4510513 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
> @@ -30,6 +30,10 @@ uint32_t 
> amdgpu_atomfirmware_query_firmware_capability(struct amdgpu_device *ade
>   bool amdgpu_atomfirmware_gpu_virtualization_supported(struct amdgpu_device 
> *adev);
>   void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev);
>   int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device
> *adev);
> +int amdgpu_atomfirmware_get_integrated_system_info(struct amdgpu_device 
> *adev,
> +     int *vram_width, int *vram_type, int *vram_vendor); int
> +amdgpu_atomfirmware_get_umc_info(struct amdgpu_device *adev,
> +     int *vram_width, int *vram_type, int *vram_vendor);
>   int amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
>       int *vram_width, int *vram_type, int *vram_vendor);
>   int amdgpu_atomfirmware_get_uma_carveout_info(struct amdgpu_device
> *adev, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> index f165d4e401e8..10713be13579 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> @@ -34,6 +34,7 @@
>   #include "amdgpu_ras.h"
>   #include "amdgpu_reset.h"
>   #include "amdgpu_xgmi.h"
> +#include "amdgpu_atomfirmware.h"
>
>   #include <drm/drm_drv.h>
>   #include <drm/ttm/ttm_tt.h>
> @@ -1748,3 +1749,30 @@ int amdgpu_gmc_init_mem_ranges(struct
> amdgpu_device *adev)
>
>       return 0;
>   }
> +
> +int amdgpu_gmc_get_vram_info(struct amdgpu_device *adev,
> +             int *vram_width, int *vram_type, int *vram_vendor) {
> +     int ret = 0;
> +
> +     if (adev->flags & AMD_IS_APU)
> +             return amdgpu_atomfirmware_get_integrated_system_info(adev,
> +                                                     vram_width, vram_type, 
> vram_vendor);
> +     switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
> +     case IP_VERSION(12, 0, 0):
> +     case IP_VERSION(12, 0, 1):
> +             return amdgpu_atomfirmware_get_umc_info(adev,
> +                                                             vram_width, 
> vram_type, vram_vendor);
> +     case IP_VERSION(9, 5, 0):
> +     case IP_VERSION(9, 4, 4):
> +     case IP_VERSION(9, 4, 3):
> +             ret = amdgpu_atomfirmware_get_umc_info(adev,
> +                                                             vram_width, 
> vram_type, vram_vendor);
> +             *vram_width *= hweight32(adev->aid_mask);

To be on the safe side,
        if (vram_width && !ret)
                *vram_width *= hweight32(adev->aid_mask);

Reviewed-by: Lijo Lazar <[email protected]>

Thanks,
Lijo

> +             return ret;
> +     default:
> +             return amdgpu_atomfirmware_get_vram_info(adev,
> +                                                             vram_width, 
> vram_type, vram_vendor);
> +     }
> +     return 0;
> +}
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> index b9fdc3276e81..32e73e8ba778 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> @@ -482,4 +482,6 @@ amdgpu_gmc_query_memory_partition(struct amdgpu_device 
> *adev);
>   int amdgpu_gmc_init_mem_ranges(struct amdgpu_device *adev);
>   void amdgpu_gmc_init_sw_mem_ranges(struct amdgpu_device *adev,
>                                  struct amdgpu_mem_partition_info 
> *mem_ranges);
> +int amdgpu_gmc_get_vram_info(struct amdgpu_device *adev,
> +             int *vram_width, int *vram_type, int *vram_vendor);
>   #endif
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> index 2568eeaae945..fd691b2a6e21 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> @@ -767,7 +767,7 @@ static int gmc_v10_0_sw_init(struct amdgpu_ip_block 
> *ip_block)
>               adev->gmc.vram_type = AMDGPU_VRAM_TYPE_GDDR6;
>               adev->gmc.vram_width = 1 * 128; /* numchan * chansize */
>       } else {
> -             r = amdgpu_atomfirmware_get_vram_info(adev,
> +             r = amdgpu_gmc_get_vram_info(adev,
>                               &vram_width, &vram_type, &vram_vendor);
>               adev->gmc.vram_width = vram_width;
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
> index 6349e239a367..e6db87b94eb1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
> @@ -751,7 +751,7 @@ static int gmc_v11_0_sw_init(struct
> amdgpu_ip_block *ip_block)
>
>       spin_lock_init(&adev->gmc.invalidate_lock);
>
> -     r = amdgpu_atomfirmware_get_vram_info(adev,
> +     r = amdgpu_gmc_get_vram_info(adev,
>                                             &vram_width, &vram_type, 
> &vram_vendor);
>       adev->gmc.vram_width = vram_width;
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
> index f1079bd8cf00..6e184ea069ef 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
> @@ -825,7 +825,7 @@ static int gmc_v12_0_sw_init(struct amdgpu_ip_block 
> *ip_block)
>       if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(12, 1, 0)) {
>               gmc_v12_1_init_vram_info(adev);
>       } else {
> -             r = amdgpu_atomfirmware_get_vram_info(adev,
> +             r = amdgpu_gmc_get_vram_info(adev,
>                             &vram_width, &vram_type, &vram_vendor);
>               adev->gmc.vram_width = vram_width;
>               adev->gmc.vram_type = vram_type;
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 1ca0202cfdea..d865059e884a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -1823,24 +1823,37 @@ static void gmc_v9_0_save_registers(struct 
> amdgpu_device *adev)
>               adev->gmc.sdpif_register = RREG32_SOC15(DCE, 0, 
> mmDCHUBBUB_SDPIF_MMIO_CNTRL_0);
>   }
>
> -static void gmc_v9_4_3_init_vram_info(struct amdgpu_device *adev)
> +static void gmc_v9_0_init_vram_info(struct amdgpu_device *adev)
>   {
>       static const u32 regBIF_BIOS_SCRATCH_4 = 0x50;
> +     int dev_var = adev->pdev->device & 0xF;
>       u32 vram_info;
>
> -     adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;
> -     adev->gmc.vram_width = 128 * 64;
> -
> -     if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 5, 0))
> -             adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E;
> -
> -     if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 4) &&
> -             adev->rev_id == 0x3)
> -             adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E;
> -
> -     if (!(adev->flags & AMD_IS_APU) && !amdgpu_sriov_vf(adev)) {
> -             vram_info = RREG32(regBIF_BIOS_SCRATCH_4);
> -             adev->gmc.vram_vendor = vram_info & 0xF;
> +     if (adev->gmc.is_app_apu) {
> +             adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;
> +             adev->gmc.vram_width = 128 * 64;
> +     } else if (adev->flags & AMD_IS_APU) {
> +             adev->gmc.vram_type = AMDGPU_VRAM_TYPE_DDR4;
> +             adev->gmc.vram_width = 64 * 64;
> +     } else if (amdgpu_is_multi_aid(adev)) {
> +             adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;
> +             adev->gmc.vram_width = 128 * 64;
> +
> +             if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 5, 0))
> +                     adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E;
> +
> +             if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 4) 
> &&
> +                 adev->rev_id == 0x3)
> +                     adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E;
> +
> +             if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 3) 
> &&
> +                 (dev_var == 0x5))
> +                     adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E;
> +
> +             if (!(adev->flags & AMD_IS_APU) && !amdgpu_sriov_vf(adev)) {
> +                     vram_info = RREG32(regBIF_BIOS_SCRATCH_4);
> +                     adev->gmc.vram_vendor = vram_info & 0xF;
> +             }
>       }
>   }
>
> @@ -1856,19 +1869,11 @@ static int gmc_v9_0_sw_init(struct
> amdgpu_ip_block *ip_block)
>
>       spin_lock_init(&adev->gmc.invalidate_lock);
>
> -     if (amdgpu_is_multi_aid(adev)) {
> -             gmc_v9_4_3_init_vram_info(adev);
> -     } else if (!adev->bios) {
> -             if (adev->flags & AMD_IS_APU) {
> -                     adev->gmc.vram_type = AMDGPU_VRAM_TYPE_DDR4;
> -                     adev->gmc.vram_width = 64 * 64;
> -             } else {
> -                     adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;
> -                     adev->gmc.vram_width = 128 * 64;
> -             }
> +     if (!adev->bios) {
> +             gmc_v9_0_init_vram_info(adev);
>       } else {
> -             r = amdgpu_atomfirmware_get_vram_info(adev,
> -                     &vram_width, &vram_type, &vram_vendor);
> +             r = amdgpu_gmc_get_vram_info(adev,
> +                             &vram_width, &vram_type, &vram_vendor);
>               if (amdgpu_sriov_vf(adev))
>                       /* For Vega10 SR-IOV, vram_width can't be read from 
> ATOM as RAVEN,
>                        * and DF related registers is not readable, seems 
> hardcord is
> the @@ -1896,6 +1901,7 @@ static int gmc_v9_0_sw_init(struct amdgpu_ip_block 
> *ip_block)
>               adev->gmc.vram_type = vram_type;
>               adev->gmc.vram_vendor = vram_vendor;
>       }
> +
>       switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
>       case IP_VERSION(9, 1, 0):
>       case IP_VERSION(9, 2, 2):

Reply via email to