drm/amdgpu: add get_clock_info for atomfirmware

The information has moved to different tables, notably
smu_info for core refclk and umc_info for mem refclk.

Acked-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Christian König <christian.koenig@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 a7d65f0338834c41d4474daae4ff25b254d4d9bf..f9ffe8ef0cd60a85ae4180f66727f791e8679622 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -128,3 +128,96 @@ int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev)
 
        return 0;
 }
+
+union firmware_info {
+       struct atom_firmware_info_v3_1 v31;
+};
+
+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;
+       struct amdgpu_pll *spll = &adev->clock.spll;
+       struct amdgpu_pll *mpll = &adev->clock.mpll;
+       uint8_t frev, crev;
+       uint16_t data_offset;
+       int ret = -EINVAL, index;
+
+       index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+                                           firmwareinfo);
+       if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
+                                  &frev, &crev, &data_offset)) {
+               union firmware_info *firmware_info =
+                       (union firmware_info *)(mode_info->atom_context->bios +
+                                               data_offset);
+
+               adev->clock.default_sclk =
+                       le32_to_cpu(firmware_info->v31.bootup_sclk_in10khz);
+               adev->clock.default_mclk =
+                       le32_to_cpu(firmware_info->v31.bootup_mclk_in10khz);
+
+               adev->pm.current_sclk = adev->clock.default_sclk;
+               adev->pm.current_mclk = adev->clock.default_mclk;
+
+               /* not technically a clock, but... */
+               adev->mode_info.firmware_flags =
+                       le32_to_cpu(firmware_info->v31.firmware_capability);
+
+               ret = 0;
+       }
+
+       index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+                                           smu_info);
+       if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
+                                  &frev, &crev, &data_offset)) {
+               union smu_info *smu_info =
+                       (union smu_info *)(mode_info->atom_context->bios +
+                                          data_offset);
+
+               /* system clock */
+               spll->reference_freq = le32_to_cpu(smu_info->v31.core_refclk_10khz);
+
+               spll->reference_div = 0;
+               spll->min_post_div = 1;
+               spll->max_post_div = 1;
+               spll->min_ref_div = 2;
+               spll->max_ref_div = 0xff;
+               spll->min_feedback_div = 4;
+               spll->max_feedback_div = 0xff;
+               spll->best_vco = 0;
+
+               ret = 0;
+       }
+
+       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, NULL,
+                                  &frev, &crev, &data_offset)) {
+               union umc_info *umc_info =
+                       (union umc_info *)(mode_info->atom_context->bios +
+                                          data_offset);
+
+               /* memory clock */
+               mpll->reference_freq = le32_to_cpu(umc_info->v31.mem_refclk_10khz);
+
+               mpll->reference_div = 0;
+               mpll->min_post_div = 1;
+               mpll->max_post_div = 1;
+               mpll->min_ref_div = 2;
+               mpll->max_ref_div = 0xff;
+               mpll->min_feedback_div = 4;
+               mpll->max_feedback_div = 0xff;
+               mpll->best_vco = 0;
+
+               ret = 0;
+       }
+
+       return ret;
+}

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
index cedafbb9183e89a2ffe18180d2e11270997f14d0..288b97e543478b48f2298cf3e442b03f99a91d69 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
@@ -28,5 +28,6 @@ bool amdgpu_atomfirmware_gpu_supports_virtualization(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_vram_width(struct amdgpu_device *adev);
+int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev);
 
 #endif