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From 136824c9c5d1a828ce6619f1134318f2ca79e59f Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 20 Mar 2018 12:24:03 -0500
Subject: [PATCH 4421/5725] drm/amdgpu/atomfirmware: add parser for gfx_info
table
Add support for the gfx_info table on boards that use atomfirmware.
Reviewed-by: Hawking Zhang <Hawking.Zhang>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 46 ++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 1 +
2 files changed, 47 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index a0f48cb..7014d58 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -322,3 +322,49 @@ int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev)
return ret;
}
+
+union gfx_info {
+ struct atom_gfx_info_v2_4 v24;
+};
+
+int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev)
+{
+ struct amdgpu_mode_info *mode_info = &adev->mode_info;
+ int index;
+ uint8_t frev, crev;
+ uint16_t data_offset;
+
+ index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+ gfx_info);
+ if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
+ &frev, &crev, &data_offset)) {
+ union gfx_info *gfx_info = (union gfx_info *)
+ (mode_info->atom_context->bios + data_offset);
+ switch (crev) {
+ case 4:
+ adev->gfx.config.max_shader_engines = gfx_info->v24.gc_num_se;
+ adev->gfx.config.max_cu_per_sh = gfx_info->v24.gc_num_cu_per_sh;
+ adev->gfx.config.max_sh_per_se = gfx_info->v24.gc_num_sh_per_se;
+ adev->gfx.config.max_backends_per_se = gfx_info->v24.gc_num_rb_per_se;
+ adev->gfx.config.max_texture_channel_caches = gfx_info->v24.gc_num_tccs;
+ adev->gfx.config.max_gprs = le16_to_cpu(gfx_info->v24.gc_num_gprs);
+ adev->gfx.config.max_gs_threads = gfx_info->v24.gc_num_max_gs_thds;
+ adev->gfx.config.gs_vgt_table_depth = gfx_info->v24.gc_gs_table_depth;
+ adev->gfx.config.gs_prim_buffer_depth =
+ le16_to_cpu(gfx_info->v24.gc_gsprim_buff_depth);
+ adev->gfx.config.double_offchip_lds_buf =
+ gfx_info->v24.gc_double_offchip_lds_buffer;
+ adev->gfx.cu_info.wave_front_size = gfx_info->v24.gc_wave_size;
+ adev->gfx.cu_info.max_waves_per_simd =
+ le16_to_cpu(gfx_info->v24.gc_max_waves_per_simd);
+ adev->gfx.cu_info.max_scratch_slots_per_cu =
+ gfx_info->v24.gc_max_scratch_slots_per_cu;
+ adev->gfx.cu_info.lds_size = le16_to_cpu(gfx_info->v24.gc_lds_size);
+ return 0;
+ default:
+ return -EINVAL;
+ }
+
+ }
+ return -EINVAL;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
index 7689c96..20f158f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
@@ -30,5 +30,6 @@ int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev);
int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev);
int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev);
int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev);
+int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev);
#endif
--
2.7.4
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