From: Hawking Zhang <Hawking.Zhang@xxxxxxx>
fw_reserved_size_in_kb is introduced for driver to query
the TMR region reserved by PSP BL in Sienna_Cichlid and onwards
Signed-off-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
.../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 38 +++++++++++++++++++
.../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 1 +
2 files changed, 39 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index 659d845dbebe..a9adccfda4c0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -325,6 +325,9 @@ bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev)
union firmware_info {
struct atom_firmware_info_v3_1 v31;
+ struct atom_firmware_info_v3_2 v32;
+ struct atom_firmware_info_v3_3 v33;
+ struct atom_firmware_info_v3_4 v34;
};
/*
@@ -590,3 +593,38 @@ int amdgpu_atomfirmware_get_mem_train_info(struct amdgpu_device *adev)
adev->fw_vram_usage.mem_train_support = true;
return 0;
}
+
+int amdgpu_atomfirmware_get_fw_reserved_fb_size(struct amdgpu_device *adev)
+{
+ struct atom_context *ctx = adev->mode_info.atom_context;
+ union firmware_info *firmware_info;
+ int index;
+ u16 data_offset, size;
+ u8 frev, crev;
+ int fw_reserved_fb_size;
+
+ index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+ firmwareinfo);
+
+ if (!amdgpu_atom_parse_data_header(ctx, index, &size,
+ &frev, &crev, &data_offset))
+ /* fail to parse data_header */
+ return 0;
+
+ firmware_info = (union firmware_info *)(ctx->bios + data_offset);
+
+ if (frev !=3)
+ return -EINVAL;
+
+ switch (crev) {
+ case 4:
+ fw_reserved_fb_size =
+ (firmware_info->v34.fw_reserved_size_in_kb << 10);
+ break;
+ default:
+ fw_reserved_fb_size = 0;
+ break;
+ }
+
+ return fw_reserved_fb_size;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
index 434fe2fa0089..3a5ed339903e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
@@ -36,5 +36,6 @@ int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev);
int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev);
bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev);
bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev);
+int amdgpu_atomfirmware_get_fw_reserved_fb_size(struct amdgpu_device *adev);
#endif
--
2.25.4
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