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From 0117f9bb2f610e3955776cc0a1ac45c8710cc506 Mon Sep 17 00:00:00 2001
From: Hawking Zhang <Hawking.Zhang@amd.com>
Date: Thu, 7 Mar 2019 10:52:43 +0800
Subject: [PATCH 1578/2940] drm/amdgpu: add atomfirmware helper function to
query sram ecc caps
sram ecc capability could be get from firmware_capability field in firmwareinfo table
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
.../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 30 +++++++++++++++++++
.../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 1 +
2 files changed, 31 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index 742af0ed94d7..f96d75c6e099 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -271,6 +271,36 @@ union firmware_info {
struct atom_firmware_info_v3_1 v31;
};
+/*
+ * Return true if vbios supports sram ecc or false if not
+ */
+bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev)
+{
+ struct amdgpu_mode_info *mode_info = &adev->mode_info;
+ int index;
+ u16 data_offset, size;
+ union firmware_info *firmware_info;
+ u8 frev, crev;
+ bool sram_ecc_supported = false;
+
+ index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+ firmwareinfo);
+
+ if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context,
+ index, &size, &frev, &crev, &data_offset)) {
+ /* support firmware_info 3.1 + */
+ if ((frev == 3 && crev >=1) || (frev > 3)) {
+ firmware_info = (union firmware_info *)
+ (mode_info->atom_context->bios + data_offset);
+ sram_ecc_supported =
+ (le32_to_cpu(firmware_info->v31.firmware_capability) &
+ ATOM_FIRMWARE_CAP_SRAM_ECC) ? true : false;
+ }
+ }
+
+ return sram_ecc_supported;
+}
+
union smu_info {
struct atom_smu_info_v3_1 v31;
};
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
index 6da079e60619..5ec6f92f353c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
@@ -34,5 +34,6 @@ 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);
bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev);
+bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev);
#endif
--
2.17.1
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