Merge tag 'dlm-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

[linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_atomfirmware.c

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index 3b5d13189073419fec176ec58fb004bdb92fcc8d..8f53837d4d3ee8f60acc5147e5a8e45ec02776de 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -468,6 +468,46 @@ bool amdgpu_atomfirmware_dynamic_boot_config_supported(struct amdgpu_device *ade
        return (fw_cap & ATOM_FIRMWARE_CAP_DYNAMIC_BOOT_CFG_ENABLE) ? true : false;
 }
 
+/*
+ * Helper function to query RAS EEPROM address
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Return true if vbios supports ras rom address reporting
+ */
+bool amdgpu_atomfirmware_ras_rom_addr(struct amdgpu_device *adev, uint8_t* i2c_address)
+{
+       struct amdgpu_mode_info *mode_info = &adev->mode_info;
+       int index;
+       u16 data_offset, size;
+       union firmware_info *firmware_info;
+       u8 frev, crev;
+
+       if (i2c_address == NULL)
+               return false;
+
+       *i2c_address = 0;
+
+       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 3.4 + */
+               if ((frev == 3 && crev >=4) || (frev > 3)) {
+                       firmware_info = (union firmware_info *)
+                               (mode_info->atom_context->bios + data_offset);
+                       *i2c_address = firmware_info->v34.ras_rom_i2c_slave_addr;
+               }
+       }
+
+       if (*i2c_address != 0)
+               return true;
+
+       return false;
+}
+
+
 union smu_info {
        struct atom_smu_info_v3_1 v31;
 };