The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 39932ef75897bfcb8ba1120e7b09d615d74762fd Mon Sep 17 00:00:00 2001
From: John Clements john.clements@amd.com Date: Wed, 4 Aug 2021 17:11:40 +0800 Subject: [PATCH] drm/amdgpu: set RAS EEPROM address from VBIOS
update to latest atombios fw table
[Backport to 5.14 - Alex]
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1670 Signed-off-by: John Clements john.clements@amd.com Reviewed-by: Hawking Zhang Hawking.Zhang@amd.com. Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c index 3b5d13189073..8f53837d4d3e 100644 --- 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; }; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h index 1bbbb195015d..751248b253de 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h @@ -36,6 +36,7 @@ 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); +bool amdgpu_atomfirmware_ras_rom_addr(struct amdgpu_device *adev, uint8_t* i2c_address); bool amdgpu_atomfirmware_mem_training_supported(struct amdgpu_device *adev); bool amdgpu_atomfirmware_dynamic_boot_config_supported(struct amdgpu_device *adev); int amdgpu_atomfirmware_get_fw_reserved_fb_size(struct amdgpu_device *adev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c index f40c871da0c6..38222de921d1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c @@ -26,6 +26,7 @@ #include "amdgpu_ras.h" #include <linux/bits.h> #include "atom.h" +#include "amdgpu_atomfirmware.h"
#define EEPROM_I2C_TARGET_ADDR_VEGA20 0xA0 #define EEPROM_I2C_TARGET_ADDR_ARCTURUS 0xA8 @@ -96,6 +97,9 @@ static bool __get_eeprom_i2c_addr(struct amdgpu_device *adev, if (!i2c_addr) return false;
+ if (amdgpu_atomfirmware_ras_rom_addr(adev, (uint8_t*)i2c_addr)) + return true; + switch (adev->asic_type) { case CHIP_VEGA20: *i2c_addr = EEPROM_I2C_TARGET_ADDR_VEGA20; diff --git a/drivers/gpu/drm/amd/include/atomfirmware.h b/drivers/gpu/drm/amd/include/atomfirmware.h index 3811e58dd857..44955458fe38 100644 --- a/drivers/gpu/drm/amd/include/atomfirmware.h +++ b/drivers/gpu/drm/amd/include/atomfirmware.h @@ -590,7 +590,7 @@ struct atom_firmware_info_v3_4 { uint8_t board_i2c_feature_id; // enum of atom_board_i2c_feature_id_def uint8_t board_i2c_feature_gpio_id; // i2c id find in gpio_lut data table gpio_id uint8_t board_i2c_feature_slave_addr; - uint8_t reserved3; + uint8_t ras_rom_i2c_slave_addr; uint16_t bootup_mvddq_mv; uint16_t bootup_mvpp_mv; uint32_t zfbstartaddrin16mb;