211 lines
6.4 KiB
C
211 lines
6.4 KiB
C
|
/*
|
||
|
|
* Copyright 2019 Advanced Micro Devices, Inc.
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
* copy of this software and associated documentation files (the "Software"),
|
||
|
|
* to deal in the Software without restriction, including without limitation
|
||
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||
|
|
* Software is furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
||
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
||
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#include <linux/pci.h>
|
||
|
|
|
||
|
|
#include "amdgpu.h"
|
||
|
|
#include "amdgpu_i2c.h"
|
||
|
|
#include "smu_v11_0_i2c.h"
|
||
|
|
#include "atom.h"
|
||
|
|
#include "amdgpu_fru_eeprom.h"
|
||
|
|
#include "amdgpu_eeprom.h"
|
||
|
|
|
||
|
|
#define FRU_EEPROM_MADDR 0x60000
|
||
|
|
|
||
|
|
static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
|
||
|
|
{
|
||
|
|
/* Only server cards have the FRU EEPROM
|
||
|
|
* TODO: See if we can figure this out dynamically instead of
|
||
|
|
* having to parse VBIOS versions.
|
||
|
|
*/
|
||
|
|
struct atom_context *atom_ctx = adev->mode_info.atom_context;
|
||
|
|
|
||
|
|
/* The i2c access is blocked on VF
|
||
|
|
* TODO: Need other way to get the info
|
||
|
|
*/
|
||
|
|
if (amdgpu_sriov_vf(adev))
|
||
|
|
return false;
|
||
|
|
|
||
|
|
/* VBIOS is of the format ###-DXXXYYYY-##. For SKU identification,
|
||
|
|
* we can use just the "DXXX" portion. If there were more models, we
|
||
|
|
* could convert the 3 characters to a hex integer and use a switch
|
||
|
|
* for ease/speed/readability. For now, 2 string comparisons are
|
||
|
|
* reasonable and not too expensive
|
||
|
|
*/
|
||
|
|
switch (adev->asic_type) {
|
||
|
|
case CHIP_VEGA20:
|
||
|
|
/* D161 and D163 are the VG20 server SKUs */
|
||
|
|
if (strnstr(atom_ctx->vbios_version, "D161",
|
||
|
|
sizeof(atom_ctx->vbios_version)) ||
|
||
|
|
strnstr(atom_ctx->vbios_version, "D163",
|
||
|
|
sizeof(atom_ctx->vbios_version)))
|
||
|
|
return true;
|
||
|
|
else
|
||
|
|
return false;
|
||
|
|
case CHIP_ALDEBARAN:
|
||
|
|
/* All Aldebaran SKUs have the FRU */
|
||
|
|
return true;
|
||
|
|
case CHIP_SIENNA_CICHLID:
|
||
|
|
if (strnstr(atom_ctx->vbios_version, "D603",
|
||
|
|
sizeof(atom_ctx->vbios_version))) {
|
||
|
|
if (strnstr(atom_ctx->vbios_version, "D603GLXE",
|
||
|
|
sizeof(atom_ctx->vbios_version)))
|
||
|
|
return false;
|
||
|
|
else
|
||
|
|
return true;
|
||
|
|
} else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int amdgpu_fru_read_eeprom(struct amdgpu_device *adev, uint32_t addrptr,
|
||
|
|
unsigned char *buf, size_t buf_size)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
u8 size;
|
||
|
|
|
||
|
|
ret = amdgpu_eeprom_read(adev->pm.fru_eeprom_i2c_bus, addrptr, buf, 1);
|
||
|
|
if (ret < 1) {
|
||
|
|
DRM_WARN("FRU: Failed to get size field");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* The size returned by the i2c requires subtraction of 0xC0 since the
|
||
|
|
* size apparently always reports as 0xC0+actual size.
|
||
|
|
*/
|
||
|
|
size = buf[0] & 0x3F;
|
||
|
|
size = min_t(size_t, size, buf_size);
|
||
|
|
|
||
|
|
ret = amdgpu_eeprom_read(adev->pm.fru_eeprom_i2c_bus, addrptr + 1,
|
||
|
|
buf, size);
|
||
|
|
if (ret < 1) {
|
||
|
|
DRM_WARN("FRU: Failed to get data field");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
|
||
|
|
int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
|
||
|
|
{
|
||
|
|
unsigned char buf[AMDGPU_PRODUCT_NAME_LEN];
|
||
|
|
u32 addrptr;
|
||
|
|
int size, len;
|
||
|
|
|
||
|
|
if (!is_fru_eeprom_supported(adev))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
/* If algo exists, it means that the i2c_adapter's initialized */
|
||
|
|
if (!adev->pm.fru_eeprom_i2c_bus || !adev->pm.fru_eeprom_i2c_bus->algo) {
|
||
|
|
DRM_WARN("Cannot access FRU, EEPROM accessor not initialized");
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* There's a lot of repetition here. This is due to the FRU having
|
||
|
|
* variable-length fields. To get the information, we have to find the
|
||
|
|
* size of each field, and then keep reading along and reading along
|
||
|
|
* until we get all of the data that we want. We use addrptr to track
|
||
|
|
* the address as we go
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* The first fields are all of size 1-byte, from 0-7 are offsets that
|
||
|
|
* contain information that isn't useful to us.
|
||
|
|
* Bytes 8-a are all 1-byte and refer to the size of the entire struct,
|
||
|
|
* and the language field, so just start from 0xb, manufacturer size
|
||
|
|
*/
|
||
|
|
addrptr = FRU_EEPROM_MADDR + 0xb;
|
||
|
|
size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
|
||
|
|
if (size < 1) {
|
||
|
|
DRM_ERROR("Failed to read FRU Manufacturer, ret:%d", size);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Increment the addrptr by the size of the field, and 1 due to the
|
||
|
|
* size field being 1 byte. This pattern continues below.
|
||
|
|
*/
|
||
|
|
addrptr += size + 1;
|
||
|
|
size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
|
||
|
|
if (size < 1) {
|
||
|
|
DRM_ERROR("Failed to read FRU product name, ret:%d", size);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
len = size;
|
||
|
|
if (len >= AMDGPU_PRODUCT_NAME_LEN) {
|
||
|
|
DRM_WARN("FRU Product Name is larger than %d characters. This is likely a mistake",
|
||
|
|
AMDGPU_PRODUCT_NAME_LEN);
|
||
|
|
len = AMDGPU_PRODUCT_NAME_LEN - 1;
|
||
|
|
}
|
||
|
|
memcpy(adev->product_name, buf, len);
|
||
|
|
adev->product_name[len] = '\0';
|
||
|
|
|
||
|
|
addrptr += size + 1;
|
||
|
|
size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
|
||
|
|
if (size < 1) {
|
||
|
|
DRM_ERROR("Failed to read FRU product number, ret:%d", size);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
len = size;
|
||
|
|
/* Product number should only be 16 characters. Any more,
|
||
|
|
* and something could be wrong. Cap it at 16 to be safe
|
||
|
|
*/
|
||
|
|
if (len >= sizeof(adev->product_number)) {
|
||
|
|
DRM_WARN("FRU Product Number is larger than 16 characters. This is likely a mistake");
|
||
|
|
len = sizeof(adev->product_number) - 1;
|
||
|
|
}
|
||
|
|
memcpy(adev->product_number, buf, len);
|
||
|
|
adev->product_number[len] = '\0';
|
||
|
|
|
||
|
|
addrptr += size + 1;
|
||
|
|
size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
|
||
|
|
|
||
|
|
if (size < 1) {
|
||
|
|
DRM_ERROR("Failed to read FRU product version, ret:%d", size);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
addrptr += size + 1;
|
||
|
|
size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
|
||
|
|
|
||
|
|
if (size < 1) {
|
||
|
|
DRM_ERROR("Failed to read FRU serial number, ret:%d", size);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
len = size;
|
||
|
|
/* Serial number should only be 16 characters. Any more,
|
||
|
|
* and something could be wrong. Cap it at 16 to be safe
|
||
|
|
*/
|
||
|
|
if (len >= sizeof(adev->serial)) {
|
||
|
|
DRM_WARN("FRU Serial Number is larger than 16 characters. This is likely a mistake");
|
||
|
|
len = sizeof(adev->serial) - 1;
|
||
|
|
}
|
||
|
|
memcpy(adev->serial, buf, len);
|
||
|
|
adev->serial[len] = '\0';
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|