linux-stable.git/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c, branch v6.0 Linux kernel stable tree drm/amdgpu: disable FRU access on special SIENNA CICHLID card 2022-08-30T20:56:00+00:00 Guchun Chen guchun.chen@amd.com 2022-08-24T15:00:02+00:00 c8fea9273fd1be308668496badfcbd55183e0dd3 Below driver load error will be printed, not friendly to end user. amdgpu: ATOM BIOS: 113-D603GLXE-077 [drm] FRU: Failed to get size field [drm:amdgpu_fru_get_product_info [amdgpu]] *ERROR* Failed to read FRU Manufacturer, ret:-5 Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Below driver load error will be printed, not friendly to end user.

amdgpu: ATOM BIOS: 113-D603GLXE-077
[drm] FRU: Failed to get size field
[drm:amdgpu_fru_get_product_info [amdgpu]] *ERROR* Failed to read FRU Manufacturer, ret:-5

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Prevent random memory access in FRU code 2022-02-07T22:59:53+00:00 Luben Tuikov luben.tuikov@amd.com 2022-02-04T00:48:24+00:00 00b14ce075732edb2935d738de990e9aa96f1e08 Prevent random memory access in the FRU EEPROM code by passing the size of the destination buffer to the reading routine, and reading no more than the size of the buffer. Cc: Kent Russell <kent.russell@amd.com> Cc: Alex Deucher <Alexander.Deucher@amd.com> Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> Reviewed-by: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Prevent random memory access in the FRU EEPROM code by passing the size of
the destination buffer to the reading routine, and reading no more than the
size of the buffer.

Cc: Kent Russell <kent.russell@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Don't offset by 2 in FRU EEPROM 2022-02-07T22:59:53+00:00 Luben Tuikov luben.tuikov@amd.com 2022-02-04T00:05:20+00:00 3f3a24a0a3a58677d2b4f3c442d7a1be05afb123 Read buffers no longer expose the I2C address, and so we don't need to offset by two when we get the read data. Cc: Alex Deucher <Alexander.Deucher@amd.com> Cc: Kent Russell <kent.russell@amd.com> Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com> Fixes: bd607166af7fe3 ("drm/amdgpu: Enable reading FRU chip via I2C v3") Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> Reviewed-by: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Read buffers no longer expose the I2C address, and so we don't need to
offset by two when we get the read data.

Cc: Alex Deucher <Alexander.Deucher@amd.com>
Cc: Kent Russell <kent.russell@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Fixes: bd607166af7fe3 ("drm/amdgpu: Enable reading FRU chip via I2C v3")
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Nerf "buff" to "buf" 2022-02-07T22:59:53+00:00 Luben Tuikov luben.tuikov@amd.com 2022-02-04T00:32:58+00:00 3f1e2e9d9993a3b1e33661fee26566f091e01b2b Buffer is abbreviated "buf" (buf-fer), not "buff" (buff-er). This is consistent with the rest of the kernel code. Cc: Kent Russell <kent.russell@amd.com> Cc: Alex Deucher <Alexander.Deucher@amd.com> Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> Reviewed-by: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Buffer is abbreviated "buf" (buf-fer), not "buff" (buff-er).
This is consistent with the rest of the kernel code.

Cc: Kent Russell <kent.russell@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd: Enable FRU EEPROM for Sienna Cichlid 2022-01-27T20:49:56+00:00 Luben Tuikov luben.tuikov@amd.com 2022-01-27T18:49:30+00:00 3ed893396b0132fa5a4d3fe3f9ba358678c6dba3 Enable the FRU EEPROM I2C bus for Sienna Cichlid server boards, for which it is enabled by checking the VBIOS version. Cc: Roy Sun <Roy.Sun@amd.com> Cc: Alex Deucher <Alexander.Deucher@amd.com> Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Enable the FRU EEPROM I2C bus for Sienna Cichlid
server boards, for which it is enabled by checking
the VBIOS version.

Cc: Roy Sun <Roy.Sun@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd: Expose the FRU SMU I2C bus 2022-01-27T20:49:48+00:00 Luben Tuikov luben.tuikov@amd.com 2022-01-20T01:20:53+00:00 2f60dd50769efcd6eedd0dc6b3f419cdd1f1f1fa Expose both SMU I2C buses. Some boards use the same bus for both the RAS and FRU EEPROMs and others use different buses. This enables the additional I2C bus and sets the right buses to use for RAS and FRU EEPROM access. Cc: Roy Sun <Roy.Sun@amd.com> Co-developed-by: Alex Deucher <Alexander.Deucher@amd.com> Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Expose both SMU I2C buses. Some boards use the same bus for both the RAS
and FRU EEPROMs and others use different buses.  This enables the
additional I2C bus and sets the right buses to use for RAS and FRU EEPROM
access.

Cc: Roy Sun <Roy.Sun@amd.com>
Co-developed-by: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Disable FRU EEPROM access for SRIOV 2022-01-25T23:00:32+00:00 shaoyunl shaoyun.liu@amd.com 2022-01-20T15:39:41+00:00 901abf367d3eecd54f21829ced48c20f53c74c57 VF acces the EEPROM is blocked by security policy, we might need other way to get SKUs info for VF v2: squash in compilation fix from Luben Signed-off-by: shaoyunl <shaoyun.liu@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
VF acces the EEPROM is blocked by security policy, we might need other way
to get SKUs info for VF

v2: squash in compilation fix from Luben

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Access the FRU on Aldebaran 2021-12-30T13:54:43+00:00 Kent Russell kent.russell@amd.com 2021-12-13T18:59:43+00:00 67416bf85345b6990fe2adc42ab082bfefc578bd This is supported, although the offset is different from VG20, so fix that with a variable and enable getting the product name and serial number from the FRU. Do this for all SKUs since all SKUs have the FRU Signed-off-by: Kent Russell <kent.russell@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
This is supported, although the offset is different from VG20, so fix
that with a variable and enable getting the product name and serial
number from the FRU. Do this for all SKUs since all SKUs have the FRU

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Increase potential product_name to 64 characters 2021-12-30T13:54:43+00:00 Kent Russell kent.russell@amd.com 2021-12-13T18:14:17+00:00 6c92fe5fa5a1f24e50296de9d24d36a1b605b208 Having seen at least 1 42-character product_name, bump the number up to 64, and put that definition into amdgpu.h to make future adjustments simpler. Signed-off-by: Kent Russell <kent.russell@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Having seen at least 1 42-character product_name, bump the number up to
64, and put that definition into amdgpu.h to make future adjustments
simpler.

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: EEPROM: add explicit read and write 2021-07-01T04:24:40+00:00 Luben Tuikov luben.tuikov@amd.com 2021-03-11T22:12:32+00:00 16ef797737c84462a3632dd4f8d77fe0f000428b Add explicit amdgpu_eeprom_read() and amdgpu_eeprom_write() for clarity. Cc: Jean Delvare <jdelvare@suse.de> Cc: Alexander Deucher <Alexander.Deucher@amd.com> Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com> Cc: Lijo Lazar <Lijo.Lazar@amd.com> Cc: Stanley Yang <Stanley.Yang@amd.com> Cc: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Acked-by: Alexander Deucher <Alexander.Deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Add explicit amdgpu_eeprom_read() and
amdgpu_eeprom_write() for clarity.

Cc: Jean Delvare <jdelvare@suse.de>
Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Cc: Lijo Lazar <Lijo.Lazar@amd.com>
Cc: Stanley Yang <Stanley.Yang@amd.com>
Cc: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>