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drm/amdgpu: validate bad page threshold in ras(v3)

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Bad page threshold value should be valid in the range between
-1 and max records length of eeprom. It could determine when
saved bad pages exceed threshold value, and proceed corresponding
actions.

v2: When using the default typical value, it should be min
value between typical value and eeprom max records length.

v3: drop the case of setting bad_page_cnt_threshold to be
    0xFFFFFFFF, as it confuses user.

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Guchun Chen
2020-07-22 10:00:27 +08:00
committed by Alex Deucher
parent acc0204cdb
commit c84d46707e
4 changed files with 58 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h
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@@ -84,6 +84,8 @@ int amdgpu_ras_eeprom_process_recods(struct amdgpu_ras_eeprom_control *control,
bool write,
int num);
inline uint32_t amdgpu_ras_eeprom_get_record_max_length(void);
void amdgpu_ras_eeprom_test(struct amdgpu_ras_eeprom_control *control);
#endif // _AMDGPU_RAS_EEPROM_H