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drm/amdgpu: skip bad page reservation once issuing from eeprom write

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Once the ras recovery is issued from eeprom write itself,
bad page reservation should be ignored, otherwise, recursive
calling of writting to eeprom would happen.

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 2020-07-23 15:50:42 +08:00 • committed by Alex Deucher
parent b82e65a935
commit 35cd2cdadb
2 changed files with 11 additions and 5 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
View file

@ -62,8 +62,6 @@ const char *ras_block_string[] = {
#define ras_err_str(i) (ras_error_string[ffs(i)])
#define ras_block_str(i) (ras_block_string[i])
#define AMDGPU_RAS_FLAG_INIT_BY_VBIOS 1
#define AMDGPU_RAS_FLAG_INIT_NEED_RESET 2
#define RAS_DEFAULT_FLAGS (AMDGPU_RAS_FLAG_INIT_BY_VBIOS)
/* inject address is 52 bits */

14
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
View file

@ -31,6 +31,10 @@
#include "ta_ras_if.h"
#include "amdgpu_ras_eeprom.h"
#define AMDGPU_RAS_FLAG_INIT_BY_VBIOS (0x1 << 0)
#define AMDGPU_RAS_FLAG_INIT_NEED_RESET (0x1 << 1)
#define AMDGPU_RAS_FLAG_SKIP_BAD_PAGE_RESV (0x1 << 2)
enum amdgpu_ras_block {
AMDGPU_RAS_BLOCK__UMC = 0,
AMDGPU_RAS_BLOCK__SDMA,
@ -503,10 +507,14 @@ static inline int amdgpu_ras_reset_gpu(struct amdgpu_device *adev)
{
struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
/* save bad page to eeprom before gpu reset,
* i2c may be unstable in gpu reset
/*
* Save bad page to eeprom before gpu reset, i2c may be unstable
* in gpu reset.
*
* Also, exclude the case when ras recovery issuer is
* eeprom page write itself.
*/
if (in_task())
if (!(ras->flags & AMDGPU_RAS_FLAG_SKIP_BAD_PAGE_RESV) && in_task())
amdgpu_ras_reserve_bad_pages(adev);
if (atomic_cmpxchg(&ras->in_recovery, 0, 1) == 0)