From: Guchun Chen Date: Thu, 23 Jul 2020 07:50:42 +0000 (+0800) Subject: drm/amdgpu: skip bad page reservation once issuing from eeprom write X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=35cd2cdadbccf08e9b4d5a8fca4914dc37ab48e0;p=linux.git drm/amdgpu: skip bad page reservation once issuing from eeprom write 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 Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index 1a1652ea76b01..d081de232c666 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -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 */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h index 4672649a9293c..cf9f60202334d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h @@ -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)