From acc0204cdb8e60d2e57053ed766d8280eb01118b Mon Sep 17 00:00:00 2001 From: Guchun Chen Date: Tue, 21 Jul 2020 18:02:00 +0800 Subject: [PATCH] drm/amdgpu: add bad page count threshold in module parameter(v3) bad_page_threshold could be configured to enable/disable the associated bad page retirement feature in RAS. When it's -1, ras will use typical bad page failure value to handle bad page retirement. When it's 0, disable bad page retirement, and no bad page will be recorded and saved. For other valid value, driver will use this manual value as the threshold value of totoal bad pages. v2: correct documentation of this parameter. v3: remove confused statement in documentation. Signed-off-by: Guchun Chen Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 11 +++++++++++ 2 files changed, 12 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 58e39429395f..e2eed5c630fc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -178,6 +178,7 @@ extern uint amdgpu_dm_abm_level; extern struct amdgpu_mgpu_info mgpu_info; extern int amdgpu_ras_enable; extern uint amdgpu_ras_mask; +extern int amdgpu_bad_page_threshold; extern int amdgpu_async_gfx_ring; extern int amdgpu_mcbp; extern int amdgpu_discovery; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 26127c7d2f32..dc47549641e2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -156,6 +156,7 @@ struct amdgpu_mgpu_info mgpu_info = { }; int amdgpu_ras_enable = -1; uint amdgpu_ras_mask = 0xffffffff; +int amdgpu_bad_page_threshold = -1; /** * DOC: vramlimit (int) @@ -765,6 +766,16 @@ module_param_named(tmz, amdgpu_tmz, int, 0444); MODULE_PARM_DESC(reset_method, "GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco)"); module_param_named(reset_method, amdgpu_reset_method, int, 0444); +/** + * DOC: bad_page_threshold (int) + * Bad page threshold is to specify the threshold value of faulty pages + * detected by RAS ECC, that may result in GPU entering bad status if total + * faulty pages by ECC exceed threshold value and leave it for user's further + * check. + */ +MODULE_PARM_DESC(bad_page_threshold, "Bad page threshold(-1 = auto(default value), 0 = disable bad page retirement)"); +module_param_named(bad_page_threshold, amdgpu_bad_page_threshold, int, 0444); + static const struct pci_device_id pciidlist[] = { #ifdef CONFIG_DRM_AMDGPU_SI {0x1002, 0x6780, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI}, -- 2.17.1