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drm/amdgpu: add module parameter choose reset mode

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Default value is auto, doesn't change
original reset method logic.

v2: change to use parameter reset_method
v3: add warn msg if specified mode isn't supported

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenhui Sheng
2020-07-14 16:29:18 +08:00
committed by Alex Deucher
parent 311531f087
commit 273da6ff7c
7 changed files with 47 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@@ -149,6 +149,7 @@ int amdgpu_mes = 0;
int amdgpu_noretry;
int amdgpu_force_asic_type = -1;
int amdgpu_tmz = 0;
int amdgpu_reset_method = -1; /* auto */
struct amdgpu_mgpu_info mgpu_info = {
.mutex = __MUTEX_INITIALIZER(mgpu_info.mutex),
@@ -757,6 +758,13 @@ module_param_named(abmlevel, amdgpu_dm_abm_level, uint, 0444);
MODULE_PARM_DESC(tmz, "Enable TMZ feature (-1 = auto, 0 = off (default), 1 = on)");
module_param_named(tmz, amdgpu_tmz, int, 0444);
/**
* DOC: reset_method (int)
* GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco)
*/
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);
static const struct pci_device_id pciidlist[] = {
#ifdef CONFIG_DRM_AMDGPU_SI
{0x1002, 0x6780, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI},