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authorYong Zhao <Yong.Zhao@amd.com>2019-08-30 18:09:10 -0400
committerAlex Deucher <alexander.deucher@amd.com>2019-09-16 09:54:25 -0500
commit4e66d7d2156243bf6866fc83cda0c4b115627e6d (patch)
tree44730ddd6dd56d6137eb8874b9e30dc20d1b9589 /drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
parentbb42eda28407f62288398b4ef846ae64c98cdc73 (diff)
drm/amdgpu: Add a kernel parameter for specifying the asic type
As more and more new asics start to reuse the old device IDs before launch, there is a need to quickly override the existing asic type corresponding to the reused device ID through a kernel parameter. With this, engineers no longer need to rely on local hack patches, facilitating cooperation across teams. Signed-off-by: Yong Zhao <Yong.Zhao@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 62fe102ed39e..0f0d6fb6de32 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -146,6 +146,7 @@ int amdgpu_mcbp = 0;
int amdgpu_discovery = -1;
int amdgpu_mes = 0;
int amdgpu_noretry = 1;
+int amdgpu_force_asic_type = -1;
struct amdgpu_mgpu_info mgpu_info = {
.mutex = __MUTEX_INITIALIZER(mgpu_info.mutex),
@@ -616,6 +617,16 @@ MODULE_PARM_DESC(noretry,
"Disable retry faults (0 = retry enabled, 1 = retry disabled (default))");
module_param_named(noretry, amdgpu_noretry, int, 0644);
+/**
+ * DOC: force_asic_type (int)
+ * A non negative value used to specify the asic type for all supported GPUs.
+ */
+MODULE_PARM_DESC(force_asic_type,
+ "A non negative value used to specify the asic type for all supported GPUs");
+module_param_named(force_asic_type, amdgpu_force_asic_type, int, 0444);
+
+
+
#ifdef CONFIG_HSA_AMD
/**
* DOC: sched_policy (int)