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drm/amdgpu: add parameter to disable kernel queues

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On chips that support user queues, setting this option
will disable kernel queues to be used to validate
user queues without kernel queues.

Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2025-02-18 10:33:53 -05:00
parent cf97de5b54
commit a96a787d6d
2 changed files with 10 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -271,6 +271,7 @@ extern int amdgpu_agp;
extern int amdgpu_rebar;
extern int amdgpu_wbrf;
extern int amdgpu_disable_kq;
#define AMDGPU_VM_MAX_NUM_CTX 4096
#define AMDGPU_SG_THRESHOLD (256*1024*1024)

9
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -242,6 +242,7 @@ int amdgpu_wbrf = -1;
int amdgpu_damage_clips = -1; /* auto */
int amdgpu_umsch_mm_fwlog;
int amdgpu_rebar = -1; /* auto */
int amdgpu_disable_kq = -1;
DECLARE_DYNDBG_CLASSMAP(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, 0,
"DRM_UT_CORE",
@ -1110,6 +1111,14 @@ module_param_named(wbrf, amdgpu_wbrf, int, 0444);
MODULE_PARM_DESC(rebar, "Resizable BAR (-1 = auto (default), 0 = disable, 1 = enable)");
module_param_named(rebar, amdgpu_rebar, int, 0444);
/**
* DOC: disable_kq (int)
* Disable kernel queues on systems that support user queues.
* (0 = kernel queues enabled, 1 = kernel queues disabled, -1 = auto (default setting))
*/
MODULE_PARM_DESC(disable_kq, "Disable kernel queues (-1 = auto (default), 0 = enable KQ, 1 = disable KQ)");
module_param_named(disable_kq, amdgpu_disable_kq, int, 0444);
/* These devices are not supported by amdgpu.
* They are supported by the mach64, r128, radeon drivers
*/