Commit a96a787d authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: add parameter to disable kernel queues 



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: default avatarPrike Liang <Prike.Liang@amd.com>
Reviewed-by: default avatarSunil Khatri <sunil.khatri@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent cf97de5b

drivers/gpu/drm/amd/amdgpu/amdgpu.h

+1 −0
Original line number Diff line number Diff line
@@ -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)

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

+9 −0
Original line number Diff line number Diff line
@@ -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

 */