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Commit 79d197f3 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: add DC feature mask module parameter 



Similar to ppfeaturemask.  Allows you to selectively enable/disable
DC features.

Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 593f79a2

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

+1 −0
Original line number Diff line number Diff line
@@ -152,6 +152,7 @@ extern int amdgpu_compute_multipipe; 
extern int amdgpu_gpu_recovery;

extern int amdgpu_emu_mode;

extern uint amdgpu_smu_memory_pool_size;

extern uint amdgpu_dc_feature_mask;

extern struct amdgpu_mgpu_info mgpu_info;



#ifdef CONFIG_DRM_AMDGPU_SI

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

+11 −0
Original line number Diff line number Diff line
@@ -127,6 +127,9 @@ int amdgpu_compute_multipipe = -1; 
int amdgpu_gpu_recovery = -1; /* auto */

int amdgpu_emu_mode = 0;

uint amdgpu_smu_memory_pool_size = 0;

/* FBC (bit 0) disabled by default*/

uint amdgpu_dc_feature_mask = 0;



struct amdgpu_mgpu_info mgpu_info = {

	.mutex = __MUTEX_INITIALIZER(mgpu_info.mutex),

};
@@ -631,6 +634,14 @@ module_param(halt_if_hws_hang, int, 0644); 
MODULE_PARM_DESC(halt_if_hws_hang, "Halt if HWS hang is detected (0 = off (default), 1 = on)");

#endif



/**

 * DOC: dcfeaturemask (uint)

 * Override display features enabled. See enum DC_FEATURE_MASK in drivers/gpu/drm/amd/include/amd_shared.h.

 * The default is the current set of stable display features.

 */

MODULE_PARM_DESC(dcfeaturemask, "all stable DC features enabled (default))");

module_param_named(dcfeaturemask, amdgpu_dc_feature_mask, uint, 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},

drivers/gpu/drm/amd/include/amd_shared.h

+4 −0
Original line number Diff line number Diff line
@@ -133,6 +133,10 @@ enum PP_FEATURE_MASK { 
	PP_AVFS_MASK = 0x40000,

};



enum DC_FEATURE_MASK {

	DC_FBC_MASK = 0x1,

};



/**

 * struct amd_ip_funcs - general hooks for managing amdgpu IP Blocks

 */