Commit ec02e49f authored by Ashutosh Dixit's avatar Ashutosh Dixit
Browse files

drm/xe/rtp: Whitelist OAMERT MMIO trigger registers 



Whitelist OAMERT registers to enable userspace to execute MMIO triggers on
OAMERT units. Registers are whitelisted for compute and copy class engines.

Signed-off-by: default avatarAshutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: default avatarUmesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20251205212613.826224-3-ashutosh.dixit@intel.com
parent ab39e2a8

drivers/gpu/drm/xe/xe_reg_whitelist.c

+19 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
#include "regs/xe_gt_regs.h"

#include "regs/xe_oa_regs.h"

#include "regs/xe_regs.h"

#include "xe_device.h"

#include "xe_gt_types.h"

#include "xe_gt_printk.h"

#include "xe_platform_types.h"
@@ -26,6 +27,13 @@ static bool match_not_render(const struct xe_device *xe, 
	return hwe->class != XE_ENGINE_CLASS_RENDER;

}



static bool match_has_mert(const struct xe_device *xe,

			   const struct xe_gt *gt,

			   const struct xe_hw_engine *hwe)

{

	return xe_device_has_mert((struct xe_device *)xe);

}



static const struct xe_rtp_entry_sr register_whitelist[] = {

	{ XE_RTP_NAME("WaAllowPMDepthAndInvocationCountAccessFromUMD, 1408556865"),

	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1210), ENGINE_CLASS(RENDER)),
@@ -94,6 +102,9 @@ static const struct xe_rtp_entry_sr register_whitelist[] = { 
			      OAM_STATUS(XE_OAM_SCMI_1_BASE_ADJ), \

			      OAM_HEAD_POINTER(XE_OAM_SCMI_1_BASE_ADJ))



#define WHITELIST_OA_MERT_MMIO_TRG \

	WHITELIST_OA_MMIO_TRG(OAMERT_MMIO_TRG, OAMERT_STATUS, OAMERT_HEAD_POINTER)



	{ XE_RTP_NAME("oag_mmio_trg_rcs"),

	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, XE_RTP_END_VERSION_UNDEFINED),

		       ENGINE_CLASS(RENDER)),
@@ -114,6 +125,14 @@ static const struct xe_rtp_entry_sr register_whitelist[] = { 
		       ENGINE_CLASS(VIDEO_ENHANCE)),

	  XE_RTP_ACTIONS(WHITELIST_OAM_MMIO_TRG)

	},

	{ XE_RTP_NAME("oa_mert_mmio_trg_ccs"),

	  XE_RTP_RULES(FUNC(match_has_mert), ENGINE_CLASS(COMPUTE)),

	  XE_RTP_ACTIONS(WHITELIST_OA_MERT_MMIO_TRG)

	},

	{ XE_RTP_NAME("oa_mert_mmio_trg_bcs"),

	  XE_RTP_RULES(FUNC(match_has_mert), ENGINE_CLASS(COPY)),

	  XE_RTP_ACTIONS(WHITELIST_OA_MERT_MMIO_TRG)

	},

};



static void whitelist_apply_to_hwe(struct xe_hw_engine *hwe)