Commit e5db97a3 authored by Matt Roper's avatar Matt Roper Committed by Gustavo Sousa
Browse files

drm/xe/xe3p_lpg: Disable reporting of context switch status to GHWSP 



By default the hardware reports context switch status into the global
hardware status page.  The Xe driver doesn't use this information for
anything, and as of Xe3p, leaving this setting enabled will prevent
other hardware optimizations from being enabled.  Disable this reporting
as suggested by the tuning guide.

Bspec: 72161
Signed-off-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Reviewed-by: default avatarMatt Atwood <matthew.s.atwood@intel.com>
Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-7-636e1ad32688@intel.com


Signed-off-by: default avatarGustavo Sousa <gustavo.sousa@intel.com>
parent 4a0836a2

drivers/gpu/drm/xe/xe_tuning.c

+7 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#include <drm/drm_managed.h>

#include <drm/drm_print.h>



#include "regs/xe_engine_regs.h"

#include "regs/xe_gt_regs.h"

#include "xe_gt_types.h"

#include "xe_platform_types.h"
@@ -107,6 +108,12 @@ static const struct xe_rtp_entry_sr engine_tunings[] = { 
		       FUNC(xe_rtp_match_first_render_or_compute)),

	  XE_RTP_ACTIONS(SET(RT_CTRL, DIS_NULL_QUERY))

	},

	{ XE_RTP_NAME("Tuning: disable HW reporting of ctx switch to GHWSP"),

	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(3500, XE_RTP_END_VERSION_UNDEFINED)),

	  XE_RTP_ACTIONS(SET(CSFE_CHICKEN1(0),

			     GHWSP_CSB_REPORT_DIS,

			     XE_RTP_ACTION_FLAG(ENGINE_BASE)))

	},

};



static const struct xe_rtp_entry_sr lrc_tunings[] = {