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JustOS/linux-6.13/drivers/gpu/drm/xe/xe_wa.c
justuser 02e73b8cd9 up
2025-01-24 17:00:19 +03:00

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// SPDX-License-Identifier: MIT
/*
* Copyright © 2022 Intel Corporation
*/
#include "xe_wa.h"
#include <drm/drm_managed.h>
#include <kunit/visibility.h>
#include <linux/compiler_types.h>
#include <linux/fault-inject.h>
#include <generated/xe_wa_oob.h>
#include "regs/xe_engine_regs.h"
#include "regs/xe_gt_regs.h"
#include "regs/xe_regs.h"
#include "xe_device_types.h"
#include "xe_force_wake.h"
#include "xe_gt.h"
#include "xe_hw_engine_types.h"
#include "xe_mmio.h"
#include "xe_platform_types.h"
#include "xe_rtp.h"
#include "xe_sriov.h"
#include "xe_step.h"
/**
* DOC: Hardware workarounds
*
* Hardware workarounds are register programming documented to be executed in
* the driver that fall outside of the normal programming sequences for a
* platform. There are some basic categories of workarounds, depending on
* how/when they are applied:
*
* - LRC workarounds: workarounds that touch registers that are
* saved/restored to/from the HW context image. The list is emitted (via Load
* Register Immediate commands) once when initializing the device and saved in
* the default context. That default context is then used on every context
* creation to have a "primed golden context", i.e. a context image that
* already contains the changes needed to all the registers.
*
* - Engine workarounds: the list of these WAs is applied whenever the specific
* engine is reset. It's also possible that a set of engine classes share a
* common power domain and they are reset together. This happens on some
* platforms with render and compute engines. In this case (at least) one of
* them need to keeep the workaround programming: the approach taken in the
* driver is to tie those workarounds to the first compute/render engine that
* is registered. When executing with GuC submission, engine resets are
* outside of kernel driver control, hence the list of registers involved in
* written once, on engine initialization, and then passed to GuC, that
* saves/restores their values before/after the reset takes place. See
* ``drivers/gpu/drm/xe/xe_guc_ads.c`` for reference.
*
* - GT workarounds: the list of these WAs is applied whenever these registers
* revert to their default values: on GPU reset, suspend/resume [1]_, etc.
*
* - Register whitelist: some workarounds need to be implemented in userspace,
* but need to touch privileged registers. The whitelist in the kernel
* instructs the hardware to allow the access to happen. From the kernel side,
* this is just a special case of a MMIO workaround (as we write the list of
* these to/be-whitelisted registers to some special HW registers).
*
* - Workaround batchbuffers: buffers that get executed automatically by the
* hardware on every HW context restore. These buffers are created and
* programmed in the default context so the hardware always go through those
* programming sequences when switching contexts. The support for workaround
* batchbuffers is enabled these hardware mechanisms:
*
* #. INDIRECT_CTX: A batchbuffer and an offset are provided in the default
* context, pointing the hardware to jump to that location when that offset
* is reached in the context restore. Workaround batchbuffer in the driver
* currently uses this mechanism for all platforms.
*
* #. BB_PER_CTX_PTR: A batchbuffer is provided in the default context,
* pointing the hardware to a buffer to continue executing after the
* engine registers are restored in a context restore sequence. This is
* currently not used in the driver.
*
* - Other/OOB: There are WAs that, due to their nature, cannot be applied from
* a central place. Those are peppered around the rest of the code, as needed.
* Workarounds related to the display IP are the main example.
*
* .. [1] Technically, some registers are powercontext saved & restored, so they
* survive a suspend/resume. In practice, writing them again is not too
* costly and simplifies things, so it's the approach taken in the driver.
*
* .. note::
* Hardware workarounds in xe work the same way as in i915, with the
* difference of how they are maintained in the code. In xe it uses the
* xe_rtp infrastructure so the workarounds can be kept in tables, following
* a more declarative approach rather than procedural.
*/
#undef XE_REG_MCR
#define XE_REG_MCR(...) XE_REG(__VA_ARGS__, .mcr = 1)
__diag_push();
__diag_ignore_all("-Woverride-init", "Allow field overrides in table");
static const struct xe_rtp_entry_sr gt_was[] = {
{ XE_RTP_NAME("14011060649"),
XE_RTP_RULES(MEDIA_VERSION_RANGE(1200, 1255),
ENGINE_CLASS(VIDEO_DECODE),
FUNC(xe_rtp_match_even_instance)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F10(0), IECPUNIT_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
{ XE_RTP_NAME("14011059788"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1210)),
XE_RTP_ACTIONS(SET(DFR_RATIO_EN_AND_CHICKEN, DFR_DISABLE))
},
{ XE_RTP_NAME("14015795083"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1260)),
XE_RTP_ACTIONS(CLR(MISCCPCTL, DOP_CLOCK_GATE_RENDER_ENABLE))
},
/* DG1 */
{ XE_RTP_NAME("1409420604"),
XE_RTP_RULES(PLATFORM(DG1)),
XE_RTP_ACTIONS(SET(SUBSLICE_UNIT_LEVEL_CLKGATE2, CPSSUNIT_CLKGATE_DIS))
},
{ XE_RTP_NAME("1408615072"),
XE_RTP_RULES(PLATFORM(DG1)),
XE_RTP_ACTIONS(SET(UNSLICE_UNIT_LEVEL_CLKGATE2, VSUNIT_CLKGATE2_DIS))
},
/* DG2 */
{ XE_RTP_NAME("22010523718"),
XE_RTP_RULES(SUBPLATFORM(DG2, G10)),
XE_RTP_ACTIONS(SET(UNSLICE_UNIT_LEVEL_CLKGATE, CG3DDISCFEG_CLKGATE_DIS))
},
{ XE_RTP_NAME("14011006942"),
XE_RTP_RULES(SUBPLATFORM(DG2, G10)),
XE_RTP_ACTIONS(SET(SUBSLICE_UNIT_LEVEL_CLKGATE, DSS_ROUTER_CLKGATE_DIS))
},
{ XE_RTP_NAME("14014830051"),
XE_RTP_RULES(PLATFORM(DG2)),
XE_RTP_ACTIONS(CLR(SARB_CHICKEN1, COMP_CKN_IN))
},
{ XE_RTP_NAME("18018781329"),
XE_RTP_RULES(PLATFORM(DG2)),
XE_RTP_ACTIONS(SET(RENDER_MOD_CTRL, FORCE_MISS_FTLB),
SET(COMP_MOD_CTRL, FORCE_MISS_FTLB),
SET(XEHP_VDBX_MOD_CTRL, FORCE_MISS_FTLB),
SET(XEHP_VEBX_MOD_CTRL, FORCE_MISS_FTLB))
},
{ XE_RTP_NAME("1509235366"),
XE_RTP_RULES(PLATFORM(DG2)),
XE_RTP_ACTIONS(SET(XEHP_GAMCNTRL_CTRL,
INVALIDATION_BROADCAST_MODE_DIS |
GLOBAL_INVALIDATION_MODE))
},
/* PVC */
{ XE_RTP_NAME("18018781329"),
XE_RTP_RULES(PLATFORM(PVC)),
XE_RTP_ACTIONS(SET(RENDER_MOD_CTRL, FORCE_MISS_FTLB),
SET(COMP_MOD_CTRL, FORCE_MISS_FTLB),
SET(XEHP_VDBX_MOD_CTRL, FORCE_MISS_FTLB),
SET(XEHP_VEBX_MOD_CTRL, FORCE_MISS_FTLB))
},
{ XE_RTP_NAME("16016694945"),
XE_RTP_RULES(PLATFORM(PVC)),
XE_RTP_ACTIONS(SET(XEHPC_LNCFMISCCFGREG0, XEHPC_OVRLSCCC))
},
/* Xe_LPG */
{ XE_RTP_NAME("14015795083"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1271), GRAPHICS_STEP(A0, B0)),
XE_RTP_ACTIONS(CLR(MISCCPCTL, DOP_CLOCK_GATE_RENDER_ENABLE))
},
{ XE_RTP_NAME("14018575942"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1274)),
XE_RTP_ACTIONS(SET(COMP_MOD_CTRL, FORCE_MISS_FTLB))
},
{ XE_RTP_NAME("22016670082"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1274)),
XE_RTP_ACTIONS(SET(SQCNT1, ENFORCE_RAR))
},
/* Xe_LPM+ */
{ XE_RTP_NAME("16021867713"),
XE_RTP_RULES(MEDIA_VERSION(1300),
ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F1C(0), MFXPIPE_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
{ XE_RTP_NAME("22016670082"),
XE_RTP_RULES(MEDIA_VERSION(1300)),
XE_RTP_ACTIONS(SET(XELPMP_SQCNT1, ENFORCE_RAR))
},
/* Xe2_LPG */
{ XE_RTP_NAME("16020975621"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0)),
XE_RTP_ACTIONS(SET(XEHP_SLICE_UNIT_LEVEL_CLKGATE, SBEUNIT_CLKGATE_DIS))
},
{ XE_RTP_NAME("14018157293"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0)),
XE_RTP_ACTIONS(SET(XEHPC_L3CLOS_MASK(0), ~0),
SET(XEHPC_L3CLOS_MASK(1), ~0),
SET(XEHPC_L3CLOS_MASK(2), ~0),
SET(XEHPC_L3CLOS_MASK(3), ~0))
},
/* Xe2_LPM */
{ XE_RTP_NAME("14017421178"),
XE_RTP_RULES(MEDIA_VERSION(2000),
ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F10(0), IECPUNIT_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
{ XE_RTP_NAME("16021867713"),
XE_RTP_RULES(MEDIA_VERSION(2000),
ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F1C(0), MFXPIPE_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
{ XE_RTP_NAME("14019449301"),
XE_RTP_RULES(MEDIA_VERSION(2000), ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F08(0), CG3DDISHRS_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
/* Xe2_HPM */
{ XE_RTP_NAME("16021867713"),
XE_RTP_RULES(MEDIA_VERSION(1301),
ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F1C(0), MFXPIPE_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
{ XE_RTP_NAME("14020316580"),
XE_RTP_RULES(MEDIA_VERSION(1301)),
XE_RTP_ACTIONS(CLR(POWERGATE_ENABLE,
VDN_HCP_POWERGATE_ENABLE(0) |
VDN_MFXVDENC_POWERGATE_ENABLE(0) |
VDN_HCP_POWERGATE_ENABLE(2) |
VDN_MFXVDENC_POWERGATE_ENABLE(2))),
},
{ XE_RTP_NAME("14019449301"),
XE_RTP_RULES(MEDIA_VERSION(1301), ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F08(0), CG3DDISHRS_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
/* Xe3_LPG */
{ XE_RTP_NAME("14021871409"),
XE_RTP_RULES(GRAPHICS_VERSION(3000), GRAPHICS_STEP(A0, B0)),
XE_RTP_ACTIONS(SET(UNSLCGCTL9454, LSCFE_CLKGATE_DIS))
},
/* Xe3_LPM */
{ XE_RTP_NAME("16021867713"),
XE_RTP_RULES(MEDIA_VERSION(3000),
ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F1C(0), MFXPIPE_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
{ XE_RTP_NAME("16021865536"),
XE_RTP_RULES(MEDIA_VERSION(3000),
ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F10(0), IECPUNIT_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
{ XE_RTP_NAME("14021486841"),
XE_RTP_RULES(MEDIA_VERSION(3000), MEDIA_STEP(A0, B0),
ENGINE_CLASS(VIDEO_DECODE)),
XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F10(0), RAMDFTUNIT_CLKGATE_DIS)),
XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
},
{}
};
static const struct xe_rtp_entry_sr engine_was[] = {
{ XE_RTP_NAME("22010931296, 18011464164, 14010919138"),
XE_RTP_RULES(GRAPHICS_VERSION(1200), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(FF_THREAD_MODE(RENDER_RING_BASE),
FF_TESSELATION_DOP_GATE_DISABLE))
},
{ XE_RTP_NAME("1409804808"),
XE_RTP_RULES(GRAPHICS_VERSION(1200),
ENGINE_CLASS(RENDER),
IS_INTEGRATED),
XE_RTP_ACTIONS(SET(ROW_CHICKEN2, PUSH_CONST_DEREF_HOLD_DIS))
},
{ XE_RTP_NAME("14010229206, 1409085225"),
XE_RTP_RULES(GRAPHICS_VERSION(1200),
ENGINE_CLASS(RENDER),
IS_INTEGRATED),
XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH))
},
{ XE_RTP_NAME("1606931601"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1210), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN2, DISABLE_EARLY_READ))
},
{ XE_RTP_NAME("14010826681, 1606700617, 22010271021, 18019627453"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1255), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(CS_DEBUG_MODE1(RENDER_RING_BASE),
FF_DOP_CLOCK_GATE_DISABLE))
},
{ XE_RTP_NAME("1406941453"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1210), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(SAMPLER_MODE, ENABLE_SMALLPL))
},
{ XE_RTP_NAME("FtrPerCtxtPreemptionGranularityControl"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1250), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(FF_SLICE_CS_CHICKEN1(RENDER_RING_BASE),
FFSC_PERCTX_PREEMPT_CTRL))
},
/* TGL */
{ XE_RTP_NAME("1607297627, 1607030317, 1607186500"),
XE_RTP_RULES(PLATFORM(TIGERLAKE), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(RING_PSMI_CTL(RENDER_RING_BASE),
WAIT_FOR_EVENT_POWER_DOWN_DISABLE |
RC_SEMA_IDLE_MSG_DISABLE))
},
/* RKL */
{ XE_RTP_NAME("1607297627, 1607030317, 1607186500"),
XE_RTP_RULES(PLATFORM(ROCKETLAKE), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(RING_PSMI_CTL(RENDER_RING_BASE),
WAIT_FOR_EVENT_POWER_DOWN_DISABLE |
RC_SEMA_IDLE_MSG_DISABLE))
},
/* ADL-P */
{ XE_RTP_NAME("1607297627, 1607030317, 1607186500"),
XE_RTP_RULES(PLATFORM(ALDERLAKE_P), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(RING_PSMI_CTL(RENDER_RING_BASE),
WAIT_FOR_EVENT_POWER_DOWN_DISABLE |
RC_SEMA_IDLE_MSG_DISABLE))
},
/* DG2 */
{ XE_RTP_NAME("22013037850"),
XE_RTP_RULES(PLATFORM(DG2), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW,
DISABLE_128B_EVICTION_COMMAND_UDW))
},
{ XE_RTP_NAME("22014226127"),
XE_RTP_RULES(PLATFORM(DG2), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, DISABLE_D8_D16_COASLESCE))
},
{ XE_RTP_NAME("18017747507"),
XE_RTP_RULES(PLATFORM(DG2), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(VFG_PREEMPTION_CHICKEN,
POLYGON_TRIFAN_LINELOOP_DISABLE))
},
{ XE_RTP_NAME("22012826095, 22013059131"),
XE_RTP_RULES(SUBPLATFORM(DG2, G11),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(FIELD_SET(LSC_CHICKEN_BIT_0_UDW,
MAXREQS_PER_BANK,
REG_FIELD_PREP(MAXREQS_PER_BANK, 2)))
},
{ XE_RTP_NAME("22013059131"),
XE_RTP_RULES(SUBPLATFORM(DG2, G11),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, FORCE_1_SUB_MESSAGE_PER_FRAGMENT))
},
{ XE_RTP_NAME("14015227452"),
XE_RTP_RULES(PLATFORM(DG2),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE))
},
{ XE_RTP_NAME("18028616096"),
XE_RTP_RULES(PLATFORM(DG2),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW, UGM_FRAGMENT_THRESHOLD_TO_3))
},
{ XE_RTP_NAME("22015475538"),
XE_RTP_RULES(PLATFORM(DG2),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8))
},
{ XE_RTP_NAME("22012654132"),
XE_RTP_RULES(SUBPLATFORM(DG2, G11),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(CACHE_MODE_SS, ENABLE_PREFETCH_INTO_IC,
/*
* Register can't be read back for verification on
* DG2 due to Wa_14012342262
*/
.read_mask = 0))
},
{ XE_RTP_NAME("1509727124"),
XE_RTP_RULES(PLATFORM(DG2), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(SAMPLER_MODE, SC_DISABLE_POWER_OPTIMIZATION_EBB))
},
{ XE_RTP_NAME("22012856258"),
XE_RTP_RULES(PLATFORM(DG2), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN2, DISABLE_READ_SUPPRESSION))
},
{ XE_RTP_NAME("22010960976, 14013347512"),
XE_RTP_RULES(PLATFORM(DG2), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(CLR(XEHP_HDC_CHICKEN0,
LSC_L1_FLUSH_CTL_3D_DATAPORT_FLUSH_EVENTS_MASK))
},
{ XE_RTP_NAME("14015150844"),
XE_RTP_RULES(PLATFORM(DG2), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(XEHP_HDC_CHICKEN0, DIS_ATOMIC_CHAINING_TYPED_WRITES,
XE_RTP_NOCHECK))
},
/* PVC */
{ XE_RTP_NAME("22014226127"),
XE_RTP_RULES(PLATFORM(PVC), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, DISABLE_D8_D16_COASLESCE))
},
{ XE_RTP_NAME("14015227452"),
XE_RTP_RULES(PLATFORM(PVC), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE))
},
{ XE_RTP_NAME("18020744125"),
XE_RTP_RULES(PLATFORM(PVC), FUNC(xe_rtp_match_first_render_or_compute),
ENGINE_CLASS(COMPUTE)),
XE_RTP_ACTIONS(SET(RING_HWSTAM(RENDER_RING_BASE), ~0))
},
{ XE_RTP_NAME("14014999345"),
XE_RTP_RULES(PLATFORM(PVC), ENGINE_CLASS(COMPUTE),
GRAPHICS_STEP(B0, C0)),
XE_RTP_ACTIONS(SET(CACHE_MODE_SS, DISABLE_ECC))
},
/* Xe_LPG */
{ XE_RTP_NAME("14017856879"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1274),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN3, DIS_FIX_EOT1_FLUSH))
},
{ XE_RTP_NAME("14015150844"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1271),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(XEHP_HDC_CHICKEN0, DIS_ATOMIC_CHAINING_TYPED_WRITES,
XE_RTP_NOCHECK))
},
{ XE_RTP_NAME("14020495402"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1274),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN2, DISABLE_TDL_SVHS_GATING))
},
/* Xe2_LPG */
{ XE_RTP_NAME("18032247524"),
XE_RTP_RULES(GRAPHICS_VERSION(2004),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, SEQUENTIAL_ACCESS_UPGRADE_DISABLE))
},
{ XE_RTP_NAME("16018712365"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW, XE2_ALLOC_DPA_STARVE_FIX_DIS))
},
{ XE_RTP_NAME("14018957109"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(HALF_SLICE_CHICKEN5, DISABLE_SAMPLE_G_PERFORMANCE))
},
{ XE_RTP_NAME("14020338487"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN3, XE2_EUPEND_CHK_FLUSH_DIS))
},
{ XE_RTP_NAME("18034896535, 16021540221"), /* 16021540221: GRAPHICS_STEP(A0, B0) */
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2001, 2004),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH))
},
{ XE_RTP_NAME("14019322943"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, TGM_WRITE_EOM_FORCE))
},
{ XE_RTP_NAME("14018471104"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW, ENABLE_SMP_LD_RENDER_SURFACE_CONTROL))
},
{ XE_RTP_NAME("16018737384"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN, EARLY_EOT_DIS))
},
/*
* These two workarounds are the same, just applying to different
* engines. Although Wa_18032095049 (for the RCS) isn't required on
* all steppings, disabling these reports has no impact for our
* driver or the GuC, so we go ahead and treat it the same as
* Wa_16021639441 which does apply to all steppings.
*/
{ XE_RTP_NAME("18032095049, 16021639441"),
XE_RTP_RULES(GRAPHICS_VERSION(2004)),
XE_RTP_ACTIONS(SET(CSFE_CHICKEN1(0),
GHWSP_CSB_REPORT_DIS |
PPHWSP_CSB_AND_TIMESTAMP_REPORT_DIS,
XE_RTP_ACTION_FLAG(ENGINE_BASE)))
},
{ XE_RTP_NAME("16018610683"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(TDL_TSL_CHICKEN, SLM_WMTP_RESTORE))
},
{ XE_RTP_NAME("14021402888"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(HALF_SLICE_CHICKEN7, CLEAR_OPTIMIZATION_DISABLE))
},
/* Xe2_HPG */
{ XE_RTP_NAME("16018712365"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW, XE2_ALLOC_DPA_STARVE_FIX_DIS))
},
{ XE_RTP_NAME("16018737384"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN, EARLY_EOT_DIS))
},
{ XE_RTP_NAME("14019988906"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(XEHP_PSS_CHICKEN, FLSH_IGNORES_PSD))
},
{ XE_RTP_NAME("14019877138"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(XEHP_PSS_CHICKEN, FD_END_COLLECT))
},
{ XE_RTP_NAME("14020338487"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN3, XE2_EUPEND_CHK_FLUSH_DIS))
},
{ XE_RTP_NAME("18032247524"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, SEQUENTIAL_ACCESS_UPGRADE_DISABLE))
},
{ XE_RTP_NAME("14018471104"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW, ENABLE_SMP_LD_RENDER_SURFACE_CONTROL))
},
/*
* Although this workaround isn't required for the RCS, disabling these
* reports has no impact for our driver or the GuC, so we go ahead and
* apply this to all engines for simplicity.
*/
{ XE_RTP_NAME("16021639441"),
XE_RTP_RULES(GRAPHICS_VERSION(2001)),
XE_RTP_ACTIONS(SET(CSFE_CHICKEN1(0),
GHWSP_CSB_REPORT_DIS |
PPHWSP_CSB_AND_TIMESTAMP_REPORT_DIS,
XE_RTP_ACTION_FLAG(ENGINE_BASE)))
},
{ XE_RTP_NAME("14019811474"),
XE_RTP_RULES(GRAPHICS_VERSION(2001),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, WR_REQ_CHAINING_DIS))
},
{ XE_RTP_NAME("14021402888"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(HALF_SLICE_CHICKEN7, CLEAR_OPTIMIZATION_DISABLE))
},
{ XE_RTP_NAME("14021821874"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(TDL_TSL_CHICKEN, STK_ID_RESTRICT))
},
/* Xe2_LPM */
{ XE_RTP_NAME("16021639441"),
XE_RTP_RULES(MEDIA_VERSION(2000)),
XE_RTP_ACTIONS(SET(CSFE_CHICKEN1(0),
GHWSP_CSB_REPORT_DIS |
PPHWSP_CSB_AND_TIMESTAMP_REPORT_DIS,
XE_RTP_ACTION_FLAG(ENGINE_BASE)))
},
/* Xe2_HPM */
{ XE_RTP_NAME("16021639441"),
XE_RTP_RULES(MEDIA_VERSION(1301)),
XE_RTP_ACTIONS(SET(CSFE_CHICKEN1(0),
GHWSP_CSB_REPORT_DIS |
PPHWSP_CSB_AND_TIMESTAMP_REPORT_DIS,
XE_RTP_ACTION_FLAG(ENGINE_BASE)))
},
/* Xe3_LPG */
{ XE_RTP_NAME("14021402888"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(3000, 3001), FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(HALF_SLICE_CHICKEN7, CLEAR_OPTIMIZATION_DISABLE))
},
{ XE_RTP_NAME("18034896535"),
XE_RTP_RULES(GRAPHICS_VERSION(3000), GRAPHICS_STEP(A0, B0),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH))
},
{}
};
static const struct xe_rtp_entry_sr lrc_was[] = {
{ XE_RTP_NAME("1409342910, 14010698770, 14010443199, 1408979724, 1409178076, 1409207793, 1409217633, 1409252684, 1409347922, 1409142259"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1210)),
XE_RTP_ACTIONS(SET(COMMON_SLICE_CHICKEN3,
DISABLE_CPS_AWARE_COLOR_PIPE))
},
{ XE_RTP_NAME("WaDisableGPGPUMidThreadPreemption"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1210)),
XE_RTP_ACTIONS(FIELD_SET(CS_CHICKEN1(RENDER_RING_BASE),
PREEMPT_GPGPU_LEVEL_MASK,
PREEMPT_GPGPU_THREAD_GROUP_LEVEL))
},
{ XE_RTP_NAME("1806527549"),
XE_RTP_RULES(GRAPHICS_VERSION(1200)),
XE_RTP_ACTIONS(SET(HIZ_CHICKEN, HZ_DEPTH_TEST_LE_GE_OPT_DISABLE))
},
{ XE_RTP_NAME("1606376872"),
XE_RTP_RULES(GRAPHICS_VERSION(1200)),
XE_RTP_ACTIONS(SET(COMMON_SLICE_CHICKEN4, DISABLE_TDC_LOAD_BALANCING_CALC))
},
/* DG1 */
{ XE_RTP_NAME("1409044764"),
XE_RTP_RULES(PLATFORM(DG1)),
XE_RTP_ACTIONS(CLR(COMMON_SLICE_CHICKEN3,
DG1_FLOAT_POINT_BLEND_OPT_STRICT_MODE_EN))
},
{ XE_RTP_NAME("22010493298"),
XE_RTP_RULES(PLATFORM(DG1)),
XE_RTP_ACTIONS(SET(HIZ_CHICKEN,
DG1_HZ_READ_SUPPRESSION_OPTIMIZATION_DISABLE))
},
/* DG2 */
{ XE_RTP_NAME("16013271637"),
XE_RTP_RULES(PLATFORM(DG2)),
XE_RTP_ACTIONS(SET(XEHP_SLICE_COMMON_ECO_CHICKEN1,
MSC_MSAA_REODER_BUF_BYPASS_DISABLE))
},
{ XE_RTP_NAME("14014947963"),
XE_RTP_RULES(PLATFORM(DG2)),
XE_RTP_ACTIONS(FIELD_SET(VF_PREEMPTION,
PREEMPTION_VERTEX_COUNT,
0x4000))
},
{ XE_RTP_NAME("18018764978"),
XE_RTP_RULES(PLATFORM(DG2)),
XE_RTP_ACTIONS(SET(XEHP_PSS_MODE2,
SCOREBOARD_STALL_FLUSH_CONTROL))
},
{ XE_RTP_NAME("18019271663"),
XE_RTP_RULES(PLATFORM(DG2)),
XE_RTP_ACTIONS(SET(CACHE_MODE_1, MSAA_OPTIMIZATION_REDUC_DISABLE))
},
{ XE_RTP_NAME("14019877138"),
XE_RTP_RULES(PLATFORM(DG2)),
XE_RTP_ACTIONS(SET(XEHP_PSS_CHICKEN, FD_END_COLLECT))
},
/* PVC */
{ XE_RTP_NAME("16017236439"),
XE_RTP_RULES(PLATFORM(PVC), ENGINE_CLASS(COPY),
FUNC(xe_rtp_match_even_instance)),
XE_RTP_ACTIONS(SET(BCS_SWCTRL(0),
BCS_SWCTRL_DISABLE_256B,
XE_RTP_ACTION_FLAG(ENGINE_BASE))),
},
/* Xe_LPG */
{ XE_RTP_NAME("18019271663"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1274)),
XE_RTP_ACTIONS(SET(CACHE_MODE_1, MSAA_OPTIMIZATION_REDUC_DISABLE))
},
{ XE_RTP_NAME("14019877138"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1274), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(XEHP_PSS_CHICKEN, FD_END_COLLECT))
},
/* Xe2_LPG */
{ XE_RTP_NAME("16020518922"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(FF_MODE,
DIS_TE_AUTOSTRIP |
DIS_MESH_PARTIAL_AUTOSTRIP |
DIS_MESH_AUTOSTRIP),
SET(VFLSKPD,
DIS_PARTIAL_AUTOSTRIP |
DIS_AUTOSTRIP))
},
{ XE_RTP_NAME("14019386621"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(VF_SCRATCHPAD, XE2_VFG_TED_CREDIT_INTERFACE_DISABLE))
},
{ XE_RTP_NAME("14019877138"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(XEHP_PSS_CHICKEN, FD_END_COLLECT))
},
{ XE_RTP_NAME("14020013138"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(WM_CHICKEN3, HIZ_PLANE_COMPRESSION_DIS))
},
{ XE_RTP_NAME("14019988906"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(XEHP_PSS_CHICKEN, FLSH_IGNORES_PSD))
},
{ XE_RTP_NAME("16020183090"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(INSTPM(RENDER_RING_BASE), ENABLE_SEMAPHORE_POLL_BIT))
},
{ XE_RTP_NAME("18033852989"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2001, 2004), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(COMMON_SLICE_CHICKEN1, DISABLE_BOTTOM_CLIP_RECTANGLE_TEST))
},
{ XE_RTP_NAME("14021567978"),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2001, XE_RTP_END_VERSION_UNDEFINED),
ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(CHICKEN_RASTER_2, TBIMR_FAST_CLIP))
},
{ XE_RTP_NAME("14020756599"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER), OR,
MEDIA_VERSION_ANY_GT(2000), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(WM_CHICKEN3, HIZ_PLANE_COMPRESSION_DIS))
},
{ XE_RTP_NAME("14021490052"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(FF_MODE,
DIS_MESH_PARTIAL_AUTOSTRIP |
DIS_MESH_AUTOSTRIP),
SET(VFLSKPD,
DIS_PARTIAL_AUTOSTRIP |
DIS_AUTOSTRIP))
},
{ XE_RTP_NAME("15016589081"),
XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(CHICKEN_RASTER_1, DIS_CLIP_NEGATIVE_BOUNDING_BOX))
},
/* Xe2_HPG */
{ XE_RTP_NAME("15010599737"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(CHICKEN_RASTER_1, DIS_SF_ROUND_NEAREST_EVEN))
},
{ XE_RTP_NAME("14019386621"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(VF_SCRATCHPAD, XE2_VFG_TED_CREDIT_INTERFACE_DISABLE))
},
{ XE_RTP_NAME("14020756599"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(WM_CHICKEN3, HIZ_PLANE_COMPRESSION_DIS))
},
{ XE_RTP_NAME("14021490052"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(FF_MODE,
DIS_MESH_PARTIAL_AUTOSTRIP |
DIS_MESH_AUTOSTRIP),
SET(VFLSKPD,
DIS_PARTIAL_AUTOSTRIP |
DIS_AUTOSTRIP))
},
{ XE_RTP_NAME("15016589081"),
XE_RTP_RULES(GRAPHICS_VERSION(2001), ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(CHICKEN_RASTER_1, DIS_CLIP_NEGATIVE_BOUNDING_BOX))
},
/* Xe3_LPG */
{ XE_RTP_NAME("14021490052"),
XE_RTP_RULES(GRAPHICS_VERSION(3000), GRAPHICS_STEP(A0, B0),
ENGINE_CLASS(RENDER)),
XE_RTP_ACTIONS(SET(FF_MODE,
DIS_MESH_PARTIAL_AUTOSTRIP |
DIS_MESH_AUTOSTRIP),
SET(VFLSKPD,
DIS_PARTIAL_AUTOSTRIP |
DIS_AUTOSTRIP))
},
{}
};
static __maybe_unused const struct xe_rtp_entry oob_was[] = {
#include <generated/xe_wa_oob.c>
{}
};
static_assert(ARRAY_SIZE(oob_was) - 1 == _XE_WA_OOB_COUNT);
__diag_pop();
/**
* xe_wa_process_oob - process OOB workaround table
* @gt: GT instance to process workarounds for
*
* Process OOB workaround table for this platform, marking in @gt the
* workarounds that are active.
*/
void xe_wa_process_oob(struct xe_gt *gt)
{
struct xe_rtp_process_ctx ctx = XE_RTP_PROCESS_CTX_INITIALIZER(gt);
xe_rtp_process_ctx_enable_active_tracking(&ctx, gt->wa_active.oob,
ARRAY_SIZE(oob_was));
gt->wa_active.oob_initialized = true;
xe_rtp_process(&ctx, oob_was);
}
/**
* xe_wa_process_gt - process GT workaround table
* @gt: GT instance to process workarounds for
*
* Process GT workaround table for this platform, saving in @gt all the
* workarounds that need to be applied at the GT level.
*/
void xe_wa_process_gt(struct xe_gt *gt)
{
struct xe_rtp_process_ctx ctx = XE_RTP_PROCESS_CTX_INITIALIZER(gt);
xe_rtp_process_ctx_enable_active_tracking(&ctx, gt->wa_active.gt,
ARRAY_SIZE(gt_was));
xe_rtp_process_to_sr(&ctx, gt_was, &gt->reg_sr);
}
EXPORT_SYMBOL_IF_KUNIT(xe_wa_process_gt);
/**
* xe_wa_process_engine - process engine workaround table
* @hwe: engine instance to process workarounds for
*
* Process engine workaround table for this platform, saving in @hwe all the
* workarounds that need to be applied at the engine level that match this
* engine.
*/
void xe_wa_process_engine(struct xe_hw_engine *hwe)
{
struct xe_rtp_process_ctx ctx = XE_RTP_PROCESS_CTX_INITIALIZER(hwe);
xe_rtp_process_ctx_enable_active_tracking(&ctx, hwe->gt->wa_active.engine,
ARRAY_SIZE(engine_was));
xe_rtp_process_to_sr(&ctx, engine_was, &hwe->reg_sr);
}
/**
* xe_wa_process_lrc - process context workaround table
* @hwe: engine instance to process workarounds for
*
* Process context workaround table for this platform, saving in @hwe all the
* workarounds that need to be applied on context restore. These are workarounds
* touching registers that are part of the HW context image.
*/
void xe_wa_process_lrc(struct xe_hw_engine *hwe)
{
struct xe_rtp_process_ctx ctx = XE_RTP_PROCESS_CTX_INITIALIZER(hwe);
xe_rtp_process_ctx_enable_active_tracking(&ctx, hwe->gt->wa_active.lrc,
ARRAY_SIZE(lrc_was));
xe_rtp_process_to_sr(&ctx, lrc_was, &hwe->reg_lrc);
}
/**
* xe_wa_init - initialize gt with workaround bookkeeping
* @gt: GT instance to initialize
*
* Returns 0 for success, negative error code otherwise.
*/
int xe_wa_init(struct xe_gt *gt)
{
struct xe_device *xe = gt_to_xe(gt);
size_t n_oob, n_lrc, n_engine, n_gt, total;
unsigned long *p;
n_gt = BITS_TO_LONGS(ARRAY_SIZE(gt_was));
n_engine = BITS_TO_LONGS(ARRAY_SIZE(engine_was));
n_lrc = BITS_TO_LONGS(ARRAY_SIZE(lrc_was));
n_oob = BITS_TO_LONGS(ARRAY_SIZE(oob_was));
total = n_gt + n_engine + n_lrc + n_oob;
p = drmm_kzalloc(&xe->drm, sizeof(*p) * total, GFP_KERNEL);
if (!p)
return -ENOMEM;
gt->wa_active.gt = p;
p += n_gt;
gt->wa_active.engine = p;
p += n_engine;
gt->wa_active.lrc = p;
p += n_lrc;
gt->wa_active.oob = p;
return 0;
}
ALLOW_ERROR_INJECTION(xe_wa_init, ERRNO); /* See xe_pci_probe() */
void xe_wa_dump(struct xe_gt *gt, struct drm_printer *p)
{
size_t idx;
drm_printf(p, "GT Workarounds\n");
for_each_set_bit(idx, gt->wa_active.gt, ARRAY_SIZE(gt_was))
drm_printf_indent(p, 1, "%s\n", gt_was[idx].name);
drm_printf(p, "\nEngine Workarounds\n");
for_each_set_bit(idx, gt->wa_active.engine, ARRAY_SIZE(engine_was))
drm_printf_indent(p, 1, "%s\n", engine_was[idx].name);
drm_printf(p, "\nLRC Workarounds\n");
for_each_set_bit(idx, gt->wa_active.lrc, ARRAY_SIZE(lrc_was))
drm_printf_indent(p, 1, "%s\n", lrc_was[idx].name);
drm_printf(p, "\nOOB Workarounds\n");
for_each_set_bit(idx, gt->wa_active.oob, ARRAY_SIZE(oob_was))
if (oob_was[idx].name)
drm_printf_indent(p, 1, "%s\n", oob_was[idx].name);
}
/*
* Apply tile (non-GT, non-display) workarounds. Think very carefully before
* adding anything to this function; most workarounds should be implemented
* elsewhere. The programming here is primarily for sgunit/soc workarounds,
* which are relatively rare. Since the registers these workarounds target are
* outside the GT, they should only need to be applied once at device
* probe/resume; they will not lose their values on any kind of GT or engine
* reset.
*
* TODO: We may want to move this over to xe_rtp in the future once we have
* enough workarounds to justify the work.
*/
void xe_wa_apply_tile_workarounds(struct xe_tile *tile)
{
struct xe_mmio *mmio = &tile->mmio;
if (IS_SRIOV_VF(tile->xe))
return;
if (XE_WA(tile->primary_gt, 22010954014))
xe_mmio_rmw32(mmio, XEHP_CLOCK_GATE_DIS, 0, SGSI_SIDECLK_DIS);
}
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