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drm/xe: Implement recent spec updates to Wa_16025250150 

The hardware teams noticed that the originally documented workaround
steps for Wa_16025250150 may not be sufficient to fully avoid a hardware
issue.  The workaround documentation has been augmented to suggest
programming one additional register; make the corresponding change in
the driver.

Fixes: 7654d51f1f ("drm/xe/xe2hpg: Add Wa_16025250150")
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Link: https://patch.msgid.link/20260319-wa_16025250150_part2-v1-1-46b1de1a31b2@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit a31566762d4075646a8a2214586158b681e94305)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Matt Roper 2026-03-19 15:30:34 -07:00 committed by Rodrigo Vivi
parent 87997b6c65
commit 56781a4597
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GPG Key ID: FA625F640EEB13CA
2 changed files with 3 additions and 1 deletions
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1
drivers/gpu/drm/xe/regs/xe_gt_regs.h
View File

@ -553,6 +553,7 @@
#define ENABLE_SMP_LD_RENDER_SURFACE_CONTROL REG_BIT(44 - 32)
#define FORCE_SLM_FENCE_SCOPE_TO_TILE REG_BIT(42 - 32)
#define FORCE_UGM_FENCE_SCOPE_TO_TILE REG_BIT(41 - 32)
#define L3_128B_256B_WRT_DIS REG_BIT(40 - 32)
#define MAXREQS_PER_BANK REG_GENMASK(39 - 32, 37 - 32)
#define DISABLE_128B_EVICTION_COMMAND_UDW REG_BIT(36 - 32)

3
drivers/gpu/drm/xe/xe_wa.c
View File

@ -247,7 +247,8 @@ static const struct xe_rtp_entry_sr gt_was[] = {
LSN_DIM_Z_WGT_MASK,
LSN_LNI_WGT(1) | LSN_LNE_WGT(1) |
LSN_DIM_X_WGT(1) | LSN_DIM_Y_WGT(1) |
LSN_DIM_Z_WGT(1)))
LSN_DIM_Z_WGT(1)),
SET(LSC_CHICKEN_BIT_0_UDW, L3_128B_256B_WRT_DIS))
},
/* Xe2_HPM */