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* [PATCH] drm/xe: put COMMON_SLICE_CHICKEN3 on the allowlist for UMD
@ 2026-01-05 15:02 Lionel Landwerlin
  2026-01-05 15:06 ` ✗ CI.checkpatch: warning for " Patchwork
                   ` (4 more replies)
  0 siblings, 5 replies; 9+ messages in thread
From: Lionel Landwerlin @ 2026-01-05 15:02 UTC (permalink / raw)
  To: intel-xe; +Cc: Lionel Landwerlin

Similar to i915's commit cebc13de7e704b1355bea208a9f9cdb042c74588
("drm/i915: Whitelist COMMON_SLICE_CHICKEN3 for UMD access")

A recommended tuning setting for both gen12 and Xe_HP platforms
requires that we grant userspace r/w access to the
COMMON_SLICE_CHICKEN3 register.

Bspec: 73993, 73994, 31870, 68331
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
---
 drivers/gpu/drm/xe/xe_reg_whitelist.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_reg_whitelist.c b/drivers/gpu/drm/xe/xe_reg_whitelist.c
index 1391cb6ec9c62..4dcbc42574bf5 100644
--- a/drivers/gpu/drm/xe/xe_reg_whitelist.c
+++ b/drivers/gpu/drm/xe/xe_reg_whitelist.c
@@ -45,6 +45,11 @@ static const struct xe_rtp_entry_sr register_whitelist[] = {
 	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1210), ENGINE_CLASS(RENDER)),
 	  XE_RTP_ACTIONS(WHITELIST(COMMON_SLICE_CHICKEN1, 0))
 	},
+	{ XE_RTP_NAME("allow_common_slice_chicken3"),
+	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, XE_RTP_END_VERSION_UNDEFINED),
+                       ENGINE_CLASS(RENDER)),
+	  XE_RTP_ACTIONS(WHITELIST(COMMON_SLICE_CHICKEN3, 0))
+	},
 	{ XE_RTP_NAME("1806527549"),
 	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, 1210), ENGINE_CLASS(RENDER)),
 	  XE_RTP_ACTIONS(WHITELIST(HIZ_CHICKEN, 0))
-- 
2.43.0


^ permalink raw reply related	[flat|nested] 9+ messages in thread

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Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-01-05 15:02 [PATCH] drm/xe: put COMMON_SLICE_CHICKEN3 on the allowlist for UMD Lionel Landwerlin
2026-01-05 15:06 ` ✗ CI.checkpatch: warning for " Patchwork
2026-01-05 15:07 ` ✓ CI.KUnit: success " Patchwork
2026-01-05 15:51 ` ✓ Xe.CI.BAT: " Patchwork
2026-01-05 18:54 ` [PATCH] " Gustavo Sousa
2026-01-05 20:04   ` Lionel Landwerlin
2026-01-05 20:24     ` Matt Roper
2026-01-05 20:53       ` Lionel Landwerlin
2026-01-05 19:01 ` ✗ Xe.CI.Full: failure for " Patchwork

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