drm/xe: Merge 16021540221 and 18034896535 WAs

In order to detect duplicate implementations for the same workaround,
early in the implementation of RTP it was decided to error out even if
the values set are exactly the same. With the introduction of 18034896535
in commit 74671d2 ("drm/xe/xe2: Add workaround 18034896535"), LNL
stepping with graphics stepping A1 now gives the following error on
module load:

	xe 0000:00:02.0: [drm] *ERROR* GT0: [GT OTHER] \
	discarding save-restore reg e48c (clear: 00000200, set: 00000200,\
	masked: yes, mcr: yes): ret=-22

RTP may be improved in the future, but for now simply join the entries
like done with e.g. "1607297627, 1607030317, 1607186500".

Fixes: 74671d2 ("drm/xe/xe2: Add workaround 18034896535")
Cc: Bommu Krishnaiah <[email protected]>
Cc: Tejas Upadhyay <[email protected]>
Cc: Matt Roper <[email protected]>
Reviewed-by: Himal Prasad Ghimiray <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Lucas De Marchi <[email protected]>
(cherry picked from commit 4caf410)
Signed-off-by: Thomas Hellström <[email protected]>

Author: lucasdemarchi

drivers/gpu/drm/xe/xe_wa.c

@@ -449,12 +449,7 @@ static const struct xe_rtp_entry_sr engine_was[] = {
 	  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("16021540221"),
-	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
-		       FUNC(xe_rtp_match_first_render_or_compute)),
-	  XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH))
-	},
-	{ XE_RTP_NAME("18034896535"),
+	{ 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))