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With the introduction of 18034896535 > in commit 74671d23ca18 ("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: 74671d23ca18 ("drm/xe/xe2: Add workaround 18034896535") > Cc: Bommu Krishnaiah > Cc: Tejas Upadhyay > Cc: Matt Roper > Signed-off-by: Lucas De Marchi > --- > drivers/gpu/drm/xe/xe_wa.c | 7 +------ > 1 file changed, 1 insertion(+), 6 deletions(-) > > diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c > index 9d9b7fa7a8f0..db7c7c7875c5 100644 > --- a/drivers/gpu/drm/xe/xe_wa.c > +++ b/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), w/a 16021540221 is applicable to only Steppings A0 to B0 (B0 not inclusive). With your change, I think the w/a will be applied to all the steppings. Wouldn't this be incorrect? Please provide some guidance. > FUNC(xe_rtp_match_first_render_or_compute)), > XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH)) -- -shekhar