From e3affc7cd9b48b03d1235168d50c313e2389a2d7 Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Fri, 30 Jun 2023 13:35:09 -0700
Subject: [PATCH] drm/i915/gt: Also check set bits in clr_set()
When checking if the workarounds were applied successfully, the
read-back mask should also contain the bits being set: it's possible
that in a call to wa_write_clr_set(), the cleared bits are not a
superset of the set bits.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230630203509.1635216-8-lucas.demarchi@intel.com
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index a6f3f160ebe2..b177c588698b 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -241,13 +241,13 @@ static void wa_mcr_add(struct i915_wa_list *wal, i915_mcr_reg_t reg,
static void
wa_write_clr_set(struct i915_wa_list *wal, i915_reg_t reg, u32 clear, u32 set)
{
- wa_add(wal, reg, clear, set, clear, false);
+ wa_add(wal, reg, clear, set, clear | set, false);
}
static void
wa_mcr_write_clr_set(struct i915_wa_list *wal, i915_mcr_reg_t reg, u32 clear, u32 set)
{
- wa_mcr_add(wal, reg, clear, set, clear, false);
+ wa_mcr_add(wal, reg, clear, set, clear | set, false);
}
static void