From: Imre Kaloz <kaloz@kernel.org>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 4/5] MIPS: tlbex: Follow the boot-time R10000 LL/SC choice
Date: Mon, 26 Oct 2026 14:41:44 +0100 [thread overview]
Message-ID: <20261026134147.15988-5-kaloz@kernel.org> (raw)
In-Reply-To: <20261026134147.15988-1-kaloz@kernel.org>
The TLB handlers are generated after the boot-time R10000 LL/SC
choice. Emit the branch-likely in their ll/sc loop only when the
workaround is in use.
Signed-off-by: Imre Kaloz <kaloz@kernel.org>
---
arch/mips/mm/tlbex.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 69ea54bdc0c3..32ce99dc90a0 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -35,6 +35,7 @@
#include <asm/mipsregs.h>
#include <asm/mmu_context.h>
#include <asm/regdef.h>
+#include <asm/r10k-llsc.h>
#include <asm/uasm.h>
#include <asm/setup.h>
#include <asm/tlbex.h>
@@ -95,7 +96,7 @@ static inline int __maybe_unused bcm1250_m3_war(void)
static inline int __maybe_unused r10000_llsc_war(void)
{
- return IS_ENABLED(CONFIG_WAR_R10000_LLSC);
+ return r10k_llsc_war;
}
static int use_bbit_insns(void)
--
2.47.3
next prev parent reply other threads:[~2026-10-26 13:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-26 13:41 [PATCH 0/5] MIPS: Select the R10000 LL/SC workaround at boot Imre Kaloz
2026-10-26 13:41 ` [PATCH 1/5] MIPS: Use SC_BEQZ in the futex and sysmips ll/sc loops Imre Kaloz
2026-10-26 13:41 ` [PATCH 2/5] MIPS: Select the R10000 LL/SC workaround at boot Imre Kaloz
2026-10-26 13:41 ` [PATCH 3/5] MIPS: SGI-IP27: Report all CPUs to the R10000 LL/SC workaround Imre Kaloz
2026-10-26 13:41 ` Imre Kaloz [this message]
2026-10-26 13:41 ` [PATCH 5/5] bpf, mips: Follow the boot-time R10000 LL/SC choice Imre Kaloz
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