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 3/5] MIPS: SGI-IP27: Report all CPUs to the R10000 LL/SC workaround
Date: Mon, 26 Oct 2026 14:41:43 +0100 [thread overview]
Message-ID: <20261026134147.15988-4-kaloz@kernel.org> (raw)
In-Reply-To: <20261026134147.15988-1-kaloz@kernel.org>
Pass the PRId of every enabled CPU in KLCONFIG to r10k_llsc_note_cpu(),
so that an affected CPU on any node keeps the workaround.
Signed-off-by: Imre Kaloz <kaloz@kernel.org>
---
arch/mips/sgi-ip27/ip27-smp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index 62733e049570..6a5f5903a443 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -15,6 +15,7 @@
#include <asm/page.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
+#include <asm/r10k-llsc.h>
#include <asm/sn/agent.h>
#include <asm/sn/arch.h>
#include <asm/sn/gda.h>
@@ -49,6 +50,7 @@ static int node_scan_cpus(nasid_t nasid, int highest)
cputoslice(cpus_found) = acpu->cpu_info.physid;
sn_cpu_info[cpus_found].p_speed =
acpu->cpu_speed;
+ r10k_llsc_note_cpu(acpu->cpu_prid);
cpus_found++;
}
acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu,
--
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 ` Imre Kaloz [this message]
2026-10-26 13:41 ` [PATCH 4/5] MIPS: tlbex: Follow the boot-time R10000 LL/SC choice Imre Kaloz
2026-10-26 13:41 ` [PATCH 5/5] bpf, mips: " Imre Kaloz
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