From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198
---
kernel/arch/powerpc/include/asm/lppaca.h | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/kernel/arch/powerpc/include/asm/lppaca.h b/kernel/arch/powerpc/include/asm/lppaca.h
index c390ec3..1412e64 100644
--- a/kernel/arch/powerpc/include/asm/lppaca.h
+++ b/kernel/arch/powerpc/include/asm/lppaca.h
@@ -45,6 +45,7 @@
#include <asm/types.h>
#include <asm/mmu.h>
#include <asm/firmware.h>
+#include <asm/paca.h>
/*
* The lppaca is the "virtual processor area" registered with the hypervisor,
@@ -123,13 +124,23 @@
*/
#define LPPACA_OLD_SHARED_PROC 2
-static inline bool lppaca_shared_proc(struct lppaca *l)
+#ifdef CONFIG_PPC_PSERIES
+/*
+ * All CPUs should have the same shared proc value, so directly access the PACA
+ * to avoid false positives from DEBUG_PREEMPT.
+ */
+static inline bool lppaca_shared_proc(void)
{
+ struct lppaca *l = local_paca->lppaca_ptr;
+
if (!firmware_has_feature(FW_FEATURE_SPLPAR))
return false;
return !!(l->__old_status & LPPACA_OLD_SHARED_PROC);
}
+#define get_lppaca() (get_paca()->lppaca_ptr)
+#endif
+
/*
* SLB shadow buffer structure as defined in the PAPR. The save_area
* contains adjacent ESID and VSID pairs for each shadowed SLB. The
--
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