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authorJames Morse <james.morse@arm.com>2019-01-29 18:48:57 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-02-07 23:10:46 +0100
commitb972d2eaf0c7021579755eec6b2b79e0f5bc7930 (patch)
treeb0baf632e9a4ba588a5ce32ce517aa180205c8c0
parentd9f608dc156487b55cb17c2ec591b06e53a6de64 (diff)
downloadlinux-b972d2eaf0c7021579755eec6b2b79e0f5bc7930.tar.bz2
ACPI / APEI: Use separate fixmap pages for arm64 NMI-like notifications
Now that ghes notification helpers provide the fixmap slots and take the lock themselves, multiple NMI-like notifications can be used on arm64. These should be named after their notification method as they can't all be called 'NMI'. x86's NOTIFY_NMI already is, change the SEA fixmap entry to be called FIX_APEI_GHES_SEA. Future patches can add support for FIX_APEI_GHES_SEI and FIX_APEI_GHES_SDEI_{NORMAL,CRITICAL}. Because all of ghes.c builds on both architectures, provide a constant for each fixmap entry that the architecture will never use. Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--arch/arm64/include/asm/fixmap.h2
-rw-r--r--drivers/acpi/apei/ghes.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h
index ec1e6d6fa14c..966dd4bb23f2 100644
--- a/arch/arm64/include/asm/fixmap.h
+++ b/arch/arm64/include/asm/fixmap.h
@@ -55,7 +55,7 @@ enum fixed_addresses {
#ifdef CONFIG_ACPI_APEI_GHES
/* Used for GHES mapping from assorted contexts */
FIX_APEI_GHES_IRQ,
- FIX_APEI_GHES_NMI,
+ FIX_APEI_GHES_SEA,
#endif /* CONFIG_ACPI_APEI_GHES */
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index eb5bf2ced1fb..99707d565dcc 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -957,7 +957,7 @@ int ghes_notify_sea(void)
int rv;
raw_spin_lock(&ghes_notify_lock_sea);
- rv = ghes_in_nmi_spool_from_list(&ghes_sea, FIX_APEI_GHES_NMI);
+ rv = ghes_in_nmi_spool_from_list(&ghes_sea, FIX_APEI_GHES_SEA);
raw_spin_unlock(&ghes_notify_lock_sea);
return rv;