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Date: Sat, 12 Jul 2008 01:01:20 -0700
From: Yinghai Lu <yhlu.kernel@...il.com>
To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>,
Suresh Siddha <suresh.b.siddha@...el.com>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: make 64bit have get_apic_id
and read_apic_id become macro
GET_APIC_ID(apic_read(APIC_ID))
Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>
---
arch/x86/kernel/genapic_flat_64.c | 26 +++++++++++++++++++++++---
arch/x86/kernel/genx2apic_cluster.c | 20 +++++++++++++++++++-
arch/x86/kernel/genx2apic_phys.c | 20 +++++++++++++++++++-
arch/x86/kernel/genx2apic_uv_x.c | 23 ++++++++++++++++++++---
include/asm-x86/genapic_64.h | 4 +++-
include/asm-x86/mach-default/mach_apic.h | 2 +-
include/asm-x86/mach-default/mach_apicdef.h | 6 +++---
7 files changed, 88 insertions(+), 13 deletions(-)
Index: linux-2.6/arch/x86/kernel/genapic_flat_64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/genapic_flat_64.c
+++ linux-2.6/arch/x86/kernel/genapic_flat_64.c
@@ -97,11 +97,27 @@ static void flat_send_IPI_all(int vector
__send_IPI_shortcut(APIC_DEST_ALLINC, vector, APIC_DEST_LOGICAL);
}
+static unsigned int get_apic_id(unsigned long x)
+{
+ unsigned int id;
+
+ id = (((x)>>24) & 0xFFu);
+ return id;
+}
+
+static unsigned long set_apic_id(unsigned int id)
+{
+ unsigned long x;
+
+ x = ((id & 0xFFu)<<24);
+ return x;
+}
+
static unsigned int read_xapic_id(void)
{
unsigned int id;
- id = GET_APIC_ID(apic_read(APIC_ID));
+ id = get_apic_id(apic_read(APIC_ID));
return id;
}
@@ -134,7 +150,9 @@ struct genapic apic_flat = {
.send_IPI_self = apic_send_IPI_self,
.cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
.phys_pkg_id = phys_pkg_id,
- .read_apic_id = read_xapic_id,
+ .get_apic_id = get_apic_id,
+ .set_apic_id = set_apic_id,
+ .apic_id_mask = (0xFFu<<24),
};
/*
@@ -200,5 +218,7 @@ struct genapic apic_physflat = {
.send_IPI_self = apic_send_IPI_self,
.cpu_mask_to_apicid = physflat_cpu_mask_to_apicid,
.phys_pkg_id = phys_pkg_id,
- .read_apic_id = read_xapic_id,
+ .get_apic_id = get_apic_id,
+ .set_apic_id = set_apic_id,
+ .apic_id_mask = (0xFFu<<24),
};
Index: linux-2.6/arch/x86/kernel/genx2apic_cluster.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/genx2apic_cluster.c
+++ linux-2.6/arch/x86/kernel/genx2apic_cluster.c
@@ -94,6 +94,22 @@ static unsigned int x2apic_cpu_mask_to_a
return BAD_APICID;
}
+static unsigned int get_apic_id(unsigned long x)
+{
+ unsigned int id;
+
+ id = x;
+ return id;
+}
+
+static unsigned long set_apic_id(unsigned int id)
+{
+ unsigned long x;
+
+ x = id;
+ return x;
+}
+
static unsigned int x2apic_read_id(void)
{
return apic_read(APIC_ID);
@@ -131,5 +147,7 @@ struct genapic apic_x2apic_cluster = {
.send_IPI_self = x2apic_send_IPI_self,
.cpu_mask_to_apicid = x2apic_cpu_mask_to_apicid,
.phys_pkg_id = phys_pkg_id,
- .read_apic_id = x2apic_read_id,
+ .get_apic_id = get_apic_id,
+ .set_apic_id = set_apic_id,
+ .apic_id_mask = (0xFFFFFFFFu),
};
Index: linux-2.6/arch/x86/kernel/genx2apic_phys.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/genx2apic_phys.c
+++ linux-2.6/arch/x86/kernel/genx2apic_phys.c
@@ -84,6 +84,22 @@ static unsigned int x2apic_cpu_mask_to_a
return BAD_APICID;
}
+static unsigned int get_apic_id(unsigned long x)
+{
+ unsigned int id;
+
+ id = x;
+ return id;
+}
+
+static unsigned long set_apic_id(unsigned int id)
+{
+ unsigned long x;
+
+ x = id;
+ return x;
+}
+
static unsigned int x2apic_read_id(void)
{
return apic_read(APIC_ID);
@@ -118,5 +134,7 @@ struct genapic apic_x2apic_phys = {
.send_IPI_self = x2apic_send_IPI_self,
.cpu_mask_to_apicid = x2apic_cpu_mask_to_apicid,
.phys_pkg_id = phys_pkg_id,
- .read_apic_id = x2apic_read_id,
+ .get_apic_id = get_apic_id,
+ .set_apic_id = set_apic_id,
+ .apic_id_mask = (0xFFFFFFFFu),
};
Index: linux-2.6/arch/x86/kernel/genx2apic_uv_x.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/genx2apic_uv_x.c
+++ linux-2.6/arch/x86/kernel/genx2apic_uv_x.c
@@ -139,16 +139,31 @@ static unsigned int uv_cpu_mask_to_apici
return BAD_APICID;
}
-static unsigned int uv_read_apic_id(void)
+static unsigned int get_apic_id(unsigned long x)
{
unsigned int id;
WARN_ON(preemptible() && num_online_cpus() > 1);
- id = apic_read(APIC_ID) | __get_cpu_var(x2apic_extra_bits);
+ id = x | __get_cpu_var(x2apic_extra_bits);
return id;
}
+static long set_apic_id(unsigned int id)
+{
+ unsigned long x;
+
+ /* maskout x2apic_extra_bits ? */
+ x = id;
+ return x;
+}
+
+static unsigned int uv_read_apic_id(void)
+{
+
+ return get_apic_id(apic_read(APIC_ID));
+}
+
static unsigned int phys_pkg_id(int index_msb)
{
return uv_read_apic_id() >> index_msb;
@@ -175,7 +190,9 @@ struct genapic apic_x2apic_uv_x = {
/* ZZZ.send_IPI_self = uv_send_IPI_self, */
.cpu_mask_to_apicid = uv_cpu_mask_to_apicid,
.phys_pkg_id = phys_pkg_id, /* Fixme ZZZ */
- .read_apic_id = uv_read_apic_id,
+ .get_apic_id = get_apic_id,
+ .set_apic_id = set_apic_id,
+ .apic_id_mask = (0xFFFFFFFFu),
};
static __cpuinit void set_x2apic_extra_bits(int pnode)
Index: linux-2.6/include/asm-x86/genapic_64.h
===================================================================
--- linux-2.6.orig/include/asm-x86/genapic_64.h
+++ linux-2.6/include/asm-x86/genapic_64.h
@@ -28,7 +28,9 @@ struct genapic {
/* */
unsigned int (*cpu_mask_to_apicid)(cpumask_t cpumask);
unsigned int (*phys_pkg_id)(int index_msb);
- unsigned int (*read_apic_id)(void);
+ unsigned int (*get_apic_id)(unsigned long x);
+ unsigned long (*set_apic_id)(unsigned int id);
+ unsigned long apic_id_mask;
};
extern struct genapic *genapic;
Index: linux-2.6/include/asm-x86/mach-default/mach_apic.h
===================================================================
--- linux-2.6.orig/include/asm-x86/mach-default/mach_apic.h
+++ linux-2.6/include/asm-x86/mach-default/mach_apic.h
@@ -30,7 +30,7 @@ static inline cpumask_t target_cpus(void
#define cpu_mask_to_apicid (genapic->cpu_mask_to_apicid)
#define phys_pkg_id (genapic->phys_pkg_id)
#define vector_allocation_domain (genapic->vector_allocation_domain)
-#define read_apic_id (genapic->read_apic_id)
+#define read_apic_id() (GET_APIC_ID(apic_read(APIC_ID)))
#define send_IPI_self (genapic->send_IPI_self)
extern void setup_apic_routing(void);
#else
Index: linux-2.6/include/asm-x86/mach-default/mach_apicdef.h
===================================================================
--- linux-2.6.orig/include/asm-x86/mach-default/mach_apicdef.h
+++ linux-2.6/include/asm-x86/mach-default/mach_apicdef.h
@@ -4,9 +4,9 @@
#include <asm/apic.h>
#ifdef CONFIG_X86_64
-#define APIC_ID_MASK (0xFFu<<24)
-#define GET_APIC_ID(x) (((x)>>24) & 0xFFu)
-#define SET_APIC_ID(x) (((x)<<24))
+#define APIC_ID_MASK (genapic->apic_id_mask)
+#define GET_APIC_ID(x) (genapic->get_apic_id(x))
+#define SET_APIC_ID(x) (genapic->set_apic_id(x))
#else
#define APIC_ID_MASK (0xF<<24)
static inline unsigned get_apic_id(unsigned long x)
--
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