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Date: Thu, 13 Dec 2007 00:01:36 -0200
From: Glauber de Oliveira Costa <gcosta@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: akpm@...ux-foundation.org, glommer@...il.com, tglx@...utronix.de,
mingo@...e.hu, ehabkost@...hat.com, jeremy@...p.org,
avi@...ranet.com, anthony@...emonkey.ws,
virtualization@...ts.linux-foundation.org, rusty@...tcorp.com.au,
ak@...e.de, chrisw@...s-sol.org, rostedt@...dmis.org,
hpa@...or.com, zach@...are.com, roland@...hat.com,
Glauber de Oliveira Costa <gcosta@...hat.com>
Subject: [PATCH 03/19] change gdt acessor macro name
This patch changes the name of x86_64 macro used to access the per-cpu
gdt. It is now equal to the i386 version, which will allow code to be shared.
Signed-off-by: Glauber de Oliveira Costa <gcosta@...hat.com>
---
arch/x86/kernel/setup64.c | 2 +-
arch/x86/kernel/suspend_64.c | 2 +-
arch/x86/kernel/vsyscall_64.c | 2 +-
include/asm-x86/desc_64.h | 10 +++++-----
4 files changed, 8 insertions(+), 8 deletions(-)
Index: linux-2.6-x86/arch/x86/kernel/setup64.c
===================================================================
--- linux-2.6-x86.orig/arch/x86/kernel/setup64.c
+++ linux-2.6-x86/arch/x86/kernel/setup64.c
@@ -228,7 +228,7 @@ void __cpuinit cpu_init (void)
* and set up the GDT descriptor:
*/
if (cpu)
- memcpy(cpu_gdt(cpu), cpu_gdt_table, GDT_SIZE);
+ memcpy(get_cpu_gdt_table(cpu), cpu_gdt_table, GDT_SIZE);
cpu_gdt_descr[cpu].size = GDT_SIZE;
load_gdt((const struct desc_ptr *)&cpu_gdt_descr[cpu]);
Index: linux-2.6-x86/arch/x86/kernel/suspend_64.c
===================================================================
--- linux-2.6-x86.orig/arch/x86/kernel/suspend_64.c
+++ linux-2.6-x86/arch/x86/kernel/suspend_64.c
@@ -118,7 +118,7 @@ void fix_processor_context(void)
set_tss_desc(cpu,t); /* This just modifies memory; should not be necessary. But... This is necessary, because 386 hardware has concept of busy TSS or some similar stupidity. */
- cpu_gdt(cpu)[GDT_ENTRY_TSS].type = 9;
+ get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9;
syscall_init(); /* This sets MSR_*STAR and related */
load_TR_desc(); /* This does ltr */
Index: linux-2.6-x86/arch/x86/kernel/vsyscall_64.c
===================================================================
--- linux-2.6-x86.orig/arch/x86/kernel/vsyscall_64.c
+++ linux-2.6-x86/arch/x86/kernel/vsyscall_64.c
@@ -297,7 +297,7 @@ static void __cpuinit vsyscall_set_cpu(i
/* Store cpu number in limit so that it can be loaded quickly
in user space in vgetcpu.
12 bits for the CPU and 8 bits for the node. */
- d = (unsigned long *)(cpu_gdt(cpu) + GDT_ENTRY_PER_CPU);
+ d = (unsigned long *)(get_cpu_gdt_table(cpu) + GDT_ENTRY_PER_CPU);
*d = 0x0f40000000000ULL;
*d |= cpu;
*d |= (node & 0xf) << 12;
Index: linux-2.6-x86/include/asm-x86/desc_64.h
===================================================================
--- linux-2.6-x86.orig/include/asm-x86/desc_64.h
+++ linux-2.6-x86/include/asm-x86/desc_64.h
@@ -48,7 +48,7 @@ static inline void write_ldt_entry(struc
}
/* the cpu gdt accessor */
-#define cpu_gdt(_cpu) ((struct desc_struct *)cpu_gdt_descr[_cpu].address)
+#define get_cpu_gdt_table(x) ((struct desc_struct *)cpu_gdt_descr[x].address)
static inline void load_gdt(const struct desc_ptr *ptr)
{
@@ -141,15 +141,15 @@ static inline void set_tss_desc(unsigned
* -1? seg base+limit should be pointing to the address of the
* last valid byte
*/
- set_tssldt_descriptor(&cpu_gdt(cpu)[GDT_ENTRY_TSS],
+ set_tssldt_descriptor(&get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS],
(unsigned long)addr, DESC_TSS,
IO_BITMAP_OFFSET + IO_BITMAP_BYTES + sizeof(unsigned long) - 1);
}
static inline void set_ldt_desc(unsigned cpu, void *addr, int size)
{
- set_tssldt_descriptor(&cpu_gdt(cpu)[GDT_ENTRY_LDT], (unsigned long)addr,
- DESC_LDT, size * 8 - 1);
+ set_tssldt_descriptor(&get_cpu_gdt_table(cpu)[GDT_ENTRY_LDT],
+ (unsigned long)addr, DESC_LDT, size * 8 - 1);
}
#define LDT_entry_a(info) \
@@ -183,7 +183,7 @@ static inline void set_ldt_desc(unsigned
static inline void load_TLS(struct thread_struct *t, unsigned int cpu)
{
unsigned int i;
- u64 *gdt = (u64 *)(cpu_gdt(cpu) + GDT_ENTRY_TLS_MIN);
+ u64 *gdt = (u64 *)(get_cpu_gdt_table(cpu) + GDT_ENTRY_TLS_MIN);
for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
gdt[i] = t->tls_array[i];
--
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