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x86: 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@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Glauber de Oliveira Costa 2008-01-30 13:31:12 +01:00 committed by Ingo Molnar
parent 6b68f01baa
commit f6dc247cac
4 changed files with 8 additions and 8 deletions
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2
arch/x86/kernel/setup64.c
View File

@ -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]);

2
arch/x86/kernel/suspend_64.c
View File

@ -140,7 +140,7 @@ 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 */

2
arch/x86/kernel/vsyscall_64.c
View File

@ -297,7 +297,7 @@ static void __cpuinit vsyscall_set_cpu(int cpu)
/* 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;

10
include/asm-x86/desc_64.h
View File

@ -48,7 +48,7 @@ static inline void write_ldt_entry(struct desc_struct *ldt,
}
/* 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 cpu, void *addr)
* -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 cpu, void *addr, int size)
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];