X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-i386%2Fprocessor.h;h=e4165087e66e7c0a1c931cc13e65e8c733c9b208;hb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;hp=6fcdb7d1d493d5adef2470365d54054388941473;hpb=a2c21200f1c81b08cb55e417b68150bba439b646;p=linux-2.6.git

diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h
index 6fcdb7d1d..e4165087e 100644
--- a/include/asm-i386/processor.h
+++ b/include/asm-i386/processor.h
@@ -19,6 +19,7 @@
 #include <linux/cache.h>
 #include <linux/config.h>
 #include <linux/threads.h>
+#include <asm/percpu.h>
 
 /* flag for disabling the tsc */
 extern int tsc_disable;
@@ -84,8 +85,8 @@ struct cpuinfo_x86 {
 
 extern struct cpuinfo_x86 boot_cpu_data;
 extern struct cpuinfo_x86 new_cpu_data;
-extern struct tss_struct init_tss[NR_CPUS];
 extern struct tss_struct doublefault_tss;
+DECLARE_PER_CPU(struct tss_struct, init_tss);
 
 #ifdef CONFIG_SMP
 extern struct cpuinfo_x86 cpu_data[];
@@ -287,15 +288,18 @@ extern unsigned int BIOS_revision;
 extern unsigned int mca_pentium_flag;
 
 /*
- * User space process size: 3GB (default).
+ * User space process size: (3GB default).
  */
-#define TASK_SIZE	(PAGE_OFFSET)
+#define __TASK_SIZE		(__PAGE_OFFSET)
+#define TASK_SIZE		((unsigned long)__TASK_SIZE)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
  */
 #define TASK_UNMAPPED_BASE	(PAGE_ALIGN(TASK_SIZE / 3))
 
+#define HAVE_ARCH_PICK_MMAP_LAYOUT
+
 /*
  * Size of io_bitmap.
  */
@@ -304,6 +308,7 @@ extern unsigned int mca_pentium_flag;
 #define IO_BITMAP_LONGS (IO_BITMAP_BYTES/sizeof(long))
 #define IO_BITMAP_OFFSET offsetof(struct tss_struct,io_bitmap)
 #define INVALID_IO_BITMAP_OFFSET 0x8000
+#define INVALID_IO_BITMAP_OFFSET_LAZY 0x9000
 
 struct i387_fsave_struct {
 	long	cwd;
@@ -357,6 +362,8 @@ typedef struct {
 	unsigned long seg;
 } mm_segment_t;
 
+struct thread_struct;
+
 struct tss_struct {
 	unsigned short	back_link,__blh;
 	unsigned long	esp0;
@@ -388,10 +395,15 @@ struct tss_struct {
 	 * be within the limit.
 	 */
 	unsigned long	io_bitmap[IO_BITMAP_LONGS + 1];
+	/*
+	 * Cache the current maximum and the last task that used the bitmap:
+	 */
+	unsigned long io_bitmap_max;
+	struct thread_struct *io_bitmap_owner;
 	/*
 	 * pads the TSS to be cacheline-aligned (size is 0x100)
 	 */
-	unsigned long __cacheline_filler[37];
+	unsigned long __cacheline_filler[35];
 	/*
 	 * .. and then another 0x100 bytes for emergency kernel stack
 	 */
@@ -422,6 +434,8 @@ struct thread_struct {
 	unsigned int		saved_fs, saved_gs;
 /* IO permissions */
 	unsigned long	*io_bitmap_ptr;
+/* max allowed port in the bitmap, in bytes: */
+	unsigned long	io_bitmap_max;
 };
 
 #define INIT_THREAD  {							\
@@ -439,7 +453,6 @@ struct thread_struct {
 #define INIT_TSS  {							\
 	.esp0		= sizeof(init_stack) + (long)&init_stack,	\
 	.ss0		= __KERNEL_DS,					\
-	.esp1		= sizeof(init_tss[0]) + (long)&init_tss[0],	\
 	.ss1		= __KERNEL_CS,					\
 	.ldt		= GDT_ENTRY_LDT,				\
 	.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,			\
@@ -645,9 +658,4 @@ extern void select_idle_routine(const struct cpuinfo_x86 *c);
 
 #define cache_line_size() (boot_cpu_data.x86_cache_alignment)
 
-#ifdef CONFIG_SCHED_SMT
-#define ARCH_HAS_SCHED_DOMAIN
-#define ARCH_HAS_SCHED_WAKE_IDLE
-#endif
-
 #endif /* __ASM_I386_PROCESSOR_H */