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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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we can move flags from u32 to natural size - assembly code uses
offsetof.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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redo Roland's "signals: x86 TS_RESTORE_SIGMASK" ontop of the unified
thread_info.h file.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Make them similar so that both use THREAD_ORDER and THREAD_FLAGS and have a
THREAD_SIZE definition that is setup in asm/page_xx.h
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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The TIF masks are basically the same. x86_32 also has _TIF_SYSCALL_EMU which is
zero for the 64 bit case. The tif masks become the same.
x86_64 has an additional _TIF_DONOTIFY_MASK. Does not hurt for the 32 bit case
since it is only used in x86_64 arch code.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Both TIF lists are essentially the same. x86_32 also has TIF_SYSCALL_EMU which
must be undefined for the 64 bit case.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Same for both 32 and 64 bit so simply put it in to the common area.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Both definitions are the same. So move to common x86 area.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Merge the thread_info definition into one structure definition for both arches.
The __u32 is equal to unsigned long for 32 bit.
sysenter_return is used both for the IA32 emulation for 64 and x86_32.
Avoid complicated #ifdef by simply always including it.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Merge both. x86_64 has an additional TS_COMPAT that is harmless
for 32 bit.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Move shared includes to a common area in thread_info.h
Adds asm/types.h for x86_64 and linux/compiler.h for x86_32. Not needed but
we can avoid some ifdeffing and it simplifies later joining.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Simple merge of both thread_info_32.h and thread_info_64.h into thread_info.h.
Comments for #ifndef __ASM_THREAD_INFO_H and #ifdef __KERNEL__
are the same.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Split the FPU save area from the task struct. This allows easy migration
of FPU context, and it's generally cleaner. It also allows the following
two optimizations:
1) only allocate when the application actually uses FPU, so in the first
lazy FPU trap. This could save memory for non-fpu using apps. Next patch
does this lazy allocation.
2) allocate the right size for the actual cpu rather than 512 bytes always.
Patches enabling xsave/xrstor support (coming shortly) will take advantage
of this.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Move the headers to include/asm-x86 and fixup the
header install make rules
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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