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| author | Ingo Molnar <mingo@kernel.org> | 2015-07-31 10:59:20 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-31 13:31:10 +0200 |
| commit | af3e565a8542c4be699a0403b88fd6c691f5914f (patch) | |
| tree | 88b5cc9f6b08f046b39e523c9c6609ab8347f815 /arch/x86/include/asm/vm86.h | |
| parent | x86/vm86: Use the normal pt_regs area for vm86 (diff) | |
| download | linux-af3e565a8542c4be699a0403b88fd6c691f5914f.tar.xz linux-af3e565a8542c4be699a0403b88fd6c691f5914f.zip | |
x86/vm86: Move the vm86 IRQ definitions to vm86.h
Move vm86 specific definitions from irq_vectors.h to vm86.h.
Based on patch from Brian Gerst.
Originally-from: Brian Gerst <brgerst@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1438148483-11932-6-git-send-email-brgerst@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/vm86.h')
| -rw-r--r-- | arch/x86/include/asm/vm86.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/x86/include/asm/vm86.h b/arch/x86/include/asm/vm86.h index e45386eee17a..b0631965b935 100644 --- a/arch/x86/include/asm/vm86.h +++ b/arch/x86/include/asm/vm86.h @@ -49,7 +49,6 @@ int handle_vm86_trap(struct kernel_vm86_regs *, long, int); void save_v86_state(struct kernel_vm86_regs *, int); struct task_struct; -void release_vm86_irqs(struct task_struct *); #define free_vm86(t) do { \ struct thread_struct *__t = (t); \ @@ -59,6 +58,20 @@ void release_vm86_irqs(struct task_struct *); } \ } while (0) +/* + * Support for VM86 programs to request interrupts for + * real mode hardware drivers: + */ +#define FIRST_VM86_IRQ 3 +#define LAST_VM86_IRQ 15 + +static inline int invalid_vm86_irq(int irq) +{ + return irq < FIRST_VM86_IRQ || irq > LAST_VM86_IRQ; +} + +void release_vm86_irqs(struct task_struct *); + #else #define handle_vm86_fault(a, b) |