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author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-23 17:22:16 +0000 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-24 18:27:32 +0000 |
commit | 8a327f23e23fa509e6e3c2263ae1cc0a67dec387 (patch) | |
tree | 119abf09e1ec9babaf78e6889187f9d54864b118 /arch/mips/include/asm/jump_label.h | |
parent | 5a9a8d1a99c617df82339456fbdd30d6ed3a856b (diff) | |
parent | d315777b32a4696feb86f2a0c9e9f39c94683649 (diff) |
Merge remote branch 'linus/master' into drm-intel-fixes
Merge with Linus to resolve conflicting fixes for the reusing the stale
HEAD value during intel_ring_wait().
Conflicts:
drivers/gpu/drm/i915/intel_ringbuffer.c
Diffstat (limited to 'arch/mips/include/asm/jump_label.h')
-rw-r--r-- | arch/mips/include/asm/jump_label.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h new file mode 100644 index 000000000000..7622ccf75076 --- /dev/null +++ b/arch/mips/include/asm/jump_label.h @@ -0,0 +1,48 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (c) 2010 Cavium Networks, Inc. + */ +#ifndef _ASM_MIPS_JUMP_LABEL_H +#define _ASM_MIPS_JUMP_LABEL_H + +#include <linux/types.h> + +#ifdef __KERNEL__ + +#define JUMP_LABEL_NOP_SIZE 4 + +#ifdef CONFIG_64BIT +#define WORD_INSN ".dword" +#else +#define WORD_INSN ".word" +#endif + +#define JUMP_LABEL(key, label) \ + do { \ + asm goto("1:\tnop\n\t" \ + "nop\n\t" \ + ".pushsection __jump_table, \"a\"\n\t" \ + WORD_INSN " 1b, %l[" #label "], %0\n\t" \ + ".popsection\n\t" \ + : : "i" (key) : : label); \ + } while (0) + + +#endif /* __KERNEL__ */ + +#ifdef CONFIG_64BIT +typedef u64 jump_label_t; +#else +typedef u32 jump_label_t; +#endif + +struct jump_entry { + jump_label_t code; + jump_label_t target; + jump_label_t key; +}; + +#endif /* _ASM_MIPS_JUMP_LABEL_H */ |