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| author | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 15:49:57 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 15:49:57 +0900 |
| commit | d7c30c682a278abe1a52db83f69efec1a9d8f8c2 (patch) | |
| tree | 48918e531904edb05944b1e097c386b87e746a24 /include/asm-sh/cpu-sh4 | |
| parent | 373e68b5472d421cbd2703e7a77caf053f78c005 (diff) | |
| download | linux-d7c30c682a278abe1a52db83f69efec1a9d8f8c2.tar.gz linux-d7c30c682a278abe1a52db83f69efec1a9d8f8c2.tar.bz2 linux-d7c30c682a278abe1a52db83f69efec1a9d8f8c2.zip | |
sh: Store Queue API rework.
Rewrite the store queue API for a per-cpu interface in the driver
model. The old miscdevice is dropped, due to TASK_SIZE limitations,
and no one was using it anyways.
Carve up and allocate store queue space with a bitmap, back sq
mapping objects with a slab cache, and let userspace worry about
its own prefetching.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/cpu-sh4')
| -rw-r--r-- | include/asm-sh/cpu-sh4/sq.h | 23 |
1 files changed, 5 insertions, 18 deletions
diff --git a/include/asm-sh/cpu-sh4/sq.h b/include/asm-sh/cpu-sh4/sq.h index 366b09166d3b..586d6491816a 100644 --- a/include/asm-sh/cpu-sh4/sq.h +++ b/include/asm-sh/cpu-sh4/sq.h @@ -17,7 +17,7 @@ * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be * mapped to any physical address space. Since data is written (and aligned) * to 32-byte boundaries, we need to be sure that all allocations are aligned. - */ + */ #define SQ_SIZE 32 #define SQ_ALIGN_MASK (~(SQ_SIZE - 1)) #define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK) @@ -26,23 +26,10 @@ #define SQ_QACR1 (P4SEG_REG_BASE + 0x3c) #define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000) -struct sq_mapping { - const char *name; - - unsigned long sq_addr; - unsigned long addr; - unsigned int size; - - struct list_head list; -}; - /* arch/sh/kernel/cpu/sh4/sq.c */ -extern struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *name); -extern void sq_unmap(struct sq_mapping *map); - -extern void sq_clear(unsigned long addr, unsigned int len); -extern void sq_flush(void *addr); -extern void sq_flush_range(unsigned long start, unsigned int len); +unsigned long sq_remap(unsigned long phys, unsigned int size, + const char *name, unsigned long flags); +void sq_unmap(unsigned long vaddr); +void sq_flush_range(unsigned long start, unsigned int len); #endif /* __ASM_CPU_SH4_SQ_H */ - |