diff options
author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-01-27 11:14:02 -0500 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-01-27 11:14:02 -0500 |
commit | 6c02b7b1610f873888af20f291c07730889ff0f9 (patch) | |
tree | 1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/c6x/include/asm/cache.h | |
parent | 7a7546b377bdaa25ac77f33d9433c59f259b9688 (diff) | |
parent | dcd6c92267155e70a94b3927bce681ce74b80d1f (diff) |
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits)
Linux 3.3-rc1
x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits
qnx4: don't leak ->BitMap on late failure exits
qnx4: reduce the insane nesting in qnx4_checkroot()
qnx4: di_fname is an array, for crying out loud...
KEYS: Permit key_serial() to be called with a const key pointer
keys: fix user_defined key sparse messages
ima: fix cred sparse warning
uml: fix compile for x86-64
MPILIB: Add a missing ENOMEM check
tpm: fix (ACPI S3) suspend regression
nvme: fix merge error due to change of 'make_request_fn' fn type
xen: using EXPORT_SYMBOL requires including export.h
gpio: tps65910: Use correct offset for gpio initialization
acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec
intel_idle: Split up and provide per CPU initialization func
ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2
tg3: Fix single-vector MSI-X code
openvswitch: Fix multipart datapath dumps.
ipv6: fix per device IP snmp counters
...
Diffstat (limited to 'arch/c6x/include/asm/cache.h')
-rw-r--r-- | arch/c6x/include/asm/cache.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/c6x/include/asm/cache.h b/arch/c6x/include/asm/cache.h new file mode 100644 index 000000000000..6d521d96d941 --- /dev/null +++ b/arch/c6x/include/asm/cache.h @@ -0,0 +1,90 @@ +/* + * Port on Texas Instruments TMS320C6x architecture + * + * Copyright (C) 2005, 2006, 2009, 2010 Texas Instruments Incorporated + * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef _ASM_C6X_CACHE_H +#define _ASM_C6X_CACHE_H + +#include <linux/irqflags.h> + +/* + * Cache line size + */ +#define L1D_CACHE_BYTES 64 +#define L1P_CACHE_BYTES 32 +#define L2_CACHE_BYTES 128 + +/* + * L2 used as cache + */ +#define L2MODE_SIZE L2MODE_256K_CACHE + +/* + * For practical reasons the L1_CACHE_BYTES defines should not be smaller than + * the L2 line size + */ +#define L1_CACHE_BYTES L2_CACHE_BYTES + +#define L2_CACHE_ALIGN_LOW(x) \ + (((x) & ~(L2_CACHE_BYTES - 1))) +#define L2_CACHE_ALIGN_UP(x) \ + (((x) + (L2_CACHE_BYTES - 1)) & ~(L2_CACHE_BYTES - 1)) +#define L2_CACHE_ALIGN_CNT(x) \ + (((x) + (sizeof(int) - 1)) & ~(sizeof(int) - 1)) + +#define ARCH_DMA_MINALIGN L1_CACHE_BYTES +#define ARCH_SLAB_MINALIGN L1_CACHE_BYTES + +/* + * This is the granularity of hardware cacheability control. + */ +#define CACHEABILITY_ALIGN 0x01000000 + +/* + * Align a physical address to MAR regions + */ +#define CACHE_REGION_START(v) \ + (((u32) (v)) & ~(CACHEABILITY_ALIGN - 1)) +#define CACHE_REGION_END(v) \ + (((u32) (v) + (CACHEABILITY_ALIGN - 1)) & ~(CACHEABILITY_ALIGN - 1)) + +extern void __init c6x_cache_init(void); + +extern void enable_caching(unsigned long start, unsigned long end); +extern void disable_caching(unsigned long start, unsigned long end); + +extern void L1_cache_off(void); +extern void L1_cache_on(void); + +extern void L1P_cache_global_invalidate(void); +extern void L1D_cache_global_invalidate(void); +extern void L1D_cache_global_writeback(void); +extern void L1D_cache_global_writeback_invalidate(void); +extern void L2_cache_set_mode(unsigned int mode); +extern void L2_cache_global_writeback_invalidate(void); +extern void L2_cache_global_writeback(void); + +extern void L1P_cache_block_invalidate(unsigned int start, unsigned int end); +extern void L1D_cache_block_invalidate(unsigned int start, unsigned int end); +extern void L1D_cache_block_writeback_invalidate(unsigned int start, + unsigned int end); +extern void L1D_cache_block_writeback(unsigned int start, unsigned int end); +extern void L2_cache_block_invalidate(unsigned int start, unsigned int end); +extern void L2_cache_block_writeback(unsigned int start, unsigned int end); +extern void L2_cache_block_writeback_invalidate(unsigned int start, + unsigned int end); +extern void L2_cache_block_invalidate_nowait(unsigned int start, + unsigned int end); +extern void L2_cache_block_writeback_nowait(unsigned int start, + unsigned int end); + +extern void L2_cache_block_writeback_invalidate_nowait(unsigned int start, + unsigned int end); + +#endif /* _ASM_C6X_CACHE_H */ |