diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 16:13:44 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 16:13:44 -0700 |
commit | b1c907f3b2675ecb01e340948fc62d6535ff5ac3 (patch) | |
tree | 978e7ba356ff57c4febe55f3ee0d0955ea721f14 /arch/microblaze/include/asm | |
parent | 91e67a996c60a347ad7b918a74efb0f6b3b274c3 (diff) | |
parent | 84ac218f0257a0cfd7689d9a44f53118dbf307b3 (diff) |
Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW usage
microblaze: Use delay slot in __strnlen_user, __strncpy_user
microblaze: Remove NET_IP_ALIGN from system.h
microblaze: Add __ucmpdi2() helper function
microblaze: Raise SIGFPE/FPE_INTDIV for div by zero
microblaze: Switch ELF_ARCH code to 189
microblaze: Added DMA sync operations
microblaze: Moved __dma_sync() to dma-mapping.h
microblaze: Add PVR for Microblaze v8.20.a
microblaze: Fix access_ok macro
microblaze: Add loop unrolling for PAGE in copy_tofrom_user
microblaze: Simplify logic for unaligned byte copying
microblaze: Change label names - copy_tofrom_user
microblaze: Separate fixup section definition
microblaze: Change label name in copy_tofrom_user
microblaze: Clear top bit from cnt32_to_63
Diffstat (limited to 'arch/microblaze/include/asm')
-rw-r--r-- | arch/microblaze/include/asm/dma-mapping.h | 20 | ||||
-rw-r--r-- | arch/microblaze/include/asm/elf.h | 8 | ||||
-rw-r--r-- | arch/microblaze/include/asm/system.h | 9 | ||||
-rw-r--r-- | arch/microblaze/include/asm/uaccess.h | 2 |
4 files changed, 24 insertions, 15 deletions
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h index a569514cf19f..3a3e5b886854 100644 --- a/arch/microblaze/include/asm/dma-mapping.h +++ b/arch/microblaze/include/asm/dma-mapping.h @@ -28,12 +28,12 @@ #include <linux/dma-attrs.h> #include <asm/io.h> #include <asm-generic/dma-coherent.h> +#include <asm/cacheflush.h> #define DMA_ERROR_CODE (~(dma_addr_t)0x0) #define __dma_alloc_coherent(dev, gfp, size, handle) NULL #define __dma_free_coherent(size, addr) ((void)0) -#define __dma_sync(addr, size, rw) ((void)0) static inline unsigned long device_to_mask(struct device *dev) { @@ -95,6 +95,22 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask) #include <asm-generic/dma-mapping-common.h> +static inline void __dma_sync(unsigned long paddr, + size_t size, enum dma_data_direction direction) +{ + switch (direction) { + case DMA_TO_DEVICE: + case DMA_BIDIRECTIONAL: + flush_dcache_range(paddr, paddr + size); + break; + case DMA_FROM_DEVICE: + invalidate_dcache_range(paddr, paddr + size); + break; + default: + BUG(); + } +} + static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { struct dma_map_ops *ops = get_dma_ops(dev); @@ -135,7 +151,7 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { BUG_ON(direction == DMA_NONE); - __dma_sync(vaddr, size, (int)direction); + __dma_sync(virt_to_phys(vaddr), size, (int)direction); } #endif /* _ASM_MICROBLAZE_DMA_MAPPING_H */ diff --git a/arch/microblaze/include/asm/elf.h b/arch/microblaze/include/asm/elf.h index 098dfdde4b06..834849f59ae8 100644 --- a/arch/microblaze/include/asm/elf.h +++ b/arch/microblaze/include/asm/elf.h @@ -16,13 +16,15 @@ * I've snaffled the value from the microblaze binutils source code * /binutils/microblaze/include/elf/microblaze.h */ -#define EM_XILINX_MICROBLAZE 0xbaab -#define ELF_ARCH EM_XILINX_MICROBLAZE +#define EM_MICROBLAZE 189 +#define EM_MICROBLAZE_OLD 0xbaab +#define ELF_ARCH EM_MICROBLAZE /* * This is used to ensure we don't load something for the wrong architecture. */ -#define elf_check_arch(x) ((x)->e_machine == EM_XILINX_MICROBLAZE) +#define elf_check_arch(x) ((x)->e_machine == EM_MICROBLAZE \ + || (x)->e_machine == EM_MICROBLAZE_OLD) /* * These are used to set parameters in the core dumps. diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h index e6a2284571dc..5a433cbaafb3 100644 --- a/arch/microblaze/include/asm/system.h +++ b/arch/microblaze/include/asm/system.h @@ -17,8 +17,6 @@ #include <asm-generic/cmpxchg.h> #include <asm-generic/cmpxchg-local.h> -#define __ARCH_WANT_INTERRUPTS_ON_CTXSW - struct task_struct; struct thread_info; @@ -96,11 +94,4 @@ extern struct dentry *of_debugfs_root; #define arch_align_stack(x) (x) -/* - * MicroBlaze doesn't handle unaligned accesses in hardware. - * - * Based on this we force the IP header alignment in network drivers. - */ -#define NET_IP_ALIGN 2 - #endif /* _ASM_MICROBLAZE_SYSTEM_H */ diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index 5bb95a11880d..072b0077abf9 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -95,7 +95,7 @@ static inline int ___range_ok(unsigned long addr, unsigned long size) * - "addr", "addr + size" and "size" are all below the limit */ #define access_ok(type, addr, size) \ - (get_fs().seg > (((unsigned long)(addr)) | \ + (get_fs().seg >= (((unsigned long)(addr)) | \ (size) | ((unsigned long)(addr) + (size)))) /* || printk("access_ok failed for %s at 0x%08lx (size %d), seg 0x%08x\n", |