diff options
Diffstat (limited to 'arch/microblaze/include/asm')
| -rw-r--r-- | arch/microblaze/include/asm/device.h | 16 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/of_device.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/scatterlist.h | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/system.h | 11 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/thread_info.h | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/uaccess.h | 87 |
6 files changed, 85 insertions, 36 deletions
diff --git a/arch/microblaze/include/asm/device.h b/arch/microblaze/include/asm/device.h index 402b46e630f6..123b2fe72d01 100644 --- a/arch/microblaze/include/asm/device.h +++ b/arch/microblaze/include/asm/device.h @@ -12,29 +12,15 @@ struct device_node; struct dev_archdata { - /* Optional pointer to an OF device node */ - struct device_node *of_node; - /* DMA operations on that device */ struct dma_map_ops *dma_ops; void *dma_data; }; struct pdev_archdata { + u64 dma_mask; }; -static inline void dev_archdata_set_node(struct dev_archdata *ad, - struct device_node *np) -{ - ad->of_node = np; -} - -static inline struct device_node * -dev_archdata_get_node(const struct dev_archdata *ad) -{ - return ad->of_node; -} - #endif /* _ASM_MICROBLAZE_DEVICE_H */ diff --git a/arch/microblaze/include/asm/of_device.h b/arch/microblaze/include/asm/of_device.h index ba917cfaefe6..73cb98040982 100644 --- a/arch/microblaze/include/asm/of_device.h +++ b/arch/microblaze/include/asm/of_device.h @@ -21,9 +21,8 @@ * probed using OF properties. */ struct of_device { - struct device_node *node; /* to be obsoleted */ - u64 dma_mask; /* DMA mask */ struct device dev; /* Generic device interface */ + struct pdev_archdata archdata; }; extern ssize_t of_device_get_modalias(struct of_device *ofdev, diff --git a/arch/microblaze/include/asm/scatterlist.h b/arch/microblaze/include/asm/scatterlist.h index 35d786fe93ae..dc4a8900cc80 100644 --- a/arch/microblaze/include/asm/scatterlist.h +++ b/arch/microblaze/include/asm/scatterlist.h @@ -1 +1,3 @@ #include <asm-generic/scatterlist.h> + +#define ISA_DMA_THRESHOLD (~0UL) diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h index 59efb3fef957..48c4f0335e3f 100644 --- a/arch/microblaze/include/asm/system.h +++ b/arch/microblaze/include/asm/system.h @@ -12,6 +12,7 @@ #include <asm/registers.h> #include <asm/setup.h> #include <asm/irqflags.h> +#include <asm/cache.h> #include <asm-generic/cmpxchg.h> #include <asm-generic/cmpxchg-local.h> @@ -96,4 +97,14 @@ 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. + * We also modify NET_SKB_PAD to be a cacheline in size, thus maintaining + * cacheline alignment of buffers. + */ +#define NET_IP_ALIGN 2 +#define NET_SKB_PAD L1_CACHE_BYTES + #endif /* _ASM_MICROBLAZE_SYSTEM_H */ diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h index b2ca80f64640..8a8e9fc6e0c0 100644 --- a/arch/microblaze/include/asm/thread_info.h +++ b/arch/microblaze/include/asm/thread_info.h @@ -122,7 +122,7 @@ static inline struct thread_info *current_thread_info(void) /* restore singlestep on return to user mode */ #define TIF_SINGLESTEP 4 #define TIF_IRET 5 /* return with iret */ -#define TIF_MEMDIE 6 +#define TIF_MEMDIE 6 /* is terminating due to OOM killer */ #define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */ #define TIF_SECCOMP 10 /* secure computing */ #define TIF_FREEZE 14 /* Freezing for suspend */ diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index 446bec29b142..26460d15b338 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -182,6 +182,39 @@ extern long __user_bad(void); * Returns zero on success, or -EFAULT on error. * On error, the variable @x is set to zero. */ +#define get_user(x, ptr) \ + __get_user_check((x), (ptr), sizeof(*(ptr))) + +#define __get_user_check(x, ptr, size) \ +({ \ + unsigned long __gu_val = 0; \ + const typeof(*(ptr)) __user *__gu_addr = (ptr); \ + int __gu_err = 0; \ + \ + if (access_ok(VERIFY_READ, __gu_addr, size)) { \ + switch (size) { \ + case 1: \ + __get_user_asm("lbu", __gu_addr, __gu_val, \ + __gu_err); \ + break; \ + case 2: \ + __get_user_asm("lhu", __gu_addr, __gu_val, \ + __gu_err); \ + break; \ + case 4: \ + __get_user_asm("lw", __gu_addr, __gu_val, \ + __gu_err); \ + break; \ + default: \ + __gu_err = __user_bad(); \ + break; \ + } \ + } else { \ + __gu_err = -EFAULT; \ + } \ + x = (typeof(*(ptr)))__gu_val; \ + __gu_err; \ +}) #define __get_user(x, ptr) \ ({ \ @@ -206,12 +239,6 @@ extern long __user_bad(void); }) -#define get_user(x, ptr) \ -({ \ - access_ok(VERIFY_READ, (ptr), sizeof(*(ptr))) \ - ? __get_user((x), (ptr)) : -EFAULT; \ -}) - #define __put_user_asm(insn, __gu_ptr, __gu_val, __gu_err) \ ({ \ __asm__ __volatile__ ( \ @@ -266,6 +293,42 @@ extern long __user_bad(void); * * Returns zero on success, or -EFAULT on error. */ +#define put_user(x, ptr) \ + __put_user_check((x), (ptr), sizeof(*(ptr))) + +#define __put_user_check(x, ptr, size) \ +({ \ + typeof(*(ptr)) __pu_val; \ + typeof(*(ptr)) __user *__pu_addr = (ptr); \ + int __pu_err = 0; \ + \ + __pu_val = (x); \ + if (access_ok(VERIFY_WRITE, __pu_addr, size)) { \ + switch (size) { \ + case 1: \ + __put_user_asm("sb", __pu_addr, __pu_val, \ + __pu_err); \ + break; \ + case 2: \ + __put_user_asm("sh", __pu_addr, __pu_val, \ + __pu_err); \ + break; \ + case 4: \ + __put_user_asm("sw", __pu_addr, __pu_val, \ + __pu_err); \ + break; \ + case 8: \ + __put_user_asm_8(__pu_addr, __pu_val, __pu_err);\ + break; \ + default: \ + __pu_err = __user_bad(); \ + break; \ + } \ + } else { \ + __pu_err = -EFAULT; \ + } \ + __pu_err; \ +}) #define __put_user(x, ptr) \ ({ \ @@ -290,18 +353,6 @@ extern long __user_bad(void); __gu_err; \ }) -#ifndef CONFIG_MMU - -#define put_user(x, ptr) __put_user((x), (ptr)) - -#else /* CONFIG_MMU */ - -#define put_user(x, ptr) \ -({ \ - access_ok(VERIFY_WRITE, (ptr), sizeof(*(ptr))) \ - ? __put_user((x), (ptr)) : -EFAULT; \ -}) -#endif /* CONFIG_MMU */ /* copy_to_from_user */ #define __copy_from_user(to, from, n) \ |