Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Fix module loading on system with WB cache microblaze: export assembly functions used by modules microblaze: Remove powerpc code from Microblaze port microblaze: Remove compilation warnings in cache macro microblaze: export assembly functions used by modules microblaze: fix get_user/put_user side-effects microblaze: re-enable interrupts before calling schedule
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commit
7ac992ef61
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@ -182,6 +182,39 @@ extern long __user_bad(void);
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* Returns zero on success, or -EFAULT on error.
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* On error, the variable @x is set to zero.
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*/
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#define get_user(x, ptr) \
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__get_user_check((x), (ptr), sizeof(*(ptr)))
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#define __get_user_check(x, ptr, size) \
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({ \
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unsigned long __gu_val = 0; \
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const typeof(*(ptr)) __user *__gu_addr = (ptr); \
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int __gu_err = 0; \
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\
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if (access_ok(VERIFY_READ, __gu_addr, size)) { \
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switch (size) { \
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case 1: \
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__get_user_asm("lbu", __gu_addr, __gu_val, \
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__gu_err); \
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break; \
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case 2: \
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__get_user_asm("lhu", __gu_addr, __gu_val, \
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__gu_err); \
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break; \
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case 4: \
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__get_user_asm("lw", __gu_addr, __gu_val, \
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__gu_err); \
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break; \
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default: \
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__gu_err = __user_bad(); \
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break; \
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} \
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} else { \
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__gu_err = -EFAULT; \
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} \
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x = (typeof(*(ptr)))__gu_val; \
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__gu_err; \
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})
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#define __get_user(x, ptr) \
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({ \
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@ -206,12 +239,6 @@ extern long __user_bad(void);
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})
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#define get_user(x, ptr) \
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({ \
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access_ok(VERIFY_READ, (ptr), sizeof(*(ptr))) \
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? __get_user((x), (ptr)) : -EFAULT; \
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})
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#define __put_user_asm(insn, __gu_ptr, __gu_val, __gu_err) \
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({ \
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__asm__ __volatile__ ( \
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@ -266,6 +293,42 @@ extern long __user_bad(void);
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*
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* Returns zero on success, or -EFAULT on error.
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*/
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#define put_user(x, ptr) \
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__put_user_check((x), (ptr), sizeof(*(ptr)))
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#define __put_user_check(x, ptr, size) \
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({ \
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typeof(*(ptr)) __pu_val; \
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typeof(*(ptr)) __user *__pu_addr = (ptr); \
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int __pu_err = 0; \
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\
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__pu_val = (x); \
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if (access_ok(VERIFY_WRITE, __pu_addr, size)) { \
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switch (size) { \
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case 1: \
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__put_user_asm("sb", __pu_addr, __pu_val, \
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__pu_err); \
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break; \
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case 2: \
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__put_user_asm("sh", __pu_addr, __pu_val, \
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__pu_err); \
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break; \
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case 4: \
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__put_user_asm("sw", __pu_addr, __pu_val, \
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__pu_err); \
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break; \
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case 8: \
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__put_user_asm_8(__pu_addr, __pu_val, __pu_err);\
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break; \
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default: \
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__pu_err = __user_bad(); \
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break; \
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} \
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} else { \
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__pu_err = -EFAULT; \
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} \
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__pu_err; \
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})
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#define __put_user(x, ptr) \
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({ \
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@ -290,18 +353,6 @@ extern long __user_bad(void);
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__gu_err; \
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})
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#ifndef CONFIG_MMU
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#define put_user(x, ptr) __put_user((x), (ptr))
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#else /* CONFIG_MMU */
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#define put_user(x, ptr) \
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({ \
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access_ok(VERIFY_WRITE, (ptr), sizeof(*(ptr))) \
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? __put_user((x), (ptr)) : -EFAULT; \
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})
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#endif /* CONFIG_MMU */
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/* copy_to_from_user */
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#define __copy_from_user(to, from, n) \
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@ -137,8 +137,9 @@ do { \
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do { \
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int step = -line_length; \
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int align = ~(line_length - 1); \
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int count; \
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end = ((end & align) == end) ? end - line_length : end & align; \
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int count = end - start; \
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count = end - start; \
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WARN_ON(count < 0); \
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\
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__asm__ __volatile__ (" 1: " #op " %0, %1; \
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@ -476,6 +476,8 @@ ENTRY(ret_from_fork)
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nop
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work_pending:
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enable_irq
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andi r11, r19, _TIF_NEED_RESCHED
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beqi r11, 1f
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bralid r15, schedule
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@ -52,3 +52,14 @@ EXPORT_SYMBOL_GPL(_ebss);
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extern void _mcount(void);
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EXPORT_SYMBOL(_mcount);
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#endif
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/*
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* Assembly functions that may be used (directly or indirectly) by modules
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*/
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EXPORT_SYMBOL(__copy_tofrom_user);
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EXPORT_SYMBOL(__strncpy_user);
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#ifdef CONFIG_OPT_LIB_ASM
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EXPORT_SYMBOL(memcpy);
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EXPORT_SYMBOL(memmove);
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#endif
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@ -16,6 +16,7 @@
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#include <linux/string.h>
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#include <asm/pgtable.h>
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#include <asm/cacheflush.h>
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void *module_alloc(unsigned long size)
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{
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@ -151,6 +152,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
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int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
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struct module *module)
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{
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flush_dcache();
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return 0;
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}
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@ -47,6 +47,7 @@ unsigned long memory_start;
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EXPORT_SYMBOL(memory_start);
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unsigned long memory_end; /* due to mm/nommu.c */
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unsigned long memory_size;
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EXPORT_SYMBOL(memory_size);
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/*
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* paging_init() sets up the page tables - in fact we've already done this.
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@ -42,6 +42,7 @@
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unsigned long ioremap_base;
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unsigned long ioremap_bot;
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EXPORT_SYMBOL(ioremap_bot);
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/* The maximum lowmem defaults to 768Mb, but this can be configured to
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* another value.
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@ -1507,7 +1507,7 @@ void pcibios_finish_adding_to_bus(struct pci_bus *bus)
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pci_bus_add_devices(bus);
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/* Fixup EEH */
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eeh_add_device_tree_late(bus);
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/* eeh_add_device_tree_late(bus); */
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}
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EXPORT_SYMBOL_GPL(pcibios_finish_adding_to_bus);
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