diff options
Diffstat (limited to 'arch/nds32/include/asm/highmem.h')
| -rw-r--r-- | arch/nds32/include/asm/highmem.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/arch/nds32/include/asm/highmem.h b/arch/nds32/include/asm/highmem.h index fe986d0e6e3f..16159a8716f2 100644 --- a/arch/nds32/include/asm/highmem.h +++ b/arch/nds32/include/asm/highmem.h @@ -5,7 +5,6 @@ #define _ASM_HIGHMEM_H #include <asm/proc-fns.h> -#include <asm/kmap_types.h> #include <asm/fixmap.h> /* @@ -45,11 +44,22 @@ extern pte_t *pkmap_page_table; extern void kmap_init(void); /* - * The following functions are already defined by <linux/highmem.h> - * when CONFIG_HIGHMEM is not set. + * FIXME: The below looks broken vs. a kmap_atomic() in task context which + * is interupted and another kmap_atomic() happens in interrupt context. + * But what do I know about nds32. -- tglx */ -#ifdef CONFIG_HIGHMEM -extern void *kmap_atomic_pfn(unsigned long pfn); -#endif +#define arch_kmap_local_post_map(vaddr, pteval) \ + do { \ + __nds32__tlbop_inv(vaddr); \ + __nds32__mtsr_dsb(vaddr, NDS32_SR_TLB_VPN); \ + __nds32__tlbop_rwr(pteval); \ + __nds32__isb(); \ + } while (0) + +#define arch_kmap_local_pre_unmap(vaddr) \ + do { \ + __nds32__tlbop_inv(vaddr); \ + __nds32__isb(); \ + } while (0) #endif |