From f87519e8f4f1de9b39a40e56479a7ad2443169dd Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 30 Jan 2008 13:34:05 +0100 Subject: [PATCH] x86: introduce max_pfn_mapped 64bit uses end_pfn_map and 32bit uses max_low_pfn. There are several files which have #ifdef'ed defines which map either to end_pfn_map or max_low_pfn. Replace this by a universal define and clean up all the other instances. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86/kernel/efi.c | 4 ++-- arch/x86/mm/pageattr-test.c | 21 +++++++-------------- include/asm-x86/efi.h | 2 -- include/asm-x86/page.h | 2 ++ 4 files changed, 11 insertions(+), 18 deletions(-) diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 834ecfb41e9..57b57778bf6 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -396,7 +396,7 @@ static void __init runtime_code_page_mkexec(void) md = p; end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT); if (md->type == EFI_RUNTIME_SERVICES_CODE && - (end >> PAGE_SHIFT) <= end_pfn_map) + (end >> PAGE_SHIFT) <= max_pfn_mapped) change_page_attr_addr(md->virt_addr, md->num_pages, PAGE_KERNEL_EXEC_NOCACHE); @@ -429,7 +429,7 @@ void __init efi_enter_virtual_mode(void) continue; end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT); if ((md->attribute & EFI_MEMORY_WB) && - ((end >> PAGE_SHIFT) <= end_pfn_map)) + ((end >> PAGE_SHIFT) <= max_pfn_mapped)) md->virt_addr = (unsigned long)__va(md->phys_addr); else md->virt_addr = (unsigned long) diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c index d7a93008cc1..6a41a0f0c14 100644 --- a/arch/x86/mm/pageattr-test.c +++ b/arch/x86/mm/pageattr-test.c @@ -27,13 +27,6 @@ enum { GPS = (1<<30) }; -#ifdef CONFIG_X86_64 -# include -# define max_mapped end_pfn_map -#else -# define max_mapped max_low_pfn -#endif - struct split_state { long lpg, gpg, spg, exec; long min_exec, max_exec; @@ -48,7 +41,7 @@ static __init int print_split(struct split_state *s) s->lpg = s->gpg = s->spg = s->exec = 0; s->min_exec = ~0UL; s->max_exec = 0; - for (i = 0; i < max_mapped; ) { + for (i = 0; i < max_pfn_mapped; ) { unsigned long addr = (unsigned long)__va(i << PAGE_SHIFT); int level; pte_t *pte; @@ -97,8 +90,8 @@ static __init int print_split(struct split_state *s) expected = (s->gpg*GPS + s->lpg*LPS)/PAGE_SIZE + s->spg + missed; if (expected != i) { - printk(KERN_ERR "CPA max_mapped %lu but expected %lu\n", - max_mapped, expected); + printk(KERN_ERR "CPA max_pfn_mapped %lu but expected %lu\n", + max_pfn_mapped, expected); return 1; } return err; @@ -120,22 +113,22 @@ static __init int exercise_pageattr(void) printk(KERN_INFO "CPA exercising pageattr\n"); - bm = vmalloc((max_mapped + 7) / 8); + bm = vmalloc((max_pfn_mapped + 7) / 8); if (!bm) { printk(KERN_ERR "CPA Cannot vmalloc bitmap\n"); return -ENOMEM; } - memset(bm, 0, (max_mapped + 7) / 8); + memset(bm, 0, (max_pfn_mapped + 7) / 8); failed += print_split(&sa); srandom32(100); for (i = 0; i < NTEST; i++) { - unsigned long pfn = random32() % max_mapped; + unsigned long pfn = random32() % max_pfn_mapped; addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT); len[i] = random32() % 100; - len[i] = min_t(unsigned long, len[i], max_mapped - pfn - 1); + len[i] = min_t(unsigned long, len[i], max_pfn_mapped - pfn - 1); if (len[i] == 0) len[i] = 1; diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h index 9e08ae84795..9c68a1f098d 100644 --- a/include/asm-x86/efi.h +++ b/include/asm-x86/efi.h @@ -35,8 +35,6 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...); #define efi_ioremap(addr, size) ioremap(addr, size) -#define end_pfn_map max_low_pfn - #else /* !CONFIG_X86_32 */ #define MAX_EFI_IO_PAGES 100 diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index eba88d94009..e2c79d8dcdc 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -33,8 +33,10 @@ #ifdef CONFIG_X86_64 #include +#define max_pfn_mapped end_pfn_map #else #include +#define max_pfn_mapped max_low_pfn #endif /* CONFIG_X86_64 */ #define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) -- 2.41.1