x86 32-bit boot: rename bt_ioremap() to early_ioremap()

This patch renames bt_ioremap to early_ioremap, which is used in
x86_64. This makes it easier to merge i386 and x86_64 usage.

[ mingo@elte.hu: fix ]

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

9 files changed, 50 insertions, 61 deletions

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 2939b015c2ed..5d492f99d967 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -256,12 +256,12 @@ void __init efi_init(void)
         memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
         memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
 
-        efi.systab = efi_early_ioremap((unsigned long)efi_phys.systab,
-                                       sizeof(efi_system_table_t));
+        efi.systab = early_ioremap((unsigned long)efi_phys.systab,
+                                   sizeof(efi_system_table_t));
         if (efi.systab == NULL)
                 printk(KERN_ERR "Couldn't map the EFI system table!\n");
         memcpy(&efi_systab, efi.systab, sizeof(efi_system_table_t));
-        efi_early_iounmap(efi.systab, sizeof(efi_system_table_t));
+        early_iounmap(efi.systab, sizeof(efi_system_table_t));
         efi.systab = &efi_systab;
 
         /*
@@ -278,14 +278,14 @@ void __init efi_init(void)
         /*
          * Show what we know for posterity
          */
-        c16 = tmp = efi_early_ioremap(efi.systab->fw_vendor, 2);
+        c16 = tmp = early_ioremap(efi.systab->fw_vendor, 2);
         if (c16) {
                 for (i = 0; i < sizeof(vendor) && *c16; ++i)
                         vendor[i] = *c16++;
                 vendor[i] = '\0';
         } else
                 printk(KERN_ERR PFX "Could not map the firmware vendor!\n");
-        efi_early_iounmap(tmp, 2);
+        early_iounmap(tmp, 2);
 
         printk(KERN_INFO "EFI v%u.%.02u by %s \n",
                efi.systab->hdr.revision >> 16,
@@ -294,7 +294,7 @@ void __init efi_init(void)
         /*
          * Let's see what config tables the firmware passed to us.
          */
-        config_tables = efi_early_ioremap(
+        config_tables = early_ioremap(
                 efi.systab->tables,
                 efi.systab->nr_tables * sizeof(efi_config_table_t));
         if (config_tables == NULL)
@@ -328,7 +328,7 @@ void __init efi_init(void)
                 }
         }
         printk("\n");
-        efi_early_iounmap(config_tables,
+        early_iounmap(config_tables,
                           efi.systab->nr_tables * sizeof(efi_config_table_t));
 
         /*
@@ -337,8 +337,8 @@ void __init efi_init(void)
          * address of several of the EFI runtime functions, needed to
          * set the firmware into virtual mode.
          */
-        runtime = efi_early_ioremap((unsigned long)efi.systab->runtime,
-                                    sizeof(efi_runtime_services_t));
+        runtime = early_ioremap((unsigned long)efi.systab->runtime,
+                                sizeof(efi_runtime_services_t));
         if (runtime != NULL) {
                 /*
                  * We will only need *early* access to the following
@@ -357,11 +357,11 @@ void __init efi_init(void)
         } else
                 printk(KERN_ERR "Could not map the EFI runtime service "
                        "table!\n");
-        efi_early_iounmap(runtime, sizeof(efi_runtime_services_t));
+        early_iounmap(runtime, sizeof(efi_runtime_services_t));
 
         /* Map the EFI memory map */
-        memmap.map = efi_early_ioremap((unsigned long)memmap.phys_map,
-                                       memmap.nr_map * memmap.desc_size);
+        memmap.map = early_ioremap((unsigned long)memmap.phys_map,
+                                   memmap.nr_map * memmap.desc_size);
         if (memmap.map == NULL)
                 printk(KERN_ERR "Could not map the EFI memory map!\n");
         memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index afd2c3b039d6..114b896d7573 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -117,7 +117,7 @@ void __init efi_map_memmap(void)
 {
         memmap.map = NULL;
 
-        memmap.map = bt_ioremap((unsigned long) memmap.phys_map,
+        memmap.map = early_ioremap((unsigned long) memmap.phys_map,
                         (memmap.nr_map * memmap.desc_size));
         if (memmap.map == NULL)
                 printk(KERN_ERR "Could not remap the EFI memmap!\n");
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 35db426de300..c038b09b1723 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -577,9 +577,9 @@ static void __init relocate_initrd(void)
                 if (clen > MAX_MAP_CHUNK-slop)
                         clen = MAX_MAP_CHUNK-slop;
                 mapaddr = ramdisk_image & PAGE_MASK;
-                p = bt_ioremap(mapaddr, clen+slop);
+                p = early_ioremap(mapaddr, clen+slop);
                 memcpy(q, p+slop, clen);
-                bt_iounmap(p, clen+slop);
+                early_iounmap(p, clen+slop);
                 q += clen;
                 ramdisk_image += clen;
                 ramdisk_size  -= clen;
@@ -697,7 +697,7 @@ void __init setup_arch(char **cmdline_p)
         memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
         pre_setup_arch_hook();
         early_cpu_init();
-        bt_ioremap_init();
+        early_ioremap_init();
 
 #ifdef CONFIG_EFI
         if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
diff --git a/arch/x86/kernel/srat_32.c b/arch/x86/kernel/srat_32.c
index 24bfd4a9e62a..2bf6903cb444 100644
--- a/arch/x86/kernel/srat_32.c
+++ b/arch/x86/kernel/srat_32.c
@@ -297,7 +297,7 @@ int __init get_memcfg_from_srat(void)
         }
 
         rsdt = (struct acpi_table_rsdt *)
-            bt_ioremap(rsdp->rsdt_physical_address, sizeof(struct acpi_table_rsdt));
+            early_ioremap(rsdp->rsdt_physical_address, sizeof(struct acpi_table_rsdt));
 
         if (!rsdt) {
                 printk(KERN_WARNING
@@ -337,11 +337,11 @@ int __init get_memcfg_from_srat(void)
         for (i = 0; i < tables; i++) {
                 /* Map in header, then map in full table length. */
                 header = (struct acpi_table_header *)
-                        bt_ioremap(saved_rsdt.table.table_offset_entry[i], sizeof(struct acpi_table_header));
+                        early_ioremap(saved_rsdt.table.table_offset_entry[i], sizeof(struct acpi_table_header));
                 if (!header)
                         break;
                 header = (struct acpi_table_header *)
-                        bt_ioremap(saved_rsdt.table.table_offset_entry[i], header->length);
+                        early_ioremap(saved_rsdt.table.table_offset_entry[i], header->length);
                 if (!header)
                         break;
 
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index f4e1894367a6..e00c1d7128b1 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -429,11 +429,11 @@ static void __init pagetable_init (void)
          * Fixed mappings, only the page table structure has to be
          * created - mappings will be set by set_fixmap():
          */
-        bt_ioremap_clear();
+        early_ioremap_clear();
         vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
         end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK;
         page_table_range_init(vaddr, end, pgd_base);
-        bt_ioremap_reset();
+        early_ioremap_reset();
 
         permanent_kmaps_init(pgd_base);
 
diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index fd1f5b6cfa20..43b5e9fd6370 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -212,36 +212,36 @@ static __initdata int after_paging_init;
 static __initdata unsigned long bm_pte[1024]
                                 __attribute__((aligned(PAGE_SIZE)));
 
-static inline unsigned long * __init bt_ioremap_pgd(unsigned long addr)
+static inline unsigned long * __init early_ioremap_pgd(unsigned long addr)
 {
         return (unsigned long *)swapper_pg_dir + ((addr >> 22) & 1023);
 }
 
-static inline unsigned long * __init bt_ioremap_pte(unsigned long addr)
+static inline unsigned long * __init early_ioremap_pte(unsigned long addr)
 {
         return bm_pte + ((addr >> PAGE_SHIFT) & 1023);
 }
 
-void __init bt_ioremap_init(void)
+void __init early_ioremap_init(void)
 {
         unsigned long *pgd;
 
-        pgd = bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+        pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
         *pgd = __pa(bm_pte) | _PAGE_TABLE;
         memset(bm_pte, 0, sizeof(bm_pte));
-        BUG_ON(pgd != bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+        BUG_ON(pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
 }
 
-void __init bt_ioremap_clear(void)
+void __init early_ioremap_clear(void)
 {
         unsigned long *pgd;
 
-        pgd = bt_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
+        pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
         *pgd = 0;
         __flush_tlb_all();
 }
 
-void __init bt_ioremap_reset(void)
+void __init early_ioremap_reset(void)
 {
         enum fixed_addresses idx;
         unsigned long *pte, phys, addr;
@@ -249,7 +249,7 @@ void __init bt_ioremap_reset(void)
         after_paging_init = 1;
         for (idx = FIX_BTMAP_BEGIN; idx <= FIX_BTMAP_END; idx--) {
                 addr = fix_to_virt(idx);
-                pte = bt_ioremap_pte(addr);
+                pte = early_ioremap_pte(addr);
                 if (!*pte & _PAGE_PRESENT) {
                         phys = *pte & PAGE_MASK;
                         set_fixmap(idx, phys);
@@ -257,7 +257,7 @@ void __init bt_ioremap_reset(void)
         }
 }
 
-static void __init __bt_set_fixmap(enum fixed_addresses idx,
+static void __init __early_set_fixmap(enum fixed_addresses idx,
                                    unsigned long phys, pgprot_t flags)
 {
         unsigned long *pte, addr = __fix_to_virt(idx);
@@ -266,7 +266,7 @@ static void __init __bt_set_fixmap(enum fixed_addresses idx,
                 BUG();
                 return;
         }
-        pte = bt_ioremap_pte(addr);
+        pte = early_ioremap_pte(addr);
         if (pgprot_val(flags))
                 *pte = (phys & PAGE_MASK) | pgprot_val(flags);
         else
@@ -274,24 +274,24 @@ static void __init __bt_set_fixmap(enum fixed_addresses idx,
         __flush_tlb_one(addr);
 }
 
-static inline void __init bt_set_fixmap(enum fixed_addresses idx,
+static inline void __init early_set_fixmap(enum fixed_addresses idx,
                                         unsigned long phys)
 {
         if (after_paging_init)
                 set_fixmap(idx, phys);
         else
-                __bt_set_fixmap(idx, phys, PAGE_KERNEL);
+                __early_set_fixmap(idx, phys, PAGE_KERNEL);
 }
 
-static inline void __init bt_clear_fixmap(enum fixed_addresses idx)
+static inline void __init early_clear_fixmap(enum fixed_addresses idx)
 {
         if (after_paging_init)
                 clear_fixmap(idx);
         else
-                __bt_set_fixmap(idx, 0, __pgprot(0));
+                __early_set_fixmap(idx, 0, __pgprot(0));
 }
 
-void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
+void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 {
         unsigned long offset, last_addr;
         unsigned int nrpages;
@@ -327,7 +327,7 @@ void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
          */
         idx = FIX_BTMAP_BEGIN;
         while (nrpages > 0) {
-                bt_set_fixmap(idx, phys_addr);
+                early_set_fixmap(idx, phys_addr);
                 phys_addr += PAGE_SIZE;
                 --idx;
                 --nrpages;
@@ -335,7 +335,7 @@ void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
         return (void*) (offset + fix_to_virt(FIX_BTMAP_BEGIN));
 }
 
-void __init bt_iounmap(void *addr, unsigned long size)
+void __init early_iounmap(void *addr, unsigned long size)
 {
         unsigned long virt_addr;
         unsigned long offset;
@@ -350,7 +350,7 @@ void __init bt_iounmap(void *addr, unsigned long size)
 
         idx = FIX_BTMAP_BEGIN;
         while (nrpages > 0) {
-                bt_clear_fixmap(idx);
+                early_clear_fixmap(idx);
                 --idx;
                 --nrpages;
         }
diff --git a/include/asm-x86/dmi.h b/include/asm-x86/dmi.h
index 5008c365e6e4..1241e6ad1935 100644
--- a/include/asm-x86/dmi.h
+++ b/include/asm-x86/dmi.h
@@ -5,9 +5,6 @@
 
 #ifdef CONFIG_X86_32
 
-/* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap bt_ioremap
-#define dmi_iounmap bt_iounmap
 #define dmi_alloc alloc_bootmem
 
 #else /* CONFIG_X86_32 */
@@ -28,9 +25,9 @@ static inline void *dmi_alloc(unsigned len)
         return dmi_alloc_data + idx;
 }
 
+#endif
+
 #define dmi_ioremap early_ioremap
 #define dmi_iounmap early_iounmap
 
 #endif
-
-#endif
diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h
index 10fcf20bdc73..8380131ca542 100644
--- a/include/asm-x86/efi.h
+++ b/include/asm-x86/efi.h
@@ -33,9 +33,6 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...);
 #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)       \
         efi_call_virt(f, a1, a2, a3, a4, a5, a6)
 
-#define efi_early_ioremap(addr, size)           bt_ioremap(addr, size)
-#define efi_early_iounmap(vaddr, size)          bt_iounmap(vaddr, size)
-
 #define efi_ioremap(addr, size)                 ioremap(addr, size)
 
 #define end_pfn_map                             max_low_pfn
@@ -91,13 +88,8 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
         efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
                   (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
 
-#define efi_early_ioremap(addr, size)           early_ioremap(addr, size)
-#define efi_early_iounmap(vaddr, size)          early_iounmap(vaddr, size)
-
 extern void *efi_ioremap(unsigned long offset, unsigned long size);
 
-extern int efi_time;
-
 #endif /* CONFIG_X86_32 */
 
 extern void efi_reserve_bootmem(void);
diff --git a/include/asm-x86/io_32.h b/include/asm-x86/io_32.h
index f7b733d9ace9..059a1fee4de3 100644
--- a/include/asm-x86/io_32.h
+++ b/include/asm-x86/io_32.h
@@ -135,20 +135,20 @@ static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
 extern void iounmap(volatile void __iomem *addr);
 
 /*
- * bt_ioremap() and bt_iounmap() are for temporary early boot-time
+ * early_ioremap() and early_iounmap() are for temporary early boot-time
  * mappings, before the real ioremap() is functional.
  * A boot-time mapping is currently limited to at most 16 pages.
  */
-extern void bt_ioremap_init(void);
-extern void bt_ioremap_clear(void);
-extern void bt_ioremap_reset(void);
-extern void *bt_ioremap(unsigned long offset, unsigned long size);
-extern void bt_iounmap(void *addr, unsigned long size);
+extern void early_ioremap_init(void);
+extern void early_ioremap_clear(void);
+extern void early_ioremap_reset(void);
+extern void *early_ioremap(unsigned long offset, unsigned long size);
+extern void early_iounmap(void *addr, unsigned long size);
 extern void __iomem *fix_ioremap(unsigned idx, unsigned long phys);
 
 /* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap bt_ioremap
-#define dmi_iounmap bt_iounmap
+#define dmi_ioremap early_ioremap
+#define dmi_iounmap early_iounmap
 #define dmi_alloc alloc_bootmem
 
 /*