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-rw-r--r--arch/x86/boot/Makefile1
-rw-r--r--arch/x86/boot/a20.c79
-rw-r--r--arch/x86/boot/boot.h3
-rw-r--r--arch/x86/boot/compressed/head_32.S8
-rw-r--r--arch/x86/boot/compressed/head_64.S10
-rw-r--r--arch/x86/boot/copy.S40
-rw-r--r--arch/x86/boot/header.S2
-rw-r--r--arch/x86/boot/main.c5
-rw-r--r--arch/x86/boot/pmjump.S16
-rw-r--r--arch/x86/boot/video-vesa.c11
-rw-r--r--arch/x86/boot/voyager.c40
11 files changed, 73 insertions, 142 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index cd48c721001..c70eff69a1f 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -32,7 +32,6 @@ setup-y += a20.o cmdline.o copy.o cpu.o cpucheck.o edd.o
setup-y += header.o main.o mca.o memory.o pm.o pmjump.o
setup-y += printf.o string.o tty.o video.o video-mode.o version.o
setup-$(CONFIG_X86_APM_BOOT) += apm.o
-setup-$(CONFIG_X86_VOYAGER) += voyager.o
# The link order of the video-*.o modules can matter. In particular,
# video-vga.o *must* be listed first, followed by video-vesa.o.
diff --git a/arch/x86/boot/a20.c b/arch/x86/boot/a20.c
index 4063d630def..7c19ce8c244 100644
--- a/arch/x86/boot/a20.c
+++ b/arch/x86/boot/a20.c
@@ -2,6 +2,7 @@
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007-2008 rPath, Inc. - All Rights Reserved
+ * Copyright 2009 Intel Corporation
*
* This file is part of the Linux kernel, and is made available under
* the terms of the GNU General Public License version 2.
@@ -15,16 +16,23 @@
#include "boot.h"
#define MAX_8042_LOOPS 100000
+#define MAX_8042_FF 32
static int empty_8042(void)
{
u8 status;
int loops = MAX_8042_LOOPS;
+ int ffs = MAX_8042_FF;
while (loops--) {
io_delay();
status = inb(0x64);
+ if (status == 0xff) {
+ /* FF is a plausible, but very unlikely status */
+ if (!--ffs)
+ return -1; /* Assume no KBC present */
+ }
if (status & 1) {
/* Read and discard input data */
io_delay();
@@ -118,44 +126,37 @@ static void enable_a20_fast(void)
int enable_a20(void)
{
-#if defined(CONFIG_X86_ELAN)
- /* Elan croaks if we try to touch the KBC */
- enable_a20_fast();
- while (!a20_test_long())
- ;
- return 0;
-#elif defined(CONFIG_X86_VOYAGER)
- /* On Voyager, a20_test() is unsafe? */
- enable_a20_kbc();
- return 0;
-#else
int loops = A20_ENABLE_LOOPS;
- while (loops--) {
- /* First, check to see if A20 is already enabled
- (legacy free, etc.) */
- if (a20_test_short())
- return 0;
-
- /* Next, try the BIOS (INT 0x15, AX=0x2401) */
- enable_a20_bios();
- if (a20_test_short())
- return 0;
-
- /* Try enabling A20 through the keyboard controller */
- empty_8042();
- if (a20_test_short())
- return 0; /* BIOS worked, but with delayed reaction */
-
- enable_a20_kbc();
- if (a20_test_long())
- return 0;
-
- /* Finally, try enabling the "fast A20 gate" */
- enable_a20_fast();
- if (a20_test_long())
- return 0;
- }
-
- return -1;
-#endif
+ int kbc_err;
+
+ while (loops--) {
+ /* First, check to see if A20 is already enabled
+ (legacy free, etc.) */
+ if (a20_test_short())
+ return 0;
+
+ /* Next, try the BIOS (INT 0x15, AX=0x2401) */
+ enable_a20_bios();
+ if (a20_test_short())
+ return 0;
+
+ /* Try enabling A20 through the keyboard controller */
+ kbc_err = empty_8042();
+
+ if (a20_test_short())
+ return 0; /* BIOS worked, but with delayed reaction */
+
+ if (!kbc_err) {
+ enable_a20_kbc();
+ if (a20_test_long())
+ return 0;
+ }
+
+ /* Finally, try enabling the "fast A20 gate" */
+ enable_a20_fast();
+ if (a20_test_long())
+ return 0;
+ }
+
+ return -1;
}
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index cc0ef13fba7..7b2692e897e 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -302,9 +302,6 @@ void probe_cards(int unsafe);
/* video-vesa.c */
void vesa_store_edid(void);
-/* voyager.c */
-int query_voyager(void);
-
#endif /* __ASSEMBLY__ */
#endif /* BOOT_BOOT_H */
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 29c5fbf0839..3a8a866fb2e 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -25,14 +25,12 @@
#include <linux/linkage.h>
#include <asm/segment.h>
-#include <asm/page.h>
+#include <asm/page_types.h>
#include <asm/boot.h>
#include <asm/asm-offsets.h>
.section ".text.head","ax",@progbits
- .globl startup_32
-
-startup_32:
+ENTRY(startup_32)
cld
/* test KEEP_SEGMENTS flag to see if the bootloader is asking
* us to not reload segments */
@@ -113,6 +111,8 @@ startup_32:
*/
leal relocated(%ebx), %eax
jmp *%eax
+ENDPROC(startup_32)
+
.section ".text"
relocated:
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 1d5dff4123e..ed4a8294800 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -26,8 +26,8 @@
#include <linux/linkage.h>
#include <asm/segment.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
+#include <asm/pgtable_types.h>
+#include <asm/page_types.h>
#include <asm/boot.h>
#include <asm/msr.h>
#include <asm/processor-flags.h>
@@ -35,9 +35,7 @@
.section ".text.head"
.code32
- .globl startup_32
-
-startup_32:
+ENTRY(startup_32)
cld
/* test KEEP_SEGMENTS flag to see if the bootloader is asking
* us to not reload segments */
@@ -176,6 +174,7 @@ startup_32:
/* Jump from 32bit compatibility mode into 64bit mode. */
lret
+ENDPROC(startup_32)
no_longmode:
/* This isn't an x86-64 CPU so hang */
@@ -295,7 +294,6 @@ relocated:
call decompress_kernel
popq %rsi
-
/*
* Jump to the decompressed kernel.
*/
diff --git a/arch/x86/boot/copy.S b/arch/x86/boot/copy.S
index ef50c84e8b4..11f272c6f5e 100644
--- a/arch/x86/boot/copy.S
+++ b/arch/x86/boot/copy.S
@@ -8,6 +8,8 @@
*
* ----------------------------------------------------------------------- */
+#include <linux/linkage.h>
+
/*
* Memory copy routines
*/
@@ -15,9 +17,7 @@
.code16gcc
.text
- .globl memcpy
- .type memcpy, @function
-memcpy:
+GLOBAL(memcpy)
pushw %si
pushw %di
movw %ax, %di
@@ -31,11 +31,9 @@ memcpy:
popw %di
popw %si
ret
- .size memcpy, .-memcpy
+ENDPROC(memcpy)
- .globl memset
- .type memset, @function
-memset:
+GLOBAL(memset)
pushw %di
movw %ax, %di
movzbl %dl, %eax
@@ -48,52 +46,42 @@ memset:
rep; stosb
popw %di
ret
- .size memset, .-memset
+ENDPROC(memset)
- .globl copy_from_fs
- .type copy_from_fs, @function
-copy_from_fs:
+GLOBAL(copy_from_fs)
pushw %ds
pushw %fs
popw %ds
call memcpy
popw %ds
ret
- .size copy_from_fs, .-copy_from_fs
+ENDPROC(copy_from_fs)
- .globl copy_to_fs
- .type copy_to_fs, @function
-copy_to_fs:
+GLOBAL(copy_to_fs)
pushw %es
pushw %fs
popw %es
call memcpy
popw %es
ret
- .size copy_to_fs, .-copy_to_fs
+ENDPROC(copy_to_fs)
#if 0 /* Not currently used, but can be enabled as needed */
-
- .globl copy_from_gs
- .type copy_from_gs, @function
-copy_from_gs:
+GLOBAL(copy_from_gs)
pushw %ds
pushw %gs
popw %ds
call memcpy
popw %ds
ret
- .size copy_from_gs, .-copy_from_gs
- .globl copy_to_gs
+ENDPROC(copy_from_gs)
- .type copy_to_gs, @function
-copy_to_gs:
+GLOBAL(copy_to_gs)
pushw %es
pushw %gs
popw %es
call memcpy
popw %es
ret
- .size copy_to_gs, .-copy_to_gs
-
+ENDPROC(copy_to_gs)
#endif
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index b993062e9a5..7ccff4884a2 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -19,7 +19,7 @@
#include <linux/utsrelease.h>
#include <asm/boot.h>
#include <asm/e820.h>
-#include <asm/page.h>
+#include <asm/page_types.h>
#include <asm/setup.h>
#include "boot.h"
#include "offsets.h"
diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c
index 197421db1af..58f0415d3ae 100644
--- a/arch/x86/boot/main.c
+++ b/arch/x86/boot/main.c
@@ -149,11 +149,6 @@ void main(void)
/* Query MCA information */
query_mca();
- /* Voyager */
-#ifdef CONFIG_X86_VOYAGER
- query_voyager();
-#endif
-
/* Query Intel SpeedStep (IST) information */
query_ist();
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index 141b6e20ed3..019c17a7585 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -15,18 +15,15 @@
#include <asm/boot.h>
#include <asm/processor-flags.h>
#include <asm/segment.h>
+#include <linux/linkage.h>
.text
-
- .globl protected_mode_jump
- .type protected_mode_jump, @function
-
.code16
/*
* void protected_mode_jump(u32 entrypoint, u32 bootparams);
*/
-protected_mode_jump:
+GLOBAL(protected_mode_jump)
movl %edx, %esi # Pointer to boot_params table
xorl %ebx, %ebx
@@ -47,12 +44,10 @@ protected_mode_jump:
.byte 0x66, 0xea # ljmpl opcode
2: .long in_pm32 # offset
.word __BOOT_CS # segment
-
- .size protected_mode_jump, .-protected_mode_jump
+ENDPROC(protected_mode_jump)
.code32
- .type in_pm32, @function
-in_pm32:
+GLOBAL(in_pm32)
# Set up data segments for flat 32-bit mode
movl %ecx, %ds
movl %ecx, %es
@@ -78,5 +73,4 @@ in_pm32:
lldt %cx
jmpl *%eax # Jump to the 32-bit entrypoint
-
- .size in_pm32, .-in_pm32
+ENDPROC(in_pm32)
diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
index 75115849af3..4a58c8ce3f6 100644
--- a/arch/x86/boot/video-vesa.c
+++ b/arch/x86/boot/video-vesa.c
@@ -269,9 +269,8 @@ void vesa_store_edid(void)
we genuinely have to assume all registers are destroyed here. */
asm("pushw %%es; movw %2,%%es; "INT10"; popw %%es"
- : "+a" (ax), "+b" (bx)
- : "c" (cx), "D" (di)
- : "esi");
+ : "+a" (ax), "+b" (bx), "+c" (cx), "+D" (di)
+ : : "esi", "edx");
if (ax != 0x004f)
return; /* No EDID */
@@ -285,9 +284,9 @@ void vesa_store_edid(void)
dx = 0; /* EDID block number */
di =(size_t) &boot_params.edid_info; /* (ES:)Pointer to block */
asm(INT10
- : "+a" (ax), "+b" (bx), "+d" (dx), "=m" (boot_params.edid_info)
- : "c" (cx), "D" (di)
- : "esi");
+ : "+a" (ax), "+b" (bx), "+d" (dx), "=m" (boot_params.edid_info),
+ "+c" (cx), "+D" (di)
+ : : "esi");
#endif /* CONFIG_FIRMWARE_EDID */
}
diff --git a/arch/x86/boot/voyager.c b/arch/x86/boot/voyager.c
deleted file mode 100644
index 433909d61e5..00000000000
--- a/arch/x86/boot/voyager.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* -*- linux-c -*- ------------------------------------------------------- *
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- * Copyright 2007 rPath, Inc. - All Rights Reserved
- *
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * Get the Voyager config information
- */
-
-#include "boot.h"
-
-int query_voyager(void)
-{
- u8 err;
- u16 es, di;
- /* Abuse the apm_bios_info area for this */
- u8 *data_ptr = (u8 *)&boot_params.apm_bios_info;
-
- data_ptr[0] = 0xff; /* Flag on config not found(?) */
-
- asm("pushw %%es ; "
- "int $0x15 ; "
- "setc %0 ; "
- "movw %%es, %1 ; "
- "popw %%es"
- : "=q" (err), "=r" (es), "=D" (di)
- : "a" (0xffc0));
-
- if (err)
- return -1; /* Not Voyager */
-
- set_fs(es);
- copy_from_fs(data_ptr, di, 7); /* Table is 7 bytes apparently */
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-11 22:44:58 +0000