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authorEric Biederman <ebiederm@xmission.com>2003-04-22 19:02:15 +0000
committerEric Biederman <ebiederm@xmission.com>2003-04-22 19:02:15 +0000
commit8ca8d7665d671e10d72b8fcb4d69121d75f7906e (patch)
treedaad2699b4e6b6014bce5a76e82dd9c974801777 /src/arch/i386/lib
parentb138ac83b53da9abf3dc9a87a1cd4b3d3a8150bd (diff)
downloadcoreboot-8ca8d7665d671e10d72b8fcb4d69121d75f7906e.tar.xz
- Initial checkin of the freebios2 tree
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@784 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/i386/lib')
-rw-r--r--src/arch/i386/lib/c_start.S135
-rw-r--r--src/arch/i386/lib/console.c119
-rw-r--r--src/arch/i386/lib/console.inc527
-rw-r--r--src/arch/i386/lib/cpu.c139
-rw-r--r--src/arch/i386/lib/cpu_reset.inc9
-rw-r--r--src/arch/i386/lib/failover.lds1
-rw-r--r--src/arch/i386/lib/id.inc21
-rw-r--r--src/arch/i386/lib/id.lds6
-rw-r--r--src/arch/i386/lib/noop_failover.inc9
-rw-r--r--src/arch/i386/lib/pci_ops.c281
10 files changed, 1247 insertions, 0 deletions
diff --git a/src/arch/i386/lib/c_start.S b/src/arch/i386/lib/c_start.S
new file mode 100644
index 0000000000..f5ca3388f8
--- /dev/null
+++ b/src/arch/i386/lib/c_start.S
@@ -0,0 +1,135 @@
+#include <arch/asm.h>
+#include <arch/intel.h>
+#ifdef SMP
+#include <cpu/p6/apic.h>
+#endif
+ .section ".text"
+ .code32
+ .globl _start
+_start:
+ cli
+ lgdt %cs:gdtaddr
+ ljmp $0x10, $1f
+1: movl $0x18, %eax
+ movl %eax, %ds
+ movl %eax, %es
+ movl %eax, %ss
+ movl %eax, %fs
+ movl %eax, %gs
+
+ intel_chip_post_macro(0x13) /* post 12 */
+
+ /** clear stack */
+ leal EXT(_stack), %edi
+ movl $EXT(_estack), %ecx
+ subl %edi, %ecx
+ xorl %eax, %eax
+ rep
+ stosb
+
+ /** clear bss */
+ leal EXT(_bss), %edi
+ movl $EXT(_ebss), %ecx
+ subl %edi, %ecx
+ jz .Lnobss
+ xorl %eax, %eax
+ rep
+ stosb
+.Lnobss:
+
+ /* set new stack */
+ movl $_estack, %esp
+#ifdef SMP
+ /* Get the cpu id */
+ movl $APIC_DEFAULT_BASE, %edi
+ movl APIC_ID(%edi), %eax
+ shrl $24, %eax
+
+ /* Get the cpu index (MAX_CPUS on error) */
+ movl $-4, %ebx
+1: addl $4, %ebx
+ cmpl $(MAX_CPUS << 2), %ebx
+ je 2
+ cmpl %eax, EXT(initial_apicid)(%ebx)
+ jne 1b
+2: shrl $2, %ebx
+
+ /* Now compute the appropriate stack */
+ movl %ebx, %eax
+ movl $STACK_SIZE, %ebx
+ mull %ebx
+ subl %eax, %esp
+#endif
+
+ /* push the boot_complete flag */
+ pushl %ebp
+
+ /* Save the stack location */
+ movl %esp, %ebp
+
+ /*
+ * Now we are finished. Memory is up, data is copied and
+ * bss is cleared. Now we call the main routine and
+ * let it do the rest.
+ */
+ intel_chip_post_macro(0xfe) /* post fe */
+
+ /* Resort the stack location */
+ movl %ebp, %esp
+
+ /* The boot_complete flag has already been pushed */
+ call EXT(hardwaremain)
+ /*NOTREACHED*/
+.Lhlt:
+ intel_chip_post_macro(0xee) /* post fe */
+ hlt
+ jmp .Lhlt
+
+
+ .globl gdt, gdt_end, gdt_limit
+
+gdt_limit = gdt_end - gdt - 1 /* compute the table limit */
+gdtaddr:
+ .word gdt_limit
+ .long gdt /* we know the offset */
+
+gdt:
+// selgdt 0
+ .word 0x0000, 0x0000 /* dummy */
+ .byte 0x00, 0x00, 0x00, 0x00
+
+// selgdt 8
+ .word 0x0000, 0x0000 /* dummy */
+ .byte 0x00, 0x00, 0x00, 0x00
+
+// selgdt 0x10
+/* flat code segment */
+ .word 0xffff, 0x0000
+ .byte 0x00, 0x9b, 0xcf, 0x00
+
+//selgdt 0x18
+/* flat data segment */
+ .word 0xffff, 0x0000
+ .byte 0x00, 0x93, 0xcf, 0x00
+
+//selgdt 0x20
+ .word 0x0000, 0x0000 /* dummy */
+ .byte 0x00, 0x00, 0x00, 0x00
+
+#if defined(CONFIG_VGABIOS) && (CONFIG_VGABIOS == 1)
+ // from monty:
+ /* 0x00009a00,0000ffffULL, 20h: 16-bit 64k code at 0x00000000 */
+ /* 0x00009200,0000ffffULL 28h: 16-bit 64k data at 0x00000000 */
+// selgdt 0x28
+/*16-bit 64k code at 0x00000000 */
+ .word 0xffff, 0x0000
+ .byte 0, 0x9a, 0, 0
+
+// selgdt 0x30
+/*16-bit 64k data at 0x00000000 */
+ .word 0xffff, 0x0000
+ .byte 0, 0x92, 0, 0
+#endif // defined(CONFIG_VGABIOS) && (CONFIG_VGABIOS == 1)
+gdt_end:
+
+.code32
diff --git a/src/arch/i386/lib/console.c b/src/arch/i386/lib/console.c
new file mode 100644
index 0000000000..8c8eccdd2a
--- /dev/null
+++ b/src/arch/i386/lib/console.c
@@ -0,0 +1,119 @@
+#include <console/loglevel.h>
+
+static void __console_tx_byte(unsigned char byte)
+{
+ uart_tx_byte(byte);
+}
+
+static void __console_tx_nibble(unsigned nibble)
+{
+ unsigned char digit;
+ digit = nibble + '0';
+ if (digit > '9') {
+ digit += 39;
+ }
+ __console_tx_byte(digit);
+}
+
+static void __console_tx_char(int loglevel, unsigned char byte)
+{
+ if (ASM_CONSOLE_LOGLEVEL > loglevel) {
+ uart_tx_byte(byte);
+ }
+}
+
+static void __console_tx_hex8(int loglevel, unsigned char byte)
+{
+ if (ASM_CONSOLE_LOGLEVEL > loglevel) {
+ __console_tx_nibble(byte >> 4U);
+ __console_tx_nibble(byte & 0x0fU);
+ }
+}
+
+static void __console_tx_hex32(int loglevel, unsigned int value)
+{
+ if (ASM_CONSOLE_LOGLEVEL > loglevel) {
+ __console_tx_nibble((value >> 28U) & 0x0fU);
+ __console_tx_nibble((value >> 24U) & 0x0fU);
+ __console_tx_nibble((value >> 20U) & 0x0fU);
+ __console_tx_nibble((value >> 16U) & 0x0fU);
+ __console_tx_nibble((value >> 12U) & 0x0fU);
+ __console_tx_nibble((value >> 8U) & 0x0fU);
+ __console_tx_nibble((value >> 4U) & 0x0fU);
+ __console_tx_nibble(value & 0x0fU);
+ }
+}
+
+static void __console_tx_string(int loglevel, const char *str)
+{
+ if (ASM_CONSOLE_LOGLEVEL > loglevel) {
+ unsigned char ch;
+ while((ch = *str++) != '\0') {
+ __console_tx_byte(ch);
+ }
+ }
+}
+
+static void print_emerg_char(unsigned char byte) { __console_tx_char(BIOS_EMERG, byte); }
+static void print_emerg_hex8(unsigned char value){ __console_tx_hex8(BIOS_EMERG, value); }
+static void print_emerg_hex32(unsigned int value) { __console_tx_hex32(BIOS_EMERG, value); }
+static void print_emerg(const char *str) { __console_tx_string(BIOS_EMERG, str); }
+
+static void print_alert_char(unsigned char byte) { __console_tx_char(BIOS_ALERT, byte); }
+static void print_alert_hex8(unsigned char value) { __console_tx_hex8(BIOS_ALERT, value); }
+static void print_alert_hex32(unsigned int value) { __console_tx_hex32(BIOS_ALERT, value); }
+static void print_alert(const char *str) { __console_tx_string(BIOS_ALERT, str); }
+
+static void print_crit_char(unsigned char byte) { __console_tx_char(BIOS_CRIT, byte); }
+static void print_crit_hex8(unsigned char value) { __console_tx_hex8(BIOS_CRIT, value); }
+static void print_crit_hex32(unsigned int value) { __console_tx_hex32(BIOS_CRIT, value); }
+static void print_crit(const char *str) { __console_tx_string(BIOS_CRIT, str); }
+
+static void print_err_char(unsigned char byte) { __console_tx_char(BIOS_ERR, byte); }
+static void print_err_hex8(unsigned char value) { __console_tx_hex8(BIOS_ERR, value); }
+static void print_err_hex32(unsigned int value) { __console_tx_hex32(BIOS_ERR, value); }
+static void print_err(const char *str) { __console_tx_string(BIOS_ERR, str); }
+
+static void print_warning_char(unsigned char byte) { __console_tx_char(BIOS_WARNING, byte); }
+static void print_warning_hex8(unsigned char value) { __console_tx_hex8(BIOS_WARNING, value); }
+static void print_warning_hex32(unsigned int value) { __console_tx_hex32(BIOS_WARNING, value); }
+static void print_warning(const char *str) { __console_tx_string(BIOS_WARNING, str); }
+
+static void print_notice_char(unsigned char byte) { __console_tx_char(BIOS_NOTICE, byte); }
+static void print_notice_hex8(unsigned char value) { __console_tx_hex8(BIOS_NOTICE, value); }
+static void print_notice_hex32(unsigned int value) { __console_tx_hex32(BIOS_NOTICE, value); }
+static void print_notice(const char *str) { __console_tx_string(BIOS_NOTICE, str); }
+
+static void print_info_char(unsigned char byte) { __console_tx_char(BIOS_INFO, byte); }
+static void print_info_hex8(unsigned char value) { __console_tx_hex8(BIOS_INFO, value); }
+static void print_info_hex32(unsigned int value) { __console_tx_hex32(BIOS_INFO, value); }
+static void print_info(const char *str) { __console_tx_string(BIOS_INFO, str); }
+
+static void print_debug_char(unsigned char byte) { __console_tx_char(BIOS_DEBUG, byte); }
+static void print_debug_hex8(unsigned char value) { __console_tx_hex8(BIOS_DEBUG, value); }
+static void print_debug_hex32(unsigned int value) { __console_tx_hex32(BIOS_DEBUG, value); }
+static void print_debug(const char *str) { __console_tx_string(BIOS_DEBUG, str); }
+
+static void print_spew_char(unsigned char byte) { __console_tx_char(BIOS_SPEW, byte); }
+static void print_spew_hex8(unsigned char value) { __console_tx_hex8(BIOS_SPEW, value); }
+static void print_spew_hex32(unsigned int value) { __console_tx_hex32(BIOS_SPEW, value); }
+static void print_spew(const char *str) { __console_tx_string(BIOS_SPEW, str); }
+
+#define __STR(X) #X
+#define STR(X) __STR(X)
+
+#ifndef LINUXBIOS_EXTRA_VERSION
+#define LINUXBIOS_EXTRA_VERSION
+#endif
+
+static void console_init(void)
+{
+ static const char console_test[] =
+ "\r\n\r\nLinuxBIOS-"
+ STR(LINUXBIOS_VERSION)
+ STR(LINUXBIOS_EXTRA_VERSION)
+ " "
+ STR(LINUXBIOS_BUILD)
+ " starting...\r\n";
+ print_info(console_test);
+}
diff --git a/src/arch/i386/lib/console.inc b/src/arch/i386/lib/console.inc
new file mode 100644
index 0000000000..3d6b01b3a2
--- /dev/null
+++ b/src/arch/i386/lib/console.inc
@@ -0,0 +1,527 @@
+#include <console/loglevel.h>
+
+jmp console0
+
+#define __STR(X) #X
+#define STR(X) __STR(X)
+
+#ifndef LINUXBIOS_EXTRA_VERSION
+#define LINUXBIOS_EXTRA_VERSION
+#endif
+
+console_test:
+ .ascii "\r\n\r\nLinuxBIOS-"
+ .ascii STR(LINUXBIOS_VERSION)
+ .ascii STR(LINUXBIOS_EXTRA_VERSION)
+ .ascii " "
+ .ascii STR(LINUXBIOS_BUILD)
+ .asciz " starting...\r\n"
+
+#undef STR
+ /* uses: ax, dx */
+#if CONFIG_CONSOLE_SERIAL8250
+#define __CONSOLE_INLINE_TX_AL TTYS0_TX_AL
+#else
+#define __CONSOLE_INLINE_TX_AL
+#endif
+
+ /* uses: esp, ax, dx */
+#define __CONSOLE_TX_CHAR(byte) \
+ mov byte, %al ; \
+ CALLSP(console_tx_al)
+
+ /* uses: ax, dx */
+#define __CONSOLE_INLINE_TX_CHAR(byte) \
+ mov byte, %al ; \
+ __CONSOLE_INLINE_TX_AL
+
+ /* uses: esp, ax, edx */
+#define __CONSOLE_TX_HEX8(byte) \
+ mov byte, %al ; \
+ CALLSP(console_tx_hex8)
+
+ /* uses: byte, ax, dx */
+#define __CONSOLE_INLINE_TX_HEX8(byte) \
+ movb byte, %dl ; \
+ shll $16, %edx ; \
+ shr $4, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ shrl $16, %edx ; \
+ movb %dl, %al ; \
+ and $0x0f, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL
+
+ /* uses: esp, eax, ebx, dx */
+#define __CONSOLE_TX_HEX32(lword) \
+ mov lword, %eax ; \
+ CALLSP(console_tx_hex32)
+
+ /* uses: eax, lword, dx */
+#define __CONSOLE_INLINE_TX_HEX32(lword) \
+ mov lword, %eax ; \
+ shr $28, %eax ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ ; \
+ mov lword, %eax ; \
+ shr $24, %eax ; \
+ and $0x0f, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ ; \
+ mov lword, %eax ; \
+ shr $20, %eax ; \
+ and $0x0f, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ ; \
+ mov lword, %eax ; \
+ shr $16, %eax ; \
+ and $0x0f, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ ; \
+ mov lword, %eax ; \
+ shr $12, %eax ; \
+ and $0x0f, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ ; \
+ mov lword, %eax ; \
+ shr $8, %eax ; \
+ and $0x0f, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ ; \
+ mov lword, %eax ; \
+ shr $4, %eax ; \
+ and $0x0f, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ ; \
+ mov lword, %eax ; \
+ and $0x0f, %al ; \
+ add $'0', %al ; \
+ cmp $'9', %al ; \
+ jle 9f ; \
+ add $39, %al ; \
+9: ; \
+ __CONSOLE_INLINE_TX_AL
+
+
+ /* uses: esp, ebx, ax, dx */
+#define __CONSOLE_TX_STRING(string) \
+ mov string, %ebx ; \
+ CALLSP(console_tx_string)
+
+ /* uses: ebx, ax, dx */
+#define __CONSOLE_INLINE_TX_STRING(string) \
+ movl string, %ebx ; \
+10: movb (%ebx), %al ; \
+ incl %ebx ; \
+ testb %al, %al ; \
+ jz 11f ; \
+ __CONSOLE_INLINE_TX_AL ; \
+ jmp 10b ; \
+11:
+
+
+#define CONSOLE_EMERG_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_EMERG_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_EMERG_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_EMERG_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_EMERG_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_EMERG_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_EMERG_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_EMERG_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#define CONSOLE_ALERT_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_ALERT_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_ALERT_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_ALERT_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_ALERT_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_ALERT_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_ALERT_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_ALERT_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#define CONSOLE_CRIT_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_CRIT_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_CRIT_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_CRIT_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_CRIT_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_CRIT_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_CRIT_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_CRIT_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#define CONSOLE_ERR_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_ERR_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_ERR_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_ERR_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_ERR_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_ERR_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_ERR_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_ERR_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#define CONSOLE_WARNING_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_WARNING_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_WARNING_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_WARNING_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_WARNING_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_WARNING_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_WARNING_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_WARNING_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#define CONSOLE_NOTICE_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_NOTICE_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_NOTICE_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_NOTICE_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_NOTICE_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_NOTICE_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_NOTICE_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_NOTICE_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#define CONSOLE_INFO_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_INFO_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_INFO_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_INFO_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_INFO_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_INFO_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_INFO_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_INFO_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#define CONSOLE_DEBUG_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_DEBUG_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_DEBUG_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_DEBUG_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_DEBUG_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_DEBUG_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_DEBUG_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_DEBUG_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#define CONSOLE_SPEW_TX_CHAR(byte) __CONSOLE_TX_CHAR(byte)
+#define CONSOLE_SPEW_INLINE_TX_CHAR(byte) __CONSOLE_INLINE_TX_CHAR(byte)
+#define CONSOLE_SPEW_TX_HEX8(byte) __CONSOLE_TX_HEX8(byte)
+#define CONSOLE_SPEW_INLINE_TX_HEX8(byte) __CONSOLE_INLINE_TX_HEX8(byte)
+#define CONSOLE_SPEW_TX_HEX32(lword) __CONSOLE_TX_HEX32(lword)
+#define CONSOLE_SPEW_INLINE_TX_HEX32(lword) __CONSOLE_INLINE_TX_HEX32(lword)
+#define CONSOLE_SPEW_TX_STRING(string) __CONSOLE_TX_STRING(string)
+#define CONSOLE_SPEW_INLINE_TX_STRING(string) __CONSOLE_INLINE_TX_STRING(string)
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_EMERG
+#undef CONSOLE_EMERG_TX_CHAR
+#undef CONSOLE_EMERG_INLINE_TX_CHAR
+#undef CONSOLE_EMERG_TX_HEX8
+#undef CONSOLE_EMERG_INLINE_TX_HEX8
+#undef CONSOLE_EMERG_TX_HEX32
+#undef CONSOLE_EMERG_INLINE_TX_HEX32
+#undef CONSOLE_EMERG_TX_STRING
+#undef CONSOLE_EMERG_INLINE_TX_STRING
+#define CONSOLE_EMERG_TX_CHAR(byte)
+#define CONSOLE_EMERG_INLINE_TX_CHAR(byte)
+#define CONSOLE_EMERG_TX_HEX8(byte)
+#define CONSOLE_EMERG_INLINE_TX_HEX8(byte)
+#define CONSOLE_EMERG_TX_HEX32(lword)
+#define CONSOLE_EMERG_INLINE_TX_HEX32(lword)
+#define CONSOLE_EMERG_TX_STRING(string)
+#define CONSOLE_EMERG_INLINE_TX_STRING(string)
+#endif
+
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_ALERT
+#undef CONSOLE_ALERT_TX_CHAR
+#undef CONSOLE_ALERT_INLINE_TX_CHAR
+#undef CONSOLE_ALERT_TX_HEX8
+#undef CONSOLE_ALERT_INLINE_TX_HEX8
+#undef CONSOLE_ALERT_TX_HEX32
+#undef CONSOLE_ALERT_INLINE_TX_HEX32
+#undef CONSOLE_ALERT_TX_STRING
+#undef CONSOLE_ALERT_INLINE_TX_STRING
+#define CONSOLE_ALERT_TX_CHAR(byte)
+#define CONSOLE_ALERT_INLINE_TX_CHAR(byte)
+#define CONSOLE_ALERT_TX_HEX8(byte)
+#define CONSOLE_ALERT_INLINE_TX_HEX8(byte)
+#define CONSOLE_ALERT_TX_HEX32(lword)
+#define CONSOLE_ALERT_INLINE_TX_HEX32(lword)
+#define CONSOLE_ALERT_TX_STRING(string)
+#define CONSOLE_ALERT_INLINE_TX_STRING(string)
+#endif
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_CRIT
+#undef CONSOLE_CRIT_TX_CHAR
+#undef CONSOLE_CRIT_INLINE_TX_CHAR
+#undef CONSOLE_CRIT_TX_HEX8
+#undef CONSOLE_CRIT_INLINE_TX_HEX8
+#undef CONSOLE_CRIT_TX_HEX32
+#undef CONSOLE_CRIT_INLINE_TX_HEX32
+#undef CONSOLE_CRIT_TX_STRING
+#undef CONSOLE_CRIT_INLINE_TX_STRING
+#define CONSOLE_CRIT_TX_CHAR(byte)
+#define CONSOLE_CRIT_INLINE_TX_CHAR(byte)
+#define CONSOLE_CRIT_TX_HEX8(byte)
+#define CONSOLE_CRIT_INLINE_TX_HEX8(byte)
+#define CONSOLE_CRIT_TX_HEX32(lword)
+#define CONSOLE_CRIT_INLINE_TX_HEX32(lword)
+#define CONSOLE_CRIT_TX_STRING(string)
+#define CONSOLE_CRIT_INLINE_TX_STRING(string)
+#endif
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_ERR
+#undef CONSOLE_ERR_TX_CHAR
+#undef CONSOLE_ERR_INLINE_TX_CHAR
+#undef CONSOLE_ERR_TX_HEX8
+#undef CONSOLE_ERR_INLINE_TX_HEX8
+#undef CONSOLE_ERR_TX_HEX32
+#undef CONSOLE_ERR_INLINE_TX_HEX32
+#undef CONSOLE_ERR_TX_STRING
+#undef CONSOLE_ERR_INLINE_TX_STRING
+#define CONSOLE_ERR_TX_CHAR(byte)
+#define CONSOLE_ERR_INLINE_TX_CHAR(byte)
+#define CONSOLE_ERR_TX_HEX8(byte)
+#define CONSOLE_ERR_INLINE_TX_HEX8(byte)
+#define CONSOLE_ERR_TX_HEX32(lword)
+#define CONSOLE_ERR_INLINE_TX_HEX32(lword)
+#define CONSOLE_ERR_TX_STRING(string)
+#define CONSOLE_ERR_INLINE_TX_STRING(string)
+#endif
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_WARNING
+#undef CONSOLE_WARNING_TX_CHAR
+#undef CONSOLE_WARNING_INLINE_TX_CHAR
+#undef CONSOLE_WARNING_TX_HEX8
+#undef CONSOLE_WARNING_INLINE_TX_HEX8
+#undef CONSOLE_WARNING_TX_HEX32
+#undef CONSOLE_WARNING_INLINE_TX_HEX32
+#undef CONSOLE_WARNING_TX_STRING
+#undef CONSOLE_WARNING_INLINE_TX_STRING
+#define CONSOLE_WARNING_TX_CHAR(byte)
+#define CONSOLE_WARNING_INLINE_TX_CHAR(byte)
+#define CONSOLE_WARNING_TX_HEX8(byte)
+#define CONSOLE_WARNING_INLINE_TX_HEX8(byte)
+#define CONSOLE_WARNING_TX_HEX32(lword)
+#define CONSOLE_WARNING_INLINE_TX_HEX32(lword)
+#define CONSOLE_WARNING_TX_STRING(string)
+#define CONSOLE_WARNING_INLINE_TX_STRING(string)
+#endif
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_NOTICE
+#undef CONSOLE_NOTICE_TX_CHAR
+#undef CONSOLE_NOTICE_INLINE_TX_CHAR
+#undef CONSOLE_NOTICE_TX_HEX8
+#undef CONSOLE_NOTICE_INLINE_TX_HEX8
+#undef CONSOLE_NOTICE_TX_HEX32
+#undef CONSOLE_NOTICE_INLINE_TX_HEX32
+#undef CONSOLE_NOTICE_TX_STRING
+#undef CONSOLE_NOTICE_INLINE_TX_STRING
+#define CONSOLE_NOTICE_TX_CHAR(byte)
+#define CONSOLE_NOTICE_INLINE_TX_CHAR(byte)
+#define CONSOLE_NOTICE_TX_HEX8(byte)
+#define CONSOLE_NOTICE_INLINE_TX_HEX8(byte)
+#define CONSOLE_NOTICE_TX_HEX32(lword)
+#define CONSOLE_NOTICE_INLINE_TX_HEX32(lword)
+#define CONSOLE_NOTICE_TX_STRING(string)
+#define CONSOLE_NOTICE_INLINE_TX_STRING(string)
+#endif
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_INFO
+#undef CONSOLE_INFO_TX_CHAR
+#undef CONSOLE_INFO_INLINE_TX_CHAR
+#undef CONSOLE_INFO_TX_HEX8
+#undef CONSOLE_INFO_INLINE_TX_HEX8
+#undef CONSOLE_INFO_TX_HEX32
+#undef CONSOLE_INFO_INLINE_TX_HEX32
+#undef CONSOLE_INFO_TX_STRING
+#undef CONSOLE_INFO_INLINE_TX_STRING
+#define CONSOLE_INFO_TX_CHAR(byte)
+#define CONSOLE_INFO_INLINE_TX_CHAR(byte)
+#define CONSOLE_INFO_TX_HEX8(byte)
+#define CONSOLE_INFO_INLINE_TX_HEX8(byte)
+#define CONSOLE_INFO_TX_HEX32(lword)
+#define CONSOLE_INFO_INLINE_TX_HEX32(lword)
+#define CONSOLE_INFO_TX_STRING(string)
+#define CONSOLE_INFO_INLINE_TX_STRING(string)
+#endif
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_DEBUG
+#undef CONSOLE_DEBUG_TX_CHAR
+#undef CONSOLE_DEBUG_INLINE_TX_CHAR
+#undef CONSOLE_DEBUG_TX_HEX8
+#undef CONSOLE_DEBUG_INLINE_TX_HEX8
+#undef CONSOLE_DEBUG_TX_HEX32
+#undef CONSOLE_DEBUG_INLINE_TX_HEX32
+#undef CONSOLE_DEBUG_TX_STRING
+#undef CONSOLE_DEBUG_INLINE_TX_STRING
+#define CONSOLE_DEBUG_TX_CHAR(byte)
+#define CONSOLE_DEBUG_INLINE_TX_CHAR(byte)
+#define CONSOLE_DEBUG_TX_HEX8(byte)
+#define CONSOLE_DEBUG_INLINE_TX_HEX8(byte)
+#define CONSOLE_DEBUG_TX_HEX32(lword)
+#define CONSOLE_DEBUG_INLINE_TX_HEX32(lword)
+#define CONSOLE_DEBUG_TX_STRING(string)
+#define CONSOLE_DEBUG_INLINE_TX_STRING(string)
+#endif
+
+#if ASM_CONSOLE_LOGLEVEL <= BIOS_SPEW
+#undef CONSOLE_SPEW_TX_CHAR
+#undef CONSOLE_SPEW_INLINE_TX_CHAR
+#undef CONSOLE_SPEW_TX_HEX8
+#undef CONSOLE_SPEW_INLINE_TX_HEX8
+#undef CONSOLE_SPEW_TX_HEX32
+#undef CONSOLE_SPEW_INLINE_TX_HEX32
+#undef CONSOLE_SPEW_TX_STRING
+#undef CONSOLE_SPEW_INLINE_TX_STRING
+#define CONSOLE_SPEW_TX_CHAR(byte)
+#define CONSOLE_SPEW_INLINE_TX_CHAR(byte)
+#define CONSOLE_SPEW_TX_HEX8(byte)
+#define CONSOLE_SPEW_INLINE_TX_HEX8(byte)
+#define CONSOLE_SPEW_TX_HEX32(lword)
+#define CONSOLE_SPEW_INLINE_TX_HEX32(lword)
+#define CONSOLE_SPEW_TX_STRING(string)
+#define CONSOLE_SPEW_INLINE_TX_STRING(string)
+#endif
+
+
+ /* uses: esp, ax, dx */
+console_tx_al:
+ __CONSOLE_INLINE_TX_AL
+ RETSP
+
+ /* uses: esp, ax, edx */
+console_tx_hex8:
+ __CONSOLE_INLINE_TX_HEX8(%al)
+ RETSP
+
+
+ /* uses: esp, ebx, eax, dx */
+console_tx_hex32:
+ mov %eax, %ebx
+ shr $28, %eax
+ add $'0', %al
+ cmp $'9', %al
+ jle 9f
+ add $39, %al
+9:
+ __CONSOLE_INLINE_TX_AL
+
+ mov %ebx, %eax
+ shr $24, %eax
+ and $0x0f, %al
+ add $'0', %al
+ cmp $'9', %al
+ jle 9f
+ add $39, %al
+9:
+ __CONSOLE_INLINE_TX_AL
+
+ mov %ebx, %eax
+ shr $20, %eax
+ and $0x0f, %al
+ add $'0', %al
+ cmp $'9', %al
+ jle 9f
+ add $39, %al
+9:
+ __CONSOLE_INLINE_TX_AL
+
+ mov %ebx, %eax
+ shr $16, %eax
+ and $0x0f, %al
+ add $'0', %al
+ cmp $'9', %al
+ jle 9f
+ add $39, %al
+9:
+ __CONSOLE_INLINE_TX_AL
+
+ mov %ebx, %eax
+ shr $12, %eax
+ and $0x0f, %al
+ add $'0', %al
+ cmp $'9', %al
+ jle 9f
+ add $39, %al
+9:
+ __CONSOLE_INLINE_TX_AL
+
+ mov %ebx, %eax
+ shr $8, %eax
+ and $0x0f, %al
+ add $'0', %al
+ cmp $'9', %al
+ jle 9f
+ add $39, %al
+9:
+ __CONSOLE_INLINE_TX_AL
+
+ mov %ebx, %eax
+ shr $4, %eax
+ and $0x0f, %al
+ add $'0', %al
+ cmp $'9', %al
+ jle 9f
+ add $39, %al
+9:
+ __CONSOLE_INLINE_TX_AL
+
+ mov %ebx, %eax
+ and $0x0f, %al
+ add $'0', %al
+ cmp $'9', %al
+ jle 9f
+ add $39, %al
+9:
+ __CONSOLE_INLINE_TX_AL
+ RETSP
+
+ /* Uses esp, ebx, ax, dx */
+
+console_tx_string:
+ mov (%ebx), %al
+ inc %ebx
+ cmp $0, %al
+ jne 9f
+ RETSP
+9:
+ __CONSOLE_INLINE_TX_AL
+ jmp console_tx_string
+
+console0:
+ CONSOLE_INFO_TX_STRING($console_test)
+
diff --git a/src/arch/i386/lib/cpu.c b/src/arch/i386/lib/cpu.c
new file mode 100644
index 0000000000..3e27e7acdc
--- /dev/null
+++ b/src/arch/i386/lib/cpu.c
@@ -0,0 +1,139 @@
+#include <console/console.h>
+#include <cpu/cpu.h>
+#include <mem.h>
+#include <arch/io.h>
+#include <string.h>
+#include <cpu/cpufixup.h>
+#include <smp/start_stop.h>
+#include <cpu/cpufixup.h>
+#include <cpu/p6/mtrr.h>
+#include <cpu/p6/msr.h>
+#include <cpu/p6/apic.h>
+#include <cpu/p5/cpuid.h>
+#if 0
+#include <cpu/l2_cache.h>
+#endif
+
+#if CONFIG_SMP || CONFIG_IOAPIC
+#define APIC 1
+#endif
+
+static void cache_on(struct mem_range *mem)
+{
+ post_code(0x60);
+ printk_info("Enabling cache...");
+
+
+ /* we need an #ifdef i586 here at some point ... */
+ __asm__ __volatile__("mov %cr0, %eax\n\t"
+ "and $0x9fffffff,%eax\n\t"
+ "mov %eax, %cr0\n\t");
+ /* turns out cache isn't really on until you set MTRR registers on
+ * 686 and later.
+ * NOTHING FANCY. Linux does a much better job anyway.
+ * so absolute minimum needed to get it going.
+ */
+ /* OK, linux it turns out does nothing. We have to do it ... */
+#if defined(i686)
+ // totalram here is in linux sizing, i.e. units of KB.
+ // set_mtrr is responsible for getting it into the right units!
+ setup_mtrrs(mem);
+#endif
+
+ post_code(0x6A);
+ printk_info("done.\n");
+}
+
+static void interrupts_on()
+{
+ /* this is so interrupts work. This is very limited scope --
+ * linux will do better later, we hope ...
+ */
+ /* this is the first way we learned to do it. It fails on real SMP
+ * stuff. So we have to do things differently ...
+ * see the Intel mp1.4 spec, page A-3
+ */
+
+#if defined(APIC)
+ /* Only Pentium Pro and later have those MSR stuff */
+ unsigned long low, high;
+
+ printk_info("Setting up local apic...");
+
+ /* Enable the local apic */
+ rdmsr(APIC_BASE_MSR, low, high);
+ low |= APIC_BASE_MSR_ENABLE;
+ low &= ~APIC_BASE_MSR_ADDR_MASK;
+ low |= APIC_DEFAULT_BASE;
+ wrmsr(APIC_BASE_MSR, low, high);
+
+
+ /* Put the local apic in virtual wire mode */
+ apic_write_around(APIC_SPIV,
+ (apic_read_around(APIC_SPIV) & ~(APIC_VECTOR_MASK))
+ | APIC_SPIV_ENABLE);
+ apic_write_around(APIC_LVT0,
+ (apic_read_around(APIC_LVT0) &
+ ~(APIC_LVT_MASKED | APIC_LVT_LEVEL_TRIGGER |
+ APIC_LVT_REMOTE_IRR | APIC_INPUT_POLARITY |
+ APIC_SEND_PENDING |APIC_LVT_RESERVED_1 |
+ APIC_DELIVERY_MODE_MASK))
+ | (APIC_LVT_REMOTE_IRR |APIC_SEND_PENDING |
+ APIC_DELIVERY_MODE_EXTINT)
+ );
+ apic_write_around(APIC_LVT1,
+ (apic_read_around(APIC_LVT1) &
+ ~(APIC_LVT_MASKED | APIC_LVT_LEVEL_TRIGGER |
+ APIC_LVT_REMOTE_IRR | APIC_INPUT_POLARITY |
+ APIC_SEND_PENDING |APIC_LVT_RESERVED_1 |
+ APIC_DELIVERY_MODE_MASK))
+ | (APIC_LVT_REMOTE_IRR |APIC_SEND_PENDING |
+ APIC_DELIVERY_MODE_NMI)
+ );
+#else /* APIC */
+#ifdef i686
+ /* Only Pentium Pro and later have those MSR stuff */
+ unsigned long low, high;
+
+ printk_info("Disabling local apic...");
+
+ rdmsr(APIC_BASE_MSR, low, high);
+ low &= ~APIC_BASE_MSR_ENABLE;
+ wrmsr(APIC_BASE_MSR, low, high);
+#endif /* i686 */
+#endif /* APIC */
+ printk_info("done.\n");
+ post_code(0x9b);
+}
+
+unsigned long cpu_initialize(struct mem_range *mem)
+{
+ /* Because we busy wait at the printk spinlock.
+ * It is important to keep the number of printed messages
+ * from secondary cpus to a minimum, when debugging is
+ * disabled.
+ */
+ unsigned long processor_id = this_processors_id();
+ printk_notice("Initializing CPU #%d\n", processor_id);
+
+ /* some cpus need a fixup done. This is the hook for doing that. */
+ cpufixup(mem);
+
+ /* Turn on caching if we haven't already */
+ cache_on(mem);
+
+ display_cpuid();
+ mtrr_check();
+
+#if 0
+ /* now that everything is really up, enable the l2 cache if desired.
+ * The enable can wait until this point, because linuxbios and it's
+ * data areas are tiny, easily fitting into the L1 cache.
+ */
+ configure_l2_cache();
+#endif
+ interrupts_on();
+ printk_info("CPU #%d Initialized\n", processor_id);
+ return processor_id;
+}
+
diff --git a/src/arch/i386/lib/cpu_reset.inc b/src/arch/i386/lib/cpu_reset.inc
new file mode 100644
index 0000000000..c7c05e2198
--- /dev/null
+++ b/src/arch/i386/lib/cpu_reset.inc
@@ -0,0 +1,9 @@
+jmp cpu_reset_out
+
+__cpu_reset:
+ movl $0xffffffff, %ebp
+ jmp __main
+
+cpu_reset_out:
+
+
diff --git a/src/arch/i386/lib/failover.lds b/src/arch/i386/lib/failover.lds
new file mode 100644
index 0000000000..c9cf7298f8
--- /dev/null
+++ b/src/arch/i386/lib/failover.lds
@@ -0,0 +1 @@
+ __normal_image = (ZKERNEL_START & 0xfffffff0) - 8;
diff --git a/src/arch/i386/lib/id.inc b/src/arch/i386/lib/id.inc
new file mode 100644
index 0000000000..f28e23a2e8
--- /dev/null
+++ b/src/arch/i386/lib/id.inc
@@ -0,0 +1,21 @@
+ .section ".id", "a", @progbits
+
+#define __STR(X) #X
+#define STR(X) __STR(X)
+
+ .globl __id_start
+__id_start:
+vendor:
+ .asciz STR(MAINBOARD_VENDOR)
+part:
+ .asciz STR(MAINBOARD_PART_NUMBER)
+.long __id_end + 0x10 - vendor /* Reverse offset to the vendor id */
+.long __id_end + 0x10 - part /* Reverse offset to the part number */
+.long PAYLOAD_SIZE + ROM_IMAGE_SIZE /* Size of this romimage */
+ .globl __id_end
+
+#undef __STR
+#undef STR
+
+__id_end:
+.previous
diff --git a/src/arch/i386/lib/id.lds b/src/arch/i386/lib/id.lds
new file mode 100644
index 0000000000..ccdf7008f7
--- /dev/null
+++ b/src/arch/i386/lib/id.lds
@@ -0,0 +1,6 @@
+SECTIONS {
+ . = (_ROMBASE + ROM_IMAGE_SIZE - 0x10) - (__id_end - __id_start);
+ .id (.): {
+ *(.id)
+ }
+}
diff --git a/src/arch/i386/lib/noop_failover.inc b/src/arch/i386/lib/noop_failover.inc
new file mode 100644
index 0000000000..70c10b0d3e
--- /dev/null
+++ b/src/arch/i386/lib/noop_failover.inc
@@ -0,0 +1,9 @@
+/* Step 1: Test for cpu reset
+ * That is, did I just boot or is this a later boot since power on.
+ * The result of this test in %al
+ * %al == 1 -- We are rebooting
+ * %al == 0 -- This is the initial boot
+ *
+ */
+ testb %al, %al
+ jnz __cpu_reset
diff --git a/src/arch/i386/lib/pci_ops.c b/src/arch/i386/lib/pci_ops.c
new file mode 100644
index 0000000000..80921bf9da
--- /dev/null
+++ b/src/arch/i386/lib/pci_ops.c
@@ -0,0 +1,281 @@
+#include <console/console.h>
+#include <arch/io.h>
+#include <arch/pciconf.h>
+#include <pci.h>
+#include <pci_ids.h>
+#include <pci_ops.h>
+
+static const struct pci_ops *conf;
+struct pci_ops {
+ int (*read_byte) (uint8_t bus, int devfn, int where, uint8_t * val);
+ int (*read_word) (uint8_t bus, int devfn, int where, uint16_t * val);
+ int (*read_dword) (uint8_t bus, int devfn, int where, uint32_t * val);
+ int (*write_byte) (uint8_t bus, int devfn, int where, uint8_t val);
+ int (*write_word) (uint8_t bus, int devfn, int where, uint16_t val);
+ int (*write_dword) (uint8_t bus, int devfn, int where, uint32_t val);
+};
+
+/*
+ * Direct access to PCI hardware...
+ */
+
+
+/*
+ * Functions for accessing PCI configuration space with type 1 accesses
+ */
+
+#define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | (devfn << 8) | (where & ~3))
+
+static int pci_conf1_read_config_byte(unsigned char bus, int devfn, int where, uint8_t * value)
+{
+ outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
+ *value = inb(0xCFC + (where & 3));
+ return 0;
+}
+
+static int pci_conf1_read_config_word(unsigned char bus, int devfn, int where, uint16_t * value)
+{
+ outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
+ *value = inw(0xCFC + (where & 2));
+ return 0;
+}
+
+static int pci_conf1_read_config_dword(unsigned char bus, int devfn, int where, uint32_t * value)
+{
+ outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
+ *value = inl(0xCFC);
+ return 0;
+}
+
+static int pci_conf1_write_config_byte(unsigned char bus, int devfn, int where, uint8_t value)
+{
+ outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
+ outb(value, 0xCFC + (where & 3));
+ return 0;
+}
+
+static int pci_conf1_write_config_word(unsigned char bus, int devfn, int where, uint16_t value)
+{
+ outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
+ outw(value, 0xCFC + (where & 2));
+ return 0;
+}
+
+static int pci_conf1_write_config_dword(unsigned char bus, int devfn, int where, uint32_t value)
+{
+ outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
+ outl(value, 0xCFC);
+ return 0;
+}
+
+#undef CONFIG_CMD
+
+static const struct pci_ops pci_direct_conf1 =
+{
+ pci_conf1_read_config_byte,
+ pci_conf1_read_config_word,
+ pci_conf1_read_config_dword,
+ pci_conf1_write_config_byte,
+ pci_conf1_write_config_word,
+ pci_conf1_write_config_dword
+};
+
+/*
+ * Functions for accessing PCI configuration space with type 2 accesses
+ */
+
+#define IOADDR(devfn, where) ((0xC000 | ((devfn & 0x78) << 5)) + where)
+#define FUNC(devfn) (((devfn & 7) << 1) | 0xf0)
+#define SET(bus,devfn) if (devfn & 0x80) return -1;outb(FUNC(devfn), 0xCF8); outb(bus, 0xCFA);
+
+static int pci_conf2_read_config_byte(unsigned char bus, int devfn, int where, uint8_t * value)
+{
+ SET(bus, devfn);
+ *value = inb(IOADDR(devfn, where));
+ outb(0, 0xCF8);
+ return 0;
+}
+
+static int pci_conf2_read_config_word(unsigned char bus, int devfn, int where, uint16_t * value)
+{
+ SET(bus, devfn);
+ *value = inw(IOADDR(devfn, where));
+ outb(0, 0xCF8);
+ return 0;
+}
+
+static int pci_conf2_read_config_dword(unsigned char bus, int devfn, int where, uint32_t * value)
+{
+ SET(bus, devfn);
+ *value = inl(IOADDR(devfn, where));
+ outb(0, 0xCF8);
+ return 0;
+}
+
+static int pci_conf2_write_config_byte(unsigned char bus, int devfn, int where, uint8_t value)
+{
+ SET(bus, devfn);
+ outb(value, IOADDR(devfn, where));
+ outb(0, 0xCF8);
+ return 0;
+}
+
+static int pci_conf2_write_config_word(unsigned char bus, int devfn, int where, uint16_t value)
+{
+ SET(bus, devfn);
+ outw(value, IOADDR(devfn, where));
+ outb(0, 0xCF8);
+ return 0;
+}
+
+static int pci_conf2_write_config_dword(unsigned char bus, int devfn, int where, uint32_t value)
+{
+ SET(bus, devfn);
+ outl(value, IOADDR(devfn, where));
+ outb(0, 0xCF8);
+ return 0;
+}
+
+#undef SET
+#undef IOADDR
+#undef FUNC
+
+static const struct pci_ops pci_direct_conf2 =
+{
+ pci_conf2_read_config_byte,
+ pci_conf2_read_config_word,
+ pci_conf2_read_config_dword,
+ pci_conf2_write_config_byte,
+ pci_conf2_write_config_word,
+ pci_conf2_write_config_dword
+};
+
+/*
+ * Before we decide to use direct hardware access mechanisms, we try to do some
+ * trivial checks to ensure it at least _seems_ to be working -- we just test
+ * whether bus 00 contains a host bridge (this is similar to checking
+ * techniques used in XFree86, but ours should be more reliable since we
+ * attempt to make use of direct access hints provided by the PCI BIOS).
+ *
+ * This should be close to trivial, but it isn't, because there are buggy
+ * chipsets (yes, you guessed it, by Intel and Compaq) that have no class ID.
+ */
+static int pci_sanity_check(const struct pci_ops *o)
+{
+ uint16_t x;
+ uint8_t bus;
+ int devfn;
+#define PCI_CLASS_BRIDGE_HOST 0x0600
+#define PCI_CLASS_DISPLAY_VGA 0x0300
+#define PCI_VENDOR_ID_COMPAQ 0x0e11
+#define PCI_VENDOR_ID_INTEL 0x8086
+#define PCI_VENDOR_ID_MOTOROLA 0x1057
+
+ for (bus = 0, devfn = 0; devfn < 0x100; devfn++)
+ if ((!o->read_word(bus, devfn, PCI_CLASS_DEVICE, &x) &&
+ (x == PCI_CLASS_BRIDGE_HOST || x == PCI_CLASS_DISPLAY_VGA)) ||
+ (!o->read_word(bus, devfn, PCI_VENDOR_ID, &x) &&
+ (x == PCI_VENDOR_ID_INTEL || x == PCI_VENDOR_ID_COMPAQ || x == PCI_VENDOR_ID_MOTOROLA)))
+ return 1;
+ printk_err("PCI: Sanity check failed\n");
+ return 0;
+}
+
+static const struct pci_ops *pci_check_direct(void)
+{
+ unsigned int tmp;
+
+ /*
+ * Check if configuration type 1 works.
+ */
+ {
+ outb(0x01, 0xCFB);
+ tmp = inl(0xCF8);
+ outl(0x80000000, 0xCF8);
+ if (inl(0xCF8) == 0x80000000 &&
+ pci_sanity_check(&pci_direct_conf1)) {
+ outl(tmp, 0xCF8);
+ printk_debug("PCI: Using configuration type 1\n");
+ return &pci_direct_conf1;
+ }
+ outl(tmp, 0xCF8);
+ }
+
+ /*
+ * Check if configuration type 2 works.
+ */
+ {
+ outb(0x00, 0xCFB);
+ outb(0x00, 0xCF8);
+ outb(0x00, 0xCFA);
+ if (inb(0xCF8) == 0x00 && inb(0xCFA) == 0x00 &&
+ pci_sanity_check(&pci_direct_conf2)) {
+ printk_debug("PCI: Using configuration type 2\n");
+ return &pci_direct_conf2;
+ }
+ }
+
+ printk_debug("pci_check_direct failed\n");
+
+ return 0;
+}
+
+int pci_read_config_byte(struct device *dev, uint8_t where, uint8_t * val)
+{
+ int res;
+ res = conf->read_byte(dev->bus->secondary, dev->devfn, where, val);
+ printk_spew("Read config byte bus %d,devfn 0x%x,reg 0x%x,val 0x%x,res 0x%x\n",
+ dev->bus->secondary, dev->devfn, where, *val, res);
+ return res;
+
+
+}
+
+int pci_read_config_word(struct device *dev, uint8_t where, uint16_t * val)
+{
+ int res;
+ res = conf->read_word(dev->bus->secondary, dev->devfn, where, val);
+ printk_spew( "Read config word bus %d,devfn 0x%x,reg 0x%x,val 0x%x,res 0x%x\n",
+ dev->bus->secondary, dev->devfn, where, *val, res);
+ return res;
+}
+
+int pci_read_config_dword(struct device *dev, uint8_t where, uint32_t * val)
+{
+ int res;
+ res = conf->read_dword(dev->bus->secondary, dev->devfn, where, val);
+ printk_spew( "Read config dword bus %d,devfn 0x%x,reg 0x%x,val 0x%x,res 0x%x\n",
+ dev->bus->secondary, dev->devfn, where, *val, res);
+ return res;
+}
+
+int pci_write_config_byte(struct device *dev, uint8_t where, uint8_t val)
+{
+ printk_spew( "Write config byte bus %d, devfn 0x%x, reg 0x%x, val 0x%x\n",
+ dev->bus->secondary, dev->devfn, where, val);
+ return conf->write_byte(dev->bus->secondary, dev->devfn, where, val);
+}
+
+int pci_write_config_word(struct device *dev, uint8_t where, uint16_t val)
+{
+ printk_spew( "Write config word bus %d, devfn 0x%x, reg 0x%x, val 0x%x\n",
+ dev->bus->secondary, dev->devfn, where, val);
+ return conf->write_word(dev->bus->secondary, dev->devfn, where, val);
+}
+
+int pci_write_config_dword(struct device *dev, uint8_t where, uint32_t val)
+{
+ printk_spew( "Write config dword bus %d, devfn 0x%x, reg 0x%x, val 0x%x\n",
+ dev->bus->secondary, dev->devfn, where, val);
+ return conf->write_dword(dev->bus->secondary, dev->devfn, where, val);
+}
+
+/** Set the method to be used for PCI, type I or type II
+ */
+void pci_set_method(void)
+{
+ conf = &pci_direct_conf1;
+ conf = pci_check_direct();
+}
+
+