Fix the indent and whitespace to match LinuxBIOS standards
Signed-off-by: Jordan Crouse <[EMAIL PROTECTED]>
Index: LinuxBIOSv2/src/cpu/amd/model_lx/cpubug.c
===================================================================
--- LinuxBIOSv2.orig/src/cpu/amd/model_lx/cpubug.c 2007-05-04
12:58:36.000000000 -0600
+++ LinuxBIOSv2/src/cpu/amd/model_lx/cpubug.c 2007-05-04 12:58:48.000000000
-0600
@@ -30,7 +30,6 @@
#include <cpu/x86/msr.h>
#include <cpu/amd/lxdef.h>
-
/**************************************************************************
*
* pcideadlock
@@ -40,27 +39,27 @@
* There is also fix code in cache and PCI functions. This bug is very is
pervasive.
*
**************************************************************************/
-static void pcideadlock(void){
+static void pcideadlock(void)
+{
msr_t msr;
/*
* forces serialization of all load misses. Setting this bit prevents
the
* DM pipe from backing up if a read request has to be held up waiting
* for PCI writes to complete.
- */
+ */
msr = rdmsr(CPU_DM_CONFIG0);
msr.lo |= DM_CONFIG0_LOWER_MISSER_SET;
wrmsr(CPU_DM_CONFIG0, msr);
-
/* write serialize memory hole to PCI. Need to unWS when something is
* shadowed regardless of cachablility.
*/
msr.lo = 0x021212121;
msr.hi = 0x021212121;
- wrmsr( CPU_RCONF_A0_BF, msr);
- wrmsr( CPU_RCONF_C0_DF, msr);
- wrmsr( CPU_RCONF_E0_FF, msr);
+ wrmsr(CPU_RCONF_A0_BF, msr);
+ wrmsr(CPU_RCONF_C0_DF, msr);
+ wrmsr(CPU_RCONF_E0_FF, msr);
}
/****************************************************************************/
@@ -74,17 +73,19 @@
/** to maintain coherency with and the cache is not enabled yet.*/
/***/
/****************************************************************************/
-static void disablememoryreadorder(void){
+static void disablememoryreadorder(void)
+{
msr_t msr;
msr = rdmsr(MC_CF8F_DATA);
- msr.hi |= CF8F_UPPER_REORDER_DIS_SET;
+ msr.hi |= CF8F_UPPER_REORDER_DIS_SET;
wrmsr(MC_CF8F_DATA, msr);
}
/* For cpu version C3. Should be the only released version */
-void cpubug(void) {
- pcideadlock();
+void cpubug(void)
+{
+ pcideadlock();
disablememoryreadorder();
printk_debug("Done cpubug fixes \n");
}
Index: LinuxBIOSv2/src/cpu/amd/model_lx/cpureginit.c
===================================================================
--- LinuxBIOSv2.orig/src/cpu/amd/model_lx/cpureginit.c 2007-05-04
12:58:36.000000000 -0600
+++ LinuxBIOSv2/src/cpu/amd/model_lx/cpureginit.c 2007-05-04
12:58:48.000000000 -0600
@@ -25,7 +25,8 @@
;* SetDelayControl
;*
;*************************************************************************/
-void SetDelayControl(void){
+void SetDelayControl(void)
+{
unsigned int msrnum, glspeed;
unsigned char spdbyte0, spdbyte1;
msr_t msr;
@@ -37,7 +38,7 @@
msr.hi = 0;
msr.lo = 0x2814D352;
wrmsr(msrnum, msr);
-
+
msrnum = CPU_BC_MSS_ARRAY_CTL1;
msr.hi = 0;
msr.lo = 0x1068334D;
@@ -46,8 +47,8 @@
msrnum = CPU_BC_MSS_ARRAY_CTL2;
msr.hi = 0x00000106;
msr.lo = 0x83104104;
- wrmsr(msrnum,msr);
-
+ wrmsr(msrnum, msr);
+
msrnum = GLCP_FIFOCTL;
msr = rdmsr(msrnum);
msr.hi = 0x00000005;
@@ -59,39 +60,37 @@
msr.lo = 0x00000001;
wrmsr(msrnum, msr);
-
/* Debug Delay Control Setup Check
- Leave it alone if it has been setup. FS2 or something is here.*/
+ Leave it alone if it has been setup. FS2 or something is here. */
msrnum = GLCP_DELAY_CONTROLS;
msr = rdmsr(msrnum);
- if (msr.lo & ~(0x7C0)){
+ if (msr.lo & ~(0x7C0)) {
return;
}
-
/*
- ; Delay Controls based on DIMM loading. UGH!
- ; # of Devices = Module Width (SPD6) / Device Width(SPD13) * Physical
Banks(SPD5)
- ; Note - We only support module width of 64.
- */
+ ; Delay Controls based on DIMM loading. UGH!
+ ; # of Devices = Module Width (SPD6) / Device Width(SPD13) *
Physical Banks(SPD5)
+ ; Note - We only support module width of 64.
+ */
spdbyte0 = spd_read_byte(DIMM0, SPD_PRIMARY_SDRAM_WIDTH);
- if (spdbyte0 !=0xFF){
- spdbyte0 = (unsigned char) 64/spdbyte0 * (unsigned char)
(spd_read_byte(DIMM0, SPD_NUM_DIMM_BANKS));
- }
- else{
- spdbyte0=0;
+ if (spdbyte0 != 0xFF) {
+ spdbyte0 =
+ (unsigned char)64 / spdbyte0 *
+ (unsigned char)(spd_read_byte(DIMM0, SPD_NUM_DIMM_BANKS));
+ } else {
+ spdbyte0 = 0;
}
spdbyte1 = spd_read_byte(DIMM1, SPD_PRIMARY_SDRAM_WIDTH);
- if (spdbyte1 !=0xFF){
- spdbyte1 = (unsigned char) 64/spdbyte1 * (unsigned char)
(spd_read_byte(DIMM1, SPD_NUM_DIMM_BANKS));
- }
- else{
- spdbyte1=0;
+ if (spdbyte1 != 0xFF) {
+ spdbyte1 =
+ (unsigned char)64 / spdbyte1 *
+ (unsigned char)(spd_read_byte(DIMM1, SPD_NUM_DIMM_BANKS));
+ } else {
+ spdbyte1 = 0;
}
-
-
/* The current thinking. Subject to change...
; "FUTURE
ROBUSTNESS" PROPOSAL
@@ -141,117 +140,104 @@
*/
msr.hi = msr.lo = 0;
- if (spdbyte0 == 0 || spdbyte1 == 0){
+ if (spdbyte0 == 0 || spdbyte1 == 0) {
/* one dimm solution */
- if (spdbyte1 == 0){
+ if (spdbyte1 == 0) {
msr.hi |= 0x000800000;
}
spdbyte0 += spdbyte1;
- if (spdbyte0 > 8){
+ if (spdbyte0 > 8) {
/* large dimm */
- if (glspeed < 334){
+ if (glspeed < 334) {
msr.hi |= 0x0837100AA;
msr.lo |= 0x056960004;
- }
- else{
+ } else {
msr.hi |= 0x082710055;
msr.lo |= 0x056960004;
}
- }
- else if (spdbyte0 > 4){
+ } else if (spdbyte0 > 4) {
/* medium dimm */
- if (glspeed < 334){
+ if (glspeed < 334) {
msr.hi |= 0x0837100AA;
msr.lo |= 0x056960004;
- }
- else{
+ } else {
msr.hi |= 0x0827100AA;
msr.lo |= 0x056960004;
}
- }
- else{
+ } else {
/* small dimm */
- if (glspeed < 334){
+ if (glspeed < 334) {
msr.hi |= 0x0837100FF;
msr.lo |= 0x056960004;
- }
- else{
+ } else {
msr.hi |= 0x0827100FF;
msr.lo |= 0x056960004;
}
}
- }
- else{
+ } else {
/* two dimm solution */
spdbyte0 += spdbyte1;
- if (spdbyte0 > 24){
+ if (spdbyte0 > 24) {
/* huge dimms */
- if (glspeed < 334){
+ if (glspeed < 334) {
msr.hi |= 0x0B37100A5;
msr.lo |= 0x056960004;
- }
- else{
+ } else {
msr.hi |= 0x0B2710000;
msr.lo |= 0x056960004;
}
- }
- else if (spdbyte0 > 16){
+ } else if (spdbyte0 > 16) {
/* large dimms */
- if (glspeed < 334){
+ if (glspeed < 334) {
msr.hi |= 0x0B37100A5;
msr.lo |= 0x056960004;
- }
- else{
+ } else {
msr.hi |= 0x0B27100A5;
msr.lo |= 0x056960004;
}
- }
- else if (spdbyte0 >= 8){
+ } else if (spdbyte0 >= 8) {
/* medium dimms */
- if (glspeed < 334){
+ if (glspeed < 334) {
msr.hi |= 0x0937100A5;
msr.lo |= 0x056960004;
- }
- else{
+ } else {
msr.hi |= 0x0C27100A5;
msr.lo |= 0x056960004;
}
- }
- else{
+ } else {
/* small dimms */
- if (glspeed < 334){
+ if (glspeed < 334) {
msr.hi |= 0x0837100A5;
msr.lo |= 0x056960004;
- }
- else{
+ } else {
msr.hi |= 0x082710000;
msr.lo |= 0x056960004;
}
}
}
- wrmsr(GLCP_DELAY_CONTROLS,msr);
+ wrmsr(GLCP_DELAY_CONTROLS, msr);
return;
}
/* ***************************************************************************/
/* * cpuRegInit*/
/* ***************************************************************************/
-void
-cpuRegInit (void){
+void cpuRegInit(void)
+{
int msrnum;
msr_t msr;
-
+
/* Castle 2.0 BTM periodic sync period. */
- /* [40:37] 1 sync record per 256 bytes */
+ /* [40:37] 1 sync record per 256 bytes */
msrnum = CPU_PF_CONF;
msr = rdmsr(msrnum);
msr.hi |= (0x8 << 5);
wrmsr(msrnum, msr);
/*
- ; Castle performance setting.
- ; Enable Quack for fewer re-RAS on the MC
- */
+ ; Castle performance setting.
+ ; Enable Quack for fewer re-RAS on the MC
+ */
msrnum = GLIU0_ARB;
msr = rdmsr(msrnum);
msr.hi &= ~ARB_UPPER_DACK_EN_SET;
@@ -264,7 +250,7 @@
msr.hi |= ARB_UPPER_QUACK_EN_SET;
wrmsr(msrnum, msr);
- /* GLIU port active enable, limit south pole masters (AES and PCI)
to one outstanding transaction. */
+ /* GLIU port active enable, limit south pole masters (AES and PCI)
to one outstanding transaction. */
msrnum = GLIU1_PORT_ACTIVE;
msr = rdmsr(msrnum);
msr.lo &= ~0x880;
@@ -277,32 +263,30 @@
msrnum = CPU_AC_SMM_CTL;
msr = rdmsr(msrnum);
msr.lo |= SMM_INST_EN_SET;
- wrmsr(msrnum, msr);
-
+ wrmsr(msrnum, msr);
/* FPU imprecise exceptions bit */
- msrnum = CPU_FPU_MSR_MODE;
- msr = rdmsr(msrnum);
- msr.lo |= FPU_IE_SET;
- wrmsr(msrnum, msr);
-
+ msrnum = CPU_FPU_MSR_MODE;
+ msr = rdmsr(msrnum);
+ msr.lo |= FPU_IE_SET;
+ wrmsr(msrnum, msr);
/* Power Savers (Do after BIST) */
- /* Enable Suspend on HLT & PAUSE instructions*/
+ /* Enable Suspend on HLT & PAUSE instructions */
msrnum = CPU_XC_CONFIG;
- msr = rdmsr(msrnum);
- msr.lo |= XC_CONFIG_SUSP_ON_HLT | XC_CONFIG_SUSP_ON_PAUSE;
- wrmsr(msrnum, msr);
+ msr = rdmsr(msrnum);
+ msr.lo |= XC_CONFIG_SUSP_ON_HLT | XC_CONFIG_SUSP_ON_PAUSE;
+ wrmsr(msrnum, msr);
/* Enable SUSP and allow TSC to run in Suspend (keep speed detection
happy) */
msrnum = CPU_BC_CONF_0;
- msr = rdmsr(msrnum);
+ msr = rdmsr(msrnum);
msr.lo |= TSC_SUSP_SET | SUSP_EN_SET;
msr.lo &= 0x0F0FFFFFF;
- msr.lo |= 0x002000000; /* PBZ213: Set PAUSEDLY = 2 */
- wrmsr(msrnum, msr);
+ msr.lo |= 0x002000000; /* PBZ213: Set PAUSEDLY = 2 */
+ wrmsr(msrnum, msr);
- /* Disable the debug clock to save power.*/
+ /* Disable the debug clock to save power. */
/* NOTE: leave it enabled for fs2 debug */
/* msrnum = GLCP_DBGCLKCTL;
msr.hi = 0;
@@ -314,5 +298,5 @@
msrnum = GLCP_TH_OD;
msr.hi = 0;
msr.lo = 0x00000603C;
- wrmsr(msrnum, msr);
- }
+ wrmsr(msrnum, msr);
+}
Index: LinuxBIOSv2/src/cpu/amd/model_lx/model_lx_init.c
===================================================================
--- LinuxBIOSv2.orig/src/cpu/amd/model_lx/model_lx_init.c 2007-05-04
12:58:36.000000000 -0600
+++ LinuxBIOSv2/src/cpu/amd/model_lx/model_lx_init.c 2007-05-04
12:58:48.000000000 -0600
@@ -33,12 +33,9 @@
static void vsm_end_post_smi(void)
{
- __asm__ volatile (
- "push %ax\n"
+ __asm__ volatile ("push %ax\n"
"mov $0x5000, %ax\n"
- ".byte 0x0f, 0x38\n"
- "pop %ax\n"
- );
+ ".byte 0x0f, 0x38\n" "pop %ax\n");
}
static void model_lx_init(device_t dev)
@@ -55,23 +52,23 @@
vsm_end_post_smi();
// Set gate A20 (legacy vsm disables it in late init)
- printk_debug("A20 (0x92): %d\n",inb(0x92));
- outb(0x02,0x92);
- printk_debug("A20 (0x92): %d\n",inb(0x92));
+ printk_debug("A20 (0x92): %d\n", inb(0x92));
+ outb(0x02, 0x92);
+ printk_debug("A20 (0x92): %d\n", inb(0x92));
printk_debug("CPU model_lx_init DONE\n");
};
static struct device_operations cpu_dev_ops = {
- .init = model_lx_init,
+ .init = model_lx_init,
};
static struct cpu_device_id cpu_table[] = {
- { X86_VENDOR_AMD, 0x05A2 },
- { 0, 0 },
+ {X86_VENDOR_AMD, 0x05A2},
+ {0, 0},
};
static struct cpu_driver driver __cpu_driver = {
- .ops = &cpu_dev_ops,
+ .ops = &cpu_dev_ops,
.id_table = cpu_table,
};
Index: LinuxBIOSv2/src/cpu/amd/model_lx/syspreinit.c
===================================================================
--- LinuxBIOSv2.orig/src/cpu/amd/model_lx/syspreinit.c 2007-05-04
12:58:36.000000000 -0600
+++ LinuxBIOSv2/src/cpu/amd/model_lx/syspreinit.c 2007-05-04
12:58:48.000000000 -0600
@@ -29,14 +29,14 @@
/* * Destroys: Al,*/
/* **/
/* ***************************************************************************/
-void
-StartTimer1(void){
+void StartTimer1(void)
+{
outb(0x56, 0x43);
outb(0x12, 0x41);
}
-void
-SystemPreInit(void){
+void SystemPreInit(void)
+{
/* they want a jump ... */
#ifndef USE_DCACHE_RAM
Index: LinuxBIOSv2/src/cpu/amd/model_lx/vsmsetup.c
===================================================================
--- LinuxBIOSv2.orig/src/cpu/amd/model_lx/vsmsetup.c 2007-05-04
12:58:36.000000000 -0600
+++ LinuxBIOSv2/src/cpu/amd/model_lx/vsmsetup.c 2007-05-04 13:01:05.000000000
-0600
@@ -74,8 +74,8 @@
*
*--------------------------------------------------------------------*/
-/* Modified to be a self sufficient plug in so that it can be used
- without reliance on other parts of core Linuxbios
+/* Modified to be a self sufficient plug in so that it can be used
+ without reliance on other parts of core Linuxbios
(C) 2005 [EMAIL PROTECTED]
Used initially for epia-m where there are problems getting the bios
@@ -84,172 +84,146 @@
/* Declare a temporary global descriptor table - necessary because the
Core part of the bios no longer sets up any 16 bit segments */
-__asm__ (
- /* pointer to original gdt */
- "gdtarg: \n"
- " .word gdt_limit \n"
- " .long gdt \n"
-
- /* compute the table limit */
- "__mygdt_limit = __mygdt_end - __mygdt - 1 \n"
-
- "__mygdtaddr: \n"
- " .word __mygdt_limit \n"
- " .long __mygdt \n"
-
- "__mygdt: \n"
- /* selgdt 0, unused */
- " .word 0x0000, 0x0000 \n"
- " .byte 0x00, 0x00, 0x00, 0x00 \n"
-
- /* selgdt 8, unused */
- " .word 0x0000, 0x0000 \n"
- " .byte 0x00, 0x00, 0x00, 0x00 \n"
-
- /* selgdt 0x10, flat code segment */
- " .word 0xffff, 0x0000 \n"
- " .byte 0x00, 0x9b, 0xcf, 0x00 \n"
-
- /* selgdt 0x18, flat data segment */
- " .word 0xffff, 0x0000 \n"
- " .byte 0x00, 0x93, 0xcf, 0x00 \n"
-
- /* selgdt 0x20, unused */
- " .word 0x0000, 0x0000 \n"
- " .byte 0x00, 0x00, 0x00, 0x00 \n"
-
- /* selgdt 0x28 16-bit 64k code at 0x00000000 */
- " .word 0xffff, 0x0000 \n"
- " .byte 0, 0x9a, 0, 0 \n"
-
- /* selgdt 0x30 16-bit 64k data at 0x00000000 */
- " .word 0xffff, 0x0000 \n"
- " .byte 0, 0x92, 0, 0 \n"
-
- "__mygdt_end: \n"
-);
+__asm__(
+ /* pointer to original gdt */
+ "gdtarg: \n"
+ " .word gdt_limit \n"
+ " .long gdt \n"
+ /* compute the table limit */
+ "__mygdt_limit = __mygdt_end - __mygdt - 1 \n"
+ "__mygdtaddr: \n"
+ " .word __mygdt_limit \n"
+ " .long __mygdt \n"
+ "__mygdt: \n"
+ /* selgdt 0, unused */
+ " .word 0x0000, 0x0000 \n"
+ " .byte 0x00, 0x00, 0x00, 0x00 \n"
+ /* selgdt 8, unused */
+ " .word 0x0000, 0x0000 \n"
+ " .byte 0x00, 0x00, 0x00, 0x00 \n"
+ /* selgdt 0x10, flat code segment */
+ " .word 0xffff, 0x0000 \n"
+ " .byte 0x00, 0x9b, 0xcf, 0x00 \n"
+ /* selgdt 0x18, flat data segment */
+ " .word 0xffff, 0x0000 \n"
+ " .byte 0x00, 0x93, 0xcf, 0x00 \n"
+ /* selgdt 0x20, unused */
+ " .word 0x0000, 0x0000 \n"
+ " .byte 0x00, 0x00, 0x00, 0x00 \n"
+ /* selgdt 0x28 16-bit 64k code at 0x00000000 */
+ " .word 0xffff, 0x0000 \n"
+ " .byte 0, 0x9a, 0, 0 \n"
+ /* selgdt 0x30 16-bit 64k data at 0x00000000 */
+ " .word 0xffff, 0x0000 \n"
+ " .byte 0, 0x92, 0, 0 \n"
+ "__mygdt_end: \n");
/* Declare a pointer to where our idt is going to be i.e. at mem zero */
-__asm__ ("__myidt: \n"
- /* 16-bit limit */
- " .word 1023 \n"
- /* 24-bit base */
- " .long 0 \n"
- " .word 0 \n"
-);
+__asm__("__myidt: \n"
+ /* 16-bit limit */
+ " .word 1023 \n"
+ /* 24-bit base */
+ " .long 0 \n" " .word 0 \n");
-/* The address arguments to this function are PHYSICAL ADDRESSES */
+/* The address arguments to this function are PHYSICAL ADDRESSES */
static void real_mode_switch_call_vsm(unsigned long smm, unsigned long sysm)
{
uint16_t entryHi = (VSA2_ENTRY_POINT & 0xffff0000) >> 4;
uint16_t entryLo = (VSA2_ENTRY_POINT & 0xffff);
- __asm__ __volatile__ (
- // paranoia -- does ecx get saved? not sure. This is
- // the easiest safe thing to do.
- " pushal \n"
- /* save the stack */
- " mov %%esp, __stack \n"
- " jmp 1f \n"
- "__stack: .long 0 \n"
- "1:\n"
- /* get devfn into %%ecx */
- " movl %%esp, %%ebp \n"
+ __asm__ __volatile__(
+ // paranoia -- does ecx get saved? not
sure. This is
+ // the easiest safe thing to do.
+ " pushal \n"
+ /* save the stack */
+ " mov %%esp, __stack \n"
+ " jmp 1f \n"
+ "__stack: .long 0 \n" "1:\n"
+ /* get devfn into %%ecx */
+ " movl %%esp, %%ebp \n"
#if 0
- /* I'm not happy about that pushal followed by esp-relative
references.
- * just do hard-codes for now
- */
- " movl 8(%%ebp), %%ecx \n"
- " movl 12(%%ebp), %%edx \n"
+ /* I'm not happy about that pushal followed
by esp-relative references.
+ * just do hard-codes for now
+ */
+ " movl 8(%%ebp), %%ecx \n"
+ " movl 12(%%ebp), %%edx \n"
#endif
- " movl %0, %%ecx \n"
- " movl %1, %%edx \n"
-
- /* load 'our' gdt */
- " lgdt %%cs:__mygdtaddr \n"
-
- /* This configures CS properly for real mode. */
- " ljmp $0x28, $__rms_16bit\n"
- "__rms_16bit: \n"
- " .code16 \n"
- /* 16 bit code from here on... */
-
- /* Load the segment registers w/ properly configured segment
- * descriptors. They will retain these configurations (limits,
- * writability, etc.) once protected mode is turned off. */
- " mov $0x30, %%ax \n"
- " mov %%ax, %%ds \n"
- " mov %%ax, %%es \n"
- " mov %%ax, %%fs \n"
- " mov %%ax, %%gs \n"
- " mov %%ax, %%ss \n"
-
- /* Turn off protection (bit 0 in CR0) */
- " movl %%cr0, %%eax \n"
- " andl $0xFFFFFFFE, %%eax \n"
- " movl %%eax, %%cr0 \n"
-
- /* Now really going into real mode */
- " ljmp $0, $__rms_real\n"
- "__rms_real: \n"
-
- /* put the stack at the end of page zero.
- * that way we can easily share it between real and protected,
- * since the 16-bit ESP at segment 0 will work for any case. */
- /* Setup a stack */
- " mov $0x0, %%ax \n"
- " mov %%ax, %%ss \n"
- " movl $0x1000, %%eax \n"
- " movl %%eax, %%esp \n"
-
- /* Load our 16 it idt */
- " xor %%ax, %%ax \n"
- " mov %%ax, %%ds \n"
- " lidt __myidt \n"
-
- /* Dump zeros in the other segregs */
- " mov %%ax, %%es \n"
- /* FixMe: Big real mode for gs, fs? */
- " mov %%ax, %%fs \n"
- " mov %%ax, %%gs \n"
- " mov $0x40, %%ax \n"
- " mov %%ax, %%ds \n"
- //" mov %%cx, %%ax \n"
- " movl %0, %%ecx \n"
- " movl %1, %%edx \n"
-
- /* call the VSA2 entry point address */
- " lcall %2, %3\n"
-
- /* if we got here, just about done.
- * Need to get back to protected mode */
- " movl %%cr0, %%eax \n"
- " orl $0x0000001, %%eax\n" /* PE = 1 */
- " movl %%eax, %%cr0 \n"
-
- /* Now that we are in protected mode jump to a 32 bit code
segment. */
- " data32 ljmp $0x10, $vsmrestart\n"
- "vsmrestart:\n"
- " .code32\n"
- " movw $0x18, %%ax \n"
- " mov %%ax, %%ds \n"
- " mov %%ax, %%es \n"
- " mov %%ax, %%fs \n"
- " mov %%ax, %%gs \n"
- " mov %%ax, %%ss \n"
-
- /* restore proper gdt and idt */
- " lgdt %%cs:gdtarg \n"
- " lidt idtarg \n"
-
- ".globl vsm_exit \n"
- "vsm_exit: \n"
- " mov __stack, %%esp \n"
- " popal \n"
- :: "g" (smm), "g" (sysm), "g" (entryHi), "g" (entryLo));
+ " movl %0, %%ecx \n"
+ " movl %1, %%edx \n"
+ /* load 'our' gdt */
+ " lgdt %%cs:__mygdtaddr \n"
+ /* This configures CS properly for real
mode. */
+ " ljmp $0x28, $__rms_16bit\n"
+ "__rms_16bit: \n"
+ " .code16 \n"
+ /* 16 bit code from here on... */
+ /* Load the segment registers w/ properly
configured segment
+ * descriptors. They will retain these
configurations (limits,
+ * writability, etc.) once protected mode
is turned off. */
+ " mov $0x30, %%ax \n"
+ " mov %%ax, %%ds \n"
+ " mov %%ax, %%es \n"
+ " mov %%ax, %%fs \n"
+ " mov %%ax, %%gs \n"
+ " mov %%ax, %%ss \n"
+ /* Turn off protection (bit 0 in CR0) */
+ " movl %%cr0, %%eax \n"
+ " andl $0xFFFFFFFE, %%eax \n"
+ " movl %%eax, %%cr0 \n"
+ /* Now really going into real mode */
+ " ljmp $0, $__rms_real\n"
+ "__rms_real: \n"
+ /* put the stack at the end of page zero.
+ * that way we can easily share it between
real and protected,
+ * since the 16-bit ESP at segment 0 will
work for any case. */
+ /* Setup a stack */
+ " mov $0x0, %%ax \n"
+ " mov %%ax, %%ss \n"
+ " movl $0x1000, %%eax \n"
+ " movl %%eax, %%esp \n"
+ /* Load our 16 it idt */
+ " xor %%ax, %%ax \n"
+ " mov %%ax, %%ds \n"
+ " lidt __myidt \n"
+ /* Dump zeros in the other segregs */
+ " mov %%ax, %%es \n"
+ /* FixMe: Big real mode for gs, fs? */
+ " mov %%ax, %%fs \n"
+ " mov %%ax, %%gs \n"
+ " mov $0x40, %%ax \n"
+ " mov %%ax, %%ds \n"
+ //" mov %%cx, %%ax \n"
+ " movl %0, %%ecx \n"
+ " movl %1, %%edx \n"
+ /* call the VSA2 entry point address */
+ " lcall %2, %3\n"
+ /* if we got here, just about done.
+ * Need to get back to protected mode */
+ " movl %%cr0, %%eax \n" " orl
$0x0000001, %%eax\n" /* PE = 1 */
+ " movl %%eax, %%cr0 \n"
+ /* Now that we are in protected mode jump
to a 32 bit code segment. */
+ " data32 ljmp $0x10, $vsmrestart\n"
+ "vsmrestart:\n"
+ " .code32\n"
+ " movw $0x18, %%ax \n"
+ " mov %%ax, %%ds \n"
+ " mov %%ax, %%es \n"
+ " mov %%ax, %%fs \n"
+ " mov %%ax, %%gs \n"
+ " mov %%ax, %%ss \n"
+ /* restore proper gdt and idt */
+ " lgdt %%cs:gdtarg \n"
+ " lidt idtarg \n"
+ ".globl vsm_exit \n"
+ "vsm_exit: \n"
+ " mov __stack, %%esp \n"
+ " popal \n"::
+ "g"
+ (smm),
+ "g"(sysm), "g"(entryHi), "g"(entryLo));
}
-__asm__ (".text\n""real_mode_switch_end:\n");
+__asm__(".text\n" "real_mode_switch_end:\n");
extern char real_mode_switch_end[];
// andrei: some VSA virtual register helpers: raw read and MSR read
@@ -257,17 +231,14 @@
uint32_t VSA_vrRead(uint16_t classIndex)
{
unsigned eax, ebx, ecx, edx;
- asm volatile(
-
- "movw $0x0AC1C, %%dx \n"
- "orl $0x0FC530000, %%eax \n"
- "outl %%eax, %%dx \n"
- "addb $2, %%dl \n"
- "inw %%dx, %%ax \n"
-
- : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
- : "a" (classIndex)
- );
+ asm volatile ("movw $0x0AC1C, %%dx \n"
+ "orl $0x0FC530000, %%eax \n"
+ "outl %%eax, %%dx \n"
+ "addb $2, %%dl \n"
+ "inw %%dx, %%ax \n":"=a"
+ (eax), "=b"(ebx), "=c"(ecx), "=d"(edx)
+ :"a"(classIndex)
+ );
return eax;
}
@@ -275,17 +246,14 @@
uint32_t VSA_msrRead(uint32_t msrAddr)
{
unsigned eax, ebx, ecx, edx;
- asm volatile(
-
- "movw $0x0AC1C, %%dx \n"
- "movl $0x0FC530007, %%eax \n"
- "outl %%eax, %%dx \n"
- "addb $2, %%dl \n"
- "inw %%dx, %%ax \n"
-
- : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
- : "c" (msrAddr)
- );
+ asm volatile ("movw $0x0AC1C, %%dx \n"
+ "movl $0x0FC530007, %%eax \n"
+ "outl %%eax, %%dx \n"
+ "addb $2, %%dl \n"
+ "inw %%dx, %%ax \n":"=a"
+ (eax), "=b"(ebx), "=c"(ecx), "=d"(edx)
+ :"c"(msrAddr)
+ );
return eax;
}
@@ -296,38 +264,38 @@
unsigned long busdevfn;
unsigned int rom = 0;
unsigned char *buf;
- unsigned int size = SMM_SIZE*1024;
+ unsigned int size = SMM_SIZE * 1024;
int i;
- unsigned long ilen, olen;
-
+ unsigned long ilen, olen;
+
printk_err("do_vsmbios\n");
/* clear vsm bios data area */
for (i = 0x400; i < 0x500; i++) {
- *(volatile unsigned char *) i = 0;
+ *(volatile unsigned char *)i = 0;
}
/* declare rom address here - keep any config data out of the way
* of core LXB stuff */
/* this is the base of rom on the LX at present. At some point, this
has to be
- * much better parameterized
- */
+ * much better parameterized
+ */
//rom = 0xfff80000;
//rom = 0xfffc0000;
/* the VSA starts at the base of rom - 64 */
//rom = ((unsigned long) 0) - (ROM_SIZE + 64*1024);
-
+
//rom = 0xfffc8000;
//VSA is cat onto the end after LB builds
- rom = ((unsigned long) 0) - (ROM_SIZE + 36 * 1024);
- buf = (unsigned char *) VSA2_BUFFER;
- olen = unrv2b((uint8_t *)rom, buf, &ilen);
+ rom = ((unsigned long)0) - (ROM_SIZE + 36 * 1024);
+ buf = (unsigned char *)VSA2_BUFFER;
+ olen = unrv2b((uint8_t *) rom, buf, &ilen);
printk_debug("buf ilen %d olen%d\n", ilen, olen);
printk_debug("buf %p *buf %d buf[256k] %d\n",
- buf, buf[0], buf[SMM_SIZE*1024]);
+ buf, buf[0], buf[SMM_SIZE * 1024]);
printk_debug("buf[0x20] signature is %x:%x:%x:%x\n",
- buf[0x20] ,buf[0x21] ,buf[0x22],buf[0x23]);
+ buf[0x20], buf[0x21], buf[0x22], buf[0x23]);
/* check for post code at start of vsainit.bin. If you don't see it,
don't bother. */
if ((buf[0x20] != 0xb0) || (buf[0x21] != 0x10) ||
@@ -335,11 +303,10 @@
printk_err("do_vsmbios: no vsainit.bin signature, skipping!\n");
return;
}
-
//memcpy((void *) VSA2_BUFFER, buf, size);
//for (i = 0; i < 0x800000; i++)
- // outb(0xaa, 0x80);
+ // outb(0xaa, 0x80);
/* ecx gets smm, edx gets sysm */
printk_err("Call real_mode_switch_call_vsm\n");
@@ -350,166 +317,148 @@
outb(0x12, 0x41);
// check that VSA is running OK
- if(VSA_vrRead(SIGNATURE) == VSA2_SIGNATURE)
+ if (VSA_vrRead(SIGNATURE) == VSA2_SIGNATURE)
printk_debug("do_vsmbios: VSA2 VR signature verified\n");
- else printk_err("do_vsmbios: VSA2 VR signature not valid, install
failed!\n");
+ else
+ printk_err
+ ("do_vsmbios: VSA2 VR signature not valid, install
failed!\n");
}
-
-// we had hoped to avoid this.
-// this is a stub IDT only. It's main purpose is to ignore calls
-// to the BIOS.
+// we had hoped to avoid this.
+// this is a stub IDT only. It's main purpose is to ignore calls
+// to the BIOS.
// no longer. Dammit. We have to respond to these.
struct realidt {
unsigned short offset, cs;
-};
+};
// from a handy writeup that andrey found.
-// handler.
-// There are some assumptions we can make here.
-// First, the Top Of Stack (TOS) is located on the top of page zero.
-// we can share this stack between real and protected mode.
+// handler.
+// There are some assumptions we can make here.
+// First, the Top Of Stack (TOS) is located on the top of page zero.
+// we can share this stack between real and protected mode.
// that simplifies a lot of things ...
-// we'll just push all the registers on the stack as longwords,
-// and pop to protected mode.
-// second, since this only ever runs as part of linuxbios,
+// we'll just push all the registers on the stack as longwords,
+// and pop to protected mode.
+// second, since this only ever runs as part of linuxbios,
// we know all the segment register values -- so we don't save any.
-// keep the handler that calls things small. It can do a call to
+// keep the handler that calls things small. It can do a call to
// more complex code in linuxbios itself. This helps a lot as we don't
// have to do address fixup in this little stub, and calls are absolute
// so the handler is relocatable.
void handler(void)
{
- __asm__ __volatile__ (
- " .code16 \n"
- "idthandle: \n"
- " pushal \n"
- " movb $0, %al \n"
- " ljmp $0, $callbiosint16\n"
- "end_idthandle: \n"
- " .code32 \n"
- );
+ __asm__ __volatile__(" .code16 \n"
+ "idthandle: \n"
+ " pushal \n"
+ " movb $0, %al \n"
+ " ljmp $0, $callbiosint16\n"
+ "end_idthandle: \n"
+ " .code32 \n");
}
void debughandler(void)
{
- __asm__ __volatile__ (
- " .code16 \n"
- "debughandle: \n"
- " pushw %cx \n"
- " movw $250, %cx \n"
- "dbh1: \n"
- " loop dbh1 \n"
- " popw %cx \n"
- " iret \n"
- "end_debughandle: \n"
- ".code32 \n"
- );
+ __asm__ __volatile__(" .code16 \n"
+ "debughandle: \n"
+ " pushw %cx \n"
+ " movw $250, %cx \n"
+ "dbh1: \n"
+ " loop dbh1 \n"
+ " popw %cx \n"
+ " iret \n"
+ "end_debughandle: \n" ".code32 \n");
}
// Calling conventions. The first C function is called with this stuff
// on the stack. They look like value parameters, but note that if you
-// modify them they will go back to the INTx function modified.
+// modify them they will go back to the INTx function modified.
// the C function will call the biosint function with these as
-// REFERENCE parameters. In this way, we can easily get
+// REFERENCE parameters. In this way, we can easily get
// returns back to the INTx caller (i.e. vgabios)
void callbiosint(void)
{
- __asm__ __volatile__ (
- " .code16 \n"
- "callbiosint16: \n"
- " push %ds \n"
- " push %es \n"
- " push %fs \n"
- " push %gs \n"
- // clean up the int #. To save space we put it in the lower
- // byte. But the top 24 bits are junk.
- " andl $0xff, %eax\n"
- // this push does two things:
- // - put the INT # on the stack as a parameter
- // - provides us with a temp for the %cr0 mods.
- " pushl %eax \n"
- " movb $0xbb, %al\n"
- " outb %al, $0x80\n"
- " movl %cr0, %eax\n"
- " orl $0x00000001, %eax\n" /* PE = 1 */
- " movl %eax, %cr0\n"
- /* Now that we are in protected mode jump to a 32 bit code
segment. */
- " data32 ljmp $0x10, $biosprotect\n"
- "biosprotect: \n"
- " .code32 \n"
- " movw $0x18, %ax \n"
- " mov %ax, %ds \n"
- " mov %ax, %es \n"
- " mov %ax, %fs \n"
- " mov %ax, %gs \n"
- " mov %ax, %ss \n"
- " lidt idtarg \n"
- " call biosint \n"
- // back to real mode ...
- " ljmp $0x28, $__rms_16bit2\n"
- "__rms_16bit2: \n"
- " .code16 \n"
- /* 16 bit code from here on... */
- /* Load the segment registers w/ properly configured segment
- * descriptors. They will retain these configurations (limits,
- * writability, etc.) once protected mode is turned off. */
- " mov $0x30, %ax \n"
- " mov %ax, %ds \n"
- " mov %ax, %es \n"
- " mov %ax, %fs \n"
- " mov %ax, %gs \n"
- " mov %ax, %ss \n"
-
- /* Turn off protection (bit 0 in CR0) */
- " movl %cr0, %eax \n"
- " andl $0xFFFFFFFE, %eax \n"
- " movl %eax, %cr0 \n"
-
- /* Now really going into real mode */
- " ljmp $0, $__rms_real2 \n"
- "__rms_real2: \n"
-
- /* Setup a stack
- * FixME: where is esp? */
- /* no need for a fix here. The esp is shared from 32-bit and
16-bit mode.
- * you have to hack on the ss, but the esp remains the same
across
- * modes.
- */
- " mov $0x0, %ax \n"
- " mov %ax, %ss \n"
-
- /* debugging for RGM */
- " mov $0x11, %al \n"
- " outb %al, $0x80 \n"
-
- /* Load our 16 bit idt */
- " xor %ax, %ax \n"
- " mov %ax, %ds \n"
- " lidt __myidt \n"
-
- /* Dump zeros in the other segregs */
- " mov %ax, %es \n"
- " mov %ax, %fs \n"
- " mov %ax, %gs \n"
- " mov $0x40, %ax \n"
- " mov %ax, %ds \n"
-
- /* pop the INT # that you pushed earlier */
- " popl %eax \n"
- " pop %gs \n"
- " pop %fs \n"
- " pop %es \n"
- " pop %ds \n"
- " popal \n"
- " iret \n"
- " .code32 \n"
- );
+ __asm__ __volatile__(" .code16 \n"
+ "callbiosint16: \n"
+ " push %ds \n"
+ " push %es \n"
+ " push %fs \n" " push %gs \n"
+ // clean up the int #. To save space we put it in
the lower
+ // byte. But the top 24 bits are junk.
+ " andl $0xff, %eax\n"
+ // this push does two things:
+ // - put the INT # on the stack as a parameter
+ // - provides us with a temp for the %cr0 mods.
+ " pushl %eax \n" " movb $0xbb, %al\n" "
outb %al, $0x80\n" " movl %cr0, %eax\n" " orl $0x00000001, %eax\n"
/* PE = 1 */
+ " movl %eax, %cr0\n"
+ /* Now that we are in protected mode jump to a 32
bit code segment. */
+ " data32 ljmp $0x10, $biosprotect\n"
+ "biosprotect: \n"
+ " .code32 \n"
+ " movw $0x18, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov %ax, %ss \n"
+ " lidt idtarg \n"
+ " call biosint \n"
+ // back to real mode ...
+ " ljmp $0x28, $__rms_16bit2\n"
+ "__rms_16bit2: \n"
+ " .code16 \n"
+ /* 16 bit code from here on... */
+ /* Load the segment registers w/ properly
configured segment
+ * descriptors. They will retain these
configurations (limits,
+ * writability, etc.) once protected mode is
turned off. */
+ " mov $0x30, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov %ax, %ss \n"
+ /* Turn off protection (bit 0 in CR0) */
+ " movl %cr0, %eax \n"
+ " andl $0xFFFFFFFE, %eax \n"
+ " movl %eax, %cr0 \n"
+ /* Now really going into real mode */
+ " ljmp $0, $__rms_real2 \n"
+ "__rms_real2: \n"
+ /* Setup a stack
+ * FixME: where is esp? */
+ /* no need for a fix here. The esp is shared from
32-bit and 16-bit mode.
+ * you have to hack on the ss, but the esp remains
the same across
+ * modes.
+ */
+ " mov $0x0, %ax \n"
+ " mov %ax, %ss \n"
+ /* debugging for RGM */
+ " mov $0x11, %al \n"
+ " outb %al, $0x80 \n"
+ /* Load our 16 bit idt */
+ " xor %ax, %ax \n"
+ " mov %ax, %ds \n"
+ " lidt __myidt \n"
+ /* Dump zeros in the other segregs */
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov $0x40, %ax \n"
+ " mov %ax, %ds \n"
+ /* pop the INT # that you pushed earlier */
+ " popl %eax \n"
+ " pop %gs \n"
+ " pop %fs \n"
+ " pop %es \n"
+ " pop %ds \n"
+ " popal \n"
+ " iret \n"
+ " .code32 \n");
}
enum {
- PCIBIOS = 0x1a,
+ PCIBIOS = 0x1a,
MEMSIZE = 0x12
};
@@ -519,29 +468,29 @@
int handleint21(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp,
unsigned long *pesp, unsigned long *pebx, unsigned long *pedx,
- unsigned long *pecx, unsigned long *peax, unsigned long *pflags
- );
+ unsigned long *pecx, unsigned long *peax,
+ unsigned long *pflags);
int biosint(unsigned long intnumber,
unsigned long gsfs, unsigned long dses,
unsigned long edi, unsigned long esi,
- unsigned long ebp, unsigned long esp,
- unsigned long ebx, unsigned long edx,
- unsigned long ecx, unsigned long eax,
+ unsigned long ebp, unsigned long esp,
+ unsigned long ebx, unsigned long edx,
+ unsigned long ecx, unsigned long eax,
unsigned long cs_ip, unsigned short stackflags)
{
- unsigned long ip;
- unsigned long cs;
+ unsigned long ip;
+ unsigned long cs;
unsigned long flags;
int ret = -1;
ip = cs_ip & 0xffff;
cs = cs_ip >> 16;
flags = stackflags;
-
+
printk_debug("biosint: INT# 0x%lx\n", intnumber);
- printk_debug("biosint: eax 0x%lx ebx 0x%lx ecx 0x%lx edx 0x%lx\n",
- eax, ebx, ecx, edx);
+ printk_debug("biosint: eax 0x%lx ebx 0x%lx ecx 0x%lx edx 0x%lx\n",
+ eax, ebx, ecx, edx);
printk_debug("biosint: ebp 0x%lx esp 0x%lx edi 0x%lx esi 0x%lx\n",
ebp, esp, edi, esi);
printk_debug("biosint: ip 0x%x cs 0x%x flags 0x%x\n",
@@ -549,15 +498,15 @@
printk_debug("biosint: gs 0x%x fs 0x%x ds 0x%x es 0x%x\n",
gsfs >> 16, gsfs & 0xffff, dses >> 16, dses & 0xffff);
- // cases in a good compiler are just as good as your own tables.
+ // cases in a good compiler are just as good as your own tables.
switch (intnumber) {
- case 0 ... 15:
+ case 0...15:
// These are not BIOS service, but the CPU-generated exceptions
printk_info("biosint: Oops, exception %u\n", intnumber);
if (esp < 0x1000) {
printk_debug("Stack contents: ");
while (esp < 0x1000) {
- printk_debug("0x%04x ", *(unsigned short *)
esp);
+ printk_debug("0x%04x ", *(unsigned short *)esp);
esp += 2;
}
printk_debug("\n");
@@ -566,82 +515,78 @@
// "longjmp"
//vga_exit();
break;
-
+
case PCIBIOS:
- ret = pcibios( &edi, &esi, &ebp, &esp,
- &ebx, &edx, &ecx, &eax, &flags);
+ ret = pcibios(&edi, &esi, &ebp, &esp,
+ &ebx, &edx, &ecx, &eax, &flags);
break;
- case MEMSIZE:
- // who cares.
+ case MEMSIZE:
+ // who cares.
eax = 128 * 1024;
ret = 0;
break;
case 0x15:
- ret=handleint21( &edi, &esi, &ebp, &esp,
- &ebx, &edx, &ecx, &eax, &flags);
+ ret = handleint21(&edi, &esi, &ebp, &esp,
+ &ebx, &edx, &ecx, &eax, &flags);
break;
default:
- printk_info("BIOSINT: Unsupport int #0x%x\n",
- intnumber);
+ printk_info("BIOSINT: Unsupport int #0x%x\n", intnumber);
break;
}
if (ret)
- flags |= 1; // carry flags
+ flags |= 1; // carry flags
else
flags &= ~1;
stackflags = flags;
return ret;
-}
-
+}
-void setup_realmode_idt(void)
+void setup_realmode_idt(void)
{
extern unsigned char idthandle, end_idthandle;
extern unsigned char debughandle, end_debughandle;
int i;
- struct realidt *idts = (struct realidt *) 0;
+ struct realidt *idts = (struct realidt *)0;
int codesize = &end_idthandle - &idthandle;
unsigned char *intbyte, *codeptr;
-
+
// for each int, we create a customized little handler
- // that just pushes %ax, puts the int # in %al,
- // then calls the common interrupt handler.
- // this necessitated because intel didn't know much about
+ // that just pushes %ax, puts the int # in %al,
+ // then calls the common interrupt handler.
+ // this necessitated because intel didn't know much about
// architecture when they did the 8086 (it shows)
// (hmm do they know anymore even now :-)
- // obviously you can see I don't really care about memory
+ // obviously you can see I don't really care about memory
// efficiency. If I did I would probe back through the stack
// and get it that way. But that's really disgusting.
for (i = 0; i < 256; i++) {
idts[i].cs = 0;
- codeptr = (unsigned char*) 4096 + i * codesize;
- idts[i].offset = (unsigned) codeptr;
+ codeptr = (unsigned char *)4096 + i * codesize;
+ idts[i].offset = (unsigned)codeptr;
memcpy(codeptr, &idthandle, codesize);
intbyte = codeptr + 3;
*intbyte = i;
}
-
+
// fixed entry points
-
+
// VGA BIOSes tend to hardcode f000:f065 as the previous handler of
- // int10.
+ // int10.
// calling convention here is the same as INTs, we can reuse
// the int entry code.
- codeptr = (unsigned char*) 0xff065;
+ codeptr = (unsigned char *)0xff065;
memcpy(codeptr, &idthandle, codesize);
intbyte = codeptr + 3;
- *intbyte = 0x42; /* int42 is the relocated int10 */
+ *intbyte = 0x42; /* int42 is the relocated int10 */
/* debug handler - useful to set a programmable delay between
instructions if the
TF bit is set upon call to real mode */
idts[1].cs = 0;
idts[1].offset = 16384;
- memcpy((void*)16384, &debughandle, &end_debughandle - &debughandle);
+ memcpy((void *)16384, &debughandle, &end_debughandle - &debughandle);
}
-
-
enum {
CHECK = 0xb001,
FINDDEV = 0xb102,
@@ -654,15 +599,15 @@
};
// errors go in AH. Just set these up so that word assigns
-// will work. KISS.
+// will work. KISS.
enum {
PCIBIOS_NODEV = 0x8600,
PCIBIOS_BADREG = 0x8700
};
int
-pcibios(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp,
- unsigned long *pesp, unsigned long *pebx, unsigned long *pedx,
+pcibios(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp,
+ unsigned long *pesp, unsigned long *pebx, unsigned long *pedx,
unsigned long *pecx, unsigned long *peax, unsigned long *pflags)
{
unsigned long edi = *pedi;
@@ -674,150 +619,153 @@
unsigned long ecx = *pecx;
unsigned long eax = *peax;
unsigned long flags = *pflags;
- unsigned short func = (unsigned short) eax;
+ unsigned short func = (unsigned short)eax;
int retval = 0;
unsigned short devid, vendorid, devfn;
- short devindex; /* Use short to get rid of gabage in upper half of
32-bit register */
+ short devindex; /* Use short to get rid of gabage in upper half
of 32-bit register */
unsigned char bus;
device_t dev;
-
- switch(func) {
- case CHECK:
+
+ switch (func) {
+ case CHECK:
*pedx = 0x4350;
*pecx = 0x2049;
retval = 0;
break;
case FINDDEV:
- {
- devid = *pecx;
- vendorid = *pedx;
- devindex = *pesi;
- dev = 0;
- while ((dev = dev_find_device(vendorid, devid, dev))) {
- if (devindex <= 0)
- break;
- devindex--;
- }
- if (dev) {
- unsigned short busdevfn;
- *peax = 0;
- // busnum is an unsigned char;
- // devfn is an int, so we mask it off.
- busdevfn = (dev->bus->secondary << 8)
- | (dev->path.u.pci.devfn & 0xff);
- printk_debug("0x%x: return 0x%x\n", func, busdevfn);
- *pebx = busdevfn;
- retval = 0;
- } else {
- *peax = PCIBIOS_NODEV;
- retval = -1;
+ {
+ devid = *pecx;
+ vendorid = *pedx;
+ devindex = *pesi;
+ dev = 0;
+ while ((dev = dev_find_device(vendorid, devid, dev))) {
+ if (devindex <= 0)
+ break;
+ devindex--;
+ }
+ if (dev) {
+ unsigned short busdevfn;
+ *peax = 0;
+ // busnum is an unsigned char;
+ // devfn is an int, so we mask it off.
+ busdevfn = (dev->bus->secondary << 8)
+ | (dev->path.u.pci.devfn & 0xff);
+ printk_debug("0x%x: return 0x%x\n", func,
+ busdevfn);
+ *pebx = busdevfn;
+ retval = 0;
+ } else {
+ *peax = PCIBIOS_NODEV;
+ retval = -1;
+ }
}
- }
- break;
+ break;
case READCONFDWORD:
case READCONFWORD:
case READCONFBYTE:
case WRITECONFDWORD:
case WRITECONFWORD:
case WRITECONFBYTE:
- {
- unsigned long dword;
- unsigned short word;
- unsigned char byte;
- unsigned char reg;
-
- devfn = *pebx & 0xff;
- bus = *pebx >> 8;
- reg = *pedi;
- dev = dev_find_slot(bus, devfn);
- if (! dev) {
- printk_debug("0x%x: BAD DEVICE bus %d devfn 0x%x\n",
func, bus, devfn);
- // idiots. the pcibios guys assumed you'd never pass a
bad bus/devfn!
- *peax = PCIBIOS_BADREG;
- retval = -1;
- }
- switch(func) {
- case READCONFBYTE:
- byte = pci_read_config8(dev, reg);
- *pecx = byte;
- break;
- case READCONFWORD:
- word = pci_read_config16(dev, reg);
- *pecx = word;
- break;
- case READCONFDWORD:
- dword = pci_read_config32(dev, reg);
- *pecx = dword;
- break;
- case WRITECONFBYTE:
- byte = *pecx;
- pci_write_config8(dev, reg, byte);
- break;
- case WRITECONFWORD:
- word = *pecx;
- pci_write_config16(dev, reg, word);
- break;
- case WRITECONFDWORD:
- dword = *pecx;
- pci_write_config32(dev, reg, dword);
- break;
- }
-
- if (retval)
- retval = PCIBIOS_BADREG;
- printk_debug("0x%x: bus %d devfn 0x%x reg 0x%x val 0x%lx\n",
+ {
+ unsigned long dword;
+ unsigned short word;
+ unsigned char byte;
+ unsigned char reg;
+
+ devfn = *pebx & 0xff;
+ bus = *pebx >> 8;
+ reg = *pedi;
+ dev = dev_find_slot(bus, devfn);
+ if (!dev) {
+ printk_debug
+ ("0x%x: BAD DEVICE bus %d devfn 0x%x\n",
+ func, bus, devfn);
+ // idiots. the pcibios guys assumed you'd never
pass a bad bus/devfn!
+ *peax = PCIBIOS_BADREG;
+ retval = -1;
+ }
+ switch (func) {
+ case READCONFBYTE:
+ byte = pci_read_config8(dev, reg);
+ *pecx = byte;
+ break;
+ case READCONFWORD:
+ word = pci_read_config16(dev, reg);
+ *pecx = word;
+ break;
+ case READCONFDWORD:
+ dword = pci_read_config32(dev, reg);
+ *pecx = dword;
+ break;
+ case WRITECONFBYTE:
+ byte = *pecx;
+ pci_write_config8(dev, reg, byte);
+ break;
+ case WRITECONFWORD:
+ word = *pecx;
+ pci_write_config16(dev, reg, word);
+ break;
+ case WRITECONFDWORD:
+ dword = *pecx;
+ pci_write_config32(dev, reg, dword);
+ break;
+ }
+
+ if (retval)
+ retval = PCIBIOS_BADREG;
+ printk_debug
+ ("0x%x: bus %d devfn 0x%x reg 0x%x val 0x%lx\n",
func, bus, devfn, reg, *pecx);
- *peax = 0;
- retval = 0;
- }
- break;
+ *peax = 0;
+ retval = 0;
+ }
+ break;
default:
- printk_err("UNSUPPORTED PCIBIOS FUNCTION 0x%x\n", func);
+ printk_err("UNSUPPORTED PCIBIOS FUNCTION 0x%x\n", func);
break;
}
-
+
return retval;
-}
+}
int handleint21(unsigned long *edi, unsigned long *esi, unsigned long *ebp,
unsigned long *esp, unsigned long *ebx, unsigned long *edx,
unsigned long *ecx, unsigned long *eax, unsigned long *flags)
{
- int res=-1;
+ int res = -1;
printk_debug("handleint21, eax 0x%x\n", *eax);
- switch(*eax&0xffff)
- {
+ switch (*eax & 0xffff) {
case 0x5f19:
break;
case 0x5f18:
- *eax=0x5f;
- *ebx=0x545; // MCLK = 133, 32M frame buffer, 256 M main memory
- *ecx=0x060;
- res=0;
+ *eax = 0x5f;
+ *ebx = 0x545; // MCLK = 133, 32M frame buffer, 256 M main
memory
+ *ecx = 0x060;
+ res = 0;
break;
case 0x5f00:
*eax = 0x8600;
break;
case 0x5f01:
*eax = 0x5f;
- *ecx = (*ecx & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768
+ *ecx = (*ecx & 0xffffff00) | 2; // panel type = 2 = 1024 * 768
res = 0;
break;
case 0x5f02:
- *eax=0x5f;
- *ebx= (*ebx & 0xffff0000) | 2;
- *ecx= (*ecx & 0xffff0000) | 0x401; // PAL + crt only
- *edx= (*edx & 0xffff0000) | 0; // TV Layout - default
- res=0;
+ *eax = 0x5f;
+ *ebx = (*ebx & 0xffff0000) | 2;
+ *ecx = (*ecx & 0xffff0000) | 0x401; // PAL + crt only
+ *edx = (*edx & 0xffff0000) | 0; // TV Layout - default
+ res = 0;
break;
case 0x5f0f:
- *eax=0x860f;
+ *eax = 0x860f;
break;
case 0xBEA7:
- *eax=66;
+ *eax = 66;
break;
case 0xBEA4:
- *eax=500;
+ *eax = 500;
break;
}
return res;
--
Jordan Crouse
Senior Linux Engineer
Advanced Micro Devices, Inc.
<www.amd.com/embeddedprocessors>
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