// Basic x86 asm functions and function defs.
//
-// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net>
//
-// This file may be distributed under the terms of the GNU GPLv3 license.
+// This file may be distributed under the terms of the GNU LGPLv3 license.
#ifndef __UTIL_H
#define __UTIL_H
-#include "ioport.h" // outb
-#include "biosvar.h" // struct bregs
+#include "types.h" // u32
static inline void irq_disable(void)
{
asm volatile("rep ; nop": : :"memory");
}
+// Atomically enable irqs and sleep until an irq; then re-disable irqs.
+static inline void wait_irq(void)
+{
+ asm volatile("sti ; hlt ; cli ; cld": : :"memory");
+}
+
static inline void nop(void)
{
asm volatile("nop");
asm volatile("hlt");
}
-void *memset(void *s, int c, size_t n);
-void *memcpy(void *d1, const void *s1, size_t len);
+static inline void wbinvd(void)
+{
+ asm volatile("wbinvd");
+}
-static inline void
-eoi_master_pic()
+#define CPUID_MSR (1 << 5)
+#define CPUID_APIC (1 << 9)
+#define CPUID_MTRR (1 << 12)
+static inline void cpuid(u32 index, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
{
- outb(PIC1_IRQ5, PORT_PIC1);
+ asm("cpuid"
+ : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
+ : "0" (index));
}
-static inline void
-eoi_both_pics()
+static inline u64 rdmsr(u32 index)
{
- outb(PIC2_IRQ13, PORT_PIC2);
- eoi_master_pic();
+ u64 ret;
+ asm ("rdmsr" : "=A"(ret) : "c"(index));
+ return ret;
}
-// Call a function with a specified register state. Note that on
-// return, the interrupt enable/disable flag may be altered.
-static inline
-void call16(struct bregs *callregs)
+static inline void wrmsr(u32 index, u64 val)
{
- asm volatile(
-#ifdef MODE16
- "calll __call16\n"
-#else
- "calll __call16_from32\n"
-#endif
- : "+a" (callregs), "+m" (*callregs)
- :
- : "ebx", "ecx", "edx", "esi", "edi", "ebp", "cc");
+ asm volatile ("wrmsr" : : "c"(index), "A"(val));
+}
+
+static inline u64 rdtscll(void)
+{
+ u64 val;
+ asm volatile("rdtsc" : "=A" (val));
+ return val;
}
-static inline
-void __call16_int(struct bregs *callregs, u16 offset)
+static inline u32 __ffs(u32 word)
{
- callregs->cs = SEG_BIOS;
- callregs->ip = offset;
- call16(callregs);
+ asm("bsf %1,%0"
+ : "=r" (word)
+ : "rm" (word));
+ return word;
+}
+static inline u32 __fls(u32 word)
+{
+ asm("bsr %1,%0"
+ : "=r" (word)
+ : "rm" (word));
+ return word;
}
-#ifdef MODE16
+static inline u32 getesp() {
+ u32 esp;
+ asm("movl %%esp, %0" : "=rm"(esp));
+ return esp;
+}
+
+static inline void writel(void *addr, u32 val) {
+ *(volatile u32 *)addr = val;
+}
+static inline void writew(void *addr, u16 val) {
+ *(volatile u16 *)addr = val;
+}
+static inline void writeb(void *addr, u8 val) {
+ *(volatile u8 *)addr = val;
+}
+static inline u32 readl(const void *addr) {
+ return *(volatile const u32 *)addr;
+}
+static inline u16 readw(const void *addr) {
+ return *(volatile const u16 *)addr;
+}
+static inline u8 readb(const void *addr) {
+ return *(volatile const u8 *)addr;
+}
+
+#define call16_simpint(nr, peax, pflags) do { \
+ ASSERT16(); \
+ asm volatile( \
+ "stc\n" \
+ "int %2\n" \
+ "pushfl\n" \
+ "popl %1\n" \
+ "cli\n" \
+ "cld" \
+ : "+a"(*peax), "=r"(*pflags) \
+ : "i"(nr) \
+ : "cc", "memory"); \
+ } while (0)
+
+// GDT bit manipulation
+#define GDT_BASE(v) ((((u64)(v) & 0xff000000) << 32) \
+ | (((u64)(v) & 0x00ffffff) << 16))
+#define GDT_LIMIT(v) ((((u64)(v) & 0x000f0000) << 32) \
+ | (((u64)(v) & 0x0000ffff) << 0))
+#define GDT_CODE (0x9bULL << 40) // Code segment - P,R,A bits also set
+#define GDT_DATA (0x93ULL << 40) // Data segment - W,A bits also set
+#define GDT_B (0x1ULL << 54) // Big flag
+#define GDT_G (0x1ULL << 55) // Granularity flag
+
+struct descloc_s {
+ u16 length;
+ u32 addr;
+} PACKED;
+
+// util.c
+struct bregs;
+inline void call16(struct bregs *callregs);
+inline void call16big(struct bregs *callregs);
+inline void __call16_int(struct bregs *callregs, u16 offset);
#define call16_int(nr, callregs) do { \
extern void irq_trampoline_ ##nr (); \
__call16_int((callregs), (u32)&irq_trampoline_ ##nr ); \
} while (0)
-#else
-#include "../out/rom16.offset.auto.h"
-#define call16_int(nr, callregs) \
- __call16_int((callregs), OFFSET_irq_trampoline_ ##nr )
+void check_irqs();
+u8 checksum_far(u16 buf_seg, void *buf_far, u32 len);
+u8 checksum(void *buf, u32 len);
+size_t strlen(const char *s);
+int memcmp(const void *s1, const void *s2, size_t n);
+int strcmp(const char *s1, const char *s2);
+inline void memset_far(u16 d_seg, void *d_far, u8 c, size_t len);
+inline void memset16_far(u16 d_seg, void *d_far, u16 c, size_t len);
+void *memset(void *s, int c, size_t n);
+inline void memcpy_far(u16 d_seg, void *d_far
+ , u16 s_seg, const void *s_far, size_t len);
+void *memcpy(void *d1, const void *s1, size_t len);
+#if MODESEGMENT == 0
+#define memcpy __builtin_memcpy
#endif
+void iomemcpy(void *d, const void *s, u32 len);
+void *memmove(void *d, const void *s, size_t len);
+char *strtcpy(char *dest, const char *src, size_t len);
+void biosusleep(u32 usec);
+int get_keystroke(int msec);
+
+// stacks.c
+inline u32 stack_hop(u32 eax, u32 edx, u32 ecx, void *func);
+extern struct thread_info MainThread;
+void thread_setup();
+struct thread_info *getCurThread();
+void yield();
+void run_thread(void (*func)(void*), void *data);
+void wait_threads();
+void start_preempt();
+void finish_preempt();
+void check_preempt();
// output.c
-void BX_PANIC(const char *fmt, ...)
+void debug_serial_setup();
+void panic(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)))
__attribute__ ((noreturn));
-void BX_INFO(const char *fmt, ...)
- __attribute__ ((format (printf, 1, 2)));
void printf(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
-void __debug_enter(const char *fname, struct bregs *regs);
-void __debug_fail(const char *fname, struct bregs *regs);
-void __debug_stub(const char *fname, struct bregs *regs);
+void __dprintf(const char *fmt, ...)
+ __attribute__ ((format (printf, 1, 2)));
+int snprintf(char *str, size_t size, const char *fmt, ...)
+ __attribute__ ((format (printf, 3, 4)));
+#define dprintf(lvl, fmt, args...) do { \
+ if (CONFIG_DEBUG_LEVEL && (lvl) <= CONFIG_DEBUG_LEVEL) \
+ __dprintf((fmt) , ##args ); \
+ } while (0)
+void __debug_enter(struct bregs *regs, const char *fname);
+void __debug_stub(struct bregs *regs, int lineno, const char *fname);
void __debug_isr(const char *fname);
-#define debug_enter(regs) \
- __debug_enter(__func__, regs)
-#define debug_stub(regs) \
- __debug_stub(__func__, regs)
-#define debug_isr(regs) \
- __debug_isr(__func__)
-
-// Frequently used return codes
-#define RET_EUNSUPPORTED 0x86
-static inline void
-set_success(struct bregs *regs)
-{
- set_cf(regs, 0);
-}
-
-static inline void
-set_code_success(struct bregs *regs)
-{
- regs->ah = 0;
- set_cf(regs, 0);
-}
-
-void __set_fail(const char *fname, struct bregs *regs);
-void __set_code_fail(const char *fname, struct bregs *regs, u8 code);
-
-#define set_fail(regs) \
- __set_fail(__func__, (regs))
-#define set_code_fail(regs, code) \
- __set_code_fail(__func__, (regs), (code))
+#define debug_enter(regs, lvl) do { \
+ if ((lvl) && (lvl) <= CONFIG_DEBUG_LEVEL) \
+ __debug_enter((regs), __func__); \
+ } while (0)
+#define debug_isr(lvl) do { \
+ if ((lvl) && (lvl) <= CONFIG_DEBUG_LEVEL) \
+ __debug_isr(__func__); \
+ } while (0)
+#define debug_stub(regs) \
+ __debug_stub((regs), __LINE__, __func__)
+void hexdump(const void *d, int len);
// kbd.c
+void kbd_setup();
void handle_15c2(struct bregs *regs);
+void process_key(u8 key);
+
+// mouse.c
+void mouse_setup();
+void process_mouse(u8 data);
+
+// system.c
+extern u32 RamSize;
+extern u64 RamSizeOver4G;
+void mathcp_setup();
// serial.c
void serial_setup();
-void debug_serial_setup();
-void debug_serial(char c);
void lpt_setup();
// clock.c
+static inline int check_time(u64 end) {
+ return (s64)(rdtscll() - end) > 0;
+}
void timer_setup();
+void ndelay(u32 count);
+void udelay(u32 count);
+void mdelay(u32 count);
+void nsleep(u32 count);
+void usleep(u32 count);
+void msleep(u32 count);
+u64 calc_future_tsc(u32 msecs);
+u64 calc_future_tsc_usec(u32 usecs);
void handle_1583(struct bregs *regs);
+void handle_1586(struct bregs *regs);
+void useRTC();
+void releaseRTC();
// apm.c
void VISIBLE16 handle_1553(struct bregs *regs);
// pcibios.c
void handle_1ab1(struct bregs *regs);
-// util.c
-u8 checksum(u8 *far_data, u32 len);
-void usleep(u32 count);
+// shadow.c
+void make_bios_writable();
+void make_bios_readonly();
+
+// pciinit.c
+void pci_setup(void);
+
+// smm.c
+void smm_init();
+
+// smp.c
+extern u32 CountCPUs;
+extern u32 MaxCountCPUs;
+void wrmsr_smp(u32 index, u64 val);
+void smp_probe(void);
+void smp_probe_setup(void);
+
+// coreboot.c
+struct cbfs_file;
+struct cbfs_file *cbfs_findprefix(const char *prefix, struct cbfs_file *last);
+u32 cbfs_datasize(struct cbfs_file *file);
+const char *cbfs_filename(struct cbfs_file *file);
+int cbfs_copyfile(struct cbfs_file *file, void *dst, u32 maxlen);
+int cbfs_copy_optionrom(void *dst, u32 maxlen, u32 vendev);
+void cbfs_run_payload(struct cbfs_file *file);
+
+void coreboot_copy_biostable();
+void coreboot_setup();
+
+// vgahooks.c
+extern int VGAbdf;
+void handle_155f();
+void vgahook_setup(const char *vendor, const char *part);
+
+// optionroms.c
+void call_bcv(u16 seg, u16 ip);
+void optionrom_setup();
+void vga_setup();
+void s3_resume_vga_init();
+extern u32 RomEnd;
+
+// resume.c
+void init_dma();
+
+// pnpbios.c
+#define PNP_SIGNATURE 0x506e5024 // $PnP
+u16 get_pnp_offset();
+void pnp_setup();
+
+// pmm.c
+extern struct zone_s ZoneLow, ZoneHigh, ZoneFSeg, ZoneTmpLow, ZoneTmpHigh;
+void malloc_setup();
+void malloc_finalize();
+void *pmm_malloc(struct zone_s *zone, u32 handle, u32 size, u32 align);
+int pmm_free(void *data);
+void pmm_setup();
+void pmm_finalize();
+#define PMM_DEFAULT_HANDLE 0xFFFFFFFF
+// Minimum alignment of malloc'd memory
+#define MALLOC_MIN_ALIGN 16
+// Helper functions for memory allocation.
+static inline void *malloc_low(u32 size) {
+ return pmm_malloc(&ZoneLow, PMM_DEFAULT_HANDLE, size, MALLOC_MIN_ALIGN);
+}
+static inline void *malloc_high(u32 size) {
+ return pmm_malloc(&ZoneHigh, PMM_DEFAULT_HANDLE, size, MALLOC_MIN_ALIGN);
+}
+static inline void *malloc_fseg(u32 size) {
+ return pmm_malloc(&ZoneFSeg, PMM_DEFAULT_HANDLE, size, MALLOC_MIN_ALIGN);
+}
+static inline void *malloc_tmphigh(u32 size) {
+ return pmm_malloc(&ZoneTmpHigh, PMM_DEFAULT_HANDLE, size, MALLOC_MIN_ALIGN);
+}
+static inline void *memalign_low(u32 align, u32 size) {
+ return pmm_malloc(&ZoneLow, PMM_DEFAULT_HANDLE, size, align);
+}
+static inline void *memalign_high(u32 align, u32 size) {
+ return pmm_malloc(&ZoneHigh, PMM_DEFAULT_HANDLE, size, align);
+}
+static inline void *memalign_tmphigh(u32 align, u32 size) {
+ return pmm_malloc(&ZoneTmpHigh, PMM_DEFAULT_HANDLE, size, align);
+}
+static inline void free(void *data) {
+ pmm_free(data);
+}
+
+// mtrr.c
+void mtrr_setup(void);
+
+// romlayout.S
+void reset_vector() __attribute__ ((noreturn));
-// rombios32.c
-void rombios32_init(void);
+// misc.c
+extern u8 BiosChecksum;
-// boot.c
-void printf_bootdev(u16 bootdev);
+// version (auto generated file out/version.c)
+extern const char VERSION[];
-// post_menu.c
-void interactive_bootmenu();
+// XXX - optimize
+#define ntohl(x) ((((x)&0xff)<<24) | (((x)&0xff00)<<8) | \
+ (((x)&0xff0000) >> 8) | (((x)&0xff000000) >> 24))
+#define htonl(x) ntohl(x)
+#define ntohs(x) ((((x)&0xff)<<8) | (((x)&0xff00)>>8))
+#define htons(x) ntohs(x)
#endif // util.h
projects / seabios.git / blobdiff