// Basic x86 asm functions and function defs.
//
-// Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net>
//
// This file may be distributed under the terms of the GNU LGPLv3 license.
#ifndef __UTIL_H
static inline unsigned long irq_save(void)
{
unsigned long flags;
- asm volatile("pushfl ; popl %0" : "=g" (flags));
+ asm volatile("pushfl ; popl %0" : "=g" (flags): :"memory");
irq_disable();
return flags;
}
static inline void hlt(void)
{
- asm volatile("hlt");
+ asm volatile("hlt": : :"memory");
}
static inline void wbinvd(void)
{
- asm volatile("wbinvd");
+ asm volatile("wbinvd": : :"memory");
}
+#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)
{
asm("cpuid"
: "0" (index));
}
+static inline u32 getcr0(void) {
+ u32 cr0;
+ asm("movl %%cr0, %0" : "=r"(cr0));
+ return cr0;
+}
+static inline void setcr0(u32 cr0) {
+ asm("movl %0, %%cr0" : : "r"(cr0));
+}
+
+static inline u64 rdmsr(u32 index)
+{
+ u64 ret;
+ asm ("rdmsr" : "=A"(ret) : "c"(index));
+ return ret;
+}
+
+static inline void wrmsr(u32 index, u64 val)
+{
+ asm volatile ("wrmsr" : : "c"(index), "A"(val));
+}
+
static inline u64 rdtscll(void)
{
u64 val;
return val;
}
+static inline u32 __ffs(u32 word)
+{
+ 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;
+}
+
+static inline u16 __htons_constant(u16 val) {
+ return (val<<8) | (val>>8);
+}
+static inline u32 __htonl_constant(u32 val) {
+ return (val<<24) | ((val&0xff00)<<8) | ((val&0xff0000)>>8) | (val>>24);
+}
+static inline u32 __htonl(u32 val) {
+ asm("bswapl %0" : "+r"(val));
+ return val;
+}
+#define htonl(x) (__builtin_constant_p((u32)(x)) ? __htonl_constant(x) : __htonl(x))
+#define ntohl(x) htonl(x)
+#define htons(x) __htons_constant(x)
+#define ntohs(x) htons(x)
+
+static inline u16 cpu_to_le16(u16 x)
+{
+ return x;
+}
+
+static inline u32 cpu_to_le32(u32 x)
+{
+ return x;
+}
+
+static inline u32 le32_to_cpu(u32 x)
+{
+ return x;
+}
+
+static inline u32 getesp(void) {
+ 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( \
+ "pushl %%ebp\n" \
+ "sti\n" \
+ "stc\n" \
+ "int %2\n" \
+ "pushfl\n" \
+ "popl %1\n" \
+ "cli\n" \
+ "cld\n" \
+ "popl %%ebp" \
+ : "+a"(*peax), "=c"(*pflags) \
+ : "i"(nr) \
+ : "ebx", "edx", "esi", "edi", "cc", "memory"); \
+ } while (0)
+
+// GDT bits
+#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
+// GDT bits for segment base
+#define GDT_BASE(v) ((((u64)(v) & 0xff000000) << 32) \
+ | (((u64)(v) & 0x00ffffff) << 16))
+// GDT bits for segment limit (0-1Meg)
+#define GDT_LIMIT(v) ((((u64)(v) & 0x000f0000) << 32) \
+ | (((u64)(v) & 0x0000ffff) << 0))
+// GDT bits for segment limit (0-4Gig in 4K chunks)
+#define GDT_GRANLIMIT(v) (GDT_G | GDT_LIMIT((v) >> 12))
+
+struct descloc_s {
+ u16 length;
+ u32 addr;
+} PACKED;
+
// util.c
-inline u32 stack_hop(u32 eax, u32 edx, u32 ecx, void *func);
+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)
u8 checksum_far(u16 buf_seg, void *buf_far, u32 len);
u8 checksum(void *buf, u32 len);
-int memcmp(const void *s1, const void *s2, size_t n);
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);
-void memcpy4(void *d1, const void *s1, size_t len);
-#define memcpy(d1, s1, len) __builtin_memcpy((d1), (s1), (len))
+void memset_fl(void *ptr, u8 val, size_t size);
inline void memcpy_far(u16 d_seg, void *d_far
, u16 s_seg, const void *s_far, size_t len);
+void memcpy_fl(void *d_fl, const void *s_fl, 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);
-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)
-inline void call16_simpint(int nr, u32 *eax, u32 *flags);
-void usleep(u32 usec);
+char *strchr(const char *s, int c);
+void nullTrailingSpace(char *buf);
int get_keystroke(int msec);
+// stacks.c
+u32 call32(void *func, u32 eax, u32 errret);
+inline u32 stack_hop(u32 eax, u32 edx, void *func);
+extern struct thread_info MainThread;
+extern int CanPreempt;
+struct thread_info *getCurThread(void);
+void yield(void);
+void wait_irq(void);
+void run_thread(void (*func)(void*), void *data);
+void wait_threads(void);
+struct mutex_s { u32 isLocked; };
+void mutex_lock(struct mutex_s *mutex);
+void mutex_unlock(struct mutex_s *mutex);
+void start_preempt(void);
+void finish_preempt(void);
+int wait_preempt(void);
+void check_preempt(void);
+
// output.c
-void debug_serial_setup();
+void debug_serial_setup(void);
void panic(const char *fmt, ...)
- __attribute__ ((format (printf, 1, 2)))
- __attribute__ ((noreturn));
+ __attribute__ ((format (printf, 1, 2))) __noreturn;
void printf(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
+int snprintf(char *str, size_t size, const char *fmt, ...)
+ __attribute__ ((format (printf, 3, 4)));
+char * znprintf(size_t size, const char *fmt, ...)
+ __attribute__ ((format (printf, 2, 3)));
void __dprintf(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
+void __debug_enter(struct bregs *regs, const char *fname);
+void __debug_isr(const char *fname);
+void __debug_stub(struct bregs *regs, int lineno, const char *fname);
+void __warn_invalid(struct bregs *regs, int lineno, const char *fname);
+void __warn_unimplemented(struct bregs *regs, int lineno, const char *fname);
+void __warn_internalerror(int lineno, const char *fname);
+void __warn_noalloc(int lineno, const char *fname);
+void __warn_timeout(int lineno, const char *fname);
+void __set_invalid(struct bregs *regs, int lineno, const char *fname);
+void __set_unimplemented(struct bregs *regs, int lineno, const char *fname);
+void __set_code_invalid(struct bregs *regs, u32 linecode, const char *fname);
+void __set_code_unimplemented(struct bregs *regs, u32 linecode
+ , const char *fname);
+void hexdump(const void *d, int len);
+
#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, lvl) do { \
if ((lvl) && (lvl) <= CONFIG_DEBUG_LEVEL) \
__debug_enter((regs), __func__); \
} while (0)
#define debug_stub(regs) \
__debug_stub((regs), __LINE__, __func__)
-void hexdump(void *d, int len);
+#define warn_invalid(regs) \
+ __warn_invalid((regs), __LINE__, __func__)
+#define warn_unimplemented(regs) \
+ __warn_unimplemented((regs), __LINE__, __func__)
+#define warn_internalerror() \
+ __warn_internalerror(__LINE__, __func__)
+#define warn_noalloc() \
+ __warn_noalloc(__LINE__, __func__)
+#define warn_timeout() \
+ __warn_timeout(__LINE__, __func__)
+#define set_invalid(regs) \
+ __set_invalid((regs), __LINE__, __func__)
+#define set_code_invalid(regs, code) \
+ __set_code_invalid((regs), (code) | (__LINE__ << 8), __func__)
+#define set_unimplemented(regs) \
+ __set_unimplemented((regs), __LINE__, __func__)
+#define set_code_unimplemented(regs, code) \
+ __set_code_unimplemented((regs), (code) | (__LINE__ << 8), __func__)
// kbd.c
-void kbd_setup();
+void kbd_setup(void);
void handle_15c2(struct bregs *regs);
+void process_key(u8 key);
// mouse.c
-void mouse_setup();
+void mouse_setup(void);
+void process_mouse(u8 data);
// system.c
extern u32 RamSize;
extern u64 RamSizeOver4G;
-void mathcp_setup();
+void mathcp_setup(void);
// serial.c
-void serial_setup();
-void lpt_setup();
+void serial_setup(void);
+void lpt_setup(void);
// clock.c
-void timer_setup();
+#define PIT_TICK_RATE 1193180 // Underlying HZ of PIT
+#define PIT_TICK_INTERVAL 65536 // Default interval for 18.2Hz timer
+static inline int check_tsc(u64 end) {
+ return (s64)(rdtscll() - end) > 0;
+}
+void timer_setup(void);
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);
+u32 calc_future_timer_ticks(u32 count);
+u32 calc_future_timer(u32 msecs);
+int check_timer(u32 end);
void handle_1583(struct bregs *regs);
void handle_1586(struct bregs *regs);
+void useRTC(void);
+void releaseRTC(void);
// apm.c
-void VISIBLE16 handle_1553(struct bregs *regs);
+void apm_shutdown(void);
+void handle_1553(struct bregs *regs);
// pcibios.c
void handle_1ab1(struct bregs *regs);
+void bios32_setup(void);
// shadow.c
-void make_bios_writable();
-void make_bios_readonly();
+void make_bios_writable(void);
+void make_bios_readonly(void);
+void qemu_prep_reset(void);
// pciinit.c
-void pci_bios_setup(void);
+extern const u8 pci_irqs[4];
+void pci_setup(void);
// smm.c
-void smm_init();
+void smm_init(void);
-// smpdetect.c
-int smp_probe(void);
-void smp_probe_setup(void);
-
-// smbios.c
-void smbios_init(void);
+// smp.c
+extern u32 CountCPUs;
+extern u32 MaxCountCPUs;
+void wrmsr_smp(u32 index, u64 val);
+void smp_probe(void);
// coreboot.c
-const char *cbfs_findNprefix(const char *prefix, int n);
-int cbfs_copy_optionrom(void *dst, u32 maxlen, u32 vendev);
-void cbfs_run_payload(const char *filename);
+extern const char *CBvendor, *CBpart;
struct cbfs_file;
-struct cbfs_file *cbfs_copy_gen_optionrom(void *dst, u32 maxlen
- , struct cbfs_file *file);
-void coreboot_setup();
+struct cbfs_file *cbfs_finddatafile(const char *fname);
+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);
+void cbfs_run_payload(struct cbfs_file *file);
+void coreboot_copy_biostable(void);
+void cbfs_payload_setup(void);
+void coreboot_setup(void);
+
+// biostable.c
+void copy_pir(void *pos);
+void copy_mptable(void *pos);
+void copy_acpi_rsdp(void *pos);
+void copy_smbios(void *pos);
// vgahooks.c
-void handle_155f();
+void handle_155f(struct bregs *regs);
+struct pci_device;
+void vgahook_setup(struct pci_device *pci);
// optionroms.c
void call_bcv(u16 seg, u16 ip);
-void vga_setup();
-void optionrom_setup();
+void optionrom_setup(void);
+void vga_setup(void);
+void s3_resume_vga_init(void);
+extern u32 RomEnd;
+extern int ScreenAndDebug;
+
+// bootsplash.c
+void enable_vga_console(void);
+void enable_bootsplash(void);
+void disable_bootsplash(void);
// resume.c
-void init_dma();
+extern int HaveRunPost;
+void init_dma(void);
// pnpbios.c
#define PNP_SIGNATURE 0x506e5024 // $PnP
-u16 get_pnp_offset();
-void pnp_setup();
+u16 get_pnp_offset(void);
+void pnp_setup(void);
+
+// pmm.c
+extern struct zone_s ZoneLow, ZoneHigh, ZoneFSeg, ZoneTmpLow, ZoneTmpHigh;
+void malloc_setup(void);
+void malloc_fixupreloc(void);
+void malloc_finalize(void);
+void *pmm_malloc(struct zone_s *zone, u32 handle, u32 size, u32 align);
+int pmm_free(void *data);
+void pmm_setup(void);
+void pmm_finalize(void);
+#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_tmplow(u32 size) {
+ return pmm_malloc(&ZoneTmpLow, 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 *malloc_tmp(u32 size) {
+ void *ret = malloc_tmphigh(size);
+ if (ret)
+ return ret;
+ return malloc_tmplow(size);
+}
+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_tmplow(u32 align, u32 size) {
+ return pmm_malloc(&ZoneTmpLow, 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 *memalign_tmp(u32 align, u32 size) {
+ void *ret = memalign_tmphigh(align, size);
+ if (ret)
+ return ret;
+ return memalign_tmplow(align, size);
+}
+static inline void free(void *data) {
+ pmm_free(data);
+}
// mtrr.c
void mtrr_setup(void);
// romlayout.S
-void reset_vector() __attribute__ ((noreturn));
+void reset_vector(void) __noreturn;
// misc.c
extern u8 BiosChecksum;
+// version (auto generated file out/version.c)
+extern const char VERSION[];
+
#endif // util.h