// 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;
}
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");
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 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 getesp(void) {
u32 esp;
asm("movl %%esp, %0" : "=rm"(esp));
#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" \
- : "+a"(*peax), "=r"(*pflags) \
+ "cld\n" \
+ "popl %%ebp" \
+ : "+a"(*peax), "=c"(*pflags) \
: "i"(nr) \
- : "cc", "memory"); \
+ : "ebx", "edx", "esi", "edi", "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))
+// 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;
extern void irq_trampoline_ ##nr (); \
__call16_int((callregs), (u32)&irq_trampoline_ ##nr ); \
} while (0)
-void check_irqs(void);
u8 checksum_far(u16 buf_seg, void *buf_far, u32 len);
u8 checksum(void *buf, u32 len);
size_t strlen(const char *s);
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_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
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);
+inline u32 stack_hop(u32 eax, u32 edx, void *func);
extern struct thread_info MainThread;
void thread_setup(void);
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
// clock.c
#define PIT_TICK_RATE 1193180 // Underlying HZ of PIT
#define PIT_TICK_INTERVAL 65536 // Default interval for 18.2Hz timer
-static inline int check_time(u64 end) {
+static inline int check_tsc(u64 end) {
return (s64)(rdtscll() - end) > 0;
}
void timer_setup(void);
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 apm_shutdown(void);
void handle_1553(struct bregs *regs);
// pcibios.c
// shadow.c
void make_bios_writable(void);
void make_bios_readonly(void);
+void make_bios_writable_intel(u16 bdf, u32 pam0);
+void make_bios_readonly_intel(u16 bdf, u32 pam0);
+void qemu_prep_reset(void);
+
+// smm.c
+void smm_save_and_copy(void);
+void smm_relocate_and_restore(void);
// pciinit.c
+extern const u8 pci_irqs[4];
+void pci_bios_allocate_regions(u16 bdf, void *arg);
void pci_setup(void);
// smm.c
// coreboot.c
struct cbfs_file;
+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);
-int cbfs_copy_optionrom(void *dst, u32 maxlen, u32 vendev);
void cbfs_run_payload(struct cbfs_file *file);
-
void coreboot_copy_biostable(void);
void coreboot_setup(void);
void s3_resume_vga_init(void);
extern u32 RomEnd;
+// bootsplash.c
+void enable_vga_console(void);
+void enable_bootsplash(void);
+void disable_bootsplash(void);
+
// resume.c
void init_dma(void);
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);
}
void *ret = malloc_tmphigh(size);
if (ret)
return ret;
- return pmm_malloc(&ZoneTmpLow, PMM_DEFAULT_HANDLE, size, MALLOC_MIN_ALIGN);
+ return malloc_tmplow(size);
}
static inline void *memalign_low(u32 align, u32 size) {
return pmm_malloc(&ZoneLow, PMM_DEFAULT_HANDLE, size, align);
projects / seabios.git / blobdiff