Detect CPUID instruction before using it.

[seabios.git] / src / util.h

diff --git a/src/util.h b/src/util.h
index 3d68d455e10e84f69c7acdfd0478f821b45041f1..2c5f7ebc37931efe2b4fba97c602019aed1d4cf7 100644 (file)
--- a/src/util.h
+++ b/src/util.h
@@ -1,6 +1,6 @@
 // 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
@@ -18,15 +18,14 @@ static inline void irq_enable(void)
     asm volatile("sti": : :"memory");
 }
 
-static inline unsigned long irq_save(void)
+static inline u32 save_flags(void)
 {
-    unsigned long flags;
-    asm volatile("pushfl ; popl %0" : "=g" (flags): :"memory");
-    irq_disable();
+    u32 flags;
+    asm volatile("pushfl ; popl %0" : "=rm" (flags));
     return flags;
 }
 
-static inline void irq_restore(unsigned long flags)
+static inline void restore_flags(u32 flags)
 {
     asm volatile("pushl %0 ; popfl" : : "g" (flags) : "memory", "cc");
 }
@@ -54,13 +53,22 @@ static inline void wbinvd(void)
 #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)
+static inline void __cpuid(u32 index, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
 {
     asm("cpuid"
         : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
         : "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;
@@ -120,6 +128,11 @@ 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));
@@ -182,6 +195,7 @@ struct descloc_s {
 } PACKED;
 
 // util.c
+void cpuid(u32 index, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
 struct bregs;
 inline void call16(struct bregs *callregs);
 inline void call16big(struct bregs *callregs);
@@ -198,6 +212,7 @@ 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 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);
@@ -208,12 +223,15 @@ void *memcpy(void *d1, const void *s1, size_t len);
 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);
+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;
-void thread_setup(void);
+extern int CanPreempt;
 struct thread_info *getCurThread(void);
 void yield(void);
 void wait_irq(void);
@@ -235,6 +253,8 @@ 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);
@@ -327,6 +347,7 @@ void useRTC(void);
 void releaseRTC(void);
 
 // apm.c
+void apm_shutdown(void);
 void handle_1553(struct bregs *regs);
 
 // pcibios.c
@@ -336,16 +357,10 @@ void bios32_setup(void);
 // 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);
-
-// smm.c
-void smm_save_and_copy(void);
-void smm_relocate_and_restore(void);
+void qemu_prep_reset(void);
 
 // pciinit.c
 extern const u8 pci_irqs[4];
-void pci_bios_allocate_regions(u16 bdf, void *arg);
 void pci_setup(void);
 
 // smm.c
@@ -356,9 +371,9 @@ extern u32 CountCPUs;
 extern u32 MaxCountCPUs;
 void wrmsr_smp(u32 index, u64 val);
 void smp_probe(void);
-void smp_probe_setup(void);
 
 // coreboot.c
+extern const char *CBvendor, *CBpart;
 struct cbfs_file;
 struct cbfs_file *cbfs_finddatafile(const char *fname);
 struct cbfs_file *cbfs_findprefix(const char *prefix, struct cbfs_file *last);
@@ -367,12 +382,19 @@ 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
-extern int VGAbdf;
 void handle_155f(struct bregs *regs);
-void vgahook_setup(const char *vendor, const char *part);
+struct pci_device;
+void vgahook_setup(struct pci_device *pci);
 
 // optionroms.c
 void call_bcv(u16 seg, u16 ip);
@@ -380,6 +402,7 @@ 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);
@@ -387,6 +410,7 @@ void enable_bootsplash(void);
 void disable_bootsplash(void);
 
 // resume.c
+extern int HaveRunPost;
 void init_dma(void);
 
 // pnpbios.c
@@ -397,6 +421,7 @@ 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);
@@ -433,9 +458,18 @@ static inline void *memalign_low(u32 align, u32 size) {
 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);
 }