diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-powerpc/elf.h | 22 | ||||
| -rw-r--r-- | include/asm-powerpc/kexec.h | 49 | ||||
| -rw-r--r-- | include/asm-powerpc/machdep.h | 1 | ||||
| -rw-r--r-- | include/asm-powerpc/system.h | 48 | ||||
| -rw-r--r-- | include/asm-ppc/kexec.h | 40 | ||||
| -rw-r--r-- | include/asm-ppc64/kexec.h | 41 | ||||
| -rw-r--r-- | include/asm-ppc64/plpar_wrappers.h | 120 | ||||
| -rw-r--r-- | include/asm-ppc64/smp.h | 9 |
8 files changed, 112 insertions, 218 deletions
diff --git a/include/asm-powerpc/elf.h b/include/asm-powerpc/elf.h index d22b100..d140577 100644 --- a/include/asm-powerpc/elf.h +++ b/include/asm-powerpc/elf.h @@ -178,18 +178,22 @@ typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32]; static inline void ppc_elf_core_copy_regs(elf_gregset_t elf_regs, struct pt_regs *regs) { - int i; - int gprs = sizeof(struct pt_regs)/sizeof(ELF_GREG_TYPE); + int i, nregs; - if (gprs > ELF_NGREG) - gprs = ELF_NGREG; + memset((void *)elf_regs, 0, sizeof(elf_gregset_t)); - for (i=0; i < gprs; i++) - elf_regs[i] = (elf_greg_t)((ELF_GREG_TYPE *)regs)[i]; - - memset((char *)(elf_regs) + sizeof(struct pt_regs), 0, \ - sizeof(elf_gregset_t) - sizeof(struct pt_regs)); + /* Our registers are always unsigned longs, whether we're a 32 bit + * process or 64 bit, on either a 64 bit or 32 bit kernel. + * Don't use ELF_GREG_TYPE here. */ + nregs = sizeof(struct pt_regs) / sizeof(unsigned long); + if (nregs > ELF_NGREG) + nregs = ELF_NGREG; + for (i = 0; i < nregs; i++) { + /* This will correctly truncate 64 bit registers to 32 bits + * for a 32 bit process on a 64 bit kernel. */ + elf_regs[i] = (elf_greg_t)((ELF_GREG_TYPE *)regs)[i]; + } } #define ELF_CORE_COPY_REGS(gregs, regs) ppc_elf_core_copy_regs(gregs, regs); diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h new file mode 100644 index 0000000..062ab9b --- /dev/null +++ b/include/asm-powerpc/kexec.h @@ -0,0 +1,49 @@ +#ifndef _ASM_POWERPC_KEXEC_H +#define _ASM_POWERPC_KEXEC_H + +/* + * Maximum page that is mapped directly into kernel memory. + * XXX: Since we copy virt we can use any page we allocate + */ +#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) + +/* + * Maximum address we can reach in physical address mode. + * XXX: I want to allow initrd in highmem. Otherwise set to rmo on LPAR. + */ +#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) + +/* Maximum address we can use for the control code buffer */ +#ifdef __powerpc64__ +#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) +#else +/* TASK_SIZE, probably left over from use_mm ?? */ +#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE +#endif + +#define KEXEC_CONTROL_CODE_SIZE 4096 + +/* The native architecture */ +#ifdef __powerpc64__ +#define KEXEC_ARCH KEXEC_ARCH_PPC64 +#else +#define KEXEC_ARCH KEXEC_ARCH_PPC +#endif + +#ifndef __ASSEMBLY__ + +#define MAX_NOTE_BYTES 1024 +typedef u32 note_buf_t[MAX_NOTE_BYTES / sizeof(u32)]; + +extern note_buf_t crash_notes[]; + +#ifdef __powerpc64__ +extern void kexec_smp_wait(void); /* get and clear naca physid, wait for + master to copy new code to 0 */ +#else +struct kimage; +extern void machine_kexec_simple(struct kimage *image); +#endif + +#endif /* ! __ASSEMBLY__ */ +#endif /* _ASM_POWERPC_KEXEC_H */ diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h index 451b345..629ca96 100644 --- a/include/asm-powerpc/machdep.h +++ b/include/asm-powerpc/machdep.h @@ -80,6 +80,7 @@ struct machdep_calls { void (*iommu_dev_setup)(struct pci_dev *dev); void (*iommu_bus_setup)(struct pci_bus *bus); void (*irq_bus_setup)(struct pci_bus *bus); + int (*set_dabr)(unsigned long dabr); #endif int (*probe)(int platform); diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h index 5b2ecbc..b5da0b8 100644 --- a/include/asm-powerpc/system.h +++ b/include/asm-powerpc/system.h @@ -359,5 +359,53 @@ extern void reloc_got2(unsigned long); #define PTRRELOC(x) ((typeof(x)) add_reloc_offset((unsigned long)(x))) +static inline void create_instruction(unsigned long addr, unsigned int instr) +{ + unsigned int *p; + p = (unsigned int *)addr; + *p = instr; + asm ("dcbst 0, %0; sync; icbi 0,%0; sync; isync" : : "r" (p)); +} + +/* Flags for create_branch: + * "b" == create_branch(addr, target, 0); + * "ba" == create_branch(addr, target, BRANCH_ABSOLUTE); + * "bl" == create_branch(addr, target, BRANCH_SET_LINK); + * "bla" == create_branch(addr, target, BRANCH_ABSOLUTE | BRANCH_SET_LINK); + */ +#define BRANCH_SET_LINK 0x1 +#define BRANCH_ABSOLUTE 0x2 + +static inline void create_branch(unsigned long addr, + unsigned long target, int flags) +{ + unsigned int instruction; + + if (! (flags & BRANCH_ABSOLUTE)) + target = target - addr; + + /* Mask out the flags and target, so they don't step on each other. */ + instruction = 0x48000000 | (flags & 0x3) | (target & 0x03FFFFFC); + + create_instruction(addr, instruction); +} + +static inline void create_function_call(unsigned long addr, void * func) +{ + unsigned long func_addr; + +#ifdef CONFIG_PPC64 + /* + * On PPC64 the function pointer actually points to the function's + * descriptor. The first entry in the descriptor is the address + * of the function text. + */ + func_addr = *(unsigned long *)func; +#else + func_addr = (unsigned long)func; +#endif + create_branch(addr, func_addr, BRANCH_SET_LINK); +} + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_SYSTEM_H */ diff --git a/include/asm-ppc/kexec.h b/include/asm-ppc/kexec.h deleted file mode 100644 index 6d2aa0a..0000000 --- a/include/asm-ppc/kexec.h +++ /dev/null @@ -1,40 +0,0 @@ -#ifndef _PPC_KEXEC_H -#define _PPC_KEXEC_H - -#ifdef CONFIG_KEXEC - -/* - * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. - * I.e. Maximum page that is mapped directly into kernel memory, - * and kmap is not required. - * - * Someone correct me if FIXADDR_START - PAGEOFFSET is not the correct - * calculation for the amount of memory directly mappable into the - * kernel memory space. - */ - -/* Maximum physical address we can use pages from */ -#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) -/* Maximum address we can reach in physical address mode */ -#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) -/* Maximum address we can use for the control code buffer */ -#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE - -#define KEXEC_CONTROL_CODE_SIZE 4096 - -/* The native architecture */ -#define KEXEC_ARCH KEXEC_ARCH_PPC - -#ifndef __ASSEMBLY__ - -extern void *crash_notes; - -struct kimage; - -extern void machine_kexec_simple(struct kimage *image); - -#endif /* __ASSEMBLY__ */ - -#endif /* CONFIG_KEXEC */ - -#endif /* _PPC_KEXEC_H */ diff --git a/include/asm-ppc64/kexec.h b/include/asm-ppc64/kexec.h deleted file mode 100644 index 511908a..0000000 --- a/include/asm-ppc64/kexec.h +++ /dev/null @@ -1,41 +0,0 @@ -#ifndef _PPC64_KEXEC_H -#define _PPC64_KEXEC_H - -/* - * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. - * I.e. Maximum page that is mapped directly into kernel memory, - * and kmap is not required. - */ - -/* Maximum physical address we can use pages from */ -/* XXX: since we copy virt we can use any page we allocate */ -#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) - -/* Maximum address we can reach in physical address mode */ -/* XXX: I want to allow initrd in highmem. otherwise set to rmo on lpar */ -#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) - -/* Maximum address we can use for the control code buffer */ -/* XXX: unused today, ppc32 uses TASK_SIZE, probably left over from use_mm */ -#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) - -/* XXX: today we don't use this at all, althogh we have a static stack */ -#define KEXEC_CONTROL_CODE_SIZE 4096 - -/* The native architecture */ -#define KEXEC_ARCH KEXEC_ARCH_PPC64 - -#define MAX_NOTE_BYTES 1024 - -#ifndef __ASSEMBLY__ - -typedef u32 note_buf_t[MAX_NOTE_BYTES/4]; - -extern note_buf_t crash_notes[]; - -extern void kexec_smp_wait(void); /* get and clear naca physid, wait for - master to copy new code to 0 */ - -#endif /* __ASSEMBLY__ */ -#endif /* _PPC_KEXEC_H */ - diff --git a/include/asm-ppc64/plpar_wrappers.h b/include/asm-ppc64/plpar_wrappers.h deleted file mode 100644 index 72dd244..0000000 --- a/include/asm-ppc64/plpar_wrappers.h +++ /dev/null @@ -1,120 +0,0 @@ -#ifndef _PPC64_PLPAR_WRAPPERS_H -#define _PPC64_PLPAR_WRAPPERS_H - -#include <asm/hvcall.h> - -static inline long poll_pending(void) -{ - unsigned long dummy; - return plpar_hcall(H_POLL_PENDING, 0, 0, 0, 0, - &dummy, &dummy, &dummy); -} - -static inline long prod_processor(void) -{ - plpar_hcall_norets(H_PROD); - return(0); -} - -static inline long cede_processor(void) -{ - plpar_hcall_norets(H_CEDE); - return(0); -} - -static inline long register_vpa(unsigned long flags, unsigned long proc, - unsigned long vpa) -{ - return plpar_hcall_norets(H_REGISTER_VPA, flags, proc, vpa); -} - -void vpa_init(int cpu); - -static inline long plpar_pte_remove(unsigned long flags, - unsigned long ptex, - unsigned long avpn, - unsigned long *old_pteh_ret, - unsigned long *old_ptel_ret) -{ - unsigned long dummy; - return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0, - old_pteh_ret, old_ptel_ret, &dummy); -} - -static inline long plpar_pte_read(unsigned long flags, - unsigned long ptex, - unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) -{ - unsigned long dummy; - return plpar_hcall(H_READ, flags, ptex, 0, 0, - old_pteh_ret, old_ptel_ret, &dummy); -} - -static inline long plpar_pte_protect(unsigned long flags, - unsigned long ptex, - unsigned long avpn) -{ - return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn); -} - -static inline long plpar_tce_get(unsigned long liobn, - unsigned long ioba, - unsigned long *tce_ret) -{ - unsigned long dummy; - return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0, - tce_ret, &dummy, &dummy); -} - -static inline long plpar_tce_put(unsigned long liobn, - unsigned long ioba, - unsigned long tceval) -{ - return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval); -} - -static inline long plpar_tce_put_indirect(unsigned long liobn, - unsigned long ioba, - unsigned long page, - unsigned long count) -{ - return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count); -} - -static inline long plpar_tce_stuff(unsigned long liobn, - unsigned long ioba, - unsigned long tceval, - unsigned long count) -{ - return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count); -} - -static inline long plpar_get_term_char(unsigned long termno, - unsigned long *len_ret, - char *buf_ret) -{ - unsigned long *lbuf = (unsigned long *)buf_ret; /* ToDo: alignment? */ - return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0, - len_ret, lbuf+0, lbuf+1); -} - -static inline long plpar_put_term_char(unsigned long termno, - unsigned long len, - const char *buffer) -{ - unsigned long *lbuf = (unsigned long *)buffer; /* ToDo: alignment? */ - return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0], - lbuf[1]); -} - -static inline long plpar_set_xdabr(unsigned long address, unsigned long flags) -{ - return plpar_hcall_norets(H_SET_XDABR, address, flags); -} - -static inline long plpar_set_dabr(unsigned long val) -{ - return plpar_hcall_norets(H_SET_DABR, val); -} - -#endif /* _PPC64_PLPAR_WRAPPERS_H */ diff --git a/include/asm-ppc64/smp.h b/include/asm-ppc64/smp.h index 0f42fcc..ba0f5c8 100644 --- a/include/asm-ppc64/smp.h +++ b/include/asm-ppc64/smp.h @@ -79,20 +79,13 @@ extern int smt_enabled_at_boot; extern int smp_mpic_probe(void); extern void smp_mpic_setup_cpu(int cpu); extern void smp_generic_kick_cpu(int nr); +extern void smp_release_cpus(void); extern void smp_generic_give_timebase(void); extern void smp_generic_take_timebase(void); extern struct smp_ops_t *smp_ops; -#ifdef CONFIG_PPC_PSERIES -void vpa_init(int cpu); -#else -static inline void vpa_init(int cpu) -{ -} -#endif /* CONFIG_PPC_PSERIES */ - #endif /* __ASSEMBLY__ */ #endif /* !(_PPC64_SMP_H) */ |
