Commit a456c0d9 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Pull powerpc fixes from Ben Herrenschmidt:
 "The main thing that caused problem was that CONFIG_CPU_LITTLE_ENDIAN
  got turned on with allyesconfig and such, which is not a very good
  idea especially since it requires a newer toolchain than what most
  people have.

  So we turned it into a choice instead that defaults to big endian"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/windfarm: Fix XServe G5 fan control Makefile issue
  arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory overflow
  powerpc/signals: Improved mark VSX not saved with small contexts fix
  powerpc/kdump: Adding symbols in vmcoreinfo to facilitate dump filtering
  powerpc: allyesconfig should not select CONFIG_CPU_LITTLE_ENDIAN
  powerpc: Fix error when cross building TAGS & cscope
  powerpc/booke: Only check for hugetlb in flush if vma != NULL
  powerpc/85xx: typo in dts: "interupt" (four devices)
  powerpc/8xx: mfspr SPRN_TBRx in lieu of mftb/mftbu is not supported
  powerpc/corenet64: compile with CONFIG_E{5,6}500_CPU well
parents 8ae516aa 721cb59e
......@@ -75,8 +75,10 @@ LDEMULATION := lppc
GNUTARGET := powerpcle
MULTIPLEWORD := -mno-multiple
else
ifeq ($(call cc-option-yn,-mbig-endian),y)
override CC += -mbig-endian
override AS += -mbig-endian
endif
override LD += -EB
LDEMULATION := ppc
GNUTARGET := powerpc
......@@ -128,7 +130,12 @@ CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5)
CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6)
CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7)
# Altivec option not allowed with e500mc64 in GCC.
ifeq ($(CONFIG_ALTIVEC),y)
E5500_CPU := -mcpu=powerpc64
else
E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
endif
CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
......
......@@ -637,14 +637,14 @@
tlu@2f000 {
compatible = "fsl,mpc8572-tlu", "fsl_tlu";
reg = <0x2f000 0x1000>;
interupts = <61 2 >;
interrupts = <61 2>;
interrupt-parent = <&mpic>;
};
tlu@15000 {
compatible = "fsl,mpc8572-tlu", "fsl_tlu";
reg = <0x15000 0x1000>;
interupts = <75 2>;
interrupts = <75 2>;
interrupt-parent = <&mpic>;
};
};
......
......@@ -547,14 +547,14 @@
tlu@2f000 {
compatible = "fsl,mpc8572-tlu", "fsl_tlu";
reg = <0x2f000 0x1000>;
interupts = <61 2 >;
interrupts = <61 2>;
interrupt-parent = <&mpic>;
};
tlu@15000 {
compatible = "fsl,mpc8572-tlu", "fsl_tlu";
reg = <0x15000 0x1000>;
interupts = <75 2>;
interrupts = <75 2>;
interrupt-parent = <&mpic>;
};
};
......
......@@ -583,14 +583,14 @@
tlu@2f000 {
compatible = "fsl,mpc8572-tlu", "fsl_tlu";
reg = <0x2f000 0x1000>;
interupts = <61 2 >;
interrupts = <61 2>;
interrupt-parent = <&mpic>;
};
tlu@15000 {
compatible = "fsl,mpc8572-tlu", "fsl_tlu";
reg = <0x15000 0x1000>;
interupts = <75 2>;
interrupts = <75 2>;
interrupt-parent = <&mpic>;
};
};
......
......@@ -545,14 +545,14 @@
tlu@2f000 {
compatible = "fsl,mpc8572-tlu", "fsl_tlu";
reg = <0x2f000 0x1000>;
interupts = <61 2 >;
interrupts = <61 2>;
interrupt-parent = <&mpic>;
};
tlu@15000 {
compatible = "fsl,mpc8572-tlu", "fsl_tlu";
reg = <0x15000 0x1000>;
interupts = <75 2>;
interrupts = <75 2>;
interrupt-parent = <&mpic>;
};
};
......
......@@ -71,18 +71,32 @@ udelay:
add r4,r4,r5
addi r4,r4,-1
divw r4,r4,r5 /* BUS ticks */
#ifdef CONFIG_8xx
1: mftbu r5
mftb r6
mftbu r7
#else
1: mfspr r5, SPRN_TBRU
mfspr r6, SPRN_TBRL
mfspr r7, SPRN_TBRU
#endif
cmpw 0,r5,r7
bne 1b /* Get [synced] base time */
addc r9,r6,r4 /* Compute end time */
addze r8,r5
#ifdef CONFIG_8xx
2: mftbu r5
#else
2: mfspr r5, SPRN_TBRU
#endif
cmpw 0,r5,r8
blt 2b
bgt 3f
#ifdef CONFIG_8xx
mftb r6
#else
mfspr r6, SPRN_TBRL
#endif
cmpw 0,r6,r9
blt 2b
3: blr
......@@ -16,6 +16,7 @@ struct vmemmap_backing {
unsigned long phys;
unsigned long virt_addr;
};
extern struct vmemmap_backing *vmemmap_list;
/*
* Functions that deal with pagetables that could be at any level of
......
......@@ -366,6 +366,8 @@ BEGIN_FTR_SECTION_NESTED(96); \
cmpwi dest,0; \
beq- 90b; \
END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
#elif defined(CONFIG_8xx)
#define MFTB(dest) mftb dest
#else
#define MFTB(dest) mfspr dest, SPRN_TBRL
#endif
......
......@@ -1174,12 +1174,19 @@
#else /* __powerpc64__ */
#if defined(CONFIG_8xx)
#define mftbl() ({unsigned long rval; \
asm volatile("mftbl %0" : "=r" (rval)); rval;})
#define mftbu() ({unsigned long rval; \
asm volatile("mftbu %0" : "=r" (rval)); rval;})
#else
#define mftbl() ({unsigned long rval; \
asm volatile("mfspr %0, %1" : "=r" (rval) : \
"i" (SPRN_TBRL)); rval;})
#define mftbu() ({unsigned long rval; \
asm volatile("mfspr %0, %1" : "=r" (rval) : \
"i" (SPRN_TBRU)); rval;})
#endif
#endif /* !__powerpc64__ */
#define mttbl(v) asm volatile("mttbl %0":: "r"(v))
......
......@@ -29,7 +29,11 @@ static inline cycles_t get_cycles(void)
ret = 0;
__asm__ __volatile__(
#ifdef CONFIG_8xx
"97: mftb %0\n"
#else
"97: mfspr %0, %2\n"
#endif
"99:\n"
".section __ftr_fixup,\"a\"\n"
".align 2\n"
......@@ -41,7 +45,11 @@ static inline cycles_t get_cycles(void)
" .long 0\n"
" .long 0\n"
".previous"
#ifdef CONFIG_8xx
: "=r" (ret) : "i" (CPU_FTR_601));
#else
: "=r" (ret) : "i" (CPU_FTR_601), "i" (SPRN_TBRL));
#endif
return ret;
#endif
}
......
......@@ -18,6 +18,7 @@
#include <linux/ftrace.h>
#include <asm/machdep.h>
#include <asm/pgalloc.h>
#include <asm/prom.h>
#include <asm/sections.h>
......@@ -75,6 +76,17 @@ void arch_crash_save_vmcoreinfo(void)
#ifndef CONFIG_NEED_MULTIPLE_NODES
VMCOREINFO_SYMBOL(contig_page_data);
#endif
#if defined(CONFIG_PPC64) && defined(CONFIG_SPARSEMEM_VMEMMAP)
VMCOREINFO_SYMBOL(vmemmap_list);
VMCOREINFO_SYMBOL(mmu_vmemmap_psize);
VMCOREINFO_SYMBOL(mmu_psize_defs);
VMCOREINFO_STRUCT_SIZE(vmemmap_backing);
VMCOREINFO_OFFSET(vmemmap_backing, list);
VMCOREINFO_OFFSET(vmemmap_backing, phys);
VMCOREINFO_OFFSET(vmemmap_backing, virt_addr);
VMCOREINFO_STRUCT_SIZE(mmu_psize_def);
VMCOREINFO_OFFSET(mmu_psize_def, shift);
#endif
}
/*
......
......@@ -210,7 +210,7 @@ static void __init nvram_print_partitions(char * label)
printk(KERN_WARNING "--------%s---------\n", label);
printk(KERN_WARNING "indx\t\tsig\tchks\tlen\tname\n");
list_for_each_entry(tmp_part, &nvram_partitions, partition) {
printk(KERN_WARNING "%4d \t%02x\t%02x\t%d\t%12s\n",
printk(KERN_WARNING "%4d \t%02x\t%02x\t%d\t%12.12s\n",
tmp_part->index, tmp_part->header.signature,
tmp_part->header.checksum, tmp_part->header.length,
tmp_part->header.name);
......
......@@ -445,6 +445,12 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
#endif /* CONFIG_ALTIVEC */
if (copy_fpr_to_user(&frame->mc_fregs, current))
return 1;
/*
* Clear the MSR VSX bit to indicate there is no valid state attached
* to this context, except in the specific case below where we set it.
*/
msr &= ~MSR_VSX;
#ifdef CONFIG_VSX
/*
* Copy VSR 0-31 upper half from thread_struct to local
......@@ -457,15 +463,7 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
if (copy_vsx_to_user(&frame->mc_vsregs, current))
return 1;
msr |= MSR_VSX;
} else if (!ctx_has_vsx_region)
/*
* With a small context structure we can't hold the VSX
* registers, hence clear the MSR value to indicate the state
* was not saved.
*/
msr &= ~MSR_VSX;
}
#endif /* CONFIG_VSX */
#ifdef CONFIG_SPE
/* save spe registers */
......
......@@ -122,6 +122,12 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
flush_fp_to_thread(current);
/* copy fpr regs and fpscr */
err |= copy_fpr_to_user(&sc->fp_regs, current);
/*
* Clear the MSR VSX bit to indicate there is no valid state attached
* to this context, except in the specific case below where we set it.
*/
msr &= ~MSR_VSX;
#ifdef CONFIG_VSX
/*
* Copy VSX low doubleword to local buffer for formatting,
......
......@@ -232,9 +232,15 @@ __do_get_tspec:
lwz r6,(CFG_TB_ORIG_STAMP+4)(r9)
/* Get a stable TB value */
#ifdef CONFIG_8xx
2: mftbu r3
mftbl r4
mftbu r0
#else
2: mfspr r3, SPRN_TBRU
mfspr r4, SPRN_TBRL
mfspr r0, SPRN_TBRU
#endif
cmplw cr0,r3,r0
bne- 2b
......
......@@ -117,6 +117,5 @@ void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
struct hstate *hstate = hstate_file(vma->vm_file);
unsigned long tsize = huge_page_shift(hstate) - 10;
__flush_tlb_page(vma ? vma->vm_mm : NULL, vmaddr, tsize, 0);
__flush_tlb_page(vma->vm_mm, vmaddr, tsize, 0);
}
......@@ -305,7 +305,7 @@ void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
{
#ifdef CONFIG_HUGETLB_PAGE
if (is_vm_hugetlb_page(vma))
if (vma && is_vm_hugetlb_page(vma))
flush_hugetlb_page(vma, vmaddr);
#endif
......
......@@ -404,13 +404,27 @@ config PPC_DOORBELL
endmenu
config CPU_LITTLE_ENDIAN
bool "Build little endian kernel"
default n
choice
prompt "Endianness selection"
default CPU_BIG_ENDIAN
help
This option selects whether a big endian or little endian kernel will
be built.
config CPU_BIG_ENDIAN
bool "Build big endian kernel"
help
Build a big endian kernel.
If unsure, select this option.
config CPU_LITTLE_ENDIAN
bool "Build little endian kernel"
help
Build a little endian kernel.
Note that if cross compiling a little endian kernel,
CROSS_COMPILE must point to a toolchain capable of targeting
little endian powerpc.
endchoice
......@@ -40,6 +40,7 @@ obj-$(CONFIG_WINDFARM_RM31) += windfarm_fcu_controls.o \
windfarm_ad7417_sensor.o \
windfarm_lm75_sensor.o \
windfarm_lm87_sensor.o \
windfarm_max6690_sensor.o \
windfarm_pid.o \
windfarm_cpufreq_clamp.o \
windfarm_rm31.o
......
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