W: http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html
S: Supported
+ AMD IOMMU (AMD-VI)
+ P: Joerg Roedel
+ M: joerg.roedel@amd.com
+ L: iommu@lists.linux-foundation.org
+ S: Supported
+
AMS (Apple Motion Sensor) DRIVER
P: Stelian Pop
M: stelian@popies.net
L: linuxppc-dev@ozlabs.org
S: Maintained
-LINUX FOR POWERPC EMBEDDED MPC52XX
+LINUX FOR POWERPC EMBEDDED MPC5XXX
P: Sylvain Munaut
M: tnt@246tNt.com
P: Grant Likely
M: grant.likely@secretlab.ca
-W: http://www.246tNt.com/mpc52xx/
-W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
S: Maintained
+FRED=42
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 26
KBUILD_AFLAGS += -gdwarf-2
endif
+ ifdef CONFIG_FTRACE
+ KBUILD_CFLAGS += -pg
+ endif
+
# We trigger additional mismatches with less inlining
ifdef CONFIG_DEBUG_SECTION_MISMATCH
KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
bool
default y
+config HAVE_LATENCYTOP_SUPPORT
+ def_bool y
+
config TRACE_IRQFLAGS_SUPPORT
bool
depends on PPC64
config PPC
bool
default y
+ select HAVE_DYNAMIC_FTRACE
+ select HAVE_FTRACE
select HAVE_IDE
- select HAVE_OPROFILE
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_LMB
+ select HAVE_DMA_ATTRS if PPC64
+ select HAVE_OPROFILE
config EARLY_PRINTK
bool
strongly in flux, so no good recommendation can be made.
config CRASH_DUMP
- bool "Build a kdump crash kernel (EXPERIMENTAL)"
- depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
+ bool "Build a kdump crash kernel"
+ depends on PPC_MULTIPLATFORM && PPC64
help
Build a kernel suitable for use as a kdump capture kernel.
The kernel will be linked at a different address than normal, and
some command-line options at build time by entering them here. In
most cases you will need to specify the root device here.
+config EXTRA_TARGETS
+ string "Additional default image types"
+ help
+ List additional targets to be built by the bootwrapper here (separated
+ by spaces). This is useful for targets that depend of device tree
+ files in the .dts directory.
+
+ Targets in this list will be build as part of the default build
+ target, or when the user does a 'make zImage' or a
+ 'make zImage.initrd'.
+
+ If unsure, leave blank
+
if !44x || BROKEN
config ARCH_WANTS_FREEZER_CONTROL
def_bool y
help
Freescale Localbus support
+config FSL_GTM
+ bool
+ depends on PPC_83xx || QUICC_ENGINE || CPM2
+ help
+ Freescale General-purpose Timers support
+
# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
config MCA
bool
CFLAGS_btext.o += -fPIC
endif
+ ifdef CONFIG_FTRACE
+ # Do not trace early boot code
+ CFLAGS_REMOVE_cputable.o = -pg
+ CFLAGS_REMOVE_prom_init.o = -pg
+
+ ifdef CONFIG_DYNAMIC_FTRACE
+ # dynamic ftrace setup.
+ CFLAGS_REMOVE_ftrace.o = -pg
+ endif
+
+ endif
+
obj-y := cputable.o ptrace.o syscalls.o \
irq.o align.o signal_32.o pmc.o vdso.o \
init_task.o process.o systbl.o idle.o \
obj-$(CONFIG_IBMEBUS) += ibmebus.o
obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
+obj-$(CONFIG_E500) += idle_e500.o
obj-$(CONFIG_6xx) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
obj-$(CONFIG_TAU) += tau_6xx.o
obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o \
swsusp_$(CONFIG_WORD_SIZE).o
obj64-$(CONFIG_HIBERNATION) += swsusp_asm64.o
-obj-$(CONFIG_MODULES) += module_$(CONFIG_WORD_SIZE).o
+obj-$(CONFIG_MODULES) += module.o module_$(CONFIG_WORD_SIZE).o
obj-$(CONFIG_44x) += cpu_setup_44x.o
ifeq ($(CONFIG_PPC_MERGE),y)
obj-$(CONFIG_AUDIT) += audit.o
obj64-$(CONFIG_AUDIT) += compat_audit.o
+ obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
+
obj-$(CONFIG_8XX_MINIMAL_FPEMU) += softemu8xx.o
ifneq ($(CONFIG_PPC_INDIRECT_IO),y)
#include <asm/ppc_asm.h>
#include <asm/asm-offsets.h>
#include <asm/unistd.h>
+ #include <asm/ftrace.h>
#undef SHOW_SYSCALLS
#undef SHOW_SYSCALLS_TASK
#endif
#ifdef CONFIG_BOOKE
-#include "head_booke.h"
-#define TRANSFER_TO_HANDLER_EXC_LEVEL(exc_level) \
- mtspr exc_level##_SPRG,r8; \
- BOOKE_LOAD_EXC_LEVEL_STACK(exc_level); \
- lwz r0,GPR10-INT_FRAME_SIZE(r8); \
- stw r0,GPR10(r11); \
- lwz r0,GPR11-INT_FRAME_SIZE(r8); \
- stw r0,GPR11(r11); \
- mfspr r8,exc_level##_SPRG
-
.globl mcheck_transfer_to_handler
mcheck_transfer_to_handler:
- TRANSFER_TO_HANDLER_EXC_LEVEL(MCHECK)
- b transfer_to_handler_full
+ mfspr r0,SPRN_DSRR0
+ stw r0,_DSRR0(r11)
+ mfspr r0,SPRN_DSRR1
+ stw r0,_DSRR1(r11)
+ /* fall through */
.globl debug_transfer_to_handler
debug_transfer_to_handler:
- TRANSFER_TO_HANDLER_EXC_LEVEL(DEBUG)
- b transfer_to_handler_full
+ mfspr r0,SPRN_CSRR0
+ stw r0,_CSRR0(r11)
+ mfspr r0,SPRN_CSRR1
+ stw r0,_CSRR1(r11)
+ /* fall through */
.globl crit_transfer_to_handler
crit_transfer_to_handler:
- TRANSFER_TO_HANDLER_EXC_LEVEL(CRIT)
+#ifdef CONFIG_FSL_BOOKE
+ mfspr r0,SPRN_MAS0
+ stw r0,MAS0(r11)
+ mfspr r0,SPRN_MAS1
+ stw r0,MAS1(r11)
+ mfspr r0,SPRN_MAS2
+ stw r0,MAS2(r11)
+ mfspr r0,SPRN_MAS3
+ stw r0,MAS3(r11)
+ mfspr r0,SPRN_MAS6
+ stw r0,MAS6(r11)
+#ifdef CONFIG_PHYS_64BIT
+ mfspr r0,SPRN_MAS7
+ stw r0,MAS7(r11)
+#endif /* CONFIG_PHYS_64BIT */
+#endif /* CONFIG_FSL_BOOKE */
+#ifdef CONFIG_44x
+ mfspr r0,SPRN_MMUCR
+ stw r0,MMUCR(r11)
+#endif
+ mfspr r0,SPRN_SRR0
+ stw r0,_SRR0(r11)
+ mfspr r0,SPRN_SRR1
+ stw r0,_SRR1(r11)
+
+ mfspr r8,SPRN_SPRG3
+ lwz r0,KSP_LIMIT(r8)
+ stw r0,SAVED_KSP_LIMIT(r11)
+ rlwimi r0,r1,0,0,(31-THREAD_SHIFT)
+ stw r0,KSP_LIMIT(r8)
/* fall through */
#endif
stw r0,GPR10(r11)
lwz r0,crit_r11@l(0)
stw r0,GPR11(r11)
+ mfspr r0,SPRN_SRR0
+ stw r0,crit_srr0@l(0)
+ mfspr r0,SPRN_SRR1
+ stw r0,crit_srr1@l(0)
+
+ mfspr r8,SPRN_SPRG3
+ lwz r0,KSP_LIMIT(r8)
+ stw r0,saved_ksp_limit@l(0)
+ rlwimi r0,r1,0,0,(31-THREAD_SHIFT)
+ stw r0,KSP_LIMIT(r8)
/* fall through */
#endif
cmplw r1,r9 /* if r1 <= ksp_limit */
ble- stack_ovf /* then the kernel stack overflowed */
5:
-#ifdef CONFIG_6xx
+#if defined(CONFIG_6xx) || defined(CONFIG_E500)
rlwinm r9,r1,0,0,31-THREAD_SHIFT
tophys(r9,r9) /* check local flags */
lwz r12,TI_LOCAL_FLAGS(r9)
mtcrf 0x01,r12
bt- 31-TLF_NAPPING,4f
-#endif /* CONFIG_6xx */
+ bt- 31-TLF_SLEEPING,7f
+#endif /* CONFIG_6xx || CONFIG_E500 */
.globl transfer_to_handler_cont
transfer_to_handler_cont:
3:
SYNC
RFI /* jump to handler, enable MMU */
-#ifdef CONFIG_6xx
+#if defined (CONFIG_6xx) || defined(CONFIG_E500)
4: rlwinm r12,r12,0,~_TLF_NAPPING
stw r12,TI_LOCAL_FLAGS(r9)
- b power_save_6xx_restore
+ b power_save_ppc32_restore
+
+7: rlwinm r12,r12,0,~_TLF_SLEEPING
+ stw r12,TI_LOCAL_FLAGS(r9)
+ lwz r9,_MSR(r11) /* if sleeping, clear MSR.EE */
+ rlwinm r9,r9,0,~MSR_EE
+ lwz r12,_LINK(r11) /* and return to address in LR */
+ b fast_exception_return
#endif
/*
/* Check current_thread_info()->flags */
rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
lwz r9,TI_FLAGS(r9)
- andi. r0,r9,(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK|_TIF_NEED_RESCHED)
+ andi. r0,r9,_TIF_USER_WORK_MASK
bne do_work
restore_user:
exc_lvl_rfi; \
b .; /* prevent prefetch past exc_lvl_rfi */
+#define RESTORE_xSRR(exc_lvl_srr0, exc_lvl_srr1) \
+ lwz r9,_##exc_lvl_srr0(r1); \
+ lwz r10,_##exc_lvl_srr1(r1); \
+ mtspr SPRN_##exc_lvl_srr0,r9; \
+ mtspr SPRN_##exc_lvl_srr1,r10;
+
+#if defined(CONFIG_FSL_BOOKE)
+#ifdef CONFIG_PHYS_64BIT
+#define RESTORE_MAS7 \
+ lwz r11,MAS7(r1); \
+ mtspr SPRN_MAS7,r11;
+#else
+#define RESTORE_MAS7
+#endif /* CONFIG_PHYS_64BIT */
+#define RESTORE_MMU_REGS \
+ lwz r9,MAS0(r1); \
+ lwz r10,MAS1(r1); \
+ lwz r11,MAS2(r1); \
+ mtspr SPRN_MAS0,r9; \
+ lwz r9,MAS3(r1); \
+ mtspr SPRN_MAS1,r10; \
+ lwz r10,MAS6(r1); \
+ mtspr SPRN_MAS2,r11; \
+ mtspr SPRN_MAS3,r9; \
+ mtspr SPRN_MAS6,r10; \
+ RESTORE_MAS7;
+#elif defined(CONFIG_44x)
+#define RESTORE_MMU_REGS \
+ lwz r9,MMUCR(r1); \
+ mtspr SPRN_MMUCR,r9;
+#else
+#define RESTORE_MMU_REGS
+#endif
+
+#ifdef CONFIG_40x
.globl ret_from_crit_exc
ret_from_crit_exc:
+ mfspr r9,SPRN_SPRG3
+ lis r10,saved_ksp_limit@ha;
+ lwz r10,saved_ksp_limit@l(r10);
+ tovirt(r9,r9);
+ stw r10,KSP_LIMIT(r9)
+ lis r9,crit_srr0@ha;
+ lwz r9,crit_srr0@l(r9);
+ lis r10,crit_srr1@ha;
+ lwz r10,crit_srr1@l(r10);
+ mtspr SPRN_SRR0,r9;
+ mtspr SPRN_SRR1,r10;
RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, RFCI)
+#endif /* CONFIG_40x */
#ifdef CONFIG_BOOKE
+ .globl ret_from_crit_exc
+ret_from_crit_exc:
+ mfspr r9,SPRN_SPRG3
+ lwz r10,SAVED_KSP_LIMIT(r1)
+ stw r10,KSP_LIMIT(r9)
+ RESTORE_xSRR(SRR0,SRR1);
+ RESTORE_MMU_REGS;
+ RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, RFCI)
+
.globl ret_from_debug_exc
ret_from_debug_exc:
+ mfspr r9,SPRN_SPRG3
+ lwz r10,SAVED_KSP_LIMIT(r1)
+ stw r10,KSP_LIMIT(r9)
+ lwz r9,THREAD_INFO-THREAD(r9)
+ rlwinm r10,r1,0,0,(31-THREAD_SHIFT)
+ lwz r10,TI_PREEMPT(r10)
+ stw r10,TI_PREEMPT(r9)
+ RESTORE_xSRR(SRR0,SRR1);
+ RESTORE_xSRR(CSRR0,CSRR1);
+ RESTORE_MMU_REGS;
RET_FROM_EXC_LEVEL(SPRN_DSRR0, SPRN_DSRR1, RFDI)
.globl ret_from_mcheck_exc
ret_from_mcheck_exc:
+ mfspr r9,SPRN_SPRG3
+ lwz r10,SAVED_KSP_LIMIT(r1)
+ stw r10,KSP_LIMIT(r9)
+ RESTORE_xSRR(SRR0,SRR1);
+ RESTORE_xSRR(CSRR0,CSRR1);
+ RESTORE_xSRR(DSRR0,DSRR1);
+ RESTORE_MMU_REGS;
RET_FROM_EXC_LEVEL(SPRN_MCSRR0, SPRN_MCSRR1, RFMCI)
#endif /* CONFIG_BOOKE */
lwz r9,TI_FLAGS(r9)
andi. r0,r9,_TIF_NEED_RESCHED
bne- do_resched
- andi. r0,r9,_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK
+ andi. r0,r9,_TIF_USER_WORK_MASK
beq restore_user
do_user_signal: /* r10 contains MSR_KERNEL here */
ori r10,r10,MSR_EE
/* XXX load up BATs and panic */
#endif /* CONFIG_PPC_RTAS */
+
+ #ifdef CONFIG_FTRACE
+ #ifdef CONFIG_DYNAMIC_FTRACE
+ _GLOBAL(mcount)
+ _GLOBAL(_mcount)
+ stwu r1,-48(r1)
+ stw r3, 12(r1)
+ stw r4, 16(r1)
+ stw r5, 20(r1)
+ stw r6, 24(r1)
+ mflr r3
+ stw r7, 28(r1)
+ mfcr r5
+ stw r8, 32(r1)
+ stw r9, 36(r1)
+ stw r10,40(r1)
+ stw r3, 44(r1)
+ stw r5, 8(r1)
+ subi r3, r3, MCOUNT_INSN_SIZE
+ .globl mcount_call
+ mcount_call:
+ bl ftrace_stub
+ nop
+ lwz r6, 8(r1)
+ lwz r0, 44(r1)
+ lwz r3, 12(r1)
+ mtctr r0
+ lwz r4, 16(r1)
+ mtcr r6
+ lwz r5, 20(r1)
+ lwz r6, 24(r1)
+ lwz r0, 52(r1)
+ lwz r7, 28(r1)
+ lwz r8, 32(r1)
+ mtlr r0
+ lwz r9, 36(r1)
+ lwz r10,40(r1)
+ addi r1, r1, 48
+ bctr
+
+ _GLOBAL(ftrace_caller)
+ /* Based off of objdump optput from glibc */
+ stwu r1,-48(r1)
+ stw r3, 12(r1)
+ stw r4, 16(r1)
+ stw r5, 20(r1)
+ stw r6, 24(r1)
+ mflr r3
+ lwz r4, 52(r1)
+ mfcr r5
+ stw r7, 28(r1)
+ stw r8, 32(r1)
+ stw r9, 36(r1)
+ stw r10,40(r1)
+ stw r3, 44(r1)
+ stw r5, 8(r1)
+ subi r3, r3, MCOUNT_INSN_SIZE
+ .globl ftrace_call
+ ftrace_call:
+ bl ftrace_stub
+ nop
+ lwz r6, 8(r1)
+ lwz r0, 44(r1)
+ lwz r3, 12(r1)
+ mtctr r0
+ lwz r4, 16(r1)
+ mtcr r6
+ lwz r5, 20(r1)
+ lwz r6, 24(r1)
+ lwz r0, 52(r1)
+ lwz r7, 28(r1)
+ lwz r8, 32(r1)
+ mtlr r0
+ lwz r9, 36(r1)
+ lwz r10,40(r1)
+ addi r1, r1, 48
+ bctr
+ #else
+ _GLOBAL(mcount)
+ _GLOBAL(_mcount)
+ stwu r1,-48(r1)
+ stw r3, 12(r1)
+ stw r4, 16(r1)
+ stw r5, 20(r1)
+ stw r6, 24(r1)
+ mflr r3
+ lwz r4, 52(r1)
+ mfcr r5
+ stw r7, 28(r1)
+ stw r8, 32(r1)
+ stw r9, 36(r1)
+ stw r10,40(r1)
+ stw r3, 44(r1)
+ stw r5, 8(r1)
+
+ subi r3, r3, MCOUNT_INSN_SIZE
+ LOAD_REG_ADDR(r5, ftrace_trace_function)
+ lwz r5,0(r5)
+
+ mtctr r5
+ bctrl
+
+ nop
+
+ lwz r6, 8(r1)
+ lwz r0, 44(r1)
+ lwz r3, 12(r1)
+ mtctr r0
+ lwz r4, 16(r1)
+ mtcr r6
+ lwz r5, 20(r1)
+ lwz r6, 24(r1)
+ lwz r0, 52(r1)
+ lwz r7, 28(r1)
+ lwz r8, 32(r1)
+ mtlr r0
+ lwz r9, 36(r1)
+ lwz r10,40(r1)
+ addi r1, r1, 48
+ bctr
+ #endif
+
+ _GLOBAL(ftrace_stub)
+ blr
+
+ #endif /* CONFIG_MCOUNT */
#include <asm/bug.h>
#include <asm/ptrace.h>
#include <asm/irqflags.h>
+ #include <asm/ftrace.h>
/*
* System calls.
mflr r20 /* Return to switch caller */
mfmsr r22
li r0, MSR_FP
+#ifdef CONFIG_VSX
+BEGIN_FTR_SECTION
+ oris r0,r0,MSR_VSX@h /* Disable VSX */
+END_FTR_SECTION_IFSET(CPU_FTR_VSX)
+#endif /* CONFIG_VSX */
#ifdef CONFIG_ALTIVEC
BEGIN_FTR_SECTION
oris r0,r0,MSR_VEC@h /* Disable altivec */
ld r8,KSP(r4) /* new stack pointer */
BEGIN_FTR_SECTION
- b 2f
-END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
-BEGIN_FTR_SECTION
+ BEGIN_FTR_SECTION_NESTED(95)
clrrdi r6,r8,28 /* get its ESID */
clrrdi r9,r1,28 /* get current sp ESID */
-END_FTR_SECTION_IFCLR(CPU_FTR_1T_SEGMENT)
-BEGIN_FTR_SECTION
+ FTR_SECTION_ELSE_NESTED(95)
clrrdi r6,r8,40 /* get its 1T ESID */
clrrdi r9,r1,40 /* get current sp 1T ESID */
-END_FTR_SECTION_IFSET(CPU_FTR_1T_SEGMENT)
+ ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_1T_SEGMENT, 95)
+FTR_SECTION_ELSE
+ b 2f
+ALT_FTR_SECTION_END_IFSET(CPU_FTR_SLB)
clrldi. r0,r6,2 /* is new ESID c00000000? */
cmpd cr1,r6,r9 /* or is new ESID the same as current ESID? */
cror eq,4*cr1+eq,eq
ld r0,16(r1)
mtlr r0
blr
+
+ #ifdef CONFIG_FTRACE
+ #ifdef CONFIG_DYNAMIC_FTRACE
+ _GLOBAL(mcount)
+ _GLOBAL(_mcount)
+ /* Taken from output of objdump from lib64/glibc */
+ mflr r3
+ stdu r1, -112(r1)
+ std r3, 128(r1)
+ subi r3, r3, MCOUNT_INSN_SIZE
+ .globl mcount_call
+ mcount_call:
+ bl ftrace_stub
+ nop
+ ld r0, 128(r1)
+ mtlr r0
+ addi r1, r1, 112
+ blr
+
+ _GLOBAL(ftrace_caller)
+ /* Taken from output of objdump from lib64/glibc */
+ mflr r3
+ ld r11, 0(r1)
+ stdu r1, -112(r1)
+ std r3, 128(r1)
+ ld r4, 16(r11)
+ subi r3, r3, MCOUNT_INSN_SIZE
+ .globl ftrace_call
+ ftrace_call:
+ bl ftrace_stub
+ nop
+ ld r0, 128(r1)
+ mtlr r0
+ addi r1, r1, 112
+ _GLOBAL(ftrace_stub)
+ blr
+ #else
+ _GLOBAL(mcount)
+ blr
+
+ _GLOBAL(_mcount)
+ /* Taken from output of objdump from lib64/glibc */
+ mflr r3
+ ld r11, 0(r1)
+ stdu r1, -112(r1)
+ std r3, 128(r1)
+ ld r4, 16(r11)
+
+ subi r3, r3, MCOUNT_INSN_SIZE
+ LOAD_REG_ADDR(r5,ftrace_trace_function)
+ ld r5,0(r5)
+ ld r5,0(r5)
+ mtctr r5
+ bctrl
+
+ nop
+ ld r0, 128(r1)
+ mtlr r0
+ addi r1, r1, 112
+ _GLOBAL(ftrace_stub)
+ blr
+
+ #endif
+ #endif
int distribute_irqs = 1;
- static inline unsigned long get_hard_enabled(void)
+ static inline notrace unsigned long get_hard_enabled(void)
{
unsigned long enabled;
return enabled;
}
- static inline void set_soft_enabled(unsigned long enable)
+ static inline notrace void set_soft_enabled(unsigned long enable)
{
__asm__ __volatile__("stb %0,%1(13)"
: : "r" (enable), "i" (offsetof(struct paca_struct, soft_enabled)));
}
- void raw_local_irq_restore(unsigned long en)
+ notrace void raw_local_irq_restore(unsigned long en)
{
/*
* get_paca()->soft_enabled = en;
{
if (ppc_md.init_IRQ)
ppc_md.init_IRQ();
+
+ exc_lvl_ctx_init();
+
irq_ctx_init();
}
+#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
+struct thread_info *critirq_ctx[NR_CPUS] __read_mostly;
+struct thread_info *dbgirq_ctx[NR_CPUS] __read_mostly;
+struct thread_info *mcheckirq_ctx[NR_CPUS] __read_mostly;
+
+void exc_lvl_ctx_init(void)
+{
+ struct thread_info *tp;
+ int i;
+
+ for_each_possible_cpu(i) {
+ memset((void *)critirq_ctx[i], 0, THREAD_SIZE);
+ tp = critirq_ctx[i];
+ tp->cpu = i;
+ tp->preempt_count = 0;
+
+#ifdef CONFIG_BOOKE
+ memset((void *)dbgirq_ctx[i], 0, THREAD_SIZE);
+ tp = dbgirq_ctx[i];
+ tp->cpu = i;
+ tp->preempt_count = 0;
+
+ memset((void *)mcheckirq_ctx[i], 0, THREAD_SIZE);
+ tp = mcheckirq_ctx[i];
+ tp->cpu = i;
+ tp->preempt_count = HARDIRQ_OFFSET;
+#endif
+ }
+}
+#endif
#ifdef CONFIG_IRQSTACKS
struct thread_info *softirq_ctx[NR_CPUS] __read_mostly;
host->revmap_type = revmap_type;
host->inval_irq = inval_irq;
host->ops = ops;
- host->of_node = of_node;
+ host->of_node = of_node_get(of_node);
if (host->ops->match == NULL)
host->ops->match = default_irq_host_match;
#include <asm/div64.h>
#include <asm/signal.h>
#include <asm/dcr.h>
+ #include <asm/ftrace.h>
#ifdef CONFIG_PPC32
extern void transfer_to_handler(void);
EXPORT_SYMBOL(sys_sigreturn);
#endif
+ #ifdef CONFIG_FTRACE
+ EXPORT_SYMBOL(_mcount);
+ #endif
+
EXPORT_SYMBOL(strcpy);
EXPORT_SYMBOL(strncpy);
EXPORT_SYMBOL(strcat);
#ifdef CONFIG_ALTIVEC
EXPORT_SYMBOL(giveup_altivec);
#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_VSX
+EXPORT_SYMBOL(giveup_vsx);
+#endif /* CONFIG_VSX */
#ifdef CONFIG_SPE
EXPORT_SYMBOL(giveup_spe);
#endif /* CONFIG_SPE */
* from the address that it was linked at, so we must use RELOC/PTRRELOC
* to access static data (including strings). -- paulus
*/
- unsigned long __init early_init(unsigned long dt_ptr)
+ notrace unsigned long __init early_init(unsigned long dt_ptr)
{
unsigned long offset = reloc_offset();
struct cpu_spec *spec;
PTRRELOC(&__start___ftr_fixup),
PTRRELOC(&__stop___ftr_fixup));
+ do_lwsync_fixups(spec->cpu_features,
+ PTRRELOC(&__start___lwsync_fixup),
+ PTRRELOC(&__stop___lwsync_fixup));
+
return KERNELBASE + offset;
}
* This is called very early on the boot process, after a minimal
* MMU environment has been set up but before MMU_init is called.
*/
- void __init machine_init(unsigned long dt_ptr, unsigned long phys)
+ notrace void __init machine_init(unsigned long dt_ptr, unsigned long phys)
{
/* Enable early debugging if any specified (see udbg.h) */
udbg_early_init();
ppc_md.power_save = ppc6xx_idle;
#endif
+#ifdef CONFIG_E500
+ if (cpu_has_feature(CPU_FTR_CAN_DOZE) ||
+ cpu_has_feature(CPU_FTR_CAN_NAP))
+ ppc_md.power_save = e500_idle;
+#endif
if (ppc_md.progress)
ppc_md.progress("id mach(): done", 0x200);
}
#ifdef CONFIG_BOOKE_WDT
/* Checks wdt=x and wdt_period=xx command-line option */
- int __init early_parse_wdt(char *p)
+ notrace int __init early_parse_wdt(char *p)
{
if (p && strncmp(p, "0", 1) != 0)
booke_wdt_enabled = 1;
#define irqstack_early_init()
#endif
+#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
+static void __init exc_lvl_early_init(void)
+{
+ unsigned int i;
+
+ /* interrupt stacks must be in lowmem, we get that for free on ppc32
+ * as the lmb is limited to lowmem by LMB_REAL_LIMIT */
+ for_each_possible_cpu(i) {
+ critirq_ctx[i] = (struct thread_info *)
+ __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
+#ifdef CONFIG_BOOKE
+ dbgirq_ctx[i] = (struct thread_info *)
+ __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
+ mcheckirq_ctx[i] = (struct thread_info *)
+ __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
+#endif
+ }
+}
+#else
+#define exc_lvl_early_init()
+#endif
+
/* Warning, IO base is not yet inited */
void __init setup_arch(char **cmdline_p)
{
init_mm.end_data = (unsigned long) _edata;
init_mm.brk = klimit;
+ exc_lvl_early_init();
+
irqstack_early_init();
/* set up the bootmem stuff with available memory */
ALIGN_FUNCTION();
*(.text.head)
_text = .;
- *(.text .fixup .text.init.refok .exit.text.refok)
+ *(.text .fixup .text.init.refok .exit.text.refok __ftr_alt_*)
SCHED_TEXT
LOCK_TEXT
KPROBES_TEXT
NOTES
- BUG_TABLE
-
/*
* Init sections discarded at runtime
*/
*(__ftr_fixup)
__stop___ftr_fixup = .;
}
+ . = ALIGN(8);
+ __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) {
+ __start___lwsync_fixup = .;
+ *(__lwsync_fixup)
+ __stop___lwsync_fixup = .;
+ }
#ifdef CONFIG_PPC64
. = ALIGN(8);
__fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) {
obj-$(CONFIG_VIOCONS) += viocons.o
obj-$(CONFIG_VIOTAPE) += viotape.o
obj-$(CONFIG_HVCS) += hvcs.o
+obj-$(CONFIG_IBM_BSR) += bsr.o
obj-$(CONFIG_SGI_MBCS) += mbcs.o
obj-$(CONFIG_BRIQ_PANEL) += briq_panel.o
obj-$(CONFIG_BFIN_OTP) += bfin-otp.o
obj-$(CONFIG_MWAVE) += mwave/
obj-$(CONFIG_AGP) += agp/
- obj-$(CONFIG_DRM) += drm/
obj-$(CONFIG_PCMCIA) += pcmcia/
obj-$(CONFIG_IPMI_HANDLER) += ipmi/
return ret;
}
+static long viotap_unlocked_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ long rc;
+
+ lock_kernel();
+ rc = viotap_ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
+ unlock_kernel();
+ return rc;
+}
+
static int viotap_open(struct inode *inode, struct file *file)
{
HvLpEvent_Rc hvrc;
if (op == NULL)
return -ENOMEM;
+ lock_kernel();
get_dev_info(file->f_path.dentry->d_inode, &devi);
/* Note: We currently only support one mode! */
free_op:
free_op_struct(op);
+ unlock_kernel();
return ret;
}
}
const struct file_operations viotap_fops = {
- .owner = THIS_MODULE,
- .read = viotap_read,
- .write = viotap_write,
- .ioctl = viotap_ioctl,
- .open = viotap_open,
- .release = viotap_release,
+ .owner = THIS_MODULE,
+ .read = viotap_read,
+ .write = viotap_write,
+ .unlocked_ioctl = viotap_unlocked_ioctl,
+ .open = viotap_open,
+ .release = viotap_release,
};
/* Handle interrupt events for tape */
#endif
-EXPORT_SYMBOL(adb_controller);
EXPORT_SYMBOL(adb_client_list);
extern struct adb_driver via_macii_driver;
static struct class *adb_dev_class;
-struct adb_driver *adb_controller;
+static struct adb_driver *adb_controller;
BLOCKING_NOTIFIER_HEAD(adb_client_list);
static int adb_got_sleep;
static int adb_inited;
}
#endif /* CONFIG_PM */
-int __init adb_init(void)
+static int __init adb_init(void)
{
struct adb_driver *driver;
int i;
static int adb_open(struct inode *inode, struct file *file)
{
struct adbdev_state *state;
+ int ret = 0;
- if (iminor(inode) > 0 || adb_controller == NULL)
- return -ENXIO;
+ lock_kernel();
+ if (iminor(inode) > 0 || adb_controller == NULL) {
+ ret = -ENXIO;
+ goto out;
+ }
state = kmalloc(sizeof(struct adbdev_state), GFP_KERNEL);
- if (state == 0)
- return -ENOMEM;
+ if (state == 0) {
+ ret = -ENOMEM;
+ goto out;
+ }
file->private_data = state;
spin_lock_init(&state->lock);
atomic_set(&state->n_pending, 0);
init_waitqueue_head(&state->wait_queue);
state->inuse = 1;
- return 0;
+ out:
+ unlock_kernel();
+ return ret;
}
static int adb_release(struct inode *inode, struct file *file)
* the userland interface
*/
+ #include <linux/smp_lock.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/sysdev.h>
#include <linux/poll.h>
#include <linux/mutex.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
#include <asm/byteorder.h>
#include <asm/io.h>
#include <asm/sections.h>
#include <asm/abs_addr.h>
#include <asm/uaccess.h>
-#include <asm/of_device.h>
-#include <asm/of_platform.h>
#define VERSION "0.7"
#define AUTHOR "(c) 2005 Benjamin Herrenschmidt, IBM Corp."
{
struct device_node *np;
const u32 *data;
+ int ret = 0;
np = of_find_node_by_type(NULL, "smu");
if (np == NULL)
if (smu_cmdbuf_abs == 0) {
printk(KERN_ERR "SMU: Command buffer not allocated !\n");
- of_node_put(np);
- return -EINVAL;
+ ret = -EINVAL;
+ goto fail_np;
}
smu = alloc_bootmem(sizeof(struct smu_device));
- if (smu == NULL) {
- of_node_put(np);
- return -ENOMEM;
- }
- memset(smu, 0, sizeof(*smu));
spin_lock_init(&smu->lock);
INIT_LIST_HEAD(&smu->cmd_list);
smu->db_node = of_find_node_by_name(NULL, "smu-doorbell");
if (smu->db_node == NULL) {
printk(KERN_ERR "SMU: Can't find doorbell GPIO !\n");
- goto fail;
+ ret = -ENXIO;
+ goto fail_bootmem;
}
data = of_get_property(smu->db_node, "reg", NULL);
if (data == NULL) {
- of_node_put(smu->db_node);
- smu->db_node = NULL;
printk(KERN_ERR "SMU: Can't find doorbell GPIO address !\n");
- goto fail;
+ ret = -ENXIO;
+ goto fail_db_node;
}
/* Current setup has one doorbell GPIO that does both doorbell
smu->db_buf = ioremap(0x8000860c, 0x1000);
if (smu->db_buf == NULL) {
printk(KERN_ERR "SMU: Can't map doorbell buffer pointer !\n");
- goto fail;
+ ret = -ENXIO;
+ goto fail_msg_node;
}
/* U3 has an issue with NAP mode when issuing SMU commands */
sys_ctrler = SYS_CTRLER_SMU;
return 0;
- fail:
+fail_msg_node:
+ if (smu->msg_node)
+ of_node_put(smu->msg_node);
+fail_db_node:
+ of_node_put(smu->db_node);
+fail_bootmem:
+ free_bootmem((unsigned long)smu, sizeof(struct smu_device));
smu = NULL;
- return -ENXIO;
-
+fail_np:
+ of_node_put(np);
+ return ret;
}
pp->mode = smu_file_commands;
init_waitqueue_head(&pp->wait);
+ lock_kernel();
spin_lock_irqsave(&smu_clist_lock, flags);
list_add(&pp->list, &smu_clist);
spin_unlock_irqrestore(&smu_clist_lock, flags);
file->private_data = pp;
+ unlock_kernel();
return 0;
}
config MACB
tristate "Atmel MACB support"
- depends on AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263 || ARCH_AT91CAP9
+ depends on AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263 || ARCH_AT91SAM9G20 || ARCH_AT91CAP9
select PHYLIB
help
The Atmel MACB ethernet interface is found on many AT32 and AT91
Say Y here if you want to use the NE2000 compatible
controller on the Renesas H8/300 processor.
-source "drivers/net/fec_8xx/Kconfig"
source "drivers/net/fs_enet/Kconfig"
endif # NET_ETHERNET
/*
* m8xx_pcmcia.c - Linux PCMCIA socket driver for the mpc8xx series.
*
- * (C) 1999-2000 Magnus Damm <damm@bitsmart.com>
+ * (C) 1999-2000 Magnus Damm <damm@opensource.se>
* (C) 2001-2002 Montavista Software, Inc.
* <mlocke@mvista.com>
*
#include <linux/interrupt.h>
#include <linux/fsl_devices.h>
#include <linux/bitops.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/8xx_immap.h>
#include <asm/irq.h>
#include <asm/fs_pd.h>
-#include <asm/of_device.h>
-#include <asm/of_platform.h>
- #include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/ss.h>
#define VM_CAN_NONLINEAR 0x08000000 /* Has ->fault & does nonlinear pages */
#define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */
+#define VM_SAO 0x20000000 /* Strong Access Ordering (powerpc) */
#ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */
#define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
extern void free_area_init_nodes(unsigned long *max_zone_pfn);
extern void add_active_range(unsigned int nid, unsigned long start_pfn,
unsigned long end_pfn);
- extern void shrink_active_range(unsigned int nid, unsigned long old_end_pfn,
- unsigned long new_end_pfn);
+ extern void remove_active_range(unsigned int nid, unsigned long start_pfn,
+ unsigned long end_pfn);
extern void push_node_boundaries(unsigned int nid, unsigned long start_pfn,
unsigned long end_pfn);
extern void remove_all_active_ranges(void);
extern unsigned long find_max_pfn_with_active_regions(void);
extern void free_bootmem_with_active_regions(int nid,
unsigned long max_low_pfn);
+ typedef int (*work_fn_t)(unsigned long, unsigned long, void *);
+ extern void work_with_active_regions(int nid, work_fn_t work_fn, void *data);
extern void sparse_memory_present_with_active_regions(int nid);
#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
extern int early_pfn_to_nid(unsigned long pfn);
extern void show_mem(void);
extern void si_meminfo(struct sysinfo * val);
extern void si_meminfo_node(struct sysinfo *val, int nid);
+ extern int after_bootmem;
#ifdef CONFIG_NUMA
extern void setup_per_cpu_pageset(void);
if (pte_present(oldpte)) {
pte_t ptent;
- /* Avoid an SMP race with hardware updated dirty/clean
- * bits by wiping the pte and then setting the new pte
- * into place.
- */
- ptent = ptep_get_and_clear(mm, addr, pte);
+ ptent = ptep_modify_prot_start(mm, addr, pte);
ptent = pte_modify(ptent, newprot);
+
/*
* Avoid taking write faults for pages we know to be
* dirty.
*/
if (dirty_accountable && pte_dirty(ptent))
ptent = pte_mkwrite(ptent);
- set_pte_at(mm, addr, pte, ptent);
+
+ ptep_modify_prot_commit(mm, addr, pte, ptent);
#ifdef CONFIG_MIGRATION
} else if (!pte_file(oldpte)) {
swp_entry_t entry = pte_to_swp_entry(oldpte);
end = start + len;
if (end <= start)
return -ENOMEM;
- if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM))
+ if (!arch_validate_prot(prot))
return -EINVAL;
reqprot = prot;
projects / linux-2.6-block.git / commitdiff