Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge:
powerpc: Fix various syscall/signal/swapcontext bugs
[PATCH] powerpc: incorrect rmo_top handling in prom_init
[PATCH] powerpc: Fix incorrect pud_ERROR() message
[PATCH] powerpc: Expose SMT and L1 icache snoop userland features
[PATCH] powerpc: Fix windfarm_pm112 not starting all control loops
[PATCH] powerpc: Fix old g5 issues with windfarm
powerpc32: Fix timebase synchronization on 32-bit powermacs
powerpc: Turn off verbose debug output in powermac platform functions
powerpc: Fix might-sleep warning in program check exception handler
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 840aad4..c9a660e 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -92,7 +92,6 @@
DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
- DEFINE(TI_SIGFRAME, offsetof(struct thread_info, nvgprs_frame));
DEFINE(TI_TASK, offsetof(struct thread_info, task));
#ifdef CONFIG_PPC32
DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 1069645..e4e8137 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -53,8 +53,10 @@
PPC_FEATURE_HAS_MMU)
#define COMMON_USER_PPC64 (COMMON_USER | PPC_FEATURE_64)
#define COMMON_USER_POWER4 (COMMON_USER_PPC64 | PPC_FEATURE_POWER4)
-#define COMMON_USER_POWER5 (COMMON_USER_PPC64 | PPC_FEATURE_POWER5)
-#define COMMON_USER_POWER5_PLUS (COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS)
+#define COMMON_USER_POWER5 (COMMON_USER_PPC64 | PPC_FEATURE_POWER5 |\
+ PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
+#define COMMON_USER_POWER5_PLUS (COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS|\
+ PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
#define COMMON_USER_BOOKE (PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \
PPC_FEATURE_BOOKE)
@@ -267,7 +269,8 @@
.cpu_name = "Cell Broadband Engine",
.cpu_features = CPU_FTRS_CELL,
.cpu_user_features = COMMON_USER_PPC64 |
- PPC_FEATURE_CELL | PPC_FEATURE_HAS_ALTIVEC_COMP,
+ PPC_FEATURE_CELL | PPC_FEATURE_HAS_ALTIVEC_COMP |
+ PPC_FEATURE_SMT,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_be,
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index f20a672..4827ca1 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -227,7 +227,7 @@
MTMSRD(r10)
lwz r9,TI_FLAGS(r12)
li r8,-_LAST_ERRNO
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL|_TIF_RESTORE_SIGMASK)
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_USER_WORK_MASK|_TIF_PERSYSCALL_MASK)
bne- syscall_exit_work
cmplw 0,r3,r8
blt+ syscall_exit_cont
@@ -287,8 +287,10 @@
syscall_exit_work:
andi. r0,r9,_TIF_RESTOREALL
- bne- 2f
- cmplw 0,r3,r8
+ beq+ 0f
+ REST_NVGPRS(r1)
+ b 2f
+0: cmplw 0,r3,r8
blt+ 1f
andi. r0,r9,_TIF_NOERROR
bne- 1f
@@ -302,9 +304,7 @@
2: andi. r0,r9,(_TIF_PERSYSCALL_MASK)
beq 4f
- /* Clear per-syscall TIF flags if any are set, but _leave_
- _TIF_SAVE_NVGPRS set in r9 since we haven't dealt with that
- yet. */
+ /* Clear per-syscall TIF flags if any are set. */
li r11,_TIF_PERSYSCALL_MASK
addi r12,r12,TI_FLAGS
@@ -318,8 +318,13 @@
subi r12,r12,TI_FLAGS
4: /* Anything which requires enabling interrupts? */
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SAVE_NVGPRS)
- beq 7f
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
+ beq ret_from_except
+
+ /* Re-enable interrupts */
+ ori r10,r10,MSR_EE
+ SYNC
+ MTMSRD(r10)
/* Save NVGPRS if they're not saved already */
lwz r4,_TRAP(r1)
@@ -328,71 +333,11 @@
SAVE_NVGPRS(r1)
li r4,0xc00
stw r4,_TRAP(r1)
-
- /* Re-enable interrupts */
-5: ori r10,r10,MSR_EE
- SYNC
- MTMSRD(r10)
-
- andi. r0,r9,_TIF_SAVE_NVGPRS
- bne save_user_nvgprs
-
-save_user_nvgprs_cont:
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
- beq 7f
-
+5:
addi r3,r1,STACK_FRAME_OVERHEAD
bl do_syscall_trace_leave
- REST_NVGPRS(r1)
+ b ret_from_except_full
-6: lwz r3,GPR3(r1)
- LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
- SYNC
- MTMSRD(r10) /* disable interrupts again */
- rlwinm r12,r1,0,0,(31-THREAD_SHIFT) /* current_thread_info() */
- lwz r9,TI_FLAGS(r12)
-7:
- andi. r0,r9,_TIF_NEED_RESCHED
- bne 8f
- lwz r5,_MSR(r1)
- andi. r5,r5,MSR_PR
- beq ret_from_except
- andi. r0,r9,_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK
- beq ret_from_except
- b do_user_signal
-8:
- ori r10,r10,MSR_EE
- SYNC
- MTMSRD(r10) /* re-enable interrupts */
- bl schedule
- b 6b
-
-save_user_nvgprs:
- lwz r8,TI_SIGFRAME(r12)
-
-.macro savewords start, end
- 1: stw \start,4*(\start)(r8)
- .section __ex_table,"a"
- .align 2
- .long 1b,save_user_nvgprs_fault
- .previous
- .if \end - \start
- savewords "(\start+1)",\end
- .endif
-.endm
- savewords 14,31
- b save_user_nvgprs_cont
-
-
-save_user_nvgprs_fault:
- li r3,11 /* SIGSEGV */
- lwz r4,TI_TASK(r12)
- bl force_sigsegv
-
- rlwinm r12,r1,0,0,(31-THREAD_SHIFT) /* current_thread_info() */
- lwz r9,TI_FLAGS(r12)
- b save_user_nvgprs_cont
-
#ifdef SHOW_SYSCALLS
do_show_syscall:
#ifdef SHOW_SYSCALLS_TASK
@@ -490,6 +435,14 @@
stw r0,_TRAP(r1) /* register set saved */
b sys_clone
+ .globl ppc_swapcontext
+ppc_swapcontext:
+ SAVE_NVGPRS(r1)
+ lwz r0,_TRAP(r1)
+ rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */
+ stw r0,_TRAP(r1) /* register set saved */
+ b sys_swapcontext
+
/*
* Top-level page fault handling.
* This is in assembler because if do_page_fault tells us that
@@ -683,7 +636,7 @@
/* Check current_thread_info()->flags */
rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
lwz r9,TI_FLAGS(r9)
- andi. r0,r9,(_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL|_TIF_RESTORE_SIGMASK)
+ andi. r0,r9,(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK|_TIF_NEED_RESCHED)
bne do_work
restore_user:
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 388f861..24be0cf 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -160,7 +160,7 @@
mtmsrd r10,1
ld r9,TI_FLAGS(r12)
li r11,-_LAST_ERRNO
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL|_TIF_SAVE_NVGPRS|_TIF_NOERROR|_TIF_RESTORE_SIGMASK)
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_USER_WORK_MASK|_TIF_PERSYSCALL_MASK)
bne- syscall_exit_work
cmpld r3,r11
ld r5,_CCR(r1)
@@ -216,8 +216,10 @@
If TIF_NOERROR is set, just save r3 as it is. */
andi. r0,r9,_TIF_RESTOREALL
- bne- 2f
- cmpld r3,r11 /* r10 is -LAST_ERRNO */
+ beq+ 0f
+ REST_NVGPRS(r1)
+ b 2f
+0: cmpld r3,r11 /* r10 is -LAST_ERRNO */
blt+ 1f
andi. r0,r9,_TIF_NOERROR
bne- 1f
@@ -229,9 +231,7 @@
2: andi. r0,r9,(_TIF_PERSYSCALL_MASK)
beq 4f
- /* Clear per-syscall TIF flags if any are set, but _leave_
- _TIF_SAVE_NVGPRS set in r9 since we haven't dealt with that
- yet. */
+ /* Clear per-syscall TIF flags if any are set. */
li r11,_TIF_PERSYSCALL_MASK
addi r12,r12,TI_FLAGS
@@ -240,10 +240,9 @@
stdcx. r10,0,r12
bne- 3b
subi r12,r12,TI_FLAGS
-
-4: bl .save_nvgprs
- /* Anything else left to do? */
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SAVE_NVGPRS)
+
+4: /* Anything else left to do? */
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
beq .ret_from_except_lite
/* Re-enable interrupts */
@@ -251,26 +250,10 @@
ori r10,r10,MSR_EE
mtmsrd r10,1
- andi. r0,r9,_TIF_SAVE_NVGPRS
- bne save_user_nvgprs
-
- /* If tracing, re-enable interrupts and do it */
-save_user_nvgprs_cont:
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
- beq 5f
-
+ bl .save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .do_syscall_trace_leave
- REST_NVGPRS(r1)
- clrrdi r12,r1,THREAD_SHIFT
-
- /* Disable interrupts again and handle other work if any */
-5: mfmsr r10
- rldicl r10,r10,48,1
- rotldi r10,r10,16
- mtmsrd r10,1
-
- b .ret_from_except_lite
+ b .ret_from_except
/* Save non-volatile GPRs, if not already saved. */
_GLOBAL(save_nvgprs)
@@ -282,51 +265,6 @@
std r0,_TRAP(r1)
blr
-
-save_user_nvgprs:
- ld r10,TI_SIGFRAME(r12)
- andi. r0,r9,_TIF_32BIT
- beq- save_user_nvgprs_64
-
- /* 32-bit save to userspace */
-
-.macro savewords start, end
- 1: stw \start,4*(\start)(r10)
- .section __ex_table,"a"
- .align 3
- .llong 1b,save_user_nvgprs_fault
- .previous
- .if \end - \start
- savewords "(\start+1)",\end
- .endif
-.endm
- savewords 14,31
- b save_user_nvgprs_cont
-
-save_user_nvgprs_64:
- /* 64-bit save to userspace */
-
-.macro savelongs start, end
- 1: std \start,8*(\start)(r10)
- .section __ex_table,"a"
- .align 3
- .llong 1b,save_user_nvgprs_fault
- .previous
- .if \end - \start
- savelongs "(\start+1)",\end
- .endif
-.endm
- savelongs 14,31
- b save_user_nvgprs_cont
-
-save_user_nvgprs_fault:
- li r3,11 /* SIGSEGV */
- ld r4,TI_TASK(r12)
- bl .force_sigsegv
-
- clrrdi r12,r1,THREAD_SHIFT
- ld r9,TI_FLAGS(r12)
- b save_user_nvgprs_cont
/*
* The sigsuspend and rt_sigsuspend system calls can call do_signal
@@ -352,6 +290,16 @@
bl .sys_clone
b syscall_exit
+_GLOBAL(ppc32_swapcontext)
+ bl .save_nvgprs
+ bl .compat_sys_swapcontext
+ b syscall_exit
+
+_GLOBAL(ppc64_swapcontext)
+ bl .save_nvgprs
+ bl .sys_swapcontext
+ b syscall_exit
+
_GLOBAL(ret_from_fork)
bl .schedule_tail
REST_NVGPRS(r1)
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index d34fe53..813c2cd 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -978,7 +978,7 @@
if (size == 0)
continue;
prom_debug(" %x %x\n", base, size);
- if (base == 0)
+ if (base == 0 && (RELOC(of_platform) & PLATFORM_LPAR))
RELOC(rmo_top) = size;
if ((base + size) > RELOC(ram_top))
RELOC(ram_top) = base + size;
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 400793c..bcb8357 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -561,10 +561,7 @@
regs->result);
if ((test_thread_flag(TIF_SYSCALL_TRACE)
-#ifdef CONFIG_PPC64
- || test_thread_flag(TIF_SINGLESTEP)
-#endif
- )
+ || test_thread_flag(TIF_SINGLESTEP))
&& (current->ptrace & PT_PTRACED))
do_syscall_trace();
}
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index bd837b5d..d7a4e81 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -151,10 +151,7 @@
elf_greg_t64 *gregs = (elf_greg_t64 *)regs;
int i;
- if (!FULL_REGS(regs)) {
- set_thread_flag(TIF_SAVE_NVGPRS);
- current_thread_info()->nvgprs_frame = frame->mc_gregs;
- }
+ WARN_ON(!FULL_REGS(regs));
for (i = 0; i <= PT_RESULT; i ++) {
if (i == 14 && !FULL_REGS(regs))
@@ -215,15 +212,7 @@
static inline int save_general_regs(struct pt_regs *regs,
struct mcontext __user *frame)
{
- if (!FULL_REGS(regs)) {
- /* Zero out the unsaved GPRs to avoid information
- leak, and set TIF_SAVE_NVGPRS to ensure that the
- registers do actually get saved later. */
- memset(®s->gpr[14], 0, 18 * sizeof(unsigned long));
- current_thread_info()->nvgprs_frame = &frame->mc_gregs;
- set_thread_flag(TIF_SAVE_NVGPRS);
- }
-
+ WARN_ON(!FULL_REGS(regs));
return __copy_to_user(&frame->mc_gregs, regs, GP_REGS_SIZE);
}
@@ -826,8 +815,8 @@
}
long sys_swapcontext(struct ucontext __user *old_ctx,
- struct ucontext __user *new_ctx,
- int ctx_size, int r6, int r7, int r8, struct pt_regs *regs)
+ struct ucontext __user *new_ctx,
+ int ctx_size, int r6, int r7, int r8, struct pt_regs *regs)
{
unsigned char tmp;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 497a5d3..4324f8a 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -118,14 +118,7 @@
err |= __put_user(0, &sc->v_regs);
#endif /* CONFIG_ALTIVEC */
err |= __put_user(&sc->gp_regs, &sc->regs);
- if (!FULL_REGS(regs)) {
- /* Zero out the unsaved GPRs to avoid information
- leak, and set TIF_SAVE_NVGPRS to ensure that the
- registers do actually get saved later. */
- memset(®s->gpr[14], 0, 18 * sizeof(unsigned long));
- set_thread_flag(TIF_SAVE_NVGPRS);
- current_thread_info()->nvgprs_frame = &sc->gp_regs;
- }
+ WARN_ON(!FULL_REGS(regs));
err |= __copy_to_user(&sc->gp_regs, regs, GP_REGS_SIZE);
err |= __copy_to_user(&sc->fp_regs, ¤t->thread.fpr, FP_REGS_SIZE);
err |= __put_user(signr, &sc->signal);
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index 8a9f994..1ad55f0 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -288,7 +288,7 @@
COMPAT_SYS(clock_gettime)
COMPAT_SYS(clock_getres)
COMPAT_SYS(clock_nanosleep)
-COMPAT_SYS(swapcontext)
+SYSX(ppc64_swapcontext,ppc32_swapcontext,ppc_swapcontext)
COMPAT_SYS(tgkill)
COMPAT_SYS(utimes)
COMPAT_SYS(statfs64)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 7509aa6..98660ae 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -814,6 +814,8 @@
return;
}
+ local_irq_enable();
+
/* Try to emulate it if we should. */
if (reason & (REASON_ILLEGAL | REASON_PRIVILEGED)) {
switch (emulate_instruction(regs)) {
diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c
index 4ffd2a98..9b7150f 100644
--- a/arch/powerpc/platforms/powermac/pfunc_base.c
+++ b/arch/powerpc/platforms/powermac/pfunc_base.c
@@ -9,7 +9,12 @@
#include <asm/pmac_feature.h>
#include <asm/pmac_pfunc.h>
+#undef DEBUG
+#ifdef DEBUG
#define DBG(fmt...) printk(fmt)
+#else
+#define DBG(fmt...)
+#endif
static irqreturn_t macio_gpio_irq(int irq, void *data, struct pt_regs *regs)
{
diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c
index 356a739..4baa75b 100644
--- a/arch/powerpc/platforms/powermac/pfunc_core.c
+++ b/arch/powerpc/platforms/powermac/pfunc_core.c
@@ -20,7 +20,13 @@
#define LOG_PARSE(fmt...)
#define LOG_ERROR(fmt...) printk(fmt)
#define LOG_BLOB(t,b,c)
+
+#undef DEBUG
+#ifdef DEBUG
#define DBG(fmt...) printk(fmt)
+#else
+#define DBG(fmt...)
+#endif
/* Command numbers */
#define PMF_CMD_LIST 0
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 0df2cdc..6d64a9b 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -435,7 +435,7 @@
*/
static void (*pmac_tb_freeze)(int freeze);
-static unsigned long timebase;
+static u64 timebase;
static int tb_req;
static void smp_core99_give_timebase(void)
diff --git a/arch/ppc/kernel/asm-offsets.c b/arch/ppc/kernel/asm-offsets.c
index 7964bf6..77e4dc7 100644
--- a/arch/ppc/kernel/asm-offsets.c
+++ b/arch/ppc/kernel/asm-offsets.c
@@ -131,7 +131,6 @@
DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
- DEFINE(TI_SIGFRAME, offsetof(struct thread_info, nvgprs_frame));
DEFINE(TI_TASK, offsetof(struct thread_info, task));
DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S
index a48b950..3a28159 100644
--- a/arch/ppc/kernel/entry.S
+++ b/arch/ppc/kernel/entry.S
@@ -227,7 +227,7 @@
MTMSRD(r10)
lwz r9,TI_FLAGS(r12)
li r8,-_LAST_ERRNO
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL)
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_USER_WORK_MASK|_TIF_PERSYSCALL_MASK)
bne- syscall_exit_work
cmplw 0,r3,r8
blt+ syscall_exit_cont
@@ -287,8 +287,10 @@
syscall_exit_work:
andi. r0,r9,_TIF_RESTOREALL
- bne- 2f
- cmplw 0,r3,r8
+ beq+ 0f
+ REST_NVGPRS(r1)
+ b 2f
+0: cmplw 0,r3,r8
blt+ 1f
andi. r0,r9,_TIF_NOERROR
bne- 1f
@@ -302,9 +304,7 @@
2: andi. r0,r9,(_TIF_PERSYSCALL_MASK)
beq 4f
- /* Clear per-syscall TIF flags if any are set, but _leave_
- _TIF_SAVE_NVGPRS set in r9 since we haven't dealt with that
- yet. */
+ /* Clear per-syscall TIF flags if any are set. */
li r11,_TIF_PERSYSCALL_MASK
addi r12,r12,TI_FLAGS
@@ -318,8 +318,13 @@
subi r12,r12,TI_FLAGS
4: /* Anything which requires enabling interrupts? */
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SAVE_NVGPRS)
- beq 7f
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
+ beq ret_from_except
+
+ /* Re-enable interrupts */
+ ori r10,r10,MSR_EE
+ SYNC
+ MTMSRD(r10)
/* Save NVGPRS if they're not saved already */
lwz r4,TRAP(r1)
@@ -328,71 +333,11 @@
SAVE_NVGPRS(r1)
li r4,0xc00
stw r4,TRAP(r1)
-
- /* Re-enable interrupts */
-5: ori r10,r10,MSR_EE
- SYNC
- MTMSRD(r10)
-
- andi. r0,r9,_TIF_SAVE_NVGPRS
- bne save_user_nvgprs
-
-save_user_nvgprs_cont:
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
- beq 7f
-
+5:
addi r3,r1,STACK_FRAME_OVERHEAD
bl do_syscall_trace_leave
- REST_NVGPRS(r1)
+ b ret_from_except_full
-6: lwz r3,GPR3(r1)
- LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
- SYNC
- MTMSRD(r10) /* disable interrupts again */
- rlwinm r12,r1,0,0,18 /* current_thread_info() */
- lwz r9,TI_FLAGS(r12)
-7:
- andi. r0,r9,_TIF_NEED_RESCHED
- bne 8f
- lwz r5,_MSR(r1)
- andi. r5,r5,MSR_PR
- beq ret_from_except
- andi. r0,r9,_TIF_SIGPENDING
- beq ret_from_except
- b do_user_signal
-8:
- ori r10,r10,MSR_EE
- SYNC
- MTMSRD(r10) /* re-enable interrupts */
- bl schedule
- b 6b
-
-save_user_nvgprs:
- lwz r8,TI_SIGFRAME(r12)
-
-.macro savewords start, end
- 1: stw \start,4*(\start)(r8)
- .section __ex_table,"a"
- .align 2
- .long 1b,save_user_nvgprs_fault
- .previous
- .if \end - \start
- savewords "(\start+1)",\end
- .endif
-.endm
- savewords 14,31
- b save_user_nvgprs_cont
-
-
-save_user_nvgprs_fault:
- li r3,11 /* SIGSEGV */
- lwz r4,TI_TASK(r12)
- bl force_sigsegv
-
- rlwinm r12,r1,0,0,18 /* current_thread_info() */
- lwz r9,TI_FLAGS(r12)
- b save_user_nvgprs_cont
-
#ifdef SHOW_SYSCALLS
do_show_syscall:
#ifdef SHOW_SYSCALLS_TASK
@@ -490,6 +435,14 @@
stw r0,TRAP(r1) /* register set saved */
b sys_clone
+ .globl ppc_swapcontext
+ppc_swapcontext:
+ SAVE_NVGPRS(r1)
+ lwz r0,TRAP(r1)
+ rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */
+ stw r0,TRAP(r1) /* register set saved */
+ b sys_swapcontext
+
/*
* Top-level page fault handling.
* This is in assembler because if do_page_fault tells us that
@@ -683,7 +636,7 @@
/* Check current_thread_info()->flags */
rlwinm r9,r1,0,0,18
lwz r9,TI_FLAGS(r9)
- andi. r0,r9,(_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL)
+ andi. r0,r9,(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK|_TIF_NEED_RESCHED)
bne do_work
restore_user:
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index bb8d5ef..6c0ba04 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -35,6 +35,8 @@
#include <linux/platform_device.h>
#include <linux/mutex.h>
+#include <asm/prom.h>
+
#include "windfarm.h"
#define VERSION "0.2"
@@ -465,6 +467,11 @@
{
DBG("wf: core loaded\n");
+ /* Don't register on old machines that use therm_pm72 for now */
+ if (machine_is_compatible("PowerMac7,2") ||
+ machine_is_compatible("PowerMac7,3") ||
+ machine_is_compatible("RackMac3,1"))
+ return -ENODEV;
platform_device_register(&wf_platform_device);
return 0;
}
diff --git a/drivers/macintosh/windfarm_cpufreq_clamp.c b/drivers/macintosh/windfarm_cpufreq_clamp.c
index 607dbac..81337cd 100644
--- a/drivers/macintosh/windfarm_cpufreq_clamp.c
+++ b/drivers/macintosh/windfarm_cpufreq_clamp.c
@@ -8,6 +8,8 @@
#include <linux/wait.h>
#include <linux/cpufreq.h>
+#include <asm/prom.h>
+
#include "windfarm.h"
#define VERSION "0.3"
@@ -74,6 +76,12 @@
{
struct wf_control *clamp;
+ /* Don't register on old machines that use therm_pm72 for now */
+ if (machine_is_compatible("PowerMac7,2") ||
+ machine_is_compatible("PowerMac7,3") ||
+ machine_is_compatible("RackMac3,1"))
+ return -ENODEV;
+
clamp = kmalloc(sizeof(struct wf_control), GFP_KERNEL);
if (clamp == NULL)
return -ENOMEM;
diff --git a/drivers/macintosh/windfarm_lm75_sensor.c b/drivers/macintosh/windfarm_lm75_sensor.c
index 906d3ec..423bfa24 100644
--- a/drivers/macintosh/windfarm_lm75_sensor.c
+++ b/drivers/macintosh/windfarm_lm75_sensor.c
@@ -25,7 +25,7 @@
#include "windfarm.h"
-#define VERSION "0.1"
+#define VERSION "0.2"
#undef DEBUG
@@ -113,6 +113,7 @@
const char *loc)
{
struct wf_lm75_sensor *lm;
+ int rc;
DBG("wf_lm75: creating %s device at address 0x%02x\n",
ds1775 ? "ds1775" : "lm75", addr);
@@ -139,9 +140,11 @@
lm->i2c.driver = &wf_lm75_driver;
strncpy(lm->i2c.name, lm->sens.name, I2C_NAME_SIZE-1);
- if (i2c_attach_client(&lm->i2c)) {
- printk(KERN_ERR "windfarm: failed to attach %s %s to i2c\n",
- ds1775 ? "ds1775" : "lm75", lm->i2c.name);
+ rc = i2c_attach_client(&lm->i2c);
+ if (rc) {
+ printk(KERN_ERR "windfarm: failed to attach %s %s to i2c,"
+ " err %d\n", ds1775 ? "ds1775" : "lm75",
+ lm->i2c.name, rc);
goto fail;
}
@@ -175,16 +178,22 @@
(dev = of_get_next_child(busnode, dev)) != NULL;) {
const char *loc =
get_property(dev, "hwsensor-location", NULL);
- u32 *reg = (u32 *)get_property(dev, "reg", NULL);
- DBG(" dev: %s... (loc: %p, reg: %p)\n", dev->name, loc, reg);
- if (loc == NULL || reg == NULL)
+ u8 addr;
+
+ /* We must re-match the adapter in order to properly check
+ * the channel on multibus setups
+ */
+ if (!pmac_i2c_match_adapter(dev, adapter))
+ continue;
+ addr = pmac_i2c_get_dev_addr(dev);
+ if (loc == NULL || addr == 0)
continue;
/* real lm75 */
if (device_is_compatible(dev, "lm75"))
- wf_lm75_create(adapter, *reg, 0, loc);
+ wf_lm75_create(adapter, addr, 0, loc);
/* ds1775 (compatible, better resolution */
else if (device_is_compatible(dev, "ds1775"))
- wf_lm75_create(adapter, *reg, 1, loc);
+ wf_lm75_create(adapter, addr, 1, loc);
}
return 0;
}
@@ -206,6 +215,11 @@
static int __init wf_lm75_sensor_init(void)
{
+ /* Don't register on old machines that use therm_pm72 for now */
+ if (machine_is_compatible("PowerMac7,2") ||
+ machine_is_compatible("PowerMac7,3") ||
+ machine_is_compatible("RackMac3,1"))
+ return -ENODEV;
return i2c_add_driver(&wf_lm75_driver);
}
diff --git a/drivers/macintosh/windfarm_max6690_sensor.c b/drivers/macintosh/windfarm_max6690_sensor.c
index 5b9ad6ca..8e99d40 100644
--- a/drivers/macintosh/windfarm_max6690_sensor.c
+++ b/drivers/macintosh/windfarm_max6690_sensor.c
@@ -17,7 +17,7 @@
#include "windfarm.h"
-#define VERSION "0.1"
+#define VERSION "0.2"
/* This currently only exports the external temperature sensor,
since that's all the control loops need. */
@@ -81,7 +81,7 @@
static void wf_max6690_create(struct i2c_adapter *adapter, u8 addr)
{
struct wf_6690_sensor *max;
- char *name = "u4-temp";
+ char *name = "backside-temp";
max = kzalloc(sizeof(struct wf_6690_sensor), GFP_KERNEL);
if (max == NULL) {
@@ -118,7 +118,6 @@
struct device_node *busnode, *dev = NULL;
struct pmac_i2c_bus *bus;
const char *loc;
- u32 *reg;
bus = pmac_i2c_adapter_to_bus(adapter);
if (bus == NULL)
@@ -126,16 +125,23 @@
busnode = pmac_i2c_get_bus_node(bus);
while ((dev = of_get_next_child(busnode, dev)) != NULL) {
+ u8 addr;
+
+ /* We must re-match the adapter in order to properly check
+ * the channel on multibus setups
+ */
+ if (!pmac_i2c_match_adapter(dev, adapter))
+ continue;
if (!device_is_compatible(dev, "max6690"))
continue;
+ addr = pmac_i2c_get_dev_addr(dev);
loc = get_property(dev, "hwsensor-location", NULL);
- reg = (u32 *) get_property(dev, "reg", NULL);
- if (!loc || !reg)
+ if (loc == NULL || addr == 0)
continue;
- printk("found max6690, loc=%s reg=%x\n", loc, *reg);
+ printk("found max6690, loc=%s addr=0x%02x\n", loc, addr);
if (strcmp(loc, "BACKSIDE"))
continue;
- wf_max6690_create(adapter, *reg);
+ wf_max6690_create(adapter, addr);
}
return 0;
@@ -153,6 +159,11 @@
static int __init wf_max6690_sensor_init(void)
{
+ /* Don't register on old machines that use therm_pm72 for now */
+ if (machine_is_compatible("PowerMac7,2") ||
+ machine_is_compatible("PowerMac7,3") ||
+ machine_is_compatible("RackMac3,1"))
+ return -ENODEV;
return i2c_add_driver(&wf_max6690_driver);
}
diff --git a/drivers/macintosh/windfarm_pm112.c b/drivers/macintosh/windfarm_pm112.c
index c2a4e68..ef66bf2 100644
--- a/drivers/macintosh/windfarm_pm112.c
+++ b/drivers/macintosh/windfarm_pm112.c
@@ -358,6 +358,7 @@
return;
if (!backside_tick) {
/* first time; initialize things */
+ printk(KERN_INFO "windfarm: Backside control loop started.\n");
backside_param.min = backside_fan->ops->get_min(backside_fan);
backside_param.max = backside_fan->ops->get_max(backside_fan);
wf_pid_init(&backside_pid, &backside_param);
@@ -407,6 +408,7 @@
return;
if (!drive_bay_tick) {
/* first time; initialize things */
+ printk(KERN_INFO "windfarm: Drive bay control loop started.\n");
drive_bay_prm.min = drive_bay_fan->ops->get_min(drive_bay_fan);
drive_bay_prm.max = drive_bay_fan->ops->get_max(drive_bay_fan);
wf_pid_init(&drive_bay_pid, &drive_bay_prm);
@@ -458,6 +460,7 @@
return;
if (!slots_started) {
/* first time; initialize things */
+ printk(KERN_INFO "windfarm: Slots control loop started.\n");
wf_pid_init(&slots_pid, &slots_param);
slots_started = 1;
}
@@ -504,6 +507,7 @@
if (!started) {
started = 1;
+ printk(KERN_INFO "windfarm: CPUs control loops started.\n");
for (i = 0; i < nr_cores; ++i) {
if (create_cpu_loop(i) < 0) {
failure_state = FAILURE_PERM;
@@ -594,8 +598,6 @@
{
unsigned int i;
- if (have_all_sensors)
- return;
if (!strncmp(sr->name, "cpu-temp-", 9)) {
i = sr->name[9] - '0';
if (sr->name[10] == 0 && i < NR_CORES &&
@@ -613,7 +615,7 @@
} else if (!strcmp(sr->name, "slots-power")) {
if (slots_power == NULL && wf_get_sensor(sr) == 0)
slots_power = sr;
- } else if (!strcmp(sr->name, "u4-temp")) {
+ } else if (!strcmp(sr->name, "backside-temp")) {
if (u4_temp == NULL && wf_get_sensor(sr) == 0)
u4_temp = sr;
} else
diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 90d005b..5638518 100644
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -20,6 +20,8 @@
#define PPC_FEATURE_POWER5_PLUS 0x00020000
#define PPC_FEATURE_CELL 0x00010000
#define PPC_FEATURE_BOOKE 0x00008000
+#define PPC_FEATURE_SMT 0x00004000
+#define PPC_FEATURE_ICACHE_SNOOP 0x00002000
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
diff --git a/include/asm-powerpc/pgtable-4k.h b/include/asm-powerpc/pgtable-4k.h
index e9590c0..80a7832 100644
--- a/include/asm-powerpc/pgtable-4k.h
+++ b/include/asm-powerpc/pgtable-4k.h
@@ -88,4 +88,4 @@
(((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1)))
#define pud_ERROR(e) \
- printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pud_val(e))
+ printk("%s:%d: bad pud %08lx.\n", __FILE__, __LINE__, pud_val(e))
diff --git a/include/asm-powerpc/thread_info.h b/include/asm-powerpc/thread_info.h
index 237fc2b..ffc7462 100644
--- a/include/asm-powerpc/thread_info.h
+++ b/include/asm-powerpc/thread_info.h
@@ -37,7 +37,6 @@
int preempt_count; /* 0 => preemptable,
<0 => BUG */
struct restart_block restart_block;
- void __user *nvgprs_frame;
/* low level flags - has atomic operations done on it */
unsigned long flags ____cacheline_aligned_in_smp;
};
@@ -120,7 +119,6 @@
#define TIF_MEMDIE 10
#define TIF_SECCOMP 11 /* secure computing */
#define TIF_RESTOREALL 12 /* Restore all regs (implies NOERROR) */
-#define TIF_SAVE_NVGPRS 13 /* Save r14-r31 in signal frame */
#define TIF_NOERROR 14 /* Force successful syscall return */
#define TIF_RESTORE_SIGMASK 15 /* Restore signal mask in do_signal */
@@ -137,15 +135,13 @@
#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
#define _TIF_RESTOREALL (1<<TIF_RESTOREALL)
-#define _TIF_SAVE_NVGPRS (1<<TIF_SAVE_NVGPRS)
#define _TIF_NOERROR (1<<TIF_NOERROR)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
#define _TIF_USER_WORK_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | \
- _TIF_NEED_RESCHED | _TIF_RESTOREALL | \
- _TIF_RESTORE_SIGMASK)
-#define _TIF_PERSYSCALL_MASK (_TIF_RESTOREALL|_TIF_NOERROR|_TIF_SAVE_NVGPRS)
+ _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
+#define _TIF_PERSYSCALL_MASK (_TIF_RESTOREALL|_TIF_NOERROR)
#endif /* __KERNEL__ */
