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-rw-r--r--arch/powerpc/kernel/asm-offsets.c2
-rw-r--r--arch/powerpc/kernel/cpu_setup_power4.S4
-rw-r--r--arch/powerpc/kernel/entry_32.S2
-rw-r--r--arch/powerpc/kernel/entry_64.S15
-rw-r--r--arch/powerpc/kernel/fpu.S10
-rw-r--r--arch/powerpc/kernel/head_64.S112
-rw-r--r--arch/powerpc/kernel/idle_power4.S8
-rw-r--r--arch/powerpc/kernel/irq.c12
-rw-r--r--arch/powerpc/kernel/lparcfg.c13
-rw-r--r--arch/powerpc/kernel/misc_32.S4
-rw-r--r--arch/powerpc/kernel/misc_64.S10
-rw-r--r--arch/powerpc/kernel/paca.c36
-rw-r--r--arch/powerpc/kernel/prom.c109
-rw-r--r--arch/powerpc/kernel/time.c2
14 files changed, 222 insertions, 117 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 56399c5c931..840aad43a98 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -135,7 +135,7 @@ int main(void)
DEFINE(PACA_EXMC, offsetof(struct paca_struct, exmc));
DEFINE(PACA_EXSLB, offsetof(struct paca_struct, exslb));
DEFINE(PACAEMERGSP, offsetof(struct paca_struct, emergency_sp));
- DEFINE(PACALPPACA, offsetof(struct paca_struct, lppaca));
+ DEFINE(PACALPPACAPTR, offsetof(struct paca_struct, lppaca_ptr));
DEFINE(PACAHWCPUID, offsetof(struct paca_struct, hw_cpu_id));
DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
diff --git a/arch/powerpc/kernel/cpu_setup_power4.S b/arch/powerpc/kernel/cpu_setup_power4.S
index cca942fe611..b61d86e7ceb 100644
--- a/arch/powerpc/kernel/cpu_setup_power4.S
+++ b/arch/powerpc/kernel/cpu_setup_power4.S
@@ -130,7 +130,7 @@ _GLOBAL(__save_cpu_setup)
mfcr r7
/* Get storage ptr */
- LOADADDR(r5,cpu_state_storage)
+ LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
/* We only deal with 970 for now */
mfspr r0,SPRN_PVR
@@ -164,7 +164,7 @@ _GLOBAL(__restore_cpu_setup)
/* Get storage ptr (FIXME when using anton reloc as we
* are running with translation disabled here
*/
- LOADADDR(r5,cpu_state_storage)
+ LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
/* We only deal with 970 for now */
mfspr r0,SPRN_PVR
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 036b71d2adf..d8da2a35c0a 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -988,7 +988,7 @@ _GLOBAL(enter_rtas)
stwu r1,-INT_FRAME_SIZE(r1)
mflr r0
stw r0,INT_FRAME_SIZE+4(r1)
- LOADADDR(r4, rtas)
+ LOAD_REG_ADDR(r4, rtas)
lis r6,1f@ha /* physical return address for rtas */
addi r6,r6,1f@l
tophys(r6,r6)
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index aacebb33e98..54203631886 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -511,7 +511,8 @@ restore:
cmpdi 0,r5,0
beq 4f
/* Check for pending interrupts (iSeries) */
- ld r3,PACALPPACA+LPPACAANYINT(r13)
+ ld r3,PACALPPACAPTR(r13)
+ ld r3,LPPACAANYINT(r3)
cmpdi r3,0
beq+ 4f /* skip do_IRQ if no interrupts */
@@ -689,9 +690,8 @@ _GLOBAL(enter_rtas)
std r6,PACASAVEDMSR(r13)
/* Setup our real return addr */
- SET_REG_TO_LABEL(r4,.rtas_return_loc)
- SET_REG_TO_CONST(r9,PAGE_OFFSET)
- sub r4,r4,r9
+ LOAD_REG_ADDR(r4,.rtas_return_loc)
+ clrldi r4,r4,2 /* convert to realmode address */
mtlr r4
li r0,0
@@ -706,7 +706,7 @@ _GLOBAL(enter_rtas)
sync /* disable interrupts so SRR0/1 */
mtmsrd r0 /* don't get trashed */
- SET_REG_TO_LABEL(r4,rtas)
+ LOAD_REG_ADDR(r4, rtas)
ld r5,RTASENTRY(r4) /* get the rtas->entry value */
ld r4,RTASBASE(r4) /* get the rtas->base value */
@@ -718,8 +718,7 @@ _GLOBAL(enter_rtas)
_STATIC(rtas_return_loc)
/* relocation is off at this point */
mfspr r4,SPRN_SPRG3 /* Get PACA */
- SET_REG_TO_CONST(r5, PAGE_OFFSET)
- sub r4,r4,r5 /* RELOC the PACA base pointer */
+ clrldi r4,r4,2 /* convert to realmode address */
mfmsr r6
li r0,MSR_RI
@@ -728,7 +727,7 @@ _STATIC(rtas_return_loc)
mtmsrd r6
ld r1,PACAR1(r4) /* Restore our SP */
- LOADADDR(r3,.rtas_restore_regs)
+ LOAD_REG_IMMEDIATE(r3,.rtas_restore_regs)
ld r4,PACASAVEDMSR(r4) /* Restore our MSR */
mtspr SPRN_SRR0,r3
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index b780b42c95f..e4362dfa37f 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -39,9 +39,9 @@ _GLOBAL(load_up_fpu)
* to another. Instead we call giveup_fpu in switch_to.
*/
#ifndef CONFIG_SMP
- LOADBASE(r3, last_task_used_math)
+ LOAD_REG_ADDRBASE(r3, last_task_used_math)
toreal(r3)
- PPC_LL r4,OFF(last_task_used_math)(r3)
+ PPC_LL r4,ADDROFF(last_task_used_math)(r3)
PPC_LCMPI 0,r4,0
beq 1f
toreal(r4)
@@ -77,7 +77,7 @@ _GLOBAL(load_up_fpu)
#ifndef CONFIG_SMP
subi r4,r5,THREAD
fromreal(r4)
- PPC_STL r4,OFF(last_task_used_math)(r3)
+ PPC_STL r4,ADDROFF(last_task_used_math)(r3)
#endif /* CONFIG_SMP */
/* restore registers and return */
/* we haven't used ctr or xer or lr */
@@ -113,8 +113,8 @@ _GLOBAL(giveup_fpu)
1:
#ifndef CONFIG_SMP
li r5,0
- LOADBASE(r4,last_task_used_math)
- PPC_STL r5,OFF(last_task_used_math)(r4)
+ LOAD_REG_ADDRBASE(r4,last_task_used_math)
+ PPC_STL r5,ADDROFF(last_task_used_math)(r4)
#endif /* CONFIG_SMP */
blr
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 1c066d12537..30826846634 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -154,12 +154,12 @@ _GLOBAL(__secondary_hold)
bne 100b
#ifdef CONFIG_HMT
- LOADADDR(r4, .hmt_init)
+ SET_REG_IMMEDIATE(r4, .hmt_init)
mtctr r4
bctr
#else
#ifdef CONFIG_SMP
- LOADADDR(r4, .pSeries_secondary_smp_init)
+ LOAD_REG_IMMEDIATE(r4, .pSeries_secondary_smp_init)
mtctr r4
mr r3,r24
bctr
@@ -205,9 +205,10 @@ exception_marker:
#define EX_LR 72
/*
- * We're short on space and time in the exception prolog, so we can't use
- * the normal LOADADDR macro. Normally we just need the low halfword of the
- * address, but for Kdump we need the whole low word.
+ * We're short on space and time in the exception prolog, so we can't
+ * use the normal SET_REG_IMMEDIATE macro. Normally we just need the
+ * low halfword of the address, but for Kdump we need the whole low
+ * word.
*/
#ifdef CONFIG_CRASH_DUMP
#define LOAD_HANDLER(reg, label) \
@@ -254,8 +255,9 @@ exception_marker:
#define EXCEPTION_PROLOG_ISERIES_2 \
mfmsr r10; \
- ld r11,PACALPPACA+LPPACASRR0(r13); \
- ld r12,PACALPPACA+LPPACASRR1(r13); \
+ ld r12,PACALPPACAPTR(r13); \
+ ld r11,LPPACASRR0(r12); \
+ ld r12,LPPACASRR1(r12); \
ori r10,r10,MSR_RI; \
mtmsrd r10,1
@@ -634,7 +636,8 @@ data_access_slb_iSeries:
std r12,PACA_EXSLB+EX_R12(r13)
mfspr r10,SPRN_SPRG1
std r10,PACA_EXSLB+EX_R13(r13)
- ld r12,PACALPPACA+LPPACASRR1(r13);
+ ld r12,PACALPPACAPTR(r13)
+ ld r12,LPPACASRR1(r12)
b .slb_miss_realmode
STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
@@ -644,7 +647,8 @@ instruction_access_slb_iSeries:
mtspr SPRN_SPRG1,r13 /* save r13 */
mfspr r13,SPRN_SPRG3 /* get paca address into r13 */
std r3,PACA_EXSLB+EX_R3(r13)
- ld r3,PACALPPACA+LPPACASRR0(r13) /* get SRR0 value */
+ ld r3,PACALPPACAPTR(r13)
+ ld r3,LPPACASRR0(r3) /* get SRR0 value */
std r9,PACA_EXSLB+EX_R9(r13)
mfcr r9
#ifdef __DISABLED__
@@ -656,7 +660,8 @@ instruction_access_slb_iSeries:
std r12,PACA_EXSLB+EX_R12(r13)
mfspr r10,SPRN_SPRG1
std r10,PACA_EXSLB+EX_R13(r13)
- ld r12,PACALPPACA+LPPACASRR1(r13);
+ ld r12,PACALPPACAPTR(r13)
+ ld r12,LPPACASRR1(r12)
b .slb_miss_realmode
#ifdef __DISABLED__
@@ -713,7 +718,7 @@ system_reset_iSeries:
lbz r23,PACAPROCSTART(r13) /* Test if this processor
* should start */
sync
- LOADADDR(r3,current_set)
+ LOAD_REG_IMMEDIATE(r3,current_set)
sldi r28,r24,3 /* get current_set[cpu#] */
ldx r3,r3,r28
addi r1,r3,THREAD_SIZE
@@ -745,17 +750,19 @@ iSeries_secondary_smp_loop:
.globl decrementer_iSeries_masked
decrementer_iSeries_masked:
li r11,1
- stb r11,PACALPPACA+LPPACADECRINT(r13)
- LOADBASE(r12,tb_ticks_per_jiffy)
- lwz r12,OFF(tb_ticks_per_jiffy)(r12)
+ ld r12,PACALPPACAPTR(r13)
+ stb r11,LPPACADECRINT(r12)
+ LOAD_REG_ADDRBASE(r12,tb_ticks_per_jiffy)
+ lwz r12,ADDROFF(tb_ticks_per_jiffy)(r12)
mtspr SPRN_DEC,r12
/* fall through */
.globl hardware_interrupt_iSeries_masked
hardware_interrupt_iSeries_masked:
mtcrf 0x80,r9 /* Restore regs */
- ld r11,PACALPPACA+LPPACASRR0(r13)
- ld r12,PACALPPACA+LPPACASRR1(r13)
+ ld r12,PACALPPACAPTR(r13)
+ ld r11,LPPACASRR0(r12)
+ ld r12,LPPACASRR1(r12)
mtspr SPRN_SRR0,r11
mtspr SPRN_SRR1,r12
ld r9,PACA_EXGEN+EX_R9(r13)
@@ -994,7 +1001,8 @@ _GLOBAL(slb_miss_realmode)
ld r3,PACA_EXSLB+EX_R3(r13)
lwz r9,PACA_EXSLB+EX_CCR(r13) /* get saved CR */
#ifdef CONFIG_PPC_ISERIES
- ld r11,PACALPPACA+LPPACASRR0(r13) /* get SRR0 value */
+ ld r11,PACALPPACAPTR(r13)
+ ld r11,LPPACASRR0(r11) /* get SRR0 value */
#endif /* CONFIG_PPC_ISERIES */
mtlr r10
@@ -1412,7 +1420,7 @@ _GLOBAL(pSeries_secondary_smp_init)
* physical cpu id in r24, we need to search the pacas to find
* which logical id maps to our physical one.
*/
- LOADADDR(r13, paca) /* Get base vaddr of paca array */
+ LOAD_REG_IMMEDIATE(r13, paca) /* Get base vaddr of paca array */
li r5,0 /* logical cpu id */
1: lhz r6,PACAHWCPUID(r13) /* Load HW procid from paca */
cmpw r6,r24 /* Compare to our id */
@@ -1446,8 +1454,8 @@ _GLOBAL(pSeries_secondary_smp_init)
#ifdef CONFIG_PPC_ISERIES
_STATIC(__start_initialization_iSeries)
/* Clear out the BSS */
- LOADADDR(r11,__bss_stop)
- LOADADDR(r8,__bss_start)
+ LOAD_REG_IMMEDIATE(r11,__bss_stop)
+ LOAD_REG_IMMEDIATE(r8,__bss_start)
sub r11,r11,r8 /* bss size */
addi r11,r11,7 /* round up to an even double word */
rldicl. r11,r11,61,3 /* shift right by 3 */
@@ -1458,17 +1466,17 @@ _STATIC(__start_initialization_iSeries)
3: stdu r0,8(r8)
bdnz 3b
4:
- LOADADDR(r1,init_thread_union)
+ LOAD_REG_IMMEDIATE(r1,init_thread_union)
addi r1,r1,THREAD_SIZE
li r0,0
stdu r0,-STACK_FRAME_OVERHEAD(r1)
- LOADADDR(r3,cpu_specs)
- LOADADDR(r4,cur_cpu_spec)
+ LOAD_REG_IMMEDIATE(r3,cpu_specs)
+ LOAD_REG_IMMEDIATE(r4,cur_cpu_spec)
li r5,0
bl .identify_cpu
- LOADADDR(r2,__toc_start)
+ LOAD_REG_IMMEDIATE(r2,__toc_start)
addi r2,r2,0x4000
addi r2,r2,0x4000
@@ -1528,7 +1536,7 @@ _GLOBAL(__start_initialization_multiplatform)
li r24,0
/* Switch off MMU if not already */
- LOADADDR(r4, .__after_prom_start - KERNELBASE)
+ LOAD_REG_IMMEDIATE(r4, .__after_prom_start - KERNELBASE)
add r4,r4,r30
bl .__mmu_off
b .__after_prom_start
@@ -1548,7 +1556,7 @@ _STATIC(__boot_from_prom)
/* put a relocation offset into r3 */
bl .reloc_offset
- LOADADDR(r2,__toc_start)
+ LOAD_REG_IMMEDIATE(r2,__toc_start)
addi r2,r2,0x4000
addi r2,r2,0x4000
@@ -1588,9 +1596,9 @@ _STATIC(__after_prom_start)
*/
bl .reloc_offset
mr r26,r3
- SET_REG_TO_CONST(r27,KERNELBASE)
+ LOAD_REG_IMMEDIATE(r27, KERNELBASE)
- LOADADDR(r3, PHYSICAL_START) /* target addr */
+ LOAD_REG_IMMEDIATE(r3, PHYSICAL_START) /* target addr */
// XXX FIXME: Use phys returned by OF (r30)
add r4,r27,r26 /* source addr */
@@ -1598,7 +1606,7 @@ _STATIC(__after_prom_start)
/* i.e. where we are running */
/* the source addr */
- LOADADDR(r5,copy_to_here) /* # bytes of memory to copy */
+ LOAD_REG_IMMEDIATE(r5,copy_to_here) /* # bytes of memory to copy */
sub r5,r5,r27
li r6,0x100 /* Start offset, the first 0x100 */
@@ -1608,11 +1616,11 @@ _STATIC(__after_prom_start)
/* this includes the code being */
/* executed here. */
- LOADADDR(r0, 4f) /* Jump to the copy of this code */
+ LOAD_REG_IMMEDIATE(r0, 4f) /* Jump to the copy of this code */
mtctr r0 /* that we just made/relocated */
bctr
-4: LOADADDR(r5,klimit)
+4: LOAD_REG_IMMEDIATE(r5,klimit)
add r5,r5,r26
ld r5,0(r5) /* get the value of klimit */
sub r5,r5,r27
@@ -1694,7 +1702,7 @@ _GLOBAL(pmac_secondary_start)
mtmsrd r3 /* RI on */
/* Set up a paca value for this processor. */
- LOADADDR(r4, paca) /* Get base vaddr of paca array */
+ LOAD_REG_IMMEDIATE(r4, paca) /* Get base vaddr of paca array */
mulli r13,r24,PACA_SIZE /* Calculate vaddr of right paca */
add r13,r13,r4 /* for this processor. */
mtspr SPRN_SPRG3,r13 /* Save vaddr of paca in SPRG3 */
@@ -1731,7 +1739,7 @@ _GLOBAL(__secondary_start)
bl .early_setup_secondary
/* Initialize the kernel stack. Just a repeat for iSeries. */
- LOADADDR(r3,current_set)
+ LOAD_REG_ADDR(r3, current_set)
sldi r28,r24,3 /* get current_set[cpu#] */
ldx r1,r3,r28
addi r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
@@ -1742,8 +1750,8 @@ _GLOBAL(__secondary_start)
mtlr r7
/* enable MMU and jump to start_secondary */
- LOADADDR(r3,.start_secondary_prolog)
- SET_REG_TO_CONST(r4, MSR_KERNEL)
+ LOAD_REG_ADDR(r3, .start_secondary_prolog)
+ LOAD_REG_IMMEDIATE(r4, MSR_KERNEL)
#ifdef DO_SOFT_DISABLE
ori r4,r4,MSR_EE
#endif
@@ -1792,8 +1800,8 @@ _STATIC(start_here_multiplatform)
* be detached from the kernel completely. Besides, we need
* to clear it now for kexec-style entry.
*/
- LOADADDR(r11,__bss_stop)
- LOADADDR(r8,__bss_start)
+ LOAD_REG_IMMEDIATE(r11,__bss_stop)
+ LOAD_REG_IMMEDIATE(r8,__bss_start)
sub r11,r11,r8 /* bss size */
addi r11,r11,7 /* round up to an even double word */
rldicl. r11,r11,61,3 /* shift right by 3 */
@@ -1831,7 +1839,7 @@ _STATIC(start_here_multiplatform)
/* up the htab. This is done because we have relocated the */
/* kernel but are still running in real mode. */
- LOADADDR(r3,init_thread_union)
+ LOAD_REG_IMMEDIATE(r3,init_thread_union)
add r3,r3,r26
/* set up a stack pointer (physical address) */
@@ -1840,14 +1848,14 @@ _STATIC(start_here_multiplatform)
stdu r0,-STACK_FRAME_OVERHEAD(r1)
/* set up the TOC (physical address) */
- LOADADDR(r2,__toc_start)
+ LOAD_REG_IMMEDIATE(r2,__toc_start)
addi r2,r2,0x4000
addi r2,r2,0x4000
add r2,r2,r26
- LOADADDR(r3,cpu_specs)
+ LOAD_REG_IMMEDIATE(r3, cpu_specs)
add r3,r3,r26
- LOADADDR(r4,cur_cpu_spec)
+ LOAD_REG_IMMEDIATE(r4,cur_cpu_spec)
add r4,r4,r26
mr r5,r26
bl .identify_cpu
@@ -1863,11 +1871,11 @@ _STATIC(start_here_multiplatform)
* nowhere it can be initialized differently before we reach this
* code
*/
- LOADADDR(r27, boot_cpuid)
+ LOAD_REG_IMMEDIATE(r27, boot_cpuid)
add r27,r27,r26
lwz r27,0(r27)
- LOADADDR(r24, paca) /* Get base vaddr of paca array */
+ LOAD_REG_IMMEDIATE(r24, paca) /* Get base vaddr of paca array */
mulli r13,r27,PACA_SIZE /* Calculate vaddr of right paca */
add r13,r13,r24 /* for this processor. */
add r13,r13,r26 /* convert to physical addr */
@@ -1880,8 +1888,8 @@ _STATIC(start_here_multiplatform)
mr r3,r31
bl .early_setup
- LOADADDR(r3,.start_here_common)
- SET_REG_TO_CONST(r4, MSR_KERNEL)
+ LOAD_REG_IMMEDIATE(r3, .start_here_common)
+ LOAD_REG_IMMEDIATE(r4, MSR_KERNEL)
mtspr SPRN_SRR0,r3
mtspr SPRN_SRR1,r4
rfid
@@ -1895,7 +1903,7 @@ _STATIC(start_here_common)
/* The following code sets up the SP and TOC now that we are */
/* running with translation enabled. */
- LOADADDR(r3,init_thread_union)
+ LOAD_REG_IMMEDIATE(r3,init_thread_union)
/* set up the stack */
addi r1,r3,THREAD_SIZE
@@ -1908,16 +1916,16 @@ _STATIC(start_here_common)
li r3,0
bl .do_cpu_ftr_fixups
- LOADADDR(r26, boot_cpuid)
+ LOAD_REG_IMMEDIATE(r26, boot_cpuid)
lwz r26,0(r26)
- LOADADDR(r24, paca) /* Get base vaddr of paca array */
+ LOAD_REG_IMMEDIATE(r24, paca) /* Get base vaddr of paca array */
mulli r13,r26,PACA_SIZE /* Calculate vaddr of right paca */
add r13,r13,r24 /* for this processor. */
mtspr SPRN_SPRG3,r13
/* ptr to current */
- LOADADDR(r4,init_task)
+ LOAD_REG_IMMEDIATE(r4, init_task)
std r4,PACACURRENT(r13)
/* Load the TOC */
@@ -1940,7 +1948,7 @@ _STATIC(start_here_common)
_GLOBAL(hmt_init)
#ifdef CONFIG_HMT
- LOADADDR(r5, hmt_thread_data)
+ LOAD_REG_IMMEDIATE(r5, hmt_thread_data)
mfspr r7,SPRN_PVR
srwi r7,r7,16
cmpwi r7,0x34 /* Pulsar */
@@ -1961,7 +1969,7 @@ _GLOBAL(hmt_init)
b 101f
__hmt_secondary_hold:
- LOADADDR(r5, hmt_thread_data)
+ LOAD_REG_IMMEDIATE(r5, hmt_thread_data)
clrldi r5,r5,4
li r7,0
mfspr r6,SPRN_PIR
@@ -1989,7 +1997,7 @@ __hmt_secondary_hold:
#ifdef CONFIG_HMT
_GLOBAL(hmt_start_secondary)
- LOADADDR(r4,__hmt_secondary_hold)
+ LOAD_REG_IMMEDIATE(r4,__hmt_secondary_hold)
clrldi r4,r4,4
mtspr SPRN_NIADORM, r4
mfspr r4, SPRN_MSRDORM
diff --git a/arch/powerpc/kernel/idle_power4.S b/arch/powerpc/kernel/idle_power4.S
index 1494e2f177f..c16b4afab58 100644
--- a/arch/powerpc/kernel/idle_power4.S
+++ b/arch/powerpc/kernel/idle_power4.S
@@ -38,14 +38,14 @@ END_FTR_SECTION_IFCLR(CPU_FTR_CAN_NAP)
/* We must dynamically check for the NAP feature as it
* can be cleared by CPU init after the fixups are done
*/
- LOADBASE(r3,cur_cpu_spec)
- ld r4,OFF(cur_cpu_spec)(r3)
+ LOAD_REG_ADDRBASE(r3,cur_cpu_spec)
+ ld r4,ADDROFF(cur_cpu_spec)(r3)
ld r4,CPU_SPEC_FEATURES(r4)
andi. r0,r4,CPU_FTR_CAN_NAP
beqlr
/* Now check if user or arch enabled NAP mode */
- LOADBASE(r3,powersave_nap)
- lwz r4,OFF(powersave_nap)(r3)
+ LOAD_REG_ADDRBASE(r3,powersave_nap)
+ lwz r4,ADDROFF(powersave_nap)(r3)
cmpwi 0,r4,0
beqlr
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 5651032d870..d1fffce86df 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -238,14 +238,10 @@ void do_IRQ(struct pt_regs *regs)
irq_exit();
#ifdef CONFIG_PPC_ISERIES
- {
- struct paca_struct *lpaca = get_paca();
-
- if (lpaca->lppaca.int_dword.fields.decr_int) {
- lpaca->lppaca.int_dword.fields.decr_int = 0;
- /* Signal a fake decrementer interrupt */
- timer_interrupt(regs);
- }
+ if (get_lppaca()->int_dword.fields.decr_int) {
+ get_lppaca()->int_dword.fields.decr_int = 0;
+ /* Signal a fake decrementer interrupt */
+ timer_interrupt(regs);
}
#endif
}
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 9dda16ccde7..1ae96a8ed7e 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -55,15 +55,13 @@ static unsigned long get_purr(void)
{
unsigned long sum_purr = 0;
int cpu;
- struct paca_struct *lpaca;
for_each_cpu(cpu) {
- lpaca = paca + cpu;
- sum_purr += lpaca->lppaca.emulated_time_base;
+ sum_purr += lppaca[cpu].emulated_time_base;
#ifdef PURR_DEBUG
printk(KERN_INFO "get_purr for cpu (%d) has value (%ld) \n",
- cpu, lpaca->lppaca.emulated_time_base);
+ cpu, lppaca[cpu].emulated_time_base);
#endif
}
return sum_purr;
@@ -79,12 +77,11 @@ static int lparcfg_data(struct seq_file *m, void *v)
unsigned long pool_id, lp_index;
int shared, entitled_capacity, max_entitled_capacity;
int processors, max_processors;
- struct paca_struct *lpaca = get_paca();
unsigned long purr = get_purr();
seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
- shared = (int)(lpaca->lppaca_ptr->shared_proc);
+ shared = (int)(get_lppaca()->shared_proc);
seq_printf(m, "serial_number=%c%c%c%c%c%c%c\n",
e2a(xItExtVpdPanel.mfgID[2]),
e2a(xItExtVpdPanel.mfgID[3]),
@@ -402,7 +399,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
(h_resource >> 0 * 8) & 0xffff);
/* pool related entries are apropriate for shared configs */
- if (paca[0].lppaca.shared_proc) {
+ if (lppaca[0].shared_proc) {
h_pic(&pool_idle_time, &pool_procs);
@@ -451,7 +448,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
seq_printf(m, "partition_potential_processors=%d\n",
partition_potential_processors);
- seq_printf(m, "shared_processor_mode=%d\n", paca[0].lppaca.shared_proc);
+ seq_printf(m, "shared_processor_mode=%d\n", lppaca[0].shared_proc);
return 0;
}
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 01d0d97a16e..be982023409 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -68,7 +68,7 @@ _GLOBAL(reloc_offset)
mflr r0
bl 1f
1: mflr r3
- LOADADDR(r4,1b)
+ LOAD_REG_IMMEDIATE(r4,1b)
subf r3,r4,r3
mtlr r0
blr
@@ -80,7 +80,7 @@ _GLOBAL(add_reloc_offset)
mflr r0
bl 1f
1: mflr r5
- LOADADDR(r4,1b)
+ LOAD_REG_IMMEDIATE(r4,1b)
subf r5,r4,r5
add r3,r3,r5
mtlr r0
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index ae48a002f81..2778cce058e 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -39,7 +39,7 @@ _GLOBAL(reloc_offset)
mflr r0
bl 1f
1: mflr r3
- LOADADDR(r4,1b)
+ LOAD_REG_IMMEDIATE(r4,1b)
subf r3,r4,r3
mtlr r0
blr
@@ -51,7 +51,7 @@ _GLOBAL(add_reloc_offset)
mflr r0
bl 1f
1: mflr r5
- LOADADDR(r4,1b)
+ LOAD_REG_IMMEDIATE(r4,1b)
subf r5,r4,r5
add r3,r3,r5
mtlr r0
@@ -498,15 +498,15 @@ _GLOBAL(identify_cpu)
*/
_GLOBAL(do_cpu_ftr_fixups)
/* Get CPU 0 features */
- LOADADDR(r6,cur_cpu_spec)
+ LOAD_REG_IMMEDIATE(r6,cur_cpu_spec)
sub r6,r6,r3
ld r4,0(r6)
sub r4,r4,r3
ld r4,CPU_SPEC_FEATURES(r4)
/* Get the fixup table */
- LOADADDR(r6,__start___ftr_fixup)
+ LOAD_REG_IMMEDIATE(r6,__start___ftr_fixup)
sub r6,r6,r3
- LOADADDR(r7,__stop___ftr_fixup)
+ LOAD_REG_IMMEDIATE(r7,__stop___ftr_fixup)
sub r7,r7,r3
/* Do the fixup */
1: cmpld r6,r7
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 999bdd81676..5d1b708086b 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -25,6 +25,28 @@
* field correctly */
extern unsigned long __toc_start;
+/*
+ * iSeries structure which the hypervisor knows about - this structure
+ * should not cross a page boundary. The vpa_init/register_vpa call
+ * is now known to fail if the lppaca structure crosses a page
+ * boundary. The lppaca is also used on POWER5 pSeries boxes. The
+ * lppaca is 640 bytes long, and cannot readily change since the
+ * hypervisor knows its layout, so a 1kB alignment will suffice to
+ * ensure that it doesn't cross a page boundary.
+ */
+struct lppaca lppaca[] = {
+ [0 ... (NR_CPUS-1)] = {
+ .desc = 0xd397d781, /* "LpPa" */
+ .size = sizeof(struct lppaca),
+ .dyn_proc_status = 2,
+ .decr_val = 0x00ff0000,
+ .fpregs_in_use = 1,
+ .end_of_quantum = 0xfffffffffffffffful,
+ .slb_count = 64,
+ .vmxregs_in_use = 0,
+ },
+};
+
/* The Paca is an array with one entry per processor. Each contains an
* lppaca, which contains the information shared between the
* hypervisor and Linux.
@@ -35,27 +57,17 @@ extern unsigned long __toc_start;
* processor (not thread).
*/
#define PACA_INIT_COMMON(number, start, asrr, asrv) \
+ .lppaca_ptr = &lppaca[number], \
.lock_token = 0x8000, \
.paca_index = (number), /* Paca Index */ \
.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL, \
.stab_real = (asrr), /* Real pointer to segment table */ \
.stab_addr = (asrv), /* Virt pointer to segment table */ \
.cpu_start = (start), /* Processor start */ \
- .hw_cpu_id = 0xffff, \
- .lppaca = { \
- .desc = 0xd397d781, /* "LpPa" */ \
- .size = sizeof(struct lppaca), \
- .dyn_proc_status = 2, \
- .decr_val = 0x00ff0000, \
- .fpregs_in_use = 1, \
- .end_of_quantum = 0xfffffffffffffffful, \
- .slb_count = 64, \
- .vmxregs_in_use = 0, \
- }, \
+ .hw_cpu_id = 0xffff,
#ifdef CONFIG_PPC_ISERIES
#define PACA_INIT_ISERIES(number) \
- .lppaca_ptr = &paca[number].lppaca, \
.reg_save_ptr = &iseries_reg_save[number],
#define PACA_INIT(number) \
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 02e2115323e..d50c8df0183 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1627,6 +1627,11 @@ static void of_node_release(struct kref *kref)
kfree(prop->value);
kfree(prop);
prop = next;
+
+ if (!prop) {
+ prop = node->deadprops;
+ node->deadprops = NULL;
+ }
}
kfree(node->intrs);
kfree(node->full_name);
@@ -1774,22 +1779,32 @@ static int __init prom_reconfig_setup(void)
__initcall(prom_reconfig_setup);
#endif
-/*
- * Find a property with a given name for a given node
- * and return the value.
- */
-unsigned char *get_property(struct device_node *np, const char *name,
- int *lenp)
+struct property *of_find_property(struct device_node *np, const char *name,
+ int *lenp)
{
struct property *pp;
+ read_lock(&devtree_lock);
for (pp = np->properties; pp != 0; pp = pp->next)
if (strcmp(pp->name, name) == 0) {
if (lenp != 0)
*lenp = pp->length;
- return pp->value;
+ break;
}
- return NULL;
+ read_unlock(&devtree_lock);
+
+ return pp;
+}
+
+/*
+ * Find a property with a given name for a given node
+ * and return the value.
+ */
+unsigned char *get_property(struct device_node *np, const char *name,
+ int *lenp)
+{
+ struct property *pp = of_find_property(np,name,lenp);
+ return pp ? pp->value : NULL;
}
EXPORT_SYMBOL(get_property);
@@ -1823,4 +1838,82 @@ int prom_add_property(struct device_node* np, struct property* prop)
return 0;
}
+/*
+ * Remove a property from a node. Note that we don't actually
+ * remove it, since we have given out who-knows-how-many pointers
+ * to the data using get-property. Instead we just move the property
+ * to the "dead properties" list, so it won't be found any more.
+ */
+int prom_remove_property(struct device_node *np, struct property *prop)
+{
+ struct property **next;
+ int found = 0;
+ write_lock(&devtree_lock);
+ next = &np->properties;
+ while (*next) {
+ if (*next == prop) {
+ /* found the node */
+ *next = prop->next;
+ prop->next = np->deadprops;
+ np->deadprops = prop;
+ found = 1;
+ break;
+ }
+ next = &(*next)->next;
+ }
+ write_unlock(&devtree_lock);
+
+ if (!found)
+ return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+ /* try to remove the proc node as well */
+ if (np->pde)
+ proc_device_tree_remove_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+ return 0;
+}
+
+/*
+ * Update a property in a node. Note that we don't actually
+ * remove it, since we have given out who-knows-how-many pointers
+ * to the data using get-property. Instead we just move the property
+ * to the "dead properties" list, and add the new property to the
+ * property list
+ */
+int prom_update_property(struct device_node *np,
+ struct property *newprop,
+ struct property *oldprop)
+{
+ struct property **next;
+ int found = 0;
+
+ write_lock(&devtree_lock);
+ next = &np->properties;
+ while (*next) {
+ if (*next == oldprop) {
+ /* found the node */
+ newprop->next = oldprop->next;
+ *next = newprop;
+ oldprop->next = np->deadprops;
+ np->deadprops = oldprop;
+ found = 1;
+ break;
+ }
+ next = &(*next)->next;
+ }
+ write_unlock(&devtree_lock);
+
+ if (!found)
+ return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+ /* try to add to proc as well if it was initialized */
+ if (np->pde)
+ proc_device_tree_update_prop(np->pde, newprop, oldprop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+ return 0;
+}
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 56f50e91bdd..c4a294d657b 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -431,7 +431,7 @@ void timer_interrupt(struct pt_regs * regs)
profile_tick(CPU_PROFILING, regs);
#ifdef CONFIG_PPC_ISERIES
- get_paca()->lppaca.int_dword.fields.decr_int = 0;
+ get_lppaca()->int_dword.fields.decr_int = 0;
#endif
while ((ticks = tb_ticks_since(per_cpu(last_jiffy, cpu)))
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-07 05:30:12 +0000