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-rw-r--r--arch/powerpc/kernel/Makefile9
-rw-r--r--arch/powerpc/kernel/align.c57
-rw-r--r--arch/powerpc/kernel/asm-offsets.c8
-rw-r--r--arch/powerpc/kernel/btext.c1
-rw-r--r--arch/powerpc/kernel/crash.c1
-rw-r--r--arch/powerpc/kernel/crash_dump.c2
-rw-r--r--arch/powerpc/kernel/head_40x.S (renamed from arch/powerpc/kernel/head_4xx.S)3
-rw-r--r--arch/powerpc/kernel/head_64.S585
-rw-r--r--arch/powerpc/kernel/iommu.c1
-rw-r--r--arch/powerpc/kernel/irq.c4
-rw-r--r--arch/powerpc/kernel/lparmap.c32
-rw-r--r--arch/powerpc/kernel/nvram_64.c23
-rw-r--r--arch/powerpc/kernel/pci_32.c4
-rw-r--r--arch/powerpc/kernel/ppc_ksyms.c2
-rw-r--r--arch/powerpc/kernel/prom.c1
-rw-r--r--arch/powerpc/kernel/prom_init.c11
-rw-r--r--arch/powerpc/kernel/rtas_pci.c4
-rw-r--r--arch/powerpc/kernel/setup_32.c2
-rw-r--r--arch/powerpc/kernel/time.c3
19 files changed, 103 insertions, 650 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index b0cb2e662c2..967afc517d8 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -46,7 +46,7 @@ ifeq ($(CONFIG_PPC_MERGE),y)
extra-$(CONFIG_PPC_STD_MMU) := head_32.o
extra-$(CONFIG_PPC64) := head_64.o
-extra-$(CONFIG_40x) := head_4xx.o
+extra-$(CONFIG_40x) := head_40x.o
extra-$(CONFIG_44x) := head_44x.o
extra-$(CONFIG_FSL_BOOKE) := head_fsl_booke.o
extra-$(CONFIG_8xx) := head_8xx.o
@@ -80,13 +80,6 @@ ifneq ($(CONFIG_PPC_INDIRECT_IO),y)
obj-y += iomap.o
endif
-ifeq ($(CONFIG_PPC_ISERIES),y)
-CFLAGS_lparmap.s += -g0
-extra-y += lparmap.s
-$(obj)/head_64.o: $(obj)/lparmap.s
-AFLAGS_head_64.o += -I$(obj)
-endif
-
else
# stuff used from here for ARCH=ppc
smpobj-$(CONFIG_SMP) += smp.o
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 5c9ff7f5c44..4c47f9cc0d9 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -38,7 +38,7 @@ struct aligninfo {
/* Bits in the flags field */
#define LD 0 /* load */
#define ST 1 /* store */
-#define SE 2 /* sign-extend value */
+#define SE 2 /* sign-extend value, or FP ld/st as word */
#define F 4 /* to/from fp regs */
#define U 8 /* update index register */
#define M 0x10 /* multiple load/store */
@@ -87,9 +87,9 @@ static struct aligninfo aligninfo[128] = {
{ 8, LD+F+U }, /* 00 1 1001: lfdu */
{ 4, ST+F+S+U }, /* 00 1 1010: stfsu */
{ 8, ST+F+U }, /* 00 1 1011: stfdu */
- INVALID, /* 00 1 1100 */
+ { 16, LD+F }, /* 00 1 1100: lfdp */
INVALID, /* 00 1 1101 */
- INVALID, /* 00 1 1110 */
+ { 16, ST+F }, /* 00 1 1110: stfdp */
INVALID, /* 00 1 1111 */
{ 8, LD }, /* 01 0 0000: ldx */
INVALID, /* 01 0 0001 */
@@ -167,10 +167,10 @@ static struct aligninfo aligninfo[128] = {
{ 8, LD+F }, /* 11 0 1001: lfdx */
{ 4, ST+F+S }, /* 11 0 1010: stfsx */
{ 8, ST+F }, /* 11 0 1011: stfdx */
- INVALID, /* 11 0 1100 */
- { 8, LD+M }, /* 11 0 1101: lmd */
- INVALID, /* 11 0 1110 */
- { 8, ST+M }, /* 11 0 1111: stmd */
+ { 16, LD+F }, /* 11 0 1100: lfdpx */
+ { 4, LD+F+SE }, /* 11 0 1101: lfiwax */
+ { 16, ST+F }, /* 11 0 1110: stfdpx */
+ { 4, ST+F }, /* 11 0 1111: stfiwx */
{ 4, LD+U }, /* 11 1 0000: lwzux */
INVALID, /* 11 1 0001 */
{ 4, ST+U }, /* 11 1 0010: stwux */
@@ -356,6 +356,42 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
return 1;
}
+/*
+ * Emulate floating-point pair loads and stores.
+ * Only POWER6 has these instructions, and it does true little-endian,
+ * so we don't need the address swizzling.
+ */
+static int emulate_fp_pair(struct pt_regs *regs, unsigned char __user *addr,
+ unsigned int reg, unsigned int flags)
+{
+ char *ptr = (char *) &current->thread.fpr[reg];
+ int i, ret;
+
+ if (!(flags & F))
+ return 0;
+ if (reg & 1)
+ return 0; /* invalid form: FRS/FRT must be even */
+ if (!(flags & SW)) {
+ /* not byte-swapped - easy */
+ if (!(flags & ST))
+ ret = __copy_from_user(ptr, addr, 16);
+ else
+ ret = __copy_to_user(addr, ptr, 16);
+ } else {
+ /* each FPR value is byte-swapped separately */
+ ret = 0;
+ for (i = 0; i < 16; ++i) {
+ if (!(flags & ST))
+ ret |= __get_user(ptr[i^7], addr + i);
+ else
+ ret |= __put_user(ptr[i^7], addr + i);
+ }
+ }
+ if (ret)
+ return -EFAULT;
+ return 1; /* exception handled and fixed up */
+}
+
/*
* Called on alignment exception. Attempts to fixup
@@ -471,6 +507,10 @@ int fix_alignment(struct pt_regs *regs)
flush_fp_to_thread(current);
}
+ /* Special case for 16-byte FP loads and stores */
+ if (nb == 16)
+ return emulate_fp_pair(regs, addr, reg, flags);
+
/* If we are loading, get the data from user space, else
* get it from register values
*/
@@ -531,7 +571,8 @@ int fix_alignment(struct pt_regs *regs)
* or floating point single precision conversion
*/
switch (flags & ~(U|SW)) {
- case LD+SE: /* sign extend */
+ case LD+SE: /* sign extending integer loads */
+ case LD+F+SE: /* sign extend for lfiwax */
if ( nb == 2 )
data.ll = data.x16.low16;
else /* nb must be 4 */
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 2cb1d948779..a40805328f9 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -312,5 +312,13 @@ int main(void)
#ifdef CONFIG_BUG
DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry));
#endif
+
+#ifdef CONFIG_PPC_ISERIES
+ /* the assembler miscalculates the VSID values */
+ DEFINE(PAGE_OFFSET_ESID, GET_ESID(PAGE_OFFSET));
+ DEFINE(PAGE_OFFSET_VSID, KERNEL_VSID(PAGE_OFFSET));
+ DEFINE(VMALLOC_START_ESID, GET_ESID(VMALLOC_START));
+ DEFINE(VMALLOC_START_VSID, KERNEL_VSID(VMALLOC_START));
+#endif
return 0;
}
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index e7b684689e0..3ef51fb6f10 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -11,7 +11,6 @@
#include <asm/sections.h>
#include <asm/prom.h>
#include <asm/btext.h>
-#include <asm/prom.h>
#include <asm/page.h>
#include <asm/mmu.h>
#include <asm/pgtable.h>
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 37658ea417f..77c749a1337 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -24,7 +24,6 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/types.h>
-#include <linux/irq.h>
#include <asm/processor.h>
#include <asm/machdep.h>
diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c
index 2f6f5a7bc69..ffa91d673ec 100644
--- a/arch/powerpc/kernel/crash_dump.c
+++ b/arch/powerpc/kernel/crash_dump.c
@@ -25,7 +25,7 @@
#define DBG(fmt...)
#endif
-void reserve_kdump_trampoline(void)
+void __init reserve_kdump_trampoline(void)
{
lmb_reserve(0, KDUMP_RESERVE_LIMIT);
}
diff --git a/arch/powerpc/kernel/head_4xx.S b/arch/powerpc/kernel/head_40x.S
index adc7f8097cd..a8e045773a9 100644
--- a/arch/powerpc/kernel/head_4xx.S
+++ b/arch/powerpc/kernel/head_40x.S
@@ -35,7 +35,6 @@
#include <asm/page.h>
#include <asm/mmu.h>
#include <asm/pgtable.h>
-#include <asm/ibm4xx.h>
#include <asm/cputable.h>
#include <asm/thread_info.h>
#include <asm/ppc_asm.h>
@@ -772,7 +771,7 @@ finish_tlb_load:
*/
lwz r9, tlb_4xx_index@l(0)
addi r9, r9, 1
- andi. r9, r9, (PPC4XX_TLB_SIZE-1)
+ andi. r9, r9, (PPC40X_TLB_SIZE-1)
stw r9, tlb_4xx_index@l(0)
6:
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 171800002ed..33c4e8cab0b 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -34,6 +34,8 @@
#include <asm/iseries/lpar_map.h>
#include <asm/thread_info.h>
#include <asm/firmware.h>
+#include <asm/page_64.h>
+#include <asm/exception.h>
#define DO_SOFT_DISABLE
@@ -144,344 +146,9 @@ exception_marker:
.text
/*
- * The following macros define the code that appears as
- * the prologue to each of the exception handlers. They
- * are split into two parts to allow a single kernel binary
- * to be used for pSeries and iSeries.
- * LOL. One day... - paulus
- */
-
-/*
- * We make as much of the exception code common between native
- * exception handlers (including pSeries LPAR) and iSeries LPAR
- * implementations as possible.
- */
-
-/*
* This is the start of the interrupt handlers for pSeries
* This code runs with relocation off.
*/
-#define EX_R9 0
-#define EX_R10 8
-#define EX_R11 16
-#define EX_R12 24
-#define EX_R13 32
-#define EX_SRR0 40
-#define EX_DAR 48
-#define EX_DSISR 56
-#define EX_CCR 60
-#define EX_R3 64
-#define EX_LR 72
-
-/*
- * 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) \
- oris reg,reg,(label)@h; /* virt addr of handler ... */ \
- ori reg,reg,(label)@l; /* .. and the rest */
-#else
-#define LOAD_HANDLER(reg, label) \
- ori reg,reg,(label)@l; /* virt addr of handler ... */
-#endif
-
-/*
- * Equal to EXCEPTION_PROLOG_PSERIES, except that it forces 64bit mode.
- * The firmware calls the registered system_reset_fwnmi and
- * machine_check_fwnmi handlers in 32bit mode if the cpu happens to run
- * a 32bit application at the time of the event.
- * This firmware bug is present on POWER4 and JS20.
- */
-#define EXCEPTION_PROLOG_PSERIES_FORCE_64BIT(area, label) \
- mfspr r13,SPRN_SPRG3; /* get paca address into r13 */ \
- std r9,area+EX_R9(r13); /* save r9 - r12 */ \
- std r10,area+EX_R10(r13); \
- std r11,area+EX_R11(r13); \
- std r12,area+EX_R12(r13); \
- mfspr r9,SPRN_SPRG1; \
- std r9,area+EX_R13(r13); \
- mfcr r9; \
- clrrdi r12,r13,32; /* get high part of &label */ \
- mfmsr r10; \
- /* force 64bit mode */ \
- li r11,5; /* MSR_SF_LG|MSR_ISF_LG */ \
- rldimi r10,r11,61,0; /* insert into top 3 bits */ \
- /* done 64bit mode */ \
- mfspr r11,SPRN_SRR0; /* save SRR0 */ \
- LOAD_HANDLER(r12,label) \
- ori r10,r10,MSR_IR|MSR_DR|MSR_RI; \
- mtspr SPRN_SRR0,r12; \
- mfspr r12,SPRN_SRR1; /* and SRR1 */ \
- mtspr SPRN_SRR1,r10; \
- rfid; \
- b . /* prevent speculative execution */
-
-#define EXCEPTION_PROLOG_PSERIES(area, label) \
- mfspr r13,SPRN_SPRG3; /* get paca address into r13 */ \
- std r9,area+EX_R9(r13); /* save r9 - r12 */ \
- std r10,area+EX_R10(r13); \
- std r11,area+EX_R11(r13); \
- std r12,area+EX_R12(r13); \
- mfspr r9,SPRN_SPRG1; \
- std r9,area+EX_R13(r13); \
- mfcr r9; \
- clrrdi r12,r13,32; /* get high part of &label */ \
- mfmsr r10; \
- mfspr r11,SPRN_SRR0; /* save SRR0 */ \
- LOAD_HANDLER(r12,label) \
- ori r10,r10,MSR_IR|MSR_DR|MSR_RI; \
- mtspr SPRN_SRR0,r12; \
- mfspr r12,SPRN_SRR1; /* and SRR1 */ \
- mtspr SPRN_SRR1,r10; \
- rfid; \
- b . /* prevent speculative execution */
-
-/*
- * This is the start of the interrupt handlers for iSeries
- * This code runs with relocation on.
- */
-#define EXCEPTION_PROLOG_ISERIES_1(area) \
- mfspr r13,SPRN_SPRG3; /* get paca address into r13 */ \
- std r9,area+EX_R9(r13); /* save r9 - r12 */ \
- std r10,area+EX_R10(r13); \
- std r11,area+EX_R11(r13); \
- std r12,area+EX_R12(r13); \
- mfspr r9,SPRN_SPRG1; \
- std r9,area+EX_R13(r13); \
- mfcr r9
-
-#define EXCEPTION_PROLOG_ISERIES_2 \
- mfmsr r10; \
- ld r12,PACALPPACAPTR(r13); \
- ld r11,LPPACASRR0(r12); \
- ld r12,LPPACASRR1(r12); \
- ori r10,r10,MSR_RI; \
- mtmsrd r10,1
-
-/*
- * The common exception prolog is used for all except a few exceptions
- * such as a segment miss on a kernel address. We have to be prepared
- * to take another exception from the point where we first touch the
- * kernel stack onwards.
- *
- * On entry r13 points to the paca, r9-r13 are saved in the paca,
- * r9 contains the saved CR, r11 and r12 contain the saved SRR0 and
- * SRR1, and relocation is on.
- */
-#define EXCEPTION_PROLOG_COMMON(n, area) \
- andi. r10,r12,MSR_PR; /* See if coming from user */ \
- mr r10,r1; /* Save r1 */ \
- subi r1,r1,INT_FRAME_SIZE; /* alloc frame on kernel stack */ \
- beq- 1f; \
- ld r1,PACAKSAVE(r13); /* kernel stack to use */ \
-1: cmpdi cr1,r1,0; /* check if r1 is in userspace */ \
- bge- cr1,2f; /* abort if it is */ \
- b 3f; \
-2: li r1,(n); /* will be reloaded later */ \
- sth r1,PACA_TRAP_SAVE(r13); \
- b bad_stack; \
-3: std r9,_CCR(r1); /* save CR in stackframe */ \
- std r11,_NIP(r1); /* save SRR0 in stackframe */ \
- std r12,_MSR(r1); /* save SRR1 in stackframe */ \
- std r10,0(r1); /* make stack chain pointer */ \
- std r0,GPR0(r1); /* save r0 in stackframe */ \
- std r10,GPR1(r1); /* save r1 in stackframe */ \
- ACCOUNT_CPU_USER_ENTRY(r9, r10); \
- std r2,GPR2(r1); /* save r2 in stackframe */ \
- SAVE_4GPRS(3, r1); /* save r3 - r6 in stackframe */ \
- SAVE_2GPRS(7, r1); /* save r7, r8 in stackframe */ \
- ld r9,area+EX_R9(r13); /* move r9, r10 to stackframe */ \
- ld r10,area+EX_R10(r13); \
- std r9,GPR9(r1); \
- std r10,GPR10(r1); \
- ld r9,area+EX_R11(r13); /* move r11 - r13 to stackframe */ \
- ld r10,area+EX_R12(r13); \
- ld r11,area+EX_R13(r13); \
- std r9,GPR11(r1); \
- std r10,GPR12(r1); \
- std r11,GPR13(r1); \
- ld r2,PACATOC(r13); /* get kernel TOC into r2 */ \
- mflr r9; /* save LR in stackframe */ \
- std r9,_LINK(r1); \
- mfctr r10; /* save CTR in stackframe */ \
- std r10,_CTR(r1); \
- lbz r10,PACASOFTIRQEN(r13); \
- mfspr r11,SPRN_XER; /* save XER in stackframe */ \
- std r10,SOFTE(r1); \
- std r11,_XER(r1); \
- li r9,(n)+1; \
- std r9,_TRAP(r1); /* set trap number */ \
- li r10,0; \
- ld r11,exception_marker@toc(r2); \
- std r10,RESULT(r1); /* clear regs->result */ \
- std r11,STACK_FRAME_OVERHEAD-16(r1); /* mark the frame */
-
-/*
- * Exception vectors.
- */
-#define STD_EXCEPTION_PSERIES(n, label) \
- . = n; \
- .globl label##_pSeries; \
-label##_pSeries: \
- HMT_MEDIUM; \
- mtspr SPRN_SPRG1,r13; /* save r13 */ \
- EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common)
-
-#define HSTD_EXCEPTION_PSERIES(n, label) \
- . = n; \
- .globl label##_pSeries; \
-label##_pSeries: \
- HMT_MEDIUM; \
- mtspr SPRN_SPRG1,r20; /* save r20 */ \
- mfspr r20,SPRN_HSRR0; /* copy HSRR0 to SRR0 */ \
- mtspr SPRN_SRR0,r20; \
- mfspr r20,SPRN_HSRR1; /* copy HSRR0 to SRR0 */ \
- mtspr SPRN_SRR1,r20; \
- mfspr r20,SPRN_SPRG1; /* restore r20 */ \
- mtspr SPRN_SPRG1,r13; /* save r13 */ \
- EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common)
-
-
-#define MASKABLE_EXCEPTION_PSERIES(n, label) \
- . = n; \
- .globl label##_pSeries; \
-label##_pSeries: \
- HMT_MEDIUM; \
- mtspr SPRN_SPRG1,r13; /* save r13 */ \
- mfspr r13,SPRN_SPRG3; /* get paca address into r13 */ \
- std r9,PACA_EXGEN+EX_R9(r13); /* save r9, r10 */ \
- std r10,PACA_EXGEN+EX_R10(r13); \
- lbz r10,PACASOFTIRQEN(r13); \
- mfcr r9; \
- cmpwi r10,0; \
- beq masked_interrupt; \
- mfspr r10,SPRN_SPRG1; \
- std r10,PACA_EXGEN+EX_R13(r13); \
- std r11,PACA_EXGEN+EX_R11(r13); \
- std r12,PACA_EXGEN+EX_R12(r13); \
- clrrdi r12,r13,32; /* get high part of &label */ \
- mfmsr r10; \
- mfspr r11,SPRN_SRR0; /* save SRR0 */ \
- LOAD_HANDLER(r12,label##_common) \
- ori r10,r10,MSR_IR|MSR_DR|MSR_RI; \
- mtspr SPRN_SRR0,r12; \
- mfspr r12,SPRN_SRR1; /* and SRR1 */ \
- mtspr SPRN_SRR1,r10; \
- rfid; \
- b . /* prevent speculative execution */
-
-#define STD_EXCEPTION_ISERIES(n, label, area) \
- .globl label##_iSeries; \
-label##_iSeries: \
- HMT_MEDIUM; \
- mtspr SPRN_SPRG1,r13; /* save r13 */ \
- EXCEPTION_PROLOG_ISERIES_1(area); \
- EXCEPTION_PROLOG_ISERIES_2; \
- b label##_common
-
-#define MASKABLE_EXCEPTION_ISERIES(n, label) \
- .globl label##_iSeries; \
-label##_iSeries: \
- HMT_MEDIUM; \
- mtspr SPRN_SPRG1,r13; /* save r13 */ \
- EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN); \
- lbz r10,PACASOFTIRQEN(r13); \
- cmpwi 0,r10,0; \
- beq- label##_iSeries_masked; \
- EXCEPTION_PROLOG_ISERIES_2; \
- b label##_common; \
-
-#ifdef CONFIG_PPC_ISERIES
-#define DISABLE_INTS \
- li r11,0; \
- stb r11,PACASOFTIRQEN(r13); \
-BEGIN_FW_FTR_SECTION; \
- stb r11,PACAHARDIRQEN(r13); \
-END_FW_FTR_SECTION_IFCLR(FW_FEATURE_ISERIES); \
-BEGIN_FW_FTR_SECTION; \
- mfmsr r10; \
- ori r10,r10,MSR_EE; \
- mtmsrd r10,1; \
-END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
-
-#else
-#define DISABLE_INTS \
- li r11,0; \
- stb r11,PACASOFTIRQEN(r13); \
- stb r11,PACAHARDIRQEN(r13)
-
-#endif /* CONFIG_PPC_ISERIES */
-
-#define ENABLE_INTS \
- ld r12,_MSR(r1); \
- mfmsr r11; \
- rlwimi r11,r12,0,MSR_EE; \
- mtmsrd r11,1
-
-#define STD_EXCEPTION_COMMON(trap, label, hdlr) \
- .align 7; \
- .globl label##_common; \
-label##_common: \
- EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN); \
- DISABLE_INTS; \
- bl .save_nvgprs; \
- addi r3,r1,STACK_FRAME_OVERHEAD; \
- bl hdlr; \
- b .ret_from_except
-
-/*
- * Like STD_EXCEPTION_COMMON, but for exceptions that can occur
- * in the idle task and therefore need the special idle handling.
- */
-#define STD_EXCEPTION_COMMON_IDLE(trap, label, hdlr) \
- .align 7; \
- .globl label##_common; \
-label##_common: \
- EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN); \
- FINISH_NAP; \
- DISABLE_INTS; \
- bl .save_nvgprs; \
- addi r3,r1,STACK_FRAME_OVERHEAD; \
- bl hdlr; \
- b .ret_from_except
-
-#define STD_EXCEPTION_COMMON_LITE(trap, label, hdlr) \
- .align 7; \
- .globl label##_common; \
-label##_common: \
- EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN); \
- FINISH_NAP; \
- DISABLE_INTS; \
- bl .ppc64_runlatch_on; \
- addi r3,r1,STACK_FRAME_OVERHEAD; \
- bl hdlr; \
- b .ret_from_except_lite
-
-/*
- * When the idle code in power4_idle puts the CPU into NAP mode,
- * it has to do so in a loop, and relies on the external interrupt
- * and decrementer interrupt entry code to get it out of the loop.
- * It sets the _TLF_NAPPING bit in current_thread_info()->local_flags
- * to signal that it is in the loop and needs help to get out.
- */
-#ifdef CONFIG_PPC_970_NAP
-#define FINISH_NAP \
-BEGIN_FTR_SECTION \
- clrrdi r11,r1,THREAD_SHIFT; \
- ld r9,TI_LOCAL_FLAGS(r11); \
- andi. r10,r9,_TLF_NAPPING; \
- bnel power4_fixup_nap; \
-END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP)
-#else
-#define FINISH_NAP
-#endif
-
-/*
- * Start of pSeries system interrupt routines
- */
. = 0x100
.globl __start_interrupts
__start_interrupts:
@@ -691,192 +358,6 @@ machine_check_fwnmi:
mtspr SPRN_SPRG1,r13 /* save r13 */
EXCEPTION_PROLOG_PSERIES_FORCE_64BIT(PACA_EXMC, machine_check_common)
-#ifdef CONFIG_PPC_ISERIES
-/*** ISeries-LPAR interrupt handlers ***/
-
- STD_EXCEPTION_ISERIES(0x200, machine_check, PACA_EXMC)
-
- .globl data_access_iSeries
-data_access_iSeries:
- mtspr SPRN_SPRG1,r13
-BEGIN_FTR_SECTION
- mtspr SPRN_SPRG2,r12
- mfspr r13,SPRN_DAR
- mfspr r12,SPRN_DSISR
- srdi r13,r13,60
- rlwimi r13,r12,16,0x20
- mfcr r12
- cmpwi r13,0x2c
- beq .do_stab_bolted_iSeries
- mtcrf 0x80,r12
- mfspr r12,SPRN_SPRG2
-END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
- EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN)
- EXCEPTION_PROLOG_ISERIES_2
- b data_access_common
-
-.do_stab_bolted_iSeries:
- mtcrf 0x80,r12
- mfspr r12,SPRN_SPRG2
- EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
- EXCEPTION_PROLOG_ISERIES_2
- b .do_stab_bolted
-
- .globl data_access_slb_iSeries
-data_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)
- mfspr r3,SPRN_DAR
- std r9,PACA_EXSLB+EX_R9(r13)
- mfcr r9
-#ifdef __DISABLED__
- cmpdi r3,0
- bge slb_miss_user_iseries
-#endif
- std r10,PACA_EXSLB+EX_R10(r13)
- std r11,PACA_EXSLB+EX_R11(r13)
- std r12,PACA_EXSLB+EX_R12(r13)
- mfspr r10,SPRN_SPRG1
- std r10,PACA_EXSLB+EX_R13(r13)
- ld r12,PACALPPACAPTR(r13)
- ld r12,LPPACASRR1(r12)
- b .slb_miss_realmode
-
- STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
-
- .globl instruction_access_slb_iSeries
-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,PACALPPACAPTR(r13)
- ld r3,LPPACASRR0(r3) /* get SRR0 value */
- std r9,PACA_EXSLB+EX_R9(r13)
- mfcr r9
-#ifdef __DISABLED__
- cmpdi r3,0
- bge .slb_miss_user_iseries
-#endif
- std r10,PACA_EXSLB+EX_R10(r13)
- std r11,PACA_EXSLB+EX_R11(r13)
- std r12,PACA_EXSLB+EX_R12(r13)
- mfspr r10,SPRN_SPRG1
- std r10,PACA_EXSLB+EX_R13(r13)
- ld r12,PACALPPACAPTR(r13)
- ld r12,LPPACASRR1(r12)
- b .slb_miss_realmode
-
-#ifdef __DISABLED__
-slb_miss_user_iseries:
- std r10,PACA_EXGEN+EX_R10(r13)
- std r11,PACA_EXGEN+EX_R11(r13)
- std r12,PACA_EXGEN+EX_R12(r13)
- mfspr r10,SPRG1
- ld r11,PACA_EXSLB+EX_R9(r13)
- ld r12,PACA_EXSLB+EX_R3(r13)
- std r10,PACA_EXGEN+EX_R13(r13)
- std r11,PACA_EXGEN+EX_R9(r13)
- std r12,PACA_EXGEN+EX_R3(r13)
- EXCEPTION_PROLOG_ISERIES_2
- b slb_miss_user_common
-#endif
-
- MASKABLE_EXCEPTION_ISERIES(0x500, hardware_interrupt)
- STD_EXCEPTION_ISERIES(0x600, alignment, PACA_EXGEN)
- STD_EXCEPTION_ISERIES(0x700, program_check, PACA_EXGEN)
- STD_EXCEPTION_ISERIES(0x800, fp_unavailable, PACA_EXGEN)
- MASKABLE_EXCEPTION_ISERIES(0x900, decrementer)
- STD_EXCEPTION_ISERIES(0xa00, trap_0a, PACA_EXGEN)
- STD_EXCEPTION_ISERIES(0xb00, trap_0b, PACA_EXGEN)
-
- .globl system_call_iSeries
-system_call_iSeries:
- mr r9,r13
- mfspr r13,SPRN_SPRG3
- EXCEPTION_PROLOG_ISERIES_2
- b system_call_common
-
- STD_EXCEPTION_ISERIES( 0xd00, single_step, PACA_EXGEN)
- STD_EXCEPTION_ISERIES( 0xe00, trap_0e, PACA_EXGEN)
- STD_EXCEPTION_ISERIES( 0xf00, performance_monitor, PACA_EXGEN)
-
- .globl system_reset_iSeries
-system_reset_iSeries:
- mfspr r13,SPRN_SPRG3 /* Get paca address */
- mfmsr r24
- ori r24,r24,MSR_RI
- mtmsrd r24 /* RI on */
- lhz r24,PACAPACAINDEX(r13) /* Get processor # */
- cmpwi 0,r24,0 /* Are we processor 0? */
- bne 1f
- b .__start_initialization_iSeries /* Start up the first processor */
-1: mfspr r4,SPRN_CTRLF
- li r5,CTRL_RUNLATCH /* Turn off the run light */
- andc r4,r4,r5
- mtspr SPRN_CTRLT,r4
-
-1:
- HMT_LOW
-#ifdef CONFIG_SMP
- lbz r23,PACAPROCSTART(r13) /* Test if this processor
- * should start */
- sync
- LOAD_REG_IMMEDIATE(r3,current_set)
- sldi r28,r24,3 /* get current_set[cpu#] */
- ldx r3,r3,r28
- addi r1,r3,THREAD_SIZE
- subi r1,r1,STACK_FRAME_OVERHEAD
-
- cmpwi 0,r23,0
- beq iSeries_secondary_smp_loop /* Loop until told to go */
- bne __secondary_start /* Loop until told to go */
-iSeries_secondary_smp_loop:
- /* Let the Hypervisor know we are alive */
- /* 8002 is a call to HvCallCfg::getLps, a harmless Hypervisor function */
- lis r3,0x8002
- rldicr r3,r3,32,15 /* r0 = (r3 << 32) & 0xffff000000000000 */
-#else /* CONFIG_SMP */
- /* Yield the processor. This is required for non-SMP kernels
- which are running on multi-threaded machines. */
- lis r3,0x8000
- rldicr r3,r3,32,15 /* r3 = (r3 << 32) & 0xffff000000000000 */
- addi r3,r3,18 /* r3 = 0x8000000000000012 which is "yield" */
- li r4,0 /* "yield timed" */
- li r5,-1 /* "yield forever" */
-#endif /* CONFIG_SMP */
- li r0,-1 /* r0=-1 indicates a Hypervisor call */
- sc /* Invoke the hypervisor via a system call */
- mfspr r13,SPRN_SPRG3 /* Put r13 back ???? */
- b 1b /* If SMP not configured, secondaries
- * loop forever */
-
-decrementer_iSeries_masked:
- /* We may not have a valid TOC pointer in here. */
- li r11,1
- ld r12,PACALPPACAPTR(r13)
- stb r11,LPPACADECRINT(r12)
- LOAD_REG_IMMEDIATE(r12, tb_ticks_per_jiffy)
- lwz r12,0(r12)
- mtspr SPRN_DEC,r12
- /* fall through */
-
-hardware_interrupt_iSeries_masked:
- mtcrf 0x80,r9 /* Restore regs */
- 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)
- ld r10,PACA_EXGEN+EX_R10(r13)
- ld r11,PACA_EXGEN+EX_R11(r13)
- ld r12,PACA_EXGEN+EX_R12(r13)
- ld r13,PACA_EXGEN+EX_R13(r13)
- rfid
- b . /* prevent speculative execution */
-#endif /* CONFIG_PPC_ISERIES */
-
/*** Common interrupt handlers ***/
STD_EXCEPTION_COMMON(0x100, system_reset, .system_reset_exception)
@@ -1519,8 +1000,8 @@ _GLOBAL(do_stab_bolted)
* Space for CPU0's segment table.
*
* On iSeries, the hypervisor must fill in at least one entry before
- * we get control (with relocate on). The address is give to the hv
- * as a page number (see xLparMap in lpardata.c), so this must be at a
+ * we get control (with relocate on). The address is given to the hv
+ * as a page number (see xLparMap below), so this must be at a
* fixed address (the linker can't compute (u64)&initial_stab >>
* PAGE_SHIFT).
*/
@@ -1542,12 +1023,22 @@ fwnmi_data_area:
* both pSeries and iSeries */
#ifdef CONFIG_PPC_ISERIES
. = LPARMAP_PHYS
-#include "lparmap.s"
-/*
- * This ".text" is here for old compilers that generate a trailing
- * .note section when compiling .c files to .s
- */
- .text
+ .globl xLparMap
+xLparMap:
+ .quad HvEsidsToMap /* xNumberEsids */
+ .quad HvRangesToMap /* xNumberRanges */
+ .quad STAB0_PAGE /* xSegmentTableOffs */
+ .zero 40 /* xRsvd */
+ /* xEsids (HvEsidsToMap entries of 2 quads) */
+ .quad PAGE_OFFSET_ESID /* xKernelEsid */
+ .quad PAGE_OFFSET_VSID /* xKernelVsid */
+ .quad VMALLOC_START_ESID /* xKernelEsid */
+ .quad VMALLOC_START_VSID /* xKernelVsid */
+ /* xRanges (HvRangesToMap entries of 3 quads) */
+ .quad HvPagesToMap /* xPages */
+ .quad 0 /* xOffset */
+ .quad PAGE_OFFSET_VSID << (SID_SHIFT - HW_PAGE_SHIFT) /* xVPN */
+
#endif /* CONFIG_PPC_ISERIES */
. = 0x8000
@@ -1611,39 +1102,6 @@ _GLOBAL(generic_secondary_smp_init)
b __secondary_start
#endif
-#ifdef CONFIG_PPC_ISERIES
-_INIT_STATIC(__start_initialization_iSeries)
- /* Clear out the BSS */
- 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 */
- beq 4f
- addi r8,r8,-8
- li r0,0
- mtctr r11 /* zero this many doublewords */
-3: stdu r0,8(r8)
- bdnz 3b
-4:
- LOAD_REG_IMMEDIATE(r1,init_thread_union)
- addi r1,r1,THREAD_SIZE
- li r0,0
- stdu r0,-STACK_FRAME_OVERHEAD(r1)
-
- LOAD_REG_IMMEDIATE(r2,__toc_start)
- addi r2,r2,0x4000
- addi r2,r2,0x4000
-
- bl .iSeries_early_setup
- bl .early_setup
-
- /* relocation is on at this point */
-
- b .start_here_common
-#endif /* CONFIG_PPC_ISERIES */
-
-
_STATIC(__mmu_off)
mfmsr r3
andi. r0,r3,MSR_IR|MSR_DR
@@ -1891,6 +1349,7 @@ _GLOBAL(pmac_secondary_start)
* r13 = paca virtual address
* SPRG3 = paca virtual address
*/
+ .globl __secondary_start
__secondary_start:
/* Set thread priority to MEDIUM */
HMT_MEDIUM
@@ -2021,7 +1480,7 @@ _INIT_STATIC(start_here_multiplatform)
b . /* prevent speculative execution */
/* This is where all platforms converge execution */
-_INIT_STATIC(start_here_common)
+_INIT_GLOBAL(start_here_common)
/* relocation is on at this point */
/* The following code sets up the SP and TOC now that we are */
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index c08ceca6277..e4ec6eee81a 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -30,7 +30,6 @@
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/dma-mapping.h>
-#include <linux/init.h>
#include <linux/bitops.h>
#include <asm/io.h>
#include <asm/prom.h>
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 24bea97c736..dfad0e469ee 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -272,7 +272,7 @@ void do_IRQ(struct pt_regs *regs)
struct thread_info *curtp, *irqtp;
#endif
- irq_enter();
+ irq_enter();
#ifdef CONFIG_DEBUG_STACKOVERFLOW
/* Debugging check for stack overflow: is there less than 2KB free? */
@@ -321,7 +321,7 @@ void do_IRQ(struct pt_regs *regs)
/* That's not SMP safe ... but who cares ? */
ppc_spurious_interrupts++;
- irq_exit();
+ irq_exit();
set_irq_regs(old_regs);
#ifdef CONFIG_PPC_ISERIES
diff --git a/arch/powerpc/kernel/lparmap.c b/arch/powerpc/kernel/lparmap.c
deleted file mode 100644
index af11285ffbd..00000000000
--- a/arch/powerpc/kernel/lparmap.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2005 Stephen Rothwell IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/iseries/lpar_map.h>
-
-/* The # is to stop gcc trying to make .text nonexecutable */
-const struct LparMap __attribute__((__section__(".text #"))) xLparMap = {
- .xNumberEsids = HvEsidsToMap,
- .xNumberRanges = HvRangesToMap,
- .xSegmentTableOffs = STAB0_PAGE,
-
- .xEsids = {
- { .xKernelEsid = GET_ESID(PAGE_OFFSET),
- .xKernelVsid = KERNEL_VSID(PAGE_OFFSET), },
- { .xKernelEsid = GET_ESID(VMALLOC_START),
- .xKernelVsid = KERNEL_VSID(VMALLOC_START), },
- },
-
- .xRanges = {
- { .xPages = HvPagesToMap,
- .xOffset = 0,
- .xVPN = KERNEL_VSID(PAGE_OFFSET) << (SID_SHIFT - HW_PAGE_SHIFT),
- },
- },
-};
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index f9676f52c6d..0ed31f22048 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -34,21 +34,10 @@
#undef DEBUG_NVRAM
-static int nvram_scan_partitions(void);
-static int nvram_setup_partition(void);
-static int nvram_create_os_partition(void);
-static int nvram_remove_os_partition(void);
-
static struct nvram_partition * nvram_part;
static long nvram_error_log_index = -1;
static long nvram_error_log_size = 0;
-int no_logging = 1; /* Until we initialize everything,
- * make sure we don't try logging
- * anything */
-
-extern volatile int error_log_cnt;
-
struct err_log_info {
int error_type;
unsigned int seq_num;
@@ -636,16 +625,13 @@ void __exit nvram_cleanup(void)
* sequence #: The unique sequence # for each event. (until it wraps)
* error log: The error log from event_scan
*/
-int nvram_write_error_log(char * buff, int length, unsigned int err_type)
+int nvram_write_error_log(char * buff, int length,
+ unsigned int err_type, unsigned int error_log_cnt)
{
int rc;
loff_t tmp_index;
struct err_log_info info;
- if (no_logging) {
- return -EPERM;
- }
-
if (nvram_error_log_index == -1) {
return -ESPIPE;
}
@@ -678,7 +664,8 @@ int nvram_write_error_log(char * buff, int length, unsigned int err_type)
*
* Reads nvram for error log for at most 'length'
*/
-int nvram_read_error_log(char * buff, int length, unsigned int * err_type)
+int nvram_read_error_log(char * buff, int length,
+ unsigned int * err_type, unsigned int * error_log_cnt)
{
int rc;
loff_t tmp_index;
@@ -704,7 +691,7 @@ int nvram_read_error_log(char * buff, int length, unsigned int * err_type)
return rc;
}
- error_log_cnt = info.seq_num;
+ *error_log_cnt = info.seq_num;
*err_type = info.error_type;
return 0;
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 04a3109ae3c..0e2bee46304 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -1457,8 +1457,8 @@ null_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
static struct pci_ops null_pci_ops =
{
- null_read_config,
- null_write_config
+ .read = null_read_config,
+ .write = null_write_config,
};
/*
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index a20f1951a5c..430c502179c 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -180,7 +180,7 @@ EXPORT_SYMBOL(cacheable_memcpy);
EXPORT_SYMBOL(cpm_install_handler);
EXPORT_SYMBOL(cpm_free_handler);
#endif /* CONFIG_8xx */
-#if defined(CONFIG_8xx) || defined(CONFIG_40x)
+#if defined(CONFIG_8xx)
EXPORT_SYMBOL(__res);
#endif
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index a38197b12d3..0028fe68e09 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -52,7 +52,6 @@
#include <asm/pSeries_reconfig.h>
#include <asm/pci-bridge.h>
#include <asm/kexec.h>
-#include <asm/system.h>
#ifdef DEBUG
#define DBG(fmt...) printk(KERN_ERR fmt)
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index a1d582e3862..29c2160bcbb 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2046,6 +2046,7 @@ static void __init fixup_device_tree_maple(void)
/*
* Pegasos and BriQ lacks the "ranges" property in the isa node
* Pegasos needs decimal IRQ 14/15, not hexadecimal
+ * Pegasos has the IDE configured in legacy mode, but advertised as native
*/
static void __init fixup_device_tree_chrp(void)
{
@@ -2083,9 +2084,13 @@ static void __init fixup_device_tree_chrp(void)
prom_printf("Fixing up IDE interrupt on Pegasos...\n");
prop[0] = 14;
prop[1] = 0x0;
- prop[2] = 15;
- prop[3] = 0x0;
- prom_setprop(ph, name, "interrupts", prop, 4*sizeof(u32));
+ prom_setprop(ph, name, "interrupts", prop, 2*sizeof(u32));
+ prom_printf("Fixing up IDE class-code on Pegasos...\n");
+ rc = prom_getprop(ph, "class-code", prop, sizeof(u32));
+ if (rc == sizeof(u32)) {
+ prop[0] &= ~0x5;
+ prom_setprop(ph, name, "class-code", prop, sizeof(u32));
+ }
}
}
#else
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index a5de6211b97..21f14e57d1f 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -171,8 +171,8 @@ static int rtas_pci_write_config(struct pci_bus *bus,
}
struct pci_ops rtas_pci_ops = {
- rtas_pci_read_config,
- rtas_pci_write_config
+ .read = rtas_pci_read_config,
+ .write = rtas_pci_write_config,
};
int is_python(struct device_node *dev)
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 7ec6ba56d83..a288a5f2dbc 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -18,13 +18,11 @@
#include <linux/cpu.h>
#include <linux/console.h>
-#include <asm/residual.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/processor.h>
#include <asm/pgtable.h>
#include <asm/setup.h>
-#include <asm/amigappc.h>
#include <asm/smp.h>
#include <asm/elf.h>
#include <asm/cputable.h>
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 727a6699f2f..b5944d8e380 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -72,7 +72,6 @@
#include <asm/iseries/it_lp_queue.h>
#include <asm/iseries/hv_call_xm.h>
#endif
-#include <asm/smp.h>
/* keep track of when we need to update the rtc */
time_t last_rtc_update;
@@ -867,7 +866,7 @@ void __init generic_calibrate_decr(void)
"(not found)\n");
}
-#ifdef CONFIG_BOOKE
+#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
/* Set the time base to zero */
mtspr(SPRN_TBWL, 0);
mtspr(SPRN_TBWU, 0);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-09 08:33:29 +0000