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authorBenjamin Herrenschmidt2010-05-31 10:01:50 +1000
committerBenjamin Herrenschmidt2010-05-31 10:01:50 +1000
commitecca1a34befbb13fc23d9a2cc0d6b725c7727fb2 (patch)
tree6539480b50258f30af799a6ab38529d7b2d7e538 /arch/powerpc/kernel
parent3d00d4ff11686895925f46265f4a78dc78196c2e (diff)
parent48936a08b85518c22a9467a8eaac35d43af54ab4 (diff)
Merge commit 'kumar/next' into next
Conflicts: arch/powerpc/sysdev/fsl_msi.c
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/Makefile8
-rw-r--r--arch/powerpc/kernel/cputable.c2
-rw-r--r--arch/powerpc/kernel/crash.c4
-rw-r--r--arch/powerpc/kernel/fsl_booke_entry_mapping.S237
-rw-r--r--arch/powerpc/kernel/head_fsl_booke.S200
-rw-r--r--arch/powerpc/kernel/misc_32.S17
-rw-r--r--arch/powerpc/kernel/swsusp_booke.S193
-rw-r--r--arch/powerpc/kernel/traps.c88
8 files changed, 548 insertions, 201 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 877326320e74..58d0572de6f9 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -57,8 +57,12 @@ 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
+obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o
+ifeq ($(CONFIG_FSL_BOOKE),y)
+obj-$(CONFIG_HIBERNATION) += swsusp_booke.o
+else
+obj-$(CONFIG_HIBERNATION) += swsusp_$(CONFIG_WORD_SIZE).o
+endif
obj64-$(CONFIG_HIBERNATION) += swsusp_asm64.o
obj-$(CONFIG_MODULES) += module.o module_$(CONFIG_WORD_SIZE).o
obj-$(CONFIG_44x) += cpu_setup_44x.o
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 9556be903e96..87aa0f3c6047 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1840,7 +1840,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
.oprofile_cpu_type = "ppc/e500mc",
.oprofile_type = PPC_OPROFILE_FSL_EMB,
.cpu_setup = __setup_cpu_e500mc,
- .machine_check = machine_check_e500,
+ .machine_check = machine_check_e500mc,
.platform = "ppce500mc",
},
{ /* default match */
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 8c066d6a8e4b..b46f2e09bd81 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -163,6 +163,7 @@ static void crash_kexec_prepare_cpus(int cpu)
}
/* wait for all the CPUs to hit real mode but timeout if they don't come in */
+#ifdef CONFIG_PPC_STD_MMU_64
static void crash_kexec_wait_realmode(int cpu)
{
unsigned int msecs;
@@ -187,6 +188,7 @@ static void crash_kexec_wait_realmode(int cpu)
}
mb();
}
+#endif
/*
* This function will be called by secondary cpus or by kexec cpu
@@ -445,7 +447,9 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
crash_kexec_prepare_cpus(crashing_cpu);
cpu_set(crashing_cpu, cpus_in_crash);
crash_kexec_stop_spus();
+#ifdef CONFIG_PPC_STD_MMU_64
crash_kexec_wait_realmode(crashing_cpu);
+#endif
if (ppc_md.kexec_cpu_down)
ppc_md.kexec_cpu_down(1, 0);
}
diff --git a/arch/powerpc/kernel/fsl_booke_entry_mapping.S b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
new file mode 100644
index 000000000000..beb4d78a2304
--- /dev/null
+++ b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
@@ -0,0 +1,237 @@
+
+/* 1. Find the index of the entry we're executing in */
+ bl invstr /* Find our address */
+invstr: mflr r6 /* Make it accessible */
+ mfmsr r7
+ rlwinm r4,r7,27,31,31 /* extract MSR[IS] */
+ mfspr r7, SPRN_PID0
+ slwi r7,r7,16
+ or r7,r7,r4
+ mtspr SPRN_MAS6,r7
+ tlbsx 0,r6 /* search MSR[IS], SPID=PID0 */
+ mfspr r7,SPRN_MAS1
+ andis. r7,r7,MAS1_VALID@h
+ bne match_TLB
+
+ mfspr r7,SPRN_MMUCFG
+ rlwinm r7,r7,21,28,31 /* extract MMUCFG[NPIDS] */
+ cmpwi r7,3
+ bne match_TLB /* skip if NPIDS != 3 */
+
+ mfspr r7,SPRN_PID1
+ slwi r7,r7,16
+ or r7,r7,r4
+ mtspr SPRN_MAS6,r7
+ tlbsx 0,r6 /* search MSR[IS], SPID=PID1 */
+ mfspr r7,SPRN_MAS1
+ andis. r7,r7,MAS1_VALID@h
+ bne match_TLB
+ mfspr r7, SPRN_PID2
+ slwi r7,r7,16
+ or r7,r7,r4
+ mtspr SPRN_MAS6,r7
+ tlbsx 0,r6 /* Fall through, we had to match */
+
+match_TLB:
+ mfspr r7,SPRN_MAS0
+ rlwinm r3,r7,16,20,31 /* Extract MAS0(Entry) */
+
+ mfspr r7,SPRN_MAS1 /* Insure IPROT set */
+ oris r7,r7,MAS1_IPROT@h
+ mtspr SPRN_MAS1,r7
+ tlbwe
+
+/* 2. Invalidate all entries except the entry we're executing in */
+ mfspr r9,SPRN_TLB1CFG
+ andi. r9,r9,0xfff
+ li r6,0 /* Set Entry counter to 0 */
+1: lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
+ rlwimi r7,r6,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r6) */
+ mtspr SPRN_MAS0,r7
+ tlbre
+ mfspr r7,SPRN_MAS1
+ rlwinm r7,r7,0,2,31 /* Clear MAS1 Valid and IPROT */
+ cmpw r3,r6
+ beq skpinv /* Dont update the current execution TLB */
+ mtspr SPRN_MAS1,r7
+ tlbwe
+ isync
+skpinv: addi r6,r6,1 /* Increment */
+ cmpw r6,r9 /* Are we done? */
+ bne 1b /* If not, repeat */
+
+ /* Invalidate TLB0 */
+ li r6,0x04
+ tlbivax 0,r6
+ TLBSYNC
+ /* Invalidate TLB1 */
+ li r6,0x0c
+ tlbivax 0,r6
+ TLBSYNC
+
+/* 3. Setup a temp mapping and jump to it */
+ andi. r5, r3, 0x1 /* Find an entry not used and is non-zero */
+ addi r5, r5, 0x1
+ lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
+ rlwimi r7,r3,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r3) */
+ mtspr SPRN_MAS0,r7
+ tlbre
+
+ /* grab and fixup the RPN */
+ mfspr r6,SPRN_MAS1 /* extract MAS1[SIZE] */
+ rlwinm r6,r6,25,27,31
+ li r8,-1
+ addi r6,r6,10
+ slw r6,r8,r6 /* convert to mask */
+
+ bl 1f /* Find our address */
+1: mflr r7
+
+ mfspr r8,SPRN_MAS3
+#ifdef CONFIG_PHYS_64BIT
+ mfspr r23,SPRN_MAS7
+#endif
+ and r8,r6,r8
+ subfic r9,r6,-4096
+ and r9,r9,r7
+
+ or r25,r8,r9
+ ori r8,r25,(MAS3_SX|MAS3_SW|MAS3_SR)
+
+ /* Just modify the entry ID and EPN for the temp mapping */
+ lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
+ rlwimi r7,r5,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r5) */
+ mtspr SPRN_MAS0,r7
+ xori r6,r4,1 /* Setup TMP mapping in the other Address space */
+ slwi r6,r6,12
+ oris r6,r6,(MAS1_VALID|MAS1_IPROT)@h
+ ori r6,r6,(MAS1_TSIZE(BOOK3E_PAGESZ_4K))@l
+ mtspr SPRN_MAS1,r6
+ mfspr r6,SPRN_MAS2
+ li r7,0 /* temp EPN = 0 */
+ rlwimi r7,r6,0,20,31
+ mtspr SPRN_MAS2,r7
+ mtspr SPRN_MAS3,r8
+ tlbwe
+
+ xori r6,r4,1
+ slwi r6,r6,5 /* setup new context with other address space */
+ bl 1f /* Find our address */
+1: mflr r9
+ rlwimi r7,r9,0,20,31
+ addi r7,r7,(2f - 1b)
+ mtspr SPRN_SRR0,r7
+ mtspr SPRN_SRR1,r6
+ rfi
+2:
+/* 4. Clear out PIDs & Search info */
+ li r6,0
+ mtspr SPRN_MAS6,r6
+ mtspr SPRN_PID0,r6
+
+ mfspr r7,SPRN_MMUCFG
+ rlwinm r7,r7,21,28,31 /* extract MMUCFG[NPIDS] */
+ cmpwi r7,3
+ bne 2f /* skip if NPIDS != 3 */
+
+ mtspr SPRN_PID1,r6
+ mtspr SPRN_PID2,r6
+
+/* 5. Invalidate mapping we started in */
+2:
+ lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
+ rlwimi r7,r3,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r3) */
+ mtspr SPRN_MAS0,r7
+ tlbre
+ mfspr r6,SPRN_MAS1
+ rlwinm r6,r6,0,2,0 /* clear IPROT */
+ mtspr SPRN_MAS1,r6
+ tlbwe
+ /* Invalidate TLB1 */
+ li r9,0x0c
+ tlbivax 0,r9
+ TLBSYNC
+
+/* The mapping only needs to be cache-coherent on SMP */
+#ifdef CONFIG_SMP
+#define M_IF_SMP MAS2_M
+#else
+#define M_IF_SMP 0
+#endif
+
+#if defined(ENTRY_MAPPING_BOOT_SETUP)
+
+/* 6. Setup KERNELBASE mapping in TLB1[0] */
+ lis r6,0x1000 /* Set MAS0(TLBSEL) = TLB1(1), ESEL = 0 */
+ mtspr SPRN_MAS0,r6
+ lis r6,(MAS1_VALID|MAS1_IPROT)@h
+ ori r6,r6,(MAS1_TSIZE(BOOK3E_PAGESZ_64M))@l
+ mtspr SPRN_MAS1,r6
+ lis r6,MAS2_VAL(PAGE_OFFSET, BOOK3E_PAGESZ_64M, M_IF_SMP)@h
+ ori r6,r6,MAS2_VAL(PAGE_OFFSET, BOOK3E_PAGESZ_64M, M_IF_SMP)@l
+ mtspr SPRN_MAS2,r6
+ mtspr SPRN_MAS3,r8
+ tlbwe
+
+/* 7. Jump to KERNELBASE mapping */
+ lis r6,(KERNELBASE & ~0xfff)@h
+ ori r6,r6,(KERNELBASE & ~0xfff)@l
+
+#elif defined(ENTRY_MAPPING_KEXEC_SETUP)
+/*
+ * 6. Setup a 1:1 mapping in TLB1. Esel 0 is unsued, 1 or 2 contains the tmp
+ * mapping so we start at 3. We setup 8 mappings, each 256MiB in size. This
+ * will cover the first 2GiB of memory.
+ */
+
+ lis r10, (MAS1_VALID|MAS1_IPROT)@h
+ ori r10,r10, (MAS1_TSIZE(BOOK3E_PAGESZ_256M))@l
+ li r11, 0
+ li r0, 8
+ mtctr r0
+
+next_tlb_setup:
+ addi r0, r11, 3
+ rlwinm r0, r0, 16, 4, 15 // Compute esel
+ rlwinm r9, r11, 28, 0, 3 // Compute [ER]PN
+ oris r0, r0, (MAS0_TLBSEL(1))@h
+ mtspr SPRN_MAS0,r0
+ mtspr SPRN_MAS1,r10
+ mtspr SPRN_MAS2,r9
+ ori r9, r9, (MAS3_SX|MAS3_SW|MAS3_SR)
+ mtspr SPRN_MAS3,r9
+ tlbwe
+ addi r11, r11, 1
+ bdnz+ next_tlb_setup
+
+/* 7. Jump to our 1:1 mapping */
+ li r6, 0
+
+#else
+ #error You need to specify the mapping or not use this at all.
+#endif
+
+ lis r7,MSR_KERNEL@h
+ ori r7,r7,MSR_KERNEL@l
+ bl 1f /* Find our address */
+1: mflr r9
+ rlwimi r6,r9,0,20,31
+ addi r6,r6,(2f - 1b)
+ add r6, r6, r25
+ mtspr SPRN_SRR0,r6
+ mtspr SPRN_SRR1,r7
+ rfi /* start execution out of TLB1[0] entry */
+
+/* 8. Clear out the temp mapping */
+2: lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
+ rlwimi r7,r5,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r5) */
+ mtspr SPRN_MAS0,r7
+ tlbre
+ mfspr r8,SPRN_MAS1
+ rlwinm r8,r8,0,2,0 /* clear IPROT */
+ mtspr SPRN_MAS1,r8
+ tlbwe
+ /* Invalidate TLB1 */
+ li r9,0x0c
+ tlbivax 0,r9
+ TLBSYNC
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index edd4a57fd29e..4faeba247854 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -94,204 +94,10 @@ _ENTRY(_start);
*/
_ENTRY(__early_start)
-/* 1. Find the index of the entry we're executing in */
- bl invstr /* Find our address */
-invstr: mflr r6 /* Make it accessible */
- mfmsr r7
- rlwinm r4,r7,27,31,31 /* extract MSR[IS] */
- mfspr r7, SPRN_PID0
- slwi r7,r7,16
- or r7,r7,r4
- mtspr SPRN_MAS6,r7
- tlbsx 0,r6 /* search MSR[IS], SPID=PID0 */
- mfspr r7,SPRN_MAS1
- andis. r7,r7,MAS1_VALID@h
- bne match_TLB
-
- mfspr r7,SPRN_MMUCFG
- rlwinm r7,r7,21,28,31 /* extract MMUCFG[NPIDS] */
- cmpwi r7,3
- bne match_TLB /* skip if NPIDS != 3 */
-
- mfspr r7,SPRN_PID1
- slwi r7,r7,16
- or r7,r7,r4
- mtspr SPRN_MAS6,r7
- tlbsx 0,r6 /* search MSR[IS], SPID=PID1 */
- mfspr r7,SPRN_MAS1
- andis. r7,r7,MAS1_VALID@h
- bne match_TLB
- mfspr r7, SPRN_PID2
- slwi r7,r7,16
- or r7,r7,r4
- mtspr SPRN_MAS6,r7
- tlbsx 0,r6 /* Fall through, we had to match */
-
-match_TLB:
- mfspr r7,SPRN_MAS0
- rlwinm r3,r7,16,20,31 /* Extract MAS0(Entry) */
-
- mfspr r7,SPRN_MAS1 /* Insure IPROT set */
- oris r7,r7,MAS1_IPROT@h
- mtspr SPRN_MAS1,r7
- tlbwe
-
-/* 2. Invalidate all entries except the entry we're executing in */
- mfspr r9,SPRN_TLB1CFG
- andi. r9,r9,0xfff
- li r6,0 /* Set Entry counter to 0 */
-1: lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r6,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r6) */
- mtspr SPRN_MAS0,r7
- tlbre
- mfspr r7,SPRN_MAS1
- rlwinm r7,r7,0,2,31 /* Clear MAS1 Valid and IPROT */
- cmpw r3,r6
- beq skpinv /* Dont update the current execution TLB */
- mtspr SPRN_MAS1,r7
- tlbwe
- isync
-skpinv: addi r6,r6,1 /* Increment */
- cmpw r6,r9 /* Are we done? */
- bne 1b /* If not, repeat */
-
- /* Invalidate TLB0 */
- li r6,0x04
- tlbivax 0,r6
- TLBSYNC
- /* Invalidate TLB1 */
- li r6,0x0c
- tlbivax 0,r6
- TLBSYNC
-
-/* 3. Setup a temp mapping and jump to it */
- andi. r5, r3, 0x1 /* Find an entry not used and is non-zero */
- addi r5, r5, 0x1
- lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r3,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r3) */
- mtspr SPRN_MAS0,r7
- tlbre
-
- /* grab and fixup the RPN */
- mfspr r6,SPRN_MAS1 /* extract MAS1[SIZE] */
- rlwinm r6,r6,25,27,31
- li r8,-1
- addi r6,r6,10
- slw r6,r8,r6 /* convert to mask */
-
- bl 1f /* Find our address */
-1: mflr r7
-
- mfspr r8,SPRN_MAS3
-#ifdef CONFIG_PHYS_64BIT
- mfspr r23,SPRN_MAS7
-#endif
- and r8,r6,r8
- subfic r9,r6,-4096
- and r9,r9,r7
-
- or r25,r8,r9
- ori r8,r25,(MAS3_SX|MAS3_SW|MAS3_SR)
-
- /* Just modify the entry ID and EPN for the temp mapping */
- lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r5,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r5) */
- mtspr SPRN_MAS0,r7
- xori r6,r4,1 /* Setup TMP mapping in the other Address space */
- slwi r6,r6,12
- oris r6,r6,(MAS1_VALID|MAS1_IPROT)@h
- ori r6,r6,(MAS1_TSIZE(BOOK3E_PAGESZ_4K))@l
- mtspr SPRN_MAS1,r6
- mfspr r6,SPRN_MAS2
- li r7,0 /* temp EPN = 0 */
- rlwimi r7,r6,0,20,31
- mtspr SPRN_MAS2,r7
- mtspr SPRN_MAS3,r8
- tlbwe
-
- xori r6,r4,1
- slwi r6,r6,5 /* setup new context with other address space */
- bl 1f /* Find our address */
-1: mflr r9
- rlwimi r7,r9,0,20,31
- addi r7,r7,(2f - 1b)
- mtspr SPRN_SRR0,r7
- mtspr SPRN_SRR1,r6
- rfi
-2:
-/* 4. Clear out PIDs & Search info */
- li r6,0
- mtspr SPRN_MAS6,r6
- mtspr SPRN_PID0,r6
-
- mfspr r7,SPRN_MMUCFG
- rlwinm r7,r7,21,28,31 /* extract MMUCFG[NPIDS] */
- cmpwi r7,3
- bne 2f /* skip if NPIDS != 3 */
- mtspr SPRN_PID1,r6
- mtspr SPRN_PID2,r6
-
-/* 5. Invalidate mapping we started in */
-2:
- lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r3,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r3) */
- mtspr SPRN_MAS0,r7
- tlbre
- mfspr r6,SPRN_MAS1
- rlwinm r6,r6,0,2,0 /* clear IPROT */
- mtspr SPRN_MAS1,r6
- tlbwe
- /* Invalidate TLB1 */
- li r9,0x0c
- tlbivax 0,r9
- TLBSYNC
-
-/* The mapping only needs to be cache-coherent on SMP */
-#ifdef CONFIG_SMP
-#define M_IF_SMP MAS2_M
-#else
-#define M_IF_SMP 0
-#endif
-
-/* 6. Setup KERNELBASE mapping in TLB1[0] */
- lis r6,0x1000 /* Set MAS0(TLBSEL) = TLB1(1), ESEL = 0 */
- mtspr SPRN_MAS0,r6
- lis r6,(MAS1_VALID|MAS1_IPROT)@h
- ori r6,r6,(MAS1_TSIZE(BOOK3E_PAGESZ_64M))@l
- mtspr SPRN_MAS1,r6
- lis r6,MAS2_VAL(PAGE_OFFSET, BOOK3E_PAGESZ_64M, M_IF_SMP)@h
- ori r6,r6,MAS2_VAL(PAGE_OFFSET, BOOK3E_PAGESZ_64M, M_IF_SMP)@l
- mtspr SPRN_MAS2,r6
- mtspr SPRN_MAS3,r8
- tlbwe
-
-/* 7. Jump to KERNELBASE mapping */
- lis r6,(KERNELBASE & ~0xfff)@h
- ori r6,r6,(KERNELBASE & ~0xfff)@l
- lis r7,MSR_KERNEL@h
- ori r7,r7,MSR_KERNEL@l
- bl 1f /* Find our address */
-1: mflr r9
- rlwimi r6,r9,0,20,31
- addi r6,r6,(2f - 1b)
- mtspr SPRN_SRR0,r6
- mtspr SPRN_SRR1,r7
- rfi /* start execution out of TLB1[0] entry */
-
-/* 8. Clear out the temp mapping */
-2: lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r5,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r5) */
- mtspr SPRN_MAS0,r7
- tlbre
- mfspr r8,SPRN_MAS1
- rlwinm r8,r8,0,2,0 /* clear IPROT */
- mtspr SPRN_MAS1,r8
- tlbwe
- /* Invalidate TLB1 */
- li r9,0x0c
- tlbivax 0,r9
- TLBSYNC
+#define ENTRY_MAPPING_BOOT_SETUP
+#include "fsl_booke_entry_mapping.S"
+#undef ENTRY_MAPPING_BOOT_SETUP
/* Establish the interrupt vector offsets */
SET_IVOR(0, CriticalInput);
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 8043d1b73cf0..dc66d52dcff5 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -711,6 +711,22 @@ relocate_new_kernel:
/* r4 = reboot_code_buffer */
/* r5 = start_address */
+#ifdef CONFIG_FSL_BOOKE
+
+ mr r29, r3
+ mr r30, r4
+ mr r31, r5
+
+#define ENTRY_MAPPING_KEXEC_SETUP
+#include "fsl_booke_entry_mapping.S"
+#undef ENTRY_MAPPING_KEXEC_SETUP
+
+ mr r3, r29
+ mr r4, r30
+ mr r5, r31
+
+ li r0, 0
+#else
li r0, 0
/*
@@ -727,6 +743,7 @@ relocate_new_kernel:
rfi
1:
+#endif
/* from this point address translation is turned off */
/* and interrupts are disabled */
diff --git a/arch/powerpc/kernel/swsusp_booke.S b/arch/powerpc/kernel/swsusp_booke.S
new file mode 100644
index 000000000000..11a39307dd71
--- /dev/null
+++ b/arch/powerpc/kernel/swsusp_booke.S
@@ -0,0 +1,193 @@
+/*
+ * Based on swsusp_32.S, modified for FSL BookE by
+ * Anton Vorontsov <avorontsov@ru.mvista.com>
+ * Copyright (c) 2009-2010 MontaVista Software, LLC.
+ */
+
+#include <linux/threads.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+#include <asm/mmu.h>
+
+/*
+ * Structure for storing CPU registers on the save area.
+ */
+#define SL_SP 0
+#define SL_PC 4
+#define SL_MSR 8
+#define SL_TCR 0xc
+#define SL_SPRG0 0x10
+#define SL_SPRG1 0x14
+#define SL_SPRG2 0x18
+#define SL_SPRG3 0x1c
+#define SL_SPRG4 0x20
+#define SL_SPRG5 0x24
+#define SL_SPRG6 0x28
+#define SL_SPRG7 0x2c
+#define SL_TBU 0x30
+#define SL_TBL 0x34
+#define SL_R2 0x38
+#define SL_CR 0x3c
+#define SL_LR 0x40
+#define SL_R12 0x44 /* r12 to r31 */
+#define SL_SIZE (SL_R12 + 80)
+
+ .section .data
+ .align 5
+
+_GLOBAL(swsusp_save_area)
+ .space SL_SIZE
+
+
+ .section .text
+ .align 5
+
+_GLOBAL(swsusp_arch_suspend)
+ lis r11,swsusp_save_area@h
+ ori r11,r11,swsusp_save_area@l
+
+ mflr r0
+ stw r0,SL_LR(r11)
+ mfcr r0
+ stw r0,SL_CR(r11)
+ stw r1,SL_SP(r11)
+ stw r2,SL_R2(r11)
+ stmw r12,SL_R12(r11)
+
+ /* Save MSR & TCR */
+ mfmsr r4
+ stw r4,SL_MSR(r11)
+ mfspr r4,SPRN_TCR
+ stw r4,SL_TCR(r11)
+
+ /* Get a stable timebase and save it */
+1: mfspr r4,SPRN_TBRU
+ stw r4,SL_TBU(r11)
+ mfspr r5,SPRN_TBRL
+ stw r5,SL_TBL(r11)
+ mfspr r3,SPRN_TBRU
+ cmpw r3,r4
+ bne 1b
+
+ /* Save SPRGs */
+ mfsprg r4,0
+ stw r4,SL_SPRG0(r11)
+ mfsprg r4,1
+ stw r4,SL_SPRG1(r11)
+ mfsprg r4,2
+ stw r4,SL_SPRG2(r11)
+ mfsprg r4,3
+ stw r4,SL_SPRG3(r11)
+ mfsprg r4,4
+ stw r4,SL_SPRG4(r11)
+ mfsprg r4,5
+ stw r4,SL_SPRG5(r11)
+ mfsprg r4,6
+ stw r4,SL_SPRG6(r11)
+ mfsprg r4,7
+ stw r4,SL_SPRG7(r11)
+
+ /* Call the low level suspend stuff (we should probably have made
+ * a stackframe...
+ */
+ bl swsusp_save
+
+ /* Restore LR from the save area */
+ lis r11,swsusp_save_area@h
+ ori r11,r11,swsusp_save_area@l
+ lwz r0,SL_LR(r11)
+ mtlr r0
+
+ blr
+
+_GLOBAL(swsusp_arch_resume)
+ sync
+
+ /* Load ptr the list of pages to copy in r3 */
+ lis r11,(restore_pblist)@h
+ ori r11,r11,restore_pblist@l
+ lwz r3,0(r11)
+
+ /* Copy the pages. This is a very basic implementation, to
+ * be replaced by something more cache efficient */
+1:
+ li r0,256
+ mtctr r0
+ lwz r5,pbe_address(r3) /* source */
+ lwz r6,pbe_orig_address(r3) /* destination */
+2:
+ lwz r8,0(r5)
+ lwz r9,4(r5)
+ lwz r10,8(r5)
+ lwz r11,12(r5)
+ addi r5,r5,16
+ stw r8,0(r6)
+ stw r9,4(r6)
+ stw r10,8(r6)
+ stw r11,12(r6)
+ addi r6,r6,16
+ bdnz 2b
+ lwz r3,pbe_next(r3)
+ cmpwi 0,r3,0
+ bne 1b
+
+ bl flush_dcache_L1
+ bl flush_instruction_cache
+
+ lis r11,swsusp_save_area@h
+ ori r11,r11,swsusp_save_area@l
+
+ lwz r4,SL_SPRG0(r11)
+ mtsprg 0,r4
+ lwz r4,SL_SPRG1(r11)
+ mtsprg 1,r4
+ lwz r4,SL_SPRG2(r11)
+ mtsprg 2,r4
+ lwz r4,SL_SPRG3(r11)
+ mtsprg 3,r4
+ lwz r4,SL_SPRG4(r11)
+ mtsprg 4,r4
+ lwz r4,SL_SPRG5(r11)
+ mtsprg 5,r4
+ lwz r4,SL_SPRG6(r11)
+ mtsprg 6,r4
+ lwz r4,SL_SPRG7(r11)
+ mtsprg 7,r4
+
+ /* restore the MSR */
+ lwz r3,SL_MSR(r11)
+ mtmsr r3
+
+ /* Restore TB */
+ li r3,0
+ mtspr SPRN_TBWL,r3
+ lwz r3,SL_TBU(r11)
+ lwz r4,SL_TBL(r11)
+ mtspr SPRN_TBWU,r3
+ mtspr SPRN_TBWL,r4
+
+ /* Restore TCR and clear any pending bits in TSR. */
+ lwz r4,SL_TCR(r11)
+ mtspr SPRN_TCR,r4
+ lis r4, (TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS)@h
+ mtspr SPRN_TSR,r4
+
+ /* Kick decrementer */
+ li r0,1
+ mtdec r0
+
+ /* Restore the callee-saved registers and return */
+ lwz r0,SL_CR(r11)
+ mtcr r0
+ lwz r2,SL_R2(r11)
+ lmw r12,SL_R12(r11)
+ lwz r1,SL_SP(r11)
+ lwz r0,SL_LR(r11)
+ mtlr r0
+
+ li r3,0
+ blr
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 3031fc712ad0..25fc33984c2b 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1,5 +1,6 @@
/*
* Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ * Copyright 2007-2010 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -305,7 +306,7 @@ static inline int check_io_access(struct pt_regs *regs)
#ifndef CONFIG_FSL_BOOKE
#define get_mc_reason(regs) ((regs)->dsisr)
#else
-#define get_mc_reason(regs) (mfspr(SPRN_MCSR) & MCSR_MASK)
+#define get_mc_reason(regs) (mfspr(SPRN_MCSR))
#endif
#define REASON_FP ESR_FP
#define REASON_ILLEGAL (ESR_PIL | ESR_PUO)
@@ -421,6 +422,91 @@ int machine_check_47x(struct pt_regs *regs)
return 0;
}
#elif defined(CONFIG_E500)
+int machine_check_e500mc(struct pt_regs *regs)
+{
+ unsigned long mcsr = mfspr(SPRN_MCSR);
+ unsigned long reason = mcsr;
+ int recoverable = 1;
+
+ printk("Machine check in kernel mode.\n");
+ printk("Caused by (from MCSR=%lx): ", reason);
+
+ if (reason & MCSR_MCP)
+ printk("Machine Check Signal\n");
+
+ if (reason & MCSR_ICPERR) {
+ printk("Instruction Cache Parity Error\n");
+
+ /*
+ * This is recoverable by invalidating the i-cache.
+ */
+ mtspr(SPRN_L1CSR1, mfspr(SPRN_L1CSR1) | L1CSR1_ICFI);
+ while (mfspr(SPRN_L1CSR1) & L1CSR1_ICFI)
+ ;
+
+ /*
+ * This will generally be accompanied by an instruction
+ * fetch error report -- only treat MCSR_IF as fatal
+ * if it wasn't due to an L1 parity error.
+ */
+ reason &= ~MCSR_IF;
+ }
+
+ if (reason & MCSR_DCPERR_MC) {
+ printk("Data Cache Parity Error\n");
+ recoverable = 0;
+ }
+
+ if (reason & MCSR_L2MMU_MHIT) {
+ printk("Hit on multiple TLB entries\n");
+ recoverable = 0;
+ }
+
+ if (reason & MCSR_NMI)
+ printk("Non-maskable interrupt\n");
+
+ if (reason & MCSR_IF) {
+ printk("Instruction Fetch Error Report\n");
+ recoverable = 0;
+ }
+
+ if (reason & MCSR_LD) {
+ printk("Load Error Report\n");
+ recoverable = 0;
+ }
+
+ if (reason & MCSR_ST) {
+ printk("Store Error Report\n");
+ recoverable = 0;
+ }
+
+ if (reason & MCSR_LDG) {
+ printk("Guarded Load Error Report\n");
+ recoverable = 0;
+ }
+
+ if (reason & MCSR_TLBSYNC)
+ printk("Simultaneous tlbsync operations\n");
+
+ if (reason & MCSR_BSL2_ERR) {
+ printk("Level 2 Cache Error\n");
+ recoverable = 0;
+ }
+
+ if (reason & MCSR_MAV) {
+ u64 addr;
+
+ addr = mfspr(SPRN_MCAR);
+ addr |= (u64)mfspr(SPRN_MCARU) << 32;
+
+ printk("Machine Check %s Address: %#llx\n",
+ reason & MCSR_MEA ? "Effective" : "Physical", addr);
+ }
+
+ mtspr(SPRN_MCSR, mcsr);
+ return mfspr(SPRN_MCSR) == 0 && recoverable;
+}
+
int machine_check_e500(struct pt_regs *regs)
{
unsigned long reason = get_mc_reason(regs);