diff options
Diffstat (limited to 'arch/ppc64/kernel/head.S')
| -rw-r--r-- | arch/ppc64/kernel/head.S | 58 |
1 files changed, 17 insertions, 41 deletions
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S index 02c8f4e3e4bc..784f56d4684c 100644 --- a/arch/ppc64/kernel/head.S +++ b/arch/ppc64/kernel/head.S @@ -308,6 +308,7 @@ exception_marker: label##_pSeries: \ HMT_MEDIUM; \ mtspr SPRG1,r13; /* save r13 */ \ + RUNLATCH_ON(r13); \ EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common) #define STD_EXCEPTION_ISERIES(n, label, area) \ @@ -315,6 +316,7 @@ label##_pSeries: \ label##_iSeries: \ HMT_MEDIUM; \ mtspr SPRG1,r13; /* save r13 */ \ + RUNLATCH_ON(r13); \ EXCEPTION_PROLOG_ISERIES_1(area); \ EXCEPTION_PROLOG_ISERIES_2; \ b label##_common @@ -324,6 +326,7 @@ label##_iSeries: \ label##_iSeries: \ HMT_MEDIUM; \ mtspr SPRG1,r13; /* save r13 */ \ + RUNLATCH_ON(r13); \ EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN); \ lbz r10,PACAPROCENABLED(r13); \ cmpwi 0,r10,0; \ @@ -393,6 +396,7 @@ __start_interrupts: _machine_check_pSeries: HMT_MEDIUM mtspr SPRG1,r13 /* save r13 */ + RUNLATCH_ON(r13) EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common) . = 0x300 @@ -419,6 +423,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SLB) data_access_slb_pSeries: HMT_MEDIUM mtspr SPRG1,r13 + RUNLATCH_ON(r13) mfspr r13,SPRG3 /* get paca address into r13 */ std r9,PACA_EXSLB+EX_R9(r13) /* save r9 - r12 */ std r10,PACA_EXSLB+EX_R10(r13) @@ -439,6 +444,7 @@ data_access_slb_pSeries: instruction_access_slb_pSeries: HMT_MEDIUM mtspr SPRG1,r13 + RUNLATCH_ON(r13) mfspr r13,SPRG3 /* get paca address into r13 */ std r9,PACA_EXSLB+EX_R9(r13) /* save r9 - r12 */ std r10,PACA_EXSLB+EX_R10(r13) @@ -464,6 +470,7 @@ instruction_access_slb_pSeries: .globl system_call_pSeries system_call_pSeries: HMT_MEDIUM + RUNLATCH_ON(r9) mr r9,r13 mfmsr r10 mfspr r13,SPRG3 @@ -515,36 +522,9 @@ __end_interrupts: #ifdef CONFIG_PPC_ISERIES .globl naca naca: - .llong itVpdAreas - - /* - * The iSeries LPAR map is at this fixed address - * so that the HvReleaseData structure can address - * it with a 32-bit offset. - * - * The VSID values below are dependent on the - * VSID generation algorithm. See include/asm/mmu_context.h. - */ - - . = 0x4800 - - .llong 2 /* # ESIDs to be mapped by hypervisor */ - .llong 1 /* # memory ranges to be mapped by hypervisor */ - .llong STAB0_PAGE /* Page # of segment table within load area */ - .llong 0 /* Reserved */ - .llong 0 /* Reserved */ - .llong 0 /* Reserved */ - .llong 0 /* Reserved */ - .llong 0 /* Reserved */ - .llong (KERNELBASE>>SID_SHIFT) - .llong 0x408f92c94 /* KERNELBASE VSID */ - /* We have to list the bolted VMALLOC segment here, too, so that it - * will be restored on shared processor switch */ - .llong (VMALLOCBASE>>SID_SHIFT) - .llong 0xf09b89af5 /* VMALLOCBASE VSID */ - .llong 8192 /* # pages to map (32 MB) */ - .llong 0 /* Offset from start of loadarea to start of map */ - .llong 0x408f92c940000 /* VPN of first page to map */ + .llong itVpdAreas + .llong 0 /* xRamDisk */ + .llong 0 /* xRamDiskSize */ . = 0x6100 @@ -707,11 +687,13 @@ fwnmi_data_area: system_reset_fwnmi: HMT_MEDIUM mtspr SPRG1,r13 /* save r13 */ + RUNLATCH_ON(r13) EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common) .globl machine_check_fwnmi machine_check_fwnmi: HMT_MEDIUM mtspr SPRG1,r13 /* save r13 */ + RUNLATCH_ON(r13) EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common) /* @@ -848,6 +830,7 @@ unrecov_fer: .align 7 .globl data_access_common data_access_common: + RUNLATCH_ON(r10) /* It wont fit in the 0x300 handler */ mfspr r10,DAR std r10,PACA_EXGEN+EX_DAR(r13) mfspr r10,DSISR @@ -1194,7 +1177,7 @@ _GLOBAL(pSeries_secondary_smp_init) bl .__restore_cpu_setup /* Set up a paca value for this processor. Since we have the - * physical cpu id in r3, we need to search the pacas to find + * 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 */ @@ -1207,8 +1190,8 @@ _GLOBAL(pSeries_secondary_smp_init) cmpwi r5,NR_CPUS blt 1b -99: HMT_LOW /* Couldn't find our CPU id */ - b 99b + mr r3,r24 /* not found, copy phys to r3 */ + b .kexec_wait /* next kernel might do better */ 2: mtspr SPRG3,r13 /* Save vaddr of paca in SPRG3 */ /* From now on, r24 is expected to be logica cpuid */ @@ -2088,7 +2071,7 @@ _GLOBAL(hmt_start_secondary) blr #endif -#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES) +#if defined(CONFIG_KEXEC) || (defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES)) _GLOBAL(smp_release_cpus) /* All secondary cpus are spinning on a common * spinloop, release them all now so they can start @@ -2121,13 +2104,6 @@ empty_zero_page: swapper_pg_dir: .space 4096 -#ifdef CONFIG_SMP -/* 1 page segment table per cpu (max 48, cpu0 allocated at STAB0_PHYS_ADDR) */ - .globl stab_array -stab_array: - .space 4096 * 48 -#endif - /* * This space gets a copy of optional info passed to us by the bootstrap * Used to pass parameters into the kernel like root=/dev/sda1, etc. |