diff options
author | Michael Ellerman <mpe@ellerman.id.au> | 2017-10-19 15:08:43 +1100 |
---|---|---|
committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-11-06 16:48:14 +1100 |
commit | 4e003747043d57aa75c9762fa148ef38afe68dd8 (patch) | |
tree | a9dc99de8961b4b66ab0ac84d0923dde198ded92 /arch/powerpc/kernel | |
parent | c1807e3f84668c4c1e838386fdc3f6e63df1156c (diff) | |
download | op-kernel-dev-4e003747043d57aa75c9762fa148ef38afe68dd8.zip op-kernel-dev-4e003747043d57aa75c9762fa148ef38afe68dd8.tar.gz |
powerpc/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64
CONFIG_PPC_STD_MMU_64 indicates support for the "standard" powerpc MMU
on 64-bit CPUs. The "standard" MMU refers to the hash page table MMU
found in "server" processors, from IBM mainly.
Currently CONFIG_PPC_STD_MMU_64 is == CONFIG_PPC_BOOK3S_64. While it's
annoying to have two symbols that always have the same value, it's not
quite annoying enough to bother removing one.
However with the arrival of Power9, we now have the situation where
CONFIG_PPC_STD_MMU_64 is enabled, but the kernel is running using the
Radix MMU - *not* the "standard" MMU. So it is now actively confusing
to use it, because it implies that code is disabled or inactive when
the Radix MMU is in use, however that is not necessarily true.
So s/CONFIG_PPC_STD_MMU_64/CONFIG_PPC_BOOK3S_64/, and do some minor
formatting updates of some of the affected lines.
This will be a pain for backports, but c'est la vie.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r-- | arch/powerpc/kernel/asm-offsets.c | 4 | ||||
-rw-r--r-- | arch/powerpc/kernel/entry_64.S | 4 | ||||
-rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 8 | ||||
-rw-r--r-- | arch/powerpc/kernel/machine_kexec_64.c | 4 | ||||
-rw-r--r-- | arch/powerpc/kernel/mce_power.c | 4 | ||||
-rw-r--r-- | arch/powerpc/kernel/paca.c | 12 | ||||
-rw-r--r-- | arch/powerpc/kernel/pci_64.c | 4 | ||||
-rw-r--r-- | arch/powerpc/kernel/process.c | 12 | ||||
-rw-r--r-- | arch/powerpc/kernel/prom.c | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/setup-common.c | 4 |
10 files changed, 29 insertions, 29 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 8cfb20e..200623e 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -208,7 +208,7 @@ int main(void) OFFSET(TCD_ESEL_FIRST, tlb_core_data, esel_first); #endif /* CONFIG_PPC_BOOK3E */ -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 OFFSET(PACASLBCACHE, paca_struct, slb_cache); OFFSET(PACASLBCACHEPTR, paca_struct, slb_cache_ptr); OFFSET(PACAVMALLOCSLLP, paca_struct, vmalloc_sllp); @@ -230,7 +230,7 @@ int main(void) OFFSET(LPPACA_DTLIDX, lppaca, dtl_idx); OFFSET(LPPACA_YIELDCOUNT, lppaca, yield_count); OFFSET(PACA_DTL_RIDX, paca_struct, dtl_ridx); -#endif /* CONFIG_PPC_STD_MMU_64 */ +#endif /* CONFIG_PPC_BOOK3S_64 */ OFFSET(PACAEMERGSP, paca_struct, emergency_sp); #ifdef CONFIG_PPC_BOOK3S_64 OFFSET(PACAMCEMERGSP, paca_struct, mc_emergency_sp); diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 4a0fd4f..3320bca 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -539,7 +539,7 @@ _GLOBAL(_switch) std r6,PACACURRENT(r13) /* Set new 'current' */ ld r8,KSP(r4) /* new stack pointer */ -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 BEGIN_MMU_FTR_SECTION b 2f END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX) @@ -588,7 +588,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT) slbmte r7,r0 isync 2: -#endif /* CONFIG_PPC_STD_MMU_64 */ +#endif /* CONFIG_PPC_BOOK3S_64 */ CURRENT_THREAD_INFO(r7, r8) /* base of new stack */ /* Note: this uses SWITCH_FRAME_SIZE rather than INT_FRAME_SIZE diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 64c2bc3..6879aed 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -607,7 +607,7 @@ EXC_COMMON_BEGIN(slb_miss_common) cmpdi cr5,r11,MSR_RI crset 4*cr0+eq -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 BEGIN_MMU_FTR_SECTION bl slb_allocate END_MMU_FTR_SECTION_IFCLR(MMU_FTR_TYPE_RADIX) @@ -1497,7 +1497,7 @@ USE_TEXT_SECTION() */ .balign IFETCH_ALIGN_BYTES do_hash_page: - #ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 lis r0,DSISR_BAD_FAULT_64S@h ori r0,r0,DSISR_BAD_FAULT_64S@l and. r0,r4,r0 /* weird error? */ @@ -1528,7 +1528,7 @@ do_hash_page: /* Reload DSISR into r4 for the DABR check below */ ld r4,_DSISR(r1) -#endif /* CONFIG_PPC_STD_MMU_64 */ +#endif /* CONFIG_PPC_BOOK3S_64 */ /* Here we have a page fault that hash_page can't handle. */ handle_page_fault: @@ -1557,7 +1557,7 @@ handle_dabr_fault: 12: b ret_from_except_lite -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 /* We have a page fault that hash_page could handle but HV refused * the PTE insertion */ diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index 5c12e21..49d34d7 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -360,7 +360,7 @@ void default_machine_kexec(struct kimage *image) /* NOTREACHED */ } -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 /* Values we need to export to the second kernel via the device tree. */ static unsigned long htab_base; static unsigned long htab_size; @@ -402,4 +402,4 @@ static int __init export_htab_values(void) return 0; } late_initcall(export_htab_values); -#endif /* CONFIG_PPC_STD_MMU_64 */ +#endif /* CONFIG_PPC_BOOK3S_64 */ diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c index 82cabfc..1600ab1 100644 --- a/arch/powerpc/kernel/mce_power.c +++ b/arch/powerpc/kernel/mce_power.c @@ -168,7 +168,7 @@ void __flush_tlb_power9(unsigned int action) /* flush SLBs and reload */ -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 static void flush_and_reload_slb(void) { struct slb_shadow *slb; @@ -215,7 +215,7 @@ static void flush_erat(void) static int mce_flush(int what) { -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 if (what == MCE_FLUSH_SLB) { flush_and_reload_slb(); return 1; diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index 2ff2b8a..5d38d5e 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -90,7 +90,7 @@ static inline void free_lppacas(void) { } #endif /* CONFIG_PPC_BOOK3S */ -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 /* * 3 persistent SLBs are registered here. The buffer will be zero @@ -135,11 +135,11 @@ static struct slb_shadow * __init init_slb_shadow(int cpu) return s; } -#else /* CONFIG_PPC_STD_MMU_64 */ +#else /* !CONFIG_PPC_BOOK3S_64 */ static void __init allocate_slb_shadows(int nr_cpus, int limit) { } -#endif /* CONFIG_PPC_STD_MMU_64 */ +#endif /* CONFIG_PPC_BOOK3S_64 */ /* The Paca is an array with one entry per processor. Each contains an * lppaca, which contains the information shared between the @@ -170,9 +170,9 @@ void __init initialise_paca(struct paca_struct *new_paca, int cpu) new_paca->kexec_state = KEXEC_STATE_NONE; new_paca->__current = &init_task; new_paca->data_offset = 0xfeeeeeeeeeeeeeeeULL; -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 new_paca->slb_shadow_ptr = init_slb_shadow(cpu); -#endif /* CONFIG_PPC_STD_MMU_64 */ +#endif #ifdef CONFIG_PPC_BOOK3E /* For now -- if we have threads this will be adjusted later */ @@ -271,7 +271,7 @@ void copy_mm_to_paca(struct mm_struct *mm) get_paca()->mm_ctx_user_psize = context->user_psize; get_paca()->mm_ctx_sllp = context->sllp; #endif -#else /* CONFIG_PPC_BOOK3S */ +#else /* !CONFIG_PPC_BOOK3S */ return; #endif } diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 932b974..15ce030 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -90,14 +90,14 @@ int pcibios_unmap_io_space(struct pci_bus *bus) * to do an appropriate TLB flush here too */ if (bus->self) { -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 struct resource *res = bus->resource[0]; #endif pr_debug("IO unmapping for PCI-PCI bridge %s\n", pci_name(bus->self)); -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 __flush_hash_table_range(&init_mm, res->start + _IO_BASE, res->end + _IO_BASE + 1); #endif diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index c051dc2..2b602d6 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1164,7 +1164,7 @@ struct task_struct *__switch_to(struct task_struct *prev, } #endif /* CONFIG_PPC64 */ -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 batch = this_cpu_ptr(&ppc64_tlb_batch); if (batch->active) { current_thread_info()->local_flags |= _TLF_LAZY_MMU; @@ -1172,7 +1172,7 @@ struct task_struct *__switch_to(struct task_struct *prev, __flush_tlb_pending(batch); batch->active = 0; } -#endif /* CONFIG_PPC_STD_MMU_64 */ +#endif /* CONFIG_PPC_BOOK3S_64 */ #ifdef CONFIG_PPC_ADV_DEBUG_REGS switch_booke_debug_regs(&new->thread.debug); @@ -1218,7 +1218,7 @@ struct task_struct *__switch_to(struct task_struct *prev, last = _switch(old_thread, new_thread); -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 if (current_thread_info()->local_flags & _TLF_LAZY_MMU) { current_thread_info()->local_flags &= ~_TLF_LAZY_MMU; batch = this_cpu_ptr(&ppc64_tlb_batch); @@ -1247,7 +1247,7 @@ struct task_struct *__switch_to(struct task_struct *prev, : : "r"(dummy_copy_buffer), "r"(0)); } } -#endif /* CONFIG_PPC_STD_MMU_64 */ +#endif /* CONFIG_PPC_BOOK3S_64 */ return last; } @@ -1476,7 +1476,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) static void setup_ksp_vsid(struct task_struct *p, unsigned long sp) { -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 unsigned long sp_vsid; unsigned long llp = mmu_psize_defs[mmu_linear_psize].sllp; @@ -2056,7 +2056,7 @@ unsigned long arch_randomize_brk(struct mm_struct *mm) unsigned long base = mm->brk; unsigned long ret; -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 /* * If we are using 1TB segments and we are allowed to randomise * the heap, we can put it above 1TB so it is backed by a 1TB diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 101822b..b15bae2 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -229,7 +229,7 @@ static void __init check_cpu_pa_features(unsigned long node) ibm_pa_features, ARRAY_SIZE(ibm_pa_features)); } -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 static void __init init_mmu_slb_size(unsigned long node) { const __be32 *slb_size_ptr; diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 0ac741f..da4fd54 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -773,7 +773,7 @@ void arch_setup_pdev_archdata(struct platform_device *pdev) static __init void print_system_info(void) { pr_info("-----------------------------------------------------\n"); -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 pr_info("ppc64_pft_size = 0x%llx\n", ppc64_pft_size); #endif #ifdef CONFIG_PPC_STD_MMU_32 @@ -800,7 +800,7 @@ static __init void print_system_info(void) pr_info("firmware_features = 0x%016lx\n", powerpc_firmware_features); #endif -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 if (htab_address) pr_info("htab_address = 0x%p\n", htab_address); if (htab_hash_mask) |