diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 10:15:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 10:15:40 -0700 |
| commit | bac65d9d87b383471d8d29128319508d71b74180 (patch) | |
| tree | c087cca1f1db1045cce08a3bff7c775c66e437bf /arch/powerpc/include | |
| parent | f92e3da18b7d5941468040af962c201235148301 (diff) | |
| parent | 265601f034df3566f22da11240977aab8860f6a7 (diff) | |
Merge tag 'powerpc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Nothing really major this release, despite quite a lot of activity.
Just lots of things all over the place.
Some things of note include:
- Access via perf to a new type of PMU (IMC) on Power9, which can
count both core events as well as nest unit events (Memory
controller etc).
- Optimisations to the radix MMU TLB flushing, mostly to avoid
unnecessary Page Walk Cache (PWC) flushes when the structure of the
tree is not changing.
- Reworks/cleanups of do_page_fault() to modernise it and bring it
closer to other architectures where possible.
- Rework of our page table walking so that THP updates only need to
send IPIs to CPUs where the affected mm has run, rather than all
CPUs.
- The size of our vmalloc area is increased to 56T on 64-bit hash MMU
systems. This avoids problems with the percpu allocator on systems
with very sparse NUMA layouts.
- STRICT_KERNEL_RWX support on PPC32.
- A new sched domain topology for Power9, to capture the fact that
pairs of cores may share an L2 cache.
- Power9 support for VAS, which is a new mechanism for accessing
coprocessors, and initial support for using it with the NX
compression accelerator.
- Major work on the instruction emulation support, adding support for
many new instructions, and reworking it so it can be used to
implement the emulation needed to fixup alignment faults.
- Support for guests under PowerVM to use the Power9 XIVE interrupt
controller.
And probably that many things again that are almost as interesting,
but I had to keep the list short. Plus the usual fixes and cleanups as
always.
Thanks to: Alexey Kardashevskiy, Alistair Popple, Andreas Schwab,
Aneesh Kumar K.V, Anju T Sudhakar, Arvind Yadav, Balbir Singh,
Benjamin Herrenschmidt, Bhumika Goyal, Breno Leitao, Bryant G. Ly,
Christophe Leroy, Cédric Le Goater, Dan Carpenter, Dou Liyang,
Frederic Barrat, Gautham R. Shenoy, Geliang Tang, Geoff Levand, Hannes
Reinecke, Haren Myneni, Ivan Mikhaylov, John Allen, Julia Lawall,
LABBE Corentin, Laurentiu Tudor, Madhavan Srinivasan, Markus Elfring,
Masahiro Yamada, Matt Brown, Michael Neuling, Murilo Opsfelder Araujo,
Nathan Fontenot, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran,
Paul Mackerras, Rashmica Gupta, Rob Herring, Rui Teng, Sam Bobroff,
Santosh Sivaraj, Scott Wood, Shilpasri G Bhat, Sukadev Bhattiprolu,
Suraj Jitindar Singh, Tobin C. Harding, Victor Aoqui"
* tag 'powerpc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (321 commits)
powerpc/xive: Fix section __init warning
powerpc: Fix kernel crash in emulation of vector loads and stores
powerpc/xive: improve debugging macros
powerpc/xive: add XIVE Exploitation Mode to CAS
powerpc/xive: introduce H_INT_ESB hcall
powerpc/xive: add the HW IRQ number under xive_irq_data
powerpc/xive: introduce xive_esb_write()
powerpc/xive: rename xive_poke_esb() in xive_esb_read()
powerpc/xive: guest exploitation of the XIVE interrupt controller
powerpc/xive: introduce a common routine xive_queue_page_alloc()
powerpc/sstep: Avoid used uninitialized error
axonram: Return directly after a failed kzalloc() in axon_ram_probe()
axonram: Improve a size determination in axon_ram_probe()
axonram: Delete an error message for a failed memory allocation in axon_ram_probe()
powerpc/powernv/npu: Move tlb flush before launching ATSD
powerpc/macintosh: constify wf_sensor_ops structures
powerpc/iommu: Use permission-specific DEVICE_ATTR variants
powerpc/eeh: Delete an error out of memory message at init time
powerpc/mm: Use seq_putc() in two functions
macintosh: Convert to using %pOF instead of full_name
...
Diffstat (limited to 'arch/powerpc/include')
53 files changed, 698 insertions, 210 deletions
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild index 5c4fbc80dc6c..2542ea15d338 100644 --- a/arch/powerpc/include/asm/Kbuild +++ b/arch/powerpc/include/asm/Kbuild @@ -8,3 +8,4 @@ generic-y += mcs_spinlock.h generic-y += preempt.h generic-y += rwsem.h generic-y += vtime.h +generic-y += msi.h diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h index cee3aa087653..7f2a7702596c 100644 --- a/arch/powerpc/include/asm/asm-compat.h +++ b/arch/powerpc/include/asm/asm-compat.h @@ -25,7 +25,7 @@ #define PPC_LCMPI stringify_in_c(cmpdi) #define PPC_LCMPLI stringify_in_c(cmpldi) #define PPC_LCMP stringify_in_c(cmpd) -#define PPC_LONG stringify_in_c(.llong) +#define PPC_LONG stringify_in_c(.8byte) #define PPC_LONG_ALIGN stringify_in_c(.balign 8) #define PPC_TLNEI stringify_in_c(tdnei) #define PPC_LLARX(t, a, b, eh) PPC_LDARX(t, a, b, eh) diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h index 7fb755880409..4d453f979553 100644 --- a/arch/powerpc/include/asm/book3s/32/pgtable.h +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h @@ -294,13 +294,11 @@ static inline void __ptep_set_access_flags(struct mm_struct *mm, #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 3 }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val << 3 }) -extern int get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep, - pmd_t **pmdp); - int map_kernel_page(unsigned long va, phys_addr_t pa, int flags); /* Generic accessors to PTE bits */ static inline int pte_write(pte_t pte) { return !!(pte_val(pte) & _PAGE_RW);} +static inline int pte_read(pte_t pte) { return 1; } static inline int pte_dirty(pte_t pte) { return !!(pte_val(pte) & _PAGE_DIRTY); } static inline int pte_young(pte_t pte) { return !!(pte_val(pte) & _PAGE_ACCESSED); } static inline int pte_special(pte_t pte) { return !!(pte_val(pte) & _PAGE_SPECIAL); } diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h index 36fc7bfe9e11..f88452019114 100644 --- a/arch/powerpc/include/asm/book3s/64/hash.h +++ b/arch/powerpc/include/asm/book3s/64/hash.h @@ -40,7 +40,7 @@ * Define the address range of the kernel non-linear virtual area */ #define H_KERN_VIRT_START ASM_CONST(0xD000000000000000) -#define H_KERN_VIRT_SIZE ASM_CONST(0x0000100000000000) +#define H_KERN_VIRT_SIZE ASM_CONST(0x0000400000000000) /* 64T */ /* * The vmalloc space starts at the beginning of that region, and @@ -48,9 +48,11 @@ * (we keep a quarter for the virtual memmap) */ #define H_VMALLOC_START H_KERN_VIRT_START -#define H_VMALLOC_SIZE (H_KERN_VIRT_SIZE >> 1) +#define H_VMALLOC_SIZE ASM_CONST(0x380000000000) /* 56T */ #define H_VMALLOC_END (H_VMALLOC_START + H_VMALLOC_SIZE) +#define H_KERN_IO_START H_VMALLOC_END + /* * Region IDs */ diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h index 5c28bd6f2ae1..2d1ca488ca44 100644 --- a/arch/powerpc/include/asm/book3s/64/hugetlb.h +++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h @@ -54,9 +54,7 @@ static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, #ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE static inline bool gigantic_page_supported(void) { - if (radix_enabled()) - return true; - return false; + return true; } #endif diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h b/arch/powerpc/include/asm/book3s/64/mmu-hash.h index 6981a52b3887..f28d21c69f79 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h +++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h @@ -468,7 +468,7 @@ extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend, int psize, int ssize); int htab_remove_mapping(unsigned long vstart, unsigned long vend, int psize, int ssize); -extern void add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages); +extern void pseries_add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages); extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr); #ifdef CONFIG_PPC_PSERIES diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h index 5b4023c616f7..c3b00e8ff791 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu.h +++ b/arch/powerpc/include/asm/book3s/64/mmu.h @@ -83,6 +83,9 @@ typedef struct { mm_context_id_t id; u16 user_psize; /* page size index */ + /* Number of bits in the mm_cpumask */ + atomic_t active_cpus; + /* NPU NMMU context */ struct npu_context *npu_context; @@ -97,11 +100,6 @@ typedef struct { #ifdef CONFIG_PPC_SUBPAGE_PROT struct subpage_prot_table spt; #endif /* CONFIG_PPC_SUBPAGE_PROT */ -#ifdef CONFIG_PPC_ICSWX - struct spinlock *cop_lockp; /* guard acop and cop_pid */ - unsigned long acop; /* mask of enabled coprocessor types */ - unsigned int cop_pid; /* pid value used with coprocessors */ -#endif /* CONFIG_PPC_ICSWX */ #ifdef CONFIG_PPC_64K_PAGES /* for 4K PTE fragment support */ void *pte_frag; diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h index e2329db9d6f4..1fcfa425cefa 100644 --- a/arch/powerpc/include/asm/book3s/64/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h @@ -41,8 +41,6 @@ extern struct kmem_cache *pgtable_cache[]; pgtable_cache[(shift) - 1]; \ }) -#define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO - extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int); extern void pte_fragment_free(unsigned long *, int); extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift); diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 818a58fc3f4f..b9aff515b4de 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -272,8 +272,10 @@ extern unsigned long __vmalloc_end; extern unsigned long __kernel_virt_start; extern unsigned long __kernel_virt_size; +extern unsigned long __kernel_io_start; #define KERN_VIRT_START __kernel_virt_start #define KERN_VIRT_SIZE __kernel_virt_size +#define KERN_IO_START __kernel_io_start extern struct page *vmemmap; extern unsigned long ioremap_bot; extern unsigned long pci_io_base; @@ -298,7 +300,6 @@ extern unsigned long pci_io_base; * PHB_IO_BASE = ISA_IO_BASE + 64K to ISA_IO_BASE + 2G, PHB IO spaces * IOREMAP_BASE = ISA_IO_BASE + 2G to VMALLOC_START + PGTABLE_RANGE */ -#define KERN_IO_START (KERN_VIRT_START + (KERN_VIRT_SIZE >> 1)) #define FULL_IO_SIZE 0x80000000ul #define ISA_IO_BASE (KERN_IO_START) #define ISA_IO_END (KERN_IO_START + 0x10000ul) @@ -409,6 +410,11 @@ static inline int pte_write(pte_t pte) return __pte_write(pte) || pte_savedwrite(pte); } +static inline int pte_read(pte_t pte) +{ + return !!(pte_raw(pte) & cpu_to_be64(_PAGE_READ)); +} + #define __HAVE_ARCH_PTEP_SET_WRPROTECT static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) @@ -1167,6 +1173,7 @@ static inline bool arch_needs_pgtable_deposit(void) return false; return true; } +extern void serialize_against_pte_lookup(struct mm_struct *mm); static inline pmd_t pmd_mkdevmap(pmd_t pmd) diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h index 544440b5aff3..1e5ba94e62ef 100644 --- a/arch/powerpc/include/asm/book3s/64/radix.h +++ b/arch/powerpc/include/asm/book3s/64/radix.h @@ -110,6 +110,8 @@ */ #define RADIX_VMEMMAP_BASE (RADIX_VMALLOC_END) +#define RADIX_KERN_IO_START (RADIX_KERN_VIRT_START + (RADIX_KERN_VIRT_SIZE >> 1)) + #ifndef __ASSEMBLY__ #define RADIX_PTE_TABLE_SIZE (sizeof(pte_t) << RADIX_PTE_INDEX_SIZE) #define RADIX_PMD_TABLE_SIZE (sizeof(pmd_t) << RADIX_PMD_INDEX_SIZE) diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h index cc7fbde4f53c..9b433a624bf3 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h @@ -22,22 +22,21 @@ extern void radix__flush_tlb_kernel_range(unsigned long start, unsigned long end extern void radix__local_flush_tlb_mm(struct mm_struct *mm); extern void radix__local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); -extern void radix__local_flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr); extern void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr, int psize); extern void radix__tlb_flush(struct mmu_gather *tlb); #ifdef CONFIG_SMP extern void radix__flush_tlb_mm(struct mm_struct *mm); extern void radix__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); -extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr); extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr, int psize); #else #define radix__flush_tlb_mm(mm) radix__local_flush_tlb_mm(mm) #define radix__flush_tlb_page(vma,addr) radix__local_flush_tlb_page(vma,addr) #define radix__flush_tlb_page_psize(mm,addr,p) radix__local_flush_tlb_page_psize(mm,addr,p) -#define radix__flush_tlb_pwc(tlb, addr) radix__local_flush_tlb_pwc(tlb, addr) #endif +extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr); +extern void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr); extern void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa, unsigned long page_size); extern void radix__flush_tlb_lpid(unsigned long lpid); diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h index 87fcc1948817..7ee763d3bea9 100644 --- a/arch/powerpc/include/asm/bug.h +++ b/arch/powerpc/include/asm/bug.h @@ -133,6 +133,7 @@ extern int do_page_fault(struct pt_regs *, unsigned long, unsigned long); extern void bad_page_fault(struct pt_regs *, unsigned long, int); extern void _exception(int, struct pt_regs *, int, unsigned long); extern void die(const char *, struct pt_regs *, long); +extern bool die_will_crash(void); #endif /* !__ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h index 5a90292afbad..d122f7f957ce 100644 --- a/arch/powerpc/include/asm/cache.h +++ b/arch/powerpc/include/asm/cache.h @@ -5,7 +5,7 @@ /* bytes per L1 cache line */ -#if defined(CONFIG_8xx) || defined(CONFIG_403GCX) +#if defined(CONFIG_PPC_8xx) || defined(CONFIG_403GCX) #define L1_CACHE_SHIFT 4 #define MAX_COPY_PREFETCH 1 #elif defined(CONFIG_PPC_E500MC) diff --git a/arch/powerpc/include/asm/cpuidle.h b/arch/powerpc/include/asm/cpuidle.h index 52586f9956bb..eb43b5c3a7b5 100644 --- a/arch/powerpc/include/asm/cpuidle.h +++ b/arch/powerpc/include/asm/cpuidle.h @@ -67,6 +67,17 @@ #define ERR_DEEP_STATE_ESL_MISMATCH -2 #ifndef __ASSEMBLY__ +/* Additional SPRs that need to be saved/restored during stop */ +struct stop_sprs { + u64 pid; + u64 ldbar; + u64 fscr; + u64 hfscr; + u64 mmcr1; + u64 mmcr2; + u64 mmcra; +}; + extern u32 pnv_fastsleep_workaround_at_entry[]; extern u32 pnv_fastsleep_workaround_at_exit[]; @@ -90,20 +101,4 @@ static inline void report_invalid_psscr_val(u64 psscr_val, int err) #endif -/* Idle state entry routines */ -#ifdef CONFIG_PPC_P7_NAP -#define IDLE_STATE_ENTER_SEQ(IDLE_INST) \ - /* Magic NAP/SLEEP/WINKLE mode enter sequence */ \ - std r0,0(r1); \ - ptesync; \ - ld r0,0(r1); \ -236: cmpd cr0,r0,r0; \ - bne 236b; \ - IDLE_INST; \ - -#define IDLE_STATE_ENTER_SEQ_NORET(IDLE_INST) \ - IDLE_STATE_ENTER_SEQ(IDLE_INST) \ - b . -#endif /* CONFIG_PPC_P7_NAP */ - #endif diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index d02ad93bf708..a9bf921f4efc 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -513,7 +513,7 @@ enum { #else CPU_FTRS_GENERIC_32 | #endif -#ifdef CONFIG_8xx +#ifdef CONFIG_PPC_8xx CPU_FTRS_8XX | #endif #ifdef CONFIG_40x @@ -565,7 +565,7 @@ enum { #else CPU_FTRS_GENERIC_32 & #endif -#ifdef CONFIG_8xx +#ifdef CONFIG_PPC_8xx CPU_FTRS_8XX & #endif #ifdef CONFIG_40x diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 8e37b71674f4..9847ae3a12d1 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -131,7 +131,6 @@ static inline bool eeh_pe_passed(struct eeh_pe *pe) struct eeh_dev { int mode; /* EEH mode */ int class_code; /* Class code of the device */ - int config_addr; /* Config address */ int pe_config_addr; /* PE config address */ u32 config_space[16]; /* Saved PCI config space */ int pcix_cap; /* Saved PCIx capability */ @@ -141,7 +140,6 @@ struct eeh_dev { struct eeh_pe *pe; /* Associated PE */ struct list_head list; /* Form link list in the PE */ struct list_head rmv_list; /* Record the removed edevs */ - struct pci_controller *phb; /* Associated PHB */ struct pci_dn *pdn; /* Associated PCI device node */ struct pci_dev *pdev; /* Associated PCI device */ bool in_error; /* Error flag for edev */ @@ -262,7 +260,8 @@ typedef void *(*eeh_traverse_func)(void *data, void *flag); void eeh_set_pe_aux_size(int size); int eeh_phb_pe_create(struct pci_controller *phb); struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb); -struct eeh_pe *eeh_pe_get(struct eeh_dev *edev); +struct eeh_pe *eeh_pe_get(struct pci_controller *phb, + int pe_no, int config_addr); int eeh_add_to_parent_pe(struct eeh_dev *edev); int eeh_rmv_from_parent_pe(struct eeh_dev *edev); void eeh_pe_update_time_stamp(struct eeh_pe *pe); diff --git a/arch/powerpc/include/asm/fadump.h b/arch/powerpc/include/asm/fadump.h index ce88bbe1d809..5a23010af600 100644 --- a/arch/powerpc/include/asm/fadump.h +++ b/arch/powerpc/include/asm/fadump.h @@ -209,11 +209,13 @@ extern int early_init_dt_scan_fw_dump(unsigned long node, extern int fadump_reserve_mem(void); extern int setup_fadump(void); extern int is_fadump_active(void); +extern int should_fadump_crash(void); extern void crash_fadump(struct pt_regs *, const char *); extern void fadump_cleanup(void); #else /* CONFIG_FA_DUMP */ static inline int is_fadump_active(void) { return 0; } +static inline int should_fadump_crash(void) { return 0; } static inline void crash_fadump(struct pt_regs *regs, const char *str) { } #endif #endif diff --git a/arch/powerpc/include/asm/feature-fixups.h b/arch/powerpc/include/asm/feature-fixups.h index 2de2319b99e2..8f88f771cc55 100644 --- a/arch/powerpc/include/asm/feature-fixups.h +++ b/arch/powerpc/include/asm/feature-fixups.h @@ -19,11 +19,11 @@ */ #if defined(CONFIG_PPC64) && !defined(__powerpc64__) /* 64 bits kernel, 32 bits code (ie. vdso32) */ -#define FTR_ENTRY_LONG .llong +#define FTR_ENTRY_LONG .8byte #define FTR_ENTRY_OFFSET .long 0xffffffff; .long #elif defined(CONFIG_PPC64) -#define FTR_ENTRY_LONG .llong -#define FTR_ENTRY_OFFSET .llong +#define FTR_ENTRY_LONG .8byte +#define FTR_ENTRY_OFFSET .8byte #else #define FTR_ENTRY_LONG .long #define FTR_ENTRY_OFFSET .long diff --git a/arch/powerpc/include/asm/fixmap.h b/arch/powerpc/include/asm/fixmap.h index 4508b322f2cd..6c40dfda5912 100644 --- a/arch/powerpc/include/asm/fixmap.h +++ b/arch/powerpc/include/asm/fixmap.h @@ -17,6 +17,7 @@ #ifndef __ASSEMBLY__ #include <linux/kernel.h> #include <asm/page.h> +#include <asm/pgtable.h> #ifdef CONFIG_HIGHMEM #include <linux/threads.h> #include <asm/kmap_types.h> @@ -62,9 +63,6 @@ enum fixed_addresses { __end_of_fixed_addresses }; -extern void __set_fixmap (enum fixed_addresses idx, - phys_addr_t phys, pgprot_t flags); - #define __FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) #define FIXADDR_START (FIXADDR_TOP - __FIXADDR_SIZE) @@ -72,5 +70,11 @@ extern void __set_fixmap (enum fixed_addresses idx, #include <asm-generic/fixmap.h> +static inline void __set_fixmap(enum fixed_addresses idx, + phys_addr_t phys, pgprot_t flags) +{ + map_kernel_page(fix_to_virt(idx), phys, pgprot_val(flags)); +} + #endif /* !__ASSEMBLY__ */ #endif diff --git a/arch/powerpc/include/asm/fs_pd.h b/arch/powerpc/include/asm/fs_pd.h index f79d6c74eb2a..8def56ec05c6 100644 --- a/arch/powerpc/include/asm/fs_pd.h +++ b/arch/powerpc/include/asm/fs_pd.h @@ -26,7 +26,7 @@ #define cpm2_unmap(addr) do {} while(0) #endif -#ifdef CONFIG_8xx +#ifdef CONFIG_PPC_8xx #include <asm/8xx_immap.h> extern immap_t __iomem *mpc8xx_immr; diff --git a/arch/powerpc/include/asm/hardirq.h b/arch/powerpc/include/asm/hardirq.h index 8add8b861e8d..c97603d617e3 100644 --- a/arch/powerpc/include/asm/hardirq.h +++ b/arch/powerpc/include/asm/hardirq.h @@ -12,6 +12,10 @@ typedef struct { unsigned int mce_exceptions; unsigned int spurious_irqs; unsigned int hmi_exceptions; + unsigned int sreset_irqs; +#ifdef CONFIG_PPC_WATCHDOG + unsigned int soft_nmi_irqs; +#endif #ifdef CONFIG_PPC_DOORBELL unsigned int doorbell_irqs; #endif diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h index 7f4025a6c69e..b8a0fb442c64 100644 --- a/arch/powerpc/include/asm/hugetlb.h +++ b/arch/powerpc/include/asm/hugetlb.h @@ -218,18 +218,4 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr, } #endif /* CONFIG_HUGETLB_PAGE */ -/* - * FSL Book3E platforms require special gpage handling - the gpages - * are reserved early in the boot process by memblock instead of via - * the .dts as on IBM platforms. - */ -#if defined(CONFIG_HUGETLB_PAGE) && (defined(CONFIG_PPC_FSL_BOOK3E) || \ - defined(CONFIG_PPC_8xx)) -extern void __init reserve_hugetlb_gpages(void); -#else -static inline void reserve_hugetlb_gpages(void) -{ -} -#endif - #endif /* _ASM_POWERPC_HUGETLB_H */ diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index 57d38b504ff7..3d34dc0869f6 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -280,7 +280,18 @@ #define H_RESIZE_HPT_COMMIT 0x370 #define H_REGISTER_PROC_TBL 0x37C #define H_SIGNAL_SYS_RESET 0x380 -#define MAX_HCALL_OPCODE H_SIGNAL_SYS_RESET +#define H_INT_GET_SOURCE_INFO 0x3A8 +#define H_INT_SET_SOURCE_CONFIG 0x3AC +#define H_INT_GET_SOURCE_CONFIG 0x3B0 +#define H_INT_GET_QUEUE_INFO 0x3B4 +#define H_INT_SET_QUEUE_CONFIG 0x3B8 +#define H_INT_GET_QUEUE_CONFIG 0x3BC +#define H_INT_SET_OS_REPORTING_LINE 0x3C0 +#define H_INT_GET_OS_REPORTING_LINE 0x3C4 +#define H_INT_ESB 0x3C8 +#define H_INT_SYNC 0x3CC +#define H_INT_RESET 0x3D0 +#define MAX_HCALL_OPCODE H_INT_RESET /* H_VIOCTL functions */ #define H_GET_VIOA_DUMP_SIZE 0x01 diff --git a/arch/powerpc/include/asm/icswx.h b/arch/powerpc/include/asm/icswx.h index 27e588f6c72e..6a2c87577541 100644 --- a/arch/powerpc/include/asm/icswx.h +++ b/arch/powerpc/include/asm/icswx.h @@ -69,7 +69,10 @@ struct coprocessor_completion_block { #define CSB_CC_WR_PROTECTION (16) #define CSB_CC_UNKNOWN_CODE (17) #define CSB_CC_ABORT (18) +#define CSB_CC_EXCEED_BYTE_COUNT (19) /* P9 or later */ #define CSB_CC_TRANSPORT (20) +#define CSB_CC_INVALID_CRB (21) /* P9 or later */ +#define CSB_CC_INVALID_DDE (30) /* P9 or later */ #define CSB_CC_SEGMENTED_DDL (31) #define CSB_CC_PROGRESS_POINT (32) #define CSB_CC_DDE_OVERFLOW (33) diff --git a/arch/powerpc/include/asm/imc-pmu.h b/arch/powerpc/include/asm/imc-pmu.h new file mode 100644 index 000000000000..7f74c282710f --- /dev/null +++ b/arch/powerpc/include/asm/imc-pmu.h @@ -0,0 +1,128 @@ +#ifndef __ASM_POWERPC_IMC_PMU_H +#define __ASM_POWERPC_IMC_PMU_H + +/* + * IMC Nest Performance Monitor counter support. + * + * Copyright (C) 2017 Madhavan Srinivasan, IBM Corporation. + * (C) 2017 Anju T Sudhakar, IBM Corporation. + * (C) 2017 Hemant K Shaw, IBM Corporation. + * + * 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 later version. + */ + +#include <linux/perf_event.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/io.h> +#include <asm/opal.h> + +/* + * For static allocation of some of the structures. + */ +#define IMC_MAX_PMUS 32 + +/* + * Compatibility macros for IMC devices + */ +#define IMC_DTB_COMPAT "ibm,opal-in-memory-counters" +#define IMC_DTB_UNIT_COMPAT "ibm,imc-counters" + + +/* + * LDBAR: Counter address and Enable/Disable macro. + * perf/imc-pmu.c has the LDBAR layout information. + */ +#define THREAD_IMC_LDBAR_MASK 0x0003ffffffffe000ULL +#define THREAD_IMC_ENABLE 0x8000000000000000ULL + +/* + * Structure to hold memory address information for imc units. + */ +struct imc_mem_info { + u64 *vbase; + u32 id; +}; + +/* + * Place holder for nest pmu events and values. + */ +struct imc_events { + u32 value; + char *name; + char *unit; + char *scale; +}; + +/* Event attribute array index */ +#define IMC_FORMAT_ATTR 0 +#define IMC_EVENT_ATTR 1 +#define IMC_CPUMASK_ATTR 2 +#define IMC_NULL_ATTR 3 + +/* PMU Format attribute macros */ +#define IMC_EVENT_OFFSET_MASK 0xffffffffULL + +/* + * Device tree parser code detects IMC pmu support and + * registers new IMC pmus. This structure will hold the + * pmu functions, events, counter memory information + * and attrs for each imc pmu and will be referenced at + * the time of pmu registration. + */ +struct imc_pmu { + struct pmu pmu; + struct imc_mem_info *mem_info; + struct imc_events **events; + /* + * Attribute groups for the PMU. Slot 0 used for + * format attribute, slot 1 used for cpusmask attribute, + * slot 2 used for event attribute. Slot 3 keep as + * NULL. + */ + const struct attribute_group *attr_groups[4]; + u32 counter_mem_size; + int domain; + /* + * flag to notify whether the memory is mmaped + * or allocated by kernel. + */ + bool imc_counter_mmaped; +}; + +/* + * Structure to hold id, lock and reference count for the imc events which + * are inited. + */ +struct imc_pmu_ref { + struct mutex lock; + unsigned int id; + int refc; +}; + +/* + * In-Memory Collection Counters type. + * Data comes from Device tree. + * Three device type are supported. + */ + +enum { + IMC_TYPE_THREAD = 0x1, + IMC_TYPE_CORE = 0x4, + IMC_TYPE_CHIP = 0x10, +}; + +/* + * Domains for IMC PMUs + */ +#define IMC_DOMAIN_NEST 1 +#define IMC_DOMAIN_CORE 2 +#define IMC_DOMAIN_THREAD 3 + +extern int init_imc_pmu(struct device_node *parent, + struct imc_pmu *pmu_ptr, int pmu_id); +extern void thread_imc_disable(void); +#endif /* __ASM_POWERPC_IMC_PMU_H */ diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h index 7cea76f11c26..83596f32f50b 100644 --- a/arch/powerpc/include/asm/kvm_book3s_asm.h +++ b/arch/powerpc/include/asm/kvm_book3s_asm.h @@ -104,6 +104,10 @@ struct kvmppc_host_state { u8 napping; #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE + /* + * hwthread_req/hwthread_state pair is used to pull sibling threads + * out of guest on pre-ISAv3.0B CPUs where threads share MMU. + */ u8 hwthread_req; u8 hwthread_state; u8 host_ipi; diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index cd2fc1cc1cc7..73b92017b6d7 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -76,7 +76,6 @@ struct machdep_calls { void __noreturn (*restart)(char *cmd); void __noreturn (*halt)(void); - void (*panic)(char *str); void (*cpu_die)(void); long (*time_init)(void); /* Optional, may be NULL */ diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index 35bec1c5bd5a..309592589e30 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h @@ -77,76 +77,8 @@ extern void switch_cop(struct mm_struct *next); extern int use_cop(unsigned long acop, struct mm_struct *mm); extern void drop_cop(unsigned long acop, struct mm_struct *mm); -/* - * switch_mm is the entry point called from the architecture independent - * code in kernel/sched/core.c - */ -static inline void switch_mm_irqs_off(struct mm_struct *prev, - struct mm_struct *next, - struct task_struct *tsk) -{ - bool new_on_cpu = false; - - /* Mark this context has been used on the new CPU */ - if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next))) { - cpumask_set_cpu(smp_processor_id(), mm_cpumask(next)); - - /* - * This full barrier orders the store to the cpumask above vs - * a subsequent operation which allows this CPU to begin loading - * translations for next. - * - * When using the radix MMU that operation is the load of the - * MMU context id, which is then moved to SPRN_PID. - * - * For the hash MMU it is either the first load from slb_cache - * in switch_slb(), and/or the store of paca->mm_ctx_id in - * copy_mm_to_paca(). - * - * On the read side the barrier is in pte_xchg(), which orders - * the store to the PTE vs the load of mm_cpumask. - */ - smp_mb(); - - new_on_cpu = true; - } - - /* 32-bit keeps track of the current PGDIR in the thread struct */ -#ifdef CONFIG_PPC32 - tsk->thread.pgdir = next->pgd; -#endif /* CONFIG_PPC32 */ - - /* 64-bit Book3E keeps track of current PGD in the PACA */ -#ifdef CONFIG_PPC_BOOK3E_64 - get_paca()->pgd = next->pgd; -#endif - /* Nothing else to do if we aren't actually switching */ - if (prev == next) - return; - -#ifdef CONFIG_PPC_ICSWX - /* Switch coprocessor context only if prev or next uses a coprocessor */ - if (prev->context.acop || next->context.acop) - switch_cop(next); -#endif /* CONFIG_PPC_ICSWX */ - - /* We must stop all altivec streams before changing the HW - * context - */ -#ifdef CONFIG_ALTIVEC - if (cpu_has_feature(CPU_FTR_ALTIVEC)) - asm volatile ("dssall"); -#endif /* CONFIG_ALTIVEC */ - - if (new_on_cpu) - radix_kvm_prefetch_workaround(next); - - /* - * The actual HW switching method differs between the various - * sub architectures. Out of line for now - */ - switch_mmu_context(prev, next, tsk); -} +extern void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next, + struct task_struct *tsk); static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) @@ -168,11 +100,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, */ static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next) { - unsigned long flags; - - local_irq_save(flags); switch_mm(prev, next, current); - local_irq_restore(flags); } /* We don't currently use enter_lazy_tlb() for anything */ diff --git a/arch/powerpc/include/asm/nmi.h b/arch/powerpc/include/asm/nmi.h index 6f8e79cd35d8..3760150a0ff0 100644 --- a/arch/powerpc/include/asm/nmi.h +++ b/arch/powerpc/include/asm/nmi.h @@ -1,9 +1,8 @@ #ifndef _ASM_NMI_H #define _ASM_NMI_H -#ifdef CONFIG_HARDLOCKUP_DETECTOR +#ifdef CONFIG_PPC_WATCHDOG extern void arch_touch_nmi_watchdog(void); - extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self); #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h index 91314268f04f..185c6a47f9ba 100644 --- a/arch/powerpc/include/asm/nohash/32/pgtable.h +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h @@ -121,7 +121,7 @@ extern int icache_44x_need_flush; #include <asm/nohash/pte-book3e.h> #elif defined(CONFIG_FSL_BOOKE) #include <asm/nohash/32/pte-fsl-booke.h> -#elif defined(CONFIG_8xx) +#elif defined(CONFIG_PPC_8xx) #include <asm/nohash/32/pte-8xx.h> #endif @@ -337,9 +337,6 @@ static inline void __ptep_set_access_flags(struct mm_struct *mm, #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 3 }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val << 3 }) -extern int get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep, - pmd_t **pmdp); - int map_kernel_page(unsigned long va, phys_addr_t pa, int flags); #endif /* !__ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h index e5805ad78e12..17989c3d9a24 100644 --- a/arch/powerpc/include/asm/nohash/pgtable.h +++ b/arch/powerpc/include/asm/nohash/pgtable.h @@ -14,6 +14,7 @@ static inline int pte_write(pte_t pte) { return (pte_val(pte) & (_PAGE_RW | _PAGE_RO)) != _PAGE_RO; } +static inline int pte_read(pte_t pte) { return 1; } static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } static inline int pte_special(pte_t pte) { return pte_val(pte) & _PAGE_SPECIAL; } diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h index 3130a73652c7..450a60b81d2a 100644 --- a/arch/powerpc/include/asm/opal-api.h +++ b/arch/powerpc/include/asm/opal-api.h @@ -42,6 +42,7 @@ #define OPAL_I2C_STOP_ERR -24 #define OPAL_XIVE_PROVISIONING -31 #define OPAL_XIVE_FREE_ACTIVE -32 +#define OPAL_TIMEOUT -33 /* API Tokens (in r0) */ #define OPAL_INVALID_CALL -1 @@ -190,7 +191,16 @@ #define OPAL_NPU_INIT_CONTEXT 146 #define OPAL_NPU_DESTROY_CONTEXT 147 #define OPAL_NPU_MAP_LPAR 148 -#define OPAL_LAST 148 +#define OPAL_IMC_COUNTERS_INIT 149 +#define OPAL_IMC_COUNTERS_START 150 +#define OPAL_IMC_COUNTERS_STOP 151 +#define OPAL_GET_POWERCAP 152 +#define OPAL_SET_POWERCAP 153 +#define OPAL_GET_POWER_SHIFT_RATIO 154 +#define OPAL_SET_POWER_SHIFT_RATIO 155 +#define OPAL_SENSOR_GROUP_CLEAR 156 +#define OPAL_PCI_SET_P2P 157 +#define OPAL_LAST 157 /* Device tree flags */ @@ -1084,6 +1094,18 @@ enum { XIVE_DUMP_EMU_STATE = 5, }; +/* "type" argument options for OPAL_IMC_COUNTERS_* calls */ +enum { + OPAL_IMC_COUNTERS_NEST = 1, + OPAL_IMC_COUNTERS_CORE = 2, +}; + + +/* PCI p2p descriptor */ +#define OPAL_PCI_P2P_ENABLE 0x1 +#define OPAL_PCI_P2P_LOAD 0x2 +#define OPAL_PCI_P2P_STORE 0x4 + #endif /* __ASSEMBLY__ */ #endif /* __OPAL_API_H */ diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 588fb1c23af9..726c23304a57 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -50,7 +50,7 @@ int64_t opal_tpo_write(uint64_t token, uint32_t year_mon_day, uint32_t hour_min); int64_t opal_cec_power_down(uint64_t request); int64_t opal_cec_reboot(void); -int64_t opal_cec_reboot2(uint32_t reboot_type, char *diag); +int64_t opal_cec_reboot2(uint32_t reboot_type, const char *diag); int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset); int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset); int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask); @@ -267,6 +267,19 @@ int64_t opal_xive_allocate_irq(uint32_t chip_id); int64_t opal_xive_free_irq(uint32_t girq); int64_t opal_xive_sync(uint32_t type, uint32_t id); int64_t opal_xive_dump(uint32_t type, uint32_t id); +int64_t opal_pci_set_p2p(uint64_t phb_init, uint64_t phb_target, + uint64_t desc, uint16_t pe_number); + +int64_t opal_imc_counters_init(uint32_t type, uint64_t address, + uint64_t cpu_pir); +int64_t opal_imc_counters_start(uint32_t type, uint64_t cpu_pir); +int64_t opal_imc_counters_stop(uint32_t type, uint64_t cpu_pir); + +int opal_get_powercap(u32 handle, int token, u32 *pcap); +int opal_set_powercap(u32 handle, int token, u32 pcap); +int opal_get_power_shift_ratio(u32 handle, int token, u32 *psr); +int opal_set_power_shift_ratio(u32 handle, int token, u32 psr); +int opal_sensor_group_clear(u32 group_hndl, int token); /* Internal functions */ extern int early_init_dt_scan_opal(unsigned long node, const char *uname, @@ -345,6 +358,10 @@ static inline int opal_get_async_rc(struct opal_msg msg) void opal_wake_poller(void); +void opal_powercap_init(void); +void opal_psr_init(void); +void opal_sensor_groups_init(void); + #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_OPAL_H */ diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index dc88a31cc79a..04b60af027ae 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -31,6 +31,7 @@ #endif #include <asm/accounting.h> #include <asm/hmi.h> +#include <asm/cpuidle.h> register struct paca_struct *local_paca asm("r13"); @@ -183,6 +184,12 @@ struct paca_struct { struct paca_struct **thread_sibling_pacas; /* The PSSCR value that the kernel requested before going to stop */ u64 requested_psscr; + + /* + * Save area for additional SPRs that need to be + * saved/restored during cpuidle stop. + */ + struct stop_sprs stop_sprs; #endif #ifdef CONFIG_PPC_STD_MMU_64 diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 56c67d3f0108..0b8aa1fe2d5f 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -195,7 +195,6 @@ struct pci_dn { struct pci_dn *parent; struct pci_controller *phb; /* for pci devices */ struct iommu_table_group *table_group; /* for phb's or bridges */ - struct device_node *node; /* back-pointer to the device_node */ int pci_ext_config_space; /* for pci devices */ diff --git a/arch/powerpc/include/asm/pgalloc.h b/arch/powerpc/include/asm/pgalloc.h index d795c5d5789c..45ae1212ab8a 100644 --- a/arch/powerpc/include/asm/pgalloc.h +++ b/arch/powerpc/include/asm/pgalloc.h @@ -17,6 +17,8 @@ static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp) } #endif /* MODULE */ +#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO) + #ifdef CONFIG_PPC_BOOK3S #include <asm/book3s/pgalloc.h> #else diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index afae9a336136..7d0d38f58243 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -66,22 +66,14 @@ extern int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr, #ifndef CONFIG_TRANSPARENT_HUGEPAGE #define pmd_large(pmd) 0 #endif -pte_t *__find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea, - bool *is_thp, unsigned *shift); -static inline pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea, - bool *is_thp, unsigned *shift) -{ - VM_WARN(!arch_irqs_disabled(), - "%s called with irq enabled\n", __func__); - return __find_linux_pte_or_hugepte(pgdir, ea, is_thp, shift); -} +/* can we use this in kvm */ unsigned long vmalloc_to_phys(void *vmalloc_addr); void pgtable_cache_add(unsigned shift, void (*ctor)(void *)); void pgtable_cache_init(void); -#ifdef CONFIG_STRICT_KERNEL_RWX +#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_PPC32) void mark_initmem_nx(void); #else static inline void mark_initmem_nx(void) { } diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h index de9681034353..3e5cf251ad9a 100644 --- a/arch/powerpc/include/asm/pnv-pci.h +++ b/arch/powerpc/include/asm/pnv-pci.h @@ -26,6 +26,8 @@ extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state); extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state); extern int pnv_pci_set_power_state(uint64_t id, uint8_t state, struct opal_msg *msg); +extern int pnv_pci_set_p2p(struct pci_dev *initiator, struct pci_dev *target, + u64 desc); int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode); int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index fa9ebaead91e..ce0930d68857 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -193,6 +193,7 @@ #define PPC_INST_CLRBHRB 0x7c00035c #define PPC_INST_COPY 0x7c20060c #define PPC_INST_CP_ABORT 0x7c00068c +#define PPC_INST_DARN 0x7c0005e6 #define PPC_INST_DCBA 0x7c0005ec #define PPC_INST_DCBA_MASK 0xfc0007fe #define PPC_INST_DCBAL 0x7c2005ec @@ -204,6 +205,8 @@ #define PPC_INST_ISEL_MASK 0xfc00003e #define PPC_INST_LDARX 0x7c0000a8 #define PPC_INST_STDCX 0x7c0001ad +#define PPC_INST_LQARX 0x7c000228 +#define PPC_INST_STQCX 0x7c00016d #define PPC_INST_LSWI 0x7c0004aa #define PPC_INST_LSWX 0x7c00042a #define PPC_INST_LWARX 0x7c000028 @@ -261,7 +264,7 @@ #define PPC_INST_TLBSRX_DOT 0x7c0006a5 #define PPC_INST_VPMSUMW 0x10000488 #define PPC_INST_VPMSUMD 0x100004c8 -#define PPC_INST_XXLOR 0xf0000510 +#define PPC_INST_XXLOR 0xf0000490 #define PPC_INST_XXSWAPD 0xf0000250 #define PPC_INST_XVCPSGNDP 0xf0000780 #define PPC_INST_TRECHKPT 0x7c0007dd @@ -395,16 +398,25 @@ #define PPC_CP_ABORT stringify_in_c(.long PPC_INST_CP_ABORT) #define PPC_COPY(a, b) stringify_in_c(.long PPC_INST_COPY | \ ___PPC_RA(a) | ___PPC_RB(b)) +#define PPC_DARN(t, l) stringify_in_c(.long PPC_INST_DARN | \ + ___PPC_RT(t) | \ + (((l) & 0x3) << 16)) #define PPC_DCBAL(a, b) stringify_in_c(.long PPC_INST_DCBAL | \ __PPC_RA(a) | __PPC_RB(b)) #define PPC_DCBZL(a, b) stringify_in_c(.long PPC_INST_DCBZL | \ __PPC_RA(a) | __PPC_RB(b)) +#define PPC_LQARX(t, a, b, eh) stringify_in_c(.long PPC_INST_LQARX | \ + ___PPC_RT(t) | ___PPC_RA(a) | \ + ___PPC_RB(b) | __PPC_EH(eh)) #define PPC_LDARX(t, a, b, eh) stringify_in_c(.long PPC_INST_LDARX | \ ___PPC_RT(t) | ___PPC_RA(a) | \ ___PPC_RB(b) | __PPC_EH(eh)) #define PPC_LWARX(t, a, b, eh) stringify_in_c(.long PPC_INST_LWARX | \ ___PPC_RT(t) | ___PPC_RA(a) | \ ___PPC_RB(b) | __PPC_EH(eh)) +#define PPC_STQCX(t, a, b) stringify_in_c(.long PPC_INST_STQCX | \ + ___PPC_RT(t) | ___PPC_RA(a) | \ + ___PPC_RB(b)) #define PPC_MSGSND(b) stringify_in_c(.long PPC_INST_MSGSND | \ ___PPC_RB(b)) #define PPC_MSGSYNC stringify_in_c(.long PPC_INST_MSGSYNC) @@ -414,6 +426,8 @@ ___PPC_RB(b)) #define PPC_MSGCLRP(b) stringify_in_c(.long PPC_INST_MSGCLRP | \ ___PPC_RB(b)) +#define PPC_PASTE(a, b) stringify_in_c(.long PPC_INST_PASTE | \ + ___PPC_RA(a) | ___PPC_RB(b)) #define PPC_POPCNTB(a, s) stringify_in_c(.long PPC_INST_POPCNTB | \ __PPC_RA(a) | __PPC_RS(s)) #define PPC_POPCNTD(a, s) stringify_in_c(.long PPC_INST_POPCNTD | \ diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h index 6baeeb9acd0d..36f3e41c9fbe 100644 --- a/arch/powerpc/include/asm/ppc_asm.h +++ b/arch/powerpc/include/asm/ppc_asm.h @@ -378,10 +378,16 @@ BEGIN_FTR_SECTION_NESTED(96); \ cmpwi dest,0; \ beq- 90b; \ END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96) -#elif defined(CONFIG_8xx) -#define MFTB(dest) mftb dest #else -#define MFTB(dest) mfspr dest, SPRN_TBRL +#define MFTB(dest) MFTBL(dest) +#endif + +#ifdef CONFIG_PPC_8xx +#define MFTBL(dest) mftb dest +#define MFTBU(dest) mftbu dest +#else +#define MFTBL(dest) mfspr dest, SPRN_TBRL +#define MFTBU(dest) mfspr dest, SPRN_TBRU #endif #ifndef CONFIG_SMP @@ -411,7 +417,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601) * and they must be used. */ -#if !defined(CONFIG_4xx) && !defined(CONFIG_8xx) +#if !defined(CONFIG_4xx) && !defined(CONFIG_PPC_8xx) #define tlbia \ li r4,1024; \ mtctr r4; \ @@ -439,7 +445,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601) .machine push ; \ .machine "power4" ; \ lis scratch,0x60000000@h; \ - dcbt r0,scratch,0b01010; \ + dcbt 0,scratch,0b01010; \ .machine pop /* diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h index 35c00d7a0cf8..825bd5998701 100644 --- a/arch/powerpc/include/asm/prom.h +++ b/arch/powerpc/include/asm/prom.h @@ -159,7 +159,10 @@ struct of_drconf_cell { #define OV5_PFO_HW_842 0x1140 /* PFO Compression Accelerator */ #define OV5_PFO_HW_ENCR 0x1120 /* PFO Encryption Accelerator */ #define OV5_SUB_PROCESSORS 0x1501 /* 1,2,or 4 Sub-Processors supported */ -#define OV5_XIVE_EXPLOIT 0x1701 /* XIVE exploitation supported */ +#define OV5_XIVE_SUPPORT 0x17C0 /* XIVE Exploitation Support Mask */ +#define OV5_XIVE_LEGACY 0x1700 /* XIVE legacy mode Only */ +#define OV5_XIVE_EXPLOIT 0x1740 /* XIVE exploitation mode Only */ +#define OV5_XIVE_EITHER 0x1780 /* XIVE legacy or exploitation mode */ /* MMU Base Architecture */ #define OV5_MMU_SUPPORT 0x18C0 /* MMU Mode Support Mask */ #define OV5_MMU_HASH 0x1800 /* Hash MMU Only */ diff --git a/arch/powerpc/include/asm/pte-walk.h b/arch/powerpc/include/asm/pte-walk.h new file mode 100644 index 000000000000..2d633e9d686c --- /dev/null +++ b/arch/powerpc/include/asm/pte-walk.h @@ -0,0 +1,35 @@ +#ifndef _ASM_POWERPC_PTE_WALK_H +#define _ASM_POWERPC_PTE_WALK_H + +#include <linux/sched.h> + +/* Don't use this directly */ +extern pte_t *__find_linux_pte(pgd_t *pgdir, unsigned long ea, + bool *is_thp, unsigned *hshift); + +static inline pte_t *find_linux_pte(pgd_t *pgdir, unsigned long ea, + bool *is_thp, unsigned *hshift) +{ + VM_WARN(!arch_irqs_disabled(), "%s called with irq enabled\n", __func__); + return __find_linux_pte(pgdir, ea, is_thp, hshift); +} + +static inline pte_t *find_init_mm_pte(unsigned long ea, unsigned *hshift) +{ + pgd_t *pgdir = init_mm.pgd; + return __find_linux_pte(pgdir, ea, NULL, hshift); +} +/* + * This is what we should always use. Any other lockless page table lookup needs + * careful audit against THP split. + */ +static inline pte_t *find_current_mm_pte(pgd_t *pgdir, unsigned long ea, + bool *is_thp, unsigned *hshift) +{ + VM_WARN(!arch_irqs_disabled(), "%s called with irq enabled\n", __func__); + VM_WARN(pgdir != current->mm->pgd, + "%s lock less page table lookup called on wrong mm\n", __func__); + return __find_linux_pte(pgdir, ea, is_thp, hshift); +} + +#endif /* _ASM_POWERPC_PTE_WALK_H */ diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index a3b6575c7842..f92eaf7a4c0d 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -22,9 +22,9 @@ #include <asm/reg_fsl_emb.h> #endif -#ifdef CONFIG_8xx +#ifdef CONFIG_PPC_8xx #include <asm/reg_8xx.h> -#endif /* CONFIG_8xx */ +#endif /* CONFIG_PPC_8xx */ #define MSR_SF_LG 63 /* Enable 64 bit mode */ #define MSR_ISF_LG 61 /* Interrupt 64b mode valid on 630 */ @@ -135,7 +135,7 @@ #define MSR_KERNEL (MSR_ | MSR_64BIT) #define MSR_USER32 (MSR_ | MSR_PR | MSR_EE) #define MSR_USER64 (MSR_USER32 | MSR_64BIT) -#elif defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_8xx) +#elif defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_PPC_8xx) /* Default MSR for kernel mode. */ #define MSR_KERNEL (MSR_ME|MSR_RI|MSR_IR|MSR_DR) #define MSR_USER (MSR_KERNEL|MSR_PR|MSR_EE) @@ -272,16 +272,65 @@ #define SPRN_DAR 0x013 /* Data Address Register */ #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ -#define DSISR_NOHPTE 0x40000000 /* no translation found */ -#define DSISR_PROTFAULT 0x08000000 /* protection fault */ -#define DSISR_BADACCESS 0x04000000 /* bad access to CI or G */ -#define DSISR_ISSTORE 0x02000000 /* access was a store */ -#define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */ -#define DSISR_NOSEGMENT 0x00200000 /* SLB miss */ -#define DSISR_KEYFAULT 0x00200000 /* Key fault */ -#define DSISR_UNSUPP_MMU 0x00080000 /* Unsupported MMU config */ -#define DSISR_SET_RC 0x00040000 /* Failed setting of R/C bits */ -#define DSISR_PGDIRFAULT 0x00020000 /* Fault on page directory */ +#define DSISR_BAD_DIRECT_ST 0x80000000 /* Obsolete: Direct store error */ +#define DSISR_NOHPTE 0x40000000 /* no translation found */ +#define DSISR_ATTR_CONFLICT 0x20000000 /* P9: Process vs. Partition attr */ +#define DSISR_NOEXEC_OR_G 0x10000000 /* Alias of SRR1 bit, see below */ +#define DSISR_PROTFAULT 0x08000000 /* protection fault */ +#define DSISR_BADACCESS 0x04000000 /* bad access to CI or G */ +#define DSISR_ISSTORE 0x02000000 /* access was a store */ +#define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */ +#define DSISR_NOSEGMENT 0x00200000 /* STAB miss (unsupported) */ +#define DSISR_KEYFAULT 0x00200000 /* Storage Key fault */ +#define DSISR_BAD_EXT_CTRL 0x00100000 /* Obsolete: External ctrl error */ +#define DSISR_UNSUPP_MMU 0x00080000 /* P9: Unsupported MMU config */ +#define DSISR_SET_RC 0x00040000 /* P9: Failed setting of R/C bits */ +#define DSISR_PRTABLE_FAULT 0x00020000 /* P9: Fault on process table */ +#define DSISR_ICSWX_NO_CT 0x00004000 /* P7: icswx unavailable cp type */ +#define DSISR_BAD_COPYPASTE 0x00000008 /* P9: Copy/Paste on wrong memtype */ +#define DSISR_BAD_AMO 0x00000004 /* P9: Incorrect AMO opcode */ +#define DSISR_BAD_CI_LDST 0x00000002 /* P8: Bad HV CI load/store */ + +/* + * DSISR_NOEXEC_OR_G doesn't actually exist. This bit is always + * 0 on DSIs. However, on ISIs, the corresponding bit in SRR1 + * indicates an attempt at executing from a no-execute PTE + * or segment or from a guarded page. + * + * We add a definition here for completeness as we alias + * DSISR and SRR1 in do_page_fault. + */ + +/* + * DSISR bits that are treated as a fault. Any bit set + * here will skip hash_page, and cause do_page_fault to + * trigger a SIGBUS or SIGSEGV: + */ +#define DSISR_BAD_FAULT_32S (DSISR_BAD_DIRECT_ST | \ + DSISR_BADACCESS | \ + DSISR_BAD_EXT_CTRL) +#define DSISR_BAD_FAULT_64S (DSISR_BAD_FAULT_32S | \ + DSISR_ATTR_CONFLICT | \ + DSISR_KEYFAULT | \ + DSISR_UNSUPP_MMU | \ + DSISR_PRTABLE_FAULT | \ + DSISR_ICSWX_NO_CT | \ + DSISR_BAD_COPYPASTE | \ + DSISR_BAD_AMO | \ + DSISR_BAD_CI_LDST) +/* + * These bits are equivalent in SRR1 and DSISR for 0x400 + * instruction access interrupts on Book3S + */ +#define DSISR_SRR1_MATCH_32S (DSISR_NOHPTE | \ + DSISR_NOEXEC_OR_G | \ + DSISR_PROTFAULT) +#define DSISR_SRR1_MATCH_64S (DSISR_SRR1_MATCH_32S | \ + DSISR_KEYFAULT | \ + DSISR_UNSUPP_MMU | \ + DSISR_SET_RC | \ + DSISR_PRTABLE_FAULT) + #define SPRN_TBRL 0x10C /* Time Base Read Lower Register (user, R/O) */ #define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */ #define SPRN_CIR 0x11B /* Chip Information Register (hyper, R/0) */ @@ -307,6 +356,7 @@ #define SPRN_PMSR 0x355 /* Power Management Status Reg */ #define SPRN_PMMAR 0x356 /* Power Management Memory Activity Register */ #define SPRN_PSSCR 0x357 /* Processor Stop Status and Control Register (ISA 3.0) */ +#define SPRN_PSSCR_PR 0x337 /* PSSCR ISA 3.0, privileged mode access */ #define SPRN_PMCR 0x374 /* Power Management Control Register */ /* HFSCR and FSCR bit numbers are the same */ @@ -675,6 +725,7 @@ * may not be recoverable */ #define SRR1_WS_DEEPER 0x00020000 /* Some resources not maintained */ #define SRR1_WS_DEEP 0x00010000 /* All resources maintained */ +#define SRR1_PROGTM 0x00200000 /* TM Bad Thing */ #define SRR1_PROGFPE 0x00100000 /* Floating Point Enabled */ #define SRR1_PROGILL 0x00080000 /* Illegal instruction */ #define SRR1_PROGPRIV 0x00040000 /* Privileged instruction */ @@ -1114,7 +1165,7 @@ #endif #endif -#ifdef CONFIG_8xx +#ifdef CONFIG_PPC_8xx #define SPRN_SPRG_SCRATCH0 SPRN_SPRG0 #define SPRN_SPRG_SCRATCH1 SPRN_SPRG1 #define SPRN_SPRG_SCRATCH2 SPRN_SPRG2 @@ -1197,10 +1248,8 @@ * differentiated by the version number in the Communication Processor * Module (CPM). */ -#define PVR_821 0x00500000 -#define PVR_823 PVR_821 -#define PVR_850 PVR_821 -#define PVR_860 PVR_821 +#define PVR_8xx 0x00500000 + #define PVR_8240 0x00810100 #define PVR_8245 0x80811014 #define PVR_8260 PVR_8240 @@ -1295,12 +1344,12 @@ static inline void msr_check_and_clear(unsigned long bits) ".section __ftr_fixup,\"a\"\n" \ ".align 3\n" \ "98:\n" \ - " .llong %1\n" \ - " .llong %1\n" \ - " .llong 97b-98b\n" \ - " .llong 99b-98b\n" \ - " .llong 0\n" \ - " .llong 0\n" \ + " .8byte %1\n" \ + " .8byte %1\n" \ + " .8byte 97b-98b\n" \ + " .8byte 99b-98b\n" \ + " .8byte 0\n" \ + " .8byte 0\n" \ ".previous" \ : "=r" (rval) \ : "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL) : "cr0"); \ @@ -1313,7 +1362,7 @@ static inline void msr_check_and_clear(unsigned long bits) #else /* __powerpc64__ */ -#if defined(CONFIG_8xx) +#if defined(CONFIG_PPC_8xx) #define mftbl() ({unsigned long rval; \ asm volatile("mftbl %0" : "=r" (rval)); rval;}) #define mftbu() ({unsigned long rval; \ diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h index 737e012ef56e..eb2a33d5df26 100644 --- a/arch/powerpc/include/asm/reg_booke.h +++ b/arch/powerpc/include/asm/reg_booke.h @@ -221,10 +221,7 @@ #define SPRN_CSRR0 SPRN_SRR2 /* Critical Save and Restore Register 0 */ #define SPRN_CSRR1 SPRN_SRR3 /* Critical Save and Restore Register 1 */ #endif - -#ifdef CONFIG_PPC_ICSWX #define SPRN_HACOP 0x15F /* Hypervisor Available Coprocessor Register */ -#endif /* Bit definitions for CCR1. */ #define CCR1_DPC 0x00000100 /* Disable L1 I-Cache/D-Cache parity checking */ diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h index 654d64c9f3ac..3a3fb0ca68f5 100644 --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -23,7 +23,6 @@ extern void reloc_got2(unsigned long); void check_for_initrd(void); void initmem_init(void); -void setup_panic(void); #define ARCH_PANIC_TIMEOUT 180 #ifdef CONFIG_PPC_PSERIES diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 8ea98504f900..fac963e10d39 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -97,6 +97,7 @@ static inline void set_hard_smp_processor_id(int cpu, int phys) #endif DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_map); +DECLARE_PER_CPU(cpumask_var_t, cpu_l2_cache_map); DECLARE_PER_CPU(cpumask_var_t, cpu_core_map); static inline struct cpumask *cpu_sibling_mask(int cpu) @@ -109,6 +110,11 @@ static inline struct cpumask *cpu_core_mask(int cpu) return per_cpu(cpu_core_map, cpu); } +static inline struct cpumask *cpu_l2_cache_mask(int cpu) +{ + return per_cpu(cpu_l2_cache_map, cpu); +} + extern int cpu_to_core_id(int cpu); /* Since OpenPIC has only 4 IPIs, we use slightly different message numbers. diff --git a/arch/powerpc/include/asm/sstep.h b/arch/powerpc/include/asm/sstep.h index d3a42cc45a82..ab9d849644d0 100644 --- a/arch/powerpc/include/asm/sstep.h +++ b/arch/powerpc/include/asm/sstep.h @@ -23,12 +23,9 @@ struct pt_regs; #define IS_RFID(instr) (((instr) & 0xfc0007fe) == 0x4c000024) #define IS_RFI(instr) (((instr) & 0xfc0007fe) == 0x4c000064) -/* Emulate instructions that cause a transfer of control. */ -extern int emulate_step(struct pt_regs *regs, unsigned int instr); - enum instruction_type { COMPUTE, /* arith/logical/CR op, etc. */ - LOAD, + LOAD, /* load and store types need to be contiguous */ LOAD_MULTI, LOAD_FP, LOAD_VMX, @@ -55,10 +52,31 @@ enum instruction_type { #define INSTR_TYPE_MASK 0x1f +#define OP_IS_LOAD_STORE(type) (LOAD <= (type) && (type) <= STCX) + +/* Compute flags, ORed in with type */ +#define SETREG 0x20 +#define SETCC 0x40 +#define SETXER 0x80 + +/* Branch flags, ORed in with type */ +#define SETLK 0x20 +#define BRTAKEN 0x40 +#define DECCTR 0x80 + /* Load/store flags, ORed in with type */ #define SIGNEXT 0x20 #define UPDATE 0x40 /* matches bit in opcode 31 instructions */ #define BYTEREV 0x80 +#define FPCONV 0x100 + +/* Barrier type field, ORed in with type */ +#define BARRIER_MASK 0xe0 +#define BARRIER_SYNC 0x00 +#define BARRIER_ISYNC 0x20 +#define BARRIER_EIEIO 0x40 +#define BARRIER_LWSYNC 0x60 +#define BARRIER_PTESYNC 0x80 /* Cacheop values, ORed in with type */ #define CACHEOP_MASK 0x700 @@ -67,10 +85,17 @@ enum instruction_type { #define DCBTST 0x200 #define DCBT 0x300 #define ICBI 0x400 +#define DCBZ 0x500 + +/* VSX flags values */ +#define VSX_FPCONV 1 /* do floating point SP/DP conversion */ +#define VSX_SPLAT 2 /* store loaded value into all elements */ +#define VSX_LDLEFT 4 /* load VSX register from left */ +#define VSX_CHECK_VEC 8 /* check MSR_VEC not MSR_VSX for reg >= 32 */ /* Size field in type word */ -#define SIZE(n) ((n) << 8) -#define GETSIZE(w) ((w) >> 8) +#define SIZE(n) ((n) << 12) +#define GETSIZE(w) ((w) >> 12) #define MKOP(t, f, s) ((t) | (f) | SIZE(s)) @@ -83,7 +108,63 @@ struct instruction_op { int update_reg; /* For MFSPR */ int spr; + u32 ccval; + u32 xerval; + u8 element_size; /* for VSX/VMX loads/stores */ + u8 vsx_flags; +}; + +union vsx_reg { + u8 b[16]; + u16 h[8]; + u32 w[4]; + unsigned long d[2]; + float fp[4]; + double dp[2]; + __vector128 v; }; -extern int analyse_instr(struct instruction_op *op, struct pt_regs *regs, +/* + * Decode an instruction, and return information about it in *op + * without changing *regs. + * + * Return value is 1 if the instruction can be emulated just by + * updating *regs with the information in *op, -1 if we need the + * GPRs but *regs doesn't contain the full register set, or 0 + * otherwise. + */ +extern int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, unsigned int instr); + +/* + * Emulate an instruction that can be executed just by updating + * fields in *regs. + */ +void emulate_update_regs(struct pt_regs *reg, struct instruction_op *op); + +/* + * Emulate instructions that cause a transfer of control, + * arithmetic/logical instructions, loads and stores, + * cache operations and barriers. + * + * Returns 1 if the instruction was emulated successfully, + * 0 if it could not be emulated, or -1 for an instruction that + * should not be emulated (rfid, mtmsrd clearing MSR_RI, etc.). + */ +extern int emulate_step(struct pt_regs *regs, unsigned int instr); + +/* + * Emulate a load or store instruction by reading/writing the + * memory of the current process. FP/VMX/VSX registers are assumed + * to hold live values if the appropriate enable bit in regs->msr is + * set; otherwise this will use the saved values in the thread struct + * for user-mode accesses. + */ +extern int emulate_loadstore(struct pt_regs *regs, struct instruction_op *op); + +extern void emulate_vsx_load(struct instruction_op *op, union vsx_reg *reg, + const void *mem, bool cross_endian); +extern void emulate_vsx_store(struct instruction_op *op, + const union vsx_reg *reg, void *mem, + bool cross_endian); +extern int emulate_dcbz(unsigned long ea, struct pt_regs *regs); diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h index da3cdffca440..cc9addefb51c 100644 --- a/arch/powerpc/include/asm/string.h +++ b/arch/powerpc/include/asm/string.h @@ -10,6 +10,7 @@ #define __HAVE_ARCH_MEMMOVE #define __HAVE_ARCH_MEMCMP #define __HAVE_ARCH_MEMCHR +#define __HAVE_ARCH_MEMSET16 extern char * strcpy(char *,const char *); extern char * strncpy(char *,const char *, __kernel_size_t); @@ -23,6 +24,31 @@ extern void * memmove(void *,const void *,__kernel_size_t); extern int memcmp(const void *,const void *,__kernel_size_t); extern void * memchr(const void *,int,__kernel_size_t); +#ifdef CONFIG_PPC64 +#define __HAVE_ARCH_MEMSET32 +#define __HAVE_ARCH_MEMSET64 + +extern void *__memset16(uint16_t *, uint16_t v, __kernel_size_t); +extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t); +extern void *__memset64(uint64_t *, uint64_t v, __kernel_size_t); + +static inline void *memset16(uint16_t *p, uint16_t v, __kernel_size_t n) +{ + return __memset16(p, v, n * 2); +} + +static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n) +{ + return __memset32(p, v, n * 4); +} + +static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n) +{ + return __memset64(p, v, n * 8); +} +#else +extern void *memset16(uint16_t *, uint16_t, __kernel_size_t); +#endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_STRING_H */ diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h index 2cf846edb3fc..cb61eae5b7ed 100644 --- a/arch/powerpc/include/asm/timex.h +++ b/arch/powerpc/include/asm/timex.h @@ -29,7 +29,7 @@ static inline cycles_t get_cycles(void) ret = 0; __asm__ __volatile__( -#ifdef CONFIG_8xx +#ifdef CONFIG_PPC_8xx "97: mftb %0\n" #else "97: mfspr %0, %2\n" @@ -45,11 +45,7 @@ static inline cycles_t get_cycles(void) " .long 0\n" " .long 0\n" ".previous" -#ifdef CONFIG_8xx - : "=r" (ret) : "i" (CPU_FTR_601)); -#else : "=r" (ret) : "i" (CPU_FTR_601), "i" (SPRN_TBRL)); -#endif return ret; #endif } diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h index 609557569f65..a7eabff27a0f 100644 --- a/arch/powerpc/include/asm/tlb.h +++ b/arch/powerpc/include/asm/tlb.h @@ -69,13 +69,22 @@ static inline int mm_is_core_local(struct mm_struct *mm) topology_sibling_cpumask(smp_processor_id())); } +#ifdef CONFIG_PPC_BOOK3S_64 +static inline int mm_is_thread_local(struct mm_struct *mm) +{ + if (atomic_read(&mm->context.active_cpus) > 1) + return false; + return cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm)); +} +#else /* CONFIG_PPC_BOOK3S_64 */ static inline int mm_is_thread_local(struct mm_struct *mm) { return cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())); } +#endif /* !CONFIG_PPC_BOOK3S_64 */ -#else +#else /* CONFIG_SMP */ static inline int mm_is_core_local(struct mm_struct *mm) { return 1; diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index dc4e15937ccf..2d84bca8d053 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -16,8 +16,6 @@ struct device_node; #include <asm/mmzone.h> -#define parent_node(node) (node) - #define cpumask_of_node(node) ((node) == -1 ? \ cpu_all_mask : \ node_to_cpumask_map[node]) diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h new file mode 100644 index 000000000000..fd5963acd658 --- /dev/null +++ b/arch/powerpc/include/asm/vas.h @@ -0,0 +1,159 @@ +/* + * Copyright 2016-17 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. + */ + +#ifndef _ASM_POWERPC_VAS_H +#define _ASM_POWERPC_VAS_H + +/* + * Min and max FIFO sizes are based on Version 1.05 Section 3.1.4.25 + * (Local FIFO Size Register) of the VAS workbook. + */ +#define VAS_RX_FIFO_SIZE_MIN (1 << 10) /* 1KB */ +#define VAS_RX_FIFO_SIZE_MAX (8 << 20) /* 8MB */ + +/* + * Threshold Control Mode: Have paste operation fail if the number of + * requests in receive FIFO exceeds a threshold. + * + * NOTE: No special error code yet if paste is rejected because of these + * limits. So users can't distinguish between this and other errors. + */ +#define VAS_THRESH_DISABLED 0 +#define VAS_THRESH_FIFO_GT_HALF_FULL 1 +#define VAS_THRESH_FIFO_GT_QTR_FULL 2 +#define VAS_THRESH_FIFO_GT_EIGHTH_FULL 3 + +/* + * Get/Set bit fields + */ +#define GET_FIELD(m, v) (((v) & (m)) >> MASK_LSH(m)) +#define MASK_LSH(m) (__builtin_ffsl(m) - 1) +#define SET_FIELD(m, v, val) \ + (((v) & ~(m)) | ((((typeof(v))(val)) << MASK_LSH(m)) & (m))) + +/* + * Co-processor Engine type. + */ +enum vas_cop_type { + VAS_COP_TYPE_FAULT, + VAS_COP_TYPE_842, + VAS_COP_TYPE_842_HIPRI, + VAS_COP_TYPE_GZIP, + VAS_COP_TYPE_GZIP_HIPRI, + VAS_COP_TYPE_FTW, + VAS_COP_TYPE_MAX, +}; + +/* + * Receive window attributes specified by the (in-kernel) owner of window. + */ +struct vas_rx_win_attr { + void *rx_fifo; + int rx_fifo_size; + int wcreds_max; + + bool pin_win; + bool rej_no_credit; + bool tx_wcred_mode; + bool rx_wcred_mode; + bool tx_win_ord_mode; + bool rx_win_ord_mode; + bool data_stamp; + bool nx_win; + bool fault_win; + bool user_win; + bool notify_disable; + bool intr_disable; + bool notify_early; + + int lnotify_lpid; + int lnotify_pid; + int lnotify_tid; + u32 pswid; + + int tc_mode; +}; + +/* + * Window attributes specified by the in-kernel owner of a send window. + */ +struct vas_tx_win_attr { + enum vas_cop_type cop; + int wcreds_max; + int lpid; + int pidr; /* hardware PID (from SPRN_PID) */ + int pid; /* linux process id */ + int pswid; + int rsvd_txbuf_count; + int tc_mode; + + bool user_win; + bool pin_win; + bool rej_no_credit; + bool rsvd_txbuf_enable; + bool tx_wcred_mode; + bool rx_wcred_mode; + bool tx_win_ord_mode; + bool rx_win_ord_mode; +}; + +/* + * Helper to initialize receive window attributes to defaults for an + * NX window. + */ +void vas_init_rx_win_attr(struct vas_rx_win_attr *rxattr, enum vas_cop_type cop); + +/* + * Open a VAS receive window for the instance of VAS identified by @vasid + * Use @attr to initialize the attributes of the window. + * + * Return a handle to the window or ERR_PTR() on error. + */ +struct vas_window *vas_rx_win_open(int vasid, enum vas_cop_type cop, + struct vas_rx_win_attr *attr); + +/* + * Helper to initialize send window attributes to defaults for an NX window. + */ +extern void vas_init_tx_win_attr(struct vas_tx_win_attr *txattr, + enum vas_cop_type cop); + +/* + * Open a VAS send window for the instance of VAS identified by @vasid + * and the co-processor type @cop. Use @attr to initialize attributes + * of the window. + * + * Note: The instance of VAS must already have an open receive window for + * the coprocessor type @cop. + * + * Return a handle to the send window or ERR_PTR() on error. + */ +struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop, + struct vas_tx_win_attr *attr); + +/* + * Close the send or receive window identified by @win. For receive windows + * return -EAGAIN if there are active send windows attached to this receive + * window. + */ +int vas_win_close(struct vas_window *win); + +/* + * Copy the co-processor request block (CRB) @crb into the local L2 cache. + */ +int vas_copy_crb(void *crb, int offset); + +/* + * Paste a previously copied CRB (see vas_copy_crb()) from the L2 cache to + * the hardware address associated with the window @win. @re is expected/ + * assumed to be true for NX windows. + */ +int vas_paste_crb(struct vas_window *win, int offset, bool re); + +#endif /* __ASM_POWERPC_VAS_H */ diff --git a/arch/powerpc/include/asm/xive.h b/arch/powerpc/include/asm/xive.h index c23ff4389ca2..371fbebf1ec9 100644 --- a/arch/powerpc/include/asm/xive.h +++ b/arch/powerpc/include/asm/xive.h @@ -45,6 +45,7 @@ struct xive_irq_data { void __iomem *trig_mmio; u32 esb_shift; int src_chip; + u32 hw_irq; /* Setup/used by frontend */ int target; @@ -55,6 +56,7 @@ struct xive_irq_data { #define XIVE_IRQ_FLAG_SHIFT_BUG 0x04 #define XIVE_IRQ_FLAG_MASK_FW 0x08 #define XIVE_IRQ_FLAG_EOI_FW 0x10 +#define XIVE_IRQ_FLAG_H_INT_ESB 0x20 #define XIVE_INVALID_CHIP_ID -1 @@ -110,11 +112,13 @@ extern bool __xive_enabled; static inline bool xive_enabled(void) { return __xive_enabled; } +extern bool xive_spapr_init(void); extern bool xive_native_init(void); extern void xive_smp_probe(void); extern int xive_smp_prepare_cpu(unsigned int cpu); extern void xive_smp_setup_cpu(void); extern void xive_smp_disable_cpu(void); +extern void xive_teardown_cpu(void); extern void xive_kexec_teardown_cpu(int secondary); extern void xive_shutdown(void); extern void xive_flush_interrupt(void); @@ -147,6 +151,7 @@ extern int xive_native_get_vp_info(u32 vp_id, u32 *out_cam_id, u32 *out_chip_id) static inline bool xive_enabled(void) { return false; } +static inline bool xive_spapr_init(void) { return false; } static inline bool xive_native_init(void) { return false; } static inline void xive_smp_probe(void) { } extern inline int xive_smp_prepare_cpu(unsigned int cpu) { return -EINVAL; } |