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-rw-r--r--arch/powerpc/include/asm/atomic.h24
-rw-r--r--arch/powerpc/include/asm/book3s/64/hash-4k.h6
-rw-r--r--arch/powerpc/include/asm/book3s/64/hash-64k.h5
-rw-r--r--arch/powerpc/include/asm/book3s/64/hash.h5
-rw-r--r--arch/powerpc/include/asm/book3s/64/kexec.h5
-rw-r--r--arch/powerpc/include/asm/book3s/64/kup.h1
-rw-r--r--arch/powerpc/include/asm/bugs.h15
-rw-r--r--arch/powerpc/include/asm/cache.h4
-rw-r--r--arch/powerpc/include/asm/cputable.h4
-rw-r--r--arch/powerpc/include/asm/elf.h6
-rw-r--r--arch/powerpc/include/asm/irq.h7
-rw-r--r--arch/powerpc/include/asm/kvm_ppc.h4
-rw-r--r--arch/powerpc/include/asm/mpc52xx.h41
-rw-r--r--arch/powerpc/include/asm/nmi.h12
-rw-r--r--arch/powerpc/include/asm/opal.h3
-rw-r--r--arch/powerpc/include/asm/paca.h1
-rw-r--r--arch/powerpc/include/asm/page_32.h4
-rw-r--r--arch/powerpc/include/asm/pgtable.h3
-rw-r--r--arch/powerpc/include/asm/ppc-opcode.h1
-rw-r--r--arch/powerpc/include/asm/ppc_asm.h14
-rw-r--r--arch/powerpc/include/asm/processor.h1
-rw-r--r--arch/powerpc/include/asm/ptrace.h4
-rw-r--r--arch/powerpc/include/asm/reg.h10
-rw-r--r--arch/powerpc/include/asm/simple_spinlock.h2
-rw-r--r--arch/powerpc/include/asm/thread_info.h6
-rw-r--r--arch/powerpc/include/uapi/asm/elf.h2
26 files changed, 72 insertions, 118 deletions
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index 47228b177478..5bf6a4d49268 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -126,18 +126,6 @@ ATOMIC_OPS(xor, xor, "", K)
#undef ATOMIC_OP_RETURN_RELAXED
#undef ATOMIC_OP
-#define arch_atomic_cmpxchg(v, o, n) \
- (arch_cmpxchg(&((v)->counter), (o), (n)))
-#define arch_atomic_cmpxchg_relaxed(v, o, n) \
- arch_cmpxchg_relaxed(&((v)->counter), (o), (n))
-#define arch_atomic_cmpxchg_acquire(v, o, n) \
- arch_cmpxchg_acquire(&((v)->counter), (o), (n))
-
-#define arch_atomic_xchg(v, new) \
- (arch_xchg(&((v)->counter), new))
-#define arch_atomic_xchg_relaxed(v, new) \
- arch_xchg_relaxed(&((v)->counter), (new))
-
/**
* atomic_fetch_add_unless - add unless the number is a given value
* @v: pointer of type atomic_t
@@ -396,18 +384,6 @@ static __inline__ s64 arch_atomic64_dec_if_positive(atomic64_t *v)
}
#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
-#define arch_atomic64_cmpxchg(v, o, n) \
- (arch_cmpxchg(&((v)->counter), (o), (n)))
-#define arch_atomic64_cmpxchg_relaxed(v, o, n) \
- arch_cmpxchg_relaxed(&((v)->counter), (o), (n))
-#define arch_atomic64_cmpxchg_acquire(v, o, n) \
- arch_cmpxchg_acquire(&((v)->counter), (o), (n))
-
-#define arch_atomic64_xchg(v, new) \
- (arch_xchg(&((v)->counter), new))
-#define arch_atomic64_xchg_relaxed(v, new) \
- arch_xchg_relaxed(&((v)->counter), (new))
-
/**
* atomic64_fetch_add_unless - add unless the number is a given value
* @v: pointer of type atomic64_t
diff --git a/arch/powerpc/include/asm/book3s/64/hash-4k.h b/arch/powerpc/include/asm/book3s/64/hash-4k.h
index b6ac4f86c87b..6472b08fa1b0 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-4k.h
@@ -136,12 +136,6 @@ static inline int hash__pmd_trans_huge(pmd_t pmd)
return 0;
}
-static inline int hash__pmd_same(pmd_t pmd_a, pmd_t pmd_b)
-{
- BUG();
- return 0;
-}
-
static inline pmd_t hash__pmd_mkhuge(pmd_t pmd)
{
BUG();
diff --git a/arch/powerpc/include/asm/book3s/64/hash-64k.h b/arch/powerpc/include/asm/book3s/64/hash-64k.h
index 338e62fbea0b..0bf6fd0bf42a 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-64k.h
@@ -263,11 +263,6 @@ static inline int hash__pmd_trans_huge(pmd_t pmd)
(_PAGE_PTE | H_PAGE_THP_HUGE));
}
-static inline int hash__pmd_same(pmd_t pmd_a, pmd_t pmd_b)
-{
- return (((pmd_raw(pmd_a) ^ pmd_raw(pmd_b)) & ~cpu_to_be64(_PAGE_HPTEFLAGS)) == 0);
-}
-
static inline pmd_t hash__pmd_mkhuge(pmd_t pmd)
{
return __pmd(pmd_val(pmd) | (_PAGE_PTE | H_PAGE_THP_HUGE));
diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index 17e7a778c856..d4a19e6547ac 100644
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -132,6 +132,11 @@ static inline int get_region_id(unsigned long ea)
return region_id;
}
+static inline int hash__pmd_same(pmd_t pmd_a, pmd_t pmd_b)
+{
+ return (((pmd_raw(pmd_a) ^ pmd_raw(pmd_b)) & ~cpu_to_be64(_PAGE_HPTEFLAGS)) == 0);
+}
+
#define hash__pmd_bad(pmd) (pmd_val(pmd) & H_PMD_BAD_BITS)
#define hash__pud_bad(pud) (pud_val(pud) & H_PUD_BAD_BITS)
static inline int hash__p4d_bad(p4d_t p4d)
diff --git a/arch/powerpc/include/asm/book3s/64/kexec.h b/arch/powerpc/include/asm/book3s/64/kexec.h
index d4b9d476ecba..df37a76c1e9f 100644
--- a/arch/powerpc/include/asm/book3s/64/kexec.h
+++ b/arch/powerpc/include/asm/book3s/64/kexec.h
@@ -21,6 +21,11 @@ static inline void reset_sprs(void)
plpar_set_ciabr(0);
}
+ if (cpu_has_feature(CPU_FTR_ARCH_31)) {
+ mtspr(SPRN_DEXCR, 0);
+ mtspr(SPRN_HASHKEYR, 0);
+ }
+
/* Do we need isync()? We are going via a kexec reset */
isync();
}
diff --git a/arch/powerpc/include/asm/book3s/64/kup.h b/arch/powerpc/include/asm/book3s/64/kup.h
index 54cf46808157..84c09e546115 100644
--- a/arch/powerpc/include/asm/book3s/64/kup.h
+++ b/arch/powerpc/include/asm/book3s/64/kup.h
@@ -194,6 +194,7 @@
#else /* !__ASSEMBLY__ */
#include <linux/jump_label.h>
+#include <linux/sched.h>
DECLARE_STATIC_KEY_FALSE(uaccess_flush_key);
diff --git a/arch/powerpc/include/asm/bugs.h b/arch/powerpc/include/asm/bugs.h
deleted file mode 100644
index 01b8f6ca4dbb..000000000000
--- a/arch/powerpc/include/asm/bugs.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-#ifndef _ASM_POWERPC_BUGS_H
-#define _ASM_POWERPC_BUGS_H
-
-/*
- */
-
-/*
- * This file is included by 'init/main.c' to check for
- * architecture-dependent bugs.
- */
-
-static inline void check_bugs(void) { }
-
-#endif /* _ASM_POWERPC_BUGS_H */
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index ae0a68a838e8..69232231d270 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -33,6 +33,10 @@
#define IFETCH_ALIGN_BYTES (1 << IFETCH_ALIGN_SHIFT)
+#ifdef CONFIG_NOT_COHERENT_CACHE
+#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
+#endif
+
#if !defined(__ASSEMBLY__)
#ifdef CONFIG_PPC64
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index 757dbded11dc..443a9d482b15 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -192,6 +192,7 @@ static inline void cpu_feature_keys_init(void) { }
#define CPU_FTR_P9_RADIX_PREFETCH_BUG LONG_ASM_CONST(0x0002000000000000)
#define CPU_FTR_ARCH_31 LONG_ASM_CONST(0x0004000000000000)
#define CPU_FTR_DAWR1 LONG_ASM_CONST(0x0008000000000000)
+#define CPU_FTR_DEXCR_NPHIE LONG_ASM_CONST(0x0010000000000000)
#ifndef __ASSEMBLY__
@@ -451,7 +452,8 @@ static inline void cpu_feature_keys_init(void) { }
CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \
CPU_FTR_ARCH_300 | CPU_FTR_ARCH_31 | \
- CPU_FTR_DAWR | CPU_FTR_DAWR1)
+ CPU_FTR_DAWR | CPU_FTR_DAWR1 | \
+ CPU_FTR_DEXCR_NPHIE)
#define CPU_FTRS_CELL (CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 79f1c480b5eb..a26ca097d032 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -12,8 +12,14 @@
/*
* This is used to ensure we don't load something for the wrong architecture.
+ * 64le only supports ELFv2 64-bit binaries (64be supports v1 and v2).
*/
+#if defined(CONFIG_PPC64) && defined(CONFIG_CPU_LITTLE_ENDIAN)
+#define elf_check_arch(x) (((x)->e_machine == ELF_ARCH) && \
+ (((x)->e_flags & 0x3) == 0x2))
+#else
#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
+#endif
#define compat_elf_check_arch(x) ((x)->e_machine == EM_PPC)
#define CORE_DUMP_USE_REGSET
diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index deadd2149426..f257cacb49a9 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -50,9 +50,14 @@ extern void *hardirq_ctx[NR_CPUS];
extern void *softirq_ctx[NR_CPUS];
void __do_IRQ(struct pt_regs *regs);
-extern void __init init_IRQ(void);
int irq_choose_cpu(const struct cpumask *mask);
+#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI)
+extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
+ bool exclude_self);
+#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
+#endif
+
#endif /* _ASM_IRQ_H */
#endif /* __KERNEL__ */
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 79a9c0bb8bba..d16d80ad2ae4 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -548,12 +548,12 @@ static inline void kvmppc_set_host_ipi(int cpu)
* pairs with the barrier in kvmppc_clear_host_ipi()
*/
smp_mb();
- paca_ptrs[cpu]->kvm_hstate.host_ipi = 1;
+ WRITE_ONCE(paca_ptrs[cpu]->kvm_hstate.host_ipi, 1);
}
static inline void kvmppc_clear_host_ipi(int cpu)
{
- paca_ptrs[cpu]->kvm_hstate.host_ipi = 0;
+ WRITE_ONCE(paca_ptrs[cpu]->kvm_hstate.host_ipi, 0);
/*
* order clearing of host_ipi flag vs. processing of IPI messages
*
diff --git a/arch/powerpc/include/asm/mpc52xx.h b/arch/powerpc/include/asm/mpc52xx.h
index 5ea16a71c2f0..01ae6c351e50 100644
--- a/arch/powerpc/include/asm/mpc52xx.h
+++ b/arch/powerpc/include/asm/mpc52xx.h
@@ -285,47 +285,6 @@ extern int mpc52xx_gpt_start_timer(struct mpc52xx_gpt_priv *gpt, u64 period,
extern u64 mpc52xx_gpt_timer_period(struct mpc52xx_gpt_priv *gpt);
extern int mpc52xx_gpt_stop_timer(struct mpc52xx_gpt_priv *gpt);
-/* mpc52xx_lpbfifo.c */
-#define MPC52XX_LPBFIFO_FLAG_READ (0)
-#define MPC52XX_LPBFIFO_FLAG_WRITE (1<<0)
-#define MPC52XX_LPBFIFO_FLAG_NO_INCREMENT (1<<1)
-#define MPC52XX_LPBFIFO_FLAG_NO_DMA (1<<2)
-#define MPC52XX_LPBFIFO_FLAG_POLL_DMA (1<<3)
-
-struct mpc52xx_lpbfifo_request {
- struct list_head list;
-
- /* localplus bus address */
- unsigned int cs;
- size_t offset;
-
- /* Memory address */
- void *data;
- phys_addr_t data_phys;
-
- /* Details of transfer */
- size_t size;
- size_t pos; /* current position of transfer */
- int flags;
- int defer_xfer_start;
-
- /* What to do when finished */
- void (*callback)(struct mpc52xx_lpbfifo_request *);
-
- void *priv; /* Driver private data */
-
- /* statistics */
- int irq_count;
- int irq_ticks;
- u8 last_byte;
- int buffer_not_done_cnt;
-};
-
-extern int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req);
-extern void mpc52xx_lpbfifo_abort(struct mpc52xx_lpbfifo_request *req);
-extern void mpc52xx_lpbfifo_poll(void);
-extern int mpc52xx_lpbfifo_start_xfer(struct mpc52xx_lpbfifo_request *req);
-
/* mpc52xx_pic.c */
extern void mpc52xx_init_irq(void);
extern unsigned int mpc52xx_get_irq(void);
diff --git a/arch/powerpc/include/asm/nmi.h b/arch/powerpc/include/asm/nmi.h
index c3c7adef74de..49a75340c3e0 100644
--- a/arch/powerpc/include/asm/nmi.h
+++ b/arch/powerpc/include/asm/nmi.h
@@ -3,18 +3,10 @@
#define _ASM_NMI_H
#ifdef CONFIG_PPC_WATCHDOG
-extern void arch_touch_nmi_watchdog(void);
long soft_nmi_interrupt(struct pt_regs *regs);
-void watchdog_nmi_set_timeout_pct(u64 pct);
+void watchdog_hardlockup_set_timeout_pct(u64 pct);
#else
-static inline void arch_touch_nmi_watchdog(void) {}
-static inline void watchdog_nmi_set_timeout_pct(u64 pct) {}
-#endif
-
-#ifdef CONFIG_NMI_IPI
-extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
- bool exclude_self);
-#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
+static inline void watchdog_hardlockup_set_timeout_pct(u64 pct) {}
#endif
extern void hv_nmi_check_nonrecoverable(struct pt_regs *regs);
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 726125a534de..a9b31cc258fc 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -112,9 +112,6 @@ int64_t opal_pci_set_pe(uint64_t phb_id, uint64_t pe_number, uint64_t bus_dev_fu
uint8_t pe_action);
int64_t opal_pci_set_peltv(uint64_t phb_id, uint32_t parent_pe, uint32_t child_pe,
uint8_t state);
-int64_t opal_pci_set_mve(uint64_t phb_id, uint32_t mve_number, uint32_t pe_number);
-int64_t opal_pci_set_mve_enable(uint64_t phb_id, uint32_t mve_number,
- uint32_t state);
int64_t opal_pci_get_xive_reissue(uint64_t phb_id, uint32_t xive_number,
uint8_t *p_bit, uint8_t *q_bit);
int64_t opal_pci_set_xive_reissue(uint64_t phb_id, uint32_t xive_number,
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index da0377f46597..cb325938766a 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -191,6 +191,7 @@ struct paca_struct {
#ifdef CONFIG_PPC_POWERNV
/* PowerNV idle fields */
/* PNV_CORE_IDLE_* bits, all siblings work on thread 0 paca */
+ unsigned long idle_lock; /* A value of 1 means acquired */
unsigned long idle_state;
union {
/* P7/P8 specific fields */
diff --git a/arch/powerpc/include/asm/page_32.h b/arch/powerpc/include/asm/page_32.h
index 56f217606327..b9ac9e3a771c 100644
--- a/arch/powerpc/include/asm/page_32.h
+++ b/arch/powerpc/include/asm/page_32.h
@@ -12,10 +12,6 @@
#define VM_DATA_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS32
-#ifdef CONFIG_NOT_COHERENT_CACHE
-#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
-#endif
-
#if defined(CONFIG_PPC_256K_PAGES) || \
(defined(CONFIG_PPC_8xx) && defined(CONFIG_PPC_16K_PAGES))
#define PTE_SHIFT (PAGE_SHIFT - PTE_T_LOG2 - 2) /* 1/4 of a page */
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 9972626ddaf6..6a88bfdaa69b 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -165,9 +165,6 @@ static inline bool is_ioremap_addr(const void *x)
return addr >= IOREMAP_BASE && addr < IOREMAP_END;
}
-
-struct seq_file;
-void arch_report_meminfo(struct seq_file *m);
#endif /* CONFIG_PPC64 */
#endif /* __ASSEMBLY__ */
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index ca5a0da7df4e..ef6972aa33b9 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -222,6 +222,7 @@
#define OP_31_XOP_STFSX 663
#define OP_31_XOP_STFSUX 695
#define OP_31_XOP_STFDX 727
+#define OP_31_XOP_HASHCHK 754
#define OP_31_XOP_STFDUX 759
#define OP_31_XOP_LHBRX 790
#define OP_31_XOP_LFIWAX 855
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 5f05a984b103..e7792aa13510 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -406,6 +406,15 @@ n:
/* offsets for stack frame layout */
#define LRSAVE 16
+/*
+ * GCC stack frames follow a different pattern on 32 vs 64. This can be used
+ * to make asm frames be consistent with C.
+ */
+#define PPC_CREATE_STACK_FRAME(size) \
+ mflr r0; \
+ std r0,16(r1); \
+ stdu r1,-(size)(r1)
+
#else /* 32-bit */
#define LOAD_REG_IMMEDIATE(reg, expr) __LOAD_REG_IMMEDIATE_32 reg, expr
@@ -422,6 +431,11 @@ n:
/* offsets for stack frame layout */
#define LRSAVE 4
+#define PPC_CREATE_STACK_FRAME(size) \
+ stwu r1,-(size)(r1); \
+ mflr r0; \
+ stw r0,(size+4)(r1)
+
#endif
/* various errata or part fixups */
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index e96c9b8c2a60..8a6754ffdc7e 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -264,6 +264,7 @@ struct thread_struct {
unsigned long mmcr3;
unsigned long sier2;
unsigned long sier3;
+ unsigned long hashkeyr;
#endif
};
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h
index 0eb90a013346..9db8b16567e2 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -180,8 +180,8 @@ void do_syscall_trace_leave(struct pt_regs *regs);
static inline void set_return_regs_changed(void)
{
#ifdef CONFIG_PPC_BOOK3S_64
- local_paca->hsrr_valid = 0;
- local_paca->srr_valid = 0;
+ WRITE_ONCE(local_paca->hsrr_valid, 0);
+ WRITE_ONCE(local_paca->srr_valid, 0);
#endif
}
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 6372e5f55ef0..bb0121222ee3 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -382,7 +382,17 @@
#define SPRN_HIOR 0x137 /* 970 Hypervisor interrupt offset */
#define SPRN_RMOR 0x138 /* Real mode offset register */
#define SPRN_HRMOR 0x139 /* Real mode offset register */
+#define SPRN_HDEXCR_RO 0x1C7 /* Hypervisor DEXCR (non-privileged, readonly) */
+#define SPRN_HASHKEYR 0x1D4 /* Non-privileged hashst/hashchk key register */
+#define SPRN_HDEXCR 0x1D7 /* Hypervisor dynamic execution control register */
+#define SPRN_DEXCR_RO 0x32C /* DEXCR (non-privileged, readonly) */
#define SPRN_ASDR 0x330 /* Access segment descriptor register */
+#define SPRN_DEXCR 0x33C /* Dynamic execution control register */
+#define DEXCR_PR_SBHE 0x80000000UL /* 0: Speculative Branch Hint Enable */
+#define DEXCR_PR_IBRTPD 0x10000000UL /* 3: Indirect Branch Recurrent Target Prediction Disable */
+#define DEXCR_PR_SRAPD 0x08000000UL /* 4: Subroutine Return Address Prediction Disable */
+#define DEXCR_PR_NPHIE 0x04000000UL /* 5: Non-Privileged Hash Instruction Enable */
+#define DEXCR_INIT DEXCR_PR_NPHIE /* Fixed DEXCR value to initialise all CPUs with */
#define SPRN_IC 0x350 /* Virtual Instruction Count */
#define SPRN_VTB 0x351 /* Virtual Time Base */
#define SPRN_LDBAR 0x352 /* LD Base Address Register */
diff --git a/arch/powerpc/include/asm/simple_spinlock.h b/arch/powerpc/include/asm/simple_spinlock.h
index 9dcc7e9993b9..4dd12dcb9ef8 100644
--- a/arch/powerpc/include/asm/simple_spinlock.h
+++ b/arch/powerpc/include/asm/simple_spinlock.h
@@ -15,6 +15,7 @@
* (the type definitions are in asm/simple_spinlock_types.h)
*/
#include <linux/irqflags.h>
+#include <linux/kcsan-checks.h>
#include <asm/paravirt.h>
#include <asm/paca.h>
#include <asm/synch.h>
@@ -126,6 +127,7 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
static inline void arch_spin_unlock(arch_spinlock_t *lock)
{
+ kcsan_mb();
__asm__ __volatile__("# arch_spin_unlock\n\t"
PPC_RELEASE_BARRIER: : :"memory");
lock->slock = 0;
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index bf5dde1a4114..bc5d39a835fe 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -183,9 +183,13 @@ static inline bool test_thread_local_flags(unsigned int flags)
#define clear_tsk_compat_task(tsk) do { } while (0)
#endif
-#if defined(CONFIG_PPC64)
+#ifdef CONFIG_PPC64
+#ifdef CONFIG_CPU_BIG_ENDIAN
#define is_elf2_task() (test_thread_flag(TIF_ELF2ABI))
#else
+#define is_elf2_task() (1)
+#endif
+#else
#define is_elf2_task() (0)
#endif
diff --git a/arch/powerpc/include/uapi/asm/elf.h b/arch/powerpc/include/uapi/asm/elf.h
index dbc4a5b8d02d..a5377f494fa3 100644
--- a/arch/powerpc/include/uapi/asm/elf.h
+++ b/arch/powerpc/include/uapi/asm/elf.h
@@ -98,6 +98,8 @@
#define ELF_NEBB 3 /* includes ebbrr, ebbhr, bescr */
#define ELF_NPMU 5 /* includes siar, sdar, sier, mmcr2, mmcr0 */
#define ELF_NPKEY 3 /* includes amr, iamr, uamor */
+#define ELF_NDEXCR 2 /* includes dexcr, hdexcr */
+#define ELF_NHASHKEYR 1 /* includes hashkeyr */
typedef unsigned long elf_greg_t64;
typedef elf_greg_t64 elf_gregset_t64[ELF_NGREG];