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-rw-r--r--arch/powerpc/include/asm/book3s/64/pgtable.h10
-rw-r--r--arch/powerpc/include/asm/book3s/64/tlbflush.h9
-rw-r--r--arch/powerpc/include/asm/ftrace.h2
-rw-r--r--arch/powerpc/include/asm/hvcall.h20
-rw-r--r--arch/powerpc/include/asm/kvm_book3s.h10
-rw-r--r--arch/powerpc/include/asm/kvm_book3s_64.h1
-rw-r--r--arch/powerpc/include/asm/linkage.h3
-rw-r--r--arch/powerpc/include/asm/mmu.h4
-rw-r--r--arch/powerpc/include/asm/mmzone.h8
-rw-r--r--arch/powerpc/include/asm/papr-sysparm.h17
-rw-r--r--arch/powerpc/include/asm/paravirt.h33
-rw-r--r--arch/powerpc/include/asm/ppc-pci.h5
-rw-r--r--arch/powerpc/include/asm/ps3.h6
-rw-r--r--arch/powerpc/include/asm/reg.h1
-rw-r--r--arch/powerpc/include/asm/reg_a2.h154
-rw-r--r--arch/powerpc/include/asm/rtas.h91
-rw-r--r--arch/powerpc/include/uapi/asm/papr-miscdev.h9
-rw-r--r--arch/powerpc/include/uapi/asm/papr-sysparm.h58
-rw-r--r--arch/powerpc/include/uapi/asm/papr-vpd.h22
19 files changed, 213 insertions, 250 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index cb77eddca54b..927d585652bc 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -17,12 +17,6 @@
#define _PAGE_EXEC 0x00001 /* execute permission */
#define _PAGE_WRITE 0x00002 /* write access allowed */
#define _PAGE_READ 0x00004 /* read access allowed */
-#define _PAGE_NA _PAGE_PRIVILEGED
-#define _PAGE_NAX _PAGE_EXEC
-#define _PAGE_RO _PAGE_READ
-#define _PAGE_ROX (_PAGE_READ | _PAGE_EXEC)
-#define _PAGE_RW (_PAGE_READ | _PAGE_WRITE)
-#define _PAGE_RWX (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC)
#define _PAGE_PRIVILEGED 0x00008 /* kernel access only */
#define _PAGE_SAO 0x00010 /* Strong access order */
#define _PAGE_NON_IDEMPOTENT 0x00020 /* non idempotent memory */
@@ -532,8 +526,8 @@ static inline bool pte_user(pte_t pte)
static inline bool pte_access_permitted(pte_t pte, bool write)
{
/*
- * _PAGE_READ is needed for any access and will be
- * cleared for PROT_NONE
+ * _PAGE_READ is needed for any access and will be cleared for
+ * PROT_NONE. Execute-only mapping via PROT_EXEC also returns false.
*/
if (!pte_present(pte) || !pte_user(pte) || !pte_read(pte))
return false;
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush.h b/arch/powerpc/include/asm/book3s/64/tlbflush.h
index 1950c1b825b4..fd642b729775 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush.h
@@ -158,11 +158,6 @@ static inline void flush_tlb_fix_spurious_fault(struct vm_area_struct *vma,
*/
}
-static inline bool __pte_protnone(unsigned long pte)
-{
- return (pte & (pgprot_val(PAGE_NONE) | _PAGE_RWX)) == pgprot_val(PAGE_NONE);
-}
-
static inline bool __pte_flags_need_flush(unsigned long oldval,
unsigned long newval)
{
@@ -179,8 +174,8 @@ static inline bool __pte_flags_need_flush(unsigned long oldval,
/*
* We do not expect kernel mappings or non-PTEs or not-present PTEs.
*/
- VM_WARN_ON_ONCE(!__pte_protnone(oldval) && oldval & _PAGE_PRIVILEGED);
- VM_WARN_ON_ONCE(!__pte_protnone(newval) && newval & _PAGE_PRIVILEGED);
+ VM_WARN_ON_ONCE(oldval & _PAGE_PRIVILEGED);
+ VM_WARN_ON_ONCE(newval & _PAGE_PRIVILEGED);
VM_WARN_ON_ONCE(!(oldval & _PAGE_PTE));
VM_WARN_ON_ONCE(!(newval & _PAGE_PTE));
VM_WARN_ON_ONCE(!(oldval & _PAGE_PRESENT));
diff --git a/arch/powerpc/include/asm/ftrace.h b/arch/powerpc/include/asm/ftrace.h
index 9e5a39b6a311..1ebd2ca97f12 100644
--- a/arch/powerpc/include/asm/ftrace.h
+++ b/arch/powerpc/include/asm/ftrace.h
@@ -25,7 +25,7 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr)
if (IS_ENABLED(CONFIG_ARCH_USING_PATCHABLE_FUNCTION_ENTRY))
addr += MCOUNT_INSN_SIZE;
- return addr;
+ return addr;
}
unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip,
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index ddb99e982917..a41e542ba94d 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -349,7 +349,16 @@
#define H_GET_ENERGY_SCALE_INFO 0x450
#define H_PKS_SIGNED_UPDATE 0x454
#define H_WATCHDOG 0x45C
-#define MAX_HCALL_OPCODE H_WATCHDOG
+#define H_GUEST_GET_CAPABILITIES 0x460
+#define H_GUEST_SET_CAPABILITIES 0x464
+#define H_GUEST_CREATE 0x470
+#define H_GUEST_CREATE_VCPU 0x474
+#define H_GUEST_GET_STATE 0x478
+#define H_GUEST_SET_STATE 0x47C
+#define H_GUEST_RUN_VCPU 0x480
+#define H_GUEST_COPY_MEMORY 0x484
+#define H_GUEST_DELETE 0x488
+#define MAX_HCALL_OPCODE H_GUEST_DELETE
/* Scope args for H_SCM_UNBIND_ALL */
#define H_UNBIND_SCOPE_ALL (0x1)
@@ -393,15 +402,6 @@
#define H_ENTER_NESTED 0xF804
#define H_TLB_INVALIDATE 0xF808
#define H_COPY_TOFROM_GUEST 0xF80C
-#define H_GUEST_GET_CAPABILITIES 0x460
-#define H_GUEST_SET_CAPABILITIES 0x464
-#define H_GUEST_CREATE 0x470
-#define H_GUEST_CREATE_VCPU 0x474
-#define H_GUEST_GET_STATE 0x478
-#define H_GUEST_SET_STATE 0x47C
-#define H_GUEST_RUN_VCPU 0x480
-#define H_GUEST_COPY_MEMORY 0x484
-#define H_GUEST_DELETE 0x488
/* Flags for H_SVM_PAGE_IN */
#define H_PAGE_IN_SHARED 0x1
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 4f527d09c92b..3e1e2a698c9e 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -302,6 +302,7 @@ void kvmhv_nested_exit(void);
void kvmhv_vm_nested_init(struct kvm *kvm);
long kvmhv_set_partition_table(struct kvm_vcpu *vcpu);
long kvmhv_copy_tofrom_guest_nested(struct kvm_vcpu *vcpu);
+void kvmhv_flush_lpid(u64 lpid);
void kvmhv_set_ptbl_entry(u64 lpid, u64 dw0, u64 dw1);
void kvmhv_release_all_nested(struct kvm *kvm);
long kvmhv_enter_nested_guest(struct kvm_vcpu *vcpu);
@@ -593,13 +594,17 @@ static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
KVMPPC_BOOK3S_VCORE_ACCESSOR(vtb, 64, KVMPPC_GSID_VTB)
-KVMPPC_BOOK3S_VCORE_ACCESSOR(tb_offset, 64, KVMPPC_GSID_TB_OFFSET)
KVMPPC_BOOK3S_VCORE_ACCESSOR_GET(arch_compat, 32, KVMPPC_GSID_LOGICAL_PVR)
KVMPPC_BOOK3S_VCORE_ACCESSOR_GET(lpcr, 64, KVMPPC_GSID_LPCR)
+KVMPPC_BOOK3S_VCORE_ACCESSOR_SET(tb_offset, 64, KVMPPC_GSID_TB_OFFSET)
+
+static inline u64 kvmppc_get_tb_offset(struct kvm_vcpu *vcpu)
+{
+ return vcpu->arch.vcore->tb_offset;
+}
static inline u64 kvmppc_get_dec_expires(struct kvm_vcpu *vcpu)
{
- WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_TB_OFFSET) < 0);
WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_DEC_EXPIRY_TB) < 0);
return vcpu->arch.dec_expires;
}
@@ -607,7 +612,6 @@ static inline u64 kvmppc_get_dec_expires(struct kvm_vcpu *vcpu)
static inline void kvmppc_set_dec_expires(struct kvm_vcpu *vcpu, u64 val)
{
vcpu->arch.dec_expires = val;
- WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_TB_OFFSET) < 0);
kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_DEC_EXPIRY_TB);
}
diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h b/arch/powerpc/include/asm/kvm_book3s_64.h
index 2477021bff54..d8729ec81ca0 100644
--- a/arch/powerpc/include/asm/kvm_book3s_64.h
+++ b/arch/powerpc/include/asm/kvm_book3s_64.h
@@ -682,6 +682,7 @@ void kvmhv_nestedv2_vcpu_free(struct kvm_vcpu *vcpu, struct kvmhv_nestedv2_io *i
int kvmhv_nestedv2_flush_vcpu(struct kvm_vcpu *vcpu, u64 time_limit);
int kvmhv_nestedv2_set_ptbl_entry(unsigned long lpid, u64 dw0, u64 dw1);
int kvmhv_nestedv2_parse_output(struct kvm_vcpu *vcpu);
+int kvmhv_nestedv2_set_vpa(struct kvm_vcpu *vcpu, unsigned long vpa);
#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
diff --git a/arch/powerpc/include/asm/linkage.h b/arch/powerpc/include/asm/linkage.h
index b88d1d2cf304..b71b9582e754 100644
--- a/arch/powerpc/include/asm/linkage.h
+++ b/arch/powerpc/include/asm/linkage.h
@@ -4,9 +4,6 @@
#include <asm/types.h>
-#define __ALIGN .align 2
-#define __ALIGN_STR ".align 2"
-
#ifdef CONFIG_PPC64_ELF_ABI_V1
#define cond_syscall(x) \
asm ("\t.weak " #x "\n\t.set " #x ", sys_ni_syscall\n" \
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 52cc25864a1b..d8b7e246a32f 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -412,5 +412,9 @@ extern void *abatron_pteptrs[2];
#include <asm/nohash/mmu.h>
#endif
+#if defined(CONFIG_FA_DUMP) || defined(CONFIG_PRESERVE_FA_DUMP)
+#define __HAVE_ARCH_RESERVED_KERNEL_PAGES
+#endif
+
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_MMU_H_ */
diff --git a/arch/powerpc/include/asm/mmzone.h b/arch/powerpc/include/asm/mmzone.h
index 4c6c6dbd182f..da827d2d0866 100644
--- a/arch/powerpc/include/asm/mmzone.h
+++ b/arch/powerpc/include/asm/mmzone.h
@@ -42,14 +42,6 @@ u64 memory_hotplug_max(void);
#else
#define memory_hotplug_max() memblock_end_of_DRAM()
#endif /* CONFIG_NUMA */
-#ifdef CONFIG_FA_DUMP
-#define __HAVE_ARCH_RESERVED_KERNEL_PAGES
-#endif
-
-#ifdef CONFIG_MEMORY_HOTPLUG
-extern int create_section_mapping(unsigned long start, unsigned long end,
- int nid, pgprot_t prot);
-#endif
#endif /* __KERNEL__ */
#endif /* _ASM_MMZONE_H_ */
diff --git a/arch/powerpc/include/asm/papr-sysparm.h b/arch/powerpc/include/asm/papr-sysparm.h
index f5fdbd8ae9db..0dbbff59101d 100644
--- a/arch/powerpc/include/asm/papr-sysparm.h
+++ b/arch/powerpc/include/asm/papr-sysparm.h
@@ -2,8 +2,10 @@
#ifndef _ASM_POWERPC_PAPR_SYSPARM_H
#define _ASM_POWERPC_PAPR_SYSPARM_H
+#include <uapi/asm/papr-sysparm.h>
+
typedef struct {
- const u32 token;
+ u32 token;
} papr_sysparm_t;
#define mk_papr_sysparm(x_) ((papr_sysparm_t){ .token = x_, })
@@ -20,11 +22,14 @@ typedef struct {
#define PAPR_SYSPARM_TLB_BLOCK_INVALIDATE_ATTRS mk_papr_sysparm(50)
#define PAPR_SYSPARM_LPAR_NAME mk_papr_sysparm(55)
-enum {
- PAPR_SYSPARM_MAX_INPUT = 1024,
- PAPR_SYSPARM_MAX_OUTPUT = 4000,
-};
-
+/**
+ * struct papr_sysparm_buf - RTAS work area layout for system parameter functions.
+ *
+ * This is the memory layout of the buffers passed to/from
+ * ibm,get-system-parameter and ibm,set-system-parameter. It is
+ * distinct from the papr_sysparm_io_block structure that is passed
+ * between user space and the kernel.
+ */
struct papr_sysparm_buf {
__be16 len;
char val[PAPR_SYSPARM_MAX_OUTPUT];
diff --git a/arch/powerpc/include/asm/paravirt.h b/arch/powerpc/include/asm/paravirt.h
index ac4279208d63..b78b82d66057 100644
--- a/arch/powerpc/include/asm/paravirt.h
+++ b/arch/powerpc/include/asm/paravirt.h
@@ -76,6 +76,17 @@ static inline bool is_vcpu_idle(int vcpu)
{
return lppaca_of(vcpu).idle;
}
+
+static inline bool vcpu_is_dispatched(int vcpu)
+{
+ /*
+ * This is the yield_count. An "odd" value (low bit on) means that
+ * the processor is yielded (either because of an OS yield or a
+ * hypervisor preempt). An even value implies that the processor is
+ * currently executing.
+ */
+ return (!(yield_count_of(vcpu) & 1));
+}
#else
static inline bool is_shared_processor(void)
{
@@ -109,6 +120,10 @@ static inline bool is_vcpu_idle(int vcpu)
{
return false;
}
+static inline bool vcpu_is_dispatched(int vcpu)
+{
+ return true;
+}
#endif
#define vcpu_is_preempted vcpu_is_preempted
@@ -134,12 +149,12 @@ static inline bool vcpu_is_preempted(int cpu)
* If the hypervisor has dispatched the target CPU on a physical
* processor, then the target CPU is definitely not preempted.
*/
- if (!(yield_count_of(cpu) & 1))
+ if (vcpu_is_dispatched(cpu))
return false;
/*
- * If the target CPU has yielded to Hypervisor but OS has not
- * requested idle then the target CPU is definitely preempted.
+ * if the target CPU is not dispatched and the guest OS
+ * has not marked the CPU idle, then it is hypervisor preempted.
*/
if (!is_vcpu_idle(cpu))
return true;
@@ -166,7 +181,7 @@ static inline bool vcpu_is_preempted(int cpu)
/*
* The PowerVM hypervisor dispatches VMs on a whole core
- * basis. So we know that a thread sibling of the local CPU
+ * basis. So we know that a thread sibling of the executing CPU
* cannot have been preempted by the hypervisor, even if it
* has called H_CONFER, which will set the yield bit.
*/
@@ -174,15 +189,17 @@ static inline bool vcpu_is_preempted(int cpu)
return false;
/*
- * If any of the threads of the target CPU's core are not
- * preempted or ceded, then consider target CPU to be
- * non-preempted.
+ * The specific target CPU was marked by guest OS as idle, but
+ * then also check all other cpus in the core for PowerVM
+ * because it does core scheduling and one of the vcpu
+ * of the core getting preempted by hypervisor implies
+ * other vcpus can also be considered preempted.
*/
first_cpu = cpu_first_thread_sibling(cpu);
for (i = first_cpu; i < first_cpu + threads_per_core; i++) {
if (i == cpu)
continue;
- if (!(yield_count_of(i) & 1))
+ if (vcpu_is_dispatched(i))
return false;
if (!is_vcpu_idle(i))
return true;
diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h
index d9fcff575027..ce2b1b5eebdd 100644
--- a/arch/powerpc/include/asm/ppc-pci.h
+++ b/arch/powerpc/include/asm/ppc-pci.h
@@ -35,6 +35,9 @@ extern void init_pci_config_tokens (void);
extern unsigned long get_phb_buid (struct device_node *);
extern int rtas_setup_phb(struct pci_controller *phb);
+int rtas_pci_dn_read_config(struct pci_dn *pdn, int where, int size, u32 *val);
+int rtas_pci_dn_write_config(struct pci_dn *pdn, int where, int size, u32 val);
+
#ifdef CONFIG_EEH
void eeh_addr_cache_insert_dev(struct pci_dev *dev);
@@ -44,8 +47,6 @@ void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
int eeh_pci_enable(struct eeh_pe *pe, int function);
int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed);
void eeh_save_bars(struct eeh_dev *edev);
-int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
-int rtas_read_config(struct pci_dn *, int where, int size, u32 *val);
void eeh_pe_state_mark(struct eeh_pe *pe, int state);
void eeh_pe_mark_isolated(struct eeh_pe *pe);
void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed);
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index a5f36546a052..d13d8fdc3411 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -514,4 +514,10 @@ u64 ps3_get_spe_id(void *arg);
void ps3_early_mm_init(void);
+#ifdef CONFIG_PPC_EARLY_DEBUG_PS3GELIC
+void udbg_shutdown_ps3gelic(void);
+#else
+static inline void udbg_shutdown_ps3gelic(void) {}
+#endif
+
#endif
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 4ae4ab9090a2..7fd09f25452d 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1361,6 +1361,7 @@
#define PVR_POWER8E 0x004B
#define PVR_POWER8NVL 0x004C
#define PVR_POWER8 0x004D
+#define PVR_HX_C2000 0x0066
#define PVR_POWER9 0x004E
#define PVR_POWER10 0x0080
#define PVR_BE 0x0070
diff --git a/arch/powerpc/include/asm/reg_a2.h b/arch/powerpc/include/asm/reg_a2.h
deleted file mode 100644
index 74fba29e9491..000000000000
--- a/arch/powerpc/include/asm/reg_a2.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Register definitions specific to the A2 core
- *
- * Copyright (C) 2008 Ben. Herrenschmidt (benh@kernel.crashing.org), IBM Corp.
- */
-
-#ifndef __ASM_POWERPC_REG_A2_H__
-#define __ASM_POWERPC_REG_A2_H__
-
-#include <asm/asm-const.h>
-
-#define SPRN_TENSR 0x1b5
-#define SPRN_TENS 0x1b6 /* Thread ENable Set */
-#define SPRN_TENC 0x1b7 /* Thread ENable Clear */
-
-#define SPRN_A2_CCR0 0x3f0 /* Core Configuration Register 0 */
-#define SPRN_A2_CCR1 0x3f1 /* Core Configuration Register 1 */
-#define SPRN_A2_CCR2 0x3f2 /* Core Configuration Register 2 */
-#define SPRN_MMUCR0 0x3fc /* MMU Control Register 0 */
-#define SPRN_MMUCR1 0x3fd /* MMU Control Register 1 */
-#define SPRN_MMUCR2 0x3fe /* MMU Control Register 2 */
-#define SPRN_MMUCR3 0x3ff /* MMU Control Register 3 */
-
-#define SPRN_IAR 0x372
-
-#define SPRN_IUCR0 0x3f3
-#define IUCR0_ICBI_ACK 0x1000
-
-#define SPRN_XUCR0 0x3f6 /* Execution Unit Config Register 0 */
-
-#define A2_IERAT_SIZE 16
-#define A2_DERAT_SIZE 32
-
-/* A2 MMUCR0 bits */
-#define MMUCR0_ECL 0x80000000 /* Extended Class for TLB fills */
-#define MMUCR0_TID_NZ 0x40000000 /* TID is non-zero */
-#define MMUCR0_TS 0x10000000 /* Translation space for TLB fills */
-#define MMUCR0_TGS 0x20000000 /* Guest space for TLB fills */
-#define MMUCR0_TLBSEL 0x0c000000 /* TLB or ERAT target for TLB fills */
-#define MMUCR0_TLBSEL_U 0x00000000 /* TLBSEL = UTLB */
-#define MMUCR0_TLBSEL_I 0x08000000 /* TLBSEL = I-ERAT */
-#define MMUCR0_TLBSEL_D 0x0c000000 /* TLBSEL = D-ERAT */
-#define MMUCR0_LOCKSRSH 0x02000000 /* Use TLB lock on tlbsx. */
-#define MMUCR0_TID_MASK 0x000000ff /* TID field */
-
-/* A2 MMUCR1 bits */
-#define MMUCR1_IRRE 0x80000000 /* I-ERAT round robin enable */
-#define MMUCR1_DRRE 0x40000000 /* D-ERAT round robin enable */
-#define MMUCR1_REE 0x20000000 /* Reference Exception Enable*/
-#define MMUCR1_CEE 0x10000000 /* Change exception enable */
-#define MMUCR1_CSINV_ALL 0x00000000 /* Inval ERAT on all CS evts */
-#define MMUCR1_CSINV_NISYNC 0x04000000 /* Inval ERAT on all ex isync*/
-#define MMUCR1_CSINV_NEVER 0x0c000000 /* Don't inval ERAT on CS */
-#define MMUCR1_ICTID 0x00080000 /* IERAT class field as TID */
-#define MMUCR1_ITTID 0x00040000 /* IERAT thdid field as TID */
-#define MMUCR1_DCTID 0x00020000 /* DERAT class field as TID */
-#define MMUCR1_DTTID 0x00010000 /* DERAT thdid field as TID */
-#define MMUCR1_DCCD 0x00008000 /* DERAT class ignore */
-#define MMUCR1_TLBWE_BINV 0x00004000 /* back invalidate on tlbwe */
-
-/* A2 MMUCR2 bits */
-#define MMUCR2_PSSEL_SHIFT 4
-
-/* A2 MMUCR3 bits */
-#define MMUCR3_THID 0x0000000f /* Thread ID */
-
-/* *** ERAT TLB bits definitions */
-#define TLB0_EPN_MASK ASM_CONST(0xfffffffffffff000)
-#define TLB0_CLASS_MASK ASM_CONST(0x0000000000000c00)
-#define TLB0_CLASS_00 ASM_CONST(0x0000000000000000)
-#define TLB0_CLASS_01 ASM_CONST(0x0000000000000400)
-#define TLB0_CLASS_10 ASM_CONST(0x0000000000000800)
-#define TLB0_CLASS_11 ASM_CONST(0x0000000000000c00)
-#define TLB0_V ASM_CONST(0x0000000000000200)
-#define TLB0_X ASM_CONST(0x0000000000000100)
-#define TLB0_SIZE_MASK ASM_CONST(0x00000000000000f0)
-#define TLB0_SIZE_4K ASM_CONST(0x0000000000000010)
-#define TLB0_SIZE_64K ASM_CONST(0x0000000000000030)
-#define TLB0_SIZE_1M ASM_CONST(0x0000000000000050)
-#define TLB0_SIZE_16M ASM_CONST(0x0000000000000070)
-#define TLB0_SIZE_1G ASM_CONST(0x00000000000000a0)
-#define TLB0_THDID_MASK ASM_CONST(0x000000000000000f)
-#define TLB0_THDID_0 ASM_CONST(0x0000000000000001)
-#define TLB0_THDID_1 ASM_CONST(0x0000000000000002)
-#define TLB0_THDID_2 ASM_CONST(0x0000000000000004)
-#define TLB0_THDID_3 ASM_CONST(0x0000000000000008)
-#define TLB0_THDID_ALL ASM_CONST(0x000000000000000f)
-
-#define TLB1_RESVATTR ASM_CONST(0x00f0000000000000)
-#define TLB1_U0 ASM_CONST(0x0008000000000000)
-#define TLB1_U1 ASM_CONST(0x0004000000000000)
-#define TLB1_U2 ASM_CONST(0x0002000000000000)
-#define TLB1_U3 ASM_CONST(0x0001000000000000)
-#define TLB1_R ASM_CONST(0x0000800000000000)
-#define TLB1_C ASM_CONST(0x0000400000000000)
-#define TLB1_RPN_MASK ASM_CONST(0x000003fffffff000)
-#define TLB1_W ASM_CONST(0x0000000000000800)
-#define TLB1_I ASM_CONST(0x0000000000000400)
-#define TLB1_M ASM_CONST(0x0000000000000200)
-#define TLB1_G ASM_CONST(0x0000000000000100)
-#define TLB1_E ASM_CONST(0x0000000000000080)
-#define TLB1_VF ASM_CONST(0x0000000000000040)
-#define TLB1_UX ASM_CONST(0x0000000000000020)
-#define TLB1_SX ASM_CONST(0x0000000000000010)
-#define TLB1_UW ASM_CONST(0x0000000000000008)
-#define TLB1_SW ASM_CONST(0x0000000000000004)
-#define TLB1_UR ASM_CONST(0x0000000000000002)
-#define TLB1_SR ASM_CONST(0x0000000000000001)
-
-/* A2 erativax attributes definitions */
-#define ERATIVAX_RS_IS_ALL 0x000
-#define ERATIVAX_RS_IS_TID 0x040
-#define ERATIVAX_RS_IS_CLASS 0x080
-#define ERATIVAX_RS_IS_FULLMATCH 0x0c0
-#define ERATIVAX_CLASS_00 0x000
-#define ERATIVAX_CLASS_01 0x010
-#define ERATIVAX_CLASS_10 0x020
-#define ERATIVAX_CLASS_11 0x030
-#define ERATIVAX_PSIZE_4K (TLB_PSIZE_4K >> 1)
-#define ERATIVAX_PSIZE_64K (TLB_PSIZE_64K >> 1)
-#define ERATIVAX_PSIZE_1M (TLB_PSIZE_1M >> 1)
-#define ERATIVAX_PSIZE_16M (TLB_PSIZE_16M >> 1)
-#define ERATIVAX_PSIZE_1G (TLB_PSIZE_1G >> 1)
-
-/* A2 eratilx attributes definitions */
-#define ERATILX_T_ALL 0
-#define ERATILX_T_TID 1
-#define ERATILX_T_TGS 2
-#define ERATILX_T_FULLMATCH 3
-#define ERATILX_T_CLASS0 4
-#define ERATILX_T_CLASS1 5
-#define ERATILX_T_CLASS2 6
-#define ERATILX_T_CLASS3 7
-
-/* XUCR0 bits */
-#define XUCR0_TRACE_UM_T0 0x40000000 /* Thread 0 */
-#define XUCR0_TRACE_UM_T1 0x20000000 /* Thread 1 */
-#define XUCR0_TRACE_UM_T2 0x10000000 /* Thread 2 */
-#define XUCR0_TRACE_UM_T3 0x08000000 /* Thread 3 */
-
-/* A2 CCR0 register */
-#define A2_CCR0_PME_DISABLED 0x00000000
-#define A2_CCR0_PME_SLEEP 0x40000000
-#define A2_CCR0_PME_RVW 0x80000000
-#define A2_CCR0_PME_DISABLED2 0xc0000000
-
-/* A2 CCR2 register */
-#define A2_CCR2_ERAT_ONLY_MODE 0x00000001
-#define A2_CCR2_ENABLE_ICSWX 0x00000002
-#define A2_CCR2_ENABLE_PC 0x20000000
-#define A2_CCR2_ENABLE_TRACE 0x40000000
-
-#endif /* __ASM_POWERPC_REG_A2_H__ */
diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h
index c697c3c74694..9bb2210c8d44 100644
--- a/arch/powerpc/include/asm/rtas.h
+++ b/arch/powerpc/include/asm/rtas.h
@@ -3,6 +3,7 @@
#define _POWERPC_RTAS_H
#ifdef __KERNEL__
+#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <asm/page.h>
#include <asm/rtas-types.h>
@@ -201,12 +202,25 @@ typedef struct {
/* Memory set aside for sys_rtas to use with calls that need a work area. */
#define RTAS_USER_REGION_SIZE (64 * 1024)
-/* RTAS return status codes */
-#define RTAS_HARDWARE_ERROR -1 /* Hardware Error */
-#define RTAS_BUSY -2 /* RTAS Busy */
-#define RTAS_INVALID_PARAMETER -3 /* Invalid indicator/domain/sensor etc. */
-#define RTAS_EXTENDED_DELAY_MIN 9900
-#define RTAS_EXTENDED_DELAY_MAX 9905
+/*
+ * Common RTAS function return values, derived from the table "RTAS
+ * Status Word Values" in PAPR+ v2.13 7.2.8: "Return Codes". If a
+ * function can return a value in this table then generally it has the
+ * meaning listed here. More extended commentary in the documentation
+ * for rtas_call().
+ *
+ * RTAS functions may use negative and positive numbers not in this
+ * set for function-specific error and success conditions,
+ * respectively.
+ */
+#define RTAS_SUCCESS 0 /* Success. */
+#define RTAS_HARDWARE_ERROR -1 /* Hardware or other unspecified error. */
+#define RTAS_BUSY -2 /* Retry immediately. */
+#define RTAS_INVALID_PARAMETER -3 /* Invalid indicator/domain/sensor etc. */
+#define RTAS_UNEXPECTED_STATE_CHANGE -7 /* Seems limited to EEH and slot reset. */
+#define RTAS_EXTENDED_DELAY_MIN 9900 /* Retry after delaying for ~1ms. */
+#define RTAS_EXTENDED_DELAY_MAX 9905 /* Retry after delaying for ~100s. */
+#define RTAS_ML_ISOLATION_ERROR -9000 /* Multi-level isolation error. */
/* statuses specific to ibm,suspend-me */
#define RTAS_SUSPEND_ABORTED 9000 /* Suspension aborted */
@@ -268,7 +282,7 @@ typedef struct {
#define RTAS_TYPE_DEALLOC 0xE3
#define RTAS_TYPE_DUMP 0xE4
#define RTAS_TYPE_HOTPLUG 0xE5
-/* I don't add PowerMGM events right now, this is a different topic */
+/* I don't add PowerMGM events right now, this is a different topic */
#define RTAS_TYPE_PMGM_POWER_SW_ON 0x60
#define RTAS_TYPE_PMGM_POWER_SW_OFF 0x61
#define RTAS_TYPE_PMGM_LID_OPEN 0x62
@@ -408,44 +422,41 @@ static inline bool rtas_function_implemented(const rtas_fn_handle_t handle)
{
return rtas_function_token(handle) != RTAS_UNKNOWN_SERVICE;
}
-extern int rtas_token(const char *service);
-extern int rtas_service_present(const char *service);
-extern int rtas_call(int token, int, int, int *, ...);
+int rtas_token(const char *service);
+int rtas_call(int token, int nargs, int nret, int *outputs, ...);
void rtas_call_unlocked(struct rtas_args *args, int token, int nargs,
int nret, ...);
-extern void __noreturn rtas_restart(char *cmd);
-extern void rtas_power_off(void);
-extern void __noreturn rtas_halt(void);
-extern void rtas_os_term(char *str);
+void __noreturn rtas_restart(char *cmd);
+void rtas_power_off(void);
+void __noreturn rtas_halt(void);
+void rtas_os_term(char *str);
void rtas_activate_firmware(void);
-extern int rtas_get_sensor(int sensor, int index, int *state);
-extern int rtas_get_sensor_fast(int sensor, int index, int *state);
-extern int rtas_get_power_level(int powerdomain, int *level);
-extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);
-extern bool rtas_indicator_present(int token, int *maxindex);
-extern int rtas_set_indicator(int indicator, int index, int new_value);
-extern int rtas_set_indicator_fast(int indicator, int index, int new_value);
-extern void rtas_progress(char *s, unsigned short hex);
+int rtas_get_sensor(int sensor, int index, int *state);
+int rtas_get_sensor_fast(int sensor, int index, int *state);
+int rtas_get_power_level(int powerdomain, int *level);
+int rtas_set_power_level(int powerdomain, int level, int *setlevel);
+bool rtas_indicator_present(int token, int *maxindex);
+int rtas_set_indicator(int indicator, int index, int new_value);
+int rtas_set_indicator_fast(int indicator, int index, int new_value);
+void rtas_progress(char *s, unsigned short hex);
int rtas_ibm_suspend_me(int *fw_status);
int rtas_error_rc(int rtas_rc);
struct rtc_time;
-extern time64_t rtas_get_boot_time(void);
-extern void rtas_get_rtc_time(struct rtc_time *rtc_time);
-extern int rtas_set_rtc_time(struct rtc_time *rtc_time);
+time64_t rtas_get_boot_time(void);
+void rtas_get_rtc_time(struct rtc_time *rtc_time);
+int rtas_set_rtc_time(struct rtc_time *rtc_time);
-extern unsigned int rtas_busy_delay_time(int status);
+unsigned int rtas_busy_delay_time(int status);
bool rtas_busy_delay(int status);
-extern int early_init_dt_scan_rtas(unsigned long node,
- const char *uname, int depth, void *data);
+int early_init_dt_scan_rtas(unsigned long node, const char *uname, int depth, void *data);
-extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal);
+void pSeries_log_error(char *buf, unsigned int err_type, int fatal);
#ifdef CONFIG_PPC_PSERIES
extern time64_t last_rtas_event;
-extern int clobbering_unread_rtas_event(void);
-extern void post_mobility_fixup(void);
+int clobbering_unread_rtas_event(void);
int rtas_syscall_dispatch_ibm_suspend_me(u64 handle);
#else
static inline int clobbering_unread_rtas_event(void) { return 0; }
@@ -456,14 +467,14 @@ static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle)
#endif
#ifdef CONFIG_PPC_RTAS_DAEMON
-extern void rtas_cancel_event_scan(void);
+void rtas_cancel_event_scan(void);
#else
static inline void rtas_cancel_event_scan(void) { }
#endif
/* Error types logged. */
#define ERR_FLAG_ALREADY_LOGGED 0x0
-#define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */
+#define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */
#define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */
#define ERR_TYPE_KERNEL_PANIC 0x4 /* from die()/panic() */
#define ERR_TYPE_KERNEL_PANIC_GZ 0x8 /* ditto, compressed */
@@ -473,7 +484,7 @@ static inline void rtas_cancel_event_scan(void) { }
(ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ)
#define RTAS_DEBUG KERN_DEBUG "RTAS: "
-
+
#define RTAS_ERROR_LOG_MAX 2048
/*
@@ -481,7 +492,7 @@ static inline void rtas_cancel_event_scan(void) { }
* for all rtas calls that require an error buffer argument.
* This includes 'check-exception' and 'rtas-last-error'.
*/
-extern int rtas_get_error_log_max(void);
+int rtas_get_error_log_max(void);
/* Event Scan Parameters */
#define EVENT_SCAN_ALL_EVENTS 0xf0000000
@@ -502,6 +513,8 @@ extern char rtas_data_buf[RTAS_DATA_BUF_SIZE];
/* RMO buffer reserved for user-space RTAS use */
extern unsigned long rtas_rmo_buf;
+extern struct mutex rtas_ibm_get_vpd_lock;
+
#define GLOBAL_INTERRUPT_QUEUE 9005
/**
@@ -520,8 +533,8 @@ static inline u32 rtas_config_addr(int busno, int devfn, int reg)
(devfn << 8) | (reg & 0xff);
}
-extern void rtas_give_timebase(void);
-extern void rtas_take_timebase(void);
+void rtas_give_timebase(void);
+void rtas_take_timebase(void);
#ifdef CONFIG_PPC_RTAS
static inline int page_is_rtas_user_buf(unsigned long pfn)
@@ -534,7 +547,7 @@ static inline int page_is_rtas_user_buf(unsigned long pfn)
/* Not the best place to put pSeries_coalesce_init, will be fixed when we
* move some of the rtas suspend-me stuff to pseries */
-extern void pSeries_coalesce_init(void);
+void pSeries_coalesce_init(void);
void rtas_initialize(void);
#else
static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;}
@@ -542,8 +555,6 @@ static inline void pSeries_coalesce_init(void) { }
static inline void rtas_initialize(void) { }
#endif
-extern int call_rtas(const char *, int, int, unsigned long *, ...);
-
#ifdef CONFIG_HV_PERF_CTRS
void read_24x7_sys_info(void);
#else
diff --git a/arch/powerpc/include/uapi/asm/papr-miscdev.h b/arch/powerpc/include/uapi/asm/papr-miscdev.h
new file mode 100644
index 000000000000..49a2a270b7f3
--- /dev/null
+++ b/arch/powerpc/include/uapi/asm/papr-miscdev.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_PAPR_MISCDEV_H_
+#define _UAPI_PAPR_MISCDEV_H_
+
+enum {
+ PAPR_MISCDEV_IOC_ID = 0xb2,
+};
+
+#endif /* _UAPI_PAPR_MISCDEV_H_ */
diff --git a/arch/powerpc/include/uapi/asm/papr-sysparm.h b/arch/powerpc/include/uapi/asm/papr-sysparm.h
new file mode 100644
index 000000000000..9f9a0f267ea5
--- /dev/null
+++ b/arch/powerpc/include/uapi/asm/papr-sysparm.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_PAPR_SYSPARM_H_
+#define _UAPI_PAPR_SYSPARM_H_
+
+#include <linux/types.h>
+#include <asm/ioctl.h>
+#include <asm/papr-miscdev.h>
+
+enum {
+ PAPR_SYSPARM_MAX_INPUT = 1024,
+ PAPR_SYSPARM_MAX_OUTPUT = 4000,
+};
+
+struct papr_sysparm_io_block {
+ __u32 parameter;
+ __u16 length;
+ char data[PAPR_SYSPARM_MAX_OUTPUT];
+};
+
+/**
+ * PAPR_SYSPARM_IOC_GET - Retrieve the value of a PAPR system parameter.
+ *
+ * Uses _IOWR because of one corner case: Retrieving the value of the
+ * "OS Service Entitlement Status" parameter (60) requires the caller
+ * to supply input data (a date string) in the buffer passed to
+ * firmware. So the @length and @data of the incoming
+ * papr_sysparm_io_block are always used to initialize the work area
+ * supplied to ibm,get-system-parameter. No other parameters are known
+ * to parameterize the result this way, and callers are encouraged
+ * (but not required) to zero-initialize @length and @data in the
+ * common case.
+ *
+ * On error the contents of the ioblock are indeterminate.
+ *
+ * Return:
+ * 0: Success; @length is the length of valid data in @data, not to exceed @PAPR_SYSPARM_MAX_OUTPUT.
+ * -EIO: Platform error. (-1)
+ * -EINVAL: Incorrect data length or format. (-9999)
+ * -EPERM: The calling partition is not allowed to access this parameter. (-9002)
+ * -EOPNOTSUPP: Parameter not supported on this platform (-3)
+ */
+#define PAPR_SYSPARM_IOC_GET _IOWR(PAPR_MISCDEV_IOC_ID, 1, struct papr_sysparm_io_block)
+
+/**
+ * PAPR_SYSPARM_IOC_SET - Update the value of a PAPR system parameter.
+ *
+ * The contents of the ioblock are unchanged regardless of success.
+ *
+ * Return:
+ * 0: Success; the parameter has been updated.
+ * -EIO: Platform error. (-1)
+ * -EINVAL: Incorrect data length or format. (-9999)
+ * -EPERM: The calling partition is not allowed to access this parameter. (-9002)
+ * -EOPNOTSUPP: Parameter not supported on this platform (-3)
+ */
+#define PAPR_SYSPARM_IOC_SET _IOW(PAPR_MISCDEV_IOC_ID, 2, struct papr_sysparm_io_block)
+
+#endif /* _UAPI_PAPR_SYSPARM_H_ */
diff --git a/arch/powerpc/include/uapi/asm/papr-vpd.h b/arch/powerpc/include/uapi/asm/papr-vpd.h
new file mode 100644
index 000000000000..1c88e87cb420
--- /dev/null
+++ b/arch/powerpc/include/uapi/asm/papr-vpd.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_PAPR_VPD_H_
+#define _UAPI_PAPR_VPD_H_
+
+#include <asm/ioctl.h>
+#include <asm/papr-miscdev.h>
+
+struct papr_location_code {
+ /*
+ * PAPR+ v2.13 12.3.2.4 Converged Location Code Rules - Length
+ * Restrictions. 79 characters plus nul.
+ */
+ char str[80];
+};
+
+/*
+ * ioctl for /dev/papr-vpd. Returns a VPD handle fd corresponding to
+ * the location code.
+ */
+#define PAPR_VPD_IOC_CREATE_HANDLE _IOW(PAPR_MISCDEV_IOC_ID, 0, struct papr_location_code)
+
+#endif /* _UAPI_PAPR_VPD_H_ */