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-rw-r--r--arch/powerpc/kernel/cputable.c22
-rw-r--r--arch/powerpc/kernel/dma-iommu.c3
-rw-r--r--arch/powerpc/kernel/dt_cpu_ftrs.c6
-rw-r--r--arch/powerpc/kernel/entry_64.S4
-rw-r--r--arch/powerpc/kernel/fadump.c57
-rw-r--r--arch/powerpc/kernel/kprobes.c53
-rw-r--r--arch/powerpc/kernel/process.c12
-rw-r--r--arch/powerpc/kernel/setup-common.c1
-rw-r--r--arch/powerpc/kernel/syscalls/syscall.tbl12
-rw-r--r--arch/powerpc/kernel/vdso32/Makefile2
-rw-r--r--arch/powerpc/kernel/vdso32/vdso32.lds.S1
-rw-r--r--arch/powerpc/kernel/vdso64/Makefile2
-rw-r--r--arch/powerpc/kernel/vdso64/vdso64.lds.S3
-rw-r--r--arch/powerpc/kernel/vmlinux.lds.S2
14 files changed, 76 insertions, 104 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 3d406a9626e8..2aa89c6b2896 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -72,9 +72,6 @@ extern void __setup_cpu_power9(unsigned long offset, struct cpu_spec* spec);
extern void __restore_cpu_power9(void);
extern void __setup_cpu_power10(unsigned long offset, struct cpu_spec* spec);
extern void __restore_cpu_power10(void);
-extern long __machine_check_early_realmode_p7(struct pt_regs *regs);
-extern long __machine_check_early_realmode_p8(struct pt_regs *regs);
-extern long __machine_check_early_realmode_p9(struct pt_regs *regs);
#endif /* CONFIG_PPC64 */
#if defined(CONFIG_E500)
extern void __setup_cpu_e5500(unsigned long offset, struct cpu_spec* spec);
@@ -542,6 +539,25 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check_early = __machine_check_early_realmode_p9,
.platform = "power9",
},
+ { /* Power10 */
+ .pvr_mask = 0xffff0000,
+ .pvr_value = 0x00800000,
+ .cpu_name = "POWER10 (raw)",
+ .cpu_features = CPU_FTRS_POWER10,
+ .cpu_user_features = COMMON_USER_POWER10,
+ .cpu_user_features2 = COMMON_USER2_POWER10,
+ .mmu_features = MMU_FTRS_POWER10,
+ .icache_bsize = 128,
+ .dcache_bsize = 128,
+ .num_pmcs = 6,
+ .pmc_type = PPC_PMC_IBM,
+ .oprofile_cpu_type = "ppc64/power10",
+ .oprofile_type = PPC_OPROFILE_INVALID,
+ .cpu_setup = __setup_cpu_power10,
+ .cpu_restore = __restore_cpu_power10,
+ .machine_check_early = __machine_check_early_realmode_p10,
+ .platform = "power10",
+ },
{ /* Cell Broadband Engine */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00700000,
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 569fecd7b5b2..9053fc9d20c7 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -120,7 +120,8 @@ u64 dma_iommu_get_required_mask(struct device *dev)
if (!tbl)
return 0;
- mask = 1ULL < (fls_long(tbl->it_offset + tbl->it_size) - 1);
+ mask = 1ULL << (fls_long(tbl->it_offset + tbl->it_size) +
+ tbl->it_page_shift - 1);
mask += mask - 1;
return mask;
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 6f8c0c6b937a..f204ad79b6b5 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -64,10 +64,6 @@ struct dt_cpu_feature {
* Set up the base CPU
*/
-extern long __machine_check_early_realmode_p8(struct pt_regs *regs);
-extern long __machine_check_early_realmode_p9(struct pt_regs *regs);
-extern long __machine_check_early_realmode_p10(struct pt_regs *regs);
-
static int hv_mode;
static struct {
@@ -657,7 +653,7 @@ static struct dt_cpu_feature_match __initdata
{"processor-control-facility-v3", feat_enable_dbell, CPU_FTR_DBELL},
{"processor-utilization-of-resources-register", feat_enable_purr, 0},
{"no-execute", feat_enable, 0},
- /* strong-access-ordering is unused */
+ {"strong-access-ordering", feat_enable, CPU_FTR_SAO},
{"cache-inhibited-large-page", feat_enable_large_ci, 0},
{"coprocessor-icswx", feat_enable, 0},
{"hypervisor-virtualization-interrupt", feat_enable_hvi, 0},
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 33a42e42c56f..733e40eba4eb 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -113,6 +113,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM)
ld r11,exception_marker@toc(r2)
std r11,-16(r10) /* "regshere" marker */
+BEGIN_FTR_SECTION
+ HMT_MEDIUM
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+
/*
* RECONCILE_IRQ_STATE without calling trace_hardirqs_off(), which
* would clobber syscall parameters. Also we always enter with IRQs
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 10ebb4bf71ad..5cdf4168a61a 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -191,13 +191,13 @@ int is_fadump_active(void)
*/
static bool is_fadump_mem_area_contiguous(u64 d_start, u64 d_end)
{
- struct memblock_region *reg;
+ phys_addr_t reg_start, reg_end;
bool ret = false;
- u64 start, end;
+ u64 i, start, end;
- for_each_memblock(memory, reg) {
- start = max_t(u64, d_start, reg->base);
- end = min_t(u64, d_end, (reg->base + reg->size));
+ for_each_mem_range(i, &reg_start, &reg_end) {
+ start = max_t(u64, d_start, reg_start);
+ end = min_t(u64, d_end, reg_end);
if (d_start < end) {
/* Memory hole from d_start to start */
if (start > d_start)
@@ -422,34 +422,34 @@ static int __init add_boot_mem_regions(unsigned long mstart,
static int __init fadump_get_boot_mem_regions(void)
{
- unsigned long base, size, cur_size, hole_size, last_end;
+ unsigned long size, cur_size, hole_size, last_end;
unsigned long mem_size = fw_dump.boot_memory_size;
- struct memblock_region *reg;
+ phys_addr_t reg_start, reg_end;
int ret = 1;
+ u64 i;
fw_dump.boot_mem_regs_cnt = 0;
last_end = 0;
hole_size = 0;
cur_size = 0;
- for_each_memblock(memory, reg) {
- base = reg->base;
- size = reg->size;
- hole_size += (base - last_end);
+ for_each_mem_range(i, &reg_start, &reg_end) {
+ size = reg_end - reg_start;
+ hole_size += (reg_start - last_end);
if ((cur_size + size) >= mem_size) {
size = (mem_size - cur_size);
- ret = add_boot_mem_regions(base, size);
+ ret = add_boot_mem_regions(reg_start, size);
break;
}
mem_size -= size;
cur_size += size;
- ret = add_boot_mem_regions(base, size);
+ ret = add_boot_mem_regions(reg_start, size);
if (!ret)
break;
- last_end = base + size;
+ last_end = reg_end;
}
fw_dump.boot_mem_top = PAGE_ALIGN(fw_dump.boot_memory_size + hole_size);
@@ -985,9 +985,8 @@ static int fadump_init_elfcore_header(char *bufp)
*/
static int fadump_setup_crash_memory_ranges(void)
{
- struct memblock_region *reg;
- u64 start, end;
- int i, ret;
+ u64 i, start, end;
+ int ret;
pr_debug("Setup crash memory ranges.\n");
crash_mrange_info.mem_range_cnt = 0;
@@ -1005,10 +1004,7 @@ static int fadump_setup_crash_memory_ranges(void)
return ret;
}
- for_each_memblock(memory, reg) {
- start = (u64)reg->base;
- end = start + (u64)reg->size;
-
+ for_each_mem_range(i, &start, &end) {
/*
* skip the memory chunk that is already added
* (0 through boot_memory_top).
@@ -1242,14 +1238,17 @@ static void fadump_free_reserved_memory(unsigned long start_pfn,
*/
static void fadump_release_reserved_area(u64 start, u64 end)
{
+ unsigned long reg_spfn, reg_epfn;
u64 tstart, tend, spfn, epfn;
- struct memblock_region *reg;
+ int i;
spfn = PHYS_PFN(start);
epfn = PHYS_PFN(end);
- for_each_memblock(memory, reg) {
- tstart = max_t(u64, spfn, memblock_region_memory_base_pfn(reg));
- tend = min_t(u64, epfn, memblock_region_memory_end_pfn(reg));
+
+ for_each_mem_pfn_range(i, MAX_NUMNODES, &reg_spfn, &reg_epfn, NULL) {
+ tstart = max_t(u64, spfn, reg_spfn);
+ tend = min_t(u64, epfn, reg_epfn);
+
if (tstart < tend) {
fadump_free_reserved_memory(tstart, tend);
@@ -1684,12 +1683,10 @@ int __init fadump_reserve_mem(void)
/* Preserve everything above the base address */
static void __init fadump_reserve_crash_area(u64 base)
{
- struct memblock_region *reg;
- u64 mstart, msize;
+ u64 i, mstart, mend, msize;
- for_each_memblock(memory, reg) {
- mstart = reg->base;
- msize = reg->size;
+ for_each_mem_range(i, &mstart, &mend) {
+ msize = mend - mstart;
if ((mstart + msize) < base)
continue;
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 6ab9b4d037c3..01ab2163659e 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -218,6 +218,7 @@ bool arch_kprobe_on_func_entry(unsigned long offset)
void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs)
{
ri->ret_addr = (kprobe_opcode_t *)regs->link;
+ ri->fp = NULL;
/* Replace the return addr with trampoline addr */
regs->link = (unsigned long)kretprobe_trampoline;
@@ -396,50 +397,9 @@ asm(".global kretprobe_trampoline\n"
*/
static int trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
- struct kretprobe_instance *ri = NULL;
- struct hlist_head *head, empty_rp;
- struct hlist_node *tmp;
- unsigned long flags, orig_ret_address = 0;
- unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline;
-
- INIT_HLIST_HEAD(&empty_rp);
- kretprobe_hash_lock(current, &head, &flags);
-
- /*
- * It is possible to have multiple instances associated with a given
- * task either because an multiple functions in the call path
- * have a return probe installed on them, and/or more than one return
- * return probe was registered for a target function.
- *
- * We can handle this because:
- * - instances are always inserted at the head of the list
- * - when multiple return probes are registered for the same
- * function, the first instance's ret_addr will point to the
- * real return address, and all the rest will point to
- * kretprobe_trampoline
- */
- hlist_for_each_entry_safe(ri, tmp, head, hlist) {
- if (ri->task != current)
- /* another task is sharing our hash bucket */
- continue;
-
- if (ri->rp && ri->rp->handler)
- ri->rp->handler(ri, regs);
-
- orig_ret_address = (unsigned long)ri->ret_addr;
- recycle_rp_inst(ri, &empty_rp);
-
- if (orig_ret_address != trampoline_address)
- /*
- * This is the real return address. Any other
- * instances associated with this task are for
- * other calls deeper on the call stack
- */
- break;
- }
-
- kretprobe_assert(ri, orig_ret_address, trampoline_address);
+ unsigned long orig_ret_address;
+ orig_ret_address = __kretprobe_trampoline_handler(regs, &kretprobe_trampoline, NULL);
/*
* We get here through one of two paths:
* 1. by taking a trap -> kprobe_handler() -> here
@@ -458,13 +418,6 @@ static int trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
regs->nip = orig_ret_address - 4;
regs->link = orig_ret_address;
- kretprobe_hash_unlock(current, &flags);
-
- hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
- hlist_del(&ri->hlist);
- kfree(ri);
- }
-
return 0;
}
NOKPROBE_SYMBOL(trampoline_probe_handler);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 016bd831908e..73a57043ee66 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -548,7 +548,7 @@ void notrace restore_math(struct pt_regs *regs)
* are live for the user thread).
*/
if ((!(msr & MSR_FP)) && should_restore_fp())
- new_msr |= MSR_FP | current->thread.fpexc_mode;
+ new_msr |= MSR_FP;
if ((!(msr & MSR_VEC)) && should_restore_altivec())
new_msr |= MSR_VEC;
@@ -559,11 +559,17 @@ void notrace restore_math(struct pt_regs *regs)
}
if (new_msr) {
+ unsigned long fpexc_mode = 0;
+
msr_check_and_set(new_msr);
- if (new_msr & MSR_FP)
+ if (new_msr & MSR_FP) {
do_restore_fp();
+ // This also covers VSX, because VSX implies FP
+ fpexc_mode = current->thread.fpexc_mode;
+ }
+
if (new_msr & MSR_VEC)
do_restore_altivec();
@@ -572,7 +578,7 @@ void notrace restore_math(struct pt_regs *regs)
msr_check_and_clear(new_msr);
- regs->msr |= new_msr;
+ regs->msr |= new_msr | fpexc_mode;
}
}
#endif
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index b198b0ff25bc..808ec9fab605 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -311,6 +311,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
min = pvr & 0xFF;
break;
case 0x004e: /* POWER9 bits 12-15 give chip type */
+ case 0x0080: /* POWER10 bit 12 gives SMT8/4 */
maj = (pvr >> 8) & 0x0F;
min = pvr & 0xFF;
break;
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index c2d737ff2e7b..9d7fb4ced290 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -34,7 +34,7 @@
18 spu oldstat sys_ni_syscall
19 common lseek sys_lseek compat_sys_lseek
20 common getpid sys_getpid
-21 nospu mount sys_mount compat_sys_mount
+21 nospu mount sys_mount
22 32 umount sys_oldumount
22 64 umount sys_ni_syscall
22 spu umount sys_ni_syscall
@@ -193,8 +193,8 @@
142 common _newselect sys_select compat_sys_select
143 common flock sys_flock
144 common msync sys_msync
-145 common readv sys_readv compat_sys_readv
-146 common writev sys_writev compat_sys_writev
+145 common readv sys_readv
+146 common writev sys_writev
147 common getsid sys_getsid
148 common fdatasync sys_fdatasync
149 nospu _sysctl sys_ni_syscall
@@ -369,7 +369,7 @@
282 common unshare sys_unshare
283 common splice sys_splice
284 common tee sys_tee
-285 common vmsplice sys_vmsplice compat_sys_vmsplice
+285 common vmsplice sys_vmsplice
286 common openat sys_openat compat_sys_openat
287 common mkdirat sys_mkdirat
288 common mknodat sys_mknodat
@@ -449,8 +449,8 @@
348 common syncfs sys_syncfs
349 common sendmmsg sys_sendmmsg compat_sys_sendmmsg
350 common setns sys_setns
-351 nospu process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv
-352 nospu process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev
+351 nospu process_vm_readv sys_process_vm_readv
+352 nospu process_vm_writev sys_process_vm_writev
353 nospu finit_module sys_finit_module
354 nospu kcmp sys_kcmp
355 common sched_setattr sys_sched_setattr
diff --git a/arch/powerpc/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso32/Makefile
index 87ab1152d5ce..e147bbdc12cd 100644
--- a/arch/powerpc/kernel/vdso32/Makefile
+++ b/arch/powerpc/kernel/vdso32/Makefile
@@ -50,7 +50,7 @@ $(obj-vdso32): %.o: %.S FORCE
# actual build commands
quiet_cmd_vdso32ld = VDSO32L $@
- cmd_vdso32ld = $(VDSOCC) $(c_flags) $(CC32FLAGS) -o $@ $(call cc-ldoption, -Wl$(comma)--orphan-handling=warn) -Wl,-T$(filter %.lds,$^) $(filter %.o,$^)
+ cmd_vdso32ld = $(VDSOCC) $(c_flags) $(CC32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^)
quiet_cmd_vdso32as = VDSO32A $@
cmd_vdso32as = $(VDSOCC) $(a_flags) $(CC32FLAGS) -c -o $@ $<
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S
index 4c985467a668..5206c2eb2a1d 100644
--- a/arch/powerpc/kernel/vdso32/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S
@@ -111,7 +111,6 @@ SECTIONS
*(.note.GNU-stack)
*(.data .data.* .gnu.linkonce.d.* .sdata*)
*(.bss .sbss .dynbss .dynsbss)
- *(.glink .iplt .plt .rela*)
}
}
diff --git a/arch/powerpc/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile
index 38c317f25141..32ebb3522ea1 100644
--- a/arch/powerpc/kernel/vdso64/Makefile
+++ b/arch/powerpc/kernel/vdso64/Makefile
@@ -34,7 +34,7 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE
# actual build commands
quiet_cmd_vdso64ld = VDSO64L $@
- cmd_vdso64ld = $(CC) $(c_flags) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) $(call cc-ldoption, -Wl$(comma)--orphan-handling=warn)
+ cmd_vdso64ld = $(CC) $(c_flags) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^)
# install commands for the unstripped file
quiet_cmd_vdso_install = INSTALL $@
diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S
index 4e3a8d4ee614..256fb9720298 100644
--- a/arch/powerpc/kernel/vdso64/vdso64.lds.S
+++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S
@@ -30,7 +30,7 @@ SECTIONS
. = ALIGN(16);
.text : {
*(.text .stub .text.* .gnu.linkonce.t.* __ftr_alt_*)
- *(.sfpr)
+ *(.sfpr .glink)
} :text
PROVIDE(__etext = .);
PROVIDE(_etext = .);
@@ -111,7 +111,6 @@ SECTIONS
*(.branch_lt)
*(.data .data.* .gnu.linkonce.d.* .sdata*)
*(.bss .sbss .dynbss .dynsbss)
- *(.glink .iplt .plt .rela*)
}
}
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 326e113d2e45..e0548b4950de 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -360,8 +360,8 @@ SECTIONS
PROVIDE32 (end = .);
STABS_DEBUG
-
DWARF_DEBUG
+ ELF_DETAILS
DISCARDS
/DISCARD/ : {
generated by cgit v1.2.3-70-g09d2 (git 2.51.0) at 2025-09-26 18:26:52 +0000