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linux/arch/powerpc/kernel
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Christophe Leroy e7e846dc6c powerpc/mm: Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL 
Booting with CONFIG_DEBUG_VIRTUAL leads to following warning when
passing hugepage reservation on command line:

  Kernel command line: hugepagesz=1g hugepages=1 hugepagesz=64m hugepages=1 hugepagesz=256m hugepages=1 noreboot
  HugeTLB: allocating 1 of page size 1.00 GiB failed.  Only allocated 0 hugepages.
  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 0 at arch/powerpc/include/asm/io.h:948 __alloc_bootmem_huge_page+0xd4/0x284
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper Not tainted 6.10.0-rc6-00396-g6b0e82791bd0-dirty #936
  Hardware name: MPC8544DS e500v2 0x80210030 MPC8544 DS
  NIP:  c1020240 LR: c10201d0 CTR: 00000000
  REGS: c13fdd30 TRAP: 0700   Not tainted  (6.10.0-rc6-00396-g6b0e82791bd0-dirty)
  MSR:  00021000 <CE,ME>  CR: 44084288  XER: 20000000

  GPR00: c10201d0 c13fde20 c130b560 e8000000 e8001000 00000000 00000000 c1420000
  GPR08: 00000000 00028001 00000000 00000004 44084282 01066ac0 c0eb7c9c efffe149
  GPR16: c0fc4228 0000005f ffffffff c0eb7d0c c0eb7cc0 c0eb7ce0 ffffffff 00000000
  GPR24: c1441cec efffe153 e8001000 c14240c0 00000000 c1441d64 00000000 e8000000
  NIP [c1020240] __alloc_bootmem_huge_page+0xd4/0x284
  LR [c10201d0] __alloc_bootmem_huge_page+0x64/0x284
  Call Trace:
  [c13fde20] [c10201d0] __alloc_bootmem_huge_page+0x64/0x284 (unreliable)
  [c13fde50] [c10207b8] hugetlb_hstate_alloc_pages+0x8c/0x3e8
  [c13fdeb0] [c1021384] hugepages_setup+0x240/0x2cc
  [c13fdef0] [c1000574] unknown_bootoption+0xfc/0x280
  [c13fdf30] [c0078904] parse_args+0x200/0x4c4
  [c13fdfa0] [c1000d9c] start_kernel+0x238/0x7d0
  [c13fdff0] [c0000434] set_ivor+0x12c/0x168
  Code: 554aa33e 7c042840 3ce0c142 80a7427c 5109a016 50caa016 7c9a2378 7fdcf378 4180000c 7c052040 41810160 7c095040 <0fe00000> 38c00000 40800108 3c60c0eb
  ---[ end trace 0000000000000000 ]---

This is due to virt_addr_valid() using high_memory before it is set.

high_memory is set in mem_init() using max_low_pfn, but max_low_pfn
is available long before, it is set in mem_topology_setup(). So just
like commit daa9ada209 ("powerpc/mm: Fix boot crash with FLATMEM")
moved the setting of max_mapnr immediately after the call to
mem_topology_setup(), the same can be done for high_memory.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/62b69c4baad067093f39e7e60df0fe27a86b8d2a.1723100702.git.christophe.leroy@csgroup.eu
2024-08-12 21:50:20 +10:00
..
ptrace powerpc: Fix typos 2024-05-08 00:21:30 +10:00
syscalls powerpc: restore some missing spu syscalls 2024-06-25 15:57:26 +02:00
trace powerpc/ftrace: Ignore ftrace locations in exit text sections 2024-02-14 14:24:06 +11:00
vdso Makefile: remove redundant tool coverage variables 2024-05-14 23:35:48 +09:00
.gitignore
85xx_entry_mapping.S powerpc: Remove CONFIG_FSL_BOOKE 2022-09-26 22:47:37 +10:00
align.c
asm-offsets.c powerpc/4xx: Remove CONFIG_BOOKE_OR_40x 2024-06-28 22:28:48 +10:00
audit_32.h powerpc: address missing-prototypes warnings 2023-08-02 22:22:19 +10:00
audit.c powerpc: address missing-prototypes warnings 2023-08-02 22:22:19 +10:00
btext.c powerpc: Use shared font data 2023-10-01 23:09:02 +11:00
cacheinfo.c powerpc: Remove asm/prom.h from all files that don't need it 2022-05-08 22:15:04 +10:00
cacheinfo.h
compat_audit.c powerpc: address missing-prototypes warnings 2023-08-02 22:22:19 +10:00
cpu_setup_6xx.S powerpc: rename SPRN_HID2 define to SPRN_HID2_750FX 2024-05-08 00:25:00 +10:00
cpu_setup_44x.S
cpu_setup_e500.S powerpc/32: Fix objtool unannotated intra-function call warnings 2022-11-18 19:00:06 +11:00
cpu_setup_pa6t.S
cpu_setup_power.c powerpc/dexcr: Add initial Dynamic Execution Control Register (DEXCR) support 2023-06-19 17:36:25 +10:00
cpu_setup_ppc970.S
cpu_specs_8xx.h powerpc/cputable: Split cpu_specs[] out of cputable.h 2022-09-26 22:47:13 +10:00
cpu_specs_44x.h powerpc/cputable: Split cpu_specs[] out of cputable.h 2022-09-26 22:47:13 +10:00
cpu_specs_47x.h powerpc/cputable: Split cpu_specs[] out of cputable.h 2022-09-26 22:47:13 +10:00
cpu_specs_85xx.h powerpc/cputable: Split cpu_specs[] for mpc85xx and e500mc 2022-09-26 23:00:05 +10:00
cpu_specs_book3s_32.h powerpc/cputable: Split cpu_specs[] out of cputable.h 2022-09-26 22:47:13 +10:00
cpu_specs_book3s_64.h powerpc: Add Power11 architected and raw mode 2024-02-21 23:11:00 +11:00
cpu_specs_e500mc.h powerpc/cputable: Add missing PPC_FEATURE_BOOKE on PPC64 Book-E 2024-02-14 14:24:06 +11:00
cpu_specs.h powerpc: Remove core support for 40x 2024-06-28 22:28:47 +10:00
cputable.c powerpc: Make cpu_spec __ro_after_init 2023-11-27 22:01:14 +11:00
crash_dump.c powerpc/fadump: make is_kdump_kernel() return false when fadump is active 2023-09-18 12:23:27 +10:00
dawr.c powerpc: Include asm/firmware.h in all users of firmware_has_feature() 2022-06-29 16:45:05 +10:00
dbell.c powerpc/64: Fix perf profiling asynchronous interrupt handlers 2023-01-30 20:07:42 +11:00
dexcr.c powerpc/dexcr: Add DEXCR prctl interface 2024-05-06 22:04:31 +10:00
dma-iommu.c change alloc_pages name in dma_map_ops to avoid name conflicts 2024-04-25 20:55:53 -07:00
dma-mask.c dma-mapping: move arch_dma_set_mask() declaration to header 2023-07-31 17:54:28 +02:00
dma-swiotlb.c swiotlb: add a SWIOTLB_ANY flag to lift the low memory restriction 2022-04-18 07:21:12 +02:00
dt_cpu_ftrs.c powerpc: Add Power11 architected and raw mode 2024-02-21 23:11:00 +11:00
early_32.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
eeh_cache.c
eeh_driver.c powerpc/eeh: Permanently disable the removed device 2024-04-29 23:51:15 +10:00
eeh_event.c powerpc: fix typos in comments 2022-05-05 22:12:44 +10:00
eeh_pe.c powerpc/eeh: avoid possible crash when edev->pdev changes 2024-06-23 11:54:27 +10:00
eeh_sysfs.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
eeh.c powerpc/iommu: Move dev_has_iommu_table() to iommu.c 2024-06-28 17:03:40 +10:00
entry_32.S powerpc: Replace CONFIG_4xx with CONFIG_44x 2024-06-28 22:28:48 +10:00
epapr_hcalls.S powerpc/4xx: Remove CONFIG_BOOKE_OR_40x 2024-06-28 22:28:48 +10:00
epapr_paravirt.c
exceptions-64e.S powerpc/64e: drop unused TLB miss handlers 2024-07-12 15:52:15 -07:00
exceptions-64s.S docs: move powerpc under arch 2023-10-10 13:35:55 -06:00
fadump.c The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
firmware.c powerpc: Export kvm_guest static key, for bcachefs six locks 2024-01-01 11:47:38 -05:00
fpu.S powerpc: Don't clobber f0/vs0 during fp|altivec register save 2023-11-28 23:04:43 +11:00
head_8xx.S powerpc/8xx: rework support for 8M pages using contiguous PTE entries 2024-07-12 15:52:17 -07:00
head_32.h powerpc: Remove core support for 40x 2024-06-28 22:28:47 +10:00
head_44x.S powerpc/44x: Introduce _PAGE_READ and remove _PAGE_USER 2023-10-19 17:12:46 +11:00
head_64.S powerpc/64s: Fix unnecessary copy to 0 when kernel is booted at address 0 2024-06-23 11:54:13 +10:00
head_85xx.S powerpc/e500: use contiguous PMD instead of hugepd 2024-07-12 15:52:18 -07:00
head_book3s_32.S powerpc: use CONFIG_EXECMEM instead of CONFIG_MODULES where appropriate 2024-05-14 00:31:44 -07:00
head_booke.h powerpc: Remove core support for 40x 2024-06-28 22:28:47 +10:00
hw_breakpoint_constraints.c powerpc/watchpoint: Disable pagefaults when getting user instruction 2023-09-18 12:23:47 +10:00
hw_breakpoint.c powerpc/watchpoints: Annotate atomic context in more places 2023-09-18 12:23:47 +10:00
idle_6xx.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
idle_64e.S powerpc: add ISA v3.0 / v3.1 wait opcode macro 2022-09-28 19:22:10 +10:00
idle_85xx.S powerpc: Cleanup idle for e500 2022-09-26 23:00:14 +10:00
idle_book3s.S
idle.c powerpc: Remove now superfluous sentinel element from ctl_table arrays 2023-10-10 15:22:02 -07:00
ima_arch.c integrity: Always reference the blacklist keyring with appraisal 2023-08-01 08:17:25 -04:00
interrupt_64.S powerpc/64: Set task pt_regs->link to the LR value on scv entry 2024-02-05 22:43:19 +11:00
interrupt.c rseq: Split out rseq.h from sched.h 2023-12-27 11:49:56 -05:00
io-workarounds.c
io.c powerpc: Cast away __iomem in low level IO routines 2023-10-19 17:16:20 +11:00
iomap.c
iommu.c powerpc/iommu: Reimplement the iommu_table_group_ops for pSeries 2024-06-28 17:03:40 +10:00
irq_64.c work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
irq.c powerpc/4xx: Remove CONFIG_BOOKE_OR_40x 2024-06-28 22:28:48 +10:00
isa-bridge.c mm: Introduce vmap_page_range() to map pages in PCI address space 2024-03-11 16:58:10 +01:00
jump_label.c
kdebugfs.c
kgdb.c powerpc/4xx: Remove CONFIG_BOOKE_OR_40x 2024-06-28 22:28:48 +10:00
kprobes-ftrace.c kprobe/ftrace: bail out if ftrace was killed 2024-05-16 07:23:30 +09:00
kprobes.c powerpc: extend execmem_params for kprobes allocations 2024-05-14 00:31:43 -07:00
kvm_emul.S
kvm.c powerpc: Remove CONFIG_PPC_BOOK3E_MMU 2022-09-26 23:00:14 +10:00
l2cr_6xx.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
legacy_serial.c powerpc: Explicitly include correct DT includes 2023-08-02 22:22:19 +10:00
Makefile powerpc: Remove core support for 40x 2024-06-28 22:28:47 +10:00
mce_power.c
mce.c powerpc/mce: log the error for all unrecoverable errors 2023-02-10 22:17:34 +11:00
misc_32.S powerpc: Remove core support for 40x 2024-06-28 22:28:47 +10:00
misc_64.S powerpc: Fix typos 2024-05-08 00:21:30 +10:00
misc.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
module_32.c module: replace module_layout with module_memory 2023-03-09 12:55:15 -08:00
module_64.c powerpc/ftrace: Add support for -fpatchable-function-entry 2023-08-22 00:09:06 +10:00
module.c powerpc updates for 6.10 2024-05-17 09:05:46 -07:00
msi.c
note.S
nvram_64.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
of_platform.c powerpc: Explicitly include correct DT includes 2023-08-02 22:22:19 +10:00
optprobes_head.S powerpc: add definition for pt_regs offset within an interrupt frame 2022-12-02 17:54:08 +11:00
optprobes.c powerpc/kprobes: Have optimized_callback() use preempt_enable() 2022-11-24 23:31:49 +11:00
paca.c docs: move powerpc under arch 2023-10-10 13:35:55 -06:00
pci_32.c powerpc/pci: Add option for using pci_to_OF_bus_map 2023-02-07 20:15:23 +11:00
pci_64.c powerpc/pci_64: Init pcibios subsys a bit later 2023-03-14 23:36:27 +11:00
pci_dn.c powerpc/pci_dn: Add missing of_node_put() 2022-09-05 17:30:25 +10:00
pci_of_scan.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
pci-common.c arch: Rename fbdev header and source files 2024-05-03 17:07:50 +02:00
pci-hotplug.c powerpc/pci: Hotplug driver bridge support 2024-07-04 23:10:40 +10:00
pmc.c powerpc/85xx: Mark some functions static and add missing includes to fix no previous prototype error 2023-08-23 15:55:21 +10:00
ppc_save_regs.S powerpc: update ppc_save_regs to save current r1 in pt_regs 2023-06-19 17:37:14 +10:00
proc_powerpc.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
process.c powerpc: Replace CONFIG_4xx with CONFIG_44x 2024-06-28 22:28:48 +10:00
prom_entry_64.S powerpc/64: Rename entry_64.S to prom_entry_64.S 2023-06-15 14:04:19 +10:00
prom_init_check.sh kasan, powerpc: don't rename memintrinsics if compiler adds prefixes 2023-03-23 17:18:33 -07:00
prom_init.c powerpc/mm: Align memory_limit value specified using mem= kernel parameter 2024-04-19 16:09:14 +10:00
prom_parse.c
prom.c powerpc/prom: Add CPU info to hardware description string later 2024-06-28 22:31:00 +10:00
reloc_32.S
reloc_64.S powerpc/64: avoid using r13 in relocate 2022-09-28 19:22:13 +10:00
rtas_entry.S powerpc/rtas: Fix RTAS MSR[HV] handling for Cell 2022-08-26 08:41:54 +10:00
rtas_flash.c powerpc: add missing MODULE_DESCRIPTION() macros 2024-07-04 22:39:20 +10:00
rtas_pci.c powerpc/rtas_pci: rename and properly expose config access APIs 2023-11-28 21:49:45 +11:00
rtas-proc.c powerpc/rtas: Fix ppc_rtas_rmo_buf_show() kernel-doc 2023-11-07 13:13:45 +11:00
rtas-rtc.c powerpc/rtas: arch-wide function token lookup conversions 2023-02-13 22:35:03 +11:00
rtas.c powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas() 2024-06-28 22:28:58 +10:00
rtasd.c powerpc/rtas: arch-wide function token lookup conversions 2023-02-13 22:35:03 +11:00
secure_boot.c powerpc: Stop using of_root 2024-03-03 22:20:29 +11:00
security.c powerpc/security: Fix Speculation_Store_Bypass reporting on Power10 2023-07-10 09:47:47 +10:00
secvar-ops.c powerpc/secvar: Warn and error if multiple secvar ops are set 2023-02-12 22:12:36 +11:00
secvar-sysfs.c powerpc/secvar: Don't print error on ENOENT when reading variables 2023-02-12 22:12:37 +11:00
setup_32.c powerpc/4xx: Remove CONFIG_BOOKE_OR_40x 2024-06-28 22:28:48 +10:00
setup_64.c powerpc/64e: drop MMU_FTR_TYPE_FSL_E checks in 64-bit code 2024-07-12 15:52:14 -07:00
setup-common.c powerpc/mm: Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL 2024-08-12 21:50:20 +10:00
setup.h powerpc/4xx: Remove CONFIG_BOOKE_OR_40x 2024-06-28 22:28:48 +10:00
signal_32.c powerpc/signal32: Force inlining of __unsafe_save_user_regs() and save_tm_user_regs_unsafe() 2023-06-09 23:29:51 +10:00
signal_64.c powerpc/signal: Update comment for clarity 2022-07-28 16:22:14 +10:00
signal.c powerpc: Replace GPL 2.0+ README.legal boilerplate with SPDX 2023-09-19 20:05:58 +10:00
signal.h powerpc: Replace GPL 2.0+ README.legal boilerplate with SPDX 2023-09-19 20:05:58 +10:00
smp-tbsync.c
smp.c powerpc: Fix typos 2024-05-08 00:21:30 +10:00
stacktrace.c powerpc/stacktrace: Fix arch_stack_walk_reliable() 2023-09-22 20:29:27 +10:00
static_call.c
suspend.c
switch.S powerpc: merge 32-bit and 64-bit _switch implementation 2023-06-15 14:03:55 +10:00
swsusp_32.S powerpc/32: Fix objtool unannotated intra-function call warnings 2022-11-18 19:00:06 +11:00
swsusp_64.c powerpc/suspend: Add prototype for do_after_copyback() 2023-11-30 13:15:49 +11:00
swsusp_85xx.S powerpc: Remove CONFIG_FSL_BOOKE 2022-09-26 22:47:37 +10:00
swsusp_asm64.S powerpc/64: asm use consistent global variable declaration and access 2022-09-28 19:22:12 +10:00
swsusp.c
sys_ppc32.c powerpc/32: fix syscall wrappers with 64-bit arguments 2022-11-01 10:24:09 +11:00
syscall.c powerpc: Use user_mode() macro when possible 2024-02-22 21:55:33 +11:00
syscalls.c powerpc: Adopt SYSCALL_DEFINE for arch-specific syscall handlers 2022-09-28 19:22:08 +10:00
sysfs.c powerpc: Fix typos 2024-05-08 00:21:30 +10:00
systbl.c powerpc: Don't add __powerpc_ prefix to syscall entry points 2022-10-07 00:59:54 +11:00
tau_6xx.c powerpc, workqueue: Use alloc_ordered_workqueue() to create ordered workqueues 2023-05-08 13:52:27 -10:00
time.c powerpc/4xx: Remove CONFIG_BOOKE_OR_40x 2024-06-28 22:28:48 +10:00
tm.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
traps.c powerpc: Remove core support for 40x 2024-06-28 22:28:47 +10:00
ucall.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
udbg_16550.c powerpc: Remove core support for 40x 2024-06-28 22:28:47 +10:00
udbg.c powerpc: Remove core support for 40x 2024-06-28 22:28:47 +10:00
uprobes.c powerpc: Reject probes on instructions that can't be single stepped 2022-05-06 00:00:20 +10:00
vdso32_wrapper.S powerpc/vdso: Merge vdso64 and vdso32 into a single directory 2022-02-12 22:47:43 +11:00
vdso64_wrapper.S powerpc/vdso: Merge vdso64 and vdso32 into a single directory 2022-02-12 22:47:43 +11:00
vdso.c mm: remove zap_page_range and create zap_vma_pages 2023-01-18 17:12:55 -08:00
vecemu.c
vector.S powerpc: Don't clobber f0/vs0 during fp|altivec register save 2023-11-28 23:04:43 +11:00
vmlinux.lds.S init/modpost: conditionally check section mismatch to __meminit* 2024-07-12 16:39:52 -07:00
watchdog.c nmi_backtrace: allow excluding an arbitrary CPU 2023-08-18 10:19:00 -07:00