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linux/arch/powerpc/kernel
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Leonardo Bras fc5590fd56 powerpc/kernel/iommu: Use largepool as a last resort when !largealloc 
As of today, doing iommu_range_alloc() only for !largealloc (npages <= 15)
will only be able to use 3/4 of the available pages, given pages on
largepool  not being available for !largealloc.

This could mean some drivers not being able to fully use all the available
pages for the DMA window.

Add pages on largepool as a last resort for !largealloc, making all pages
of the DMA window available.

Signed-off-by: Leonardo Bras <leobras.c@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210318174414.684630-2-leobras.c@gmail.com
2021-04-23 12:54:58 +10:00
..
ptrace
powerpc: remove partial register save logic
2021-04-14 23:04:44 +10:00
syscalls
powerpc/syscalls: switch to generic syscallhdr.sh
2021-04-14 23:04:16 +10:00
trace
powerpc: Rename probe_kernel_read_inst()
2021-04-21 22:52:33 +10:00
vdso32
powerpc/vdso: Add support for time namespaces
2021-04-14 23:04:44 +10:00
vdso64
powerpc/vdso: Add support for time namespaces
2021-04-14 23:04:44 +10:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
align.c
powerpc: Rename probe_kernel_read_inst()
2021-04-21 22:52:33 +10:00
asm-offsets.c
powerpc/64e/interrupt: use new interrupt return
2021-04-14 23:04:20 +10:00
audit.c
…
btext.c
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00
cacheinfo.c
powerpc/cacheinfo: Print correct cache-sibling map/list for L2 cache
2020-12-11 00:10:25 +11:00
cacheinfo.h
powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild
2019-06-15 16:52:06 +10:00
compat_audit.c
…
cpu_setup_6xx.S
powerpc/32: Blacklist functions running with MMU disabled for kprobe
2020-06-02 20:59:11 +10:00
cpu_setup_44x.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
cpu_setup_fsl_booke.S
powerpc: Retire e200 core (mpc555x processor)
2020-12-05 21:49:18 +11:00
cpu_setup_pa6t.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
cpu_setup_power.c
powerpc/perf: MMCR0 control for PMU registers under PMCC=00
2020-12-04 01:01:29 +11:00
cpu_setup_ppc970.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
cputable.c
arch: powerpc: Stop building and using oprofile
2021-01-29 10:05:51 +05:30
crash_dump.c
powerpc: Add prefixed instructions to instruction data type
2020-05-19 00:10:39 +10:00
dawr.c
powerpc/watchpoint: Guest support for 2nd DAWR hcall
2020-07-26 23:34:19 +10:00
dbell.c
powerpc: handle irq_enter/irq_exit in interrupt handler wrappers
2021-02-09 00:10:49 +11:00
dma-iommu.c
powerpc/dma: Fallback to dma_ops when persistent memory present
2020-11-27 10:33:42 +01:00
dma-mask.c
dma-mapping, powerpc: simplify the arch dma_set_mask override
2019-02-18 22:41:03 +11:00
dma-swiotlb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dt_cpu_ftrs.c
arch: powerpc: Stop building and using oprofile
2021-01-29 10:05:51 +05:30
early_32.c
powerpc/fsl_booke/32: implement KASLR infrastructure
2019-11-13 19:27:40 +11:00
eeh_cache.c
powerpc/eeh_cache: Fix a possible debugfs deadlock
2020-11-02 12:54:20 +11:00
eeh_driver.c
pci-v5.9-changes
2020-08-07 18:48:15 -07:00
eeh_event.c
powerpc/eeh: Fix build with STACKTRACE=n
2019-09-14 00:01:14 +10:00
eeh_pe.c
powerpc/eeh: Delete eeh_pe->config_addr
2020-10-07 22:34:47 +11:00
eeh_sysfs.c
powerpc/eeh: Pass eeh_dev to eeh_ops->resume_notify()
2020-07-26 23:34:20 +10:00
eeh.c
powerpc/eeh: remove unneeded semicolon
2021-04-23 01:38:04 +10:00
entry_32.S
powerpc/32: Manage KUAP in C
2021-03-29 13:22:11 +11:00
entry_64.S
powerpc/64e/interrupt: reconcile irq soft-mask state in C
2021-04-14 23:04:43 +10:00
epapr_hcalls.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
epapr_paravirt.c
powerpc: Use a datatype for instructions
2020-05-19 00:10:37 +10:00
exceptions-64e.S
powerpc/64e/interrupt: handle bad_page_fault in C
2021-04-14 23:04:43 +10:00
exceptions-64s.S
Merge branch 'topic/ppc-kvm' into next
2021-04-18 23:55:12 +10:00
fadump.c
powerpc/fadump: Fix sparse warnings
2021-04-22 20:59:04 +10:00
firmware.c
powerpc: Reintroduce is_kvm_guest() as a fast-path check
2020-12-04 01:01:22 +11:00
fpu.S
powerpc/32: Always enable data translation in exception prolog
2021-03-29 13:22:05 +11:00
fsl_booke_entry_mapping.S
powerpc/fsl_booke/32: implement KASLR infrastructure
2019-11-13 19:27:40 +11:00
head_8xx.S
powerpc/8xx: Enhance readability of trap types
2021-04-21 22:52:31 +10:00
head_32.h
powerpc/32s: Move KUEP locking/unlocking in C
2021-03-29 13:22:10 +11:00
head_40x.S
powerpc/32: Refactor saving of volatile registers in exception prologs
2021-03-29 13:22:10 +11:00
head_44x.S
powerpc/32: Remove the xfer parameter in EXCEPTION() macro
2021-03-29 13:22:09 +11:00
head_64.S
powerpc/64s: Remove MSR[ISF] bit
2020-12-09 23:48:14 +11:00
head_book3s_32.S
powerpc/32s: Enhance readability of trap types
2021-04-21 22:52:31 +10:00
head_booke.h
powerpc/32s: Move KUEP locking/unlocking in C
2021-03-29 13:22:10 +11:00
head_fsl_booke.S
powerpc/64e: Trivial spelling fixes throughout head_fsl_booke.S
2021-03-29 13:22:12 +11:00
hw_breakpoint_constraints.c
powerpc/uaccess: Remove __get/put_user_inatomic()
2021-04-03 21:21:41 +11:00
hw_breakpoint.c
powerpc/watchpoint: Workaround P10 DD1 issue with VSX-32 byte instructions
2020-12-11 00:09:10 +11:00
idle_6xx.S
powerpc/32: Return directly from power_save_ppc32_restore()
2021-03-29 13:22:10 +11:00
idle_book3e.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
idle_book3s.S
powerpc/64s: power4 nap fixup in C
2021-04-08 21:17:45 +10:00
idle_e500.S
powerpc/32: Return directly from power_save_ppc32_restore()
2021-03-29 13:22:10 +11:00
idle.c
sched/idle: Fix arch_cpu_idle() vs tracing
2020-11-24 16:47:35 +01:00
ima_arch.c
powerpc/ima: Fix secure boot rules in ima arch policy
2020-05-07 17:25:54 +10:00
interrupt.c
powerpc/traps: Enhance readability for trap types
2021-04-17 22:20:19 +10:00
io-workarounds.c
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
io.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
iomap.c
powerpc: inline iomap accessors
2020-12-04 01:01:09 +11:00
iommu.c
powerpc/kernel/iommu: Use largepool as a last resort when !largealloc
2021-04-23 12:54:58 +10:00
irq.c
powerpc/irq: Enhance readability of trap types
2021-04-21 22:52:32 +10:00
isa-bridge.c
powerpc: remove __ioremap_at and __iounmap_at
2020-06-02 10:59:10 -07:00
jump_label.c
powerpc: Switch to relative jump labels
2021-04-03 21:22:21 +11:00
kgdb.c
powerpc/kernel: Trivial typo fix in kgdb.c
2021-03-29 13:22:15 +11:00
kprobes-ftrace.c
ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs
2020-11-13 12:14:55 -05:00
kprobes.c
powerpc: kprobes: Use generic kretprobe trampoline handler
2020-09-08 11:52:34 +02:00
kvm_emul.S
powerpc/kvm: Add ifdefs around template code
2019-09-14 00:04:40 +10:00
kvm.c
powerpc/kvm: Explicitly mark kvm guest code as __init
2019-09-14 00:04:40 +10:00
l2cr_6xx.S
powerpc: Drop SYNC_601() ISYNC_601() and SYNC()
2020-10-08 21:17:13 +11:00
legacy_serial.c
powerpc/legacy_serial: Use early_ioremap()
2021-04-22 20:59:15 +10:00
Makefile
powerpc updates for 5.12
2021-02-22 14:34:00 -08:00
mce_power.c
powerpc/64s/pseries: Add ERAT specific machine check handler
2020-12-04 01:01:23 +11:00
mce.c
powerpc/mce: save ignore_event flag unconditionally for UE
2021-04-21 22:52:32 +10:00
misc_32.S
powerpc/irq: Inline call_do_irq() and call_do_softirq()
2021-03-29 13:22:17 +11:00
misc_64.S
powerpc/irq: Inline call_do_irq() and call_do_softirq()
2021-03-29 13:22:17 +11:00
misc.S
powerpc/32: Blacklist functions running with MMU disabled for kprobe
2020-06-02 20:59:11 +10:00
module_32.c
powerpc: module_[32|64].c: replace swap function with built-in one
2020-05-11 23:15:14 +10:00
module_64.c
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
2020-06-17 10:57:41 -07:00
module.c
powerpc/modules: Load modules closer to kernel text
2021-04-14 23:04:13 +10:00
msi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
note.S
powerpc: Add PowerPC Capabilities ELF note
2019-08-30 09:40:15 +10:00
nvram_64.c
powerpc updates for 5.8
2020-06-05 12:39:30 -07:00
of_platform.c
powerpc/eeh: Remove eeh_dev_phb_init_dynamic()
2020-07-26 23:34:19 +10:00
optprobes_head.S
powerpc: Enable OPTPROBES on PPC32
2021-04-21 22:52:32 +10:00
optprobes.c
powerpc: Enable OPTPROBES on PPC32
2021-04-21 22:52:32 +10:00
paca.c
powerpc: Avoid broken GCC __attribute__((optimize))
2020-11-19 14:50:14 +11:00
pci_32.c
powerpc/64: Adjust order in pcibios_init()
2019-08-22 23:11:48 +10:00
pci_64.c
powerpc updates for 5.8
2020-06-05 12:39:30 -07:00
pci_dn.c
powerpc/pci: Move PHB discovery for PCI_DN using platforms
2021-02-09 00:01:05 +11:00
pci_of_scan.c
powerpc/pci: Remove pcibios_setup_bus_devices()
2020-01-06 16:25:29 +11:00
pci-common.c
powerpc/pci: Add ppc_md.discover_phbs()
2021-02-03 09:46:36 +11:00
pci-hotplug.c
powerpc/eeh: Release EEH device state synchronously
2020-05-18 21:58:44 +10:00
pmc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ppc32.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ppc_save_regs.S
powerpc: Improve ppc_save_regs()
2020-04-04 21:40:57 +11:00
proc_powerpc.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
process.c
powerpc/traps: Enhance readability for trap types
2021-04-17 22:20:19 +10:00
prom_init_check.sh
powerpc/prom_init: Undo relocation before entering secure mode
2019-10-29 15:12:17 +11:00
prom_init.c
powerpc: remove unneeded semicolon
2021-03-24 14:09:29 +11:00
prom_parse.c
…
prom.c
powerpc/smp: Cache CPU to chip lookup
2021-04-17 10:40:51 +10:00
reloc_32.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
reloc_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
rtas_flash.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
rtas_pci.c
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
rtas-proc.c
powerpc/rtas: rename RTAS_RMOBUF_MAX to RTAS_USER_REGION_SIZE
2021-04-14 23:04:16 +10:00
rtas-rtc.c
…
rtas.c
powerpc/rtas: rename RTAS_RMOBUF_MAX to RTAS_USER_REGION_SIZE
2021-04-14 23:04:16 +10:00
rtasd.c
powerpc/rtasd: simplify handle_rtas_event(), emit message on events
2020-07-16 13:12:38 +10:00
secure_boot.c
powerpc/pseries: Detect secure and trusted boot state of the system.
2020-07-16 14:49:53 +10:00
security.c
powerpc/security: Make symbol 'stf_barrier' static
2021-04-14 23:04:13 +10:00
secvar-ops.c
powerpc/powernv: Add OPAL API interface to access secure variable
2019-11-13 00:33:22 +11:00
secvar-sysfs.c
powerpc: expose secure variables to userspace via sysfs
2019-11-13 00:33:22 +11:00
setup_32.c
powerpc/32: Statically initialise first emergency context
2021-03-29 13:22:06 +11:00
setup_64.c
powerpc/powernv: Enable HAIL (HV AIL) for ISA v3.1 processors
2021-04-18 23:19:29 +10:00
setup-common.c
powerpc: Fix section mismatch warning in smp_setup_pacas()
2021-03-29 13:22:14 +11:00
setup.h
powerpc: remove unneeded semicolons
2021-02-09 00:10:50 +11:00
signal_32.c
powerpc: remove partial register save logic
2021-04-14 23:04:44 +10:00
signal_64.c
powerpc: remove partial register save logic
2021-04-14 23:04:44 +10:00
signal.c
powerpc/64: context tracking remove _TIF_NOHZ
2021-02-09 00:02:12 +11:00
signal.h
powerpc/signal32: Convert do_setcontext[_tm]() to user access block
2021-04-03 21:22:19 +11:00
smp-tbsync.c
…
smp.c
powerpc/smp: Set numa node before updating mask
2021-04-17 22:46:31 +10:00
stacktrace.c
powerpc: Fix arch_stack_walk() to have running function as first entry
2021-03-29 13:22:16 +11:00
suspend.c
PM: hibernate: powerpc: Expose pfn_is_nosave() prototype
2019-06-14 10:48:56 +02:00
swsusp_32.S
powerpc/32: Blacklist functions running with MMU disabled for kprobe
2020-06-02 20:59:11 +10:00
swsusp_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
2019-06-19 17:11:22 +02:00
swsusp_asm64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
2019-06-19 17:11:22 +02:00
swsusp_booke.S
…
swsusp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
sys_ppc32.c
powerpc/compat_sys: swap hi/lo parts of 64-bit syscall args in LE mode
2021-02-11 23:35:07 +11:00
syscalls.c
powerpc/syscalls: Use sys_old_select() in ppc_select()
2021-03-26 23:19:42 +11:00
sysfs.c
powerpc/sysfs: Remove unused 'err' variable in sysfs_create_dscr_default()
2020-09-18 20:05:24 +10:00
systbl_chk.sh
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
systbl.S
powerpc/syscalls: switch to generic syscalltbl.sh
2021-04-14 23:04:16 +10:00
tau_6xx.c
powerpc: handle irq_enter/irq_exit in interrupt handler wrappers
2021-02-09 00:10:49 +11:00
time.c
powerpc: handle irq_enter/irq_exit in interrupt handler wrappers
2021-02-09 00:10:49 +11:00
tm.S
powerpc/tm: Save and restore AMR on treclaim and trechkpt
2020-10-06 23:22:25 +11:00
traps.c
powerpc/traps: Enhance readability for trap types
2021-04-17 22:20:19 +10:00
ucall.S
powerpc/kernel: Add ucall_norets() ultravisor call handler
2019-08-30 09:40:15 +10:00
udbg_16550.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
udbg.c
powerpc/udbg: Make it safe to call udbg_printf() always
2019-10-11 19:33:25 +11:00
uprobes.c
powerpc/uprobes: Validation for prefixed instruction
2021-03-29 12:52:24 +11:00
vdso32_wrapper.S
powerpc/vdso: fix unnecessary rebuilds of vgettimeofday.o
2021-01-30 22:23:42 +11:00
vdso64_wrapper.S
powerpc/vdso: fix unnecessary rebuilds of vgettimeofday.o
2021-01-30 22:23:42 +11:00
vdso.c
powerpc/vdso: Add support for time namespaces
2021-04-14 23:04:44 +10:00
vecemu.c
powerpc: Define and use get_user_instr() et. al.
2020-05-19 00:10:37 +10:00
vector.S
powerpc/32: Always enable data translation in exception prolog
2021-03-29 13:22:05 +11:00
vmlinux.lds.S
powerpc/64s: fix scv entry fallback flush vs interrupt
2021-01-20 15:58:19 +11:00
watchdog.c
powerpc: move NMI entry/exit code into wrapper
2021-02-09 00:10:50 +11:00