Ard Biesheuvel
f56ab9a5b7
efi/arm: Don't mark ACPI reclaim memory as MEMBLOCK_NOMAP ...
On ARM, regions of memory that are described by UEFI as having special
significance to the firmware itself are omitted from the linear mapping.
This is necessary since we cannot guarantee that alternate mappings of
the same physical region will use attributes that are compatible with
the ones we use for the linear mapping, and aliases with mismatched
attributes are prohibited by the architecture.
The above does not apply to ACPI reclaim regions: such regions have no
special significance to the firmware, and it is up to the OS to decide
whether or not to preserve them after it has consumed their contents,
and for how long, after which time the OS can use the memory in any way
it likes. In the Linux case, such regions are preserved indefinitely,
and are simply treated the same way as other 'reserved' memory types.
Punching holes into the linear mapping causes page table fragmentation,
which increases TLB pressure, and so we should avoid doing so if we can.
So add a special case for regions of type EFI_ACPI_RECLAIM_MEMORY, and
memblock_reserve() them instead of marking them MEMBLOCK_NOMAP.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20170818194947.19347-2-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-21 09:43:49 +02:00
tty/serial fixes for 4.13-rc5
2017-08-13 12:33:35 -07:00
binder: Use wake up hint for synchronous transactions.
2017-07-17 14:44:19 +02:00
libata: fix a couple of doc build warnings
2017-07-31 08:03:06 -07:00
atm: zatm: Fix an error handling path in 'zatm_init_one()'
2017-07-18 11:37:46 -07:00
driver core fixes for 4.13-rc5
2017-08-13 12:44:18 -07:00
Merge branch 'stable/for-jens-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus
2017-08-16 09:56:34 -06:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-07-05 12:31:59 -07:00
bus: uniphier-system-bus: set up registers when resuming
2017-08-04 12:57:18 +02:00
block: don't set bounce limit in blk_init_queue
2017-06-27 12:13:45 -06:00
random: fix warning message on ia64 and parisc
2017-08-08 09:36:46 -07:00
clk: keystone: sci-clk: Fix sci_clk_get
2017-08-02 18:37:26 -07:00
clocksource/drivers/Kconfig: Fix CLKSRC_PISTACHIO dependencies
2017-08-11 12:53:29 +02:00
cpufreq: intel_pstate: report correct CPU frequencies during trace
2017-08-11 01:25:53 +02:00
powerpc/powernv/idle: Disable LOSE_FULL_CONTEXT states when stop-api fails
2017-08-08 20:21:23 +10:00
crypto: ixp4xx - Fix error handling path in 'aead_perform()'
2017-08-09 20:01:33 +08:00
- A few DM integrity fixes that improve performance. One that address
2017-07-28 12:17:17 -07:00
PM / devfreq: constify attribute_group structures.
2017-07-06 10:17:24 +09:00
dmaengine updates for 4.13-rc1
2017-07-08 12:36:50 -07:00
dma-buf/sync_file: Allow multiple sync_files to wrap a single dma-fence
2017-07-31 10:55:24 -03:00
EDAC, pnd2: Fix Apollo Lake DIMM detection
2017-06-29 10:37:50 +02:00
efi/arm: Don't mark ACPI reclaim memory as MEMBLOCK_NOMAP
2017-08-21 09:43:49 +02:00
drivers/fsi: fix fsi_slave_mode prototype
2017-07-17 16:13:54 +02:00
gpio: tegra: fix unbalanced chained_irq_enter/exit
2017-08-02 10:42:38 +02:00
Merge branch 'drm-fixes-4.13' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
2017-08-18 05:45:03 +10:00
HID: ortek: add one more buggy device
2017-07-24 17:38:21 +02:00
HSI changes for the v4.13 series
2017-07-04 14:28:22 -07:00
vmbus: re-enable channel tasklet
2017-07-17 15:00:47 +02:00
hwmon: (applesmc) Avoid buffer overruns
2017-07-15 16:38:56 -07:00
Char/Misc patches for 4.13-rc1
2017-07-03 20:55:59 -07:00
i2c: allow i2c-versatile for ARM MPS platforms
2017-07-31 17:05:16 +02:00
ide: avoid warning for timings calculation
2017-07-21 04:37:22 +01:00
intel_idle: Use more common logging style
2017-06-29 22:58:35 +02:00
First set of IIO fixes for the 4.13 cycle.
2017-07-23 20:54:31 -07:00
IB/uverbs: Fix NULL pointer dereference during device removal
2017-08-16 12:53:15 -04:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2017-08-17 13:45:44 -07:00
iommu/arm-smmu: fix null-pointer dereference in arm_smmu_add_device
2017-08-11 16:56:51 +02:00
irqchip fixes for 4.13
2017-08-14 09:34:10 +02:00
mISDN: Fix null pointer dereference at mISDN_FsmNew
2017-08-11 14:56:23 -07:00
LED updates for 4.13
2017-07-06 11:32:40 -07:00
lightnvm: pblk: advance bio according to lba index
2017-07-28 08:06:00 -06:00
Merge branch 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-07-05 13:13:32 -07:00
mailbox: pcc: Fix crash when request PCC channel 0
2017-07-26 02:11:47 +02:00
MD: not clear ->safemode for external metadata array
2017-08-11 20:42:06 -07:00
media: platform: davinci: drop VPFE_CMD_S_CCDC_RAW_PARAMS
2017-07-26 06:14:33 -04:00
ARM: SoC driver updates
2017-07-04 14:47:47 -07:00
chrome-platform-for-linus-4.13
2017-07-11 09:55:47 -07:00
mei: exclude device from suspend direct complete optimization
2017-08-10 14:13:18 -07:00
mmc: block: fix lockdep splat when removing mmc_block module
2017-08-09 13:19:44 +02:00
mtd: blkdevs: Fix mtd block write failure
2017-08-12 14:53:24 -07:00
mux: mux-core: unregister mux_class in mux_exit()
2017-07-17 16:38:35 +02:00
sfc: don't try and read ef10 data on non-ef10 NIC
2017-08-15 17:19:34 -07:00
NFC 4.13 pull request
2017-07-01 14:30:39 -07:00
ntb: Add error path/handling to Debug FS entry creation
2017-07-06 11:30:08 -04:00
libnvdimm: fix badblock range handling of ARS range
2017-07-17 11:43:58 -07:00
nvme-pci: set cqe_seen on polled completions
2017-08-18 09:19:39 +02:00
nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse
2017-07-17 16:15:57 +02:00
of: fix DMA mask generation
2017-08-17 10:23:45 +02:00
parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo
2017-08-16 09:50:39 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-08-15 18:52:28 -07:00
drivers/perf: arm_pmu: Request PMU SPIs with IRQF_PER_CPU
2017-07-27 13:43:22 +01:00
phy: bcm-ns-usb3: fix MDIO_BUS dependency
2017-07-27 17:20:19 -07:00
Pin control fixes for the v4.13 cycle:
2017-08-09 14:30:34 -07:00
platform/x86: intel-vbtn: match power button on press rather than release
2017-08-05 14:37:19 -07:00
This is the bulk of GPIO changes for the v4.13 series:
2017-07-07 12:40:27 -07:00
power supply and reset changes for the v4.13 series (part 2)
2017-07-13 11:47:59 -07:00
powercap/RAPL: prevent overridding bits outside of the mask
2017-06-28 00:38:34 +02:00
ptp: introduce ptp auxiliary worker
2017-08-01 15:22:55 -07:00
pwm: Changes for v4.13-rc1
2017-07-13 11:49:52 -07:00
arm64 updates for 4.13:
2017-07-05 17:09:27 -07:00
Merge remote-tracking branches 'regulator/topic/settle', 'regulator/topic/tps65910' and 'regulator/topic/tps65917' into regulator-next
2017-07-03 16:52:21 +01:00
remoteproc/keystone: Fix circular dependencies for ARM configs
2017-06-27 16:21:34 -07:00
ARM: SoC driver updates
2017-07-04 14:47:47 -07:00
rpmsg updates for v4.13
2017-07-06 15:38:31 -07:00
RTC for 4.13
2017-07-13 12:15:06 -07:00
s390/qeth: fix L3 next-hop in xmit qeth hdr
2017-08-07 11:24:37 -07:00
sbus: Convert to using %pOF instead of full_name
2017-07-20 12:37:10 -07:00
SCSI fixes on 20170816
2017-08-16 17:21:20 -07:00
drivers/sh/intc/virq.c: delete an error message for a failed memory allocation in add_virq_to_pirq()
2017-07-06 16:24:30 -07:00
soc: ti: ti_sci_pm_domains: Populate name for genpd
2017-08-18 11:59:53 +02:00
Merge branch 'for-spi' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-07-08 10:41:53 -07:00
spmi: pmic-arb: Always allocate ppid_to_apid table
2017-07-17 15:00:47 +02:00
staging/iio fixes for 4.13-rc5
2017-08-13 12:30:17 -07:00
target: Fix node_acl demo-mode + uncached dynamic shutdown regression
2017-08-09 20:55:19 -07:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2017-07-14 13:12:32 -07:00
char/misc fixes for 4.13-rc5
2017-08-13 12:41:58 -07:00
pty: fix the cached path of the pty slave file descriptor in the master
2017-08-17 09:10:48 -07:00
USB fixes for 4.13-rc5
2017-08-13 12:27:42 -07:00
driver core patches for 4.13-rc1
2017-07-03 20:27:48 -07:00
vfio/pci: Fix handling of RC integrated endpoint PCIe capability size
2017-07-27 10:39:33 -06:00
Revert "vhost: cache used event for better performance"
2017-07-29 14:15:56 -07:00
efifb: allow user to disable write combined mapping.
2017-07-31 18:45:41 +02:00
virtio-balloon: coding format cleanup
2017-07-25 16:37:35 +03:00
w1: omap-hdq: fix error return code in omap_hdq_probe()
2017-07-17 16:48:15 +02:00
Merge git://www.linux-watchdog.org/linux-watchdog
2017-07-11 09:59:37 -07:00
Merge branch 'stable/for-jens-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus
2017-08-16 09:56:34 -06:00
f56ab9a5b7