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Now all callers of mm_counter() have a folio, convert mm_counter() to take
a folio. Saves a call to compound_head() hidden inside PageAnon().
Link: https://lkml.kernel.org/r/20240111152429.3374566-10-willy@infradead.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Call pfn_swap_entry_folio() in ptep_zap_swap_entry() as preparation for
converting mm counter functions to take a folio.
Link: https://lkml.kernel.org/r/20240111152429.3374566-5-willy@infradead.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Enable MHP_MEMMAP_ON_MEMORY to support "memmap on memory".
memory_hotplug.memmap_on_memory=true kernel parameter should be set in
kernel boot option to enable the feature.
Link: https://lkml.kernel.org/r/20240108132747.3238763-6-sumanthk@linux.ibm.com
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Allocate memory map (struct pages array) from the hotplugged memory
range, rather than using system memory. The change addresses the issue
where standby memory, when configured to be much larger than online
memory, could potentially lead to ipl failure due to memory map
allocation from online memory. For example, 16MB of memory map
allocation is needed for a memory block size of 1GB and when standby
memory is configured much larger than online memory, this could lead to
ipl failure.
To address this issue, the solution involves introducing "memmap on
memory" using the vmem_altmap structure on s390. Architectures that
want to implement it should pass the altmap to the vmemmap_populate()
function and its associated callchain. This enhancement is discussed in
commit 4b94ffdc4163 ("x86, mm: introduce vmem_altmap to augment
vmemmap_populate()")
Provide "memmap on memory" support for s390 by passing the altmap in
vmemmap_populate() and its callchain. The allocation path is described
as follows:
* When altmap is NULL in vmemmap_populate(), memory map allocation
occurs using the existing vmemmap_alloc_block_buf().
* When altmap is not NULL in vmemmap_populate(), memory map allocation
still uses vmemmap_alloc_block_buf(), but this function internally
calls altmap_alloc_block_buf().
For deallocation, the process is outlined as follows:
* When altmap is NULL in vmemmap_free(), memory map deallocation happens
through free_pages().
* When altmap is not NULL in vmemmap_free(), memory map deallocation
occurs via vmem_altmap_free().
While memory map allocation is primarily handled through the
self-contained memory map range, there might still be a small amount of
system memory allocation required for vmemmap pagetables. To mitigate
this impact, this feature will be limited to machines with EDAT1
support.
Link: https://lkml.kernel.org/r/20240108132747.3238763-3-sumanthk@linux.ibm.com
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Nathan Chancellor <nathan@kernel.org> says:
Eric reported that builds of LLVM with [1] (close to tip of tree) have
CONFIG_AS_HAS_OPTION_ARCH=n because the test for expected failure on
invalid input has started succeeding.
This Kconfig test was added because '.option arch' only causes an
assembler warning when it is unsupported, rather than a hard error,
which is what users of as-instr expect when something is unsupported.
This can be resolved by turning assembler warnings into errors with
'-Wa,--fatal-warnings' like we do with the compiler with '-Werror',
which is what the first patch does. The second patch removes the invalid
test, as the valid test is good enough with fatal warnings.
I have diffed several configurations for the different architectures
that use as-instr and I have found no issues.
[1]: https://github.com/llvm/llvm-project/commit/3ac9fe69f70a2b3541266daedbaaa7dc9c007a2a
* b4-shazam-merge:
RISC-V: Drop invalid test from CONFIG_AS_HAS_OPTION_ARCH
kbuild: Add -Wa,--fatal-warnings to as-instr invocation
Link: https://lore.kernel.org/r/20240125-fix-riscv-option-arch-llvm-18-v1-0-390ac9cc3cd0@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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The bridge does not have any cells on the node level, just on the
ports.
The VGA connector is actually named "J30" on the board so give it that
name in the device tree.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The bridge does not have any cells on the node level, just on the
ports.
The VGA connector is actually named "J1" on the board so give it that
name in the device tree.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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When the development chip ROM was added, the "direct-mapped" compatible
value was already obsolete. In addition, the device node lacked the
accompanying "probe-type" property, causing the old physmap_of_core
driver to fall back to trying all available probe types.
Unfortunately this fallback was lost when the DT and pdata cases were
merged.
Fix this by using the modern "mtd-rom" compatible value instead.
Fixes: 5c3f5edbe0a1dff3 ("ARM: realview: add flash devices to the PB1176 DTS")
Fixes: 642b1e8dbed7bbbf ("mtd: maps: Merge physmap_of.c into physmap-core.c")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This part was commented out 25 years ago in:
commit d43c43b46ebfdb437b78206fcc1992c4d2e8c15e
Author: linus1 <torvalds@linuxfoundation.org>
Date: Tue Sep 7 11:00:00 1999 -0600
Import 2.3.26pre1
and probably no one knows why. Probably it was unused even then.
Just remove it.
[ bp: Expand commit message. ]
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240126030824.579711-1-chentao@kylinos.cn
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Enable Wave521c video decoder/encoder driver on all TI K3 platforms that
contain the IP.
Signed-off-by: Brandon Brnich <b-brnich@ti.com>
Link: https://lore.kernel.org/r/20240220191413.3355007-5-b-brnich@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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This updates ID_AA64DFR0_EL1.PMSVer and ID_AA64DFR0_EL1.DebugVer register
fields as per the definitions based on DDI0601 2023-12.
Cc: Will Deacon <will@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240220034829.3098373-1-anshuman.khandual@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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This updates ID_DFR0_EL1.PerfMon and ID_DFR0_EL1.CopDbg register fields as
per the definitions based on DDI0601 2023-12.
Cc: Will Deacon <will@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240220025343.3093955-1-anshuman.khandual@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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This adds register fields for ID_AA64DFR1_EL1 as per the definitions based
on DDI0601 2023-12.
Cc: Will Deacon <will@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240220023203.3091229-1-anshuman.khandual@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Pull kvm fixes from Paolo Bonzini:
"Two fixes for ARM ITS emulation. Unmapped interrupts were used instead
of ignored, causing NULL pointer dereferences"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: arm64: vgic-its: Test for valid IRQ in MOVALL handler
KVM: arm64: vgic-its: Test for valid IRQ in its_sync_lpi_pending_table()
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This patch adds support for the Wave521cl on the AM62P.
Signed-off-by: Brandon Brnich <b-brnich@ti.com>
Link: https://lore.kernel.org/r/20240220191413.3355007-4-b-brnich@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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Add the Chips and Media wave521cl video decoder/encoder node on J721S2.
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Brandon Brnich <b-brnich@ti.com>
Link: https://lore.kernel.org/r/20240220191413.3355007-3-b-brnich@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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This patch adds support for the Wave521cl on the J784S4-evm.
Signed-off-by: Brandon Brnich <b-brnich@ti.com>
Link: https://lore.kernel.org/r/20240220191413.3355007-2-b-brnich@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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AM69 SK has S28HS512T OSPI flash connected to MCU OSPI0.
Enable support for the same. Also describe the partition
information according to the offsets in the bootloader.
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Signed-off-by: Dasnavis Sabiya <sabiya.d@ti.com>
Link: https://lore.kernel.org/r/20240220162527.663394-3-sabiya.d@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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AM69 SK board has several CAN bus interfaces on both MCU and MAIN domains.
This enables the CAN interfaces on MCU and MAIN domain.
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Signed-off-by: Dasnavis Sabiya <sabiya.d@ti.com>
Link: https://lore.kernel.org/r/20240220162527.663394-2-sabiya.d@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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Enable symbols so that overlays can be applied on the base DTB for
SK-AM62P.
Also compile-test known-to-work camera sensor overlays for OV5640 and
IMX219.
Reviewed-by: Vaishnav Achath <vaishnav.a@ti.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20240220-am62p_csi-v2-4-3e71d9945571@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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AM62P supports image capture via the MIPI CSI-2 protocol, it uses three
IPs to achieve this: Cadence DPHY, Cadence CSI-RX, and TI's pixelgrabber
wrapper on top. Add nodes for these IPs in the devicetree, and keep them
disabled here, so these may be enabled by the sensor overlays.
Reviewed-by: Vaishnav Achath <vaishnav.a@ti.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20240220-am62p_csi-v2-3-3e71d9945571@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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On AM62P, CSI-RX uses a dedicated BCDMA instance (DMASS1) for
transferring captured camera frames to DDR, so enable it.
Reviewed-by: Vaishnav Achath <vaishnav.a@ti.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20240220-am62p_csi-v2-2-3e71d9945571@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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The INTR module for DMASS1 (CSI specific DMASS) is outside the currently
available ranges, as it starts at 0x4e400000. So fix the ranges property
to enable programming the interrupts correctly.
Fixes: 29075cc09f43 ("arm64: dts: ti: Introduce AM62P5 family of SoCs")
Reviewed-by: Vaishnav Achath <vaishnav.a@ti.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20240220-am62p_csi-v2-1-3e71d9945571@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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J722S EVM has S28HS512T 64 MiB Octal SPI NOR flash connected
to the OSPI interface, add support for the flash and describe
the partition information as per bootloader.
Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Link: https://lore.kernel.org/r/20240219090435.934383-3-vaishnav.a@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
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Enable MAC Port 1 of CPSW3G instance of CPSW Ethernet Switch in
RGMII-RXID mode of operation. Port 2 is not connected on the EVM,
thus keep it disabled.
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Link: https://lore.kernel.org/r/20240219090435.934383-2-vaishnav.a@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
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Change offset in mux-reg-masks property for serdes_ln_ctrl node
since reg-mux property is used in compatible.
Fixes: 2765149273f4 ("mux: mmio: use reg property when parent device is not a syscon")
Signed-off-by: Chintan Vankar <c-vankar@ti.com>
Acked-by: Andrew Davis <afd@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://lore.kernel.org/r/20240213080348.248916-1-s-vadapalli@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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Change offset in mux-reg-masks property for hbmc_mux node
since reg-mux property is used in compatible.
While here, update the reg region to include 4 bytes as this
is a 32bit register.
Fixes: 2765149273f4 ("mux: mmio: use reg property when parent device is not a syscon")
Suggested-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240215141957.13775-1-afd@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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Tegra234 boards use a mixture of aliases for the SD/MMC hardware blocks,
which can lead to confusion. A common method was to use mmc3 as the
alias for the eMMC because "SDMMC3" happens to be the name of the
corresponding controller in the reference manual. This isn't a great
choice because there is no hardware named SDMMC0, so the mmc0 alias
would never get used with that nomenclature and in fact mmc1 and mmc2
wouldn't either in many configurations, thereby creating weird
discontiguous enumeration.
Instead of trying to match the aliases to the hardware block names, use
mmc0 to denote the device's primary SD/MMC controller (typically eMMC)
and mmc1 for the secondary SD/MMC controller (typically removable SD).
In cases where eMMC is the only controller we can omit the mmc1 alias
and if a device has no eMMC, the removable SD card can be aliased to
mmc0 instead.
Co-developed-by: Russell Xiao <russellx@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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It's a bit nicer than having multiple lines and will help if there's
another re-work since we'll only have to change one location.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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The signature for __iowrite64_copy() requires the number of 64 bit
quantities, not bytes. Multiple by 8 to get to a byte length before
invoking zpci_memcpy_toio()
Fixes: 87bc359b9822 ("s390/pci: speed up __iowrite64_copy by using pci store block insn")
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/0-v1-9223d11a7662+1d7785-s390_iowrite64_jgg@nvidia.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Add support for two variants of the fbx8am board.
Signed-off-by: Pierre-Hugues Husson <phhusson@freebox.fr>
Signed-off-by: Marc Gonzalez <mgonzalez@freebox.fr>
Link: https://lore.kernel.org/r/79ba726d-d02c-44b9-b6f6-59b17ba9755c@freebox.fr
[narmstrong: squashed https://lore.kernel.org/all/814c9035-1fda-4cd3-ab3c-95b58e2ecb22@freebox.fr/]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
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The formally correct node names have "ethernet-*" prefix on
switch, ports and port, fix it up.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240211-gemini-dts-v1-4-6c09adeb4c2e@linaro.org
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This maps the misc "reset", "setup" and "facory reset" keys to the
only key a standard userspace is likely to understand: KEY_RESTART.
On OpenWrt this will simply restart the system under controlled
forms.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240211-gemini-dts-v1-3-6c09adeb4c2e@linaro.org
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These board strings were deprecated in the bindings ages ago,
switch the boards over to the real names.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240211-gemini-dts-v1-2-6c09adeb4c2e@linaro.org
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The formally correct node names have "ethernet-*" prefix on
switch, ports, port and phy, fix it up.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240211-gemini-dts-v1-1-6c09adeb4c2e@linaro.org
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Commit 55bffc8170bb ("fbdev: Split frame buffer support in FB and FB_CORE
symbols") added a new FB_CORE Kconfig symbol, that can be enabled to only
have fbcon/VT and DRM fbdev emulation, but without support for any legacy
fbdev driver.
Unfortunately, it missed to change the CONFIG_FB in arch/sparc makefiles,
which leads to the following linking error in some sparc64 configurations:
sparc64-linux-ld: drivers/video/fbdev/core/fbcon.o: in function `fbcon_fb_registered':
>> fbcon.c:(.text+0x4f60): undefined reference to `fb_is_primary_device'
Fixes: 55bffc8170bb ("fbdev: Split frame buffer support in FB and FB_CORE symbols")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202401290306.IV8rhJ02-lkp@intel.com/
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: <stable@vger.kernel.org> # v6.6+
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240220095428.3341195-1-javierm@redhat.com
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This reverts commit 482b718a84f08b6fc84879c3e90cc57dba11c115.
The preceding commits by Nicholas Piggin enable PS3 support for ELFv2,
so there's no need to disable it for PS3 anymore.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/983836405df1b6001a2262972fb32d1aee97d6f5.1705654669.git.geoff@infradead.org
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The PS3 hcall assembly code makes ad-hoc stack frames that don't have
a back-chain pointer or meet other requirements like minimum frame size.
This probably confuses stack unwinders. Give all hcalls a real stack
frame.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Geoff Levand <geoff@infradead.org>
[mpe: Add missing \ in LV1_2_IN_4_OUT]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231227072405.63751-4-npiggin@gmail.com
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The LRSAVE constant is required for assembly compiled for both 32-bit
and 64-bit, because the value differs there. PS3 is 64-bit only so
this is a noop, but it is nice to abstract stack frame offsets.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231227072405.63751-3-npiggin@gmail.com
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Stack-passed parameters begin at a different offset in the caller's
stack in the ELFv2 ABI.
Reported-by: Geoff Levand <geoff@infradead.org>
Fixes: 8c5fa3b5c4df ("powerpc/64: Make ELFv2 the default for big-endian builds")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231227072405.63751-2-npiggin@gmail.com
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PAPR will define a new ibm,pi-features bit which says that doorbells
should not be used even on architectures where they exist. This could be
because they are emulated and slower than using the interrupt controller
directly for IPIs.
Wire this bit into the pi-features parser to clear CPU_FTR_DBELL, and
ensure CPU_FTR_DBELL is not in CPU_FTRS_ALWAYS.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240207035220.339726-2-npiggin@gmail.com
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When a new ibm,pa/pi-features bit is introduced that is intended to
apply to existing systems and features, it may have an "inverted"
meaning (i.e., bit clear => feature available; bit set => unavailable).
Depending on the nature of the feature, this may give the best
backward compatibility result where old firmware will continue to
have that bit clear and therefore the feature available.
The 'invert' modifier presumably was introduced for this type of
feature bit. However it invert will set the feature if the bit is
clear, which prevents it being used in the situation where an old
CPU lacks a feature that a new CPU has, then a new firmware comes
out to disable that feature on the new CPU if the bit is set.
Adding an 'invert' entry for that feature would incorrectly enable
it for the old CPU.
So add a 'clear' modifier that clears the feature if the bit is set,
but it does not set the feature if the bit is clear. The feature
is expected to be set in the cpu table.
This replaces the 'invert' modifier, which is unused since commit
7d4703455168 ("powerpc/feature: Remove CPU_FTR_NODSISRALIGN").
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240207035220.339726-1-npiggin@gmail.com
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Base enablement patch to register performance monitoring
hardware support for Power11. Most of fields are copied
from power10_pmu struct for power11_pmu struct.
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240221044623.1598642-2-mpe@ellerman.id.au
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Add CPU table entries for raw and architected mode. Most fields are
copied from the Power10 table entries.
CPU, MMU and user (ELF_HWCAP) features are unchanged vs P10. However
userspace can detect P11 because the AT_PLATFORM value changes to
"power11".
The logical PVR value of 0x0F000007, passed to firmware via the
ibm_arch_vec, indicates the kernel can support a P11 compatible CPU,
which means at least ISA v3.1 compliant.
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240221044623.1598642-1-mpe@ellerman.id.au
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.8, take #3
- Check for the validity of interrupts handled by a MOVALL
command
- Check for the validity of interrupts while reading the
pending state on enabling LPIs.
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It is possible that an LPI mapped in a different ITS gets unmapped while
handling the MOVALL command. If that is the case, there is no state that
can be migrated to the destination. Silently ignore it and continue
migrating other LPIs.
Cc: stable@vger.kernel.org
Fixes: ff9c114394aa ("KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE")
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240221092732.4126848-3-oliver.upton@linux.dev
Signed-off-by: Marc Zyngier <maz@kernel.org>
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vgic_get_irq() may not return a valid descriptor if there is no ITS that
holds a valid translation for the specified INTID. If that is the case,
it is safe to silently ignore it and continue processing the LPI pending
table.
Cc: stable@vger.kernel.org
Fixes: 33d3bc9556a7 ("KVM: arm64: vgic-its: Read initial LPI pending table")
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240221092732.4126848-2-oliver.upton@linux.dev
Signed-off-by: Marc Zyngier <maz@kernel.org>
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Pick up CXL CPER notification removal for v6.8-rc6, to return in a later
merge window.
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The ARCH=um build has its own idea about strscpy()'s definition. Adjust
the callers to remove the redundant sizeof() arguments ahead of treewide
changes, since it needs a manual adjustment for the newly named
sized_strscpy() export.
Cc: Richard Weinberger <richard@nod.at>
Cc: linux-um@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
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Using sizeof(dst) for the "size" argument in strscpy() is the
overwhelmingly common case. Instead of requiring this everywhere, allow a
2-argument version to be used that will use the sizeof() internally. There
are other functions in the kernel with optional arguments[1], so this
isn't unprecedented, and improves readability. Update and relocate the
kern-doc for strscpy() too, and drop __HAVE_ARCH_STRSCPY as it is unused.
Adjust ARCH=um build to notice the changed export name, as it doesn't
do full header includes for the string helpers.
This could additionally let us save a few hundred lines of code:
1177 files changed, 2455 insertions(+), 3026 deletions(-)
with a treewide cleanup using Coccinelle:
@needless_arg@
expression DST, SRC;
@@
strscpy(DST, SRC
-, sizeof(DST)
)
Link: https://elixir.bootlin.com/linux/v6.7/source/include/linux/pci.h#L1517 [1]
Reviewed-by: Justin Stitt <justinstitt@google.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
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