summaryrefslogtreecommitdiff
path: root/arch
AgeCommit message (Collapse)Author
2024-12-10openrisc: Fix misalignments in head.SGeert Uytterhoeven
Align all line continuations and (sub)section headers in a consistent way. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Stafford Horne <shorne@gmail.com>
2024-12-10openrisc: place exception table at the head of vmlinuxMasahiro Yamada
Since commit 0043ecea2399 ("vmlinux.lds.h: Adjust symbol ordering in text output section"), the exception table in arch/openrisc/kernel/head.S is no longer positioned at the very beginning of the kernel image, which causes a boot failure. Currently, the exception table resides in the regular .text section. Previously, it was placed at the head by relying on the linker receiving arch/openrisc/kernel/head.o as the first object. However, this behavior has changed because sections like .text.{asan,unknown,unlikely,hot} now precede the regular .text section. The .head.text section is intended for entry points requiring special placement. However, in OpenRISC, this section has been misused: instead of the entry points, it contains boot code meant to be discarded after booting. This feature is typically handled by the .init.text section. This commit addresses the issue by replacing the current __HEAD marker with __INIT and re-annotating the entry points with __HEAD. Additionally, it adds __REF to entry.S to suppress the following modpost warning: WARNING: modpost: vmlinux: section mismatch in reference: _tng_kernel_start+0x70 (section: .text) -> _start (section: .init.text) Fixes: 0043ecea2399 ("vmlinux.lds.h: Adjust symbol ordering in text output section") Reported-by: Guenter Roeck <linux@roeck-us.net> Closes: https://lore.kernel.org/all/5e032233-5b65-4ad5-ac50-d2eb6c00171c@roeck-us.net/#t Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Rong Xu <xur@google.com> Signed-off-by: Stafford Horne <shorne@gmail.com>
2024-12-10arm64: asm: Fix typo in pgtable.hZhu Jun
The word 'trasferring' is wrong, so fix it. Signed-off-by: Zhu Jun <zhujun2@cmss.chinamobile.com> Link: https://lore.kernel.org/r/20241203093323.7831-1-zhujun2@cmss.chinamobile.com Signed-off-by: Will Deacon <will@kernel.org>
2024-12-10arm64/mm: Ensure adequate HUGE_MAX_HSTATEAnshuman Khandual
This asserts that HUGE_MAX_HSTATE is sufficient enough preventing potential hugetlb_max_hstate runtime overflow in hugetlb_add_hstate() thus triggering a BUG_ON() there after. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Link: https://lore.kernel.org/r/20241202064407.53807-1-anshuman.khandual@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2024-12-10arm64/mm: Replace open encodings with PXD_TABLE_BITAnshuman Khandual
[pgd|p4d]_bad() helpers have open encodings for their respective table bits which can be replaced with corresponding macros. This makes things clearer, thus improving their readability as well. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Link: https://lore.kernel.org/r/20241202083850.73207-1-anshuman.khandual@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2024-12-10arm64/mm: Drop INIT_MM_CONTEXT()Anshuman Khandual
Platform override for INIT_MM_CONTEXT() is redundant because swapper_pg_dir always gets assigned as the pgd during init_mm initialization. So just drop this override on arm64. Originally this override was added via the 'commit 2b5548b68199 ("arm64/mm: Separate boot-time page tables from swapper_pg_dir")' because non standard init_pg_dir was assigned as the pgd. Subsequently it was changed as default swapper_pg_dir by the 'commit ba5b0333a847 ("arm64: mm: omit redundant remap of kernel image")', which might have also just dropped this override. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Link: https://lore.kernel.org/r/20241202043553.29592-1-anshuman.khandual@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2024-12-10xtensa/simdisk: Use str_write_read() helper in simdisk_transfer()Thorsten Blum
Remove hard-coded strings by using the str_write_read() helper. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Message-Id: <20241210110935.104919-2-thorsten.blum@linux.dev> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2024-12-10arm64: dts: renesas: white-hawk-single: Add R-Car Sound supportGeert Uytterhoeven
White Hawk Single boards can use the same ARD-AUDIO-DA7212 external audio board as the White Hawk board stack. Add support for building DTBs for them, and document the small differences in connector labels. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/7c840b6e08e0af8a6b9bd5516969eb585f16e10a.1733402907.git.geert+renesas@glider.be
2024-12-10arm64: dts: renesas: white-hawk-ard-audio: Drop SoC partGeert Uytterhoeven
The White Hawk with ARD-AUDIO-DA7212 external audio board stack is not specific to R8A779G0. Hence rename its DTS file name to drop the "r8a779g0-" prefix. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/0a72c67991828784066f76b61605d2f7913a353c.1733402907.git.geert+renesas@glider.be
2024-12-10arm64: dts: renesas: r8a779g3: Add White Hawk Single supportGeert Uytterhoeven
The White Hawk Single board with R-Car V4H ES3.0 (R8A779G3) uses an updated version of the R-Car V4H (R8A779G0) SoC. For now, there are no visible differences compared to the variant equipped with an R-Car V4H ES2.0 (R8A779G2) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/66d0fe78c393e6df2775287c730464e91732ec56.1733156661.git.geert+renesas@glider.be
2024-12-10arm64: dts: renesas: Add R8A779G3 SoC supportGeert Uytterhoeven
Add support for the Renesas R-Car V4H ES3.0 (R8A779G3) SoC, which is an updated version of the R-Car V4H (R8A779G0) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/978c41f932aa2dccd46ad91fc1ddfabacd1c254c.1733156661.git.geert+renesas@glider.be
2024-12-10arm64: dts: renesas: Factor out White Hawk Single board supportGeert Uytterhoeven
Move the common parts for the Renesas White Hawk Single board to white-hawk-single.dtsi, to enable future reuse. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/1661743b18a9ff9fac716f98a663b39fc8488d7e.1733156661.git.geert+renesas@glider.be
2024-12-10arm64: dts: renesas: rzg3s-smarc: Enable I2C1 and connected power monitorWolfram Sang
Enable I2C1 for the carrier board and the connected power monitor ISL28022. Limit the bus speed to the maximum the power monitor supports. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Link: https://lore.kernel.org/20241120085345.24638-2-wsa+renesas@sang-engineering.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-12-10arm64: dts: renesas: rzg3s-smarc: Fix the debug serial aliasClaudiu Beznea
The debug serial of the RZ/G3S is SCIF0 which is routed on the Renesas RZ SMARC Carrier II board on the SER3_UART. Use serial3 alias for it for better hardware description. Along with it, the chosen properties were moved to the device tree corresponding to the RZ SMARC Carrier II board. Fixes: adb4f0c5699c ("arm64: dts: renesas: Add initial support for RZ/G3S SMARC SoM") Fixes: d1ae4200bb26 ("arm64: dts: renesas: Add initial device tree for RZ SMARC Carrier-II Board") Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/20241115134401.3893008-6-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-12-10arm64: dts: renesas: r9a08g045: Add the remaining SCIF interfacesClaudiu Beznea
The Renesas RZ/G3S SoC has 6 SCIF interfaces. SCIF0 is used as debug console. Add the remaining ones. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/20241115134401.3893008-5-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-12-10ARM: shmobile: defconfig: Refresh for v6.13-rc1Geert Uytterhoeven
Refresh the defconfig for Renesas ARM systems: - Enable RZ DMA Controller support, as used on the Genmai and RSK+RZA1 development boards. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/b8727e642508433016290a998c880b54de2e208d.1733320866.git.geert+renesas@glider.be
2024-12-10arm64: defconfig: Enable Renesas RZ/V2H(P) Watchdog driverLad Prabhakar
Enable the watchdog driver for the Renesas RZ/V2H(P) SoC. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/20241112093412.20093-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-12-10x86/boot/64: Fix spurious undefined reference when CONFIG_X86_5LEVEL=n, on ↵Ard Biesheuvel
GCC-12 In __startup_64(), the bool 'la57' can only assume the 'true' value if CONFIG_X86_5LEVEL is enabled in the build, and generally, the compiler can make this inference at build time, and elide any references to the symbol 'level4_kernel_pgt', which may be undefined if 'la57' is false. As it turns out, GCC 12 gets this wrong sometimes, and gives up with a build error: ld: arch/x86/kernel/head64.o: in function `__startup_64': head64.c:(.head.text+0xbd): undefined reference to `level4_kernel_pgt' even though the reference is in unreachable code. Fix this by duplicating the IS_ENABLED(CONFIG_X86_5LEVEL) in the conditional that tests the value of 'la57'. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20241209094105.762857-2-ardb+git@google.com Closes: https://lore.kernel.org/oe-kbuild-all/202412060403.efD8Kgb7-lkp@intel.com/
2024-12-10x86/resctrl: Modify update_mba_bw() to use per CTRL_MON group eventTony Luck
update_mba_bw() hard codes use of the memory bandwidth local event which prevents more flexible options from being deployed. Change this function to use the event specified in the rdtgroup that is being processed. Mount time checks for the "mba_MBps" option ensure that local memory bandwidth is enabled. So drop the redundant is_mbm_local_enabled() check. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Link: https://lore.kernel.org/r/20241206163148.83828-4-tony.luck@intel.com
2024-12-10x86/resctrl: Prepare for per-CTRL_MON group mba_MBps controlTony Luck
Resctrl uses local memory bandwidth event as input to the feedback loop when the mba_MBps mount option is used. This means that this mount option cannot be used on systems that only support monitoring of total bandwidth. Prepare to allow users to choose the input event independently for each CTRL_MON group by adding a global variable "mba_mbps_default_event" used to set the default event for each CTRL_MON group, and a new field "mba_mbps_event" in struct rdtgroup to track which event is used for each CTRL_MON group. Notes: 1) Both of these are only used when the user mounts the filesystem with the "mba_MBps" option. 2) Only check for support of local bandwidth event when initializing mba_mbps_default_event. Support for total bandwidth event can be added after other routines in resctrl have been updated to handle total bandwidth event. [ bp: Move mba_mbps_default_event extern into the arch header. ] Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Link: https://lore.kernel.org/r/20241206163148.83828-3-tony.luck@intel.com
2024-12-10arm64: dts: mediatek: mt8183: Disable DSI display output by defaultChen-Yu Tsai
Most SoC dtsi files have the display output interfaces disabled by default, and only enabled on boards that utilize them. The MT8183 has it backwards: the display outputs are left enabled by default, and only disabled at the board level. Reverse the situation for the DSI output so that it follows the normal scheme. For ease of backporting the DPI output is handled in a separate patch. Fixes: 88ec840270e6 ("arm64: dts: mt8183: Add dsi node") Fixes: 19b6403f1e2a ("arm64: dts: mt8183: add mt8183 pumpkin board") Cc: stable@vger.kernel.org Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: Fei Shao <fshao@chromium.org> Link: https://lore.kernel.org/r/20241025075630.3917458-2-wenst@chromium.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
2024-12-10arm64: dts: mediatek: mt8183: Disable DPI display output by defaultChen-Yu Tsai
This reverts commit 377548f05bd0905db52a1d50e5b328b9b4eb049d. Most SoC dtsi files have the display output interfaces disabled by default, and only enabled on boards that utilize them. The MT8183 has it backwards: the display outputs are left enabled by default, and only disabled at the board level. Reverse the situation for the DPI output so that it follows the normal scheme. For ease of backporting the DSI output is handled in a separate patch. Fixes: 009d855a26fd ("arm64: dts: mt8183: add dpi node to mt8183") Fixes: 377548f05bd0 ("arm64: dts: mediatek: mt8183-kukui: Disable DPI display interface") Cc: stable@vger.kernel.org Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: Fei Shao <fshao@chromium.org> Link: https://lore.kernel.org/r/20241025075630.3917458-1-wenst@chromium.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
2024-12-10ARM: dts: stm32: lxa-tac: Add support for generation 3 devicesLeonard Göhrs
Add support for the lxa-tac generation 3 board based on the STM32MP153c. Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-10ARM: dts: stm32: lxa-tac: move adc and gpio{e,g} to gen{1,2} boardsLeonard Göhrs
This is a preparation patch in order to add lxa-tac generation 3 board. As the gen3 board has a different adc and gpio{e,g} setups, move these from the stm32mp15xc-lxa-tac.dtsi to the gen{1,2}.dts files. Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-10ARM: dts: stm32: lxa-tac: adjust USB gadget fifo sizes for multi functionLeonard Göhrs
Allow providing the Ethernet and mass storage functions on the USB peripheral port at the same time. Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-10ARM: dts: stm32: lxa-tac: extend the alias tableLeonard Göhrs
Some of the userspace software and tests depend on the can/i2c/spi devices having the same name on every boot. This may not always be the case based on e.g. parallel probe order. Assign static device numbers to all can/i2c/spi devices. Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-10ARM: dts: stm32: lxa-tac: disable the real time clockLeonard Göhrs
The RTC was enabled under the false assumption that the SoM already contains a suitable 32.768 kHz crystal. It does however not contain such a crystal and since none is fitted externally to the SoM the RTC can not be used on the hardware. Reflect that in the devicetree. Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-10ARM: dts: stm32: Fix IPCC EXTI declaration on stm32mp151Arnaud Pouliquen
The GIC IRQ type used for IPCC RX should be IRQ_TYPE_LEVEL_HIGH. Replacing the interrupt with the EXTI event changes the type to the numeric value 1, meaning IRQ_TYPE_EDGE_RISING. The issue is that EXTI event 61 is a direct event.The IRQ type of direct events is not used by EXTI and is propagated to the parent IRQ controller of EXTI, the GIC. Align the IRQ type to the value expected by the GIC by replacing the second parameter "1" with IRQ_TYPE_LEVEL_HIGH. Fixes: 7d9802bb0e34 ("ARM: dts: stm32: remove the IPCC "wakeup" IRQ on stm32mp151") Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-09powerpc/crc: delete obsolete crc-vpmsum_test.cEric Biggers
Delete crc-vpmsum_test.c, since its functionality is now covered by the new crc_kunit.c as well as the crypto subsystem's fuzz tests. Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Cc: Vinicius Peixoto <vpeixoto@lkcamp.dev> Link: https://lore.kernel.org/r/20241202012056.209768-12-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
2024-12-09lib/crc32test: delete obsolete crc32test.cEric Biggers
Delete crc32test.c, since it has been superseded by crc_kunit.c. Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k Cc: Vinicius Peixoto <vpeixoto@lkcamp.dev> Link: https://lore.kernel.org/r/20241202012056.209768-11-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
2024-12-10powerpc/xmon: Use str_yes_no() helper in dump_one_paca()Thorsten Blum
Remove hard-coded strings by using the str_yes_no() helper function. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20241129173337.57890-2-thorsten.blum@linux.dev
2024-12-10powerpc/32: Replace mulhdu() by mul_u64_u64_shr()Christophe Leroy
Using mul_u64_u64_shr() provides similar calculation as mulhdu() assembly function, but enables inlining by the compiler. The home-made assembly function had special handling for when one of the arguments is not a fully populated u64 but time functions use it to multiply timebase by a calculated scale which is constructed to have most significant bit set. On mpc8xx sched_clock() runs 3% faster. On mpc83xx it is 2%. As you can see below, sched_clock() is not much bigger than before: c000cf68 <sched_clock>: c000cf68: 7d 2d 42 a6 mftbu r9 c000cf6c: 7d 0c 42 a6 mftb r8 c000cf70: 7d 4d 42 a6 mftbu r10 c000cf74: 7c 09 50 40 cmplw r9,r10 c000cf78: 40 82 ff f0 bne c000cf68 <sched_clock> c000cf7c: 3d 40 c1 37 lis r10,-16073 c000cf80: 38 8a b3 30 addi r4,r10,-19664 c000cf84: 80 ea b3 30 lwz r7,-19664(r10) c000cf88: 80 64 00 14 lwz r3,20(r4) c000cf8c: 39 40 00 00 li r10,0 c000cf90: 80 a4 00 04 lwz r5,4(r4) c000cf94: 80 c4 00 10 lwz r6,16(r4) c000cf98: 7c 63 40 10 subfc r3,r3,r8 c000cf9c: 80 84 00 08 lwz r4,8(r4) c000cfa0: 7d 06 49 10 subfe r8,r6,r9 c000cfa4: 7c c7 19 d6 mullw r6,r7,r3 c000cfa8: 7d 25 18 16 mulhwu r9,r5,r3 c000cfac: 7c 08 29 d6 mullw r0,r8,r5 c000cfb0: 7c 67 18 16 mulhwu r3,r7,r3 c000cfb4: 7d 29 30 14 addc r9,r9,r6 c000cfb8: 7c a8 28 16 mulhwu r5,r8,r5 c000cfbc: 7c ca 51 14 adde r6,r10,r10 c000cfc0: 7d 67 41 d6 mullw r11,r7,r8 c000cfc4: 7d 29 00 14 addc r9,r9,r0 c000cfc8: 7c c6 01 94 addze r6,r6 c000cfcc: 7c 63 28 14 addc r3,r3,r5 c000cfd0: 7d 4a 51 14 adde r10,r10,r10 c000cfd4: 7c e7 40 16 mulhwu r7,r7,r8 c000cfd8: 7c 63 58 14 addc r3,r3,r11 c000cfdc: 7d 4a 01 94 addze r10,r10 c000cfe0: 7c 63 30 14 addc r3,r3,r6 c000cfe4: 7d 4a 39 14 adde r10,r10,r7 c000cfe8: 35 24 ff e0 addic. r9,r4,-32 c000cfec: 41 80 00 10 blt c000cffc <sched_clock+0x94> c000cff0: 7c 63 48 30 slw r3,r3,r9 c000cff4: 38 80 00 00 li r4,0 c000cff8: 4e 80 00 20 blr c000cffc: 21 04 00 1f subfic r8,r4,31 c000d000: 54 69 f8 7e srwi r9,r3,1 c000d004: 7d 4a 20 30 slw r10,r10,r4 c000d008: 7d 29 44 30 srw r9,r9,r8 c000d00c: 7c 64 20 30 slw r4,r3,r4 c000d010: 7d 23 53 78 or r3,r9,r10 c000d014: 4e 80 00 20 blr Before this change: c000d0bc <sched_clock>: c000d0bc: 94 21 ff f0 stwu r1,-16(r1) c000d0c0: 7c 08 02 a6 mflr r0 c000d0c4: 90 01 00 14 stw r0,20(r1) c000d0c8: 93 e1 00 0c stw r31,12(r1) c000d0cc: 7d 2d 42 a6 mftbu r9 c000d0d0: 7d 0c 42 a6 mftb r8 c000d0d4: 7d 4d 42 a6 mftbu r10 c000d0d8: 7c 09 50 40 cmplw r9,r10 c000d0dc: 40 82 ff f0 bne c000d0cc <sched_clock+0x10> c000d0e0: 3f e0 c1 37 lis r31,-16073 c000d0e4: 3b ff b3 30 addi r31,r31,-19664 c000d0e8: 80 9f 00 14 lwz r4,20(r31) c000d0ec: 80 7f 00 10 lwz r3,16(r31) c000d0f0: 7c 84 40 10 subfc r4,r4,r8 c000d0f4: 80 bf 00 00 lwz r5,0(r31) c000d0f8: 80 df 00 04 lwz r6,4(r31) c000d0fc: 7c 63 49 10 subfe r3,r3,r9 c000d100: 48 00 37 85 bl c0010884 <mulhdu> c000d104: 81 3f 00 08 lwz r9,8(r31) c000d108: 35 49 ff e0 addic. r10,r9,-32 c000d10c: 41 80 00 20 blt c000d12c <sched_clock+0x70> c000d110: 80 01 00 14 lwz r0,20(r1) c000d114: 7c 83 50 30 slw r3,r4,r10 c000d118: 83 e1 00 0c lwz r31,12(r1) c000d11c: 38 80 00 00 li r4,0 c000d120: 7c 08 03 a6 mtlr r0 c000d124: 38 21 00 10 addi r1,r1,16 c000d128: 4e 80 00 20 blr c000d12c: 80 01 00 14 lwz r0,20(r1) c000d130: 54 8a f8 7e srwi r10,r4,1 c000d134: 21 09 00 1f subfic r8,r9,31 c000d138: 83 e1 00 0c lwz r31,12(r1) c000d13c: 7c 63 48 30 slw r3,r3,r9 c000d140: 7d 4a 44 30 srw r10,r10,r8 c000d144: 7c 84 48 30 slw r4,r4,r9 c000d148: 7d 43 1b 78 or r3,r10,r3 c000d14c: 7c 08 03 a6 mtlr r0 c000d150: 38 21 00 10 addi r1,r1,16 c000d154: 4e 80 00 20 blr c0010884 <mulhdu>: c0010884: 2c 06 00 00 cmpwi r6,0 c0010888: 2c 83 00 00 cmpwi cr1,r3,0 c001088c: 7c 8a 23 78 mr r10,r4 c0010890: 7c 84 28 16 mulhwu r4,r4,r5 c0010894: 41 82 00 14 beq c00108a8 <mulhdu+0x24> c0010898: 7c 0a 30 16 mulhwu r0,r10,r6 c001089c: 7c ea 29 d6 mullw r7,r10,r5 c00108a0: 7c e0 38 14 addc r7,r0,r7 c00108a4: 7c 84 01 94 addze r4,r4 c00108a8: 4d 86 00 20 beqlr cr1 c00108ac: 7d 23 29 d6 mullw r9,r3,r5 c00108b0: 7d 43 28 16 mulhwu r10,r3,r5 c00108b4: 41 82 00 18 beq c00108cc <mulhdu+0x48> c00108b8: 7c 03 31 d6 mullw r0,r3,r6 c00108bc: 7d 03 30 16 mulhwu r8,r3,r6 c00108c0: 7c e0 38 14 addc r7,r0,r7 c00108c4: 7c 84 41 14 adde r4,r4,r8 c00108c8: 7d 4a 01 94 addze r10,r10 c00108cc: 7c 84 48 14 addc r4,r4,r9 c00108d0: 7c 6a 01 94 addze r3,r10 c00108d4: 4e 80 00 20 blr Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/f29e473c193c87bdbd36b209dfdee99d2f0c60dc.1733566130.git.christophe.leroy@csgroup.eu
2024-12-09x86/resctrl: Introduce resctrl_file_fflags_init() to initialize fflagsBabu Moger
thread_throttle_mode_init() and mbm_config_rftype_init() both initialize fflags for resctrl files. Adding new files will involve adding another function to initialize the fflags. This can be simplified by adding a new function resctrl_file_fflags_init() and passing the file name and flags to be initialized. Consolidate fflags initialization into resctrl_file_fflags_init() and remove thread_throttle_mode_init() and mbm_config_rftype_init(). [ Tony: Drop __init attribute so resctrl_file_fflags_init() can be used at run time. ] Signed-off-by: Babu Moger <babu.moger@amd.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Link: https://lore.kernel.org/r/20241206163148.83828-2-tony.luck@intel.com
2024-12-09arm64: dts: exynos: Add initial support for Samsung Galaxy S20 (x1slte)Umer Uddin
Add initial support for the Samsung Galaxy S20 (x1slte/SM-G980F) phone. It was launched in 2020, and it's based on the Exynos 990 SoC. It has only one configuration with 8GB of RAM and 128GB of UFS 3.0 storage. This device tree adds support for the following: - SimpleFB - 8GB RAM - Buttons Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org> Link: https://lore.kernel.org/r/20241209080059.11891-5-umer.uddin@mentallysanemainliners.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2024-12-09arm64: dts: exynos: Add initial support for Samsung Galaxy S20 5G (x1s)Umer Uddin
Add initial support for the Samsung Galaxy S20 5G (x1s/SM-G981B) phone. It was launched in 2020, and it's based on the Exynos 990 SoC. It has only one configuration with 12GB of RAM and 128GB of UFS 3.0 storage. This device tree adds support for the following: - SimpleFB - 12GB RAM - Buttons Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org> Link: https://lore.kernel.org/r/20241209080059.11891-4-umer.uddin@mentallysanemainliners.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2024-12-09arm64: dts: exynos: Add initial support for Samsung Galaxy S20 Series boards ↵Umer Uddin
(x1s-common) Add initial support for the Samsung Galaxy S20 Series (x1s-common) phones. They were launched in 2020, and are based on the Exynos 990 SoC. The devices have multiple RAM configurations, starting from 8GB going all the way up to 16GB for the S20 Ultra devices. This device tree adds support for the following: - SimpleFB - 8GB RAM (Any more will be mapped in device trees) - Buttons Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org> Link: https://lore.kernel.org/r/20241209080059.11891-3-umer.uddin@mentallysanemainliners.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2024-12-09arm64: dts: exynos: gs101: allow stable USB phy Vbus detectionAndré Draszik
For the DWC3 core to reliably detect the connected phy's Vbus state, we need to disable phy suspend. Add snps,dis_u2_susphy_quirk snps,dis_u3_susphy_quirk to do that. While at it, also add snps,has-lpm-erratum as this is set downstream which implies that the core was configured with LPM Erratum. We should do the same here. Signed-off-by: André Draszik <andre.draszik@linaro.org> Reviewed-by: Peter Griffin <peter.griffin@linaro.org> Tested-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20241203-gs101-phy-lanes-orientation-dts-v2-3-1412783a6b01@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2024-12-09arm64: dts: exynos: gs101: phy region for exynos5-usbdrd is largerAndré Draszik
Turns out there are some additional registers in the phy region, update the DT accordingly. Signed-off-by: André Draszik <andre.draszik@linaro.org> Reviewed-by: Peter Griffin <peter.griffin@linaro.org> Tested-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20241203-gs101-phy-lanes-orientation-dts-v2-2-1412783a6b01@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2024-12-09x86/resctrl: Use kthread_run_on_cpu()Frederic Weisbecker
Use the proper API instead of open coding it. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Acked-by: Reinette Chatre <reinette.chatre@intel.com> Link: https://lore.kernel.org/r/20240807160228.26206-3-frederic@kernel.org
2024-12-09x86/hyperv: Fix hv tsc page based sched_clock for hibernationNaman Jain
read_hv_sched_clock_tsc() assumes that the Hyper-V clock counter is bigger than the variable hv_sched_clock_offset, which is cached during early boot, but depending on the timing this assumption may be false when a hibernated VM starts again (the clock counter starts from 0 again) and is resuming back (Note: hv_init_tsc_clocksource() is not called during hibernation/resume); consequently, read_hv_sched_clock_tsc() may return a negative integer (which is interpreted as a huge positive integer since the return type is u64) and new kernel messages are prefixed with huge timestamps before read_hv_sched_clock_tsc() grows big enough (which typically takes several seconds). Fix the issue by saving the Hyper-V clock counter just before the suspend, and using it to correct the hv_sched_clock_offset in resume. This makes hv tsc page based sched_clock continuous and ensures that post resume, it starts from where it left off during suspend. Override x86_platform.save_sched_clock_state and x86_platform.restore_sched_clock_state routines to correct this as soon as possible. Note: if Invariant TSC is available, the issue doesn't happen because 1) we don't register read_hv_sched_clock_tsc() for sched clock: See commit e5313f1c5404 ("clocksource/drivers/hyper-v: Rework clocksource and sched clock setup"); 2) the common x86 code adjusts TSC similarly: see __restore_processor_state() -> tsc_verify_tsc_adjust(true) and x86_platform.restore_sched_clock_state(). Cc: stable@vger.kernel.org Fixes: 1349401ff1aa ("clocksource/drivers/hyper-v: Suspend/resume Hyper-V clocksource for hibernation") Co-developed-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Naman Jain <namjain@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Link: https://lore.kernel.org/r/20240917053917.76787-1-namjain@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <20240917053917.76787-1-namjain@linux.microsoft.com>
2024-12-09Merge tag 'perf_urgent_for_v6.13_rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 perf fixes from Borislav Petkov: - Make sure the PEBS buffer is drained before reconfiguring the hardware - Add Arrow Lake U support * tag 'perf_urgent_for_v6.13_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/ds: Unconditionally drain PEBS DS when changing PEBS_DATA_CFG perf/x86/intel: Add Arrow Lake U support
2024-12-09x86: Fix build regression with CONFIG_KEXEC_JUMP enabledDamien Le Moal
Build 6.13-rc12 for x86_64 with gcc 14.2.1 fails with the error: ld: vmlinux.o: in function `virtual_mapped': linux/arch/x86/kernel/relocate_kernel_64.S:249:(.text+0x5915b): undefined reference to `saved_context_gdt_desc' when CONFIG_KEXEC_JUMP is enabled. This was introduced by commit 07fa619f2a40 ("x86/kexec: Restore GDT on return from ::preserve_context kexec") which introduced a use of saved_context_gdt_desc without a declaration for it. Fix that by including asm/asm-offsets.h where saved_context_gdt_desc is defined (indirectly in include/generated/asm-offsets.h which asm/asm-offsets.h includes). Fixes: 07fa619f2a40 ("x86/kexec: Restore GDT on return from ::preserve_context kexec") Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Acked-by: Borislav Petkov (AMD) <bp@alien8.de> Acked-by: David Woodhouse <dwmw@amazon.co.uk> Closes: https://lore.kernel.org/oe-kbuild-all/202411270006.ZyyzpYf8-lkp@intel.com/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-09ARM: dts: stm32: Sort M24256E write-lockable page in DH STM32MP13xx DHCOR SoM DTMarek Vasut
Move the M24256E write-lockable page subnode after RTC subnode in DH STM32MP13xx DHCOR SoM DT to keep the list of nodes sorted by I2C address. No functional change. Fixes: 3f2e7d167307 ("ARM: dts: stm32: Describe M24256E write-lockable page in DH STM32MP13xx DHCOR SoM DT") Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-09ARM: dts: stm32: Increase CPU core voltage on STM32MP13xx DHCOR SoMMarek Vasut
The STM32MP13xx DHCOR DHSBC is populated with STM32MP13xx part capable of 1 GHz operation, increase the CPU core voltage to 1.35 V to make sure the SoC is stable even if the blobs unconditionally force the CPU to 1 GHz operation. It is not possible to make use of CPUfreq on the STM32MP13xx because the SCMI protocol 0x13 is not implemented by upstream OpTee-OS which is the SCMI provider. Fixes: 6331bddce649 ("ARM: dts: stm32: Add support for STM32MP13xx DHCOR SoM and DHSBC board") Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-09ARM: dts: stm32: Deduplicate serial aliases and chosen node for STM32MP15xx ↵Marek Vasut
DHCOM SoM Deduplicate /aliases { serialN = ... } and /chosen node into stm32mp15xx-dhcom-som.dtsi , since the content is identical on all carrier boards using the STM32MP15xx DHCOM SoM. No functional change. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Christoph Niedermaier <cniedermaier@dh-electronics.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-09arm64: dts: st: Enable COMBOPHY on the stm32mp257f-ev1 boardChristian Bruel
Enable the COMBOPHY with external pad clock on stm32mp257f-ev1 board, to be used for the PCIe clock provider. Signed-off-by: Christian Bruel <christian.bruel@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-09arm64: dts: st: Add combophy node on stm32mp251Christian Bruel
Add support for COMBOPHY which is used either by the USB3 and PCIe controller. USB3 or PCIe mode is done with phy_set_mode(). PCIe internal reference clock can be generated from the internal clock source or optionnaly from an external 100Mhz pad. Signed-off-by: Christian Bruel <christian.bruel@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-09arm64: dts: st: add spdifrx support on stm32mp251Olivier Moysan
Add S/PDIFRX support to STM32MP25 SoC family. Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-09arm64: dts: st: add sai support on stm32mp251Olivier Moysan
Add SAI support to STM32MP25 SoC family. Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-12-09arm64: dts: st: add i2s support to stm32mp251Olivier Moysan
Add I2S support to STM32MP25 SoCs. Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>