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* Merge tag 'clk-for-linus' of ↵Linus Torvalds2020-12-2114-14/+472
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "The core framework got some nice improvements this time around. We gained the ability to get struct clk pointers from a struct clk_hw so that clk providers can consume the clks they provide, if they need to do something like that. This has been a long missing part of the clk provider API that will help us move away from exposing a struct clk pointer in the struct clk_hw. Tracepoints are added for the clk_set_rate() "range" functions, similar to the tracepoints we already have for clk_set_rate() and we added a column to debugfs to help developers understand the hardware enable state of clks in case firmware or bootloader state is different than what is expected. Overall the core changes are mostly improving the clk driver writing experience. At the driver level, we have the usual collection of driver updates and new drivers for new SoCs. This time around the Qualcomm folks introduced a good handful of clk drivers for various parts of three or four SoCs. The SiFive folks added a new clk driver for their FU740 SoCs, coming in second on the diffstat and then Atmel AT91 and Amlogic SoCs had lots of work done after that for various new features. One last thing to note in the driver area is that the i.MX driver has gained a new binding to support SCU clks after being on the list for many months. It uses a two cell binding which is sort of rare in clk DT bindings. Beyond that we have the usual set of driver fixes and tweaks that come from more testing and finding out that some configuration was wrong or that a driver could support being built as a module. Summary: Core: - Add some trace points for clk_set_rate() "range" functions - Add hardware enable information to clk_summary debugfs - Replace clk-provider.h with of_clk.h when possible - Add devm variant of clk_notifier_register() - Add clk_hw_get_clk() to generate a struct clk from a struct clk_hw New Drivers: - Bindings for Canaan K210 SoC clks - Support for SiFive FU740 PRCI - Camera clks on Qualcomm SC7180 SoCs - GCC and RPMh clks on Qualcomm SDX55 SoCs - RPMh clks on Qualcomm SM8350 SoCs - LPASS clks on Qualcomm SM8250 SoCs Updates: - DVFS support for AT91 clk driver - Update git repo branch for Renesas clock drivers - Add camera (CSI) and video-in (VIN) clocks on Renesas R-Car V3U - Add RPC (QSPI/HyperFLASH) clocks on Renesas RZ/G2M, RZ/G2N, and RZ/G2E - Stop using __raw_*() I/O accessors in Renesas clk drivers - One more conversion of DT bindings to json-schema - Make i.MX clk-gate2 driver more flexible - New two cell binding for i.MX SCU clks - Drop of_match_ptr() in i.MX8 clk drivers - Add arch dependencies for Rockchip clk drivers - Fix i2s on Rockchip rk3066 - Add MIPI DSI clks on Amlogic axg and g12 SoCs - Support modular builds of Amlogic clk drivers - Fix an Amlogic Video PLL clock dependency - Samsung Kconfig dependencies updates for better compile test coverage - Refactoring of the Samsung PLL clocks driver - Small Tegra driver cleanups - Minor fixes to Ingenic and VC5 clk drivers - Cleanup patches to remove unused variables and plug memory leaks" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits) dt-binding: clock: Document canaan,k210-clk bindings dt-bindings: Add Canaan vendor prefix clk: vc5: Use "idt,voltage-microvolt" instead of "idt,voltage-microvolts" clk: ingenic: Fix divider calculation with div tables clk: sunxi-ng: Make sure divider tables have sentinel clk: s2mps11: Fix a resource leak in error handling paths in the probe function clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9 clk: si5351: Wait for bit clear after PLL reset clk: at91: sam9x60: remove atmel,osc-bypass support clk: at91: sama7g5: register cpu clock clk: at91: clk-master: re-factor master clock clk: at91: sama7g5: do not allow cpu pll to go higher than 1GHz clk: at91: sama7g5: decrease lower limit for MCK0 rate clk: at91: sama7g5: remove mck0 from parent list of other clocks clk: at91: clk-sam9x60-pll: allow runtime changes for pll clk: at91: sama7g5: add 5th divisor for mck0 layout and characteristics clk: at91: clk-master: add 5th divisor for mck master clk: at91: sama7g5: allow SYS and CPU PLLs to be exported and referenced in DT dt-bindings: clock: at91: add sama7g5 pll defines clk: at91: sama7g5: fix compilation error ...
| *-. Merge branches 'clk-ingenic', 'clk-vc5', 'clk-cleanup', 'clk-canaan' and ↵Stephen Boyd2020-12-201-11/+45
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'clk-marvell' into clk-next - Bindings for Canaan K210 SoC clks * clk-ingenic: clk: ingenic: Fix divider calculation with div tables * clk-vc5: clk: vc5: Use "idt,voltage-microvolt" instead of "idt,voltage-microvolts" * clk-cleanup: clk: sunxi-ng: Make sure divider tables have sentinel clk: s2mps11: Fix a resource leak in error handling paths in the probe function clk: bcm: dvp: Add MODULE_DEVICE_TABLE() clk: bcm: dvp: drop a variable that is assigned to only * clk-canaan: dt-binding: clock: Document canaan,k210-clk bindings dt-bindings: Add Canaan vendor prefix * clk-marvell: clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9
| | | * dt-binding: clock: Document canaan,k210-clk bindingsDamien Le Moal2020-12-201-11/+45
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Document the device tree bindings of the Canaan Kendryte K210 SoC clock driver in Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml. The header file include/dt-bindings/clock/k210-clk.h is modified to include the complete list of IDs for all clocks of the SoC. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201220085725.19545-3-damien.lemoal@wdc.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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| *---. \ Merge branches 'clk-ti', 'clk-analog', 'clk-trace', 'clk-at91' and ↵Stephen Boyd2020-12-202-0/+55
| |\ \ \ \ | | | |_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'clk-silabs' into clk-next - Add some trace points for clk_set_rate() "range" functions - DVFS support for AT91 clk driver * clk-ti: clk: ti: omap5: Fix reboot DPLL lock failure when using ABE TIMERs clk: ti: Fix memleak in ti_fapll_synth_setup * clk-analog: clk: axi-clkgen: move the OF table at the bottom of the file clk: axi-clkgen: wrap limits in a struct and keep copy on the state object dt-bindings: clock: adi,axi-clkgen: convert old binding to yaml format * clk-trace: clk: Trace clk_set_rate() "range" functions * clk-at91: clk: at91: sam9x60: remove atmel,osc-bypass support clk: at91: sama7g5: register cpu clock clk: at91: clk-master: re-factor master clock clk: at91: sama7g5: do not allow cpu pll to go higher than 1GHz clk: at91: sama7g5: decrease lower limit for MCK0 rate clk: at91: sama7g5: remove mck0 from parent list of other clocks clk: at91: clk-sam9x60-pll: allow runtime changes for pll clk: at91: sama7g5: add 5th divisor for mck0 layout and characteristics clk: at91: clk-master: add 5th divisor for mck master clk: at91: sama7g5: allow SYS and CPU PLLs to be exported and referenced in DT dt-bindings: clock: at91: add sama7g5 pll defines clk: at91: sama7g5: fix compilation error * clk-silabs: clk: si5351: Wait for bit clear after PLL reset
| | | | * clk: at91: sama7g5: register cpu clockClaudiu Beznea2020-12-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Register CPU clock as being the master clock prescaler. This would be used by DVFS. The block schema of SAMA7G5's PMC contains also a divider between master clock prescaler and CPU (PMC_CPU_RATIO.RATIO) but the frequencies supported by SAMA7G5 could be directly received from CPUPLL + master clock prescaler and the extra divider would do no work in case it would be enabled. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/1605800597-16720-12-git-send-email-claudiu.beznea@microchip.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | | | * dt-bindings: clock: at91: add sama7g5 pll definesEugen Hristev2020-12-191-0/+10
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add SAMA7G5 specific PLL defines to be referenced in a phandle as a PMC_TYPE_CORE clock. Suggested-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> [claudiu.beznea@microchip.com: adapt comit message, adapt sama7g5.c] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/1605800597-16720-3-git-send-email-claudiu.beznea@microchip.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | | * clk: Trace clk_set_rate() "range" functionsMaxime Ripard2020-12-171-0/+44
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | The clk_set_rate "range" functions don't have any tracepoints even though it might be useful. Add some. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20201207105050.2096917-1-maxime@cerno.tech [sboyd@kernel.org: Reword commit text] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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| *-. \ Merge branches 'clk-tegra', 'clk-imx', 'clk-sifive', 'clk-mediatek' and ↵Stephen Boyd2020-12-201-0/+23
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'clk-summary' into clk-next - Support for SiFive FU740 PRCI - Add hardware enable information to clk_summary debugfs * clk-tegra: clk: tegra: Fix duplicated SE clock entry clk: tegra: bpmp: Clamp clock rates on requests clk: tegra: Do not return 0 on failure * clk-imx: (24 commits) clk: imx: scu: remove the calling of device_is_bound clk: imx: scu: Make pd_np with static keyword clk: imx8mq: drop of_match_ptr from of_device_id table clk: imx8mp: drop of_match_ptr from of_device_id table clk: imx8mn: drop of_match_ptr from of_device_id table clk: imx8mm: drop of_match_ptr from of_device_id table clk: imx: gate2: Remove unused variable ret clk: imx: gate2: Add locking in is_enabled op clk: imx: gate2: Add cgr_mask for more flexible number of control bits clk: imx: gate2: Check if clock is enabled against cgr_val clk: imx: gate2: Keep the register writing in on place clk: imx: gate2: Remove the IMX_CLK_GATE2_SINGLE_BIT special case clk: imx: scu: fix build break when compiled as modules clk: imx: remove redundant assignment to pointer np clk: imx: remove unneeded semicolon clk: imx: lpcg: add suspend/resume support clk: imx: clk-imx8qxp-lpcg: add runtime pm support clk: imx: lpcg: allow lpcg clk to take device pointer clk: imx: imx8qxp-lpcg: add parsing clocks from device tree clk: imx: scu: add suspend/resume support ... * clk-sifive: clk: sifive: Add clock enable and disable ops clk: sifive: Fix the wrong bit field shift clk: sifive: Add a driver for the SiFive FU740 PRCI IP block clk: sifive: Use common name for prci configuration clk: sifive: Extract prci core to common base dt-bindings: fu740: prci: add YAML documentation for the FU740 PRCI * clk-mediatek: clk: mediatek: Make mtk_clk_register_mux() a static function * clk-summary: clk: Add hardware-enable column to clk summary
| | | * clk: sifive: Add a driver for the SiFive FU740 PRCI IP blockZong Li2020-12-161-0/+23
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add driver code for the SiFive FU740 PRCI IP block. This IP block handles reset and clock control for the SiFive FU740 device and implements SoC-level clock tree controls and dividers. The link of unmatched as follow, and the U740-C000 manual would be present in the same page as soon. https://www.sifive.com/boards/hifive-unmatched This driver contains bug fixes and contributions from Henry Styles <hes@sifive.com> Erik Danie <erik.danie@sifive.com> Pragnesh Patel <pragnesh.patel@sifive.com> Signed-off-by: Zong Li <zong.li@sifive.com> Reviewed-by: Pragnesh Patel <Pragnesh.patel@sifive.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Henry Styles <hes@sifive.com> Cc: Erik Danie <erik.danie@sifive.com> Cc: Pragnesh Patel <pragnesh.patel@sifive.com> Link: https://lore.kernel.org/r/20201209094916.17383-4-zong.li@sifive.com [sboyd@kernel.org: Include header to silence sparse] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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| *---. \ Merge branches 'clk-amlogic', 'clk-rockchip', 'clk-of', 'clk-freescale' and ↵Stephen Boyd2020-12-204-0/+76
| |\ \ \ \ | | | | |/ | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'clk-unused' into clk-next - Replace clk-provider.h with of_clk.h when possible * clk-amlogic: clk: meson: g12a: add MIPI DSI Host Pixel Clock dt-bindings: clk: g12a-clkc: add DSI Pixel clock bindings clk: meson: enable building as modules clk: meson: Kconfig: fix dependency for G12A clk: meson: axg: add MIPI DSI Host clock clk: meson: axg: add Video Clocks dt-bindings: clk: axg-clkc: add MIPI DSI Host clock binding dt-bindings: clk: axg-clkc: add Video Clocks * clk-rockchip: clk: rockchip: fix i2s gate bits on rk3066 and rk3188 clk: rockchip: add CLK_SET_RATE_PARENT to sclk for rk3066a i2s and uart clocks clk: rockchip: Remove redundant null check before clk_prepare_enable clk: rockchip: Add appropriate arch dependencies * clk-of: xtensa: Replace <linux/clk-provider.h> by <linux/of_clk.h> sh: boards: Replace <linux/clk-provider.h> by <linux/of_clk.h> * clk-freescale: clk: fsl-flexspi: new driver dt-bindings: clock: document the fsl-flexspi-clk device clk: divider: add devm_clk_hw_register_divider_table() clk: qoriq: provide constants for the type clk: fsl-sai: use devm_clk_hw_register_composite_pdata() clk: composite: add devm_clk_hw_register_composite_pdata() clk: fsl-sai: fix memory leak clk: qoriq: Add platform dependencies * clk-unused: clk: scpi: mark scpi_clk_match as maybe unused clk: pwm: drop of_match_ptr from of_device_id table
| | | | * clk: divider: add devm_clk_hw_register_divider_table()Michael Walle2020-12-071-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will simplify drivers which would only unregister the clk in their remove() op. Signed-off-by: Michael Walle <michael@walle.cc> Link: https://lore.kernel.org/r/20201108185113.31377-6-michael@walle.cc Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | | | * clk: qoriq: provide constants for the typeMichael Walle2020-12-071-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To avoid future mistakes in the device tree for the clockgen module, add constants for the clockgen subtype as well as a macro for the PLL divider. Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201108185113.31377-4-michael@walle.cc Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | | | * clk: composite: add devm_clk_hw_register_composite_pdata()Michael Walle2020-12-071-0/+7
| | | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will simplify drivers which would only unregister the clk in their remove() op. Signed-off-by: Michael Walle <michael@walle.cc> Link: https://lore.kernel.org/r/20201105192746.19564-3-michael@walle.cc Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | Merge branch 'v5.11/headers' into v5.11/driversJerome Brunet2020-11-261-0/+2
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| | | * | dt-bindings: clk: g12a-clkc: add DSI Pixel clock bindingsNeil Armstrong2020-11-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the MIPI DSI Host Pixel Clock bindings. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201126141600.2084586-2-narmstrong@baylibre.com
| | * | | Merge branch 'v5.11/headers' into integJerome Brunet2020-11-231-0/+25
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| *-----. \ \ \ Merge branches 'clk-doc', 'clk-qcom', 'clk-simplify', 'clk-hw', ↵Stephen Boyd2020-12-208-2/+297
| |\ \ \ \ \ \ \ | | | | | |/ / / | | | | |/| | / | | | | |_|_|/ | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'clk-renesas' and 'clk-samsung' into clk-next - Camera clks on Qualcomm SC7180 SoCs - GCC and RPMh clks on Qualcomm SDX55 SoCs - RPMh clks on Qualcomm SM8350 SoCs - LPASS clks on Qualcomm SM8250 SoCs - Add devm variant of clk_notifier_register() - Add clk_hw_get_clk() to generate a struct clk from a struct clk_hw * clk-doc: clk: fix a kernel-doc markup * clk-qcom: (27 commits) clk: qcom: rpmh: add support for SM8350 rpmh clocks dt-bindings: clock: Add RPMHCC bindings for SM8350 clk: qcom: lpasscc: Introduce pm autosuspend for SC7180 clk: qcom: gcc-sc7180: Add 50 MHz clock rate for SDC2 clk: qcom: gcc-sc7180: Use floor ops for sdcc clks clk: qcom: Add GDSC support for SDX55 GCC dt-bindings: clock: Add GDSC in SDX55 GCC clk: qcom: Add support for SDX55 RPMh clocks dt-bindings: clock: Introduce RPMHCC bindings for SDX55 clk: qcom: Add SDX55 GCC support dt-bindings: clock: Add SDX55 GCC clock bindings clk: qcom: Kconfig: Fix spelling mistake "dyanmic" -> "dynamic" clk: qcom: rpmh: Add CE clock on sdm845. dt-bindings: clock: Add entry for crypto engine RPMH clock resource clk: qcom: dispcc-sm8250: handle MMCX power domain clk: qcom: camcc-sc7180: Use runtime PM ops instead of clk ones clk: qcom: lpass-sc7180: Clean up on error in lpass_sc7180_init() clk: qcom: Add support to LPASS AON_CC Glitch Free Mux clocks clk: qcom: Add support to LPASS AUDIO_CC Glitch Free Mux clocks dt-bindings: clock: Add support for LPASS Always ON Controller ... * clk-simplify: clk: remove unneeded dead-store initialization * clk-hw: clk: meson: g12: use devm variant to register notifiers clk: add devm variant of clk_notifier_register clk: meson: g12: drop use of __clk_lookup() clk: add api to get clk consumer from clk_hw clk: avoid devm_clk_release name clash * clk-renesas: dt-bindings: clock: renesas: rcar-usb2-clock-sel: Convert bindings to json-schema clk: renesas: sh73a0: Stop using __raw_*() I/O accessors clk: renesas: r8a774c0: Add RPC clocks clk: renesas: r8a779a0: Fix R and OSC clocks clk: renesas: cpg-mssr: fix kerneldoc of cpg_mssr_priv clk: renesas: rcar-usb2-clock-sel: Replace devm_reset_control_array_get() clk: renesas: r8a774b1: Add RPC clocks clk: renesas: r8a774a1: Add RPC clocks clk: renesas: r8a779a0: Add VIN clocks clk: renesas: r8a779a0: Add CSI4[0-3] clocks MAINTAINERS: Update git repo for Renesas clock drivers clk: renesas: r8a779a0: Make rcar_r8a779a0_cpg_clk_register() static clk: renesas: rcar-gen3: Remove stp_ck handling for SDHI * clk-samsung: clk: samsung: Prevent potential endless loop in the PLL ops clk: samsung: Allow compile testing of Exynos, S3C64xx and S5Pv210
| | | | | * | clk: samsung: Allow compile testing of Exynos, S3C64xx and S5Pv210Krzysztof Kozlowski2020-11-231-2/+2
| | | | |/ / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So far all Exynos, S3C64xx and S5Pv210 clock units were selected by respective SOC/ARCH Kconfig option. On a kernel built for selected SoCs, this allowed to build only limited set of matching clock drivers. However compile testing was not possible in such case as Makefile object depends on SOC/ARCH option. Add separate Kconfig options for each of them to be able to compile test. Link: https://lore.kernel.org/r/20201119164509.754851-1-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
| | | | * | clk: meson: g12: use devm variant to register notifiersJerome Brunet2020-11-141-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Until now, nothing was done to unregister the dvfs clock notifiers of the Amlogic g12 SoC family. This is not great but this driver was not really expected to be unloaded. With the ongoing effort to build everything as module for this platform, this needs to be cleanly handled. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201021163847.595189-3-jbrunet@baylibre.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | | | * | clk: add devm variant of clk_notifier_registerJerome Brunet2020-11-141-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a memory managed variant of clk_notifier_register() to make life easier on clock consumers using notifiers Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201021163847.595189-2-jbrunet@baylibre.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | | | * | clk: add api to get clk consumer from clk_hwJerome Brunet2020-11-141-0/+5
| | | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clk_register() is deprecated. Using 'clk' member of struct clk_hw is discouraged. With this constraint, it is difficult for driver to register clocks using the clk_hw API and then use the clock with the consumer API This adds a simple helper, clk_hw_get_clk(), to get a struct clk from a struct clk_hw. Like other clk_get() variant, each call to this helper must be balanced with a call to clk_put(). To make life easier on the consumers, a memory managed version is provided as well. Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201021162147.563655-3-jbrunet@baylibre.com Tested-by: Kevin Hilman <khilman@baylibre.com> [sboyd@kernel.org: Fix kernel-doc] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | | clk: qcom: rpmh: add support for SM8350 rpmh clocksVinod Koul2020-12-101-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the RPMH clocks present in SM8350 SoC Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20201208064702.3654324-3-vkoul@kernel.org [sboyd@kernel.org: Move sdx55 to the right place] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | | dt-bindings: clock: Add GDSC in SDX55 GCCManivannan Sadhasivam2020-12-071-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add GDSC instances in SDX55 GCC block. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20201126072844.35370-6-manivannan.sadhasivam@linaro.org Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | | dt-bindings: clock: Introduce RPMHCC bindings for SDX55Vinod Koul2020-12-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add compatible for SDX55 RPMHCC and DT include. Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201126072844.35370-4-manivannan.sadhasivam@linaro.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | | dt-bindings: clock: Add SDX55 GCC clock bindingsVinod Koul2020-12-071-0/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add device tree bindings for global clock controller on SDX55 SoCs. Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201126072844.35370-2-manivannan.sadhasivam@linaro.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | | dt-bindings: clock: Add entry for crypto engine RPMH clock resourceThara Gopinath2020-11-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add clock id forc CE clock resource which is required to bring up the crypto engine on sdm845. Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org> Link: https://lore.kernel.org/r/20201119155233.3974286-2-thara.gopinath@linaro.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | | dt-bindings: clock: Add support for LPASS Always ON ControllerSrinivas Kandagatla2020-11-041-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Always ON Clock controller is a block inside LPASS which controls 1 Glitch free muxes to LPASS codec Macros. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20201026120221.18984-3-srinivas.kandagatla@linaro.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | | dt-bindings: clock: Add support for LPASS Audio Clock ControllerSrinivas Kandagatla2020-11-041-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Audio Clock controller is a block inside LPASS which controls 2 Glitch free muxes to LPASS codec Macros. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20201026120221.18984-2-srinivas.kandagatla@linaro.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| | * | | dt-bindings: clock: Add YAML schemas for the QCOM Camera clock bindings.Taniya Das2020-11-041-0/+121
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Camera Subsystem clock provider have a bunch of generic properties that are needed in a device tree. Add a YAML schemas for those. Add clock ids for camera clocks which are required to bring the camera subsystem out of reset. Signed-off-by: Taniya Das <tdas@codeaurora.org> Link: https://lore.kernel.org/r/1602873815-1677-4-git-send-email-tdas@codeaurora.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| * / / clk: fix a kernel-doc markupMauro Carvalho Chehab2020-11-041-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | clk_get_duty_cycle -> clk_get_scaled_duty_cycle Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/b2336f3f3cdfe6e1a2d3a7a056ab7ccc7a81b945.1603469755.git.mchehab+huawei@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* | | Merge tag '9p-for-5.11-rc1' of git://github.com/martinetd/linuxLinus Torvalds2020-12-211-0/+7
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull 9p update from Dominique Martinet: - fix long-standing limitation on open-unlink-fop pattern - add refcount to p9_fid (fixes the above and will allow for more cleanups and simplifications in the future) * tag '9p-for-5.11-rc1' of git://github.com/martinetd/linux: 9p: Remove unnecessary IS_ERR() check 9p: Uninitialized variable in v9fs_writeback_fid() 9p: Fix writeback fid incorrectly being attached to dentry 9p: apply review requests for fid refcounting 9p: add refcount to p9_fid struct fs/9p: search open fids first fs/9p: track open fids fs/9p: fix create-unlink-getattr idiom
| * | | 9p: apply review requests for fid refcountingDominique Martinet2020-11-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix style issues in parent commit ("apply review requests for fid refcounting"), no functional change. Link: http://lkml.kernel.org/r/1605802012-31133-2-git-send-email-asmadeus@codewreck.org Fixes: 6636b6dcc3db ("9p: add refcount to p9_fid struct") Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
| * | | 9p: add refcount to p9_fid structJianyong Wu2020-11-191-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix race issue in fid contention. Eric's and Greg's patch offer a mechanism to fix open-unlink-f*syscall bug in 9p. But there is race issue in fid parallel accesses. As Greg's patch stores all of fids from opened files into according inode, so all the lookup fid ops can retrieve fid from inode preferentially. But there is no mechanism to handle the fid contention issue. For example, there are two threads get the same fid in the same time and one of them clunk the fid before the other thread ready to discard the fid. In this scenario, it will lead to some fatal problems, even kernel core dump. I introduce a mechanism to fix this race issue. A counter field introduced into p9_fid struct to store the reference counter to the fid. When a fid is allocated from the inode or dentry, the counter will increase, and will decrease at the end of its occupation. It is guaranteed that the fid won't be clunked before the reference counter go down to 0, then we can avoid the clunked fid to be used. tests: race issue test from the old test case: for file in {01..50}; do touch f.${file}; done seq 1 1000 | xargs -n 1 -P 50 -I{} cat f.* > /dev/null open-unlink-f*syscall test: I have tested for f*syscall include: ftruncate fstat fchown fchmod faccessat. Link: http://lkml.kernel.org/r/20200923141146.90046-5-jianyong.wu@arm.com Fixes: 478ba09edc1f ("fs/9p: search open fids first") Signed-off-by: Jianyong Wu <jianyong.wu@arm.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
| * | | fs/9p: track open fidsGreg Kurz2020-11-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds accounting of open fids in a list hanging off the i_private field of the corresponding inode. This allows faster lookups compared to searching the full 9p client list. The lookup code is modified accordingly. Link: http://lkml.kernel.org/r/20200923141146.90046-3-jianyong.wu@arm.com Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Jianyong Wu <jianyong.wu@arm.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
* | | | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2020-12-2010-7/+271
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull KVM updates from Paolo Bonzini: "Much x86 work was pushed out to 5.12, but ARM more than made up for it. ARM: - PSCI relay at EL2 when "protected KVM" is enabled - New exception injection code - Simplification of AArch32 system register handling - Fix PMU accesses when no PMU is enabled - Expose CSV3 on non-Meltdown hosts - Cache hierarchy discovery fixes - PV steal-time cleanups - Allow function pointers at EL2 - Various host EL2 entry cleanups - Simplification of the EL2 vector allocation s390: - memcg accouting for s390 specific parts of kvm and gmap - selftest for diag318 - new kvm_stat for when async_pf falls back to sync x86: - Tracepoints for the new pagetable code from 5.10 - Catch VFIO and KVM irqfd events before userspace - Reporting dirty pages to userspace with a ring buffer - SEV-ES host support - Nested VMX support for wait-for-SIPI activity state - New feature flag (AVX512 FP16) - New system ioctl to report Hyper-V-compatible paravirtualization features Generic: - Selftest improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits) KVM: SVM: fix 32-bit compilation KVM: SVM: Add AP_JUMP_TABLE support in prep for AP booting KVM: SVM: Provide support to launch and run an SEV-ES guest KVM: SVM: Provide an updated VMRUN invocation for SEV-ES guests KVM: SVM: Provide support for SEV-ES vCPU loading KVM: SVM: Provide support for SEV-ES vCPU creation/loading KVM: SVM: Update ASID allocation to support SEV-ES guests KVM: SVM: Set the encryption mask for the SVM host save area KVM: SVM: Add NMI support for an SEV-ES guest KVM: SVM: Guest FPU state save/restore not needed for SEV-ES guest KVM: SVM: Do not report support for SMM for an SEV-ES guest KVM: x86: Update __get_sregs() / __set_sregs() to support SEV-ES KVM: SVM: Add support for CR8 write traps for an SEV-ES guest KVM: SVM: Add support for CR4 write traps for an SEV-ES guest KVM: SVM: Add support for CR0 write traps for an SEV-ES guest KVM: SVM: Add support for EFER write traps for an SEV-ES guest KVM: SVM: Support string IO operations for an SEV-ES guest KVM: SVM: Support MMIO for an SEV-ES guest KVM: SVM: Create trace events for VMGEXIT MSR protocol processing KVM: SVM: Create trace events for VMGEXIT processing ...
| * \ \ \ Merge tag 'kvmarm-5.11' of ↵Paolo Bonzini2020-12-1515-117/+138
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for Linux 5.11 - PSCI relay at EL2 when "protected KVM" is enabled - New exception injection code - Simplification of AArch32 system register handling - Fix PMU accesses when no PMU is enabled - Expose CSV3 on non-Meltdown hosts - Cache hierarchy discovery fixes - PV steal-time cleanups - Allow function pointers at EL2 - Various host EL2 entry cleanups - Simplification of the EL2 vector allocation
| | * \ \ \ Merge remote-tracking branch 'origin/kvm-arm64/psci-relay' into ↵Marc Zyngier2020-12-091-0/+9
| | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kvmarm-master/next Signed-off-by: Marc Zyngier <maz@kernel.org>
| | | * | | | psci: Add accessor for psci_0_1_function_idsDavid Brazdil2020-12-041-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make it possible to retrieve a copy of the psci_0_1_function_ids struct. This is useful for KVM if it is configured to intercept host's PSCI SMCs. Signed-off-by: David Brazdil <dbrazdil@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20201202184122.26046-7-dbrazdil@google.com
| | * | | | | Merge remote-tracking branch 'origin/kvm-arm64/misc-5.11' into ↵Marc Zyngier2020-12-042-0/+5
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kvmarm-master/queue Signed-off-by: Marc Zyngier <maz@kernel.org>
| | | * | | | | KVM: arm64: Delay the polling of the GICR_VPENDBASER.Dirty bitShenming Lu2020-11-302-0/+5
| | | |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to reduce the impact of the VPT parsing happening on the GIC, we can split the vcpu reseidency in two phases: - programming GICR_VPENDBASER: this still happens in vcpu_load() - checking for the VPT parsing to be complete: this can happen on vcpu entry (in kvm_vgic_flush_hwstate()) This allows the GIC and the CPU to work in parallel, rewmoving some of the entry overhead. Suggested-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Shenming Lu <lushenming@huawei.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20201128141857.983-3-lushenming@huawei.com
| | * | | | | Merge branch 'kvm-arm64/pmu-undef' into kvmarm-master/nextMarc Zyngier2020-11-271-3/+0
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Marc Zyngier <maz@kernel.org>
| | | * | | | | KVM: arm64: Get rid of the PMU ready stateMarc Zyngier2020-11-271-3/+0
| | | |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PMU ready state has no user left. Goodbye. Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
| * | | | | | KVM: Don't allocate dirty bitmap if dirty ring is enabledPeter Xu2020-11-151-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because kvm dirty rings and kvm dirty log is used in an exclusive way, Let's avoid creating the dirty_bitmap when kvm dirty ring is enabled. At the meantime, since the dirty_bitmap will be conditionally created now, we can't use it as a sign of "whether this memory slot enabled dirty tracking". Change users like that to check against the kvm memory slot flags. Note that there still can be chances where the kvm memory slot got its dirty_bitmap allocated, _if_ the memory slots are created before enabling of the dirty rings and at the same time with the dirty tracking capability enabled, they'll still with the dirty_bitmap. However it should not hurt much (e.g., the bitmaps will always be freed if they are there), and the real users normally won't trigger this because dirty bit tracking flag should in most cases only be applied to kvm slots only before migration starts, that should be far latter than kvm initializes (VM starts). Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201001012226.5868-1-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * | | | | | KVM: X86: Implement ring-based dirty memory trackingPeter Xu2020-11-154-0/+232
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is heavily based on previous work from Lei Cao <lei.cao@stratus.com> and Paolo Bonzini <pbonzini@redhat.com>. [1] KVM currently uses large bitmaps to track dirty memory. These bitmaps are copied to userspace when userspace queries KVM for its dirty page information. The use of bitmaps is mostly sufficient for live migration, as large parts of memory are be dirtied from one log-dirty pass to another. However, in a checkpointing system, the number of dirty pages is small and in fact it is often bounded---the VM is paused when it has dirtied a pre-defined number of pages. Traversing a large, sparsely populated bitmap to find set bits is time-consuming, as is copying the bitmap to user-space. A similar issue will be there for live migration when the guest memory is huge while the page dirty procedure is trivial. In that case for each dirty sync we need to pull the whole dirty bitmap to userspace and analyse every bit even if it's mostly zeros. The preferred data structure for above scenarios is a dense list of guest frame numbers (GFN). This patch series stores the dirty list in kernel memory that can be memory mapped into userspace to allow speedy harvesting. This patch enables dirty ring for X86 only. However it should be easily extended to other archs as well. [1] https://patchwork.kernel.org/patch/10471409/ Signed-off-by: Lei Cao <lei.cao@stratus.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201001012222.5767-1-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * | | | | | KVM: Pass in kvm pointer into mark_page_dirty_in_slot()Peter Xu2020-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The context will be needed to implement the kvm dirty ring. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201001012044.5151-5-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * | | | | | KVM: remove kvm_clear_guest_pagePaolo Bonzini2020-11-151-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kvm_clear_guest_page is not used anymore after "KVM: X86: Don't track dirty for KVM_SET_[TSS_ADDR|IDENTITY_MAP_ADDR]", except from kvm_clear_guest. We can just inline it in its sole user. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * | | | | | KVM: x86: hyper-v: allow KVM_GET_SUPPORTED_HV_CPUID as a system ioctlVitaly Kuznetsov2020-11-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | KVM_GET_SUPPORTED_HV_CPUID is a vCPU ioctl but its output is now independent from vCPU and in some cases VMMs may want to use it as a system ioctl instead. In particular, QEMU doesn CPU feature expansion before any vCPU gets created so KVM_GET_SUPPORTED_HV_CPUID can't be used. Convert KVM_GET_SUPPORTED_HV_CPUID to 'dual' system/vCPU ioctl with the same meaning. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200929150944.1235688-2-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * | | | | | eventfd: Export eventfd_ctx_do_read()David Woodhouse2020-11-151-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Where events are consumed in the kernel, for example by KVM's irqfd_wakeup() and VFIO's virqfd_wakeup(), they currently lack a mechanism to drain the eventfd's counter. Since the wait queue is already locked while the wakeup functions are invoked, all they really need to do is call eventfd_ctx_do_read(). Add a check for the lock, and export it for them. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20201027135523.646811-2-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * | | | | | sched/wait: Add add_wait_queue_priority()David Woodhouse2020-11-151-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows an exclusive wait_queue_entry to be added at the head of the queue, instead of the tail as normal. Thus, it gets to consume events first without allowing non-exclusive waiters to be woken at all. The (first) intended use is for KVM IRQFD, which currently has inconsistent behaviour depending on whether posted interrupts are available or not. If they are, KVM will bypass the eventfd completely and deliver interrupts directly to the appropriate vCPU. If not, events are delivered through the eventfd and userspace will receive them when polling on the eventfd. By using add_wait_queue_priority(), KVM will be able to consistently consume events within the kernel without accidentally exposing them to userspace when they're supposed to be bypassed. This, in turn, means that userspace doesn't have to jump through hoops to avoid listening on the erroneously noisy eventfd and injecting duplicate interrupts. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20201027143944.648769-2-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | | | | | | Merge tag 'rtc-5.11' of ↵Linus Torvalds2020-12-201-15/+7
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Subsystem: - Remove nvram ABI. There was no complaints about the deprecation for the last 3 years. - Improve RTC device allocation and registration - Now available for ARCH=um Drivers: - at91rm9200: correction and sam9x60 support - ds1307: improve ACPI support - mxc: now DT only - pcf2127: watchdog support now needs the reset-source property - pcf8523: set range - rx6110: i2c support" * tag 'rtc-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (43 commits) rtc: pcf2127: only use watchdog when explicitly available dt-bindings: rtc: add reset-source property rtc: fix RTC removal rtc: s3c: Remove dead code related to periodic tick handling rtc: s3c: Disable all enable (RTC, tick) bits in the probe rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time rtc: test: remove debug message rtc: mxc{,_v2}: enable COMPILE_TEST rtc: enable RTC framework on ARCH=um rtc: pcf8523: use BIT rtc: pcf8523: set range rtc: pcf8523: switch to devm_rtc_allocate_device rtc: destroy mutex when releasing the device rtc: shrink devm_rtc_allocate_device() rtc: rework rtc_register_device() resource management rtc: nvmem: emit an error message when nvmem registration fails rtc: add devm_ prefix to rtc_nvmem_register() rtc: nvmem: remove nvram ABI Documentation: list RTC devres helpers in devres.rst rtc: omap: use devm_pinctrl_register() ...
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 08:28:38 +0000