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1009aa1205
This tag contains some major improvements to the RISC-V port, including the necessary interrupt controller and timer support to actually make it to userspace. Support for three devices has been added: * Support for the ISA-mandated timers on RISC-V systems. * Support for the ISA-mandated first-level interrupt controller on RISC-V systems, which is handled as part of our core arch code because it's very small and tightly tied to the ISA. * Support for SiFive's platform-level interrupt controller, which talks to the actual devices. In addition to these new devices, there are a handful of cleanups all over the RISC-V tree: * Build fixes for various configurations * A fix to the vDSO build's makefile so it respects CFLAGS. * The addition of __lshrti3, a libgcc derived function necessary for some 32-bit configurations. * !SMP && PERF_EVENTS * Cleanups to the arch code to remove the remnants of old versions of the drivers that were just properly submitted. * Some dead code from the timer driver, most of which wasn't ever even compiled. * Cleanups of some interrupt #defines, which are now local to the interrupt handling code. * Fixes to ptrace(), which while not being sufficient to fully make GDB work are at least sufficient to get simple GDB tasks to work. * Early printk support via RISC-V's architecturally mandated SBI console device. * A fix to our early debug trap handler to ensure it's always aligned. These patches have all been through a fairly extensive review process, but as this enables a whole pile of functionality (ie, userspace) I'm confident we'll need to submit a few more patches. The only concrete issues I know about are the sys_riscv_flush_icache patches, but as I managed to screw those up on Friday I figured it'd be best to let them bake another week. This tag boots a Fedora root filesystem on QEMU's master branch for me, and before this morning's rebase (from 4.18-rc8 to 4.18) it booted on the HiFive Unleashed. Thanks to Christoph Hellwig and the other guys at WD for getting the new drivers in shape! -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEAM520YNJYN/OiG3470yhUCzLq0EFAltx3HcTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRDvTKFQLMurQc7nEACh8NCRLyXHOAQefomb+BUx+DJXweau lhTiPexB7+3ZAT6FvL8BgHFu3qMsgZ8iI5pxIz7tap2WRTlakRABLes7c3xQPI4a 3rDbZFE78lQDNY0Kj8iUpvYr0aOfMcC8aoD30qQHaWZVgYZvaZGD3Sar6VbTyaNe 5F5lRaiAtrMmHNio/fXQvnMP83nc1Nxzc4q8VeRjmufc0CvGZUs3L2ZRVx1phwav VedQFsrNHlcyulBv9rQXzaeyvVn+FNKlu4c/9sI6xsGZofGZjOqub1vjURuEfTc5 4AtdFMN0Xb2TYCK277Fr/FY/VEHGXCV+3hGc2U62hnpBtRgGERn7gQUimCJD5b+V gpXZGjtLvTXp9a4N6+ThC/oqvr72aLzInNap95MFK5xSMx/4AdCG7u63sd2qLtkL tlYho+Hd50ImIlUCTs6pfjzmgTMLW2huVJhDNx2lt9OUvNNYjTc4mjEK2WK8DUC7 aUMcHYZMn3hJFNwvd5xTxLPua4ahhhYTyfzHwnMiND4ZjdUnxtrKNj46HjSPqMp9 mgKOkv3G0a021gYODI/dweYI1SV2my814fQHZW4rcFYM2lLwrn2cPMMGezAJF9sR mbLHW6ZxJrtd9m+RZsJB9Z3QnBs68yIqTOBPRRFM5egwt9s9y+19HnBDVe1hj8/j OpmZ/qXCqQt+jA== =PfnC -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-4.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux Pull RISC-V updates from Palmer Dabbelt: "This contains some major improvements to the RISC-V port, including the necessary interrupt controller and timer support to actually make it to userspace. Support for three devices has been added: - the ISA-mandated timers on RISC-V systems. - the ISA-mandated first-level interrupt controller on RISC-V systems, which is handled as part of our core arch code because it's very small and tightly tied to the ISA. - SiFive's platform-level interrupt controller, which talks to the actual devices. In addition to these new devices, there are a handful of cleanups all over the RISC-V tree: - build fixes for various configurations: * A fix to the vDSO build's makefile so it respects CFLAGS. * The addition of __lshrti3, a libgcc derived function necessary for some 32-bit configurations. * !SMP && PERF_EVENTS - Cleanups to the arch code to remove the remnants of old versions of the drivers that were just properly submitted. * Some dead code from the timer driver, most of which wasn't ever even compiled. * Cleanups of some interrupt #defines, which are now local to the interrupt handling code. - Fixes to ptrace(), which while not being sufficient to fully make GDB work are at least sufficient to get simple GDB tasks to work. - Early printk support via RISC-V's architecturally mandated SBI console device. - A fix to our early debug trap handler to ensure it's always aligned. These patches have all been through a fairly extensive review process, but as this enables a whole pile of functionality (ie, userspace) I'm confident we'll need to submit a few more patches. The only concrete issues I know about are the sys_riscv_flush_icache patches, but as I managed to screw those up on Friday I figured it'd be best to let them bake another week. This tag boots a Fedora root filesystem on QEMU's master branch for me, and before this morning's rebase (from 4.18-rc8 to 4.18) it booted on the HiFive Unleashed. Thanks to Christoph Hellwig and the other guys at WD for getting the new drivers in shape!" * tag 'riscv-for-linus-4.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: dt-bindings: interrupt-controller: SiFive Plaform Level Interrupt Controller dt-bindings: interrupt-controller: RISC-V local interrupt controller RISC-V: Fix !CONFIG_SMP compilation error irqchip: add a SiFive PLIC driver RISC-V: Add the directive for alignment of stvec's value clocksource: new RISC-V SBI timer driver RISC-V: implement low-level interrupt handling RISC-V: add a definition for the SIE SEIE bit RISC-V: remove INTERRUPT_CAUSE_* defines from asm/irq.h RISC-V: simplify software interrupt / IPI code RISC-V: remove timer leftovers RISC-V: Add early printk support via the SBI console RISC-V: Don't increment sepc after breakpoint. RISC-V: implement __lshrti3. RISC-V: Use KBUILD_CFLAGS instead of KCFLAGS when building the vDSO |
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.. | ||
abilis,tb10x-ictl.txt | ||
al,alpine-msix.txt | ||
allwinner,sun4i-ic.txt | ||
allwinner,sunxi-nmi.txt | ||
amlogic,meson-gpio-intc.txt | ||
andestech,ativic32.txt | ||
arm,gic-v3.txt | ||
arm,gic.txt | ||
arm,nvic.txt | ||
arm,versatile-fpga-irq.txt | ||
arm,vic.txt | ||
aspeed,ast2400-i2c-ic.txt | ||
aspeed,ast2400-vic.txt | ||
atmel,aic.txt | ||
brcm,bcm2835-armctrl-ic.txt | ||
brcm,bcm2836-l1-intc.txt | ||
brcm,bcm3380-l2-intc.txt | ||
brcm,bcm6345-l1-intc.txt | ||
brcm,bcm7038-l1-intc.txt | ||
brcm,bcm7120-l2-intc.txt | ||
brcm,l2-intc.txt | ||
cdns,xtensa-mx.txt | ||
cdns,xtensa-pic.txt | ||
cirrus,clps711x-intc.txt | ||
digicolor-ic.txt | ||
ezchip,nps400-ic.txt | ||
faraday,ftintc010.txt | ||
fsl,ls-scfg-msi.txt | ||
google,goldfish-pic.txt | ||
hisilicon,mbigen-v2.txt | ||
img,meta-intc.txt | ||
img,pdc-intc.txt | ||
ingenic,intc.txt | ||
intel,ce4100-ioapic.txt | ||
interrupts.txt | ||
jcore,aic.txt | ||
lsi,zevio-intc.txt | ||
marvell,armada-8k-pic.txt | ||
marvell,armada-370-xp-mpic.txt | ||
marvell,gicp.txt | ||
marvell,icu.txt | ||
marvell,odmi-controller.txt | ||
marvell,orion-intc.txt | ||
mediatek,cirq.txt | ||
mediatek,sysirq.txt | ||
microchip,pic32-evic.txt | ||
mips-gic.txt | ||
mrvl,intc.txt | ||
mscc,ocelot-icpu-intr.txt | ||
msi.txt | ||
nvidia,tegra20-ictlr.txt | ||
nxp,lpc3220-mic.txt | ||
open-pic.txt | ||
opencores,or1k-pic.txt | ||
openrisc,ompic.txt | ||
qca,ath79-cpu-intc.txt | ||
qca,ath79-misc-intc.txt | ||
qcom,pdc.txt | ||
renesas,h8s-intc.txt | ||
renesas,h8300h-intc.txt | ||
renesas,intc-irqpin.txt | ||
renesas,irqc.txt | ||
riscv,cpu-intc.txt | ||
samsung,exynos4210-combiner.txt | ||
samsung,s3c24xx-irq.txt | ||
sifive,plic-1.0.0.txt | ||
sigma,smp8642-intc.txt | ||
snps,arc700-intc.txt | ||
snps,archs-idu-intc.txt | ||
snps,archs-intc.txt | ||
snps,dw-apb-ictl.txt | ||
socionext,synquacer-exiu.txt | ||
socionext,uniphier-aidet.txt | ||
st,spear3xx-shirq.txt | ||
st,sti-irq-syscfg.txt | ||
st,stm32-exti.txt | ||
technologic,ts4800.txt | ||
ti,c64x+megamod-pic.txt | ||
ti,cp-intc.txt | ||
ti,keystone-irq.txt | ||
ti,omap2-intc.txt | ||
ti,omap4-wugen-mpu | ||
ti,omap-intc-irq.txt | ||
via,vt8500-intc.txt |