Palmer Dabbelt 7ab52f75a9 RISC-V: Add Sstc extension support ... This series implements Sstc extension support which was ratified recently. Before the Sstc extension, an SBI call is necessary to generate timer interrupts as only M-mode have access to the timecompare registers. Thus, there is significant latency to generate timer interrupts at kernel. For virtualized enviornments, its even worse as the KVM handles the SBI call and uses a software timer to emulate the timecomapre register. Sstc extension solves both these problems by defining a stimecmp/vstimecmp at supervisor (host/guest) level. It allows kernel to program a timer and recieve interrupt without supervisor execution enviornment (M-mode/HS mode) intervention. * palmer/riscv-sstc: RISC-V: Prefer sstc extension if available RISC-V: Enable sstc extension parsing from DT RISC-V: Add SSTC extension CSR details		2022-08-11 14:41:52 -07:00
..
boot	riscv: dts: starfive: correct number of external interrupts	2022-08-11 11:40:37 -07:00
configs	riscv: enable Docker requirements in defconfig	2022-07-22 13:43:28 -07:00
errata	riscv: implement Zicbom-based CMO instructions + the t-head variant	2022-08-10 20:49:32 -07:00
include	RISC-V: Add Sstc extension support	2022-08-11 14:41:52 -07:00
kernel	RISC-V: Add Sstc extension support	2022-08-11 14:41:52 -07:00
kvm	Merge remote-tracking branch 'kvm/next' into kvm-next-5.20	2022-08-01 03:21:00 -04:00
lib	riscv: lib: uaccess: fix CSR_STATUS SR_SUM bit	2022-08-10 14:06:31 -07:00
mm	RISC-V: fixups to work with crash tool	2022-08-11 09:04:01 -07:00
net	bpf, riscv: Support riscv jit to provide bpf_line_info	2022-06-02 16:26:01 -07:00
purgatory	riscv/purgatory: Omit use of bin2c	2022-08-11 09:32:34 -07:00
Kbuild	riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild	2022-06-01 22:26:32 -07:00
Kconfig	riscv/purgatory: Omit use of bin2c	2022-08-11 09:32:34 -07:00
Kconfig.debug
Kconfig.erratas	riscv: implement Zicbom-based CMO instructions + the t-head variant	2022-08-10 20:49:32 -07:00
Kconfig.socs	riscv: Kconfig: Style cleanups	2022-06-30 19:26:16 -07:00
Makefile	arch/riscv: add Zihintpause support	2022-08-11 08:03:49 -07:00