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linux-sg2042
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linux-sg2042/drivers
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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
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accessibility
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acpi IOMMU Updates for Linux v5.20/v6.0: 2022-08-06 10:42:38 -07:00
amba ARM: 9220/1: amba: Remove deferred device addition 2022-07-28 15:09:23 +01:00
android - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
ata dma-mapping updates 2022-08-06 10:56:45 -07:00
atm
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auxdisplay
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base Driver core / kernfs changes for 6.0-rc1 2022-08-04 11:31:20 -07:00
bcma
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block - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
bluetooth SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
bus SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
cdrom
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char IOMMU Updates for Linux v5.20/v6.0: 2022-08-06 10:42:38 -07:00
clk The clk core gains a new set of APIs that allow drivers to both acquire clks 2022-08-04 18:40:08 -07:00
clocksource RISC-V: Add Sstc extension support 2022-08-11 14:41:52 -07:00
comedi pci-v5.20-changes 2022-08-04 19:30:35 -07:00
connector
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counter
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cpufreq SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
cpuidle SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
crypto This update includes the following changes: 2022-08-02 17:45:14 -07:00
cxl
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dax
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dca
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devfreq Char / Misc driver changes for 6.0-rc1 2022-08-04 11:05:48 -07:00
dio
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dma pci-v5.20-changes 2022-08-04 19:30:35 -07:00
dma-buf drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
edac platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
eisa
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extcon
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firewire firewire: net: Make use of get_unaligned_be48(), put_unaligned_be48() 2022-07-28 22:21:54 -07:00
firmware RISC-V Patches for the 5.20 Merge Window, Part 1 2022-08-06 15:04:48 -07:00
fpga
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fsi
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gnss
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gpio gpio: updates for v6.0-rc1 2022-08-04 18:34:05 -07:00
gpu IOMMU Updates for Linux v5.20/v6.0: 2022-08-06 10:42:38 -07:00
greybus
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hid platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
hsi
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hte
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hv
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hwmon hwmon updates for v5.20 2022-08-02 11:07:04 -07:00
hwspinlock
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hwtracing asm-generic: updates for 6.0 2022-08-05 10:07:23 -07:00
i2c platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
i3c
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idle Power management updates for 5.20-rc1 2022-08-02 11:17:00 -07:00
iio
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infiniband dma-mapping updates 2022-08-06 10:56:45 -07:00
input parisc architecture fixes and updates for kernel v5.20-rc1: 2022-08-05 09:58:58 -07:00
interconnect
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iommu Revert "iommu/dma: Add config for PCI SAC address trick" 2022-08-06 13:24:56 -07:00
ipack
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irqchip RISC-V Patches for the 5.20 Merge Window, Part 1 2022-08-06 15:04:48 -07:00
isdn
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leds
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macintosh
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mailbox
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mcb
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md - Add flags argument to dm_bufio_client_create and introduce 2022-08-06 11:09:55 -07:00
media sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
memory SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
memstick MMC core: 2022-08-04 19:41:09 -07:00
message
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mfd - Core Frameworks 2022-08-06 10:25:16 -07:00
misc - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
mmc MMC core: 2022-08-04 19:41:09 -07:00
most
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mtd MTD core changes: 2022-08-05 14:13:45 -07:00
mux
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net Tracing updates for 5.20 / 6.0 2022-08-05 09:41:12 -07:00
nfc
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ntb
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nubus
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nvdimm - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
nvme dma-mapping updates 2022-08-06 10:56:45 -07:00
nvmem SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
of riscv: implement Zicbom-based CMO instructions + the t-head variant 2022-08-10 20:49:32 -07:00
opp
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parisc parisc architecture fixes and updates for kernel v5.20-rc1: 2022-08-05 09:58:58 -07:00
parport
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pci dma-mapping updates 2022-08-06 10:56:45 -07:00
pcmcia
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peci
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perf
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phy pci-v5.20-changes 2022-08-04 19:30:35 -07:00
pinctrl platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
platform platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
pnp PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h 2022-07-22 17:23:45 -05:00
power platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
powercap Power management updates for 5.20-rc1 2022-08-02 11:17:00 -07:00
pps
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ps3
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ptp SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
pwm SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
rapidio
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ras
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regulator chrome platform changes for 5.20 2022-08-04 18:13:19 -07:00
remoteproc
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reset ARM: SoC: late updates for 6.0 2022-08-05 10:02:33 -07:00
rpmsg
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rtc
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s390 VFIO updates for v6.0-rc1 2022-08-06 08:59:35 -07:00
sbus
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scsi dma-mapping updates 2022-08-06 10:56:45 -07:00
sh
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siox
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slimbus
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soc asm-generic: updates for 6.0 2022-08-05 10:07:23 -07:00
soundwire sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
spi Driver core / kernfs changes for 6.0-rc1 2022-08-04 11:31:20 -07:00
spmi
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ssb
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staging Staging driver patches for 6.0-rc1 2022-08-04 12:01:42 -07:00
target SCSI misc on 20220804 2022-08-04 19:47:37 -07:00
tc
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tee
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thermal SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
thunderbolt USB / Thunderbolt changes for 6.0-rc1 2022-08-04 11:41:28 -07:00
tty asm-generic: updates for 6.0 2022-08-05 10:07:23 -07:00
ufs SCSI misc on 20220804 2022-08-04 19:47:37 -07:00
uio
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usb dma-mapping updates 2022-08-06 10:56:45 -07:00
vdpa
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vfio VFIO updates for v6.0-rc1 2022-08-06 08:59:35 -07:00
vhost
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video - Core Frameworks 2022-08-06 10:33:34 -07:00
virt Char / Misc driver changes for 6.0-rc1 2022-08-04 11:05:48 -07:00
virtio - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
vlynq
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w1
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watchdog platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
xen - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
zorro
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Kconfig
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Makefile Staging driver patches for 6.0-rc1 2022-08-04 12:01:42 -07:00