Peter Maydell 99abcbc760 clock: Provide builtin multiplier/divider ... It is quite common for a clock tree to involve possibly programmable clock multipliers or dividers, where the frequency of a clock is for instance divided by 8 to produce a slower clock to feed to a particular device. Currently we provide no convenient mechanism for modelling this. You can implement it by having an input Clock and an output Clock, and manually setting the period of the output clock in the period-changed callback of the input clock, but that's quite clunky. This patch adds support in the Clock objects themselves for setting a multiplier or divider. The effect of setting this on a clock is that when the clock's period is changed, all the children of the clock are set to period * multiplier / divider, rather than being set to the same period as the parent clock. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alexandre Iooss <erdnaxe@crans.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Luc Michel <luc@lmichel.fr> Reviewed-by: Damien Hedde <damien.hedde@greensocs.com> Message-id: 20210812093356.1946-10-peter.maydell@linaro.org		2021-09-01 11:08:19 +01:00
..
9pfs	9pfs: reduce latency of Twalk	2021-07-05 13:03:16 +02:00
acpi	hw/acpi/Kconfig: Add missing Kconfig dependencies (build error)	2021-07-20 15:29:27 +02:00
adc	adc: Move the max111x driver to the adc directory	2021-06-17 07:10:32 -05:00
alpha	hw/alpha: Provide a PCI-ISA bridge device node	2021-06-28 07:27:32 -07:00
arm	hw/arm/mps2.c: Connect up armv7m clocks	2021-09-01 11:08:19 +01:00
audio	hw/audio/adlib: Remove unused variable in adlib_callback	2021-07-26 07:07:07 -10:00
avr	hw/avr/atmega.c: use the avr51 cpu for atmega1280	2021-05-13 19:11:42 +02:00
block	pc,pci,virtio: bugfixes, improvements	2021-07-09 14:30:01 +01:00
char	hw/char: Add config for shakti uart	2021-09-01 11:59:12 +10:00
core	clock: Provide builtin multiplier/divider	2021-09-01 11:08:19 +01:00
cpu	cpu/core: Fix "help" of CPU core device types	2021-04-09 16:05:16 -04:00
cris	Do not include exec/address-spaces.h if it's not really necessary	2021-05-02 17:24:51 +02:00
display	hw/display: fix virgl reset regression	2021-07-22 15:46:54 +02:00
dma	hw/dma/xlnx-zdma Always expect 'dma' link property to be set	2021-08-26 17:01:59 +01:00
gpio	hw: aspeed_gpio: Fix memory size	2021-07-27 11:00:00 +01:00
hppa	docs: fix references to docs/devel/tracing.rst	2021-06-02 06:51:09 +02:00
hyperv	vmbus: Don't make QOM property registration conditional	2021-07-06 18:04:38 -04:00
i2c	i2c/smbus_eeprom: Add feature bit to SPD data	2021-07-29 10:59:49 +10:00
i386	hw: Add compat machines for 6.2	2021-09-01 11:08:16 +01:00
ide	hw/ide/Kconfig: Add missing dependency PCI -> IDE_QDEV	2021-07-20 15:30:42 +02:00
input	Some qemu updates for IPMI and I2C	2021-07-11 14:32:49 +01:00
intc	arm: Move system PPB container handling to armv7m	2021-09-01 11:08:18 +01:00
ipack	Use OBJECT_DECLARE_SIMPLE_TYPE when possible	2020-09-18 14:12:32 -04:00
ipmi	ipmi/sim: fix watchdog_expired data type error in IPMIBmcSim struct	2021-07-08 14:15:01 -05:00
isa	hw/isa/vt82c686: Add missing Kconfig dependency (runtime error)	2021-07-20 20:10:20 +02:00
m68k	bitops.h: revert db1ffc32dd ("qemu/bitops.h: add bitrev8 implementation")	2021-07-26 06:56:41 -10:00
mem	docs: fix references to docs/devel/tracing.rst	2021-06-02 06:51:09 +02:00
microblaze	Do not include sysemu/sysemu.h if it's not really necessary	2021-05-02 17:24:50 +02:00
mips	arch_init.h: Don't include arch_init.h unnecessarily	2021-08-26 17:02:00 +01:00
misc	arm: Move M-profile RAS register block into its own device	2021-09-01 11:08:18 +01:00
net	hw/net: e1000e: Don't zero out the VLAN tag in the legacy RX descriptor	2021-08-02 12:19:18 +08:00
nios2	Do not include cpu.h if it's not really necessary	2021-05-02 17:24:51 +02:00
nubus	hw: Do not include hw/sysbus.h if it is not necessary	2021-05-02 17:24:50 +02:00
nvme	hw/nvme: fix missing variable initializers	2021-08-09 12:52:16 +02:00
nvram	docs: fix references to docs/devel/tracing.rst	2021-06-02 06:51:09 +02:00
openrisc	Do not include exec/address-spaces.h if it's not really necessary	2021-05-02 17:24:51 +02:00
pci	hw/pci: Add pci_bus_range() to get PCI bus number range	2021-07-16 11:10:45 -04:00
pci-bridge	hw/pcie-root-port: Fix hotplug for PCI devices requiring IO	2021-08-03 16:31:07 -04:00
pci-host	Revert "acpi/gpex: Inform os to keep firmware resource map"	2021-08-03 16:32:34 -04:00
pcmcia	hw/pcmcia: Do not register PCMCIA type if not required	2021-05-02 17:24:50 +02:00
ppc	hw: Add compat machines for 6.2	2021-09-01 11:08:16 +01:00
rdma	pvrdma: Fix the ring init error flow (CVE-2021-3608)	2021-07-04 22:47:51 +03:00
remote	Remove superfluous ERRP_GUARD()	2021-08-26 17:15:28 +02:00
riscv	hw/riscv/virt.c: Assemble plic_hart_config string with g_strjoinv()	2021-09-01 11:59:12 +10:00
rtc	docs: fix references to docs/devel/tracing.rst	2021-06-02 06:51:09 +02:00
rx	hw/rx/rx-gdbsim: Do not accept invalid memory size	2021-05-03 10:07:41 +02:00
s390x	hw: Add compat machines for 6.2	2021-09-01 11:08:16 +01:00
scsi	vhost-scsi: Plug memory leak on migrate_add_blocker() failure	2021-08-26 17:15:28 +02:00
sd	hw/sd/sdcard: Fix assertion accessing out-of-range addresses with CMD30	2021-08-03 19:34:51 +02:00
sensor	hw/misc: add MAX34451 device	2021-07-08 14:42:00 -05:00
sh4	Do not include exec/address-spaces.h if it's not really necessary	2021-05-02 17:24:51 +02:00
smbios	hw/smbios: support for type 41 (onboard devices extended information)	2021-05-14 10:26:18 -04:00
sparc	hw/block/fdc: Extract SysBus floppy controllers to fdc-sysbus.c	2021-06-25 08:53:28 -04:00
sparc64	hw/block/fdc: Extract ISA floppy controllers to fdc-isa.c	2021-06-25 08:53:28 -04:00
ssi	Trivial patches pull request 20210503	2021-05-05 13:52:00 +01:00
timer	hw/timer/armv7m_systick: Add input clocks	2021-09-01 11:08:19 +01:00
tpm	docs: fix references to docs/specs/tpm.rst	2021-06-02 06:51:09 +02:00
tricore	hw/tricore: fix inclusion of tricore_testboard	2021-07-20 20:10:21 +02:00
usb	chardev: mark explicitly first argument as poisoned	2021-08-05 16:15:33 +04:00
vfio	vfio: Avoid error_propagate() after migrate_add_blocker()	2021-08-26 17:15:28 +02:00
virtio	vhost: Clean up how VhostOpts method vhost_backend_init() fails	2021-08-26 17:15:28 +02:00
watchdog	docs: fix references to docs/devel/tracing.rst	2021-06-02 06:51:09 +02:00
xen	docs: fix references to docs/devel/tracing.rst	2021-06-02 06:51:09 +02:00
xenpv	meson: convert hw/arch*	2020-08-21 06:30:33 -04:00
xtensa	Do not include exec/address-spaces.h if it's not really necessary	2021-05-02 17:24:51 +02:00
Kconfig	sensor: Move hardware sensors from misc to a sensor directory	2021-06-17 07:10:32 -05:00
meson.build	sensor: Move hardware sensors from misc to a sensor directory	2021-06-17 07:10:32 -05:00