Rafael J. Wysocki 53d7eed031 cpufreq: intel_pstate: Use HWP if enabled by platform firmware ... commit e5af36b2adb858e982d78d41d7363d05d951a19a upstream. It turns out that there are systems where HWP is enabled during initialization by the platform firmware (BIOS), but HWP EPP support is not advertised. After commit 7aa1031223 ("cpufreq: intel_pstate: Avoid enabling HWP if EPP is not supported") intel_pstate refuses to use HWP on those systems, but the fallback PERF_CTL interface does not work on them either because of enabled HWP, and once enabled, HWP cannot be disabled. Consequently, the users of those systems cannot control CPU performance scaling. Address this issue by making intel_pstate use HWP unconditionally if it is enabled already when the driver starts. Fixes: 7aa1031223 ("cpufreq: intel_pstate: Avoid enabling HWP if EPP is not supported") Reported-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: 5.9+ <stable@vger.kernel.org> # 5.9+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-19 10:12:51 +02:00
..
accessibility	speakup: fix uninitialized flush_lock	2020-12-30 11:53:44 +01:00
acpi	ACPI: PM: Add ACPI ID of Alder Lake Fan	2021-05-19 10:12:51 +02:00
amba	amba: Fix resource leak for drivers without .remove	2021-03-04 11:38:02 +01:00
android	binder: add flag to clear buffer on txn complete	2020-12-30 11:54:09 +01:00
ata	ata: libahci_platform: fix IRQ check	2021-05-14 09:50:24 +02:00
atm	atm: idt77252: fix null-ptr-dereference	2021-03-30 14:31:50 +02:00
auxdisplay	auxdisplay: ht16k33: Fix refresh rate handling	2021-03-04 11:38:00 +01:00
base	PM: runtime: Fix unpaired parent child_count for force_resume	2021-05-19 10:12:51 +02:00
bcma
block	drivers/block/null_blk/main: Fix a double free in null_init.	2021-05-14 09:50:28 +02:00
bluetooth	Bluetooth: btqca: Add valid le states quirk	2021-03-11 14:17:22 +01:00
bus	bus: qcom: Put child node before return	2021-05-14 09:50:13 +02:00
cdrom
char	tpm, tpm_tis: Reserve locality in tpm_tis_resume()	2021-05-19 10:12:51 +02:00
clk	clk: uniphier: Fix potential infinite loop	2021-05-14 09:50:26 +02:00
clocksource	clocksource/drivers/ingenic_ost: Fix return value check in ingenic_ost_probe()	2021-05-14 09:50:16 +02:00
connector
counter	counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register	2021-03-25 09:04:16 +01:00
cpufreq	cpufreq: intel_pstate: Use HWP if enabled by platform firmware	2021-05-19 10:12:51 +02:00
cpuidle	cpuidle: Fix ARM_QCOM_SPM_CPUIDLE configuration	2021-05-14 09:50:16 +02:00
crypto	crypto: ccp: Detect and reject "invalid" addresses destined for PSP	2021-05-14 09:50:41 +02:00
dax	device-dax: Fix default return code of range_parse()	2021-03-04 11:38:15 +01:00
dca
devfreq	PM / devfreq: Use more accurate returned new_freq as resume_freq	2021-05-14 09:50:15 +02:00
dio
dma	dmaengine: tegra20: Fix runtime PM imbalance on error	2021-04-28 13:40:01 +02:00
dma-buf	dmabuf: fix use-after-free of dmabuf's file->f_inode	2021-01-12 20:18:24 +01:00
edac	EDAC/amd64: Do not load on family 0x15, model 0x13	2021-03-07 12:34:08 +01:00
eisa
extcon	extcon: arizona: Fix various races on driver unbind	2021-05-11 14:47:24 +02:00
firewire	firewire: nosy: Fix a use-after-free bug in nosy_ioctl()	2021-04-07 15:00:11 +02:00
firmware	firmware: qcom-scm: Fix QCOM_SCM configuration	2021-05-14 09:50:19 +02:00
fpga	fpga: fpga-mgr: xilinx-spi: fix error messages on -EPROBE_DEFER	2021-05-14 09:50:06 +02:00
fsi	fsi: Aspeed: Add mutex to protect HW access	2020-12-30 11:53:46 +01:00
gnss
gpio	gpio: omap: Save and restore sysconfig	2021-04-28 13:39:59 +02:00
gpu	drm/amd/pm: fix error code in smu_set_power_limit()	2021-05-14 09:50:39 +02:00
greybus
hid	HID: lenovo: Map mic-mute button to KEY_F20 instead of KEY_MICMUTE	2021-05-14 09:50:33 +02:00
hsi	HSI: core: fix resource leaks in hsi_add_client_from_dt()	2021-05-14 09:50:28 +02:00
hv	Drivers: hv: vmbus: Increase wait time for VMbus unload	2021-05-14 09:50:21 +02:00
hwmon	hwmon: (pmbus/pxe1610) don't bail out when not all pages are active	2021-05-14 09:50:20 +02:00
hwspinlock
hwtracing	intel_th: pci: Add Alder Lake-M support	2021-05-11 14:47:35 +02:00
i2c	i2c: mediatek: Fix wrong dma sync flag	2021-05-14 09:50:39 +02:00
i3c	Revert "i3c master: fix missing destroy_workqueue() on error in i3c_master_register"	2021-05-14 09:50:05 +02:00
ide	ide/falconide: Fix module unload	2021-03-04 11:38:21 +01:00
idle
iio	iio: adc: Kconfig: make AD9467 depend on ADI_AXI_ADC symbol	2021-05-14 09:50:15 +02:00
infiniband	RDMA/bnxt_re: Fix a double free in bnxt_qplib_alloc_res	2021-05-14 09:50:44 +02:00
input	Input: ili210x - add missing negation for touch indication on ili210x	2021-05-11 14:47:34 +02:00
interconnect	interconnect: core: fix error return code of icc_link_destroy()	2021-04-16 11:43:19 +02:00
iommu	iommu/amd: Put newline after closing bracket in warning	2021-05-14 09:50:38 +02:00
ipack
irqchip	irqchip/gic-v3: Fix OF_BAD_ADDR error handling	2021-05-14 09:50:15 +02:00
isdn	mISDN: fix crash in fritzpci	2021-04-10 13:36:08 +02:00
leds	leds: trigger: fix potential deadlock with libata	2021-02-03 23:28:41 +01:00
lightnvm	lightnvm: fix memory leak when submit fails	2021-01-27 11:55:22 +01:00
macintosh	macintosh/adb-iop: Use big-endian autopoll mask	2021-03-04 11:37:42 +01:00
mailbox	mailbox: sprd: Introduce refcnt when clients requests/free channels	2021-05-14 09:50:27 +02:00
mcb
md	md: Fix missing unused status line of /proc/mdstat	2021-05-14 09:49:59 +02:00
media	media: v4l2-ctrls.c: fix race condition in hdl->requests list	2021-05-14 09:50:25 +02:00
memory	memory: samsung: exynos5422-dmc: handle clk_set_parent() failure	2021-05-14 09:50:19 +02:00
memstick	memstick: r592: Fix error return in r592_probe()	2020-12-30 11:53:34 +01:00
message
mfd	mfd: stm32-timers: Avoid clearing auto reload register	2021-05-14 09:50:27 +02:00
misc	misc: vmw_vmci: explicitly initialize vmci_datagram payload	2021-05-14 09:49:59 +02:00
mmc	mmc: sdhci-brcmstb: Remove CQE quirk	2021-05-11 14:47:26 +02:00
most
mtd	mtd: rawnand: gpmi: Fix a double free in gpmi_nand_init	2021-05-14 09:50:15 +02:00
mux
net	net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send	2021-05-14 09:50:43 +02:00
nfc	nfc: pn533: prevent potential memory corruption	2021-05-14 09:50:32 +02:00
ntb
nubus
nvdimm	libnvdimm/region: Fix nvdimm_has_flush() to handle ND_REGION_ASYNC	2021-04-21 13:00:55 +02:00
nvme	nvme-pci: don't simple map sgl when sgls are disabled	2021-05-14 09:50:27 +02:00
nvmem	drivers: nvmem: Fix voltage settings for QTI qfprom-efuse	2021-05-14 09:50:14 +02:00
of	of: overlay: fix for_each_child.cocci warnings	2021-05-14 09:50:24 +02:00
opp	opp: Correct debug message in _opp_add_static_v2()	2021-03-04 11:37:27 +01:00
oprofile
parisc
parport
pci	PCI: keystone: Let AM65 use the pci_ops defined in pcie-designware-host.c	2021-05-14 09:49:58 +02:00
pcmcia
perf	perf/arm_pmu_platform: Fix error handling	2021-05-11 14:47:19 +02:00
phy	phy: marvell: ARMADA375_USBCLUSTER_PHY should not default to y, unconditionally	2021-05-14 09:50:13 +02:00
pinctrl	pinctrl: pinctrl-single: fix pcs_pin_dbg_show() when bits_per_mux is not zero	2021-05-14 09:50:30 +02:00
platform	platform/x86: pmc_atom: Match all Beckhoff Automation baytrail boards with critclk_systems DMI table	2021-05-14 09:50:20 +02:00
pnp
power	power: supply: bq25980: Move props from battery node	2021-05-14 09:50:25 +02:00
powercap
pps
ps3	powerpc/ps3: use dma_mapping_error()	2020-12-30 11:53:53 +01:00
ptp	ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation	2021-04-10 13:36:09 +02:00
pwm	pwm: iqs620a: Fix overflow and optimize calculations	2021-03-04 11:38:17 +01:00
rapidio
ras	RAS/CEC: Correct ce_add_elem()'s returned values	2021-04-14 08:42:12 +02:00
regulator	regulator: bd9576: Fix return from bd957x_probe()	2021-05-14 09:50:10 +02:00
remoteproc	remoteproc: qcom: pil_info: avoid 64-bit division	2021-04-14 08:42:05 +02:00
reset
rpmsg
rtc	rtc: zynqmp: depend on HAS_IOMEM	2021-03-04 11:38:03 +01:00
s390	s390/zcrypt: fix zcard and zqueue hot-unplug memleak	2021-05-11 14:47:11 +02:00
sbus
scsi	scsi: ibmvfc: Fix invalid state machine BUG_ON()	2021-05-14 09:50:27 +02:00
sfi
sh
siox
slimbus	slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()	2020-12-30 11:53:47 +01:00
soc	soc: aspeed: fix a ternary sign expansion bug	2021-05-14 09:50:21 +02:00
soundwire	soundwire: stream: fix memory leak in stream config error path	2021-05-14 09:50:14 +02:00
spi	spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails	2021-05-14 09:50:20 +02:00
spmi	spmi: spmi-pmic-arb: Fix hw_irq overflow	2021-03-04 11:38:40 +01:00
ssb
staging	media: cedrus: Fix H265 status definitions	2021-05-14 09:50:28 +02:00
target	scsi: target: pscsi: Fix warning in pscsi_complete_cmd()	2021-05-11 14:47:23 +02:00
tc
tee	tee: optee: do not check memref size on return from Secure World	2021-05-11 14:47:18 +02:00
thermal	thermal/core/fair share: Lock the thermal zone while looping over instances	2021-05-11 14:47:41 +02:00
thunderbolt	thunderbolt: Fix off by one in tb_port_find_retimer()	2021-04-14 08:42:03 +02:00
tty	serial: omap: fix rs485 half-duplex filtering	2021-05-14 09:50:21 +02:00
uio
usb	usb: dwc2: Fix hibernation between host and device modes.	2021-05-14 09:50:21 +02:00
vdpa	vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails	2021-04-28 13:39:59 +02:00
vfio	vfio/mdev: Do not allow a mdev_type to have a NULL parent pointer	2021-05-14 09:50:26 +02:00
vhost	vhost-vdpa: fix vm_flags for virtqueue doorbell mapping	2021-05-11 14:47:12 +02:00
video	backlight: qcom-wled: Fix FSC update issue for WLED5	2021-05-11 14:47:25 +02:00
virt	nitro_enclaves: Fix stale file descriptors on failed usercopy	2021-05-11 14:47:11 +02:00
virtio	virtio_ring: Fix two use after free bugs	2020-12-30 11:54:00 +01:00
visorbus
vlynq
vme
w1	w1: w1_therm: Fix conversion result for negative temperatures	2021-03-04 11:37:18 +01:00
watchdog	watchdog: mei_wdt: request stop on unregister	2021-03-04 11:38:36 +01:00
xen	xen/events: fix setting irq affinity	2021-04-16 11:43:22 +02:00
zorro
Kconfig
Makefile