iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
ac0ba21002
linux/drivers
History
Anshuman Khandual ac0ba21002 coresight: trbe: Work around the ignored system register writes 
TRBE implementations affected by Arm erratum #2064142 might fail to write
into certain system registers after the TRBE has been disabled. Under some
conditions after TRBE has been disabled, writes into certain TRBE registers
TRBLIMITR_EL1, TRBPTR_EL1, TRBBASER_EL1, TRBSR_EL1 and TRBTRG_EL1 will be
ignored and not be effected.

Work around this problem in the TRBE driver by executing TSB CSYNC and DSB
just after the trace collection has stopped and before performing a system
register write to one of the affected registers. This just updates the TRBE
driver as required.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Cc: linux-doc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1643120437-14352-6-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
2022-03-11 10:06:35 +00:00
..
accessibility Char/Misc and other driver changes for 5.17-rc1 2022-01-14 16:02:28 +01:00
acpi ACPI: require CRC32 to build 2022-01-31 20:16:28 +01:00
amba
android Merge 5.16-rc8 into char-misc-next 2022-01-03 13:44:38 +01:00
ata ata: libata-core: Introduce ATA_HORKAGE_NO_LOG_DIR horkage 2022-02-04 16:44:23 +09:00
atm atm: iphase: remove redundant pointer skb 2022-01-13 12:50:48 +00:00
auxdisplay
base firmware_loader: move firmware sysctl to its own files 2022-01-22 08:33:35 +02:00
bcma
block bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
bluetooth virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
bus pci-v5.17-changes 2022-01-16 08:08:11 +02:00
cdrom cdrom: simplify subdirectory registration with register_sysctl() 2022-01-22 08:33:35 +02:00
char random: only call crng_finalize_init() for primary_crng 2022-02-04 19:22:32 +01:00
clk Some hot fixes for clk driver patches merged last week 2022-01-21 09:16:11 +02:00
clocksource - Refactor resource allocation on the Exynos_mct driver without 2022-01-10 13:53:16 +01:00
comedi
connector connector/cn_proc: Use task_is_in_init_pid_ns() 2022-01-26 18:57:09 -08:00
counter counter: fix an IS_ERR() vs NULL bug 2022-01-26 19:40:33 +01:00
cpufreq cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State 2022-01-06 18:31:33 +01:00
cpuidle cpuidle: use default_groups in kobj_type 2022-01-05 18:31:17 +01:00
crypto virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
cxl cxl/core: Remove cxld_const_init in cxl_decoder_alloc() 2022-01-04 17:29:31 -08:00
dax Merge branch 'akpm' (patches from Andrew) 2022-01-15 20:37:06 +02:00
dca
devfreq
dio
dma dmaengine updates for v5.17-rc1 2022-01-18 14:03:34 +02:00
dma-buf dma-buf: heaps: Fix potential spectre v1 gadget 2022-02-01 13:18:09 +05:30
edac EDAC/xgene: Fix deferred probing 2022-01-30 01:06:35 +01:00
eisa
extcon
firewire
firmware efi: runtime: avoid EFIv2 runtime services on Apple x86 machines 2022-01-23 10:31:27 +01:00
fpga
fsi
gnss
gpio gpio: sim: check the label length when setting up device properties 2022-01-24 09:20:02 +01:00
gpu Merge tag 'drm-intel-fixes-2022-02-03' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes 2022-02-04 15:48:27 +10:00
greybus
hid HID: wacom: Avoid using stale array indicies to read contact count 2022-01-21 15:10:02 +01:00
hsi
hv Drivers: hv: balloon: account for vmbus packet header in max_pkt_size 2022-01-23 22:31:23 +00:00
hwmon hwmon: (nct6775) Fix crash in clear_caseopen 2022-01-24 14:32:47 -08:00
hwspinlock
hwtracing coresight: trbe: Work around the ignored system register writes 2022-03-11 10:06:35 +00:00
i2c virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
i3c i3c: master: dw: check return of dw_i3c_master_get_free_pos() 2022-01-13 02:05:50 +01:00
idle
iio bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
infiniband RDMA/mlx4: Don't continue event handler after memory allocation failure 2022-02-01 10:12:26 -04:00
input ASoC: Fixes for v5.17 2022-02-01 16:52:54 +01:00
interconnect
iommu iommu/amd: Fix loop timeout issue in iommu_ga_log_enable() 2022-02-04 12:57:26 +01:00
ipack
irqchip irqchip fixes for 5.17, take #1 2022-01-29 21:03:20 +01:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-12-30 12:12:12 -08:00
leds LED updates for 5.17. Nothing major is happening here. 2022-01-12 16:59:22 -08:00
macintosh macintosh/mac_hid.c: simplify subdirectory registration with register_sysctl() 2022-01-22 08:33:35 +02:00
mailbox - qcom: misc updates to qcom-ipcc driver 2022-01-13 11:19:07 -08:00
mcb
md md: fix NULL pointer deref with nowait but no mddev->queue 2022-02-02 10:14:07 -08:00
media bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
memory MTD core changes: 2022-01-11 11:35:28 -08:00
memstick
message scsi: message: fusion: mptctl: Use dma_alloc_coherent() 2022-01-10 10:33:52 -05:00
mfd driver core changes for 5.17-rc1 2022-01-12 11:11:34 -08:00
misc eeprom: at25: Restore missing allocation 2022-01-22 13:32:48 +01:00
mmc bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
most
mtd - added support for more BCM47XX based devices 2022-01-14 15:08:36 +01:00
mux
net net: stmmac: ensure PTP time register reads are consistent 2022-02-03 13:54:19 -08:00
nfc nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION 2022-01-12 14:17:45 +00:00
ntb New AMD PCI ID for NTB, and a number of bug fixes for ntb_hw_switchtec 2022-01-17 08:14:18 +02:00
nubus proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
nvdimm virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
nvme nvme-fabrics: fix state check in nvmf_ctlr_matches_baseopts() 2022-02-03 07:30:57 +01:00
nvmem
of Devicetree fixes for v5.17, take 1: 2022-01-22 09:52:17 +02:00
opp
parisc Merge branch 'akpm' (patches from Andrew) 2022-01-22 11:28:23 +02:00
parport
pci - Remove a bogus warning introduced by the recent PCI MSI irq affinity 2022-02-06 10:00:40 -08:00
pcmcia pci-v5.17-changes 2022-01-16 08:08:11 +02:00
perf Rework of the MSI interrupt infrastructure: 2022-01-13 09:05:29 -08:00
phy Char/Misc and other driver changes for 5.17-rc1 2022-01-14 16:02:28 +01:00
pinctrl pinctrl: microchip-sgpio: Fix support for regmap 2022-01-31 12:07:31 +01:00
platform platform/x86: thinkpad_acpi: Fix incorrect use of platform profile on AMD platforms 2022-02-01 15:37:00 +01:00
pnp proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
power platform-drivers-x86 for v5.17-1 2022-01-11 11:26:57 -08:00
powercap Merge back earlier power capping changes for v5.17 2021-12-27 16:51:12 +01:00
pps
ps3
ptp net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets 2022-01-06 12:18:08 +00:00
pwm pwm: Changes for v5.17-rc1 2022-01-20 13:25:01 +02:00
rapidio
ras
regulator regulator: MAX20086: add gpio/consumer.h 2022-01-19 16:47:39 +00:00
remoteproc remoteproc: qcom: q6v5: fix service routines build errors 2022-01-17 16:44:26 -06:00
reset SoC: Add support for StarFive JH7100 RISC-V SoC 2022-01-10 08:32:37 -08:00
rpmsg rpmsg fixes for v5.17-rc1 2022-01-27 11:23:26 +02:00
rtc rtc: sunplus: fix return value in sp_rtc_probe() 2022-01-16 23:50:34 +01:00
s390 scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices 2022-01-24 23:30:27 -05:00
sbus
scsi scsi: hisi_sas: Fix setting of hisi_sas_slot.is_internal 2022-01-31 16:50:59 -05:00
sh
siox
slimbus
soc bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
soundwire Char/Misc and other driver changes for 5.17-rc1 2022-01-14 16:02:28 +01:00
spi spi: Fixes for v5.17 2022-02-01 12:39:37 -08:00
spmi
ssb
staging Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2022-01-17 05:49:30 +02:00
target scsi: target: iscsi: Make sure the np under each tpg is unique 2022-01-24 23:30:24 -05:00
tc
tee ARM: SoC driver updates for v5.17 2022-01-10 08:13:52 -08:00
thermal thermal: int340x: Add Raptor Lake PCI device id 2022-01-17 19:48:07 +01:00
thunderbolt thunderbolt: Add module parameter for CLx disabling 2021-12-28 10:43:56 +03:00
tty serial: core: Initialize rs485 RTS polarity already on probe 2022-01-26 14:53:12 +01:00
uio UIO: use default_groups in kobj_type 2021-12-29 10:54:50 +01:00
usb usb: cdnsp: Fix segmentation fault in cdns_lost_power function 2022-01-26 14:11:16 +01:00
vdpa virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
vfio VFIO updates for v5.17-rc1 2022-01-20 13:31:46 +02:00
vhost vdpa: Protect vdpa reset with cf_mutex 2022-01-14 18:50:54 -05:00
video * dma-buf/heaps: Fix potential spectre v1 gadget 2022-02-04 14:43:35 +10:00
virt bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
virtio vdpa: Allow to configure max data virtqueues 2022-01-14 18:50:53 -05:00
visorbus
vlynq
vme
w1
watchdog linux-watchdog 5.17-rc1 tag 2022-01-17 08:07:57 +02:00
xen arm/xen: Read extended regions from DT and init Xen resource 2022-01-06 09:53:41 +01:00
zorro proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
Kconfig
Makefile