Suzuki K Poulose 96a7f64400 coresight: tmc-etr: Handle driver mode specific ETR buffers ... Since the ETR could be driven either by SYSFS or by perf, it becomes complicated how we deal with the buffers used for each of these modes. The ETR driver cannot simply free the current attached buffer without knowing the provider (i.e, sysfs vs perf). To solve this issue, we provide: 1) the driver-mode specific etr buffer to be retained in the drvdata 2) the etr_buf for a session should be passed on when enabling the hardware, which will be stored in drvdata->etr_buf. This will be replaced (not free'd) as soon as the hardware is disabled, after necessary sync operation. The advantages of this are : 1) The common code path doesn't need to worry about how to dispose an existing buffer, if it is about to start a new session with a different buffer, possibly in a different mode. 2) The driver mode can control its buffers and can get access to the saved session even when the hardware is operating in a different mode. (e.g, we can still access a trace buffer from a sysfs mode even if the etr is now used in perf mode, without disrupting the current session.) Towards this, we introduce a sysfs specific data which will hold the etr_buf used for sysfs mode of operation, controlled solely by the sysfs mode handling code. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-09-25 20:09:17 +02:00
..
accessibility
acpi	Merge branch 'acpi-bus'	2018-09-07 10:05:20 +02:00
amba
android	Merge b4.19-rc4 into char-misc-next	2018-09-16 22:41:47 +02:00
ata	SCSI fixes on 20180905	2018-09-05 09:17:20 -07:00
atm
auxdisplay	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
base	firmware: Fix security issue with request_firmware_into_buf()	2018-09-12 09:31:00 +02:00
bcma
block	for-linus-20180913	2018-09-13 19:16:11 -10:00
bluetooth	Bluetooth: mediatek: Fix memory leak	2018-08-21 16:56:20 +02:00
bus	Merge branch 'perm-fix' into omap-for-v4.19/fixes-v2	2018-08-28 09:58:03 -07:00
cdrom	cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status	2018-08-29 08:09:20 -06:00
char	A few fixes that came around or after the merge window, except	2018-09-12 19:33:56 -10:00
clk	clk: x86: Set default parent to 48Mhz	2018-08-30 14:47:41 -07:00
clocksource	RISC-V Updates for the 4.19 Merge Window	2018-08-19 09:56:38 -07:00
connector
cpufreq	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
cpuidle	cpuidle: menu: Retain tick when shallow state is selected	2018-08-25 13:16:08 +02:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2018-08-29 13:38:39 -07:00
dax	drivers/dax/device.c: convert variable to vm_fault_t type	2018-09-04 16:45:02 -07:00
dca
devfreq	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
dio
dma	dmaengine: mic_x100_dma: use devm_kzalloc to fix an issue	2018-08-27 11:16:04 +05:30
dma-buf
edac	EDAC: Add missing MEM_LRDDR4 entry in edac_mem_types[]	2018-08-17 15:13:34 +02:00
eisa
extcon
firewire	firewire: use 64-bit time_t based interfaces	2018-08-17 16:20:27 -07:00
firmware	firmware: coreboot: Only populate devices in coreboot_table_init()	2018-09-14 15:37:23 +02:00
fmc
fpga	Merge b4.19-rc4 into char-misc-next	2018-09-16 22:41:47 +02:00
fsi
gnss
gpio	gpio: Fix crash due to registration race	2018-08-31 11:30:45 +02:00
gpu	Merge branch 'linux-4.19' of git://github.com/skeggsb/linux into drm-fixes	2018-09-14 09:38:42 +10:00
hid	HID: i2c-hid: Don't reset device upon system resume	2018-09-06 16:30:53 +02:00
hsi
hv	Merge b4.19-rc4 into char-misc-next	2018-09-16 22:41:47 +02:00
hwmon	ARM: SoC fixes	2018-09-08 15:38:57 -07:00
hwspinlock
hwtracing	coresight: tmc-etr: Handle driver mode specific ETR buffers	2018-09-25 20:09:17 +02:00
i2c	i2c: xiic: Make the start and the byte count write atomic	2018-09-06 20:49:09 +02:00
ide	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide	2018-08-22 07:40:33 -07:00
idle
iio	First set of IIO fixes for the 4.19 cycle.	2018-09-09 09:33:29 +02:00
infiniband	pci-v4.19-fixes-1	2018-09-12 19:39:56 -10:00
input	ARM: 32-bit SoC platform updates	2018-08-23 13:44:43 -07:00
iommu	ARM: SoC: late updates	2018-08-25 14:12:36 -07:00
ipack
irqchip	irqchip/gic-v3-its: Cap lpi_id_bits to reduce memory footprint	2018-09-06 20:31:59 +02:00
isdn	isdn: Disable IIOCDBGVAR	2018-08-16 12:26:24 -07:00
leds
lightnvm
macintosh	macintosh: therm_windtunnel: drop using attach_adapter	2018-08-24 14:42:42 +02:00
mailbox	mailbox: Add support for i.MX messaging unit	2018-08-15 09:53:07 +05:30
mcb
md	- DM verity fix for crash due to using vmalloc'd buffers with the	2018-09-13 19:12:55 -10:00
media	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
memory	memory: ti-aemif: fix a potential NULL-pointer dereference	2018-09-06 10:04:07 -07:00
memstick
message
mfd	Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2018-08-21 17:40:46 -07:00
misc	misc: sgi-gru: fix fall-through annotations	2018-09-20 15:13:52 +02:00
mmc	mmc: meson-mx-sdio: fix OF child-node lookup	2018-09-05 08:28:45 +02:00
mtd	mtd: rawnand: denali: do not pass zero maxchips to nand_scan()	2018-08-27 20:41:46 +02:00
mux
net	nfp: flower: reject tunnel encap with ipv6 outer headers for offloading	2018-09-12 13:18:30 -07:00
nfc
ntb
nubus
nvdimm	libnvdimm-for-4.19_dax-memory-failure	2018-08-25 18:43:59 -07:00
nvme	nvmet-rdma: fix possible bogus dereference under heavy load	2018-09-05 12:18:01 -07:00
nvmem	nvmem: core: return error code instead of NULL from nvmem_device_get	2018-09-12 09:46:46 +02:00
of	Devicetree fixes for 4.19, part 2:	2018-09-14 13:03:17 -10:00
opp
oprofile
parisc
parport	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
pci	PCI: Fix enabling of PASID on RC integrated endpoints	2018-09-11 21:46:49 -05:00
pcmcia	pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function	2018-08-18 12:30:42 -07:00
perf	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
phy
pinctrl	pinctrl: madera: Fix possible NULL pointer with pdata config	2018-08-29 14:02:47 +02:00
platform	platform: goldfish: pipe: Replace "x==NULL" to "!x"	2018-09-14 15:31:31 +02:00
pnp
power	treewide: convert ISO_8859-1 text comments to utf-8	2018-08-23 18:48:43 -07:00
powercap
pps
ps3
ptp	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
pwm	pwm: mediatek: Add MT7628 support	2018-08-20 11:36:07 +02:00
rapidio	drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer md	2018-08-22 10:52:51 -07:00
ras
regulator	- New Drivers	2018-08-20 15:38:44 -07:00
remoteproc	remoteproc/davinci: use the reset framework	2018-08-16 17:39:55 -07:00
reset	ARM: SoC: late updates	2018-08-25 14:12:36 -07:00
rpmsg
rtc	RTC for 4.19	2018-08-20 16:30:27 -07:00
s390	s390 fixes for 4.19-rc4	2018-09-13 16:22:24 -10:00
sbus
scsi	scsi: qedi: Add the CRC size within iSCSI NVM image	2018-08-30 07:15:22 -04:00
sfi
sh
siox
slimbus	slimbus: ngd: mark PM functions as __maybe_unused	2018-09-14 15:36:20 +02:00
sn
soc	ARM: Device-tree updates	2018-08-23 14:02:22 -07:00
soundwire
spi	hwspinlock updates for v4.19	2018-08-18 16:45:27 -07:00
spmi
ssb
staging	staging: vboxvideo: Change address of scanout buffer on page-flip	2018-09-11 18:39:54 +02:00
target	scsi: iscsi: target: Fix conn_ops double free	2018-08-30 07:07:12 -04:00
tc
tee	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
thermal	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal	2018-08-28 16:11:34 -07:00
thunderbolt
tty	tty: hvc: hvc_write() fix break condition	2018-09-10 18:04:31 +02:00
uio	uio: convert to vm_fault_t	2018-09-12 09:46:46 +02:00
usb	Revert "cdc-acm: implement put_char() and flush_chars()"	2018-09-10 20:40:29 +02:00
uwb
vfio	powerpc updates for 4.19	2018-08-17 11:32:50 -07:00
vhost	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-08-27 11:59:39 -07:00
video	fbdev changes for v4.19:	2018-08-23 15:44:58 -07:00
virt
virtio	virtio, vhost: fixes, tweaks	2018-08-24 08:45:19 -07:00
visorbus
vlynq
vme	vme: remove unneeded kfree	2018-09-14 15:25:57 +02:00
w1	power supply and reset changes for the v4.19 series	2018-08-21 18:06:27 -07:00
watchdog	include/linux/compiler*.h: make compiler-*.h mutually exclusive	2018-08-22 17:31:34 -07:00
xen	xen/gntdev: fix up blockable calls to mn_invl_range_start	2018-09-14 08:52:30 -04:00
zorro
Kconfig
Makefile	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00