AuxXxilium/linux_dsm_epyc7002
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9cd20ef780
linux_dsm_epyc7002/drivers
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Lionel Landwerlin 9cd20ef780 drm/i915/perf: allow holding preemption on filtered ctx 
We would like to make use of perf in Vulkan. The Vulkan API is much
lower level than OpenGL, with applications directly exposed to the
concept of command buffers (pretty much equivalent to our batch
buffers). In Vulkan, queries are always limited in scope to a command
buffer. In OpenGL, the lack of command buffer concept meant that
queries' duration could span multiple command buffers.

With that restriction gone in Vulkan, we would like to simplify
measuring performance just by measuring the deltas between the counter
snapshots written by 2 MI_RECORD_PERF_COUNT commands, rather than the
more complex scheme we currently have in the GL driver, using 2
MI_RECORD_PERF_COUNT commands and doing some post processing on the
stream of OA reports, coming from the global OA buffer, to remove any
unrelated deltas in between the 2 MI_RECORD_PERF_COUNT.

Disabling preemption only apply to a single context with which want to
query performance counters for and is considered a privileged
operation, by default protected by CAP_SYS_ADMIN. It is possible to
enable it for a normal user by disabling the paranoid stream setting.

v2: Store preemption setting in intel_context (Chris)

v3: Use priorities to avoid preemption rather than the HW mechanism

v4: Just modify the port priority reporting function

v5: Add nopreempt flag on gem context and always flag requests
    appropriately, regarless of OA reconfiguration.

Link: https://gitlab.freedesktop.org/mesa/mesa/merge_requests/932
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014201404.22468-4-chris@chris-wilson.co.uk
2019-10-14 21:30:28 +01:00
..
accessibility
acpi drivers/acpi/scan.c: document why we don't need the device_hotplug_lock 2019-08-03 07:02:01 -07:00
amba Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
android binder: prevent transactions to context manager from its own process. 2019-07-24 11:02:28 +02:00
ata ata: libahci: do not complain in case of deferred probe 2019-07-31 08:51:17 -06:00
atm atm: idt77252: Remove call to memset after dma_alloc_coherent 2019-07-15 11:06:27 -07:00
auxdisplay It's been a relatively busy cycle for docs: 2019-07-09 12:34:26 -07:00
base Char/Misc driver fixes for 5.3-rc2 2019-07-28 10:26:10 -07:00
bcma
block nbd: replace kill_bdev() with __invalidate_device() again 2019-07-31 08:51:56 -06:00
bluetooth Bluetooth: hci_uart: check for missing tty operations 2019-07-31 13:17:33 -07:00
bus ARM: SoC-related driver updates 2019-07-19 17:13:56 -07:00
cdrom
char tpm: tpm_ibm_vtpm: Fix unallocated banks 2019-08-05 00:55:00 +03:00
clk clk: renesas: cpg-mssr: Fix reset control race condition 2019-07-22 15:04:54 -07:00
clocksource clocksource/drivers/npcm: Fix misuse of GENMASK macro 2019-07-10 11:05:26 +02:00
connector connector: remove redundant input callback from cn_dev 2019-07-21 13:31:14 -07:00
counter Staging / IIO driver update for 5.3-rc1 2019-07-11 15:36:02 -07:00
cpufreq cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init() 2019-07-23 09:49:10 +02:00
cpuidle Merge branch 'pm-cpufreq' 2019-07-18 09:49:30 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-19 12:23:37 -07:00
dax Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
dca
devfreq treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dio
dma dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
dma-buf dma-fence: Store the timestamp in the same union as the cb_list 2019-08-17 18:46:33 +01:00
edac EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec 2019-06-27 10:24:47 -07:00
eisa
extcon treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
firewire firewire: mark expected switch fall-throughs 2019-07-25 20:09:37 -05:00
firmware Merge branch 'for-linus-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft 2019-07-26 09:43:43 -07:00
fpga fpga-manager: altera-ps-spi: Fix build error 2019-07-24 11:29:41 +02:00
fsi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 469 2019-06-19 17:09:11 +02:00
gnss
gpio gpiolib: Preserve desc->flags when setting state 2019-07-29 00:57:39 +02:00
gpu drm/i915/perf: allow holding preemption on filtered ctx 2019-10-14 21:30:28 +01:00
hid Linux 5.2 2019-07-15 09:42:32 -07:00
hsi
hv proc/sysctl: add shared variables for range check 2019-07-18 17:08:07 -07:00
hwmon hwmon: (nct6775) Fix register address and added missed tolerance for nct6106 2019-07-21 19:18:45 -07:00
hwspinlock hwspinlock: add the 'in_atomic' API 2019-06-29 21:08:14 -07:00
hwtracing coresight: Make the coresight_device_fwnode_match declaration's fwnode parameter const 2019-07-12 14:42:05 -07:00
i2c i2c: s3c2410: Mark expected switch fall-through 2019-08-01 22:24:16 +02:00
i3c * Drop support for 10-bit I2C addresses 2019-07-09 09:04:31 -07:00
ide It's been a relatively busy cycle for docs: 2019-07-09 12:34:26 -07:00
idle
iio Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
infiniband RDMA/hns: Fix error return code in hns_roce_v1_rsv_lp_qp() 2019-08-01 12:53:53 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2019-07-20 12:22:30 -07:00
interconnect
iommu virtio, vhost: bugfixes 2019-07-29 11:34:12 -07:00
ipack TTY / Serial driver updates for 5.3-rc1 2019-07-11 15:38:21 -07:00
irqchip irqchip fixes for 5.3 2019-08-01 20:21:00 +02:00
isdn ISDN: hfcsusb: checking idx of ep configuration 2019-07-15 11:10:31 -07:00
leds LED updates for 5.3-rc1 2019-07-09 08:59:39 -07:00
lightnvm lightnvm: fix uninitialized pointer in nvm_remove_tgt() 2019-06-21 03:14:30 -06:00
macintosh drivers/macintosh/smu.c: Mark expected switch fall-through 2019-07-31 21:44:45 +10:00
mailbox - stm32: race fix by adding a spinlock 2019-07-14 16:36:51 -07:00
mcb
md dm table: fix various whitespace issues with recent DAX code 2019-07-30 18:59:24 -04:00
media media updates for v5.3-rc1 2019-07-22 09:01:47 -07:00
memory Kbuild updates for v5.3 (2nd) 2019-07-20 09:34:55 -07:00
memstick MMC core: 2019-07-11 18:11:21 -07:00
message SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
mfd - Core Frameworks 2019-07-15 20:18:40 -07:00
misc misc/mei/hdcp: Fill transcoder index in port info 2019-08-30 14:08:29 +05:30
mmc mmc: mmc_spi: Enable stable writes 2019-07-22 15:31:00 +02:00
mtd NAND: 2019-08-04 16:37:08 -07:00
mux
net Wimplicit-fallthrough patches for 5.3-rc2 2019-07-27 11:04:18 -07:00
nfc nfc: st-nci: remove redundant assignment to variable r 2019-07-02 12:00:50 -07:00
ntb New feature to add support for NTB virtual MSI interrupts, the ability 2019-07-21 09:46:59 -07:00
nubus
nvdimm libnvdimm fixes v5.3-rc2 2019-07-27 08:25:51 -07:00
nvme Revert "nvme-pci: don't create a read hctx mapping without read queues" 2019-07-23 17:47:02 +02:00
nvmem Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
of virtio, vhost: fixes, features, performance 2019-07-17 11:26:09 -07:00
opp pci-v5.3-changes 2019-07-15 20:44:49 -07:00
oprofile vfs: Convert oprofilefs to use the new mount API 2019-07-04 22:01:59 -04:00
parisc
parport It's been a relatively busy cycle for docs: 2019-07-09 12:34:26 -07:00
pci New feature to add support for NTB virtual MSI interrupts, the ability 2019-07-21 09:46:59 -07:00
pcmcia It's been a relatively busy cycle for docs: 2019-07-09 12:34:26 -07:00
perf drivers/perf: arm_pmu: Fix failure path in PM notifier 2019-07-29 11:43:48 +01:00
phy phy: for 5.3 2019-07-01 15:04:59 +02:00
pinctrl This is the bulk of pin control changes for the v5.3 kernel 2019-07-13 15:02:27 -07:00
platform platform/x86: pcengines-apuv2: use KEY_RESTART for front button 2019-07-29 18:24:59 +03:00
pnp docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
power power supply and reset changes for the v5.3 series 2019-07-15 21:06:15 -07:00
powercap powercap: Invoke powercap_init() and rapl_init() earlier 2019-07-22 11:23:00 +02:00
pps drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl 2019-07-16 19:23:24 -07:00
ps3
ptp
pwm pwm: Changes for v5.3-rc1 2019-07-09 08:57:45 -07:00
rapidio Merge branch 'akpm' (patches from Andrew) 2019-07-17 08:58:04 -07:00
ras
regulator - Core Frameworks 2019-07-15 20:18:40 -07:00
remoteproc remoteproc updates for v5.3 2019-07-17 11:44:41 -07:00
reset ARM: SoC-related driver updates 2019-07-19 17:13:56 -07:00
rpmsg
rtc RTC for 5.3 2019-07-17 10:03:50 -07:00
s390 s390 updates for 5.3-rc3 2019-08-02 15:13:27 -07:00
sbus
scsi SCSI fixes on 20190802 2019-08-02 14:46:33 -07:00
sfi
sh
siox
slimbus
sn
soc Merge branch 'pdf_fixes_v1' of https://git.linuxtv.org/mchehab/experimental into mauro 2019-07-22 13:51:20 -06:00
soundwire soundwire updates for v5.3-rc1 2019-07-05 08:15:08 +02:00
spi Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
spmi
ssb ssb/gpio: Remove unnecessary WARN_ON from driver_gpio 2019-06-25 08:05:34 +03:00
staging docs conversion for v5.3-rc1 2019-07-16 12:21:41 -07:00
target scsi: target: cxgbit: add support for IEEE_8021QAZ_APP_SEL_STREAM selector 2019-07-22 17:04:20 -04:00
tc
tee
thermal int340X/processor_thermal_device: Fix proc_thermal_rapl_remove() 2019-07-23 09:36:07 +02:00
thunderbolt Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
tty TTY fixes for 5.3-rc2 2019-07-28 10:18:33 -07:00
uio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
usb xhci: Fix crash if scatter gather is used with Immediate Data Transfer (IDT). 2019-07-25 11:26:42 +02:00
uwb treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
vfio VFIO updates for v5.3-rc1 2019-07-17 11:23:13 -07:00
vhost vhost: disable metadata prefetch optimization 2019-07-26 07:49:29 -04:00
video video: omapfb2: Make standard and custom panel drivers mutually exclusive 2019-08-16 21:10:09 +02:00
virt
virtio Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
visorbus bus_find_device: Unify the match callback with class_find_device 2019-06-24 05:22:31 +02:00
vlynq
vme
w1 docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
watchdog watchdog: digicolor_wdt: Remove unused variable in dc_wdt_probe 2019-07-15 08:49:11 +02:00
xen xen: fixes for 5.3-rc3 2019-08-02 15:26:48 -07:00
zorro
Kconfig
Makefile