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0a9f633fc3d5a8d9d397d540191a50c00a00385a
linux-nvgpu/drivers/gpu/nvgpu/os/linux
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Thomas Fleury 95bb19827e gpu: nvgpu: add sw quiesce 
For safety build, nvgpu driver should enter SW quiesce state
in case an uncorrectable error has occurred. In this state, any
activity on the GPU should be prevented, without powering off the GPU.
Also, a minimal set of operations should be used to enter SW quiesce
state.

Entering SW quiesce state does the following:
- set sw_quiesce_pending: when this flag is set, interrupt
  handlers exit after masking interrupts. This should help mitigate
  an interrupt storm.
- wake up thread to complete quiescing.

The thread performs the following:
- set NVGPU_DRIVER_IS_DYING to prevent allocation of new resources
- disable interrupts
- disable fifo scheduling
- preempt all runlists
- set error notifier for all active channels

Note: for channels with usermode submit enabled, userspace can
still ring doorbell, but this will not trigger any work on
engines since fifo scheduling is disabled.

Jira NVGPU-3493

Change-Id: I639a32da754d8833f54dcec1fa23135721d8d89a
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2172391
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-08-27 10:37:21 -07:00
..
sdl
gpu: nvgpu: SWUD for SDL unit
2019-07-19 00:05:40 -07:00
vgpu
gpu: nvgpu: init: rename init functions
2019-07-23 13:27:18 -07:00
bsearch.c
gpu: nvgpu: Add nvgpu_bsearch() wrapper
2019-01-29 21:55:37 -08:00
cde_gm20b.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
cde_gm20b.h
gpu: nvgpu: linux: move os ops to a common file
2018-08-29 20:34:34 -07:00
cde_gp10b.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
cde_gp10b.h
gpu: nvgpu: linux: move os ops to a common file
2018-08-29 20:34:34 -07:00
cde.c
gpu: nvgpu: Add doxygen documentation in runlist.h
2019-06-24 17:36:29 -07:00
cde.h
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
channel.h
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
clk.c
gpu: nvgpu: compiled out clk_arb unit
2019-07-01 07:05:18 -07:00
clk.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
comptags.c
gpu: nvgpu: fb: size of compression apis for mm
2019-03-18 20:19:10 -07:00
cond.c
gpu: nvgpu: nvgpu_cond_signal to return void
2019-01-31 12:04:10 -08:00
debug_allocator.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_allocator.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_bios.c
gpu: nvgpu: power-on dGPU to report VBIOS version
2019-07-10 15:26:08 -07:00
debug_bios.h
gpu: nvgpu: add bios debugfs node
2018-06-27 07:30:06 -07:00
debug_cde.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_cde.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_ce.c
gpu: nvgpu: move ce code to common/ce and hal/ce
2019-04-19 13:55:11 -07:00
debug_ce.h
gpu: nvgpu: move ce code to common/ce and hal/ce
2019-04-19 13:55:11 -07:00
debug_clk_gm20b.c
gpu: nvgpu: create nvgpu.common.hal.clk
2019-04-22 14:15:22 -07:00
debug_clk_gm20b.h
gpu: nvgpu: move gm20b clk debugfs to linux
2018-09-05 04:51:40 -07:00
debug_clk_tu104.c
gpu: nvgpu: Initialize clk counters for dGPU clocks
2019-07-26 04:07:01 -07:00
debug_clk_tu104.h
gpu: nvgpu: Initialize clk counters for dGPU clocks
2019-07-26 04:07:01 -07:00
debug_fecs_trace.c
gpu: nvgpu: move fecs_trace operations under gr
2019-03-16 05:05:41 -07:00
debug_fecs_trace.h
gpu: nvgpu: rename feature Make and C flags
2019-06-11 09:46:24 -07:00
debug_fifo.c
gpu: nvgpu: rename tsg_gk20a*/gk20a_tsg* functions.
2019-05-17 01:49:27 -07:00
debug_fifo.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_gr.c
gpu: nvgpu: Add gr_priv header file
2019-04-22 03:15:09 -07:00
debug_gr.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_hal.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_hal.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_kmem.c
gpu: nvgpu: Fix LibC MISRA 17.7 in os/linux
2018-10-31 15:25:23 -07:00
debug_kmem.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_ltc.c
gpu: nvgpu: ltc: create sub-unit for ltc intr
2019-03-27 10:26:02 -07:00
debug_ltc.h
gpu: nvgpu: debugfs node to enable/disable ltc_illegal_compstat intr
2018-07-24 16:10:58 -07:00
debug_pmgr.c
gpu: nvgpu: Split pmgr.h into private and public
2019-01-10 20:09:38 -08:00
debug_pmgr.h
gpu: nvgpu: move pmgr debugfs to linux
2018-09-05 04:51:50 -07:00
debug_pmu.c
gpu: nvgpu: Protect elpg_stat access
2019-06-04 14:15:08 -07:00
debug_pmu.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_s_param.c
gpu: nvgpu: Debugfs for S_param
2019-02-11 20:55:07 -08:00
debug_s_param.h
gpu: nvgpu: Debugfs for S_param
2019-02-11 20:55:07 -08:00
debug_sched.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_sched.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_therm_tu104.c
gpu: nvgpu: Move from TSENSE to TSOSC for TU104
2019-06-13 23:05:43 -07:00
debug_therm_tu104.h
gpu: nvgpu: Move from TSENSE to TSOSC for TU104
2019-06-13 23:05:43 -07:00
debug_volt.c
gpu: nvgpu: Read current_volt from vol_rail_get_status
2019-07-29 05:30:28 -07:00
debug_volt.h
gpu: nvgpu: Debugfs for Volt
2019-02-01 09:45:57 -08:00
debug_xve.c
gpu: nvgpu: Fix LibC MISRA 17.7 in os/linux
2018-10-31 15:25:23 -07:00
debug_xve.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug.c
gpu: nvgpu: init: rename init functions
2019-07-23 13:27:18 -07:00
dmabuf_vidmem.c
gpu: nvgpu; fix MISRA errors in nvgpu.common.mm
2019-08-01 21:57:18 -07:00
dmabuf_vidmem.h
gpu: nvgpu: compile out vidmem from safety build
2019-06-25 04:37:08 -07:00
dmabuf.c
gpu: nvgpu: compile out vidmem from safety build
2019-06-25 04:37:08 -07:00
dmabuf.h
gpu: nvgpu: Create hal.mm.mm for misc MM HALs
2019-05-01 15:06:57 -07:00
driver_common.c
gpu: nvgpu: check Board ID and VBIOS version
2019-08-23 04:18:13 -07:00
driver_common.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
dt.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
ecc_sysfs.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
fecs_trace_linux.c
gpu: nvgpu: init: rename init functions
2019-07-23 13:27:18 -07:00
fecs_trace_linux.h
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
firmware.c
gpu: nvgpu: firmware: use u32 for flags
2019-02-20 23:05:04 -08:00
fuse.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
intr.c
gpu: nvgpu: add sw quiesce
2019-08-27 10:37:21 -07:00
intr.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
io_usermode.c
gpu: nvgpu: move usermode to hal/fifo
2019-04-16 13:04:27 -07:00
ioctl_as.c
gpu: nvgpu: compile-out debug unit
2019-06-21 04:35:25 -07:00
ioctl_as.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
ioctl_channel.c
gpu: nvgpu: rename channel functions
2019-08-01 04:37:31 -07:00
ioctl_channel.h
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
ioctl_clk_arb.c
gpu: nvgpu: fix MISRA issues nvgpu.common.clk_arb
2019-07-12 15:55:49 -07:00
ioctl_ctrl.c
gpu: nvgpu: init: rename init functions
2019-07-23 13:27:18 -07:00
ioctl_ctrl.h
gpu: nvgpu: provide usermode region via mmap
2018-10-29 08:04:25 -07:00
ioctl_dbg.c
gpu: nvgpu: init: rename init functions
2019-07-23 13:27:18 -07:00
ioctl_dbg.h
gpu: nvgpu: Clean up ioctl_dbg.h
2018-07-05 21:48:44 -07:00
ioctl_tsg.c
gpu: nvgpu: init: rename init functions
2019-07-23 13:27:18 -07:00
ioctl_tsg.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
ioctl.c
gpu: nvgpu: rename feature Make and C flags
2019-06-11 09:46:24 -07:00
ioctl.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
kmem_priv.h
gpu: nvgpu: MISRA 14.4 boolean fixes
2018-11-07 10:35:13 -08:00
kmem.c
gpu: nvgpu: fix MISRA violations in kmem unit
2019-05-03 13:08:00 -07:00
linux-channel.c
gpu: nvgpu: rename channel functions
2019-08-01 04:37:31 -07:00
linux-dma.c
gpu: nvgpu; fix MISRA errors in nvgpu.common.mm
2019-08-01 21:57:18 -07:00
linux-io.c
gpu: nvgpu: init: move out linux-specific APIs
2019-07-23 13:27:29 -07:00
log.c
gpu: nvgpu: posix: fix ARR30 CERT C violation
2019-06-06 16:27:23 -07:00
module_usermode.c
gpu: nvgpu: move usermode to hal/fifo
2019-04-16 13:04:27 -07:00
module_usermode.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
module.c
gpu: nvgpu: add sw quiesce
2019-08-27 10:37:21 -07:00
module.h
gpu: nvgpu: add sw quiesce
2019-08-27 10:37:21 -07:00
nvgpu_mem.c
gpu: nvgpu: compile out vidmem from safety build
2019-06-25 04:37:08 -07:00
nvhost_priv.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
nvhost.c
gpu: nvgpu: delete value tracking in syncpt wait API
2019-08-19 07:07:18 -07:00
nvidia_p2p.c
gpu: nvgpu: add compatibility version
2019-03-07 11:45:07 -08:00
nvlink_probe.c
gpu: nvgpu: rename feature Make and C flags
2019-06-11 09:46:24 -07:00
nvlink.c
gpu: nvgpu: rename feature Make and C flags
2019-06-11 09:46:24 -07:00
nvlink.h
gpu: nvgpu: shutdown nvlink in driver remove
2018-07-26 00:06:07 -07:00
os_fence_android_sema.c
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
os_fence_android_syncpt.c
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
os_fence_android.c
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
os_linux.h
gpu: nvgpu: Implement Thermal Alert for PG189
2019-05-28 03:15:22 -07:00
os_ops_gm20b.c
gpu: nvgpu: fecs ctxsw trace for gm20b
2019-04-22 05:25:48 -07:00
os_ops_gm20b.h
gpu: nvgpu: linux: move os ops to a common file
2018-08-29 20:34:34 -07:00
os_ops_gp10b.c
gpu: nvgpu: move fecs trace debugfs to linux
2018-09-09 17:22:24 -07:00
os_ops_gp10b.h
gpu: nvgpu: linux: move os ops to a common file
2018-08-29 20:34:34 -07:00
os_ops_gv11b.c
gpu: nvgpu: move fecs trace debugfs to linux
2018-09-09 17:22:24 -07:00
os_ops_gv11b.h
gpu: nvgpu: move fecs trace debugfs to linux
2018-09-09 17:22:24 -07:00
os_ops_gv100.c
gpu: nvgpu: Initialize clk counters for dGPU clocks
2019-07-26 04:07:01 -07:00
os_ops_gv100.h
gpu: nvgpu: move gp106 clk debugfs to linux
2018-09-05 04:51:36 -07:00
os_ops_tu104.c
gpu: nvgpu: Initialize clk counters for dGPU clocks
2019-07-26 04:07:01 -07:00
os_ops_tu104.h
gpu: nvgpu: Remove the GPU-NEXT conditional
2018-11-08 19:35:09 -08:00
os_ops.c
gpu: nvgpu: Remove support for GP106
2018-12-13 04:56:14 -08:00
os_ops.h
gpu: nvgpu: linux: move os ops to a common file
2018-08-29 20:34:34 -07:00
os_sched.c
gpu: nvgpu: Fix MISRA 21.2 violations in log.h
2019-05-15 22:29:40 -07:00
pci_power.c
gpu: nvgpu: add sw quiesce
2019-08-27 10:37:21 -07:00
pci_power.h
gpu: nvgpu: add interface to power on-off gpu
2018-10-12 17:35:10 +05:30
pci.c
gpu: nvgpu: check Board ID and VBIOS version
2019-08-23 04:18:13 -07:00
pci.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
platform_gk20a_tegra.c
gpu: nvgpu: alloc space for PMU's struct nvgpu_pmu at runtime
2019-05-23 00:56:55 -07:00
platform_gk20a_tegra.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
platform_gk20a.h
gpu: nvgpu: check Board ID and VBIOS version
2019-08-23 04:18:13 -07:00
platform_gp10b_tegra.c
Revert "gpu: nvgpu: cache gpu clk rate"
2019-05-06 16:46:00 -07:00
platform_gp10b.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
platform_gv11b_tegra.c
gpu: nvgpu: Use TPC_PG_MASK to powergate the TPC
2019-08-12 00:47:55 -07:00
rwsem.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
scale.c
gpu: nvgpu: Re-factor perfmon unit
2019-04-10 06:03:59 -07:00
scale.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
sched.c
gpu: nvgpu: init: rename init functions
2019-07-23 13:27:18 -07:00
sched.h
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
sim_pci.c
gpu: nvgpu: rmmod support in dgpu simulation
2019-08-21 23:38:56 -07:00
sim.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
soc.c
Revert "Revert "gpu: nvgpu: Improve accuracy of dGPU clk measurement""
2019-07-24 10:16:30 -07:00
sync_sema_android.c
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
sync_sema_android.h
gpu: nvgpu: rename tsg_gk20a and channel_gk20a structs
2019-05-06 02:56:53 -07:00
sysfs.c
gpu: nvgpu: Use TPC_PG_MASK to powergate the TPC
2019-08-12 00:47:55 -07:00
sysfs.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
thread.c
gpu: nvgpu: Implement graceful thread stop
2019-01-25 01:35:29 -08:00
timers.c
gpu: nvgpu: fix MISRA 10.5 issue in timeout code
2019-07-24 17:04:38 -07:00
vm.c
nvgpu: gpu: Fix misra rule 10.3 in vm unit
2019-08-22 14:07:25 -07:00