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f0fca24ffb03c14647e03d611b901bf02426c37a
linux-nvgpu/drivers/gpu/nvgpu/os/linux
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Debarshi Dutta f0fca24ffb gpu: nvgpu: avoid double mapping of usermode mmap region 
gk20a_pm_runtime_suspend can fail and invoke gk20a_pm_finalize_poweron
that can cause double mapping of the usermode mmap region via
io_remap_pfn_range(). Avoid this by using a boolean variable to track
whether the region is already mapped.

Bug 2707416
Bug 200582208

Change-Id: I4d8cbe427400a5b986348a19af145367cc08ffc6
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2229312
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2283801
Reviewed-by: Kajetan Dutka <kdutka@nvidia.com>
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-by: Amulya Yarlagadda <ayarlagadda@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: Kajetan Dutka <kdutka@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2020-01-24 03:41:52 -08:00
..
vgpu
gpu: nvgpu: track opened Linux ctrl files
2019-08-15 00:58:25 -07:00
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 CHANNEL_SETUP_BIND IOCTL
2019-08-15 00:57:45 -07:00
cde.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
channel.h
gpu: nvgpu: support usermode submit buffers
2019-08-15 00:58:54 -07:00
clk.c
nvgpu: fix get_maxrate when no dvfs
2019-10-14 08:32:07 -07:00
clk.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
comptags.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
cond.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
ctxsw_trace.c
gpu: nvgpu: add fecs flag in poweron
2020-01-17 01:39:21 -08:00
ctxsw_trace.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
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: add bios debugfs node
2018-06-27 07:30:06 -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 Linux files away from common
2018-06-15 17:47:31 -07:00
debug_ce.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_clk_gm20b.c
gpu: nvgpu: restrict devfreq during active clk_arb set requests
2018-09-20 10:50:25 -07:00
debug_clk_gm20b.h
gpu: nvgpu: move gm20b clk debugfs to linux
2018-09-05 04:51:40 -07:00
debug_clk_gp106.c
gpu: nvgpu: move gp106 clk debugfs to linux
2018-09-05 04:51:36 -07:00
debug_clk_gp106.h
gpu: nvgpu: move gp106 clk debugfs to linux
2018-09-05 04:51:36 -07:00
debug_clk_gv100.c
gpu: nvgpu:Add sysfs node for GV100 clocks
2018-09-27 04:54:44 -07:00
debug_clk_gv100.h
gpu: nvgpu: Define functions static if DEBUG_FS=n
2018-10-25 03:53:54 -07:00
debug_fecs_trace.c
gpu: nvgpu: move fecs trace debugfs to linux
2018-09-09 17:22:24 -07:00
debug_fecs_trace.h
gpu: nvgpu: Define functions static if DEBUG_FS=n
2018-10-25 03:53:54 -07:00
debug_fifo.c
gpu: nvgpu: move channel header to common
2018-09-05 20:40:32 -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: Move Linux files away from common
2018-06-15 17:47:31 -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: Move Linux files away from common
2018-06-15 17:47:31 -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: move header location of gk20a.h
2018-09-25 13:10:19 -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: move pmgr debugfs to linux
2018-09-05 04:51:50 -07:00
debug_pmgr.h
gpu: nvgpu: move pmgr debugfs to linux
2018-09-05 04:51:50 -07:00
debug_pmu.c
nvgpu: vgpu: no debugfs entries that rely on PMU
2019-10-14 19:09:53 -07:00
debug_pmu.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_sched.c
gpu: nvgpu: add struct nvgpu_sched_ctrl to gk20a
2020-01-22 09:10:37 -08:00
debug_sched.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
debug_therm_gp106.c
gpu: nvgpu: move therm debugfs to linux
2018-09-05 04:51:43 -07:00
debug_therm_gp106.h
gpu: nvgpu: Define functions static if DEBUG_FS=n
2018-10-25 03:53:54 -07:00
debug_xve.c
gpu: nvgpu: add missing timer includes
2018-08-24 14:57:57 -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: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
dmabuf_vidmem.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
dmabuf_vidmem.h
gpu: nvpgu: Rename Linux specific vidmem code
2018-07-05 21:48:56 -07:00
dmabuf.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
dmabuf.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
driver_common.c
gpu: nvgpu: track opened Linux ctrl files
2019-08-15 00:58:25 -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
firmware.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
fuse.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
intr.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -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 header location of gk20a.h
2018-09-25 13:10:19 -07:00
io.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
ioctl_as.c
gpu: nvgpu: Standardize HAS_SYNCPOINTs check
2018-09-27 15:04:38 -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: support usermode submit buffers
2019-08-15 00:58:54 -07:00
ioctl_channel.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
ioctl_clk_arb.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
ioctl_ctrl.c
gpu: nvgpu: avoid double mapping of usermode mmap region
2020-01-24 03:41:52 -08:00
ioctl_ctrl.h
gpu: nvgpu: provide usermode region via mmap
2019-08-15 00:58:34 -07:00
ioctl_dbg.c
gpu: nvgpu: remove gk20a_is_channel_marked_as_tsg
2019-03-18 11:30:16 -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: add struct nvgpu_sched_ctrl to gk20a
2020-01-22 09:10:37 -08:00
ioctl_tsg.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
ioctl.c
gpu: nvgpu: provide usermode region via mmap
2019-08-15 00:58:34 -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: Move Linux files away from common
2018-06-15 17:47:31 -07:00
kmem.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
linux-channel.c
gpu: nvgpu: support usermode submit buffers
2019-08-15 00:58:54 -07:00
linux-dma.c
gpu: nvgpu: add FOREIGN_SGT mem flag
2019-08-15 00:58:44 -07:00
log.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
ltc.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
module_usermode.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -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: fix gk20a_busy_noresume and gk20a_idle_nosuspend
2019-11-21 09:24:11 -08:00
module.h
gpu: nvgpu: store bus addr of gpu regs
2019-08-15 00:58:05 -07:00
nvgpu_mem.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
nvhost_priv.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
nvhost.c
nvgpu: Change the path in the dependent files
2019-05-03 13:43:59 -07:00
nvidia_p2p.c
gpu: nvgpu: add compatibility version
2019-03-13 14:43:56 -07:00
nvlink.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -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: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
os_fence_android_syncpt.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
os_fence_android.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
os_linux.h
gpu: nvgpu: add struct nvgpu_sched_ctrl to gk20a
2020-01-22 09:10:37 -08:00
os_ops_gm20b.c
gpu: nvgpu: fecs ctxsw trace for gm20b
2019-05-14 14:59:33 -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_gp106.c
gpu: nvgpu: move fecs trace debugfs to linux
2018-09-09 17:22:24 -07:00
os_ops_gp106.h
gpu: nvgpu: move gp106 clk debugfs to linux
2018-09-05 04:51:36 -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:Add sysfs node for GV100 clocks
2018-09-27 04:54:44 -07:00
os_ops_gv100.h
gpu: nvgpu: move gp106 clk debugfs to linux
2018-09-05 04:51:36 -07:00
os_ops.c
gpu: nvgpu: move fecs trace debugfs to linux
2018-09-09 17:22:24 -07:00
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: add API to print process name
2018-06-19 10:43:10 -07:00
pci_usermode.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
pci_usermode.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
pci.c
gpu: nvgpu: disable PG189 dGPU
2019-10-28 15:55:10 -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: Add support for XPU rail split
2019-09-04 12:02:38 -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: Use TPC_PG_MASK to powergate the TPC
2019-08-02 12:57:24 -07:00
platform_gp10b_tegra.c
gpu: nvgpu: Add support for XPU rail split
2019-09-04 12:02:38 -07:00
platform_gp10b_tegra.h
gpu: nvgpu: rework ecc structure and sysfs
2018-07-19 16:43:58 -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: Add support for XPU rail split
2019-09-04 12:02:38 -07:00
rwsem.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
scale.c
gpu: nvgpu: using pmu counters for load estimate
2019-04-01 15:27:17 -07:00
scale.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
sched.c
gpu: nvgpu: add struct nvgpu_sched_ctrl to gk20a
2020-01-22 09:10:37 -08:00
sched.h
gpu: nvgpu: add struct nvgpu_sched_ctrl to gk20a
2020-01-22 09:10:37 -08:00
sim_pci.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
sim.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
soc.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
sync_sema_android.c
gpu: nvgpu: changing page_idx from int to u64
2018-09-06 21:42:11 -07:00
sync_sema_android.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
sysfs.c
nvgpu: fix railgate_enable_store
2019-10-25 10:10:30 -07:00
sysfs.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
thread.c
nvgpu: pmu: cleanup init thread on destroy
2018-12-15 17:41:55 -08:00
timers.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
vm.c
gpu: nvgpu: add platform atomic support
2020-01-08 08:35:30 -08:00
vpr.c
gpu: nvgpu: use vpr resize API
2019-08-30 01:24:52 -07:00