Alex Waterman 3fdd8e38b2 gpu: nvgpu: Use our own vmap() for coherent DMA buffers ...

For some reason the GPU does not like the mappings created by the
DMA API for coherent sysmem buffers. But a plain vmap() does seem
to work. To work around this, when we are using coherent sysmem,
force the NO_KERNEL_MAPPING flag to on and then make a vmap() in
the nvgpu DMA API wrapper. The rest of the driver will be none the
wiser but will work as expected.

This problem is not understood yet but it is being tracked in bug
2040115. Once this bug is understood this WAR should either be
determined as necessary or reverted with an appropriate fix.

Bug 2040115
JIRA EVLR-2333

Change-Id: Idae7a0c92441f0309df572ac18697af49bb6ff2b
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1657568
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2018-02-27 16:03:52 -08:00

..

vgpu

gpu: nvgpu: vgpu: move common files out of linux folder

2018-02-27 14:30:52 -08:00

cde_gm20b.c

gpu: nvgpu: Move rest of CDE structures to Linux

2017-10-17 10:43:39 -07:00

cde_gm20b.h

gpu: nvgpu: Move rest of CDE structures to Linux

2017-10-17 10:43:39 -07:00

cde_gp10b.c

gpu: nvgpu: Cleanup usage of bypass_smmu

2018-02-02 12:11:53 -08:00

cde_gp10b.h

gpu: nvgpu: Move rest of CDE structures to Linux

2017-10-17 10:43:39 -07:00

cde.c

gpu: nvgpu: Allow disabling CDE functionality

2018-02-15 14:11:46 -08:00

cde.h

gpu: nvgpu: Allow disabling CDE functionality

2018-02-15 14:11:46 -08:00

ce2.c

gpu: nvgpu: ce: store fences in a separate array

2018-01-26 10:50:37 -08:00

channel.c

gpu: nvgpu: support user fence updates

2018-02-26 03:48:14 -08:00

channel.h

gpu: nvgpu: move cycle state buffer handler to linux

2017-11-28 09:46:54 -08:00

clk_arb.c

gpu: nvgpu: remove linux dependent from pmu_gk20a.c

2017-11-30 23:53:31 -08:00

clk.c

gpu: nvgpu: vgpu: Implement clk.get_maxfreq

2017-11-14 15:46:58 -08:00

clk.h

gpu: nvgpu: Merge tegra/linux to common/linux

2017-06-20 19:14:15 -07:00

comptags.c

gpu: nvgpu: Add synchronization to comptag alloc and clearing

2017-11-15 13:26:19 -08:00

cond.c

gpu: nvgpu: Abstract condition variable

2017-05-12 16:09:05 -07:00

ctxsw_trace.c

gpu: nvgpu: move platform_gk20a.h to linux

2017-11-02 10:26:21 -07:00

ctxsw_trace.h

gpu: nvgpu: Split ctxsw_trace API into non-Linux component

2017-11-01 20:15:47 -07:00

debug_allocator.c

gpu: nvgpu: prevent crash during unbind

2017-09-22 15:44:25 -07:00

debug_allocator.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_cde.c

gpu: nvgpu: move platform_gk20a.h to linux

2017-11-02 10:26:21 -07:00

debug_cde.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_ce.c

gpu: nvgpu: Move debugfs fields to os_linux

2017-08-04 09:24:02 -07:00

debug_ce.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_clk.c

gpu: nvgpu: move platform_gk20a.h to linux

2017-11-02 10:26:21 -07:00

debug_fifo.c

gpu: nvgpu: Make graphics context property of TSG

2018-01-17 12:29:09 -08:00

debug_fifo.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_gr.c

gpu: nvgpu: Move debugfs fields to os_linux

2017-08-04 09:24:02 -07:00

debug_gr.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_hal.c

gpu: nvgpu: debugfs code to dump HAL functions

2017-08-24 09:34:52 -07:00

debug_hal.h

gpu: nvgpu: debugfs code to dump HAL functions

2017-08-24 09:34:52 -07:00

debug_kmem.c

gpu: nvgpu: Use config in makefile for debug_kmem.c

2017-10-13 15:20:24 -07:00

debug_kmem.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_mm.c

gpu: nvgpu: Move debugfs fields to os_linux

2017-08-04 09:24:02 -07:00

debug_mm.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_pmu.c

gpu: nvgpu: gv11b: Enable perfmon.

2018-01-18 23:40:02 -08:00

debug_pmu.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_sched.c

gpu: nvgpu: Move sched to be Linux specific

2017-10-20 10:05:29 -07:00

debug_sched.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

debug_xve.c

gpu: nvgpu: Move XVE debugfs code to Linux module

2017-09-12 13:00:19 -07:00

debug_xve.h

gpu: nvgpu: Move XVE debugfs code to Linux module

2017-09-12 13:00:19 -07:00

debug.c

gpu: nvgpu: Allow disabling CDE functionality

2018-02-15 14:11:46 -08:00

dma.c

gpu: nvgpu: Use our own vmap() for coherent DMA buffers

2018-02-27 16:03:52 -08:00

dmabuf.c

gpu: nvgpu: Add tracking of dma_buf_attachment

2018-02-01 13:54:08 -08:00

dmabuf.h

gpu: nvgpu: Add tracking of dma_buf_attachment

2018-02-01 13:54:08 -08:00

driver_common.c

gpu: nvgpu: Abstract kernel_restart()

2018-02-23 21:53:19 -08:00

driver_common.h

gpu: nvgpu: Use a callback to free struct gk20a

2017-11-06 10:06:40 -08:00

firmware.c

gpu: nvgpu: move platform_gk20a.h to linux

2017-11-02 10:26:21 -07:00

fuse.c

gpu: nvgpu: Add struct gk20a ptr to FUSE APIs

2017-08-14 11:18:31 -07:00

intr.c

gpu: nvgpu: replace wait_queue_head_t with nvgpu_cond

2017-10-16 13:35:04 -07:00

intr.h

gpu: nvgpu: Split non-stall interrupt handling

2017-06-07 20:07:00 -07:00

io_usermode.c

gpu: nvgpu: Fold T19x code back to main code paths

2018-01-22 22:20:15 -08:00

io.c

gpu: nvgpu: Fix crash on read fail of mc_boot_0_r

2017-12-28 03:01:48 -08:00

ioctl_as.c

gpu: nvgpu: add user API to get read-only syncpoint address map

2018-02-07 15:35:47 -08:00

ioctl_as.h

gpu: nvgpu: Hard code map_buffer_batch_limit

2017-11-13 10:56:54 -08:00

ioctl_channel.c

gpu: nvgpu: add user API to get a syncpoint

2018-02-26 03:48:11 -08:00

ioctl_channel.h

gpu: nvgpu: Remove support for channel events

2017-12-28 10:01:32 -08:00

ioctl_ctrl.c

gpu: nvgpu: add user API to get a syncpoint

2018-02-26 03:48:11 -08:00

ioctl_ctrl.h

gpu: nvgpu: Move ctrl IOCTL creation to Linux module

2017-04-02 08:28:22 -07:00

ioctl_dbg.c

gpu: nvgpu: add speculative load barrier (dbg IOCTLs)

2018-01-25 14:25:43 -08:00

ioctl_dbg.h

gpu: nvgpu: Hard code regops max batch size

2017-11-08 14:06:20 -08:00

ioctl_tsg.c

gpu: nvgpu: Fold T19x code back to main code paths

2018-01-22 22:20:15 -08:00

ioctl_tsg.h

gpu: nvgpu: Move sched to be Linux specific

2017-10-20 10:05:29 -07:00

ioctl.c

gpu: nvgpu: Fix ioctl.c w/ disabled ctxsw tracing

2017-12-01 08:38:17 -08:00

ioctl.h

gpu: nvgpu: Declare gk20a_user_*init() in ioctl.h

2017-10-10 13:40:53 -07:00

kmem_priv.h

gpu: nvgpu: move debugfs code to linux module

2017-06-02 06:53:35 -07:00

kmem.c

gpu: nvgpu: Smarter way to check vmalloc address

2018-01-24 14:42:42 -08:00

log.c

gpu: nvgpu: move platform_gk20a.h to linux

2017-11-02 10:26:21 -07:00

module_usermode.c

gpu: nvgpu: Fold T19x code back to main code paths

2018-01-22 22:20:15 -08:00

module_usermode.h

gpu: nvgpu: Fold T19x code back to main code paths

2018-01-22 22:20:15 -08:00

module.c

gpu: nvgpu: Use our own vmap() for coherent DMA buffers

2018-02-27 16:03:52 -08:00

module.h

gpu: nvgpu: Fold T19x code back to main code paths

2018-01-22 22:20:15 -08:00

nvgpu_mem.c

gpu: nvgpu: Use our own vmap() for coherent DMA buffers

2018-02-27 16:03:52 -08:00

nvhost_priv.h

gpu: nvgpu: add nvhost abstraction files

2017-06-08 06:37:15 -07:00

nvhost.c

gpu: nvgpu: add user API to get a syncpoint

2018-02-26 03:48:11 -08:00

nvlink.c

gpu: nvgpu: gv100: nvlink endpoint driver

2018-02-25 21:48:24 -08:00

os_linux.h

gpu: nvgpu: Cleanup usage of bypass_smmu

2018-02-02 12:11:53 -08:00

os_sched.c

gpu: nvgpu: Implement abstraction for finding TID

2017-12-28 10:02:09 -08:00

pci_usermode.c

gpu: nvgpu: Fold T19x code back to main code paths

2018-01-22 22:20:15 -08:00

pci_usermode.h

gpu: nvgpu: Fold T19x code back to main code paths

2018-01-22 22:20:15 -08:00

pci.c

gpu: nvgpu: Use our own vmap() for coherent DMA buffers

2018-02-27 16:03:52 -08:00

pci.h

gpu: nvgpu: Move Linux kernel driver code to module.c

2017-04-18 15:04:34 -07:00

platform_gk20a_tegra.c

gpu: nvgpu: Allow disabling CDE functionality

2018-02-15 14:11:46 -08:00

platform_gk20a_tegra.h

gpu: nvgpu: Use preallocated VPR buffer

2018-02-14 21:43:43 -08:00

platform_gk20a.h

gpu: nvgpu: Allow disabling CDE functionality

2018-02-15 14:11:46 -08:00

platform_gp10b_tegra.c

gpu: nvgpu: Allow disabling CDE functionality

2018-02-15 14:11:46 -08:00

platform_gp10b_tegra.h

gpu: nvgpu: gv11b: Report LTC errors per slice

2017-12-28 10:01:36 -08:00

platform_gv11b_tegra.c

gpu: nvgpu: Allow disabling CDE functionality

2018-02-15 14:11:46 -08:00

rwsem.c

gpu: nvgpu: Abstract rw_semaphore implementation

2017-10-14 14:13:18 -07:00

scale.c

gpu: nvgpu: move platform_gk20a.h to linux

2017-11-02 10:26:21 -07:00

scale.h

gpu: nvgpu: Move gk20a_scale to be Linux only

2017-11-01 10:55:41 -07:00

sched.c

gpu: nvgpu: add speculative load barrier (sched IOCTLs)

2018-01-25 14:25:47 -08:00

sched.h

gpu: nvgpu: Move sched to be Linux specific

2017-10-20 10:05:29 -07:00

sim.c

gpu: nvgpu: Remove extra CPU flushes in sim_gk20a.c

2017-12-01 09:55:22 -08:00

sim.h

gpu: nvgpu: files sim_gk20a.* are changed to sim.*

2017-11-30 01:28:11 -08:00

soc.c

gpu: nvgpu: wrapper for checking if bpmp running

2017-11-14 15:46:55 -08:00

sysfs.c

gpu: nvgpu: add g->sw_ready flag

2018-01-20 02:19:02 -08:00

sysfs.h

gpu: nvgpu: Move sysfs dependencies from HAL to Linux

2017-06-27 03:57:13 -07:00

thread.c

gpu: nvgpu: prevent crash during unbind

2017-09-22 15:44:25 -07:00

timers.c

gpu: nvgpu: move platform_gk20a.h to linux

2017-11-02 10:26:21 -07:00

vidmem.c

gpu: nvgpu: Include UAPI explicitly

2017-11-13 18:56:30 -08:00

vm.c

gpu: nvgpu: Use coherent aperture flag

2018-02-27 16:03:43 -08:00