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d6278955f66dbfb5f992f9298e32ca86d66c6259
linux-nvgpu/drivers/gpu/nvgpu/os/linux
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Preetham Chandru R d6278955f6 gpu: nvgpu: RDMA implementation 
This change adds RDMA supports for tegra iGPU.
1. Cuda Process allocates the memory and passes
   the VA and size to the custom kernel driver.
2. The custom kernel driver maps the user allocated
   buf and does the DMA to/from it.
3. Only supports iGPU + cudaHostAlloc sysmem
4. Works only for a given process.
5. Address should be sysmem page aligned and size should
   be multiple of sysmem page size.
6. The custom kernel driver must register a free_callback when get_page()
   function is called.

Bug 200438879

Signed-off-by: Preetham Chandru R <pchandru@nvidia.com>
Change-Id: I43ec45734eb46d30341d0701550206c16e051106
Reviewed-on: https://git-master.nvidia.com/r/1953780
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2018-11-29 14:36:30 -08:00
..
vgpu
gpu: nvgpu: vgpu: support clk-arb
2018-09-27 15:04:47 -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: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
cde.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
channel.h
gpu: nvgpu: fix channel include guards
2018-08-30 21:43:01 -07:00
clk.c
gpu: nvgpu: support for clk.measure_freq for igpu
2018-09-28 23:04:32 -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: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
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
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -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: 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_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: Standardize HAS_SYNCPOINTs check
2018-09-27 15:04:38 -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: Standardize HAS_SYNCPOINTs check
2018-09-27 15:04:38 -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: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
ioctl_ctrl.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
ioctl_dbg.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -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: do nothing on invalid tsg release
2018-09-28 22:40:12 -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: move header location of gk20a.h
2018-09-25 13:10:19 -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: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
linux-dma.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -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: Add reboot handler
2018-10-29 19:08:48 -07:00
module.h
gpu: nvgpu: use devm variants to ioremap
2018-07-06 13:24:45 -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
gpu: nvgpu: Standardize HAS_SYNCPOINTs check
2018-09-27 15:04:38 -07:00
nvidia_p2p.c
gpu: nvgpu: RDMA implementation
2018-11-29 14:36:30 -08:00
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: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
os_ops_gm20b.c
gpu: nvgpu: move gm20b clk debugfs to linux
2018-09-05 04:51:40 -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: Standardize HAS_SYNCPOINTs check
2018-09-27 15:04:38 -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: move header location of gk20a.h
2018-09-25 13:10:19 -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
nvgpu: gpu: Support multiple tpc-pg masks.
2018-09-26 22:24:52 -07:00
platform_gp10b_tegra.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -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
nvgpu: gpu: Support multiple tpc-pg masks.
2018-09-26 22:24:52 -07:00
rwsem.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
scale.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
scale.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
sched.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
sched.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
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: gpu: Support multiple tpc-pg masks.
2018-09-26 22:24:52 -07:00
sysfs.h
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
thread.c
gpu: nvgpu: Move Linux files away from common
2018-06-15 17:47:31 -07:00
timers.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00
vm.c
gpu: nvgpu: move header location of gk20a.h
2018-09-25 13:10:19 -07:00