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gpu: nvgpu: Disable watchdog for in-kernel CE channels

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Getting a timeout on kernel's own CE channels is unrecoverable.
Vidmem freeing also depends on CE to clear pages that have been
used so that they can be reused.

Disable watchdog on kernel's CE channels.

Bug 200287270

Change-Id: I87e0aa925d6d20485a5a19d2a6bfd050de34e968
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1454208
(cherry picked from commit 2ff3a9f374)
Reviewed-on: http://git-master/r/1457402
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Terje Bergstrom
2017-04-03 09:41:41 -07:00
committed by mobile promotions
parent 873e1b81bf
commit 98a7cc5831
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
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@@ -450,7 +450,8 @@ u32 gk20a_ce_create_context_with_cb(struct device *dev,
if (!ce_ctx->ch) { if (!ce_ctx->ch) {
gk20a_err(ce_ctx->dev, "ce: gk20a channel not available"); gk20a_err(ce_ctx->dev, "ce: gk20a channel not available");
goto end; goto end;
} }
ce_ctx->ch->wdt_enabled = false;
/* bind the channel to the vm */ /* bind the channel to the vm */
err = __gk20a_vm_bind_channel(&g->mm.ce.vm, ce_ctx->ch); err = __gk20a_vm_bind_channel(&g->mm.ce.vm, ce_ctx->ch);