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gpu: nvgpu: Add timeouts_disabled_refcount for enabling timeout

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-timeouts will be enabled only when timeouts_disabled_refcount
 will reach 0
-timeouts_enabled debugfs will change from u32 type to file type
 to avoid race enabling/disabling timeout from debugfs and ioctl
-unify setting timeouts_enabled from debugfs and ioctl

Bug 1982434

Change-Id: I54bab778f1ae533872146dfb8d80deafd2a685c7
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1588690
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Seema Khowala
2017-10-30 14:15:51 -07:00
committed by mobile promotions
parent ac687c95d3
commit 982fcfa737
7 changed files with 91 additions and 29 deletions
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13
drivers/gpu/nvgpu/common/linux/driver_common.c
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@@ -96,12 +96,15 @@ static void nvgpu_init_timeout(struct gk20a *g)
{
struct gk20a_platform *platform = dev_get_drvdata(dev_from_gk20a(g));
g->gr_idle_timeout_default = NVGPU_DEFAULT_GR_IDLE_TIMEOUT;
if (nvgpu_platform_is_silicon(g))
g->timeouts_enabled = true;
else if (nvgpu_platform_is_fpga(g)) {
g->timeouts_disabled_by_user = false;
nvgpu_atomic_set(&g->timeouts_disabled_refcount, 0);
if (nvgpu_platform_is_silicon(g)) {
g->gr_idle_timeout_default = NVGPU_DEFAULT_GR_IDLE_TIMEOUT;
} else if (nvgpu_platform_is_fpga(g)) {
g->gr_idle_timeout_default = GK20A_TIMEOUT_FPGA;
g->timeouts_enabled = true;
} else {
g->gr_idle_timeout_default = (u32)ULONG_MAX;
}
g->ch_wdt_timeout_ms = platform->ch_wdt_timeout_ms;
}