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gpu: nvgpu: rmmod support in dgpu simulation

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Changes added to support "rmmod nvgpu" in dgpu simulation after gpu
poweron.

nvgpu_engine-wait_for_idle got stuck in busy mode for nvdec and nvec
engines in simulation as simulation doesnt support timeout.
These engines are not valid engines in nvgpu engine list.
Add nvgpu_engine_check_valid_id before checking engine status.

Simulation crash on accessing 0xb81604 top interrupt register.
Add func_priv_cpu_intr_top__size_1_v() function to get the supported
size than using default MAX_INTR_TOP_REGS.

nvlink is not supprted in dgpu simulation. Avoid warning for
-ENODEV return.

Avoid register read following gpu power off completion.

Bug 2498574

Change-Id: I9f9f1cf1ac4620242bda1d2cc0f29f51f81a6711
Signed-off-by: vinodg <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2179930
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
vinodg
2019-08-20 23:58:23 -07:00
committed by mobile promotions
parent d93e82dedb
commit 087d4d3df4
6 changed files with 17 additions and 10 deletions
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4
drivers/gpu/nvgpu/common/fifo/engines.c
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@@ -438,6 +438,10 @@ int nvgpu_engine_wait_for_idle(struct gk20a *g)
}
for (i = 0; i < host_num_engines; i++) {
if (!nvgpu_engine_check_valid_id(g, i)) {
continue;
}
ret = -ETIMEDOUT;
do {
g->ops.engine_status.read_engine_status_info(g, i,