mirror of
https://github.com/torvalds/linux.git
synced 2026-04-27 11:02:31 -04:00
0ef5c4e4db
Nouveau has code that when it gets an IRQ with no allowed handler
it disables it to avoid storms.
However with nonstall interrupts, we often disable them from
the drm driver, but still request their emission via the push submission.
Just don't disable nonstall irqs ever in normal operation, the
event handling code will filter them out, and the driver will
just enable/disable them at load time.
This fixes timeouts we've been seeing on/off for a long time,
but they became a lot more noticeable on Blackwell.
This doesn't fix all of them, there is a subsequent fence emission
fix to fix the last few.
Fixes: 3ebd64aa3c ("drm/nouveau/intr: support multiple trees, and explicit interfaces")
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://lore.kernel.org/r/20250829021633.1674524-1-airlied@gmail.com
[ Fix a typo and a minor checkpatch.pl warning; remove "v2" from commit
subject. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
/*
|
|
* Copyright 2021 Red Hat Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#include "priv.h"
|
|
|
|
#include <subdev/gsp.h>
|
|
|
|
#include <nvif/class.h>
|
|
|
|
static const struct nvkm_fifo_func
|
|
ga102_fifo = {
|
|
.runl_ctor = ga100_fifo_runl_ctor,
|
|
.mmu_fault = &tu102_fifo_mmu_fault,
|
|
.nonstall_ctor = ga100_fifo_nonstall_ctor,
|
|
.nonstall_dtor = ga100_fifo_nonstall_dtor,
|
|
.nonstall = &ga100_fifo_nonstall,
|
|
.runl = &ga100_runl,
|
|
.runq = &ga100_runq,
|
|
.engn = &ga100_engn,
|
|
.engn_ce = &ga100_engn_ce,
|
|
.cgrp = {{ 0, 0, KEPLER_CHANNEL_GROUP_A }, &ga100_cgrp, .force = true },
|
|
.chan = {{ 0, 0, AMPERE_CHANNEL_GPFIFO_A }, &ga100_chan },
|
|
};
|
|
|
|
int
|
|
ga102_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
|
|
struct nvkm_fifo **pfifo)
|
|
{
|
|
if (nvkm_gsp_rm(device->gsp))
|
|
return r535_fifo_new(&ga102_fifo, device, type, inst, pfifo);
|
|
|
|
return nvkm_fifo_new_(&ga102_fifo, device, type, inst, pfifo);
|
|
}
|