drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk110.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk110.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk110.c
Extension
.c
Size
3733 bytes
Lines
133
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#include "priv.h"
#include "cgrp.h"
#include "chan.h"
#include "chid.h"
#include "runl.h"

#include <core/memory.h>
#include <subdev/timer.h>

#include <nvif/class.h>

void
gk110_chan_preempt(struct nvkm_chan *chan)
{
	struct nvkm_cgrp *cgrp = chan->cgrp;

	if (cgrp->hw) {
		cgrp->func->preempt(cgrp);
		return;
	}

	gf100_chan_preempt(chan);
}

const struct nvkm_chan_func
gk110_chan = {
	.inst = &gf100_chan_inst,
	.userd = &gk104_chan_userd,
	.ramfc = &gk104_chan_ramfc,
	.bind = gk104_chan_bind,
	.unbind = gk104_chan_unbind,
	.start = gk104_chan_start,
	.stop = gk104_chan_stop,
	.preempt = gk110_chan_preempt,
};

static void
gk110_cgrp_preempt(struct nvkm_cgrp *cgrp)
{
	nvkm_wr32(cgrp->runl->fifo->engine.subdev.device, 0x002634, 0x01000000 | cgrp->id);
}

const struct nvkm_cgrp_func
gk110_cgrp = {
	.preempt = gk110_cgrp_preempt,
};

void
gk110_runl_insert_cgrp(struct nvkm_cgrp *cgrp, struct nvkm_memory *memory, u64 offset)
{
	nvkm_wo32(memory, offset + 0, (cgrp->chan_nr << 26) | (128 << 18) |
				      (3 << 14) | 0x00002000 | cgrp->id);
	nvkm_wo32(memory, offset + 4, 0x00000000);
}

const struct nvkm_runl_func
gk110_runl = {
	.size = 8,
	.update = nv50_runl_update,
	.insert_cgrp = gk110_runl_insert_cgrp,
	.insert_chan = gk104_runl_insert_chan,
	.commit = gk104_runl_commit,
	.wait = nv50_runl_wait,
	.pending = gk104_runl_pending,
	.block = gk104_runl_block,
	.allow = gk104_runl_allow,
	.fault_clear = gk104_runl_fault_clear,
	.preempt_pending = gf100_runl_preempt_pending,
};

int
gk110_fifo_chid_ctor(struct nvkm_fifo *fifo, int nr)
{
	int ret;

	ret = nvkm_chid_new(&nvkm_chan_event, &fifo->engine.subdev, nr, 0, nr, &fifo->cgid);
	if (ret)
		return ret;

	return gf100_fifo_chid_ctor(fifo, nr);
}

static const struct nvkm_fifo_func
gk110_fifo = {
	.chid_nr = gk104_fifo_chid_nr,
	.chid_ctor = gk110_fifo_chid_ctor,
	.runq_nr = gf100_fifo_runq_nr,
	.runl_ctor = gk104_fifo_runl_ctor,
	.init = gk104_fifo_init,
	.init_pbdmas = gk104_fifo_init_pbdmas,

Annotation

Implementation Notes