From cc36205085bb6e3a4eed1edbe413fd2235cadb27 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 8 May 2018 20:39:46 +1000 Subject: drm/nouveau/fifo/gk104-: support querying engines available on each runlist Will be used to improve channel runlist selection. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c | 2 ++ drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c | 30 ++++++++++++++++++++++++ drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h | 1 + 3 files changed, 33 insertions(+) (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/fifo') diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c index ed56087b4abe..1642d8ea68f1 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c @@ -284,6 +284,8 @@ nvkm_fifo_info(struct nvkm_engine *engine, u64 mthd, u64 *data) switch (mthd) { case NV_DEVICE_FIFO_CHANNELS: *data = fifo->nr; return 0; default: + if (fifo->func->info) + return fifo->func->info(fifo, mthd, data); break; } return -ENOSYS; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c index b5706b15a64d..b6c23cf43f83 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c @@ -33,6 +33,7 @@ #include #include +#include struct gk104_fifo_engine_status { bool busy; @@ -783,6 +784,34 @@ gk104_fifo_fini(struct nvkm_fifo *base) nvkm_mask(device, 0x002140, 0x10000000, 0x10000000); } +static int +gk104_fifo_info(struct nvkm_fifo *base, u64 mthd, u64 *data) +{ + struct gk104_fifo *fifo = gk104_fifo(base); + switch (mthd) { + case NV_DEVICE_FIFO_RUNLISTS: + *data = (1ULL << fifo->runlist_nr) - 1; + return 0; + case NV_DEVICE_FIFO_RUNLIST_ENGINES(0)... + NV_DEVICE_FIFO_RUNLIST_ENGINES(63): { + int runl = mthd - NV_DEVICE_FIFO_RUNLIST_ENGINES(0), engn; + if (runl < fifo->runlist_nr) { + unsigned long engm = fifo->runlist[runl].engm; + struct nvkm_engine *engine; + *data = 0; + for_each_set_bit(engn, &engm, fifo->engine_nr) { + if ((engine = fifo->engine[engn].engine)) + *data |= BIT_ULL(engine->subdev.index); + } + return 0; + } + } + return -EINVAL; + default: + return -EINVAL; + } +} + static int gk104_fifo_oneinit(struct nvkm_fifo *base) { @@ -912,6 +941,7 @@ static const struct nvkm_fifo_func gk104_fifo_ = { .dtor = gk104_fifo_dtor, .oneinit = gk104_fifo_oneinit, + .info = gk104_fifo_info, .init = gk104_fifo_init, .fini = gk104_fifo_fini, .intr = gk104_fifo_intr, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h index df74b54773b9..f9b4e9d2c08a 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h @@ -18,6 +18,7 @@ struct nvkm_fifo_chan_oclass; struct nvkm_fifo_func { void *(*dtor)(struct nvkm_fifo *); int (*oneinit)(struct nvkm_fifo *); + int (*info)(struct nvkm_fifo *, u64 mthd, u64 *data); void (*init)(struct nvkm_fifo *); void (*fini)(struct nvkm_fifo *); void (*intr)(struct nvkm_fifo *); -- cgit v1.2.3-55-g7522