Files
lkl_linux/drivers/gpu/drm/nouveau/nouveau_chan.h
Karol Herbst 835a65f517 drm/nouveau: bring back blit subchannel for pre nv50 GPUs
1ba6113a90a0 removed a lot of the kernel GPU channel, but method 0x128
was important as otherwise the GPU spams us with `CACHE_ERROR` messages.

We use the blit subchannel inside our vblank handling, so we should keep
at least this part.

v2: Only do it for NV11+ GPUs

Closes: https://gitlab.freedesktop.org/drm/nouveau/-/issues/201
Fixes: 4a16dd9d18 ("drm/nouveau/kms: switch to drm fbdev helpers")
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526091052.2169044-1-kherbst@redhat.com
2023-07-12 22:38:41 +02:00

73 lines
1.4 KiB
C

/* SPDX-License-Identifier: MIT */
#ifndef __NOUVEAU_CHAN_H__
#define __NOUVEAU_CHAN_H__
#include <nvif/object.h>
#include <nvif/event.h>
#include <nvif/push.h>
struct nvif_device;
struct nouveau_channel {
struct {
struct nvif_push _push;
struct nvif_push *push;
} chan;
struct nvif_device *device;
struct nouveau_drm *drm;
struct nouveau_vmm *vmm;
struct nvif_mem mem_userd;
struct nvif_object *userd;
int runlist;
int chid;
u64 inst;
u32 token;
struct nvif_object vram;
struct nvif_object gart;
struct nvif_object nvsw;
struct {
struct nouveau_bo *buffer;
struct nouveau_vma *vma;
struct nvif_object ctxdma;
u64 addr;
} push;
/* TODO: this will be reworked in the near future */
bool accel_done;
void *fence;
struct {
int max;
int free;
int cur;
int put;
int ib_base;
int ib_max;
int ib_free;
int ib_put;
} dma;
u32 user_get_hi;
u32 user_get;
u32 user_put;
struct nvif_object user;
struct nvif_object blit;
struct nvif_event kill;
atomic_t killed;
};
int nouveau_channels_init(struct nouveau_drm *);
void nouveau_channels_fini(struct nouveau_drm *);
int nouveau_channel_new(struct nouveau_drm *, struct nvif_device *, bool priv, u64 runm,
u32 vram, u32 gart, struct nouveau_channel **);
void nouveau_channel_del(struct nouveau_channel **);
int nouveau_channel_idle(struct nouveau_channel *);
extern int nouveau_vram_pushbuf;
#endif