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Commit 19ca10d8 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/gem: lookup VMAs for buffers referenced by pushbuf ioctl 



We previously only did this for push buffers, but an upcoming patch will
need to attach fences to all VMAs to resolve another issue.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 4b2c71ed

drivers/gpu/drm/nouveau/nouveau_dma.c

+1 −9
Original line number Diff line number Diff line
@@ -80,18 +80,10 @@ READ_GET(struct nouveau_channel *chan, uint64_t *prev_get, int *timeout) 
}



void

nv50_dma_push(struct nouveau_channel *chan, struct nouveau_bo *bo,

	      int delta, int length)

nv50_dma_push(struct nouveau_channel *chan, u64 offset, int length)

{

	struct nouveau_cli *cli = (void *)chan->user.client;

	struct nouveau_bo *pb = chan->push.buffer;

	struct nouveau_vma *vma;

	int ip = (chan->dma.ib_put * 2) + chan->dma.ib_base;

	u64 offset;



	vma = nouveau_vma_find(bo, &cli->vmm);

	BUG_ON(!vma);

	offset = vma->addr + delta;



	BUG_ON(chan->dma.ib_free < 1);

drivers/gpu/drm/nouveau/nouveau_dma.h

+2 −3
Original line number Diff line number Diff line
@@ -31,8 +31,7 @@ 
#include "nouveau_chan.h"



int nouveau_dma_wait(struct nouveau_channel *, int slots, int size);

void nv50_dma_push(struct nouveau_channel *, struct nouveau_bo *,

		   int delta, int length);

void nv50_dma_push(struct nouveau_channel *, u64 addr, int length);



/*

 * There's a hw race condition where you can't jump to your PUT offset,
@@ -151,7 +150,7 @@ FIRE_RING(struct nouveau_channel *chan) 
	chan->accel_done = true;



	if (chan->dma.ib_max) {

		nv50_dma_push(chan, chan->push.buffer, chan->dma.put << 2,

		nv50_dma_push(chan, chan->push.addr + (chan->dma.put << 2),

			      (chan->dma.cur - chan->dma.put) << 2);

	} else {

		WRITE_PUT(chan->dma.cur);

drivers/gpu/drm/nouveau/nouveau_gem.c

+16 −3
Original line number Diff line number Diff line
@@ -432,7 +432,20 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, 
			}

		}



		if (cli->vmm.vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {

			struct nouveau_vmm *vmm = &cli->vmm;

			struct nouveau_vma *vma = nouveau_vma_find(nvbo, vmm);

			if (!vma) {

				NV_PRINTK(err, cli, "vma not found!\n");

				ret = -EINVAL;

				break;

			}



			b->user_priv = (uint64_t)(unsigned long)vma;

		} else {

			b->user_priv = (uint64_t)(unsigned long)nvbo;

		}



		nvbo->reserved_by = file_priv;

		nvbo->pbbo_index = i;

		if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
@@ -763,10 +776,10 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, 
		}



		for (i = 0; i < req->nr_push; i++) {

			struct nouveau_bo *nvbo = (void *)(unsigned long)

			struct nouveau_vma *vma = (void *)(unsigned long)

				bo[push[i].bo_index].user_priv;



			nv50_dma_push(chan, nvbo, push[i].offset,

			nv50_dma_push(chan, vma->addr + push[i].offset,

				      push[i].length);

		}

	} else