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| author | Ben Skeggs <bskeggs@redhat.com> | 2010-12-20 16:02:42 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-12-21 12:46:51 +1000 |
| commit | bad5242a59aa8e31cf10749e2ac69b3c66ef7da0 (patch) | |
| tree | 5502274e7e12e698436c15254ebd02145900783f | |
| parent | 45cfb9cf089cd56878b1cb5d15391d2470dbeb7c (diff) | |
| download | libdrm-bad5242a59aa8e31cf10749e2ac69b3c66ef7da0.tar.gz libdrm-bad5242a59aa8e31cf10749e2ac69b3c66ef7da0.tar.bz2 libdrm-bad5242a59aa8e31cf10749e2ac69b3c66ef7da0.zip | |
nouveau: fix up reloc_emit() to accept NULL target buffer
The nvc0 gallium drivers passes NULL here to indicate to the memory manager
that a buffer is being used, but without creating an actual reloc.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | nouveau/nouveau_reloc.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/nouveau/nouveau_reloc.c b/nouveau/nouveau_reloc.c index 332dfa01..cd219db4 100644 --- a/nouveau/nouveau_reloc.c +++ b/nouveau/nouveau_reloc.c @@ -79,11 +79,7 @@ nouveau_reloc_emit(struct nouveau_channel *chan, struct nouveau_bo *reloc_bo, if (!(nvbo->flags & (NOUVEAU_BO_GART | NOUVEAU_BO_VRAM))) nvbo->flags |= (flags & (NOUVEAU_BO_GART | NOUVEAU_BO_VRAM)); - rpbbo = nouveau_bo_emit_buffer(chan, reloc_bo); - if (!rpbbo) - return -ENOMEM; - nouveau_bo(reloc_bo)->pending_refcnt++; - + /* add buffer to validation list */ pbbo = nouveau_bo_emit_buffer(chan, bo); if (!pbbo) { fprintf(stderr, "buffer emit fail :(\n"); @@ -91,10 +87,13 @@ nouveau_reloc_emit(struct nouveau_channel *chan, struct nouveau_bo *reloc_bo, } nouveau_bo(bo)->pending_refcnt++; - if (flags & NOUVEAU_BO_VRAM) - domains |= NOUVEAU_GEM_DOMAIN_VRAM; - if (flags & NOUVEAU_BO_GART) - domains |= NOUVEAU_GEM_DOMAIN_GART; + if (flags & (NOUVEAU_BO_VRAM | NOUVEAU_BO_GART)) { + if (flags & NOUVEAU_BO_VRAM) + domains |= NOUVEAU_GEM_DOMAIN_VRAM; + if (flags & NOUVEAU_BO_GART) + domains |= NOUVEAU_GEM_DOMAIN_GART; + } else + domains |= nvbo->domain; if (!(pbbo->valid_domains & domains)) { fprintf(stderr, "no valid domains remain!\n"); @@ -111,6 +110,23 @@ nouveau_reloc_emit(struct nouveau_channel *chan, struct nouveau_bo *reloc_bo, nvbo->write_marker = 1; } + /* nvc0 gallium driver uses reloc_emit() with NULL target buffer + * to inform bufmgr of a buffer's use - however, we need something + * to track, so create a reloc for now, and hope it never triggers + * (it shouldn't, constant virtual address..).. + */ + if (!reloc_bo) { + reloc_bo = nvpb->buffer[nvpb->current]; + reloc_offset = 0; + reloc_ptr = NULL; + } + + /* add reloc target bo to validation list, and create the reloc */ + rpbbo = nouveau_bo_emit_buffer(chan, reloc_bo); + if (!rpbbo) + return -ENOMEM; + nouveau_bo(reloc_bo)->pending_refcnt++; + r = nvpb->relocs + nvpb->nr_relocs++; r->reloc_bo_index = rpbbo - nvpb->buffers; r->reloc_bo_offset = reloc_offset; |