| From | Kamal Mostafa <> | Subject | [PATCH 3.13.y-ckt 74/96] drm/nouveau/gem: return only valid domain when there's only one | Date | Fri, 13 Nov 2015 13:49:28 -0800 |
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3.13.11-ckt30 -stable review patch. If anyone has any objections, please let me know.
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From: Ilia Mirkin <imirkin@alum.mit.edu>
commit 2a6c521bb41ce862e43db46f52e7681d33e8d771 upstream.
On nv50+, we restrict the valid domains to just the one where the buffer was originally created. However after the buffer is evicted to system memory, we might move it back to a different domain that was not originally valid. When sharing the buffer and retrieving its GEM_INFO data, we still want the domain that will be valid for this buffer in a pushbuf, not the one where it currently happens to be.
This resolves fdo#92504 and several others. These are due to suspend evicting all buffers, making it more likely that they temporarily end up in the wrong place.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92504 Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/gpu/drm/nouveau/nouveau_gem.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 78a27f8..a99f387 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -196,11 +196,12 @@ nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem, struct nouveau_bo *nvbo = nouveau_gem_object(gem); struct nouveau_vma *vma; - if (nvbo->bo.mem.mem_type == TTM_PL_TT) + if (is_power_of_2(nvbo->valid_domains)) + rep->domain = nvbo->valid_domains; + else if (nvbo->bo.mem.mem_type == TTM_PL_TT) rep->domain = NOUVEAU_GEM_DOMAIN_GART; else rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; - rep->offset = nvbo->bo.offset; if (cli->base.vm) { vma = nouveau_bo_vma_find(nvbo, cli->base.vm); -- 1.9.1
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