diff options
| author | Ilia Mirkin <imirkin@alum.mit.edu> | 2015-10-20 01:15:39 -0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2015-10-22 09:09:53 +1000 |
| commit | 6252ca2b03bb316483810582e0baf537fcdc1ecb (patch) | |
| tree | ac4c26ed4a0282688b7bdece5d78e11af6b32bb0 /lib | |
| parent | 5df5f6682686c8b45be56f68ca3bde65560560bf (diff) | |
| download | nouveau-6252ca2b03bb316483810582e0baf537fcdc1ecb.tar.gz | |
gem: return only valid domain when there's only one
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.
Cc: stable@vger.kernel.org
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>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/include/nvif/os.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/include/nvif/os.h b/lib/include/nvif/os.h index d3581ef04..48bcf150b 100644 --- a/lib/include/nvif/os.h +++ b/lib/include/nvif/os.h @@ -134,6 +134,12 @@ typedef dma_addr_t resource_size_t; #define IS_ENABLED(x) IS_ENABLED_##x +static inline bool +is_power_of_2(unsigned long n) +{ + return (n != 0 && ((n & (n - 1)) == 0)); +} + static inline int order_base_2(u64 base) { |