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| author | Peter Maydell <peter.maydell@linaro.org> | 2017-04-24 15:37:30 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2017-04-24 15:37:30 +0100 |
| commit | eab1e53cacfb1d877317d5e7b416ddb43858d92e (patch) | |
| tree | c91eff5084a4c5815e74d2c52444d1c50653ced7 /util | |
| parent | 4c55b1d0bad8a703f0499fe62e3761a0cd288da3 (diff) | |
| parent | 729abb6a920e80c3866f60d1638f08f2eba98a9a (diff) | |
Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20170424-1' into staging
fix display update races, part one.
add xres + yres properties to qxl and virtio.
misc fixes and cleanups.
# gpg: Signature made Mon 24 Apr 2017 13:14:49 BST
# gpg: using RSA key 0x4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/pull-vga-20170424-1:
virtio-gpu: add xres and yres properties
qxl: add xres and yres properties
vmsvga: fix vmsvga_update_display
g364fb: make display updates thread safe
exynos: make display updates thread safe
framebuffer: make display updates thread safe
vga: make display updates thread safe.
vga: add vga_scanline_invalidated helper
memory: add support getting and using a dirty bitmap copy.
bitmap: add bitmap_copy_and_clear_atomic
virtio-gpu: replace PIXMAN_* by PIXMAN_BE_*
console: add same displaychangelistener registration pre-condition
console: add same surface replace pre-condition
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'util')
| -rw-r--r-- | util/bitmap.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/util/bitmap.c b/util/bitmap.c index c1a84ca5e3..efced9a7d8 100644 --- a/util/bitmap.c +++ b/util/bitmap.c @@ -287,6 +287,17 @@ bool bitmap_test_and_clear_atomic(unsigned long *map, long start, long nr) return dirty != 0; } +void bitmap_copy_and_clear_atomic(unsigned long *dst, unsigned long *src, + long nr) +{ + while (nr > 0) { + *dst = atomic_xchg(src, 0); + dst++; + src++; + nr -= BITS_PER_LONG; + } +} + #define ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) /** |