renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

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author	Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>	2007-10-20 16:49:43 +0200
committer	Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>	2007-10-20 16:49:43 +0200
commit	48b5eaf303b60077faed09db77785d7a544ac335 (patch)
tree	1955b5a01288f33e3e4e0bca8fc2de863c39b126 /linux-core/via_dmablit.h
parent	c0e3537e77f1765001f665f93e5349ccd0f1d092 (diff)

Simple replacement for hardware lock in some cases.

Fix i915 since last commit.

Diffstat (limited to 'linux-core/via_dmablit.h')

0 files changed, 0 insertions, 0 deletions

nd/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /** * Memory manager code. Primarily used by device drivers to manage texture * heaps, etc. */ #ifndef MM_H #define MM_H struct mem_block { struct mem_block *next, *prev; struct mem_block *next_free, *prev_free; struct mem_block *heap; int ofs, size; unsigned int free:1; unsigned int reserved:1; }; /* Rename the variables in the drm copy of this code so that it doesn't * conflict with mesa or whoever else has copied it around. */ #define mmInit drm_mmInit #define mmAllocMem drm_mmAllocMem #define mmFreeMem drm_mmFreeMem #define mmFindBlock drm_mmFindBlock #define mmDestroy drm_mmDestroy #define mmDumpMemInfo drm_mmDumpMemInfo /** * input: total size in bytes * return: a heap pointer if OK, NULL if error */ extern struct mem_block *mmInit(int ofs, int size); /** * Allocate 'size' bytes with 2^align2 bytes alignment, * restrict the search to free memory after 'startSearch' * depth and back buffers should be in different 4mb banks * to get better page hits if possible * input: size = size of block * align2 = 2^align2 bytes alignment * startSearch = linear offset from start of heap to begin search * return: pointer to the allocated block, 0 if error */ extern struct mem_block *mmAllocMem(struct mem_block *heap, int size, int align2, int startSearch); /** * Free block starts at offset * input: pointer to a block * return: 0 if OK, -1 if error */ extern int mmFreeMem(struct mem_block *b); /** * Free block starts at offset * input: pointer to a heap, start offset * return: pointer to a block */ extern struct mem_block *mmFindBlock(struct mem_block *heap, int start); /** * destroy MM */ extern void mmDestroy(struct mem_block *mmInit); /** * For debuging purpose. */ extern void mmDumpMemInfo(const struct mem_block *mmInit); #endif


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