Fixing kernel memory allocation bugs in radeon command stream parser requires splitting the buffer to multiple independ pages.
To make splitting one large array to multiple pages first patch adds drm_buffer structure and functions to reference data in the buffer. Second patch converts existing parsing code to use drm_buffer to hold the command stream. There is 2 beta tester reporting that patch works with their r300 based systems. I have tested the patch with r200 card. After posting patch to the bug report I have cleaned the code from errors that checkpatch.pl reported. drivers/gpu/drm/Makefile | 2 +- drivers/gpu/drm/drm_buffer.c | 184 +++++++++++++++++++++ drivers/gpu/drm/radeon/r300_cmdbuf.c | 280 +++++++++++++++------------------ drivers/gpu/drm/radeon/radeon_drv.h | 32 ++++- drivers/gpu/drm/radeon/radeon_state.c | 197 ++++++++++++----------- include/drm/drm_buffer.h | 148 +++++++++++++++++ 6 files changed, 595 insertions(+), 248 deletions(-) ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
