Merge branch 'mesa_7_7_branch'
Conflicts:
src/gallium/auxiliary/draw/draw_context.c
src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c
src/gallium/auxiliary/pipebuffer/Makefile
src/gallium/auxiliary/pipebuffer/SConscript
src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
src/gallium/auxiliary/tgsi/tgsi_scan.c
src/gallium/drivers/i915/i915_surface.c
src/gallium/drivers/i915/i915_texture.c
src/gallium/drivers/llvmpipe/lp_setup.c
src/gallium/drivers/llvmpipe/lp_tex_sample_c.c
src/gallium/drivers/llvmpipe/lp_texture.c
src/gallium/drivers/softpipe/sp_prim_vbuf.c
src/gallium/state_trackers/xorg/xorg_dri2.c
src/gallium/winsys/drm/intel/gem/intel_drm_api.c
src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.c
src/gallium/winsys/drm/radeon/core/radeon_drm.c
src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c
src/mesa/state_tracker/st_cb_clear.c