diff options
Diffstat (limited to 'src/gallium/winsys/drm/vmware/core/vmw_screen_pools.c')
| -rw-r--r-- | src/gallium/winsys/drm/vmware/core/vmw_screen_pools.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/gallium/winsys/drm/vmware/core/vmw_screen_pools.c b/src/gallium/winsys/drm/vmware/core/vmw_screen_pools.c index b1c24b0cb6..b9823d7857 100644 --- a/src/gallium/winsys/drm/vmware/core/vmw_screen_pools.c +++ b/src/gallium/winsys/drm/vmware/core/vmw_screen_pools.c @@ -53,14 +53,32 @@ vmw_pools_init(struct vmw_winsys_screen *vws) goto error; vws->pools.gmr_mm = mm_bufmgr_create(vws->pools.gmr, - 16*1024*1024, + VMW_GMR_POOL_SIZE, 12 /* 4096 alignment */); if(!vws->pools.gmr_mm) goto error; + /* + * GMR buffers are typically shortlived, but it's possible that at a given + * instance a buffer is mapped. So to avoid stalling we tell pipebuffer to + * forbid creation of buffers beyond half the GMR pool size, + * + * XXX: It is unclear weather we want to limit the total amount of temporary + * malloc memory used to backup unvalidated GMR buffers. On one hand it is + * preferrable to fail an allocation than exhausting the guest memory with + * temporary data, but on the other hand it is possible that a stupid + * application creates large vertex buffers and does not use them for a long + * time -- since the svga pipe driver only emits the DMA uploads when a + * buffer is used for drawing this would effectively disabling swapping GMR + * buffers to memory. So far, the preemptively flush already seems to keep + * total allocated memory within relatively small numbers, so we don't + * limit. + */ vws->pools.gmr_fenced = fenced_bufmgr_create( vws->pools.gmr_mm, - vmw_fence_ops_create(vws)); + vmw_fence_ops_create(vws), + VMW_GMR_POOL_SIZE/2, + ~0); #ifdef DEBUG vws->pools.gmr_fenced = pb_debug_manager_create(vws->pools.gmr_fenced, |