The kernel doesn't like command buffers over 64KB, so we don't

allocate buffers bigger than that.

diff --git a/src/mesa/drivers/dri/r300/r300_cmdbuf.c b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
index 73ef69c..a873b02 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_cmdbuf.c
+++ b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
@@ -196,7 +196,7 @@ void r300EmitState(r300ContextPtr r300)
 
        if (r300->cmdbuf.count_used && !r300->hw.is_dirty && !r300->hw.all_dirty)
                return;
-       
+
        /* To avoid going across the entire set of states multiple times, just check
         * for enough space for the case of emitting all state, and inline the
         * r300AllocCmdBuf code here without all the checks.
@@ -543,9 +543,11 @@ void r300InitCmdBuf(r300ContextPtr r300)
 
        /* Initialize command buffer */
        size = 256 * driQueryOptioni(&r300->radeon.optionCache, "command_buffer_size");
-       if (size < 2*r300->hw.max_state_size){
+       if (size < 2*r300->hw.max_state_size) {
                size = 2*r300->hw.max_state_size+65535;
-               }
+       }
+       if (size > 64*256)
+               size = 64*256;
 
        if (RADEON_DEBUG & (DEBUG_IOCTL|DEBUG_DMA)) {
                fprintf(stderr, "sizeof(drm_r300_cmd_header_t)=%d\n",