ilo: winsys may limit the batch buffer size

The maximum batch buffer size is determined at the time of
drm_intel_bufmgr_gem_init().  Make sure the pipe driver does not exceed the
limit.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/gallium/drivers/ilo/ilo_context.c b/src/gallium/drivers/ilo/ilo_context.c
index faf29c22778..a01934c9154 100644
--- a/src/gallium/drivers/ilo/ilo_context.c
+++ b/src/gallium/drivers/ilo/ilo_context.c
@@ -120,6 +120,7 @@ ilo_context_create(struct pipe_screen *screen, void *priv)
 {
    struct ilo_screen *is = ilo_screen(screen);
    struct ilo_context *ilo;
+   int cp_size;
 
    ilo = CALLOC_STRUCT(ilo_context);
    if (!ilo)
@@ -135,7 +136,12 @@ ilo_context_create(struct pipe_screen *screen, void *priv)
    util_slab_create(&ilo->transfer_mempool,
          sizeof(struct ilo_transfer), 64, UTIL_SLAB_SINGLETHREADED);
 
-   ilo->cp = ilo_cp_create(ilo->winsys, is->dev.has_llc);
+   /* 8192 DWords */
+   cp_size = 8192;
+   if (cp_size * 4 > is->dev.max_batch_size)
+      cp_size = is->dev.max_batch_size / 4;
+
+   ilo->cp = ilo_cp_create(ilo->winsys, cp_size, is->dev.has_llc);
    ilo->shader_cache = ilo_shader_cache_create();
    if (ilo->cp)
       ilo->hw3d = ilo_3d_create(ilo->cp, ilo->dev);