Mesa (master): i965/miptree: Remove the width/height < 32768 restrictions

[Jason Ekstrand]

Module: Mesa
Branch: master
Commit: 44760c100c3793718cc8d6cfb66852c4f72d7057
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=44760c100c3793718cc8d6cfb66852c4f72d7057

Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Mon Oct 24 15:02:41 2016 -0700

i965/miptree: Remove the width/height < 32768 restrictions

These restrictions existed because intel_miptree_blit couldn't handle
surfaces bigger than 32k.  How that we're chopping blits up into chunks, it
can handle any size we throw at it so we can get rid of this restriction.
This improves the terrain tests in synmark by 25-30% on my Sky Lake gt3.

Signed-off-by: Jason Ekstrand <jason at jlekstrand.net>
Reported-by: Ben Widawsky <ben at bwidawsk.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat at gmail.com>

---

 src/mesa/drivers/dri/i965/brw_tex_layout.c    | 3 +--
 src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 6 ------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_tex_layout.c b/src/mesa/drivers/dri/i965/brw_tex_layout.c
index 4618bc0..768f8a8 100644
--- a/src/mesa/drivers/dri/i965/brw_tex_layout.c
+++ b/src/mesa/drivers/dri/i965/brw_tex_layout.c
@@ -610,8 +610,7 @@ brw_miptree_choose_tiling(struct brw_context *brw,
    if (minimum_pitch < 64)
       return I915_TILING_NONE;
 
-   if (ALIGN(minimum_pitch, 512) >= 32768 ||
-       mt->total_width >= 32768 || mt->total_height >= 32768) {
+   if (ALIGN(minimum_pitch, 512) >= 32768) {
       perf_debug("%dx%d miptree too large to blit, falling back to untiled",
                  mt->total_width, mt->total_height);
       return I915_TILING_NONE;
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index da9a38a..94a8086 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -2838,12 +2838,6 @@ static bool
 can_blit_slice(struct intel_mipmap_tree *mt,
                unsigned int level, unsigned int slice)
 {
-   uint32_t image_x;
-   uint32_t image_y;
-   intel_miptree_get_image_offset(mt, level, slice, &image_x, &image_y);
-   if (image_x >= 32768 || image_y >= 32768)
-      return false;
-
    /* See intel_miptree_blit() for details on the 32k pitch limit. */
    if (mt->pitch >= 32768)
       return false;