Merge branch 'llvm-cliptest-viewport'

[mesa.git] / src / gallium / winsys / r600 / drm / r600_drm.c

diff --git a/src/gallium/winsys/r600/drm/r600_drm.c b/src/gallium/winsys/r600/drm/r600_drm.c
index 4916843fd6d31a1a5d7380cfe5956cde56503a58..c9de95ffc027fea1bfb1f945db79f5defa05b7d2 100644 (file)
--- a/src/gallium/winsys/r600/drm/r600_drm.c
+++ b/src/gallium/winsys/r600/drm/r600_drm.c
@@ -37,6 +37,9 @@
 #include "xf86drm.h"
 #include "radeon_drm.h"
 
+#ifndef RADEON_INFO_TILING_CONFIG
+#define RADEON_INFO_TILING_CONFIG 0x6
+#endif
 static int radeon_get_device(struct radeon *radeon)
 {
        struct drm_radeon_info info;
@@ -50,6 +53,61 @@ static int radeon_get_device(struct radeon *radeon)
        return r;
 }
 
+static int radeon_drm_get_tiling(struct radeon *radeon)
+{
+       struct drm_radeon_info info;
+       int r;
+       uint32_t tiling_config;
+
+       info.request = RADEON_INFO_TILING_CONFIG;
+       info.value = (uintptr_t)&tiling_config;
+       r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
+                               sizeof(struct drm_radeon_info));
+
+       if (r)
+               return r;
+
+       switch ((tiling_config & 0xe) >> 1) {
+       case 0:
+               radeon->tiling_info.num_channels = 1;
+               break;
+       case 1:
+               radeon->tiling_info.num_channels = 2;
+               break;
+       case 2:
+               radeon->tiling_info.num_channels = 4;
+               break;
+       case 3:
+               radeon->tiling_info.num_channels = 8;
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       switch ((tiling_config & 0x30) >> 4) {
+       case 0:
+               radeon->tiling_info.num_banks = 4;
+               break;
+       case 1:
+               radeon->tiling_info.num_banks = 8;
+               break;
+       default:
+               return -EINVAL;
+
+       }
+       switch ((tiling_config & 0xc0) >> 6) {
+       case 0:
+               radeon->tiling_info.group_bytes = 256;
+               break;
+       case 1:
+               radeon->tiling_info.group_bytes = 512;
+               break;
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
 struct radeon *radeon_new(int fd, unsigned device)
 {
        struct radeon *radeon;
@@ -157,6 +215,10 @@ struct radeon *radeon_new(int fd, unsigned device)
                break;
        }
 
+       if (radeon->chip_class == R600 || radeon->chip_class == R700) {
+               if (radeon_drm_get_tiling(radeon))
+                       return NULL;
+       }
        radeon->kman = radeon_bo_pbmgr_create(radeon);
        if (!radeon->kman)
                return NULL;