4 files changed, 57 insertions, 7 deletions

diff --git a/src/gallium/winsys/radeon/drm/radeon_drm.c b/src/gallium/winsys/radeon/drm/radeon_drm.c
index e9a276362f..86d4f94969 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm.c
@@ -39,7 +39,6 @@
 #include "util/u_memory.h"
 
 #include "xf86drm.h"
-#include <sys/ioctl.h>
 
 static struct radeon_libdrm_winsys *
 radeon_winsys_create(int fd)
@@ -55,6 +54,31 @@ radeon_winsys_create(int fd)
     return rws;
 }
 
+/* Enable/disable Hyper-Z access. Return TRUE on success. */
+static boolean radeon_set_hyperz_access(int fd, boolean enable)
+{
+#ifndef RADEON_INFO_WANT_HYPERZ
+#define RADEON_INFO_WANT_HYPERZ 7
+#endif
+
+    struct drm_radeon_info info = {0};
+    unsigned value = enable ? 1 : 0;
+
+    if (!debug_get_bool_option("RADEON_HYPERZ", FALSE))
+        return FALSE;
+
+    info.value = (unsigned long)&value;
+    info.request = RADEON_INFO_WANT_HYPERZ;
+
+    if (drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info)) != 0)
+        return FALSE;
+
+    if (enable && !value)
+        return FALSE;
+
+    return TRUE;
+}
+
 /* Helper function to do the ioctls needed for setup and init. */
 static void do_ioctls(int fd, struct radeon_libdrm_winsys* winsys)
 {
@@ -103,6 +127,10 @@ static void do_ioctls(int fd, struct radeon_libdrm_winsys* winsys)
     winsys->drm_2_3_0 = version->version_major > 2 ||
                         version->version_minor >= 3;
 
+    winsys->drm_2_6_0 = version->version_major > 2 ||
+                        (version->version_major == 2 &&
+                         version->version_minor >= 6);
+
     info.request = RADEON_INFO_DEVICE_ID;
     retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
     if (retval) {
@@ -130,6 +158,8 @@ static void do_ioctls(int fd, struct radeon_libdrm_winsys* winsys)
     }
     winsys->z_pipes = target;
 
+    winsys->hyperz = radeon_set_hyperz_access(fd, TRUE);
+
     retval = drmCommandWriteRead(fd, DRM_RADEON_GEM_INFO,
             &gem_info, sizeof(gem_info));
     if (retval) {
@@ -142,12 +172,14 @@ static void do_ioctls(int fd, struct radeon_libdrm_winsys* winsys)
 
     debug_printf("radeon: Successfully grabbed chipset info from kernel!\n"
                  "radeon: DRM version: %d.%d.%d ID: 0x%04x GB: %d Z: %d\n"
-                 "radeon: GART size: %d MB VRAM size: %d MB\n",
+                 "radeon: GART size: %d MB VRAM size: %d MB\n"
+                 "radeon: HyperZ: %s\n",
                  version->version_major, version->version_minor,
                  version->version_patchlevel, winsys->pci_id,
                  winsys->gb_pipes, winsys->z_pipes,
                  winsys->gart_size / 1024 / 1024,
-                 winsys->vram_size / 1024 / 1024);
+                 winsys->vram_size / 1024 / 1024,
+                 winsys->hyperz ? "YES" : "NO");
 
     drmFreeVersion(version);
 }
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_buffer.c b/src/gallium/winsys/radeon/drm/radeon_drm_buffer.c
index 5ea5912089..017eac8464 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_buffer.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_buffer.c
@@ -189,7 +189,7 @@ struct pb_buffer *radeon_drm_bufmgr_create_buffer_from_handle(struct pb_manager
     pipe_reference_init(&buf->base.base.reference, 1);
     buf->base.base.alignment = 0;
     buf->base.base.usage = PB_USAGE_GPU_WRITE | PB_USAGE_GPU_READ;
-    buf->base.base.size = 0;
+    buf->base.base.size = bo->size;
     buf->base.vtbl = &radeon_drm_buffer_vtbl;
     buf->mgr = mgr;
 
diff --git a/src/gallium/winsys/radeon/drm/radeon_r300.c b/src/gallium/winsys/radeon/drm/radeon_r300.c
index effa27f5c7..5840098642 100644
--- a/src/gallium/winsys/radeon/drm/radeon_r300.c
+++ b/src/gallium/winsys/radeon/drm/radeon_r300.c
@@ -109,14 +109,19 @@ static void radeon_r300_winsys_buffer_reference(struct r300_winsys_screen *rws,
 
 static struct r300_winsys_buffer *radeon_r300_winsys_buffer_from_handle(struct r300_winsys_screen *rws,
                                                                         struct winsys_handle *whandle,
-                                                                        unsigned *stride)
+                                                                        unsigned *stride,
+                                                                        unsigned *size)
 {
     struct radeon_libdrm_winsys *ws = radeon_libdrm_winsys(rws);
     struct pb_buffer *_buf;
 
-    *stride = whandle->stride;
-
     _buf = radeon_drm_bufmgr_create_buffer_from_handle(ws->kman, whandle->handle);
+
+    if (stride)
+        *stride = whandle->stride;
+    if (size)
+        *size = _buf->base.size;
+
     return radeon_libdrm_winsys_buffer(_buf);
 }
 
@@ -206,6 +211,10 @@ static uint32_t radeon_get_value(struct r300_winsys_screen *rws,
         return ws->squaretiling;
     case R300_VID_DRM_2_3_0:
         return ws->drm_2_3_0;
+    case R300_VID_DRM_2_6_0:
+        return ws->drm_2_6_0;
+    case R300_CAN_HYPERZ:
+        return ws->hyperz;
     }
     return 0;
 }
diff --git a/src/gallium/winsys/radeon/drm/radeon_winsys.h b/src/gallium/winsys/radeon/drm/radeon_winsys.h
index 533b7b2e2d..6f4aa4bce3 100644
--- a/src/gallium/winsys/radeon/drm/radeon_winsys.h
+++ b/src/gallium/winsys/radeon/drm/radeon_winsys.h
@@ -65,6 +65,15 @@ struct radeon_libdrm_winsys {
      */
     boolean drm_2_3_0;
 
+    /* DRM 2.6.0
+     *   - Hyper-Z
+     *   - GB_Z_PEQ_CONFIG allowed on rv350->r4xx, we should initialize it
+     */
+    boolean drm_2_6_0;
+
+    /* hyperz user */
+    boolean hyperz;
+
     /* DRM FD */
     int fd;