From 1432a182414352e853bfdad997591598e621fd73 Mon Sep 17 00:00:00 2001
From: Rob Clark <robclark@freedesktop.org>
Date: Wed, 2 Sep 2015 23:13:33 -0700
Subject: [PATCH] xa: add xa_surface_from_handle2 v2

Like xa_surface_from_handle(), but takes a handle type, rather than
hard-coding 'shared' handle.  This is needed to fix bugs seen with
xf86-video-freedreno with xrandr rotation, for example.  The root issue
is that doing a GEM_OPEN ioctl on a bo that already has a GEM handle
associated with the drm_file will result in two unique handles for the
same bo.  Which causes all sorts of follow-on fail.

v2:
- Add support for for fd handles.
- Avoid duplicating code.
- Bump xa version minor.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
---
 src/gallium/state_trackers/xa/xa_tracker.c | 41 ++++++++++++++++++++++--------
 src/gallium/state_trackers/xa/xa_tracker.h | 14 +++++++++-
 src/gallium/targets/xa/xa.sym              |  1 +
 3 files changed, 45 insertions(+), 11 deletions(-)

diff --git a/src/gallium/state_trackers/xa/xa_tracker.c b/src/gallium/state_trackers/xa/xa_tracker.c
index 21ca57c..2944b16 100644
--- a/src/gallium/state_trackers/xa/xa_tracker.c
+++ b/src/gallium/state_trackers/xa/xa_tracker.c
@@ -298,6 +298,20 @@ xa_format_check_supported(struct xa_tracker *xa,
     return XA_ERR_NONE;
 }
 
+static unsigned
+handle_type(enum xa_handle_type type)
+{
+    switch (type) {
+    case xa_handle_type_kms:
+	return DRM_API_HANDLE_TYPE_KMS;
+    case xa_handle_type_fd:
+        return DRM_API_HANDLE_TYPE_FD;
+    case xa_handle_type_shared:
+    default:
+	return DRM_API_HANDLE_TYPE_SHARED;
+    }
+}
+
 static struct xa_surface *
 surface_create(struct xa_tracker *xa,
 		  int width,
@@ -380,9 +394,24 @@ xa_surface_from_handle(struct xa_tracker *xa,
 		  enum xa_formats xa_format, unsigned int flags,
 		  uint32_t handle, uint32_t stride)
 {
+    return xa_surface_from_handle2(xa, width, height, depth, stype, xa_format,
+                                   DRM_API_HANDLE_TYPE_SHARED, flags, handle,
+                                   stride);
+}
+
+XA_EXPORT struct xa_surface *
+xa_surface_from_handle2(struct xa_tracker *xa,
+                        int width,
+                        int height,
+                        int depth,
+                        enum xa_surface_type stype,
+                        enum xa_formats xa_format, unsigned int flags,
+                        enum xa_handle_type type,
+                        uint32_t handle, uint32_t stride)
+{
     struct winsys_handle whandle;
     memset(&whandle, 0, sizeof(whandle));
-    whandle.type = DRM_API_HANDLE_TYPE_SHARED;
+    whandle.type = handle_type(type);
     whandle.handle = handle;
     whandle.stride = stride;
     return surface_create(xa, width, height, depth, stype, xa_format, flags, &whandle);
@@ -511,15 +540,7 @@ xa_surface_handle(struct xa_surface *srf,
     boolean res;
 
     memset(&whandle, 0, sizeof(whandle));
-    switch (type) {
-    case xa_handle_type_kms:
-	whandle.type = DRM_API_HANDLE_TYPE_KMS;
-	break;
-    case xa_handle_type_shared:
-    default:
-	whandle.type = DRM_API_HANDLE_TYPE_SHARED;
-	break;
-    }
+    whandle.type = handle_type(type);
     res = screen->resource_get_handle(screen, srf->tex, &whandle);
     if (!res)
 	return -XA_ERR_INVAL;
diff --git a/src/gallium/state_trackers/xa/xa_tracker.h b/src/gallium/state_trackers/xa/xa_tracker.h
index 5c6435e..44b3eb5 100644
--- a/src/gallium/state_trackers/xa/xa_tracker.h
+++ b/src/gallium/state_trackers/xa/xa_tracker.h
@@ -37,7 +37,7 @@
 #include <stdint.h>
 
 #define XA_TRACKER_VERSION_MAJOR 2
-#define XA_TRACKER_VERSION_MINOR 2
+#define XA_TRACKER_VERSION_MINOR 3
 #define XA_TRACKER_VERSION_PATCH 0
 
 #define XA_FLAG_SHARED         (1 << 0)
@@ -149,6 +149,7 @@ struct xa_box {
 enum xa_handle_type {
     xa_handle_type_shared,
     xa_handle_type_kms,
+    xa_handle_type_fd,
 };
 
 extern void xa_tracker_version(int *major, int *minor, int *patch);
@@ -177,6 +178,17 @@ extern struct xa_surface * xa_surface_from_handle(struct xa_tracker *xa,
 					    enum xa_formats pform,
 					    unsigned int flags,
 					    uint32_t handle, uint32_t stride);
+extern struct xa_surface *
+xa_surface_from_handle2(struct xa_tracker *xa,
+                        int width,
+                        int height,
+                        int depth,
+                        enum xa_surface_type stype,
+                        enum xa_formats xa_format,
+                        unsigned int flags,
+                        enum xa_handle_type type,
+                        uint32_t handle,
+                        uint32_t stride);
 
 enum xa_formats xa_surface_format(const struct xa_surface *srf);
 
diff --git a/src/gallium/targets/xa/xa.sym b/src/gallium/targets/xa/xa.sym
index 9c7f422..50ccc99 100644
--- a/src/gallium/targets/xa/xa.sym
+++ b/src/gallium/targets/xa/xa.sym
@@ -23,6 +23,7 @@
 		xa_surface_dma;
 		xa_surface_format;
 		xa_surface_from_handle;
+		xa_surface_from_handle2;
 		xa_surface_handle;
 		xa_surface_map;
 		xa_surface_redefine;
-- 
2.7.4