[PATCH xf86-video-ati 10/10] glamor: Use GBM for BO allocation when possible

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From: Michel Dänzer <michel.daenzer@xxxxxxx>

Inspired by amdgpu. This avoids various issues due to a GEM handle
lifetime conflict between us and Mesa with current glamor.

Bugzilla: https://bugs.freedesktop.org/105381
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 configure.ac           |  10 ++++
 src/Makefile.am        |   4 +-
 src/drmmode_display.c  |  39 ++++++++------
 src/radeon.h           |   7 ++-
 src/radeon_bo_helper.c | 118 ++++++++++++++++++++++++++++++++++++++++-
 src/radeon_bo_helper.h |  20 ++++++-
 src/radeon_dri2.c      |   7 +--
 src/radeon_dri3.c      |  13 +++--
 src/radeon_glamor.c    |  47 ++++++++++------
 src/radeon_glamor.h    |  28 +++++++++-
 src/radeon_kms.c       |  40 +++++++++-----
 11 files changed, 266 insertions(+), 67 deletions(-)

diff --git a/configure.ac b/configure.ac
index 11efdf0ae..f5614749f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -138,12 +138,22 @@ if test "x$GLAMOR" != "xno"; then
 					 [Have glamor_egl_destroy_textured_pixmap API])], [],
 			      [#include "xorg-server.h"
 			       #include "glamor.h"])
+
+		AC_CHECK_DECL(glamor_finish,
+			      [AC_DEFINE(HAVE_GLAMOR_FINISH, 1,
+					 [Have glamor_finish API])],
+					 [PKG_CHECK_MODULES(LIBGL, [gl])],
+			      [#include "xorg-server.h"
+			       #include "glamor.h"])
 	fi
 
 	if test "x$GLAMOR_XSERVER" != xyes; then
 		PKG_CHECK_MODULES(LIBGLAMOR, [glamor >= 0.6.0])
 		PKG_CHECK_MODULES(LIBGLAMOR_EGL, [glamor-egl])
 	fi
+
+	PKG_CHECK_MODULES(GBM, [gbm >= 10.6])
+
 	AC_DEFINE(USE_GLAMOR, 1, [Enable glamor acceleration])
 else
 	AC_MSG_RESULT([$GLAMOR])
diff --git a/src/Makefile.am b/src/Makefile.am
index ed1bfa9e6..df4a95e4f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -62,8 +62,8 @@ radeon_drv_la_SOURCES = \
 	$(RADEON_KMS_SRCS)
 
 if GLAMOR
-AM_CFLAGS += @LIBGLAMOR_CFLAGS@
-radeon_drv_la_LIBADD += @LIBGLAMOR_LIBS@
+AM_CFLAGS += @LIBGLAMOR_CFLAGS@ @GBM_CFLAGS@
+radeon_drv_la_LIBADD += @LIBGLAMOR_LIBS@ @GBM_LIBS@
 radeon_drv_la_SOURCES += \
 	 radeon_glamor_wrappers.c \
 	 radeon_glamor.c
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index c91f5bb20..2773ce672 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -142,8 +142,7 @@ static PixmapPtr drmmode_create_bo_pixmap(ScrnInfoPtr pScrn,
 	}
 
 	if (!info->use_glamor ||
-	    radeon_glamor_create_textured_pixmap(pixmap,
-						 radeon_get_pixmap_private(pixmap)))
+	    radeon_glamor_create_textured_pixmap(pixmap, bo))
 		return pixmap;
 
 fail:
@@ -435,8 +434,14 @@ destroy_pixmap_for_fbcon(ScrnInfoPtr pScrn)
 	/* XXX: The current GPUVM support in the kernel doesn't allow removing
 	 * the virtual address range for this BO, so we need to keep around
 	 * the pixmap to avoid breaking glamor with GPUVM
+	 *
+	 * Similarly, need to keep around the pixmap with current glamor, to
+	 * avoid issues due to a GEM handle lifetime conflict between us and
+	 * Mesa
 	 */
-	if (info->use_glamor && info->ChipFamily >= CHIP_FAMILY_CAYMAN)
+	if (info->use_glamor &&
+	    (info->ChipFamily >= CHIP_FAMILY_CAYMAN ||
+	     xorgGetVersion() >= XORG_VERSION_NUMERIC(1,19,99,1,0)))
 		return;
 
 	if (info->fbcon_pixmap)
@@ -2277,21 +2282,23 @@ drmmode_xf86crtc_resize (ScrnInfoPtr scrn, int width, int height)
 
 	scrn->displayWidth = pitch / cpp;
 
+	if (!info->use_glamor) {
 #if X_BYTE_ORDER == X_BIG_ENDIAN
-	switch (cpp) {
-	case 4:
-	    tiling_flags |= RADEON_TILING_SWAP_32BIT;
-	    break;
-	case 2:
-	    tiling_flags |= RADEON_TILING_SWAP_16BIT;
-	    break;
-	}
-	if (info->ChipFamily < CHIP_FAMILY_R600 &&
-	    info->r600_shadow_fb && tiling_flags)
-	    tiling_flags |= RADEON_TILING_SURFACE;
+		switch (cpp) {
+		case 4:
+			tiling_flags |= RADEON_TILING_SWAP_32BIT;
+			break;
+		case 2:
+			tiling_flags |= RADEON_TILING_SWAP_16BIT;
+			break;
+		}
+		if (info->ChipFamily < CHIP_FAMILY_R600 &&
+		    info->r600_shadow_fb && tiling_flags)
+			tiling_flags |= RADEON_TILING_SURFACE;
 #endif
-	if (tiling_flags)
-	    radeon_bo_set_tiling(info->front_buffer->bo.radeon, tiling_flags, pitch);
+		if (tiling_flags)
+			radeon_bo_set_tiling(info->front_buffer->bo.radeon, tiling_flags, pitch);
+	}
 
 	if (!info->r600_shadow_fb) {
 		if (info->surf_man && !info->use_glamor)
diff --git a/src/radeon.h b/src/radeon.h
index 648fd98a5..2bcfa41b1 100644
--- a/src/radeon.h
+++ b/src/radeon.h
@@ -606,6 +606,8 @@ typedef struct {
     unsigned hwcursor_disabled;
 
 #ifdef USE_GLAMOR
+    struct gbm_device *gbm;
+
     struct {
 	CreateGCProcPtr SavedCreateGC;
 	RegionPtr (*SavedCopyArea)(DrawablePtr, DrawablePtr, GCPtr, int, int,
@@ -744,8 +746,6 @@ static inline Bool radeon_set_pixmap_bo(PixmapPtr pPix, struct radeon_buffer *bo
 	}
 
 	if (bo) {
-	    uint32_t pitch;
-
 	    if (!priv) {
 		priv = calloc(1, sizeof (struct radeon_pixmap));
 		if (!priv)
@@ -754,11 +754,10 @@ static inline Bool radeon_set_pixmap_bo(PixmapPtr pPix, struct radeon_buffer *bo
 
 	    radeon_buffer_ref(bo);
 	    priv->bo = bo;
-
-	    radeon_bo_get_tiling(bo->bo.radeon, &priv->tiling_flags, &pitch);
 	}
 
 	radeon_set_pixmap_private(pPix, priv);
+	radeon_get_pixmap_tiling_flags(pPix);
 	return TRUE;
     } else
 #endif /* USE_GLAMOR */
diff --git a/src/radeon_bo_helper.c b/src/radeon_bo_helper.c
index 2b836bbf6..79e8ff1bd 100644
--- a/src/radeon_bo_helper.c
+++ b/src/radeon_bo_helper.c
@@ -28,6 +28,37 @@
 #include "radeon_glamor.h"
 #include "radeon_bo_gem.h"
 
+
+#ifdef USE_GLAMOR
+
+static uint32_t
+radeon_get_gbm_format(int depth, int bitsPerPixel)
+{
+    switch (depth) {
+#ifdef GBM_FORMAT_R8
+    case 8:
+	return GBM_FORMAT_R8;
+#endif
+    case 16:
+	return GBM_FORMAT_RGB565;
+    case 32:
+	return GBM_FORMAT_ARGB8888;
+    case 30:
+	return GBM_FORMAT_XRGB2101010;
+    case 24:
+	if (bitsPerPixel == 32)
+	    return GBM_FORMAT_XRGB8888;
+	/* fall through */
+    default:
+	ErrorF("%s: Unsupported depth/bpp %d/%d\n", __func__, depth,
+	       bitsPerPixel);
+	return ~0U;
+    }
+}
+
+#endif /* USE_GLAMOR */
+
+
 static const unsigned MicroBlockTable[5][3][2] = {
     /*linear  tiled   square-tiled */
     {{32, 1}, {8, 4}, {0, 0}}, /*   8 bits per pixel */
@@ -158,6 +189,46 @@ radeon_alloc_pixmap_bo(ScrnInfoPtr pScrn, int width, int height, int depth,
     struct radeon_surface surface;
     struct radeon_buffer *bo;
     int domain = RADEON_GEM_DOMAIN_VRAM;
+
+#ifdef USE_GLAMOR
+    if (info->use_glamor &&
+	!(usage_hint == CREATE_PIXMAP_USAGE_BACKING_PIXMAP &&
+	  info->shadow_primary)) {
+	uint32_t bo_use = GBM_BO_USE_RENDERING;
+	uint32_t gbm_format = radeon_get_gbm_format(depth, bitsPerPixel);
+
+	if (gbm_format == ~0U)
+	    return NULL;
+
+	bo = calloc(1, sizeof(struct radeon_buffer));
+	if (!bo)
+	    return NULL;
+
+	bo->ref_count = 1;
+
+	if (bitsPerPixel == pScrn->bitsPerPixel)
+	    bo_use |= GBM_BO_USE_SCANOUT;
+
+	if ((usage_hint == CREATE_PIXMAP_USAGE_BACKING_PIXMAP &&
+	     info->shadow_primary) ||
+	    (usage_hint & 0xffff) == CREATE_PIXMAP_USAGE_SHARED)
+	    bo_use |= GBM_BO_USE_LINEAR;
+
+	bo->bo.gbm = gbm_bo_create(info->gbm, width, height, gbm_format, bo_use);
+	if (!bo->bo.gbm) {
+	    free(bo);
+	    return NULL;
+	}
+
+	bo->flags |= RADEON_BO_FLAGS_GBM;
+
+	if (new_pitch)
+	    *new_pitch = gbm_bo_get_stride(bo->bo.gbm);
+
+	return bo;
+    }
+#endif
+
     if (usage_hint) {
 	if (info->allowColorTiling) {
 	    if (usage_hint & RADEON_CREATE_PIXMAP_TILING_MACRO)
@@ -245,6 +316,13 @@ radeon_alloc_pixmap_bo(ScrnInfoPtr pScrn, int width, int height, int depth,
 void
 radeon_finish(ScrnInfoPtr scrn, struct radeon_buffer *bo)
 {
+    RADEONInfoPtr info = RADEONPTR(scrn);
+
+    if (info->use_glamor) {
+	radeon_glamor_finish(scrn);
+	return;
+    }
+
     radeon_cs_flush_indirect(scrn);
     radeon_bo_wait(bo->bo.radeon);
 }
@@ -282,7 +360,7 @@ Bool radeon_get_pixmap_handle(PixmapPtr pixmap, uint32_t *handle)
     RADEONInfoPtr info = RADEONPTR(scrn);
 #endif
 
-    if (bo) {
+    if (bo && !(bo->flags & RADEON_BO_FLAGS_GBM)) {
 	*handle = bo->bo.radeon->handle;
 	return TRUE;
     }
@@ -380,6 +458,44 @@ Bool radeon_set_shared_pixmap_backing(PixmapPtr ppix, void *fd_handle,
     if (!bo)
 	goto error;
 
+#ifdef USE_GLAMOR
+    if (info->use_glamor) {
+	struct gbm_import_fd_data data;
+	uint32_t bo_use = GBM_BO_USE_RENDERING;
+
+	data.format = radeon_get_gbm_format(ppix->drawable.depth,
+					    ppix->drawable.bitsPerPixel);
+	if (data.format == ~0U)
+	    goto error;
+
+	bo->ref_count = 1;
+
+	data.fd = ihandle;
+	data.width = ppix->drawable.width;
+	data.height = ppix->drawable.height;
+	data.stride = ppix->devKind;
+
+	if (ppix->drawable.bitsPerPixel == pScrn->bitsPerPixel)
+	    bo_use |= GBM_BO_USE_SCANOUT;
+
+	bo->bo.gbm = gbm_bo_import(info->gbm, GBM_BO_IMPORT_FD, &data, bo_use);
+	if (!bo->bo.gbm)
+	    goto error;
+
+	bo->flags |= RADEON_BO_FLAGS_GBM;
+
+	if (!radeon_glamor_create_textured_pixmap(ppix, bo)) {
+	    radeon_buffer_unref(&bo);
+	    return FALSE;
+	}
+
+	ret = radeon_set_pixmap_bo(ppix, bo);
+	/* radeon_set_pixmap_bo increments ref_count if it succeeds */
+	radeon_buffer_unref(&bo);
+	return ret;
+    }
+#endif
+
     bo->bo.radeon = radeon_gem_bo_open_prime(info->bufmgr, ihandle, size);
     if (!bo)
         goto error;
diff --git a/src/radeon_bo_helper.h b/src/radeon_bo_helper.h
index 53af87c37..cc3d1d3bd 100644
--- a/src/radeon_bo_helper.h
+++ b/src/radeon_bo_helper.h
@@ -23,13 +23,21 @@
 #ifndef RADEON_BO_HELPER_H
 #define RADEON_BO_HELPER_H 1
 
+#ifdef USE_GLAMOR
+#include <gbm.h>
+#endif
+
 #define RADEON_BO_FLAGS_GBM	0x1
 
 struct radeon_buffer {
 	union {
+#ifdef USE_GLAMOR
+		struct gbm_bo *gbm;
+#endif
 		struct radeon_bo *radeon;
 	} bo;
 	uint32_t ref_count;
+    uint32_t flags;
 };
 
 extern struct radeon_buffer *
@@ -88,8 +96,16 @@ radeon_buffer_unref(struct radeon_buffer **buffer)
 	return;
     }
 
-    radeon_bo_unmap(buf->bo.radeon);
-    radeon_bo_unref(buf->bo.radeon);
+#ifdef USE_GLAMOR
+    if (buf->flags & RADEON_BO_FLAGS_GBM) {
+	gbm_bo_destroy(buf->bo.gbm);
+    } else
+#endif
+    {
+	radeon_bo_unmap(buf->bo.radeon);
+	radeon_bo_unref(buf->bo.radeon);
+    }
+
     free(buf);
     *buffer = NULL;
 }
diff --git a/src/radeon_dri2.c b/src/radeon_dri2.c
index 584a1d9d1..ab3db6c5e 100644
--- a/src/radeon_dri2.c
+++ b/src/radeon_dri2.c
@@ -79,11 +79,12 @@ static DevPrivateKeyRec dri2_window_private_key_rec;
 static Bool
 radeon_get_flink_name(RADEONEntPtr pRADEONEnt, PixmapPtr pixmap, uint32_t *name)
 {
-    struct radeon_bo *bo = radeon_get_pixmap_bo(pixmap)->bo.radeon;
+    struct radeon_buffer *bo = radeon_get_pixmap_bo(pixmap);
     struct drm_gem_flink flink;
 
-    if (bo)
-	return radeon_gem_get_kernel_name(bo, name) == 0;
+    if (bo && !(bo->flags & RADEON_BO_FLAGS_GBM) &&
+	radeon_gem_get_kernel_name(bo->bo.radeon, name) == 0)
+	return TRUE;
 
     if (radeon_get_pixmap_handle(pixmap, &flink.handle)) {
 	if (drmIoctl(pRADEONEnt->fd, DRM_IOCTL_GEM_FLINK, &flink) != 0)
diff --git a/src/radeon_dri3.c b/src/radeon_dri3.c
index b199c7937..688e594e1 100644
--- a/src/radeon_dri3.c
+++ b/src/radeon_dri3.c
@@ -213,17 +213,16 @@ static int radeon_dri3_fd_from_pixmap(ScreenPtr screen,
 {
 	struct radeon_bo *bo;
 	int fd;
-
-	bo = radeon_get_pixmap_bo(pixmap)->bo.radeon;
-	if (!bo) {
 #ifdef USE_GLAMOR
-		ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
-		RADEONInfoPtr info = RADEONPTR(scrn);
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	RADEONInfoPtr info = RADEONPTR(scrn);
 
-		if (info->use_glamor)
-			return glamor_fd_from_pixmap(screen, pixmap, stride, size);
+	if (info->use_glamor)
+		return glamor_fd_from_pixmap(screen, pixmap, stride, size);
 #endif
 
+	bo = radeon_get_pixmap_bo(pixmap)->bo.radeon;
+	if (!bo) {
 		exaMoveInPixmap(pixmap);
 		bo = radeon_get_pixmap_bo(pixmap)->bo.radeon;
 		if (!bo)
diff --git a/src/radeon_glamor.c b/src/radeon_glamor.c
index c1d961604..fa6349472 100644
--- a/src/radeon_glamor.c
+++ b/src/radeon_glamor.c
@@ -52,6 +52,7 @@ radeon_glamor_create_screen_resources(ScreenPtr screen)
 {
 	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
 	RADEONInfoPtr info = RADEONPTR(scrn);
+	uint32_t handle;
 
 	if (!info->use_glamor)
 		return TRUE;
@@ -61,8 +62,12 @@ radeon_glamor_create_screen_resources(ScreenPtr screen)
 		return FALSE;
 #endif
 
-	if (!glamor_egl_create_textured_screen(screen,
-					       info->front_buffer->bo.radeon->handle,
+	if (info->front_buffer->flags & RADEON_BO_FLAGS_GBM)
+		handle = gbm_bo_get_handle(info->front_buffer->bo.gbm).u32;
+	else
+		handle = info->front_buffer->bo.radeon->handle;
+
+	if (!glamor_egl_create_textured_screen(screen, handle,
 					       scrn->displayWidth *
 					       info->pixel_bytes))
 		return FALSE;
@@ -136,6 +141,13 @@ radeon_glamor_pre_init(ScrnInfoPtr scrn)
 	}
 #endif
 
+	info->gbm = gbm_create_device(pRADEONEnt->fd);
+	if (!info->gbm) {
+		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
+			   "gbm_create_device returned NULL\n");
+		return FALSE;
+	}
+
 	/* Load glamor module */
 	if ((glamor_module = xf86LoadSubModule(scrn, GLAMOR_EGL_MODULE_NAME))) {
 		version = xf86GetModuleVersion(glamor_module);
@@ -164,10 +176,21 @@ radeon_glamor_pre_init(ScrnInfoPtr scrn)
 }
 
 Bool
-radeon_glamor_create_textured_pixmap(PixmapPtr pixmap, struct radeon_pixmap *priv)
+radeon_glamor_create_textured_pixmap(PixmapPtr pixmap, struct radeon_buffer *bo)
 {
-	return glamor_egl_create_textured_pixmap(pixmap, priv->bo->bo.radeon->handle,
-						 pixmap->devKind);
+	ScrnInfoPtr scrn = xf86ScreenToScrn(pixmap->drawable.pScreen);
+	RADEONInfoPtr info = RADEONPTR(scrn);
+	uint32_t handle;
+
+	if (!info->use_glamor)
+		return TRUE;
+
+	if (bo->flags & RADEON_BO_FLAGS_GBM)
+		handle = gbm_bo_get_handle(bo->bo.gbm).u32;
+	else
+		handle = bo->bo.radeon->handle;
+
+	return glamor_egl_create_textured_pixmap(pixmap, handle, pixmap->devKind);
 }
 
 static Bool radeon_glamor_destroy_pixmap(PixmapPtr pixmap)
@@ -179,13 +202,6 @@ static Bool radeon_glamor_destroy_pixmap(PixmapPtr pixmap)
 #endif
 
 	if (pixmap->refcnt == 1) {
-		if (pixmap->devPrivate.ptr) {
-			struct radeon_buffer *bo = radeon_get_pixmap_bo(pixmap);
-
-			if (bo)
-				radeon_bo_unmap(bo->bo.radeon);
-		}
-
 #ifdef HAVE_GLAMOR_EGL_DESTROY_TEXTURED_PIXMAP
 		glamor_egl_destroy_textured_pixmap(pixmap);
 #endif
@@ -259,7 +275,7 @@ radeon_glamor_create_pixmap(ScreenPtr screen, int w, int h, int depth,
 
 		screen->ModifyPixmapHeader(pixmap, w, h, 0, 0, stride, NULL);
 
-		if (!radeon_glamor_create_textured_pixmap(pixmap, priv))
+		if (!radeon_glamor_create_textured_pixmap(pixmap, priv->bo))
 			goto fallback_glamor;
 
 		pixmap->devPrivate.ptr = NULL;
@@ -390,13 +406,12 @@ radeon_glamor_set_shared_pixmap_backing(PixmapPtr pixmap, void *handle)
 {
 	ScreenPtr screen = pixmap->drawable.pScreen;
 	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
-	struct radeon_pixmap *priv;
 
 	if (!radeon_set_shared_pixmap_backing(pixmap, handle, NULL))
 		return FALSE;
 
-	priv = radeon_get_pixmap_private(pixmap);
-	if (!radeon_glamor_create_textured_pixmap(pixmap, priv)) {
+	if (!radeon_glamor_create_textured_pixmap(pixmap,
+						  radeon_get_pixmap_bo(pixmap))) {
 		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
 			   "Failed to get PRIME drawable for glamor pixmap.\n");
 		return FALSE;
diff --git a/src/radeon_glamor.h b/src/radeon_glamor.h
index ec42df1f1..2740ab335 100644
--- a/src/radeon_glamor.h
+++ b/src/radeon_glamor.h
@@ -33,6 +33,12 @@ struct radeon_pixmap;
 
 #ifdef USE_GLAMOR
 
+#ifndef HAVE_GLAMOR_FINISH
+#include <GL/gl.h>
+#endif
+
+#include <gbm.h>
+
 #define GLAMOR_FOR_XORG  1
 #include <glamor.h>
 
@@ -65,12 +71,27 @@ void radeon_glamor_screen_init(ScreenPtr screen);
 Bool radeon_glamor_create_screen_resources(ScreenPtr screen);
 void radeon_glamor_free_screen(int scrnIndex, int flags);
 
-Bool radeon_glamor_create_textured_pixmap(PixmapPtr pixmap, struct radeon_pixmap *priv);
+Bool radeon_glamor_create_textured_pixmap(PixmapPtr pixmap, struct radeon_buffer *bo);
 void radeon_glamor_exchange_buffers(PixmapPtr src, PixmapPtr dst);
 PixmapPtr radeon_glamor_set_pixmap_bo(DrawablePtr drawable, PixmapPtr pixmap);
 
 XF86VideoAdaptorPtr radeon_glamor_xv_init(ScreenPtr pScreen, int num_adapt);
 
+static inline void
+radeon_glamor_finish(ScrnInfoPtr scrn)
+{
+	RADEONInfoPtr info = RADEONPTR(scrn);
+
+#if HAVE_GLAMOR_FINISH
+	glamor_finish(scrn->pScreen);
+#else
+	glamor_block_handler(scrn);
+	glFinish();
+#endif
+
+	info->gpu_flushed++;
+}
+
 #else
 
 static inline Bool radeon_glamor_pre_init(ScrnInfoPtr scrn) { return FALSE; }
@@ -79,7 +100,7 @@ static inline void radeon_glamor_fini(ScreenPtr screen) { }
 static inline Bool radeon_glamor_create_screen_resources(ScreenPtr screen) { return FALSE; }
 static inline void radeon_glamor_free_screen(int scrnIndex, int flags) { }
 
-static inline Bool radeon_glamor_create_textured_pixmap(PixmapPtr pixmap, struct radeon_pixmap *priv) { return TRUE; }
+static inline Bool radeon_glamor_create_textured_pixmap(PixmapPtr pixmap, struct radeon_buffer *bo) { return TRUE; }
 
 static inline void radeon_glamor_exchange_buffers(PixmapPtr src, PixmapPtr dst) {}
 static inline PixmapPtr radeon_glamor_set_pixmap_bo(DrawablePtr drawable, PixmapPtr pixmap) { return pixmap; }
@@ -87,6 +108,9 @@ static inline PixmapPtr radeon_glamor_set_pixmap_bo(DrawablePtr drawable, Pixmap
 static inline struct radeon_pixmap *radeon_get_pixmap_private(PixmapPtr pixmap) { return NULL; }
 
 static inline XF86VideoAdaptorPtr radeon_glamor_xv_init(ScreenPtr pScreen, int num_adapt) { return NULL; }
+
+static inline void radeon_glamor_finish(ScrnInfoPtr pScrn) { }
+
 #endif
 
 #endif /* RADEON_GLAMOR_H */
diff --git a/src/radeon_kms.c b/src/radeon_kms.c
index d3eeebea8..72e60831e 100644
--- a/src/radeon_kms.c
+++ b/src/radeon_kms.c
@@ -212,6 +212,11 @@ static void RADEONFreeRec(ScrnInfoPtr pScrn)
 	    info->accel_state = NULL;
 	}
 
+#ifdef USE_GLAMOR
+	if (info->gbm)
+	    gbm_device_destroy(info->gbm);
+#endif
+
 	pEnt = info->pEnt;
 	free(pScrn->driverPrivate);
 	pScrn->driverPrivate = NULL;
@@ -2269,7 +2274,11 @@ Bool RADEONScreenInit_KMS(ScreenPtr pScreen, int argc, char **argv)
 	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "radeon_setup_kernel_mem failed\n");
 	return FALSE;
     }
-    front_ptr = info->front_buffer->bo.radeon->ptr;
+
+    if (!(info->front_buffer->flags & RADEON_BO_FLAGS_GBM))
+	front_ptr = info->front_buffer->bo.radeon->ptr;
+    else
+	front_ptr = NULL;
 
     if (info->r600_shadow_fb) {
 	info->fb_shadow = calloc(1,
@@ -2739,21 +2748,24 @@ static Bool radeon_setup_kernel_mem(ScreenPtr pScreen)
                 ErrorF("Failed to map cursor buffer memory\n");
             }
         }
+
+	if (!info->use_glamor) {
 #if X_BYTE_ORDER == X_BIG_ENDIAN
-	switch (cpp) {
-	case 4:
-	    tiling_flags |= RADEON_TILING_SWAP_32BIT;
-	    break;
-	case 2:
-	    tiling_flags |= RADEON_TILING_SWAP_16BIT;
-	    break;
-	}
-	if (info->ChipFamily < CHIP_FAMILY_R600 &&
-	    info->r600_shadow_fb && tiling_flags)
-	    tiling_flags |= RADEON_TILING_SURFACE;
+	    switch (cpp) {
+	    case 4:
+		tiling_flags |= RADEON_TILING_SWAP_32BIT;
+		break;
+	    case 2:
+		tiling_flags |= RADEON_TILING_SWAP_16BIT;
+		break;
+	    }
+	    if (info->ChipFamily < CHIP_FAMILY_R600 &&
+		info->r600_shadow_fb && tiling_flags)
+		tiling_flags |= RADEON_TILING_SURFACE;
 #endif
-	if (tiling_flags)
-            radeon_bo_set_tiling(info->front_buffer->bo.radeon, tiling_flags, pitch);
+	    if (tiling_flags)
+		radeon_bo_set_tiling(info->front_buffer->bo.radeon, tiling_flags, pitch);
+	}
     }
 
     pScrn->displayWidth = pitch / cpp;
-- 
2.18.0



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