xf86-video-glamo fixes, libdrm with glamo support

x11-drivers/xf86-video-glamo:
 - Converted to EAPI 2
 - Added KMS use flag
 - Now depends on x11-libs/libdrm[video_cards_glamo]

x11-libs/libdrm:
 - Initial commit of upstream libdrm patched with glamo support.
 - Changes copied from: http://git.bitwiz.org.uk/?p=libdrm.git;a=summary
  Original made by Thomas White et al. who hereby have our thanks.

Thanks sleipnir :)

3 files changed, 1142 insertions, 0 deletions

diff --git a/x11-libs/libdrm/Manifest b/x11-libs/libdrm/Manifest
new file mode 100644
index 0000000..0071257
--- /dev/null
+++ b/x11-libs/libdrm/Manifest
@@ -0,0 +1,3 @@
+AUX libdrm-2.4.20-glamo.patch 36132 RMD160 48a6b18dadb7180e1ea158f7bf4fd3b92baf0d87 SHA1 2b591ef5cdb0dc572085150194f6ac6b903008d2 SHA256 064408b073efbed7f53a3efbafe405c73343fdc7f19d96e20ffa88e3eddaa25a
+DIST libdrm-2.4.20.tar.bz2 400812 RMD160 5581c45abfb9cb2bd0b95d4754d7812bb8323e3a SHA1 f1448ac0f1c7a5f74a86d2fb50941fc12dc932db SHA256 24b5316839c1d459066eaee160132d45931462e301740a660932907350415cb9
+EBUILD libdrm-2.4.20.ebuild 1552 RMD160 fa604492cbe46442008231aa0ea4aa599c7c1c55 SHA1 7c9aaad6554e40d654fecb5de2292fc91f2ab1ba SHA256 494390c3ab3d748ea29da117d03245888e44ecbd3b2f063d4842fa93a2a415e5
diff --git a/x11-libs/libdrm/files/libdrm-2.4.20-glamo.patch b/x11-libs/libdrm/files/libdrm-2.4.20-glamo.patch
new file mode 100644
index 0000000..d9d6103
--- /dev/null
+++ b/x11-libs/libdrm/files/libdrm-2.4.20-glamo.patch
@@ -0,0 +1,1088 @@
+--- libdrm/Makefile.am	2010-03-22 21:39:27.000000000 +0100
++++ libdrm-glamo/Makefile.am	2010-06-11 15:54:45.208711334 +0200
+@@ -41,7 +41,11 @@
+ RADEON_SUBDIR = radeon
+ endif
+ 
+-SUBDIRS = . $(LIBKMS_SUBDIR) $(INTEL_SUBDIR) $(NOUVEAU_SUBDIR) $(RADEON_SUBDIR) tests include
++if HAVE_GLAMO
++GLAMO_SUBDIR = glamo
++endif
++
++SUBDIRS = . $(LIBKMS_SUBDIR) $(INTEL_SUBDIR) $(NOUVEAU_SUBDIR) $(RADEON_SUBDIR) $(GLAMO_SUBDIR) tests include
+ 
+ libdrm_la_LTLIBRARIES = libdrm.la
+ libdrm_ladir = $(libdir)
+--- libdrm/configure.ac	2010-04-02 22:45:40.000000000 +0200
++++ libdrm-glamo/configure.ac	2010-06-12 02:39:08.323460456 +0200
+@@ -46,8 +46,8 @@
+ 
+ AC_ARG_ENABLE(libkms,
+ 	      AS_HELP_STRING([--disable-libkms],
+-	      [Disable KMS mm abstraction library (default: enabled)]),
+-	      [LIBKMS=$enableval], [LIBKMS=yes])
++	      [Disable KMS mm abstraction library (default: auto)]),
++	      [LIBKMS=$enableval], [LIBKMS=auto])
+ 
+ AC_ARG_ENABLE(intel,
+ 	      AS_HELP_STRING([--disable-intel],
+@@ -70,6 +70,11 @@
+ 	      [NOUVEAU=$enableval], [NOUVEAU=no])
+ 
+ 
++AC_ARG_ENABLE(glamo-experimental-api,
++	      AS_HELP_STRING([--enable-glamo-experimental-api],
++	      [Enable support for Glamo's KMS API (default: disabled)]),
++	      [GLAMO=$enableval], [GLAMO=no])
++
+ dnl ===========================================================================
+ dnl check compiler flags
+ AC_DEFUN([LIBDRM_CC_TRY_FLAG], [
+@@ -146,6 +151,14 @@
+ 	AC_DEFINE(UDEV, 1, [Have UDEV support])
+ fi
+ 
++AC_CANONICAL_HOST
++if test "x$LIBKMS" = xauto ; then
++	case $host_os in
++		linux*)		LIBKMS="yes" ;;
++		*)		LIBKMS="no" ;;
++	esac
++fi
++
+ AM_CONDITIONAL(HAVE_LIBKMS, [test "x$LIBKMS" = xyes])
+ 
+ AM_CONDITIONAL(HAVE_VMWGFX, [test "x$VMWGFX" = xyes])
+@@ -158,6 +171,8 @@
+ 	AC_DEFINE(HAVE_NOUVEAU, 1, [Have nouveau (nvidia) support])
+ fi
+ 
++AM_CONDITIONAL(HAVE_GLAMO, [test "x$GLAMO" = xyes])
++
+ PKG_CHECK_MODULES(CAIRO, cairo, [HAVE_CAIRO=yes], [HAVE_CAIRO=no])
+ if test "x$HAVE_CAIRO" = xyes; then
+ 	AC_DEFINE(HAVE_CAIRO, 1, [Have cairo support])
+@@ -251,6 +266,8 @@
+ 	radeon/libdrm_radeon.pc
+ 	nouveau/Makefile
+ 	nouveau/libdrm_nouveau.pc
++	glamo/Makefile
++	glamo/libdrm_glamo.pc
+ 	tests/Makefile
+ 	tests/modeprint/Makefile
+ 	tests/modetest/Makefile
+--- libdrm/glamo/Makefile.am	1970-01-01 01:00:00.000000000 +0100
++++ libdrm-glamo/glamo/Makefile.am	2010-06-11 15:54:45.209710943 +0200
+@@ -0,0 +1,52 @@
++# Copyright (c) 2009 Thomas Whtie <taw@bitwiz.org.uk>
++# Based on libdrm-glamo Copyright © 2008 Jérôme Glisse
++#
++# Permission is hereby granted, free of charge, to any person obtaining a
++# copy of this software and associated documentation files (the "Software"),
++# to deal in the Software without restriction, including without limitation
++# the rights to use, copy, modify, merge, publish, distribute, sublicense,
++# and/or sell copies of the Software, and to permit persons to whom the
++# Software is furnished to do so, subject to the following conditions:
++#
++# The above copyright notice and this permission notice (including the next
++# paragraph) shall be included in all copies or substantial portions of the
++# Software.
++#
++# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
++# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
++# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
++# IN THE SOFTWARE.
++#
++# Authors:
++#    Jérôme Glisse <glisse@freedesktop.org>
++#    Thomas White <taw@bitwiz.org.uk>
++
++AM_CFLAGS = \
++	$(WARN_CFLAGS) \
++	-I$(top_srcdir) \
++	-I$(top_srcdir)/glamo \
++	$(PTHREADSTUBS_CFLAGS) \
++	-I$(top_srcdir)/include/drm
++
++libdrm_glamo_la_LTLIBRARIES = libdrm_glamo.la
++libdrm_glamo_ladir = $(libdir)
++libdrm_glamo_la_LDFLAGS = -version-number 1:0:0 -no-undefined
++libdrm_glamo_la_LIBADD = ../libdrm.la @PTHREADSTUBS_LIBS@
++
++libdrm_glamo_la_SOURCES = \
++	glamo_bo_gem.c \
++	glamo_track.c
++
++libdrm_glamoincludedir = ${includedir}/libdrm
++libdrm_glamoinclude_HEADERS = \
++	glamo_bo.h \
++	glamo_bo_gem.h \
++	glamo_track.h
++
++pkgconfigdir = @pkgconfigdir@
++pkgconfig_DATA = libdrm_glamo.pc
++
++EXTRA_DIST = libdrm_glamo.pc.in
+--- libdrm/glamo/glamo_bo.h	1970-01-01 01:00:00.000000000 +0100
++++ libdrm-glamo/glamo/glamo_bo.h	2010-06-11 15:54:45.209710943 +0200
+@@ -0,0 +1,183 @@
++/*
++ * Copyright (c) 2009 Thomas White
++ *
++ * Heavily based on radeon_bo.h
++ * Copyright © 2008 Jérôme Glisse
++ * All Rights Reserved.
++ *
++ * Permission is hereby granted, free of charge, to any person obtaining
++ * a copy of this software and associated documentation files (the
++ * "Software"), to deal in the Software without restriction, including
++ * without limitation the rights to use, copy, modify, merge, publish,
++ * distribute, sub license, and/or sell copies of the Software, and to
++ * permit persons to whom the Software is furnished to do so, subject to
++ * the following conditions:
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
++ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
++ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
++ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
++ * USE OR OTHER DEALINGS IN THE SOFTWARE.
++ *
++ * The above copyright notice and this permission notice (including the
++ * next paragraph) shall be included in all copies or substantial portions
++ * of the Software.
++ */
++/*
++ * Authors:
++ *      Jérôme Glisse <glisse@freedesktop.org>
++ *	Thomas White <taw@bitwiz.org.uk>
++ */
++#ifndef GLAMO_BO_H
++#define GLAMO_BO_H
++
++#include <stdio.h>
++#include <stdint.h>
++#include "glamo_track.h"
++
++/* bo object */
++#define GLAMO_BO_FLAGS_MACRO_TILE  1
++#define GLAMO_BO_FLAGS_MICRO_TILE  2
++
++struct glamo_bo_manager;
++
++struct glamo_bo {
++    uint32_t                    alignment;
++    uint32_t                    handle;
++    uint32_t                    size;
++    uint32_t                    domains;
++    uint32_t                    flags;
++    unsigned                    cref;
++#ifdef GLAMO_BO_TRACK
++    struct glamo_track		*track;
++#endif
++    struct glamo_bo_manager	*bom;
++    void			*virtual;
++    uint32_t			space_accounted;
++};
++
++/* bo functions */
++struct glamo_bo_funcs {
++    struct glamo_bo *(*bo_open)(struct glamo_bo_manager *bom,
++                                 uint32_t handle,
++                                 uint32_t size,
++                                 uint32_t alignment,
++                                 uint32_t domains,
++                                 uint32_t flags);
++    void (*bo_ref)(struct glamo_bo *bo);
++    struct glamo_bo *(*bo_unref)(struct glamo_bo *bo);
++    int (*bo_map)(struct glamo_bo *bo, int write);
++    int (*bo_unmap)(struct glamo_bo *bo);
++    int (*bo_wait)(struct glamo_bo *bo);
++};
++
++struct glamo_bo_manager {
++    struct glamo_bo_funcs  *funcs;
++    int                     fd;
++    struct glamo_tracker   tracker;
++};
++
++static inline void _glamo_bo_debug(struct glamo_bo *bo,
++                                    const char *op,
++                                    const char *file,
++                                    const char *func,
++                                    int line)
++{
++    fprintf(stderr, "%s %p 0x%08X 0x%08X 0x%08X [%s %s %d]\n",
++            op, (void *)bo, bo->handle, bo->size, bo->cref, file, func, line);
++}
++
++static inline struct glamo_bo *_glamo_bo_open(struct glamo_bo_manager *bom,
++                                                uint32_t handle,
++                                                uint32_t size,
++                                                uint32_t alignment,
++                                                uint32_t domains,
++                                                uint32_t flags,
++                                                const char *file,
++                                                const char *func,
++                                                int line)
++{
++    struct glamo_bo *bo;
++
++    bo = bom->funcs->bo_open(bom, handle, size, alignment, domains, flags);
++#ifdef GLAMO_BO_TRACK
++    if (bo) {
++        bo->track = glamo_tracker_add_track(&bom->tracker, bo->handle);
++        glamo_track_add_event(bo->track, file, func, "open", line);
++    }
++#endif
++    return bo;
++}
++
++static inline void _glamo_bo_ref(struct glamo_bo *bo,
++                                  const char *file,
++                                  const char *func,
++                                  int line)
++{
++    bo->cref++;
++#ifdef GLAMO_BO_TRACK
++    glamo_track_add_event(bo->track, file, func, "ref", line);
++#endif
++    bo->bom->funcs->bo_ref(bo);
++}
++
++static inline struct glamo_bo *_glamo_bo_unref(struct glamo_bo *bo,
++                                                 const char *file,
++                                                 const char *func,
++                                                 int line)
++{
++    bo->cref--;
++#ifdef GLAMO_BO_TRACK
++    glamo_track_add_event(bo->track, file, func, "unref", line);
++    if (bo->cref <= 0) {
++        glamo_tracker_remove_track(&bo->bom->tracker, bo->track);
++        bo->track = NULL;
++    }
++#endif
++    return bo->bom->funcs->bo_unref(bo);
++}
++
++static inline int _glamo_bo_map(struct glamo_bo *bo,
++                                 int write,
++                                 const char *file,
++                                 const char *func,
++                                 int line)
++{
++    return bo->bom->funcs->bo_map(bo, write);
++}
++
++static inline int _glamo_bo_unmap(struct glamo_bo *bo,
++                                   const char *file,
++                                   const char *func,
++                                   int line)
++{
++    return bo->bom->funcs->bo_unmap(bo);
++}
++
++static inline int _glamo_bo_wait(struct glamo_bo *bo,
++                                  const char *file,
++                                  const char *func,
++                                  int line)
++{
++    return bo->bom->funcs->bo_wait(bo);
++}
++
++#define glamo_bo_open(bom, h, s, a, d, f)\
++    _glamo_bo_open(bom, h, s, a, d, f, __FILE__, __FUNCTION__, __LINE__)
++#define glamo_bo_ref(bo)\
++    _glamo_bo_ref(bo, __FILE__, __FUNCTION__, __LINE__)
++#define glamo_bo_unref(bo)\
++    _glamo_bo_unref(bo, __FILE__, __FUNCTION__, __LINE__)
++#define glamo_bo_map(bo, w)\
++    _glamo_bo_map(bo, w, __FILE__, __FUNCTION__, __LINE__)
++#define glamo_bo_unmap(bo)\
++    _glamo_bo_unmap(bo, __FILE__, __FUNCTION__, __LINE__)
++#define glamo_bo_debug(bo, opcode)\
++    _glamo_bo_debug(bo, opcode, __FILE__, __FUNCTION__, __LINE__)
++#define glamo_bo_wait(bo) \
++    _glamo_bo_wait(bo, __FILE__, __func__, __LINE__)
++
++#endif
+--- libdrm/glamo/glamo_bo_gem.c	1970-01-01 01:00:00.000000000 +0100
++++ libdrm-glamo/glamo/glamo_bo_gem.c	2010-06-11 15:54:45.209710943 +0200
+@@ -0,0 +1,336 @@
++/*
++ * Copyright © 2009 Thomas White
++ *
++ * Based on radeon_bo_gem.c, to which the following notice applies:
++ *
++ * Copyright © 2008 Dave Airlie
++ * Copyright © 2008 Jérôme Glisse
++ * All Rights Reserved.
++ *
++ * Permission is hereby granted, free of charge, to any person obtaining
++ * a copy of this software and associated documentation files (the
++ * "Software"), to deal in the Software without restriction, including
++ * without limitation the rights to use, copy, modify, merge, publish,
++ * distribute, sub license, and/or sell copies of the Software, and to
++ * permit persons to whom the Software is furnished to do so, subject to
++ * the following conditions:
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
++ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
++ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
++ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
++ * USE OR OTHER DEALINGS IN THE SOFTWARE.
++ *
++ * The above copyright notice and this permission notice (including the
++ * next paragraph) shall be included in all copies or substantial portions
++ * of the Software.
++ */
++/*
++ * Authors:
++ *      Dave Airlie
++ *      Jérôme Glisse <glisse@freedesktop.org>
++ *
++ *
++ * Memory mapping functions are based on intel_bufmgr_gem.c, to which the
++ * following notice applies:
++ *
++ * Copyright © 2007 Red Hat Inc.
++ * Copyright © 2007 Intel Corporation
++ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
++ * All Rights Reserved.
++ *
++ * Permission is hereby granted, free of charge, to any person obtaining a
++ * copy of this software and associated documentation files (the
++ * "Software"), to deal in the Software without restriction, including
++ * without limitation the rights to use, copy, modify, merge, publish,
++ * distribute, sub license, and/or sell copies of the Software, and to
++ * permit persons to whom the Software is furnished to do so, subject to
++ * the following conditions:
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
++ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
++ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
++ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
++ * USE OR OTHER DEALINGS IN THE SOFTWARE.
++ *
++ * The above copyright notice and this permission notice (including the
++ * next paragraph) shall be included in all copies or substantial portions
++ * of the Software.
++ *
++ *
++ **************************************************************************/
++/*
++ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
++ *          Keith Whitwell <keithw-at-tungstengraphics-dot-com>
++ *	    Eric Anholt <eric@anholt.net>
++ *	    Dave Airlie <airlied@linux.ie>
++ */
++
++#ifdef HAVE_CONFIG_H
++#include "config.h"
++#endif
++
++#include <stdio.h>
++#include <stdint.h>
++#include <stdlib.h>
++#include <string.h>
++#include <sys/mman.h>
++#include <sys/ioctl.h>
++#include <errno.h>
++
++#include "xf86drm.h"
++#include "drm.h"
++#include "glamo_drm.h"
++#include "glamo_bo.h"
++#include "glamo_bo_gem.h"
++
++struct glamo_bo_gem {
++	struct glamo_bo   base;
++	uint32_t          name;
++	int               map_count;
++};
++
++struct bo_manager_gem {
++	struct glamo_bo_manager    base;
++};
++
++static struct glamo_bo *bo_open(struct glamo_bo_manager *bom,
++                                 uint32_t handle,
++                                 uint32_t size,
++                                 uint32_t alignment,
++                                 uint32_t domains,
++                                 uint32_t flags)
++{
++	struct glamo_bo_gem *bo;
++	int r;
++
++	bo = (struct glamo_bo_gem*)calloc(1, sizeof(struct glamo_bo_gem));
++	if (bo == NULL) {
++		return NULL;
++	}
++
++	bo->base.bom = bom;
++	bo->base.handle = 0;
++	bo->base.size = size;
++	bo->base.alignment = alignment;
++	bo->base.domains = domains;
++	bo->base.flags = flags;
++	bo->base.cref = 0;
++	bo->map_count = 0;
++	bo->base.virtual = NULL;
++	if (handle) {
++		struct drm_gem_open open_arg;
++
++		memset(&open_arg, 0, sizeof(open_arg));
++		open_arg.name = handle;
++		r = ioctl(bom->fd, DRM_IOCTL_GEM_OPEN, &open_arg);
++		if (r != 0) {
++			free(bo);
++			return NULL;
++		}
++		bo->base.handle = open_arg.handle;
++		bo->base.size = open_arg.size;
++		bo->name = handle;
++	} else {
++		struct drm_glamo_gem_create args;
++
++		args.size = size;
++		args.alignment = alignment;
++		args.initial_domain = bo->base.domains;
++		args.no_backing_store = 0;
++		args.handle = 0;
++		r = drmCommandWriteRead(bom->fd, DRM_GLAMO_GEM_CREATE,
++		                        &args, sizeof(args));
++		bo->base.handle = args.handle;
++		if (r) {
++			fprintf(stderr, "Failed to allocate :\n");
++			fprintf(stderr, "   size      : %d bytes\n", size);
++			fprintf(stderr, "   alignment : %d bytes\n", alignment);
++			free(bo);
++			return NULL;
++		}
++	}
++	glamo_bo_ref((struct glamo_bo*)bo);
++	return (struct glamo_bo*)bo;
++}
++
++static void bo_ref(struct glamo_bo *bo)
++{
++}
++
++static struct glamo_bo *bo_unref(struct glamo_bo *bo)
++{
++	struct glamo_bo_gem *bo_gem = (struct glamo_bo_gem*)bo;
++	struct drm_gem_close args;
++
++	if (bo == NULL) {
++		return NULL;
++	}
++	if (bo->cref) {
++		return bo;
++	}
++	if (bo_gem->map_count) {
++		munmap(bo->virtual, bo->size);
++	}
++
++	/* close object */
++	args.handle = bo->handle;
++	ioctl(bo->bom->fd, DRM_IOCTL_GEM_CLOSE, &args);
++	memset(bo_gem, 0, sizeof(struct glamo_bo_gem));
++	free(bo_gem);
++	return NULL;
++}
++
++static int bo_map(struct glamo_bo *bo, int write)
++{
++	struct glamo_bo_gem *bo_gem;
++	struct glamo_bo_manager *bufmgr;
++	int ret;
++
++	bo_gem = (struct glamo_bo_gem *)bo;
++	bufmgr = (struct glamo_bo_manager*)bo->bom;
++
++	/* Get a mapping of the buffer if we haven't before. */
++	if (bo->virtual == NULL) {
++
++		struct drm_glamo_gem_mmap mmap_arg;
++
++		memset(&mmap_arg, 0, sizeof(mmap_arg));
++		mmap_arg.handle = bo->handle;
++
++		/* Get the fake offset back... */
++		ret = ioctl(bufmgr->fd, DRM_IOCTL_GLAMO_GEM_MMAP, &mmap_arg);
++		if (ret != 0) {
++			fprintf(stderr,
++			        "%s:%d: Error preparing BO map %d (%d): %s .\n",
++			        __FILE__, __LINE__,
++			        bo->handle, bo_gem->name,
++			        strerror(errno));
++			return ret;
++		}
++		/* and mmap it */
++		bo->virtual = mmap(0, bo->size, PROT_READ | PROT_WRITE,
++		                       MAP_SHARED, bufmgr->fd,
++		                       mmap_arg.offset);
++		if (bo->virtual == MAP_FAILED) {
++			fprintf(stderr,
++			        "%s:%d: Error mapping buffer %d (%d): %s .\n",
++			        __FILE__, __LINE__,
++			        bo->handle, bo_gem->name,
++			        strerror(errno));
++			return errno;
++		}
++	}
++	bo_gem->map_count++;
++
++	return 0;
++}
++
++static int bo_unmap(struct glamo_bo *bo)
++{
++	struct glamo_bo_gem *bo_gem = (struct glamo_bo_gem*)bo;
++
++	if ( bo_gem->map_count == 0 ) {
++		fprintf(stderr, "Not unmapping %p, because its map count"
++		                " is already zero.\n", bo_gem);
++		return 0;
++	}
++
++	if (--bo_gem->map_count > 0) {
++		return 0;
++	}
++	munmap(bo->virtual, bo->size);
++	bo->virtual = NULL;
++	return 0;
++}
++
++static int bo_wait(struct glamo_bo *bo)
++{
++	struct drm_glamo_gem_wait_rendering args;
++	int ret;
++
++	args.handle = bo->handle;
++	args.have_handle = 1;
++	do {
++		ret = drmCommandWriteRead(bo->bom->fd,
++		                          DRM_GLAMO_GEM_WAIT_RENDERING,
++		                          &args, sizeof(args));
++	} while (ret == -EAGAIN);
++	return ret;
++}
++
++static struct glamo_bo_funcs bo_gem_funcs = {
++	bo_open,
++	bo_ref,
++	bo_unref,
++	bo_map,
++	bo_unmap,
++	bo_wait
++};
++
++struct glamo_bo_manager *glamo_bo_manager_gem_ctor(int fd)
++{
++	struct bo_manager_gem *bomg;
++
++	bomg = (struct bo_manager_gem*)calloc(1, sizeof(struct bo_manager_gem));
++	if (bomg == NULL) return NULL;
++
++	bomg->base.funcs = &bo_gem_funcs;
++	bomg->base.fd = fd;
++	return (struct glamo_bo_manager*)bomg;
++}
++
++void glamo_bo_manager_gem_dtor(struct glamo_bo_manager *bom)
++{
++	struct bo_manager_gem *bomg = (struct bo_manager_gem*)bom;
++
++	if (bom == NULL) return;
++	free(bomg);
++}
++
++uint32_t glamo_gem_get_name(struct glamo_bo *bo)
++{
++	struct glamo_bo_gem *bo_gem = (struct glamo_bo_gem*)bo;
++	return bo_gem->name;
++}
++
++int glamo_gem_name_buffer(struct glamo_bo *bo, uint32_t *name)
++{
++	struct drm_gem_flink flink;
++	int r;
++
++	if ( !bo ) {
++		fprintf(stderr, "No buffer object!\n");
++		return -1;
++	}
++
++	flink.handle = bo->handle;
++	r = ioctl(bo->bom->fd, DRM_IOCTL_GEM_FLINK, &flink);
++	if (r) return r;
++
++	*name = flink.name;
++	return 0;
++}
++
++int glamo_bo_subdata(struct glamo_bo *bo, unsigned long offset,
++                     unsigned long size, const void *data)
++{
++	int ret;
++
++	if (size == 0 || data == NULL)
++		return 0;
++
++	ret = bo_map(bo, 1);
++	if ( ret ) return ret;
++
++	memcpy((unsigned char *)bo->virtual + offset, data, size);
++
++	bo_unmap(bo);
++
++	return 0;
++}
+--- libdrm/glamo/glamo_bo_gem.h	1970-01-01 01:00:00.000000000 +0100
++++ libdrm-glamo/glamo/glamo_bo_gem.h	2010-06-11 15:54:45.209710943 +0200
+@@ -0,0 +1,43 @@
++/*
++ * Copyright © 2008 Dave Airlie
++ * Copyright © 2008 Jérôme Glisse
++ * All Rights Reserved.
++ *
++ * Permission is hereby granted, free of charge, to any person obtaining
++ * a copy of this software and associated documentation files (the
++ * "Software"), to deal in the Software without restriction, including
++ * without limitation the rights to use, copy, modify, merge, publish,
++ * distribute, sub license, and/or sell copies of the Software, and to
++ * permit persons to whom the Software is furnished to do so, subject to
++ * the following conditions:
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
++ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
++ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
++ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
++ * USE OR OTHER DEALINGS IN THE SOFTWARE.
++ *
++ * The above copyright notice and this permission notice (including the
++ * next paragraph) shall be included in all copies or substantial portions
++ * of the Software.
++ */
++/*
++ * Authors:
++ *      Dave Airlie
++ *      Jérôme Glisse <glisse@freedesktop.org>
++ */
++#ifndef GLAMO_BO_GEM_H
++#define GLAMO_BO_GEM_H
++
++#include "glamo_bo.h"
++
++struct glamo_bo_manager *glamo_bo_manager_gem_ctor(int fd);
++void glamo_bo_manager_gem_dtor(struct glamo_bo_manager *bom);
++int glamo_gem_name_buffer(struct glamo_bo *bo, uint32_t *name);
++uint32_t glamo_gem_get_name(struct glamo_bo *bo);
++extern int glamo_bo_subdata(struct glamo_bo *bo, unsigned long offset,
++                            unsigned long size, const void *data);
++#endif
+--- libdrm/glamo/glamo_track.c	1970-01-01 01:00:00.000000000 +0100
++++ libdrm-glamo/glamo/glamo_track.c	2010-06-11 15:54:45.209710943 +0200
+@@ -0,0 +1,140 @@
++/* 
++ * Copyright © 2008 Jérôme Glisse
++ * All Rights Reserved.
++ * 
++ * Permission is hereby granted, free of charge, to any person obtaining
++ * a copy of this software and associated documentation files (the
++ * "Software"), to deal in the Software without restriction, including
++ * without limitation the rights to use, copy, modify, merge, publish,
++ * distribute, sub license, and/or sell copies of the Software, and to
++ * permit persons to whom the Software is furnished to do so, subject to
++ * the following conditions:
++ * 
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
++ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
++ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
++ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
++ * USE OR OTHER DEALINGS IN THE SOFTWARE.
++ *
++ * The above copyright notice and this permission notice (including the
++ * next paragraph) shall be included in all copies or substantial portions
++ * of the Software.
++ */
++/*
++ * Authors:
++ *      Jérôme Glisse <glisse@freedesktop.org>
++ */
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#include "glamo_track.h"
++
++void glamo_track_add_event(struct glamo_track *track,
++                            const char *file,
++                            const char *func,
++                            const char *op,
++                            unsigned line)
++{
++    struct glamo_track_event *event;
++
++    if (track == NULL) {
++        return;
++    }
++    event = (void*)calloc(1,sizeof(struct glamo_track_event));
++    if (event == NULL) {
++        return;
++    }
++    event->line = line;
++    event->file = strdup(file);
++    event->func = strdup(func);
++    event->op = strdup(op);
++    if (event->file == NULL || event->func == NULL || event->op == NULL) {
++        free(event->file);
++        free(event->func);
++        free(event->op);
++        free(event);
++        return;
++    }
++    event->next = track->events;
++    track->events = event;
++}
++
++struct glamo_track *glamo_tracker_add_track(struct glamo_tracker *tracker,
++                                              unsigned key)
++{
++    struct glamo_track *track;
++
++    track = (struct glamo_track*)calloc(1, sizeof(struct glamo_track));
++    if (track) {
++        track->next = tracker->tracks.next;
++        track->prev = &tracker->tracks;
++        tracker->tracks.next = track;
++        if (track->next) {
++            track->next->prev = track;
++        }
++        track->key = key;
++        track->events = NULL;
++    }
++    return track;
++}
++
++void glamo_tracker_remove_track(struct glamo_tracker *tracker,
++                                 struct glamo_track *track)
++{
++    struct glamo_track_event *event;
++    void *tmp;
++
++    if (track == NULL) {
++        return;
++    }
++    track->prev->next = track->next;
++    if (track->next) {
++        track->next->prev = track->prev;
++    }
++    track->next = track->prev = NULL;
++    event = track->events;
++    while (event) {
++        tmp = event;
++        free(event->file);
++        free(event->func);
++        free(event->op);
++        event = event->next;
++        free(tmp);
++    }
++    track->events = NULL;
++    free(track);
++}
++
++void glamo_tracker_print(struct glamo_tracker *tracker, FILE *file)
++{
++    struct glamo_track *track;
++    struct glamo_track_event *event;
++    void *tmp;
++
++    track = tracker->tracks.next;
++    while (track) {
++        event = track->events;
++        fprintf(file, "[0x%08X] :\n", track->key);
++        while (event) {
++            tmp = event;
++            fprintf(file, "  [0x%08X:%s](%s:%s:%d)\n",
++                    track->key, event->op,  event->file,
++                    event->func, event->line);
++            free(event->file);
++            free(event->func);
++            free(event->op);
++            event->file = NULL;
++            event->func = NULL;
++            event->op = NULL;
++            event = event->next;
++            free(tmp);
++        }
++        track->events = NULL;
++        tmp = track;
++        track = track->next;
++        free(tmp);
++    }
++}
+--- libdrm/glamo/glamo_track.h	1970-01-01 01:00:00.000000000 +0100
++++ libdrm-glamo/glamo/glamo_track.h	2010-06-11 15:54:45.209710943 +0200
+@@ -0,0 +1,64 @@
++/*
++ * Copyright © 2008 Jérôme Glisse
++ * All Rights Reserved.
++ *
++ * Permission is hereby granted, free of charge, to any person obtaining
++ * a copy of this software and associated documentation files (the
++ * "Software"), to deal in the Software without restriction, including
++ * without limitation the rights to use, copy, modify, merge, publish,
++ * distribute, sub license, and/or sell copies of the Software, and to
++ * permit persons to whom the Software is furnished to do so, subject to
++ * the following conditions:
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
++ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
++ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
++ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
++ * USE OR OTHER DEALINGS IN THE SOFTWARE.
++ *
++ * The above copyright notice and this permission notice (including the
++ * next paragraph) shall be included in all copies or substantial portions
++ * of the Software.
++ */
++/*
++ * Authors:
++ *      Jérôme Glisse <glisse@freedesktop.org>
++ */
++#ifndef GLAMO_TRACK_H
++#define GLAMO_TRACK_H
++
++struct glamo_track_event {
++    struct glamo_track_event   *next;
++    char                        *file;
++    char                        *func;
++    char                        *op;
++    unsigned                    line;
++};
++
++struct glamo_track {
++    struct glamo_track         *next;
++    struct glamo_track         *prev;
++    unsigned                    key;
++    struct glamo_track_event   *events;
++};
++
++struct glamo_tracker {
++    struct glamo_track         tracks;
++};
++
++void glamo_track_add_event(struct glamo_track *track,
++                            const char *file,
++                            const char *func,
++                            const char *op,
++                            unsigned line);
++struct glamo_track *glamo_tracker_add_track(struct glamo_tracker *tracker,
++                                              unsigned key);
++void glamo_tracker_remove_track(struct glamo_tracker *tracker,
++                                 struct glamo_track *track);
++void glamo_tracker_print(struct glamo_tracker *tracker,
++                          FILE *file);
++
++#endif
+--- libdrm/glamo/libdrm_glamo.pc.in	1970-01-01 01:00:00.000000000 +0100
++++ libdrm-glamo/glamo/libdrm_glamo.pc.in	2010-06-11 15:54:45.210710959 +0200
+@@ -0,0 +1,10 @@
++prefix=@prefix@
++exec_prefix=@exec_prefix@
++libdir=@libdir@
++includedir=@includedir@
++
++Name: libdrm_glamo
++Description: Userspace interface to kernel DRM services for Glamo
++Version: 1.0.1
++Libs: -L${libdir} -ldrm_glamo
++Cflags: -I${includedir} -I${includedir}/libdrm
+--- libdrm/include/drm/Makefile.am	2010-03-22 21:39:27.000000000 +0100
++++ libdrm-glamo/include/drm/Makefile.am	2010-06-11 15:54:45.210710959 +0200
+@@ -35,6 +35,7 @@
+ 	savage_drm.h \
+ 	sis_drm.h \
+ 	via_drm.h \
++	glamo_drm.h \
+ 	mach64_drm.h
+ 
+ 
+--- libdrm/include/drm/glamo_drm.h	1970-01-01 01:00:00.000000000 +0100
++++ libdrm-glamo/include/drm/glamo_drm.h	2010-06-11 15:54:45.211711125 +0200
+@@ -0,0 +1,153 @@
++/* glamo_drm.h -- Public header for the Glamo driver
++ *
++ * Copyright 2009 Thomas White
++ * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
++ * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
++ * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
++ * All rights reserved.
++ *
++ * Permission is hereby granted, free of charge, to any person obtaining a
++ * copy of this software and associated documentation files (the "Software"),
++ * to deal in the Software without restriction, including without limitation
++ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
++ * and/or sell copies of the Software, and to permit persons to whom the
++ * Software is furnished to do so, subject to the following conditions:
++ *
++ * The above copyright notice and this permission notice (including the next
++ * paragraph) shall be included in all copies or substantial portions of the
++ * Software.
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
++ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
++ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
++ * DEALINGS IN THE SOFTWARE.
++ *
++ * Authors:
++ *    Thomas White <taw@bitwiz.org.uk>
++ *    Kevin E. Martin <martin@valinux.com>
++ *    Gareth Hughes <gareth@valinux.com>
++ *    Keith Whitwell <keith@tungstengraphics.com>
++ */
++
++#ifndef __GLAMO_DRM_H__
++#define __GLAMO_DRM_H__
++
++#include "drm.h"
++
++#define GLAMO_GEM_DOMAIN_VRAM (0x1)
++
++/* Glamo specific ioctls */
++#define DRM_GLAMO_CMDBUF     0x01
++#define DRM_GLAMO_SWAP       0x02
++#define DRM_GLAMO_CMDBURST   0x03
++
++#define DRM_GLAMO_GEM_INFO     0x1c
++#define DRM_GLAMO_GEM_CREATE   0x1d
++#define DRM_GLAMO_GEM_MMAP     0x1e
++#define DRM_GLAMO_GEM_PIN      0x1f
++#define DRM_GLAMO_GEM_UNPIN    0x20
++#define DRM_GLAMO_GEM_PREAD    0x21
++#define DRM_GLAMO_GEM_PWRITE   0x22
++#define DRM_GLAMO_GEM_WAIT_RENDERING 0x24
++
++#define DRM_IOCTL_GLAMO_CMDBUF     DRM_IOW(DRM_COMMAND_BASE + DRM_GLAMO_CMDBUF, drm_glamo_cmd_buffer_t)
++#define DRM_IOCTL_GLAMO_SWAP       DRM_IO(DRM_COMMAND_BASE + DRM_GLAMO_SWAP)
++#define DRM_IOCTL_GLAMO_CMDBURST     DRM_IOW(DRM_COMMAND_BASE + DRM_GLAMO_CMDBURST, drm_glamo_cmd_burst_t)
++
++#define DRM_IOCTL_GLAMO_GEM_INFO   DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_INFO, struct drm_glamo_gem_info)
++#define DRM_IOCTL_GLAMO_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_CREATE, struct drm_glamo_gem_create)
++#define DRM_IOCTL_GLAMO_GEM_MMAP   DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_MMAP, struct drm_glamo_gem_mmap)
++#define DRM_IOCTL_GLAMO_GEM_PIN    DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_PIN, struct drm_glamo_gem_pin)
++#define DRM_IOCTL_GLAMO_GEM_UNPIN  DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_UNPIN, struct drm_glamo_gem_unpin)
++#define DRM_IOCTL_GLAMO_GEM_PREAD  DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_PREAD, struct drm_glamo_gem_pread)
++#define DRM_IOCTL_GLAMO_GEM_PWRITE DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_PWRITE, struct drm_glamo_gem_pwrite)
++#define DRM_IOCTL_GLAMO_GEM_WAIT_RENDERING DRM_IOW(DRM_COMMAND_BASE + DRM_GLAMO_GEM_WAIT_RENDERING, struct drm_glamo_gem_wait_rendering)
++
++
++/* Simple command submission - a list of 16-bit address-data pairs */
++typedef struct drm_glamo_cmd_buffer {
++	unsigned int bufsz;	/* Size of buffer, in bytes */
++	char *buf;		/* Buffer of stuff to go onto the ring buffer */
++	unsigned int *obj_pos;	/* Offsets (in bytes) at which to put objs */
++	uint32_t *objs;		/* List of buffer object (handles) to use */
++	unsigned int nobjs;	/* Number of objects referenced */
++	int nbox;
++	struct drm_clip_rect *boxes;
++} drm_glamo_cmd_buffer_t;
++
++
++/* Burst command submission - base address and data:
++ *  - Data can be 32-bit (more easily)
++ *  - Easier for the kernel to validate */
++typedef struct drm_glamo_cmd_burst {
++	uint16_t base;		/* Base address (command) */
++	int bufsz;		/* Size of data, in bytes */
++	uint16_t *data;		/* Pointer to data */
++	unsigned int *obj_pos;	/* Offsets (in bytes) at which to put objs */
++	uint32_t *objs;		/* List of buffer object (handles) to use */
++	unsigned int nobjs;	/* Number of objects referenced */
++} drm_glamo_cmd_burst_t;
++
++struct drm_glamo_gem_info {
++	uint64_t vram_start;
++	uint64_t vram_size;
++};
++
++struct drm_glamo_gem_create {
++	uint64_t size;
++	uint64_t alignment;
++	uint32_t handle;
++	uint32_t initial_domain; // to allow VRAM to be created
++	uint32_t no_backing_store;
++};
++
++struct drm_glamo_gem_mmap {
++	uint32_t handle;	/* Handle goes in... */
++	uint64_t offset;	/* ...offset comes out */
++};
++
++struct drm_glamo_gem_wait_rendering {
++	uint32_t handle;
++	int have_handle;
++};
++
++struct drm_glamo_gem_pin {
++	uint32_t handle;
++	uint32_t pin_domain;
++	uint64_t alignment;
++	uint64_t offset;
++};
++
++struct drm_glamo_gem_unpin {
++	uint32_t handle;
++	uint32_t pad;
++};
++
++struct drm_glamo_gem_pread {
++	/** Handle for the object being read. */
++	uint32_t handle;
++	uint32_t pad;
++	/** Offset into the object to read from */
++	uint64_t offset;
++	/** Length of data to read */
++	uint64_t size;
++	/** Pointer to write the data into. */
++	uint64_t data_ptr;	/* void *, but pointers are not 32/64 compatible */
++};
++
++struct drm_glamo_gem_pwrite {
++	/** Handle for the object being written to. */
++	uint32_t handle;
++	uint32_t pad;
++	/** Offset into the object to write to */
++	uint64_t offset;
++	/** Length of data to write */
++	uint64_t size;
++	/** Pointer to read the data from. */
++	uint64_t data_ptr;	/* void *, but pointers are not 32/64 compatible */
++};
++
++#endif
diff --git a/x11-libs/libdrm/libdrm-2.4.20.ebuild b/x11-libs/libdrm/libdrm-2.4.20.ebuild
new file mode 100644
index 0000000..01f6dce
--- /dev/null
+++ b/x11-libs/libdrm/libdrm-2.4.20.ebuild
@@ -0,0 +1,51 @@
+# Copyright 1999-2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/x11-libs/libdrm/libdrm-2.4.20.ebuild,v 1.3 2010/04/24 16:47:30 chithanh Exp $
+
+inherit autotools x-modular
+
+EGIT_REPO_URI="git://anongit.freedesktop.org/git/mesa/drm"
+
+DESCRIPTION="X.Org libdrm library"
+HOMEPAGE="http://dri.freedesktop.org/"
+if [[ ${PV} = 9999* ]]; then
+	SRC_URI=""
+else
+	SRC_URI="http://dri.freedesktop.org/${PN}/${P}.tar.bz2"
+fi
+
+KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~x86-fbsd"
+IUSE="kernel_linux video_cards_glamo"
+RESTRICT="test" # see bug #236845
+
+RDEPEND="dev-libs/libpthread-stubs"
+DEPEND="${RDEPEND}"
+
+src_unpack() {
+	unpack ${A}
+	cd "${S}"
+	if use video_cards_glamo ; then
+	    epatch "${FILESDIR}/${P}-glamo.patch"
+	    eautoreconf
+	fi
+}
+
+pkg_setup() {
+	# libdrm_intel fails to build on some arches if dev-libs/libatomic_ops is
+	# installed, bugs 297630, bug 316421 and bug 316541, and is presently only
+	# useful on amd64 and x86.
+	CONFIGURE_OPTIONS="--enable-udev
+			--enable-nouveau-experimental-api
+			--enable-vmwgfx-experimental-api
+			$(use_enable kernel_linux libkms)
+			$(use_enable video_cards_glamo glamo-experimental-api)
+			$(! use amd64 && ! use x86 && ! use x86-fbsd && echo "--disable-intel")"
+}
+
+pkg_postinst() {
+	x-modular_pkg_postinst
+
+	ewarn "libdrm's ABI may have changed without change in library name"
+	ewarn "Please rebuild media-libs/mesa, x11-base/xorg-server and"
+	ewarn "your video drivers in x11-drivers/*."
+}