dev-libs/beignet: support x11-libs/libdrm-2.4.71

This backports the upstream patch which made it to Git earlier on today to
1.2.0. This allows Beignet to link against both stable libdrm-2.4.70 and
unstable libdrm-2.4.71; I haven't tested earlier versions so the ebuild now
requires >=2.4.70.

Package-Manager: portage-2.3.1

dev-libs/beignet/beignet-1.2.0-r1.ebuild

@@ -0,0 +1,101 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+PYTHON_COMPAT=( python2_7 )
+CMAKE_BUILD_TYPE="Release"
+
+inherit python-any-r1 cmake-multilib flag-o-matic toolchain-funcs
+
+DESCRIPTION="OpenCL implementation for Intel GPUs"
+HOMEPAGE="https://01.org/beignet"
+
+LICENSE="LGPL-2.1+"
+SLOT="0"
+
+if [[ "${PV}" == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="git://anongit.freedesktop.org/beignet"
+	KEYWORDS=""
+else
+	KEYWORDS="~amd64"
+	SRC_URI="https://01.org/sites/default/files/${P}-source.tar.gz"
+	S=${WORKDIR}/Beignet-${PV}-Source
+fi
+
+COMMON="${PYTHON_DEPS}
+	media-libs/mesa
+	sys-devel/clang
+	>=sys-devel/llvm-3.5
+	<sys-devel/llvm-3.9
+	>=x11-libs/libdrm-2.4.70[video_cards_intel]
+	x11-libs/libXext
+	x11-libs/libXfixes"
+RDEPEND="${COMMON}
+	app-eselect/eselect-opencl"
+DEPEND="${COMMON}
+	${PYTHON_DEPS}
+	virtual/pkgconfig"
+
+PATCHES=(
+	"${FILESDIR}"/no-debian-multiarch.patch
+	"${FILESDIR}"/${P}_no-hardcoded-cflags.patch
+	"${FILESDIR}"/llvm-terminfo.patch
+	"${FILESDIR}"/${P}-drm_intel_get_pooled_eu.patch
+)
+
+DOCS=(
+	docs/.
+)
+
+pkg_pretend() {
+	if [[ ${MERGE_TYPE} != "binary" ]]; then
+		if tc-is-gcc; then
+			if [[ $(gcc-major-version) -eq 4 ]] && [[ $(gcc-minor-version) -lt 6 ]]; then
+				eerror "Compilation with gcc older than 4.6 is not supported"
+				die "Too old gcc found."
+			fi
+		fi
+	fi
+}
+
+pkg_setup() {
+	python_setup
+}
+
+src_prepare() {
+	# See Bug #593968
+	append-flags -fPIC
+
+	cmake-utils_src_prepare
+	# We cannot run tests because they require permissions to access
+	# the hardware, and building them is very time-consuming.
+	cmake_comment_add_subdirectory utests
+}
+
+multilib_src_configure() {
+	VENDOR_DIR="/usr/$(get_libdir)/OpenCL/vendors/${PN}"
+
+	local mycmakeargs=(
+		-DCMAKE_INSTALL_PREFIX="${VENDOR_DIR}"
+	)
+
+	cmake-utils_src_configure
+}
+
+multilib_src_install() {
+	VENDOR_DIR="/usr/$(get_libdir)/OpenCL/vendors/${PN}"
+
+	cmake-utils_src_install
+
+	insinto /etc/OpenCL/vendors/
+	echo "${VENDOR_DIR}/lib/${PN}/libcl.so" > "${PN}-${ABI}.icd" || die "Failed to generate ICD file"
+	doins "${PN}-${ABI}.icd"
+
+	dosym "lib/${PN}/libcl.so" "${VENDOR_DIR}"/libOpenCL.so.1
+	dosym "lib/${PN}/libcl.so" "${VENDOR_DIR}"/libOpenCL.so
+	dosym "lib/${PN}/libcl.so" "${VENDOR_DIR}"/libcl.so.1
+	dosym "lib/${PN}/libcl.so" "${VENDOR_DIR}"/libcl.so
+}

dev-libs/beignet/files/beignet-1.2.0-drm_intel_get_pooled_eu.patch

@@ -0,0 +1,23 @@
+diff --git a/src/intel/intel_driver.c b/src/intel/intel_driver.c
+index 5f4afda..cf8f829 100644
+--- a/src/intel/intel_driver.c
++++ b/src/intel/intel_driver.c
+@@ -958,14 +958,14 @@ intel_update_device_info(cl_device_id device)
+ 
+ #ifdef HAS_POOLED_EU
+   /* BXT pooled eu, 3*6 to 2*9, like sub slice count is 2 */
+-  unsigned int has_pooled_eu = 0;
+-  if(!drm_intel_get_pooled_eu(driver->fd, &has_pooled_eu) && has_pooled_eu)
++  int has_pooled_eu;
++  if((has_pooled_eu = drm_intel_get_pooled_eu(driver->fd)) > 0)
+     device->sub_slice_count = 2;
+ 
+ #ifdef HAS_MIN_EU_IN_POOL
+-  unsigned int min_eu;
++  int min_eu;
+   /* for fused down 2x6 devices, beignet don't support. */
+-  if (has_pooled_eu && !drm_intel_get_min_eu_in_pool(driver->fd, &min_eu)) {
++  if (has_pooled_eu > 0 && (min_eu = drm_intel_get_min_eu_in_pool(driver->fd)) > 0) {
+     assert(min_eu == 9); //don't support fuse down device.
+   }
+ #endif //HAS_MIN_EU_IN_POOL