From 42cdaaf945df203364cbb5be5f856636f9764260 Mon Sep 17 00:00:00 2001 From: Bernd Kuhls Date: Sun, 17 Jul 2016 18:27:55 +0200 Subject: [PATCH] package/mesa3d: add support for Intel Vulkan driver The Vulkan intel driver depends on the i965 dri driver: https://cgit.freedesktop.org/mesa/mesa/tree/configure.ac?h=12.0#n1653 and a sha1 implementation: https://cgit.freedesktop.org/mesa/mesa/tree/configure.ac?h=12.0#n1656 The Vulkan driver needs linux/memfd.h https://cgit.freedesktop.org/mesa/mesa/tree/src/intel/vulkan/anv_allocator.c?h=12.0#n30 which is not available in kernel headers older than 3.18: https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/log/include/uapi/linux/memfd.h?id=refs/tags/v3.18.36 The Vulkan driver makes use of ifunc https://cgit.freedesktop.org/mesa/mesa/tree/src/intel/vulkan/anv_entrypoints_gen.py?h=12.0#n287 which is not available on uClibc: https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config.gcc;h=82cc9a9959b5ab57c0b8779e054b80cdb95f169b;hb=gcc-6-branch#l1485 https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=e6cdd6b1755033e8f416efaa4334d1294c0a43c6 The Vulkan driver makes use of static_assert https://cgit.freedesktop.org/mesa/mesa/tree/src/intel/vulkan/anv_private.h?h=12.0#n153 Compiling the Vulkan driver with uClibc and musl fails, therefore this driver is glibc-only. Although the configure script does not check for dri3 support if the Intel Vulkan driver is enabled it needs it nonetheless: https://cgit.freedesktop.org/mesa/mesa/tree/src/intel/vulkan/anv_wsi_x11.c?h=12.0#n682 Signed-off-by: Bernd Kuhls Signed-off-by: Thomas Petazzoni --- package/mesa3d/Config.in | 29 ++++++++++++++++++++++++++++- package/mesa3d/mesa3d.mk | 10 ++++++++++ 2 files changed, 38 insertions(+), 1 deletion(-) diff --git a/package/mesa3d/Config.in b/package/mesa3d/Config.in index 738ca7a7b1..bbab95373f 100644 --- a/package/mesa3d/Config.in +++ b/package/mesa3d/Config.in @@ -22,7 +22,7 @@ menuconfig BR2_PACKAGE_MESA3D if BR2_PACKAGE_MESA3D -# inform the .mk file of gallium or dri driver selection +# inform the .mk file of gallium, dri or vulkan driver selection config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER select BR2_PACKAGE_MESA3D_DRIVER bool @@ -33,6 +33,10 @@ config BR2_PACKAGE_MESA3D_DRI_DRIVER select BR2_PACKAGE_XPROTO_PRESENTPROTO if BR2_PACKAGE_XPROTO_DRI3PROTO bool +config BR2_PACKAGE_MESA3D_VULKAN_DRIVER + bool + select BR2_PACKAGE_MESA3D_DRIVER + config BR2_PACKAGE_MESA3D_DRIVER bool @@ -132,6 +136,29 @@ config BR2_PACKAGE_MESA3D_DRI_DRIVER_RADEON help Legacy Radeon driver for R100 series GPUs. +comment "Vulkan drivers" + +config BR2_PACKAGE_MESA3D_VULKAN_DRIVER_INTEL + bool "Vulkan Intel driver" + depends on BR2_i386 || BR2_x86_64 + depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18 # memfd.h + depends on BR2_TOOLCHAIN_USES_GLIBC # ifunc, static_assert + depends on BR2_PACKAGE_XORG7 # xproto_dri3proto + # We need a SHA1 implementation. If either openssl or + # libgcrypt are already part of the build, we'll use one of + # them, otherwise, use the small libsha1 library. + select BR2_PACKAGE_LIBSHA1 if (!BR2_PACKAGE_OPENSSL && !BR2_PACKAGE_LIBGCRYPT) + select BR2_PACKAGE_MESA3D_DRI_DRIVER_I965 + select BR2_PACKAGE_MESA3D_VULKAN_DRIVER + select BR2_PACKAGE_XPROTO_DRI3PROTO + help + Vulkan driver for Intel hardware from Ivy Bridge onward. + +comment "intel vulkan depends on X.org and needs a glibc toolchain w/ headers >= 3.18" + depends on BR2_i386 || BR2_x86_64 + depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18 || \ + !BR2_TOOLCHAIN_USES_GLIBC || !BR2_PACKAGE_XORG7 + comment "Off-screen Rendering" config BR2_PACKAGE_MESA3D_OSMESA diff --git a/package/mesa3d/mesa3d.mk b/package/mesa3d/mesa3d.mk index a5380a72a5..1aa82d860b 100644 --- a/package/mesa3d/mesa3d.mk +++ b/package/mesa3d/mesa3d.mk @@ -86,6 +86,8 @@ MESA3D_DRI_DRIVERS-$(BR2_PACKAGE_MESA3D_DRI_DRIVER_I915) += i915 MESA3D_DRI_DRIVERS-$(BR2_PACKAGE_MESA3D_DRI_DRIVER_I965) += i965 MESA3D_DRI_DRIVERS-$(BR2_PACKAGE_MESA3D_DRI_DRIVER_NOUVEAU) += nouveau MESA3D_DRI_DRIVERS-$(BR2_PACKAGE_MESA3D_DRI_DRIVER_RADEON) += radeon +# Vulkan Drivers +MESA3D_VULKAN_DRIVERS-$(BR2_PACKAGE_MESA3D_VULKAN_DRIVER_INTEL) += intel ifeq ($(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER),) MESA3D_CONF_OPTS += \ @@ -115,6 +117,14 @@ MESA3D_CONF_OPTS += \ --with-dri-drivers=$(subst $(space),$(comma),$(MESA3D_DRI_DRIVERS-y)) endif +ifeq ($(BR2_PACKAGE_MESA3D_VULKAN_DRIVER),) +MESA3D_CONF_OPTS += \ + --without-vulkan-drivers +else +MESA3D_CONF_OPTS += \ + --with-vulkan-drivers=$(subst $(space),$(comma),$(MESA3D_VULKAN_DRIVERS-y)) +endif + # APIs ifeq ($(BR2_PACKAGE_MESA3D_OSMESA),y)