• Mesa 19.1.8

  Mesa 19.1.8 is now available.
  
  NOTE: It is anticipated that 19.1.8 will be the final release in the
  19.1 series. Users of 19.1 are encouraged to migrate to the 19.2 series
  in order to obtain future fixes.
  
  Apologies for the big delay in this release; there were several regressions that we
  were investigating, which prevented the pre-release to be on time.
  
  Subject: [ANNOUNCE] mesa 19.1.8
  To: mesa-announce at lists.freedesktop.org
  Cc: mesa-dev at lists.freedesktop.org
  
  Adam Jackson (1):
        docs: Update bug report URLs for the gitlab migration
  
  Alan Coopersmith (5):
        c99_compat.h: Don't try to use 'restrict' in C++ code
        util: Make Solaris implemention of p_atomic_add work with gcc
        util: Workaround lack of flock on Solaris
        meson: recognize "sunos" as the system name for Solaris
        intel/common: include unistd.h for ioctl() prototype on Solaris
  
  Andreas Gottschling (1):
        drisw: Fix shared memory leak on drawable resize
  
  Andres Gomez (3):
        docs: Add the maximum implemented Vulkan API version in 19.1 rel notes
        docs/features: Update VK_KHR_display_swapchain status
        egl: Remove the 565 pbuffer-only EGL config under X11.
  
  Andrii Simiklit (1):
        glsl: disallow incompatible matrices multiplication
  
  Arcady Goldmints-Orlov (1):
        anv: fix descriptor limits on gen8
  
  Bas Nieuwenhuizen (2):
        tu: Set up glsl types.
        radv: Add workaround for hang in The Surge 2.
  
  Danylo Piliaiev (1):
        st/nine: Ignore D3DSIO_RET if it is the last instruction in a shader
  
  Dylan Baker (5):
        meson: fix logic for generating .pc files with old glvnd
        meson: Try finding libxvmcw via pkg-config before using find_library
        meson: Link xvmc with libxv
        meson: gallium media state trackers require libdrm with x11
        meson: Only error building gallium video without libdrm when the platform is drm
  
  Eric Engestrom (4):
        gl: drop incorrect pkg-config file for glvnd
        meson: re-add incorrect pkg-config files with GLVND for backward compatibility
        util/anon_file: add missing #include
        util/anon_file: const string param
  
  Erik Faye-Lund (1):
        glsl: correct bitcast-helpers
  
  Greg V (1):
        util: add anon_file.h for all memfd/temp file usage
  
  Haihao Xiang (1):
        i965: support AYUV/XYUV for external import only
  
  Hal Gentz (1):
        gallium/osmesa: Fix the inability to set no context as current.
  
  Jason Ekstrand (2):
        nir/repair_ssa: Replace the unreachable check with the phi builder
        intel/fs: Fix fs_inst::flags_read for ANY/ALL predicates
  
  Juan A. Suarez Romero (12):
        docs: add sha256 checksums for 19.1.7
        cherry-ignore: add explicit 19.2 only nominations
        cherry-ignore: add explicit 19.3 only nominations
        Revert "Revert "intel/fs: Move the scalar-region conversion to the generator.""
        cherry-ignore: Revert "gallium: remove PIPE_CAP_TEXTURE_SHADOW_MAP"
        bin/get-pick-list.sh: sha1 commits can be smaller than 8 chars
        cherry-ignore: nir/opt_large_constants: Handle store writemasks
        cherry-ignore: util: added missing headers in anon-file
        cherry-ignore: radv: Fix condition for skipping the continue CS.
        cherry-ignore: Revert "radv: disable viewport clamping even if FS doesn't write Z"
        Update version to 19.1.8
        docs: add release notes for 19.1.8
  
  Ken Mays (1):
        haiku: fix Mesa build
  
  Kenneth Graunke (4):
        iris: Initialize ice->state.prim_mode to an invalid value
        intel: Increase Gen11 compute shader scratch IDs to 64.
        iris: Disable CCS_E for 32-bit floating point textures.
        iris: Fix iris_rebind_buffer() for VBOs with non-zero offsets.
  
  Lionel Landwerlin (5):
        anv: gem-stubs: return a valid fd got anv_gem_userptr()
        intel: use proper label for Comet Lake skus
        mesa: don't forget to clear _Layer field on texture unit
        intel: fix subslice computation from topology data
        intel/isl: Set null surface format to R32_UINT
  
  Marek Olšák (1):
        gallium/vl: don't set PIPE_HANDLE_USAGE_EXPLICIT_FLUSH
  
  Matt Turner (1):
        util: Drop preprocessor guards for glibc-2.12
  
  Michel Dänzer (1):
        radeonsi: fix VAAPI segfault due to various bugs
  
  Michel Zou (2):
        scons: add py3 support
        scons: For MinGW use -posix flag.
  
  Paulo Zanoni (1):
        intel/fs: fix SHADER_OPCODE_CLUSTER_BROADCAST for SIMD32
  
  Prodea Alexandru-Liviu (1):
        scons/MSYS2-MinGW-W64: Fix build options defaults
  
  Rhys Perry (2):
        radv: always emit a position export in gs copy shaders
        nir/opt_remove_phis: handle phis with no sources
  
  Samuel Iglesias Gonsálvez (1):
        intel/nir: do not apply the fsin and fcos trig workarounds for consts
  
  Stephen Barber (1):
        nouveau: add idep_nir_headers as dep for libnouveau
  
  Tapani Pälli (3):
        iris: close screen fd on iris_destroy_screen
        egl: check for NULL value like eglGetSyncAttribKHR does
        util: fix os_create_anonymous_file on android
  
  pal1000 (2):
        scons/windows: Support build with LLVM 9.
        scons: Fix MSYS2 Mingw-w64 build.
  
  git tag: mesa-19.1.8
  

• Mesa 19.1.8 Released To End Out The Series

  More than one month has passed since Mesa 19.1.7 compared to the usual bi-weekly release cadence, but on Monday following the closure of remaining blocker bugs, Mesa 19.1.8 was released that also ends out this release series.

  Mesa 19.1.8 is the last planned release in the 19.1 Q2 series with users now being encouraged to upgrade at least to the stable Mesa 19.2 while Mesa 19.3 should be out around early December.

• Linux 5.5 To Restore Power-Savings For Hybrid Laptops When Not Using The dGPU

  On recent kernels when using a laptop with hybrid graphics but not running with the discrete GPU graphics enabled, a regression meant the dGPU never got powered off... Fortunately, for Linux 5.5 -- and potentially to be back-ported after that -- is a change to restore that power-savings.

  A change enabling NVIDIA HDA controller support inadvertently left dGPUs powered up when not in use, i.e. where the dGPU is not bound to a driver. When the NVIDIA discrete graphics aren't bound to a driver, the power saving path wasn't being hit where the platform power management could disable power to the GPU.

• Intel Lands More Graphics Code For Linux 5.5 - Jasper, More Intel Xe Multi-GPU Prepping

  Intel's open-source developers kicked off a new week by sending in their latest vetted changes to DRM-Next ahead of next month's Linux 5.5 kernel cycle.

  They already have sent in a lot of new graphics driver code for Linux 5.5 particularly around Tiger Lake while this week's pull request contains more new hardware enablement. They also anticipate sending in another pull request next week to DRM-Next with any other lingering feature work they are hoping to get into Linux 5.5.

• Intel's Graphics Compiler For Their NEO Compute Stack Now Supports Jasper Lake

  The team maintaining the LLVM-based Intel Graphics Compiler as part of their "NEO" OpenCL/Compute Stack have rolled out v1.0.2714 that includes initial support for Jasper Lake among other improvements.

  Just in the past week we've begun seeing Linux graphics driver patches around "Jasper Lake" and that initial kernel-side support coming for Linux 5.5. Jasper Lake is the rumored 10nm successor to Gemini Lake for low-power SoCs but not to be confused with Elkhart Lake that is Tremont+Gen11 also for ultra-low-power environments based upon the limited information thus far.

• Open-Source C.A.S. Vulkan Layer - Similar to Radeon Image Sharpening But For Any GPU

  AMD's Radeon Image Sharpening feature is designed to improve image quality with minimal performance costs. However, it is only supported by Radeon Polaris / Vega / Navi graphics cards and only under Microsoft Windows 10. An independent open-source project has implemented contrast adaptive sharpening support for Vulkan that is similar to Radeon Image Sharpening but will work for any Vulkan-enabled GPU -- including NVIDIA GPUs.

• MSM+Freedreno Driver Stack Adding Support For The Adreno 510 GPU

  While the MSM+Freedreno open-source graphics driver stack already supports the Adreno 500 and 600 series, one of the GPUs not seeing support until now was the basic Adreno 510. Kernel patches are pending for A510 enablement while the Mesa support was already merged.

  The Adreno 510 is the graphics processor within the Snapdragon 650, 652, and 653 models and used in lower-end devices. With the kernel and Mesa patches, the Adreno 510 is now working on the likes of the Sony Xperia X and X Compact smartphones.

• AMD Lands Greater Direct State Access Support Within Mesa

  Landing this week in Mesa 19.3-devel were more functions being implemented around the big OpenGL EXT_direct_state_access extension.

  OpenGL's direct state access functions are intended to allow more OpenGL state to be accessed/updated directly aside form the selector commands. Using EXT_direct_state_access allows for various efficiency improvements.

For those wondering if -- or how much -- of a performance impact mitigations still make regarding Spectre for Intel's long-awaited 10nm+ Ice Lake processors, here is the rundown on the mitigation state and the performance impact.

One of the areas that Phoronix readers have requested testing on with the recent purchase of the Dell XPS 7390 with Core i7 1065G7 is regarding the mitigation state and performance. Ice Lake with its Sunny Cove microarchitecture -- similar to Cascade Lake -- is no longer affected by Meltdown, MDS, or L1TF / Foreshadow.

• Phoronix Test Suite 9.2 Milestone 1 Released With Updates For macOS Benchmarking

  The first development snapshot of Phoronix Test Suite 9.2-Hurdal is now available ahead of the stable release later this quarter.

  It's been just one month since the big Phoronix Test Suite 9.0 release with a new result viewer, graphing improvements, and other result viewing enhancements and lower-level improvements. With Phoronix Test Suite 9.2 as the Q4'2019 release will be more evolutionary improvements.

• libinput and tablet pad keys

  Upcoming in libinput 1.15 is a small feature to support Wacom tablets a tiny bit better. If you look at the higher-end devices in Wacom's range, e.g. the Cintiq 27QHD you'll notice that at the top right of the device are three hardware-buttons with icons. Those buttons are intended to open the config panel, the on-screen display or the virtual keyboard. They've been around for a few years and supported in the kernel for a few releases. But in userspace, they events from those keys were ignored, casted out in the wild before eventually running out of electrons and succumbing to misery. Well, that's all changing now with a new interface being added to libinput to forward those events.

  Step back a second and let's look at the tablet interfaces. We have one for tablet tools (styli) and one for tablet pads. In the latter, we have events for rings, strips and buttons. The latter are simply numerically ordered, so button 1 is simply button 1 with no special meaning. Anything more specific needs to be handled by the compositor/client side which is responsible for assigning e.g. keyboard shortcuts to those buttons.

• libinput and button scrolling locks

  For a few years now, libinput has provided button scrolling. Holding a designated button down and moving the device up/down or left/right creates the matching scroll events. We enable this behaviour by default on some devices (e.g. trackpoints) but it's available on mice and some other devices. Users can change the button that triggers it, e.g. assign it to the right button. There are of course a couple of special corner cases to make sure you can still click that button normally but as I said, all this has been available for quite some time now.

• NVIDIA have released the big new Linux Beta driver 440.26 today

  Today NVIDIA released the 440.26 Beta driver for Linux with a number of new features, enhancements and a few interesting bug fixes.

• NVIDIA 440.26 Beta Linux Driver Brings HDMI 2.1 VRR, VP9 VDPAU Decode + Much More

  NVIDIA today introduced their first beta driver in the 440 Linux branch and it's quite an exciting release!

  The NVIDIA 440.26 Linux beta driver is out this morning and it's bringing with it many new/improved features. There is now VP9 video decoding for VDPAU, HDMI 2.1 VRR for G-SYNC Compatible, and more.