Commit graph

172 commits

Author SHA1 Message Date
Eric Anholt
974981c4e6 gallium/drm: Make the pipe loader handle the driconf merging.
We can pretty easily handle merging the driver's driconf with the common
driverconf right there, rather than pushing that to each driver.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6751>
2020-09-24 16:35:17 -07:00
Eric Anholt
87392385b5 gallium/drm: Define the DRM entrypoints in drm_helper.h
This cuts even more code duplication.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6751>
2020-09-24 16:35:17 -07:00
Pierre-Eric Pelloux-Prayer
265a3b9624 driconf: add option to reuse GL names
Fix apps expecting name recycling.
https://gitlab.freedesktop.org/mesa/mesa/-/issues/3144 is an example
of such issue, SPECviewperf13 has this problem too.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6600>
2020-09-10 09:09:34 +02:00
Bas Nieuwenhuizen
cf2eebdf4f radv,gallium: Add driconf option to reduce advertised VRAM size.
To help debugging games that actually do active memory budget
management.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6641>
2020-09-08 23:59:35 +00:00
Bas Nieuwenhuizen
a1d4721e21 driconf: Support selection by Vulkan applicationName.
This adds applicationName + version through like engineName.

Rationale: A game (World War Z) includes the store name in the
executable name, so has multiple executable names.

CC: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6120>
2020-08-18 20:31:07 +02:00
Marek Olšák
ca719c6e30 glsl,driconf: add allow_glsl_120_subset_in_110 for SPECviewperf13
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5459>
2020-06-23 09:25:24 +00:00
Eric Engestrom
04e8eaf4e8 util: rename xmlpool.h to driconf.h
To make it clearer what it is and does.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5440>
2020-06-22 21:50:12 +00:00
Eric Engestrom
2ef983dca6 driconf: drop now unused translation facility
Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5440>
2020-06-22 21:50:12 +00:00
Eric Engestrom
4a8085d67c replace all F_DUPFD_CLOEXEC with os_dupfd_cloexec()
All squashed into a single commit because it shouldn't have any
behaviour change, except that it might work now on platforms where it
was broken because F_DUPFD_CLOEXEC is not supported but FD_CLOEXEC is.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5369>
2020-06-18 02:09:56 +00:00
Dylan Baker
a8e2d79e02 meson: use gnu_symbol_visibility argument
This uses a meson builtin to handle -fvisibility=hidden. This is nice
because we don't need to track which languages are used, if C++ is
suddenly added meson just does the right thing.

Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4740>
2020-06-01 18:59:18 +00:00
Marek Olšák
d6287a94b6 gallium: rename 'state tracker' to 'frontend'
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4902>
2020-05-13 13:46:53 -04:00
Pierre-Eric Pelloux-Prayer
403eb507f5 driconf: add force_integer_tex_nearest option
And enable it for "GRID Autosport" and "DIRT: Showdown" games.

CC: 20.1 <mesa-stable@lists.freedesktop.org>
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/1258
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4647>
2020-05-05 09:40:29 +02:00
Marek Olšák
8c053e5fad mesa: allow out-of-order drawing to optimize immediate mode if it's safe
This increases performance by 11-13% in Viewperf11/Catia - first scene.

Set allow_draw_out_of_order=true to enable this.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4152>
2020-03-26 03:08:34 -04:00
Kenneth Graunke
9b577f2a88 driconf, glsl: Add a vs_position_always_invariant option
Many applications use multi-pass rendering and require their vertex
shader position to be computed the same way each time.  Optimizations
may consider, say, fusing a multiply-add based on global usage of an
expression in a shader.  But a second shader with the same expression
may have different code, causing that optimization to make the other
choice the second time around.

The correct solution is for applications to mark their VS outputs
'invariant', indicating they need multiple shaders to compute that
output in the same manner.  However, most applications fail to do so.

So, we add a new driconf option - vs_position_always_invariant - which
forces the gl_Position output in vertex shaders to be marked invariant.

Fixes: 7025dbe794 ("nir: Skip emitting no-op movs from the builder.")
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2019-11-27 18:48:04 +00:00
Samuel Pitoiset
8fc8e8e8be pipe-loader: check that the pointer to driconf_xml isn't NULL
This happens when mesa is built with only swrast. The default
driver being kmsro and the default driconf file being v3d,
it's NULL and then strdup crashes.

This fixes a crash with piglit spec/egl_mesa_query_driver/conformance.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2019-11-21 07:34:20 +01:00
Marek Olšák
e00791c552 st/mesa: fix Sanctuary and Tropics by disabling ARB_gpu_shader5 for them
They use the "sample" keyword as a variable name.

Cc: 19.2 19.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2019-11-11 19:23:37 -05:00
Eric Engestrom
0bd6fc0a84 pipe-loader: drop unnecessary xmlpool_options_h
idep_xmlconfig already covers that

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Dylan Baker <dylan@pnwbakers.com>
2019-10-31 15:29:06 +00:00
Dave Airlie
9fa7400564 zink: add dri loader
export MESA_LOADER_DRIVER_OVERRIDE=zink should now work without using
swrast paths

Acked-by: Jordan Justen <jordan.l.justen@intel.com>
2019-10-28 08:51:43 +00:00
Alyssa Rosenzweig
afb0d08cb0 pipe-loader: Default to kmsro if probe fails
A device supported by kmsro will not automatically probe kmsro since the
driver name will be panfrost/lima/v3d/..., not "kmsro". Since kmsro is a
bit of a catch-all for generic (mostly embedded) GPUs, add a fallback on
kmsro for the dynamic loader.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Karol Herbst <kherbst@redhat.com>
2019-10-26 13:17:42 +00:00
Dylan Baker
e3f5c3232c meson: fix pipe-loader compilation for windows
v2: - Add missing D to pound define
    - Simply define the variable rather than set it to 1 (mirrors
      android.mk not scons)

Acked-by: Kristian H. Kristensen <hoegsberg@google.com>
2019-10-10 16:33:04 -07:00
Lionel Landwerlin
04dc6074cf driconfig: add a new engine name/version parameter
Vulkan applications can register with the following structure :

typedef struct VkApplicationInfo {
    VkStructureType    sType;
    const void*        pNext;
    const char*        pApplicationName;
    uint32_t           applicationVersion;
    const char*        pEngineName;
    uint32_t           engineVersion;
    uint32_t           apiVersion;
} VkApplicationInfo;

This enables the Vulkan implementations to apply workarounds based off
matching this description.

Here we add a new parameter for matching the driconfig options with
the following :

    <device driver="anv">
        <application engine_name_match="MyOwnEngine.*" engine_versions="10:12,40:42">
            <option name="blaaah" value="true" />
        </application>
    </device>

v2: switch engine name match to use regexps

v3: Verify that the regexec returns REG_NOMATCH for match failure (Eric)

v4: Add missing bit that went to the following commit (Eric)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: 19.2 <mesa-stable@lists.freedesktop.org>
2019-09-15 15:37:02 +03:00
Kevin Strasser
5baff5dd3c gallium: Add buffer and configs handling or fp16 formats
Expose configs when allow_fp16_configs has been enabled and
DRI_LOADER_CAP_FP16 is set in the loader.

Also, make kms_swrast_dri respect format bpp, to allow for allocating
buffers wider than 32 bpp.

Make fp16 opt-in for gallium.

Signed-off-by: Kevin Strasser <kevin.strasser@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2019-08-21 18:36:57 +00:00
Timothy Arceri
dca119f12c mesa/gallium: add dric option to allow overriding GL vendor string
Will be used in the following patch.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93551
2019-08-07 10:12:49 +10:00
Eric Engestrom
9a07606b84 meson: replace last uses of libxmlconfig with idep_xmlconfig
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
Tested-by: Vinson Lee <vlee@freedesktop.org>
2019-08-03 00:08:37 +00:00
Eric Engestrom
745bae40ad gallium/aux: replace MAYBE_UNUSED with UNUSED
MAYBE_UNUSED is going away, so let's replace legitimate uses of it with
UNUSED, which the former aliased to so far anyway.

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-31 09:41:05 +01:00
Jeremy Newton
666ea30017 pipe-loader: use radeonsi for MM if amdgpu dri is used
The amdgpu dri is used for the closed source AMD driver. Since this driver
does not implement multimedia, we fall back to radeonsi in mesa to do
multimedia. This corrects the dri driver name for when it is set to amdgpu.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> (v1)
Signed-off-by: Jeremy Newton <Jeremy.Newton@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
2019-07-19 19:59:02 -04:00
Eric Engestrom
dffeaa55dd util: use standard name for snprintf()
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-07-19 22:39:38 +01:00
Eric Engestrom
09a8a39940 util: use standard name for strchrnul()
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-07-19 22:39:38 +01:00
Gert Wollny
30eb1fdc51 gallium/virgl: Add code path for virgl to read driconf
This works only for the drm variant of virgl and not for the vtest
variant.

v2: Rebase, replace the configuration query function by a pointer to
    the configuration data.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com> (v1)
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
2019-06-20 08:50:38 +02:00
Eric Anholt
60a64f028d v3d: Use driconf to expose non-MSAA texture limits for Xorg.
The V3D 4.2 HW has a limit to MSAA texture sizes of 4096.  With non-MSAA,
we can go up to 7680 (actually probably 8138, but that hasn't been
validated by the HW team).  Exposing 7680 in X11 will allow dual 4k displays.
2019-05-13 12:03:11 -07:00
Marek Olšák
d8b296d3ad gallium: replace drm_driver_descriptor::configuration with driconf_xml
PIPE_CAPs are better.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2019-04-23 21:20:26 -04:00
Kenneth Graunke
faa52e328e iris: Add mechanism for iris-specific driconf options
Based on Nicolai's 0f8c5de869.

Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2019-04-22 09:35:36 -07:00
Dylan Baker
95aefc94a9 Delete autotools
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Matt Turner <mattst88@gmail.com>
2019-04-15 13:44:29 -07:00
Jan Vesely
6ec9733b9f gallium/aux: Report error if loading of a pipe driver fails.
Skip over non-existent files.
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2019-04-10 22:17:09 -04:00
Qiang Yu
92d7ca4b1c gallium: add lima driver
v2:
- use renamed util_dynarray_grow_cap
- use DEBUG_GET_ONCE_FLAGS_OPTION for debug flags
- remove DRM_FORMAT_MOD_ARM_AGTB_MODE0 usage
- compute min/max index in driver

v3:
- fix plbu framebuffer state calculation
- fix color_16pc assemble
- use nir_lower_all_source_mods for lowering neg/abs/sat
- use float arrary for static GPU data
- add disassemble comment for static shader code
- use drm_find_modifier

v4:
- use lima_nir_lower_uniform_to_scalar

v5:
- remove nir_opt_global_to_local when rebase

Cc: Rob Clark <robdclark@gmail.com>
Cc: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Andreas Baierl <ichgeh@imkreisrum.de>
Signed-off-by: Arno Messiaen <arnomessiaen@gmail.com>
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: marmeladema <xademax@gmail.com>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rohan Garg <rohan@garg.io>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
2019-04-11 09:57:53 +08:00
Kenneth Graunke
2dce0e94a3 iris: Initial commit of a new 'iris' driver for Intel Gen8+ GPUs.
This commit introduces a new Gallium driver for Intel Gen8+ GPUs,
named 'iris_dri.so' after the hardware.

Developed by:
- Kenneth Graunke (overall driver)
- Dave Airlie (shaders, conditional render, overflow query, Gen8 port)
- Chris Wilson (fencing, pinned memory, ...)
- Jordan Justen (compute shaders)
- Jason Ekstrand (image load store)
- Caio Marcelo de Oliveira Filho (tessellation control passthrough)
- Rafael Antognolli (auxiliary buffer fixes)
- The rest of the i965 contributors and the Mesa community
2019-02-21 10:26:04 -08:00
Alyssa Rosenzweig
61d3ae6e0b panfrost: Initial stub for Panfrost driver
This patch adds an initial stub for the Gallium driver, containing
simple screen functions and the majority of the driver headers but no
actual functionality. It further adds the winsys glue for linking in
this stub driver via kmsro on Rockchip/Amlogic boards.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
2019-02-05 01:19:30 +00:00
Rob Herring
41a0acd6a1 Switch imx to kmsro and remove the imx winsys
The kmsro winsys is equivalent to the imx winsys, so we can switch
to it and remove the imx one.

Signed-off-by: Rob Herring <robh@kernel.org>
2019-01-28 11:50:08 -06:00
Rob Herring
511e7b6f61 pipe-loader: Fallback to kmsro driver when no matching driver name found
If we can't find a driver matching by name, then use the kmsro driver.
This removes the need for needing a driver descriptor for every possible
KMS driver.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-01-28 09:35:45 -08:00
Eric Anholt
ed65aeec78 pl111: Rename the pl111 driver to "kmsro".
The vc4 driver can do prime sharing to many different KMS-only devices,
such as the various tinydrm drivers for SPI-attached displays.  Rename the
driver away from "pl111" to represent what it will actually support:
various sorts of KMS displays with the renderonly layer used to attach a
GPU.

Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
2019-01-28 09:35:45 -08:00
Michal Srb
c0ac038c97 gallium: Constify drisw_loader_funcs struct
The content is not expected to change.

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Michal Srb <msrb@suse.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-12-05 13:16:09 +00:00
Rob Herring
2bb05d70af android: Build kms_swrast for the Android platform
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-10-22 13:08:17 +01:00
Emil Velikov
7419b22413 pipe-loader: add a dup() in pipe_loader_sw_probe_kms
The pipe_loader_release API closes the fd given, even if the pipe-loader
should _not_ take ownership of it.

With earlier commit we fixed pipe_loader_drm_probe_fd, and now with
cover the final piece.

Note that unlike the DRM case, here the caller _did_ forget to dup
before using it ... most likely leading to all sorts of fun.

Don't forget the close in the error path. Seems like the things are a
bit leaky/asymmetrical with the semi-recent config work. But we can shave
that yak another day ;-)

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
2018-10-03 13:38:05 +01:00
Emil Velikov
6ccc435e7a pipe-loader: move dup(fd) within pipe_loader_drm_probe_fd
Currently pipe_loader_drm_probe_fd takes ownership of the fd given.
To match that, pipe_loader_release closes it.

Yet we have many instances which do not want the change of ownership,
and thus duplicate the fd before passing it to the pipe-loader.

Move the dup() within pipe-loader, explicitly document that and document
all the cases through the codebase.

A trivial git grep -2 pipe_loader_release makes things as obvious as it
gets ;-)

Cc: Leo Liu <leo.liu@amd.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Axel Davy <davyaxel0@gmail.com>
Cc: Patrick Rudolph <siro@das-labor.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Axel Davy <davyaxel0@gmail.com> (for nine)
2018-10-03 13:38:05 +01:00
Dylan Baker
5dcb77e491 meson: Don't compile pipe loader with dri support when not using dri
Corrects building glx as gallium-xlib without any dri targets.

v2: - fix ugly formatting

Fixes: 66c94b9313
       ("meson: build gallium winsys for dri, null, and wrapper")

Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-09-21 10:03:15 -07:00
Timothy Arceri
64ec50d52f mesa/st: add force_compat_profile option to driconfig
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-09-18 19:34:54 +10:00
Timothy Arceri
9c47c39687 st/mesa, gallium: add a workaround for No Mans Sky
The spec seems clear this is not allowed but the Nvidia binary
forces apps to add layout qualifiers so this works around the
issue for No Mans Sky until the CTS can be sorted out.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-08-30 09:54:40 +10:00
Timothy Arceri
02062ab1e1 mesa: remove unused dri config option disable_shader_bit_encoding
This was added as a workaround for Heaven 3.0 but was later removed
by 5ead448719 to allow Heaven 4.0 to work correctly.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-08-21 09:19:02 +10:00
Qiang Yu
3bbe180b98 xmlconfig: add kernel_driver device attribute
This attribute can be used by loader to apply different
option to device use specific kernel driver.

Signed-off-by: Qiang Yu <Qiang.Yu@amd.com>
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-08-17 17:16:32 +01:00
Timothy Arceri
725b1a406d mesa/util: add allow_glsl_relaxed_es driconfig override
This relaxes a number of ES shader restrictions allowing shaders
to follow more desktop GLSL like rules.

This initial implementation relaxes the following:

 - allows linking ES shaders with desktop shaders
 - allows mismatching precision qualifiers
 - always enables standard derivative builtins

These relaxations allow Google Earth VR shaders to compile.

Reviewed-by: Dave Airlie <airlied@redhat.com>
2018-06-19 12:09:56 +10:00