Currently, if the PCI machinery fails, we return a NULL driver name.
In the past this has resulted in various workarounds.
To avoid those, fallback to loader_get_kernel_driver_name(). It's not
perfect, yet perfectly reasonable.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4084>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4084>
Move the message to the function which fetches the name.
While here use the same DEBUG/WARNING approach like in the PCI case. The
current method spam a tad much, plus isn't consistent.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4084>
Reoder the function a bit to make the code-flow more obvious and short.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4084>
Currently that's the hard-coded maximum in the kernel, even though the
libdrm API allows for more. Latter is done with extendability in mind.
Allocate 64 pointers^Wdevices on stack for now. Making for shorter and
ever-so-slightly faster code.
v2: Use single MAX_DRM_DEVICES #define (Eric)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com> (v1)
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4084>
This is definitely not the first time I've debugged why I'm getting swrast
on a device only to find out I'm not a member of the render node's group.
This does mean that you'll get a warning print even without EGL_LOG_LEVEL
set. This may be an issue if we expect people outside of the DRI node's
group to actually be using swrast instead of getting their permissions
fixed. Right now surfaceless throws a "libEGL warning: No hardware driver
found, falling back to software rendering" in that case anyway, so this is
just more informative.
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3703>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3703>
The list of AMD/ATI devices supported by radeon/r200/r300/r600 is
complete, so anything else must use radeonsi.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Per the valgrind output below, we were returning the pointer to freed
memory if none of the later conditional pointer assignments were
executed. This caused dEQP CI jobs to crash on certain runners,
presumably due to a double-free down the line.
Also, we were skipping to the out: label before the vendor_id & chip_id
variables used by it were initialized, resulting in broken
LIBGL_DEBUG=verbose output such as
libGL: pci id for fd 4: 51108f00:51108f00, driver radeonsi
Fixes: 5a545e355b "loader: always map the "amdgpu" kernel driver name to radeonsi (v2)"
==403== Invalid read of size 1
==403== at 0x4AFD576: surfaceless_probe_device (platform_surfaceless.c:316)
==403== by 0x4AFD915: dri2_initialize_surfaceless (platform_surfaceless.c:391)
==403== by 0x4AF5EEA: dri2_initialize (egl_dri2.c:984)
==403== by 0x4AF5EEA: dri2_initialize (egl_dri2.c:958)
==403== by 0x4AF1EEC: _eglMatchAndInitialize (egldriver.c:75)
==403== by 0x4AF1F3B: _eglMatchDriver (egldriver.c:96)
==403== by 0x4AE9367: eglInitialize (eglapi.c:617)
==403== by 0x1D99C9: tcu::surfaceless::EglRenderContext::EglRenderContext(glu::RenderConfig const&, tcu::CommandLine const&) [clone .constprop.57] (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x1DABB0: tcu::surfaceless::ContextFactory::createContext(glu::RenderConfig const&, tcu::CommandLine const&, glu::RenderContext const*) const (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x53EBD1: glu::createRenderContext(tcu::Platform&, tcu::CommandLine const&, glu::RenderConfig const&, glu::RenderContext const*) (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x53EFE9: glu::createDefaultRenderContext(tcu::Platform&, tcu::CommandLine const&, glu::ApiType) (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x1DE07A: deqp::gles2::Context::Context(tcu::TestContext&) (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x1DB5EF: deqp::gles2::TestPackage::init() (in /deqp/modules/gles2/deqp-gles2)
==403== Address 0x56bd340 is 0 bytes inside a block of size 4 free'd
==403== at 0x48369AB: free (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==403== by 0x4B01767: loader_get_driver_for_fd (loader.c:464)
==403== by 0x4AFD553: surfaceless_probe_device (platform_surfaceless.c:308)
==403== by 0x4AFD915: dri2_initialize_surfaceless (platform_surfaceless.c:391)
==403== by 0x4AF5EEA: dri2_initialize (egl_dri2.c:984)
==403== by 0x4AF5EEA: dri2_initialize (egl_dri2.c:958)
==403== by 0x4AF1EEC: _eglMatchAndInitialize (egldriver.c:75)
==403== by 0x4AF1F3B: _eglMatchDriver (egldriver.c:96)
==403== by 0x4AE9367: eglInitialize (eglapi.c:617)
==403== by 0x1D99C9: tcu::surfaceless::EglRenderContext::EglRenderContext(glu::RenderConfig const&, tcu::CommandLine const&) [clone .constprop.57] (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x1DABB0: tcu::surfaceless::ContextFactory::createContext(glu::RenderConfig const&, tcu::CommandLine const&, glu::RenderContext const*) const (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x53EBD1: glu::createRenderContext(tcu::Platform&, tcu::CommandLine const&, glu::RenderConfig const&, glu::RenderContext const*) (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x53EFE9: glu::createDefaultRenderContext(tcu::Platform&, tcu::CommandLine const&, glu::ApiType) (in /deqp/modules/gles2/deqp-gles2)
==403== Block was alloc'd at
==403== at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==403== by 0x4EE5E09: strndup (strndup.c:43)
==403== by 0x4B010B1: loader_get_kernel_driver_name (loader.c:101)
==403== by 0x4B016AF: loader_get_driver_for_fd (loader.c:462)
==403== by 0x4AFD553: surfaceless_probe_device (platform_surfaceless.c:308)
==403== by 0x4AFD915: dri2_initialize_surfaceless (platform_surfaceless.c:391)
==403== by 0x4AF5EEA: dri2_initialize (egl_dri2.c:984)
==403== by 0x4AF5EEA: dri2_initialize (egl_dri2.c:958)
==403== by 0x4AF1EEC: _eglMatchAndInitialize (egldriver.c:75)
==403== by 0x4AF1F3B: _eglMatchDriver (egldriver.c:96)
==403== by 0x4AE9367: eglInitialize (eglapi.c:617)
==403== by 0x1D99C9: tcu::surfaceless::EglRenderContext::EglRenderContext(glu::RenderConfig const&, tcu::CommandLine const&) [clone .constprop.57] (in /deqp/modules/gles2/deqp-gles2)
==403== by 0x1DABB0: tcu::surfaceless::ContextFactory::createContext(glu::RenderConfig const&, tcu::CommandLine const&, glu::RenderContext const*) const (in /deqp/modules/gles2/deqp-gles2)
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
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>
Some platforms lack O_CLOEXEC. The loader_open_device() handles those
appropriately, so use the helper.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
I copied the code from egl_dri2.c, but the functionality was equivalent
between all the loaders other than their particular environment variables.
v2: Drop the logging function equivalent to loader_default_logger()
(requested by Eric, Emil). Move the SCons workaround across. Drop
the now-unused driGetDriverExtensions() declaration that was lost in a
rebase.
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com> (v1)
Reviewed-by: Emil Velikov <emil.velikov@collabora.com> (v1)
I need other types from the header now, and "gl.h is big" is not a good
reason to duplicate definitions.
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
This helper is almost a 1:1 copy of tegra_open_render_node().
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
drirc implementation of MESA_LOADER_DRIVER_OVERRIDE which can be
used to override dri driver to load.
Usage:
override dri driver for device with spec kernel driver name:
<device kernel_driver="kernel_driver_name">
<option name="dri_driver" value="new_dri_driver" />
</device>
or
<device driver="loader" kernel_driver="kernel_driver_name">
<option name="dri_driver" value="new_dri_driver" />
</device>
v2:
add kernel_driver device attribute to specify kernel
driver name instead of reuse driver attribute
v3:
seperate loader_get_kernel_driver_name into another patch
seperate add kernel_driver attribute into another patch
Suggested-by: Michel Dänzer <michel@daenzer.net>
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>
[v4 Emil: add HAVE_LIBDRM guard around __driConfigOptionsLoader and
loader_get_dri_config_driver]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
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>
This function can be shared by the following kernel_driver
drirc patch.
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>
ARM SoCs usually have their DRM/KMS devices on the platform bus, so add
support for this bus in order to allow use of the DRI_PRIME environment
variable with those devices.
While at it, also support the host1x bus, which is effectively the same
but uses an additional layer in the bus hierarchy.
Note that it isn't enough to support the bus that has the rendering GPU
because the loader code will also try to construct an ID path tag for a
scanout-only device if it is the default that is being opened.
The ID path tag for a device can be obtained by running udevadm info on
the device node, as shown in this example on NVIDIA Tegra:
$ udevadm info /dev/dri/card0 | grep ID_PATH_TAG
E: ID_PATH_TAG=platform-50000000_host1x
The corresponding OF_FULLNAME property, from which the ID_PATH_TAG is
constructed, can be found in the sysfs "uevent" attribute for the card0
device's parent:
$ grep OF_FULLNAME /sys/devices/platform/50000000.host1x/drm/uevent
OF_FULLNAME=/host1x@50000000
Similarily, /dev/dri/card1 corresponds to the GPU:
$ udevadm info /dev/dri/card1 | grep ID_PATH_TAG
E: ID_PATH_TAG=platform-57000000_gpu
and:
$ grep OF_FULLNAME /sys/devices/platform/57000000.gpu/uevent
OF_FULLNAME=/gpu@57000000
Changes in v2:
- avoid confusing pre-increment in strdup()
- add examples of tags to commit message
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
My build was producing:
../src/loader/loader.c:121:67: warning: ‘%1u’ directive output may be truncated writing between 1 and 3 bytes into a region of size 2 [-Wformat-truncation=]
and we can avoid this careful calculation by just using asprintf (as we do
elsewhere in the file).
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
While at it, drop the duplicate return.
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emli.velikov@collabora.com>
Reduce code duplication and automatically benefit from OS-specific
fixes to libdrm (e.g. in FreeBSD ports).
API was introduced with 2.4.74 and we already require 2.4.75 globally.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103283
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Same as the previous commit, but this one was split out because it's
a bit more complicated: this field is given as a pointer to a function,
so the function had to be changed as well, and the function was use in
a bunch of places, which needed updating as well.
Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
By this allows us to fetch the device list/info w/o the revision field.
At the moment retrieving the latter wakes up the device.
Note: kernel patch to resolve that should be in 4.10.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Currently when running mesa on imx6 the following loader warnings
are seen:
# kmscube -D /dev/dri/card1
MESA-LOADER: device is not located on the PCI bus
MESA-LOADER: device is not located on the PCI bus
MESA-LOADER: device is not located on the PCI bus
Using display 0x1920948 with EGL version 1.4
As this is not an error message, change it to debug level in
order to have a cleaner log output.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Otherwise we would fail with "implicit declaration of function" geteuid
and getenv respectively.
To trigger (re)move the libdrm.pc file and use the following:
$ ./autogen.sh --disable-egl --disable-gbm --disable-dri \
--with-dri-drivers=swrast --with-gallium-drivers=swrast
$ make
Cc: Vinson Lee <vlee@freedesktop.org>
Fixes: 3f462050c ("loader: Add an environment variable to override driver name choice.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99701
v2: [Emil: handle stdlib.h add commit message]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
My vc4 simulator has been implemented so far by having an entrypoint
claiming to be i965, which was a bit gross. The simulator would be a lot
less special if we entered through the vc4 entrypoint like normal, so add
a loader environment variable to allow the i965 fd to probe as vc4.
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This makes it possible to 'use' the imx-drm driver. Remeber that it
is not possible to have sysmbol names in C/C++ with a '-' in it.
Changes since v1:
- move the fix to loader.c
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v1)
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Changes since v1:
- renamed function to loader_get_extensions_name
- moved function into loader
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
V2: [Emil Velikov]
- Use local define.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
With previous patches nearly all the original code (as seen in the
various loaders) is gone.
Update the copyright/license section to reflect that.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reminiscent from the pre-loader days, were we had multiple instances of
the loader logic in separate places and one could build a "GALLIUM_ONLY"
version.
Since that is no longer the case and the loaders (glx/egl/gbm) do not
(and should not) require to know any classic/gallium specific we can
drop the argument and the related code.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Effectively everyone with actual hardware and/or requesting the
"device_name" requires a working libdrm. Thus they could/should already
be using the (now only) codepath.
Apart from the code simplification, we can slim down our configure.ac
even further. But that will be done in separate patch(es).
Cc: Gary Wong <gtw@gnu.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
With this all the libudev related code is now gone.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Currently not everyone has libudev and with follow-up patches we'll
completely remove the divergent codepaths.
Use the libdrm drm device API to construct the required ID_PATH_TAG-like
string, to preserve the current functionality for libudev users and
allow others to benefit from it as well.
v2: Drop ranty comments, pick the correct device
v3: \n -> \0 in PCI_ID_PATH_TAG_LENGTH comment (Axel).
v4: Use snprintf (Nicolai)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Improves readability and allows us to do further cleanups a lot easier.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Currently mesa has three code paths in the loader - libudev, manual
sysfs and drm ioctl one.
Considering the issues we had with libudev - strip those down in favour
of the libdrm drm device API. The latter can be implemented in any way
depending on the platform and can be reused by others.
v2: Use correct message on drmGetDevice failure. (Nicolai)
Cc: Jonathan Gray <jsg@jsg.id.au>
Cc: Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
When trying to get a device name for an fd using sysfs, it would always fail
as it was expecting key/value pairs to be delimited by '\0', which is not the
case.
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Use dev_node_from_fd() with HAVE_LIBDRM to provide an implmentation
of loader_get_device_name_for_fd() for non-linux systems that
use libdrm but don't have udev or sysfs.
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Emil Velikov
Eric Anholt
Kenneth Graunke
Samuel Thibault
Michel Dänzer
Eric Engestrom
Jiang, Sonny
Lionel Landwerlin
nia
Bas Nieuwenhuizen
Christian Gmeiner
Qiang Yu
Thierry Reding
Eric Engestrom
Greg V
Nicolai Hähnle
Eric Engestrom
Fabio Estevam
Frank Binns
Matt Turner
Jonathan Gray