Avoid additional drm device open and close.
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Alistair Strachan <astrachan@google.com>
Cc: Marissa Wall <marissaw@google.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This reverts commit 56c21f877b.
There were issues pointed out during review that were not addressed.
Would love to have this re-land, once those are addressed.
Saw a couple of typos fixes in the patch DragonFlyBSD carries [1], so
I ran codespell (a spell checker for code) on the whole repo.
[1] https://github.com/DragonFlyBSD/DPorts/blob/master/graphics/libdrm/files/patch-xf86drm.c
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
This fixes a bug, which was introduced with commit ee798b98
"xf85drm: de-duplicate drmParse{Platform.Host1x}{Bus,Device}Info".
where accessing *compatible[i] with i>0 results in a segfault.
Signed-off-by: Andreas Baierl <ichgeh@imkreisrum.de>
Fixes: ee798b9847 "xf85drm: de-duplicate drmParse{Platform.Host1x}{Bus,Device}Info"
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
[Eric: add the same fix to the free() below]
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
For multiple GPUs which has the same BDF, but has different domain ID,
the drmOpenByBusid will return the wrong fd when startx.
The reproduce sequence as below:
1. Call drmOpenByBusid to open Card0, then will return the right fd0, and the
fd0 is master privilege;
2. Call drmOpenByBusid to open Card1. In function drmOpenByBusid, it will
open Card0 first, this time, the fd1 for opening Card0 is not master
privilege, and will call drmSetInterfaceVersion to identify the
domain ID feature, as the fd1 is not master privilege, then drmSetInterfaceVersion
will fail, and then won't compare domain ID, then return the wrong fd for Card1.
Solution:
First loop search the best match fd about drm 1.4.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Xserver has struct members named `bool`, which means the last commit
breaks its build with errors like this:
error: two or more data types in declaration specifiers
Bool bool;
^
Fix this by making it return a 0/1 integer, with the same semantic as
the boolean it was before.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=109587
Fixes: 17dfe3ac93 "xf86drm: Add drmIsMaster()"
Cc: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
We can't use drmSetMaster to query whether or not a drm fd is master
because it requires CAP_SYS_ADMIN, even if the fd *is* a master fd.
Pick DRM_IOCTL_MODE_ATTACHMODE as a long-deprecated ioctl that is
DRM_MASTER but not DRM_ROOT_ONLY as the probe by which we can detect
whether or not the fd is master.
This is useful for code that might get master by open()ing the drm device
while no other master exists, but can't call drmSetMaster itself because
it's not running as root or is in a container, where container-root isn't
real-root.
v2: Use the AUTH_MAGIC request rather than MODE_ATTACHMODE, as it's more
clearly related to master status.
v3: [Emil] Don't expose internals, check for -EACCES.
Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v2)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
The functions are virtually identical, fold them up.
v2: foo -> tmp_name (Eric)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Some devices can lack OF data or it may not be available in the uevent
file. Fallback to the MODALIAS data in those cases.
We strip any leading "MODALIAS=.*:" thus the resulting information is
compatible with existing code in Mesa.
v2: foo -> tmp_name
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Lucas Stach <l.stach@pengutronix.de> (v1)
It is a cleaner and less fragile way to get PCI IDs than the one
currently used by local DPorts patches.
Signed-off-by: François Tigeot <ftigeot@wolfpond.org>
For ARM systems with tinydrm displays attached to SPI, the bus name is
/spi but we have platform device info for the rest. Fixes
eglInitialize() failures on hx8357d since the EGL_EXT_device_drm
changes.
Acked-by: Eric Engestrom <eric.engestrom@intel.com>
To determine whether a device node is a drm device node or not, the code
currently compares the node's major number to the static drm major device
number.
This breaks the standalone vmwgfx driver on XWayland dri clients,
https://cgit.freedesktop.org/mesa/vmwgfx
and any future attempt to introduce dynamic device numbers for drm.
So instead of checking for the device major, instead check for the presence
of the /sys/dev/char/<major>:<minor>/device/drm directory.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Dave Airlie <airlied@redhat.com>
This was done with:
nm --dynamic --defined-only build/libdrm.so | \
grep " T " | \
grep -v _fini | grep -v _init | \
cut -d' ' -f3 > /tmp/a.txt
while read sym; do
read f func line _ <<<$(cscope -d -L -1 $sym)
if [ ! -z "$f" ]; then
sed -i "${line}s/^/drm_public /" $f
fi
done < /tmp/a.txt
Then the alignment of function arguments were manually fixed all over.
The idea here will be to switch the default visibility to hidden so we
don't export symbols we shouldn't.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
"real_path" was getting confusing when there are other *paths in the
same functions.
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Earlier commit reworked our sysfs handling to use realpath.
Sadly that backfired since the Firefox sandboxing mechanism rejects
that. Despite the files/folders being in the allowed list, of the
sandboxing mechanism.
Oddly enough, the Chromium sandboxing doesn't complain about any of
this.
Since there are no Firefox releases with the fix, add a temporary
solution which falls back to the original handling.
Sadly, this won't work for virgl.
v2: drop return type - function cannot return NULL (Eric)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107516
Fixes: a02900133b ("xf86drm: introduce a get_real_pci_path() helper")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
In drmGetDevice2 when no local device is found or when
drm_device_has_rdev filters out all devices, *device might be left
uninitialized causing drmGetDevice2 to not return error - since
it's only returned when *device == NULL.
Above leads to crash in the firefox in system with amdgpu.
With this change firefox displays:
libGL error: MESA-LOADER: failed to retrieve device information
libGL error: unable to load driver: amdgpu_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: amdgpu
libGL error: MESA-LOADER: failed to retrieve device information
libGL error: unable to load driver: amdgpu_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: amdgpu
and doesn't crash.
Bugzilla: https://bugs.freedesktop.org/107384
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Mariusz Ceier <mceier+mesa-dev@gmail.com>
The GPU almost exclusively lives on the PCI bus, so we expose it as a
normal PCI one.
This allows all existing drmDevice users to work without any changes.
One could wonder why a separate typeset is not introduced, alike say
host1x. Unlike host1x the PCI/platform distinction for virtio provides
no extra information. Plus if needed we can add the separate set at a
later stage.
Here are a few 'features' that virtio seems to be missing:
- provides extra information on top the plaform devices
- supports a range of GPU devices
- is considered hardware description (DT)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Introduce a helper which gets the real sysfs path for the given pci
device.
In other words, instead opening the /sys/dev/char/*/device symlink, we
opt for the actual /sys/devices/pci*/*/
It folds three (nearly identical) snprintf's and paves the way of adding
extra devices (see next patch) a piece of pie.
v2: use a caller (on stack) provided real_path (Eric)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Robert Foss <robert.foss@collabora.com> (v1)
Reviewed-by: Robert Foss <robert.foss@collabora.com> (v1)
Reviewed-by: Eric Engestrom <eric@engestrom.ch> (v1)
Currently we dynamically allocate 16 pointers and reallocate more as
needed.
Instead, allocate the maximum number (256) on stack - the number is
small enough and is unlikely to change in the foreseeable future.
This allows us to simplify the error handling and even shed a few bytes
off the final binary.
v2:
- add a define & description behind the magic 256
- report error to strerr and skip when over 256 device nodes
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Robert Foss <robert.foss@collabora.com> (v1)
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch> (v1)
Don't duplicate the nearly identical code across the two call sites.
It improves legibility and the diff stat seems nice.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Currently we match the opened drmDevice fd with each drmDevice we
process.
Move that after all the devices are processed and folded, via the
drm_device_has_rdev(). This makes the code easier to follow and allows
us to unify the massive process loop across drmGetDevice2 and
drmGetDevices2. That in itself is coming with a later commit.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Currently one can open() any /dev node. If it's unknown
drmParseSubsystemType() will return an error.
Track that and bail as needed.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
removed in commit bb45ce4e3a
Adding it back as it is still needed in the case where we don't find a
match.
Signed-off-by: Kevin Strasser <kevin.strasser@intel.com>
Fixes: bb45ce4e3a "libdrm: Use readdir instead of readdir_r to
avoid build warnings"$
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Building libdrm under AOSP, we see the following build warning:
external/libdrm/xf86drm.c:2861:12: warning: 'readdir_r' is deprecated: readdir_r is deprecated; use readdir instead [-Wdeprecated-declarations]
while (readdir_r(sysdir, pent, &ent) == 0 && ent != NULL) {
^
Building on Linux with glibc produces the same warning.
Thus, this patch replaces readdir_r with readdir.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102031
Cc: Robert Foss <robert.foss@collabora.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Stefan Schake <stschake@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
[Emil Velikov: remove unused variables, Eric]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This will prevent any more missing `#include "config.h"` bug, at the
cost of having to recompile some files that didn't need to be when
changing build options.
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Otherwise we get an EFAULT, at least on a 64-bit kernel.
Fixes: 2048a9e7 "drm: add drmSyncobjWait wrapper"
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
These provide a crtc-id based interface to get the current sequence
(frame) number and to queue an event to be delivered at a specific sequence.
v2: Remove FIRST_PIXEL_OUT flag. This has been removed from the
proposed kernel API
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Analogous to previous commit (and the rest of the codebase), simply
discard the device if we cannot parse it.
Fixes: f8484ccbd1 ("xf86drm: Add USB support")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
On ChromeOS devices, readdir() processes the directory in
the following order:
-NAME- -TYPE-
. n/a
.. n/a
vgem n/a
card1 DRM_BUS_PLATFORM
renderD129 DRM_BUS_PLATFORM
card0 DRM_BUS_PCI
renderD128 DRM_BUS_PCI
controlD64 DRM_BUS_PCI
In drmGetDevices2, after drmProcessPlatformDevice fails for
/dev/dri/card1, we don't process the remaining directory entries.
As such, Vulkan fails to initialize since Mesa uses drmGetDevices2.
To fix this, continue if drmProcessPlatformDevice fails.
Fixes: 7b1f37f474 ("xf86drm: Add platform and host1x bus support")
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
[Emil: correct the host1x platforms as well]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
These ioctls are now in drm next so add the first set of libdrm APIs.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drmCompareBusInfo was almost this already, but it wasn't exported, its
name didn't match its functionality, and while it almost looks like it
was usable for sorting due to memcmp it wouldn't work if you had
multiple bus types. I don't really want to think about defining a
sensible sort order for bus types, so let's at least make it less of a
trap for the caller.
Invert its boolean sense to be 'true if equal', rename it to describe
the types it actually operates on, and export.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velilkov@collabora.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
In error path of drmGetBusid() and drmGetReservedContextList(),
there are memory leaks for error path. So this removes them.
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Recent patches for USB, platform and host1x bus support introduced the
sysfs_uevent_get() function that provides a generic way of parsing the
sysfs uevent file that is associated with each device in Linux.
Open-coded variants of this still exist in other places, so make those
reuse the new function to remove some code duplication.
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
ARM SoCs usually have their DRM/KMS devices on the platform bus, so add
support for that to enable these devices to be used with the drmDevice
infrastructure.
NVIDIA Tegra SoCs have an additional level in the hierarchy and DRM/KMS
devices can also be on the host1x bus. This is mostly equivalent to the
platform bus.
v4:
- continue on error to process platform or host1x device
v3:
- guard Linux-specific sysfs parsing code with #ifdef __linux__
v2:
- be careful not to overflow the full name
- read compatible strings into device info
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Allow DRM/KMS devices hosted on USB to be detected by the drmDevice
infrastructure.
v4:
- continue on error to process USB devices
v3:
- guard Linux-specific sysfs parsing code with #ifdef __linux__
v2:
- make sysfs_uevent_get() more flexible using a format string
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Subsequent patches will add support for other bus types to drmDevice and
they will duplicate a lot of the code to allocate a drmDevice. Factor
out the common code so it can be reused.
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The string written to the buffer by read() is not null-terminated,
but currently drmParsePciBusInfo() places null character only at the end of the buffer, not at the end of the
string.
As a result, the string passed to sscanf() contains an uninitialized value.
This patch changes to places null character at the end of the string.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99045
Signed-off-by: Taro Yamada <archer_ame@yahoo.co.jp>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Chunming Zhou
Prabhanjan Kandula
Emil Velikov
Eric Engestrom
Andreas Baierl
Emily Deng
Christopher James Halse Rogers
Emil Velikov
François Tigeot
Eric Anholt
Thomas Hellstrom
Lucas De Marchi
Mariusz Ceier
Michel Dänzer
Kevin Strasser
John Stultz
Eric Engestrom
Bas Nieuwenhuizen
Keith Packard
Dave Airlie
Marek Olšák
Gurchetan Singh
coypu
Adam Jackson
Seung-Woo Kim
Thierry Reding
Thierry Reding
Taro Yamada