For mutiple GPU support, the devices on the system should be enumerated
to get necessary information about each device, and the drmGetDevices
interface is added for this. Currently only PCI devices are supported for
the enumeration.
Typical usage:
int count;
drmDevicePtr *foo;
count = drmGetDevices(NULL, 0);
foo = calloc(count, sizeof(drmDevicePtr));
count = drmGetDevices(foo, count);
/* find proper device, open correct device node, etc */
drmFreeDevices(foo, count);
free(foo);
v2: [Jammy Zhou]
- return a list of devices, rather than nodes
v3: [Jammy Zhou]
- fix the signed extension for PCI device info
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
For readdir_r(), the next directory entry is returned in caller-allocted
buffer (pointered by pent here).
https://bugs.freedesktop.org/show_bug.cgi?id=91704
Signed-off-by: Mathias Tillman <master.homer@gmail.com>
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Add defines for the device minor names and make use of them
in drmGetMinorName() so the correct paths will be used on OpenBSD.
v2: don't add new defines to xf86drm.h to keep them out of the API
as requested by Emil.
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
As far as I can tell no OpenBSD platform ever used 81
for a drm major. While the value was added to libdrm in 2003
or earlier drm didn't appear in OpenBSD till 2007.
Of the OpenBSD platforms that support drm amd64/macppc/sparc64
use a major of 87, i386 uses 88.
v2: rearrange ifdefs as suggested by Emil.
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Spotted by looking for similar "let's assume fd == 0 is invalid" bugs.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
This reverts commit fde4969176.
The commit adds an API that does not seem flexible enough to be used in
current open-source projects. Additionally it adds a hidden dependency
of libudev, which when used in mesa caused grief when combined with
Steam('s runtime).
Let's revert this for now and add a tweaked API later on that can be
used in mesa/xserver.
Cc: Frank Min <frank.min@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Jammy Zhou <Jammy.Zhou@amd.com>
Fix Valgrind errors because those memory was uninitialized.
https://bugs.freedesktop.org/show_bug.cgi?id=90194
Signed-off-by: Guillaume Desmottes <guillaume.desmottes@collabora.co.uk>
v2: Explicitly zero the whole struct using memclear.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
xf86drm.c:356:2: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
group = (serv_group >= 0) ? serv_group : DRM_DEV_GID;
^
v2: do 'int' cast to fix the warning
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Add an interface for enumerating PCI devices on
a system.
v3: switch to udev/sysfs for the enumeration
v4: fix warnings
Signed-off-by: Frank Min <frank.min@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
v2: Remove the handler function instead of commenting out
split debugmsg function removal to a separate patch
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Needed on Solaris for the definitions of major() & minor() used in
drmGetNodeTypeFromFd() and makedev() used in drmOpenMinor()
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Currently most places assume reliable primary(master) <> render node
mapping. Although this may work in some cases, it is not correct.
Add a couple of helpers that hide the details and provide the name of
the master or render device name, given an fd. The latter may belong to
either the master, control or render node device.
v2:
- Rename Device and Primary to Master (aka the /dev/dri/cardX device).
- Check for the file via readdir_r() rather than stat().
- Wrap the check into a single function.
- Return NULL for non-linux platforms.
v3:
- Don't segfault if name is NULL.
- Update function names, as suggested by Frank Binns.
v4:
- Update commit message to reflect the function name changes.
Cc: Frank Binns <frank.binns@imgtec.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Add a helper function that returns the type of device node from an fd.
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
v2: call drmOpenOnceWithType in drmOpenOnce, and drop unused param
for drmOpenOnceWithType
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
v2: Add drmGetMinorBase, and call drmOpenWithType in drmOpen
v3: Pass 'type' to drmOpenByBusid and drmOpenDevice in drmOpenByName
v4: Renumber node type definitions, and return -1 for unsupported type
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v3)
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
We really have to do this to avoid surprises when extending the ABI
later on. Especially when growing the structures.
A bit overkill to update all the old legacy ioctl wrappers, but can't
hurt really either.
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Well just core drm. All the other callers in there that still use
direct calls to ioctl have some custom retry logic already, so should
be good already.
All the other offenders (tests, freedreno/kgsl, ...) don't really
matter (e.g. kgsl is the blob library and so not a drm thing) or are
again special exceptions with their own retry loops.
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Ian Romanick <idr@freedesktop.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Add a new function, drmOpenRender, that can be used to open render nodes. This
can be used in the same way that drmOpenControl is used to open control nodes.
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Now that there are render nodes it doesn't seem appropriate for the type of
the card nodes to be DRM_NODE_RENDER. For this reason, rename this type to
DRM_NODE_PRIMARY as this name better represents the purpose of these nodes.
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
drmOpenByName() is a static function that is only called by drmOpen().
drmOpen() already checks drmAvailable(), so the check in
drmOpenByName() is redundant.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The debug message's format string doesn't contain any conversion
specifiers, therefore making the fd argument unused.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>
These functions all take a format string and either a list of variable
arguments or a va_list. Use the new DRM_PRINTFLIKE macro to tell the
compiler about it so that the arguments can be checked against the
format string.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>
If clock_gettime did fail, it would return -1 and set errno.
What we really want to strerror() is the errno.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
These are just basic ioctl wrappers around the prime ioctls,
along with the capability reporting.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This works in conjunction with newer kernels. If we succeed in requesting
interface 1.4, the we know the kernel provides proper domain numbers. If
not, ignore the domain number as it's bogus (except on Alpha).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Emil Velikov
Mathias Tillman
Jonathan Gray
Guillaume Desmottes
Jammy Zhou
frank
Connor Behan
Jan Vesely
Alan Coopersmith
Frank Binns
Daniel Vetter
Daniel Kurtz
Thierry Reding
Damien Lespiau
Dave Airlie
Jeremy Huddleston
Dave Airlie
Ben Skeggs
Adam Jackson
Benjamin Herrenschmidt
Kristian Høgsberg
Robert Noland