First step towards supporting a single logical ringbuffer mapping to
multiple physical cmd buffers, which will enable dynamically growing
ringbuffers.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Not actually needed. It just needs to ensure that there is a
corresponding entry in the submit's cmds table.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Since they get vmap'd on the kernel side, they are a bit more costly.
Don't let them mingle with the riffraff.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
If user has emit'd reloc's, and then resets or deletes the ring, we want
to drop the ref's that the ring holds to the bo's to avoid a leak.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
The normal bo cache uses some intermediate steps between power of two
jumps to reduce memory wastage. But for a ringbuffer bo cache, we do
not need this.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
gallium needs to know if the kernel is new enough to support explicit
fencing, dynamically grown ringbuffers, etc.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
With a new enough drm/msm, we can let the kernel know about buffers that
are in the bo cache, so the kernel can free them under memory pressure.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Split out interface to allocate from and release to bo-cache, and get
rid of direct usage of bucket level API from fd_bo/etc.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Eventually we'll want a separate bo-cache for ringbuffer bo's, since
ringbuffer bo's get vmap'd on the kernel side, it is preferrable to
re-use them as ringbuffers rather than something else. Plus should
help to add madvise support if it is a bit better decoupled from bo
allocation (next patch).
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Provide a way to insert a reference (ie. OUT_IB()) to a target ring,
executing all the cmds in the target ring from the start.
Sometimes the ringmarker stuff is just overkill. And it will won't
really work properly once we support multiple physical cmdstream buffers
per fd_ringbuffer. So in the future the old ringmarker related APIs
will be deprecated in a few releases.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
AOSP master now errors if LOCAL_SRC_FILES contains headers, so filter
out header files from the source lists.
Signed-off-by: Rob Herring <robh@kernel.org>
Make sure that this function is defined (even empty/dummy) when KGSL support is
disabled, since it's part of the driver i/f and it was reported to cause symbols
issues when building against musl libc implementation.
Reported-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
EGL_EXT_image_dma_buf_import specifies that the importer retains
ownership of the fd, rather then the importee.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
fixes the prime sharing race condition described by
"intel: Serialize drmPrimeFDToHandle with struct_mutex".
we inline fd_bo_from_handle() into fd_bo_from_dmabuf() and allow locking.
Signed-off-by: Varad Gautam <varadgautam@gmail.com>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
don't call drmIoctl() directly for prime bo's, use the wrappers instead.
v3: remove struct drm_prime_handle and split locking
Signed-off-by: Varad Gautam <varadgautam@gmail.com>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Importing a bo whose handle is still in the bo cache crashes during cleanup.
Remove bo from cache when importing.
Signed-off-by: Varad Gautam <varadgautam@gmail.com>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
User should only see these with LIBGL_DEBUG=verbose. But in case you
are hitting issues like "handle X at index Y already on submit list"
errors from the kernel, this gives some useful visibility for debug.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
It should be a less common case, but it is possible for a single bo to
be on multiple rings, for example when sharing a buffer across multiple
pipe_context's created from same pipe_screen.
So rather than completely fall over in this case, fallback to slow-path
of looping over all bo's in the ring's bo-table (but retain the fast-
path of constant-lookup for the first ring the buffer is on).
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Group the parts related to building out submit ioctl into their own
sub-struct. Split out from next commit since it is just boring churn.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
This is used by radeon and freedreno and will be used
by amdgpu. I looked at switching to libdrm_lists.h,
but it's pretty horrible. E.g., DRMLISTFOREACHENTRYSAFE.
v2: remove missed list.h from tests/radeon/Makefile.am
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Abeit quite unlikely to get hit by this bug here, let just fix it.
v2: Correct conditional (do not call ioctl(DRM_IOCTL_PRIME_HANDLE_TO_FD)
when we already have the fd).
v3: Fix kgsl_pipe.c, suggested by Thierry.
Cc: freedreno@lists.freedesktop.org
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Some compilers (like the Oracle Studio), require that the function
declaration must be annotated with the same visibility attribute as the
definition. As annotating functions with drm_public is no longer
required just remove the macro.
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Michel Dänzer <michel.daenzer@amd.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
With earlier commits we've annotated the private symbols, thus
we no longer require the -fvisibility=hidden CFLAGS.
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Michel Dänzer <michel.daenzer@amd.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
They are less and easier to track than the public ones. The macro
drm_public will be going away by the end of the series.
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
With earlier changes we've implicitly add the relevant directories
to the includes list, via LOCAL_EXPORT_C_INCLUDES_DIRS.
v2: Update the top Android.mk as well.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Each of the libdrm_${hw} modules pull libdrm for linking as such:
libdrm's LOCAL_EXPORT_C_INCLUDE_DIRS are added to the includes list.
The former of which is already set to ${top} and ${top}/include/drm.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
- Don't add ${hw}/${hw}, but ${hw} to the includes path. The former
does not exist.
- Set the variable for libkms.
Inspired by the work of from Chih-Wei from the Android-x86 project.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
v2: Fold libpciaccess and libdrm into a single local_shared_libraries
Acked-by: Jan Vesely <jan.vesely@rutgers.edu>
Signed-off-by: Chih-Wei Huang <cwhuang@linux.org.tw>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
libdrm_freedreno currently supports two backends, 'msm' for the upstream
drm/msm driver, and 'kgsl' which supports (to some extent), the android/
downstream kgsl driver plus a sort of drm shim nonsense to get flink
names.
However, kgsl support is strictly on a best-effort basis. Different
android devices with different versions of kgsl may have different
abi's. And the existing kgsl interface (at least the parts of it that
we use) is completely broken for 64bit. Lets disable it by default lest
anyone actually try to use it.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
We also need to check handle_table in the _from_handle() path and the
_from_dmabuf() (which goes through _from_handle()) to avoid duplicate
imports.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
4c2766b (drm_mmap/drm_unmap) brought this error for every .c file that
was not #including config.h:
In file included from private.h:4:0,
from abi16.c:29:
../libdrm.h: In function 'drm_munmap':
../libdrm.h:81:4: error: size of unnamed array is negative
Signed-off-by: Rob Clark <robdclark@gmail.com>
Autotools is already smart enough to pick the *.pc.in files but it
needs some help with the Android.mk ones.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Already declared in our public header freedreno_drmif.h
Cc: Rob Clark <robclark@freedesktop.org>
Cc: freedreno@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Rob Clark <robclark@freedesktop.org>
Will be used to consolidate the required sources lists as well as the
install-able headers. This is turn will help us to avoid the
duplication with the upcoming Android build support.
v2: Rename the headers variable to *_H_FILES.
v3: Rebase on top of symbol visibility patches.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Rob Clark <robclark@freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Don't even bother trying DRM_KGSL_GEM_CREATE_FD. It hasn't worked since
(afaict) 2.6.35 kernels. And in some cases seems to cause some
problems. Instead just allocate a minimum size dummy object (just for
purposes of having a handle) and then mmap the framebuffer as user-mem
(which is deprecated, but seems to still work.. and as far as I can tell
is the best option for now).
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Need to update timestamp on all ring's associated with a submit (ie.
both the binning pass and main ring). Also, make sure nr_reloc's
in particular gets cleared if the rb is reset.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
There seem to be some cases (I've noticed this switching resolution in
some games, for example) where the fd can get closed() before the device
and all it's bo's are destroyed. Which, if the drm device is opened
again and bo's are allocated with the same handles, results that when
the first pipe_screen/pipe_context is destroyed causes the first dev to
close handles for bo's allocated by the second device.
The easy solution to that is to add a mode where the fd_device creates
it's own private fd (a dup()).
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Allow IB to different ringbuffer in addition to just different part of
same ringbuffer. In particular, we need to add bo's to the parent (ie.
one passed to flush) bo table, since the bo table applies to all the
cmd buffers in submit ioctl.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Workloads which create many transient buffers cause significant CPU
overhead in buffer allocation, zeroing, cache maint, and mmap setup.
By caching and re-using existing buffers, the CPU overhead drops
significantly. See:
http://bloggingthemonkey.blogspot.com/2013/09/freedreno-update-moar-fps.html
A simple time based policy is used for purging the cache. Once the
kernel supports it, we could use madvise style API to handle memory
pressure scenarios a bit better.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Handles automake complains about lack of forward-compatibility, due to the
source files in the kgsl and msm backends/folders.
Cc: Rob Clark <robclark@freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Otherwise build will fail, as drm/drm.h is not available.
Cc: Rob Clark <robclark@freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Split out common code and backend. Current backend is for 'kgsl'
android driver, but a new backend will provide support for the
upstream msm drm/kms driver.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
When adding the name tracking, I missed removing from the name table
when the bo was deleted, leaving a dangling pointer.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Things are worse if we issueibcmds with bogus gpu ptrs, so it is better
to just make userspace crash when things go pear shaped.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Due to the evil userspace buffer tracking we have to do, and hacks for
creating GEM buffer from fbdev/scanout, "evil-twin" fd_bo objects are
problematic. So introduce hashtable tracking of bo's and dev's, to
avoid getting duplicate fd_bo ptrs for the same underlying gem object,
in particular when importing via flink name.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Super-cheezy way to synchronization between mesa and ddx.. the
SET_ACTIVE ioctl gives us a way to stash a 32b # w/ a GEM bo, and
GET_BUFINFO gives us a way to retrieve it. We use this to stash
the timestamp of the last ISSUEIBCMDS on the buffer.
To avoid an obscene amount of syscalls, we:
1) Only set the timestamp for buffers w/ an flink name, ie.
only buffers shared across processes. This is enough to
catch the DRI2 buffers.
2) Only set the timestamp for buffers submitted to the 3d ring
and only check the timestamps on buffers submitted to the
2d ring. This should be enough to handle synchronizing of
presentation blit. We could do synchronization in the other
direction too, but that would be problematic if we are using
the 3d ring from DDX, since client side wouldn't know this.
The waiting on timestamp happens before flush, and setting of
timestamp happens after flush. It is transparent to the user
of libdrm_freedreno as all the tracking of buffers happens via
_emit_reloc()..
Signed-off-by: Rob Clark <robclark@freedesktop.org>
The libdrm_freedreno helper layer for use by xf86-video-freedreno,
fdre (freedreno r/e library and tests for driving gpu), and eventual
gallium driver for the Adreno GPU. This uses the msm gpu driver
from QCOM's android kernel tree.
Note that current msm kernel driver is a bit strange. It provides a
DRM interface for GEM, which is basically sufficient to have DRI2
working. But it does not provide KMS. And interface to 2d and 3d
cores is via different other devices (/dev/kgsl-*). This is not
quite how I'd write a DRM driver, but at this stage it is useful for
xf86-video-freedreno and fdre (and eventual gallium driver) to be
able to work on existing kernel driver from QCOM, to allow to
capture cmdstream dumps from the binary blob drivers without having
to reboot. So libdrm_freedreno attempts to hide most of the crazy.
The intention is that when there is a proper kernel driver, it will
be mostly just changes in libdrm_freedreno to adapt the gallium
driver and xf86-video-freedreno (ignoring the fbdev->KMS changes).
So don't look at freedreno as an example of how to write a libdrm
module or a DRM driver.. it is just an attempt to paper over a non-
standard kernel driver architecture.
v1: original
v2: hold ref's to pending bo's (because qcom's kernel driver doesn't),
various bug fixes, add ringbuffer markers so we can emit IB's to
portion of ringbuffer (so that gallium driver can use a single
ringbuffer for both tile cmds and draw cmds.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Rob Clark
Rob Herring
Nicolas Dechesne
Eric Engestrom
Rob Clark
Emil Velikov
Varad Gautam
Alex Deucher
Chih-Wei Huang
Maarten Lankhorst