BO's RSS is updated every time new pages are allocated and mapped for the
object, either in its entirety at creation time for non-heap buffers, or
else on demand for heap buffers at GPU page fault's IRQ handler.
Same calculations had to be done for imported PRIME objects, since backing
storage
The current implementation will try to pick the highest available
unit. This is rather unflexible, and allowing drivers to display BO size
statistics through fdinfo in units of their choice might be desirable.
The new argument to drm_show_memory_stats is to be interpreted as the
integer
This patch series adds fdinfo support to the Panfrost DRM driver. It will
display a series of key:value pairs under /proc/pid/fdinfo/fd for render
processes that open the Panfrost DRM file.
The pairs contain basic drm gpu engine and memory region information that
can either be cat by a privileged
A new DRM GEM object function is added so that drm_show_memory_stats can
provider more accurate memory usage numbers.
Ideally, in panfrost_gem_status, the BO's purgeable flag would be checked
after locking the driver's shrinker mutex, but drm_show_memory_stats takes
over the drm file's object
The drm-stats fdinfo tags made available to user space are drm-engine,
drm-cycles, drm-max-freq and drm-curfreq, one per job slot.
This deviates from standard practice in other DRM drivers, where a single
set of key:value pairs is provided for the whole render engine. However,
Panfrost has
Some BO's might be mapped onto physical memory chunkwise and on demand,
like Panfrost's tiler heap. In this case, even though the
drm_gem_shmem_object page array might already be allocated, only a very
small fraction of the BO is currently backed by system memory, but
drm_show_memory_stats will
These GPU registers will be used when programming the cycle counter, which
we need for providing accurate fdinfo drm-cycles values to user space.
Signed-off-by: Adrián Larumbe
---
drivers/gpu/drm/panfrost/panfrost_regs.h | 5 +
1 file changed, 5 insertions(+)
diff --git
Hi Adrián,
kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on linus/master v6.5-rc7 next-20230823]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest
From: Rob Clark
This consists of simply storing the most recent deadline, and adding an
ioctl to retrieve the deadline. This can be used in conjunction with
the SET_DEADLINE ioctl on a fence fd for testing. Ie. create various
sw_sync fences, merge them into a fence-array, set deadline on the
From: Rob Clark
The initial purpose is for igt tests, but this would also be useful for
compositors that wait until close to vblank deadline to make decisions
about which frame to show.
The igt tests can be found at:
From: Rob Clark
Add a new flag to let userspace provide a deadline as a hint for syncobj
and timeline waits. This gives a hint to the driver signaling the
backing fences about how soon userspace needs it to compete work, so it
can adjust GPU frequency accordingly. An immediate deadline can be
From: Rob Clark
This is a re-post of the remaining patches from:
https://patchwork.freedesktop.org/series/114490/
Part of the hold-up of the remaining uabi patches was compositor
support, but now an MR for kwin exists:
https://invent.kde.org/plasma/kwin/-/merge_requests/4358
The syncobj
On Tue, Aug 22, 2023 at 11:48 AM Rafael J. Wysocki wrote:
>
> On Tue, Aug 22, 2023 at 8:02 PM Rob Clark wrote:
> >
> > From: Rob Clark
> >
> > In the process of adding lockdep annotation for drm GPU scheduler's
> > job_run() to detect potential deadlock against shrinker/reclaim, I hit
> > this
The QMP mailbox expects to be notified of the ACD (Adaptive Clock
Distribution) state. Get a handle to the mailbox at probe time and
poke it at GMU resume.
Since we don't fully support ACD yet, hardcode the message to "val: 0"
(state = disabled).
Tested-by: Neil Armstrong # on SM8550-QRD
A740 builds upon the A730 IP, shuffling some values and registers
around. More differences will appear when things like BCL are
implemented.
adreno_is_a740_family is added in preparation for more A7xx GPUs,
the logic checks will be valid resulting in smaller diffs.
Tested-by: Neil Armstrong #
Provide the necessary alternations to mostly support state dumping on
A7xx. Newer GPUs will probably require more changes here. Crashdumper
and debugbus remain untested.
Tested-by: Neil Armstrong # on SM8550-QRD
Tested-by: Dmitry Baryshkov # sm8450
Signed-off-by: Konrad Dybcio
---
Some GPUs - particularly A7xx ones - are really really stubborn and
sometimes take a longer-than-expected time to finish unhalting GBIF.
Note that this is not caused by the request a few lines above.
Poll for the unhalt ack to make sure we're not trying to write bits to
an essentially dead GPU
A7xx GPUs are - from kernel's POV anyway - basically another generation
of A6xx. They build upon the A650/A660_family advancements, skipping some
writes (presumably more values are preset correctly on reset), adding
some new ones and changing others.
One notable difference is the introduction of
Add support for Adreno 730, also known as GEN7_0_x, found on SM8450.
Tested-by: Neil Armstrong # on SM8550-QRD
Tested-by: Dmitry Baryshkov # sm8450
Signed-off-by: Konrad Dybcio
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 126 -
Allow A7xx SKUs, such as the A730 GPU found on SM8450 and friends.
They use GMU for all things DVFS, just like most A6xx GPUs.
Reviewed-by: Krzysztof Kozlowski
Tested-by: Neil Armstrong # on SM8550-QRD
Tested-by: Dmitry Baryshkov # sm8450
Signed-off-by: Konrad Dybcio
---
Add some missing definitions required for A7 support.
This may be substituted with a mesa header sync.
Tested-by: Neil Armstrong # on SM8550-QRD
Tested-by: Dmitry Baryshkov # sm8450
Signed-off-by: Konrad Dybcio
---
drivers/gpu/drm/msm/adreno/a6xx.xml.h | 9 +
When booting the GMU, the QMP mailbox should be pinged about some tunables
(e.g. adaptive clock distribution state). To achieve that, a reference to
it is necessary. Allow it and require it with A730.
Tested-by: Neil Armstrong # on SM8550-QRD
Tested-by: Dmitry Baryshkov # sm8450
Acked-by:
This series attempts to introduce Adreno 700 support (with A730 and A740
found on SM8450 and SM8550 respectively), reusing much of the existing
A6xx code. This submission largely lays the groundwork for expansion and
more or less gives us feature parity (on the kernel side, that is) with
existing
The GMU on the A7xx series is pretty much the same as on the A6xx parts.
It's now "smarter", needs a bit less register writes and controls more
things (like inter-frame power collapse) mostly internally (instead of
us having to write to G[PM]U_[CG]X registers from APPS)
The only difference worth
24 matches
Mail list logo
