In the next commit, we'll stop falling back to shared VM if private VM
creation fails.

This isn't expected to happen in practice, it would either require small
memory allocations to fail, or missing support in arm-smmu-qcom for
setting up per-process pgtable support (ie. missing patch during
bringup).

Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/743088/
Message-ID: <20260729155609.20190-15-robin.clark@oss.qualcomm.com>

A user that was perfmon_capable() could try to race setting SYSPROF
param on multiple threads to trigger a reference leak.

Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/743091/
Message-ID: <20260729155609.20190-5-robin.clark@oss.qualcomm.com>

Rename to ctxlock, and use cleanup guards to manage releasing the lock.
This will let us re-use it for other per-context read/write serial-
ization, such as VM creation.

Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/743080/
Message-ID: <20260729155609.20190-3-robin.clark@oss.qualcomm.com>

Now that the dynamic pwrup reglist has SEL reg values to restore
appended, so that SEL regs are restored on IFPC exit, we can stop
completely disabling IFPC while global counter sampling is active.

To accomplish this, we re-use sysprof_setup() with a force_on param
to inhibit IFPC specifically while the counter regs are being read,
while leaving IFPC enabled the rest of the time.

Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Reviewed-by: Anna Maniscalco <anna.maniscalco2000@gmail.com>
Reviewed-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/728219/
Message-ID: <20260526145137.160554-17-robin.clark@oss.qualcomm.com>

The upcoming PERFCNTR_CONFIG ioctl will allow for both global counter
collection, and per-context counter reservation for local (ie. within
a single GEM_SUBMIT ioctl) counter collection.

Any number of contexts can reserve the same counters, but we will need
to ensure that counters reserved for local counter collection do not
conflict with counters used for global counter collection.

So add tracking for per-context local counter reservations.

Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Anna Maniscalco <anna.maniscalco2000@gmail.com>
Reviewed-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/728211/
Message-ID: <20260526145137.160554-10-robin.clark@oss.qualcomm.com>

This was done entirely with mindless brute force, using

    git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>

Moving to IFPC state clears the 'Perfcounter Select' register setup
by the userspace. So, lets block the IFPC when sysprof is active by
using the perfcounter oob signal to the GMU.

Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673380/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>

This submitqueue type isn't tied to a hw ringbuffer, but instead
executes on the CPU for performing async VM_BIND ops.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Tested-by: Antonino Maniscalco <antomani103@gmail.com>
Reviewed-by: Antonino Maniscalco <antomani103@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/661517/

Most of the driver code doesn't need to reach in to msm specific fields,
so just use the drm_gpuvm/drm_gpuva types directly.  This should
hopefully improve commonality with other drivers and make the code
easier to understand.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Tested-by: Antonino Maniscalco <antomani103@gmail.com>
Reviewed-by: Antonino Maniscalco <antomani103@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/661483/