This adds new IOCTL that provides information for the userspace for
GPU characterization. Specifically, the following items are provided:
GPU arch/impl/rev, number of GPCs, L2 cache size, on-board video
memory size, num of tpc:s per gpc, and bus type. The primary user of
the new IOCTL will be rmapi_tegra.
Bug 1392902
Change-Id: Ia7c25c83c8a07821ec60be3edd018c6e0894df0f
Reviewed-on: http://git-master/r/346379
(cherry picked from commit 0b9ceca5a06d07cc8d281a92b76ebef8d4da0c92)
Reviewed-on: http://git-master/r/350658
Reviewed-by: Sami Kiminki <skiminki@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Sami Kiminki <skiminki@nvidia.com>
This far the scaling has been disabled only when we suspend the
system and therefore we unnecessarily keep gpu workers running even
if the gpu itself would be railgated. This is not proper behaviour
and it causes a race in suspend sequence.
This patch reorders scaling disable to happen always when we turn off
the GPU.
Bug 200004860
Change-Id: Ief0bfd89378d5a7ced26c3ef29094dd5c378b01a
Signed-off-by: Santosh Katvate <skatvate@nvidia.com>
Reviewed-on: http://git-master/r/410443
(cherry picked from commit bcae65bea24be2a1e0abe42522d99ba70c94cbe2)
Reviewed-on: http://git-master/r/413249
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
In some cases the gpu has still work pending while the device is
being suspended. This patch forces pm runtime to be disabled for
the device to avoid powering up the gpu unnecessarily.
Bug 1515437
Change-Id: I4b57d72eb34e794f0457d7a074d26c9d096a13b3
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/411968
Reviewed-by: Riham Haidar <rhaidar@nvidia.com>
Tested-by: Riham Haidar <rhaidar@nvidia.com>
Add gk20a as a sub power domain of host1x. This enforces keeping
host1x on when using gk20a.
Bug 200003112
Change-Id: I08db595bc7b819d86d33fb98af0d8fb4de369463
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/407543
Reviewed-by: Riham Haidar <rhaidar@nvidia.com>
Tested-by: Riham Haidar <rhaidar@nvidia.com>
Request irq at probe instead of at poweron. This allows investigating
interrupt numbers across rail gating cycles.
Change-Id: I6db4b3f1d865c6fbbd9d6a96c3df89617e169891
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/374859
Interrupts may be needed before we have actually silenced all
channels. Few possible scenarios include channel recovery during
teardown and sw method before the channels have been suspended.
This patch modifies the teardown path so that we disable interrupts
after the channels have been suspended.
Change-Id: Ifc36dbb74b1d36bd88d1220fa50a53c4072df4d8
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/394599
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Result of top_fs_status_r() is always constant. Do not dump it
anymore.
Change-Id: Ie1cfe872d70b2c3c8a7cef4df3870dacae8f8793
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/395208
Ensure devfreq is disabled before shutting down gk20a, to prevent
possible races with reading of gpu load, and the shutdown of gpu itself.
Bug 1492913
Change-Id: I016fdba9515120fc6cf3e771f60c61b9bf2027cb
Signed-off-by: Prashant Malani <pmalani@nvidia.com>
Reviewed-on: http://git-master/r/394296
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Free IRQs before the various subunits are suspended. This is to prevent
potential races between the IRQ thread and the suspend routine.
Bug 1437749
Change-Id: Iffef918feecae0b256be96efd02b01b2677c225d
Signed-off-by: Prashant Malani <pmalani@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
This patch adds a field to the gpu capability ioctl to allow
requesting the maximum VA a single PDE entry can hold.
Bug 1456570
Change-Id: I5cf29c8816fa6ea396c36419e6821c27a805b8af
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
