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path: root/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
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* gpu: nvgpu: support gk20a virtualizationAingara Paramakuru2015-03-18
| | | | | | | | | | | | | The nvgpu driver now supports using the Tegra graphics virtualization interfaces to support gk20a in a virtualized environment. Bug 1509608 Change-Id: I6ede15ee7bf0b0ad8a13e8eb5f557c3516ead676 Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com> Reviewed-on: http://git-master/r/440122 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: poweron host1x explicitlyDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | Currently gk20a gets reference of host1x via phandle in Device Tree. But runtime PM does not seem to be handling power dependencies too well in this case and hence some times host1x is off when we need it. To fix this, exlicitly power on host1x while powering gpu up. Do this via "busy" and "idle" callbacks from gk20a_platform Bug 1534272 Bug 200022536 Change-Id: Ia562ee19722cfc8edc5626a5a058ab8edfe3d206 Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
* gpu: nvgpu: fix race between do_idle() and unrailgate()Deepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | While we are executing do_idle() API, it is possible that unrailgate() gets invoked in midst of idling the GPU and this can result in failure of do_idle() To prevent simultaneous execution of these methods, add a mutex railgate_lock and acquire it during do_idle() and unrailgate() APIs Also, keep this lock held if do_idle() is successful. In success, lock will be released in do_unidle(), otherwise release this lock before returning Note that this lock should not be held in railgate() API since we do not want it to be blocked during do_idle() bug 1529160 Change-Id: I87114b5367eaa217376455a2699c0d21c451c889 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/434190 (cherry picked from commit 561dc8e0933ff2d72573292968b893a52f5f783a) Reviewed-on: http://git-master/r/435131 Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Sachin Nikam <snikam@nvidia.com>
* gpu: nvgpu: do not abort probe if secure page alloc failsDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | Do not abort GPU probe if secure page alloc fails. We can just note that this allocation failed (using bool secure_alloc_ready) and prevent further secure memory allocation if this flag is not set. Bug 1525465 Change-Id: Ie4eb6393951690174013d2de3db507876d7b657f Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/427730 GVS: Gerrit_Virtual_Submit Reviewed-by: Shridhar Rasal <srasal@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: make pm config as platform dataSeshendra Gadagottu2015-03-18
| | | | | | | | | | | | | | | | Make gpu power management feature configurations as platform data. Keep existing sttaus for gk20a and disable all power features for gm20b. Bug 1523728 Change-Id: Ife7786863f18e21b882ac77085c7abc7c84d4cfc Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/426369 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Supriya Sharatkumar <ssharatkumar@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: add APIs to allocate/free dummy secure bufferDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | Add APIs to allocate and free dummy secure buffer of size PAGE_SIZE. Also, fix small errors during secure memory alloc/free. Bug 1487804 Change-Id: If078116fb973e81bfcee054b900c09a313e389c6 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/421700 (cherry picked from commit 5391515dab27cc88b921cf81913085dea98197e0) Reviewed-on: http://git-master/r/419609 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: add is_railgated() callbackDeepak Nibade2015-03-18
| | | | | | | | | | | Add is_railgated() platform callback to check status of gk20a power rail Bug 1376916 Bug 1487804 Change-Id: Ia0d909210dc409ab684eb6f20528b81500aecd5c Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
* gpu: nvgpu: Separate gm20b configurationTerje Bergstrom2015-03-18
| | | | | | | | | | | Separate gm20b platform data from gk20a data. Change-Id: Ie90ebc9e06ba94dfe852dfe07c163cd00fd90a9c Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/396376 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Bo Yan <byan@nvidia.com>
* gpu: nvgpu: Register as subdomain of host1xTerje Bergstrom2015-03-18
| | | | | | | | | | | | | 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>
* gpu: nvgpu: Add NVIDIA GPU DriverArto Merilainen2015-03-18
This patch moves the NVIDIA GPU driver to a new location. Bug 1482562 Change-Id: I24293810b9d0f1504fd9be00135e21dad656ccb6 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/383722 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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