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path: root/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
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* gpu: nvgpu: fix compilation issues with PM disableSeshendra Gadagottu2015-03-18
| | | | | | | | | | | Fix gpu driver compilation issues with power mangement and runtime power management disable. Change-Id: I8e1873871d6f184013b2142dd0cbc32c67774177 Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/417925 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: sysfs to put gpu into idleDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | - Add a sysfs "force_idle" to forcibly idle the GPU - read on this sysfs will return the current status 0 : not in idle (running) 1 : in forced idle state "echo 1 > force_idle" will force the gpu into idle "echo 0 > force_idle" will cause the gpu to resume Bug 1376916 Bug 1487804 Change-Id: I48dfd52e0d14561220bc4baea0776d1bdfaa7ea5 Signed-off-by: Deepak Nibade <dnibade@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/407006 (cherry picked from commit 009812b3e510518740e9c7e89b8b8b80439fe26a) Reviewed-on: http://git-master/r/408013 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* Revert "gpu: nvgpu: Keep host1x on when GPU on"Matt Pedro2015-03-18
| | | | | | | | | | | This reverts commit 20d48a759b032116e3092e1df76518065da59879. Change-Id: I93718a314b70ee9284a83ca69964883e670ad78d Signed-off-by: Matt Pedro <mapedro@nvidia.com> Reviewed-on: http://git-master/r/407969 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Create sysfs symlinksArto Merilainen2015-03-18
| | | | | | | | | | | | | | | gk20a is going to be moved under platform bus, however, the sysfs interface should remain stable over the transition period. This patch adds a symlink to keep current interfaces stable. Bug 1311528 Bug 1434573 Change-Id: I951000f4b25285ff96e93eb726342d5b76cc84f1 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/396926 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Create load sysfs node alwaysArto Merilainen2015-03-18
| | | | | | | | | | | | | | | Currently creation of the load sysfs node is bound to devfreq profile initialisation, however, this information is useful even if the scaling is not enabled. This patch modifies the code to create the sysfs node always. Bug 1485489 Change-Id: Id20433344aa81108f89a36cd56c9a73dd9d2e1c8 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/399474 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@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: Allow sysfs write only to rootTerje Bergstrom2015-03-18
| | | | | | | | | | | | | | Allow write access only to root to gk20a sysfs files. Bug 200001241 Change-Id: Ibafb84ed703dd32743b520e01a57ffc82f8b4ac4 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/405028 (cherry picked from commit dc0f977fe8fcacd260bf61ab658c166b004c1fcd) Reviewed-on: http://git-master/r/406898 Reviewed-by: Mandar Padmawar <mpadmawar@nvidia.com> Tested-by: Mandar Padmawar <mpadmawar@nvidia.com>
* gpu: nvgpu: gk20a: check the return value of gk20a_channel_busyKerwin Wan2015-03-18
| | | | | | | | | | | | | | gk20a_channel_busy is called to host gpu so that gk20a can be accessed. But it may return error like if gpu fails to be powered on. Always check the return value of gk20a_channel_busy to avoid illegal access to gk20a. Bug 1488409 Change-Id: Ie22da9e436ee5ea711003530419f546a73791b73 Signed-off-by: Kerwin Wan <kerwinw@nvidia.com> Reviewed-on: http://git-master/r/395180 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@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>
generated by cgit v1.2.2 (git 2.25.0) at 2024-08-22 21:08:33 -0400