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path: root/drivers/gpu/drm/nouveau/nouveau_platform.c
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2018-07-16drm/nouveau: Replace drm_dev_unref with drm_dev_putThomas Zimmermann1-1/+1
This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann <tdz@users.sourceforge.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-04-06drm/nouveau/platform: support for probing GP10BAlexandre Courbot1-0/+10
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-04-06drm/nouveau/platform: make VDD regulator optionalAlexandre Courbot1-0/+2
GP10B's power is managed by generic PM domains, so it does not require a VDD regulator. Add this option into the chip function structure. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-04-06drm/nouveau/tegra: acquire and enable reference clock if neededAlexandre Courbot1-1/+6
GM20B requires an extra clock compared to GK20A. Add that information into the platform data and acquire and enable this clock if necessary. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-02-25drm/nouveau: platform: Fix deferred probeThierry Reding1-1/+1
The error cleanup paths aren't quite correct and will crash upon deferred probe. Cc: stable@vger.kernel.org # v4.3+ Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-01-11drm/nouveau/gk20a: Add MODULE_FIRMWARE for gk20aNicolas Chauvet1-0/+11
This patch is needed by initramfs tools to detect the required firmware files for the module. This patch tests for either TEGRA_124_SOC or TEGRA_132_SOC for the firmwares related to the Tegra K1 generation. v2: move the MODULE_FIRMWARE to the nvidia_platform.c file. This will avoid to test for NOUVEAU_PLATFORM_DRIVER Signed-off-by: Nicolas Chauvet <kwizart@gmail.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-11-03drm/nouveau/platform: allow to specify the IOMMU bitAlexandre Courbot1-3/+16
Current Tegra code taking advantage of the IOMMU assumes a hardcoded value for the IOMMU bit. Make it a platform property instead for flexibility. v2 (Ben Skeggs): remove nvkm dependence on drm structures Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-08-28drm/nouveau/tegra: merge platform setup from nouveau drmBen Skeggs1-213/+11
The copyright header in nvkm/engine/device/platform.c has been replaced with the NVIDIA one from drm/nouveau_platform.c, as most of the actual code is now theirs. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-08-28drm/nouveau/platform: remove subclassing of nvkm_deviceBen Skeggs1-3/+3
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-08-28drm/nouveau/platform: recognize GM20BAlexandre Courbot1-0/+1
Allow the platform driver to recognize GM20B. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-07-27drm/nouveau/platform: fix compile error if !CONFIG_IOMMUAlexandre Courbot1-0/+16
The lack of IOMMU API support can make nouveau_platform_probe_iommu() fail to compile because struct iommu_ops is then empty. Fix this by skipping IOMMU probe in that case - lack of IOMMU on platform devices is sub-optimal, but is not an error. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-04-14drm/nouveau/platform: fix probe error pathAlexandre Courbot1-2/+1
A "return 0" found its way in the middle of the error path of nouveau_platform_probe(), remove it as it will make the kernel crash if we try to unload the module afterwards. While we are at it, also remove the IOMMU domain if it has been created, as we should. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-04-14drm/nouveau/platform: release IOMMU's mm upon exitAlexandre Courbot1-0/+1
nvkm_mm_fini() was not called when exiting the driver, resulting in a memory leak. Fix this. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-04-14drm/nouveau/platform: probe IOMMU if presentAlexandre Courbot1-1/+74
Tegra SoCs have an IOMMU that can be used to present non-contiguous physical memory as contiguous to the GPU and maximize the use of large pages in the GPU MMU, leading to performance gains. This patch adds support for probing such a IOMMU if present and make its properties available in the nouveau_platform_gpu structure so subsystems can take advantage of it. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-01-22drm/nouveau: finalise nvkm namespace switch (no binary change)Ben Skeggs1-1/+1
The namespace of NVKM is being changed to nvkm_ instead of nouveau_, which will be used for the DRM part of the driver. This is being done in order to make it very clear as to what part of the driver a given symbol belongs to, and as a minor step towards splitting the DRM driver out to be able to stand on its own (for virt). Because there's already a large amount of churn here anyway, this is as good a time as any to also switch to NVIDIA's device and chipset naming to ease collaboration with them. A comparison of objdump disassemblies proves no code changes. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-01-22drm/nouveau/nvif: namespace of nvkm accessors (no binary change)Ben Skeggs1-1/+1
NVKM is having it's namespace switched to nvkm_, which will conflict with these functions (which are workarounds for the fact that as of yet, we still aren't able to split DRM and NVKM completely). A comparison of objdump disassemblies proves no code changes. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-01-22drm/nouveau: merge nouveau_platform.ko into nouveau.koAlexandre Courbot1-6/+0
Having the two modules separated causes various unneeded complications, including having to export symbols accessed between the modules. Make things simpler by compiling platform device support into nouveau.ko. Platform device support remains optional and is only compiled on Tegra. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Vince Hsu <vinceh@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-12-02drm/nouveau/platform: add GPU speedo information to nouveau platformVince Hsu1-0/+2
For GK20A we need the GPU speedo value to calculate voltage levels. Signed-off-by: Vince Hsu <vinceh@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-15drm/nouveau/platform: fix compilation errorAlexandre Courbot1-1/+2
nouveau_platform.c was still using the old nouveau_dev() macro, triggering a compilation error. Fix this. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: platform: update moved Tegra headerAlexandre Courbot1-1/+1
Header for tegra_powergate functions has moved to soc/tegra/pmc.h. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: support for probing platform devicesAlexandre Courbot1-0/+182
Add a platform driver for Nouveau devices declared using the device tree or platform data. This driver currently supports GK20A on Tegra platforms and is only compiled for these platforms if Nouveau is enabled. Nouveau will probe the chip type itself using the BOOT0 register, so all this driver really needs to do is to make sure the module is powered and its clocks active before calling nouveau_drm_platform_probe(). Heavily based on work done by Thierry Reding. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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