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path: root/drivers/gpu/drm/nouveau/nouveau_led.c
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2024-07-27drm/nouveau: move nvxx_* definitions to nouveau_drv.hBen Skeggs
These are some dodgy "convenience" macros for the DRM driver to peek into NVKM state. They're still used in a few places, but don't belong in nvif/device.h in any case. Move them to nouveau_drv.h, and modify callers to pass a nouveau_drm instead of an nvif_device. v2: - use drm->nvkm pointer for nvxx_*() macros, removing some void* v3: - add some explanation of the nvxx_*() macros Signed-off-by: Ben Skeggs <bskeggs@nvidia.com> Signed-off-by: Danilo Krummrich <dakr@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240726043828.58966-28-bskeggs@nvidia.com
2017-02-17drm/nouveau/drm/nouveau/led: prevent a possible use-after-freeMartin Peres
If the led class registration fails, we free drm->led but do not reset it to NULL, which means that the suspend/resume/fini function will act as if everything went well in init() and will likely crash the kernel. This patch adds the missing drm->led = NULL. Reported-by: Emmanuel Pescosta <emmanuelpescosta099@gmail.com> Signed-off-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau: allocate device object for every clientBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-10-12drm/nouveau/drm/nouveau: add a LED driver for the NVIDIA logoMartin Peres
We received a donation of a Titan which has this useless feature allowing users to control the brightness of the LED behind the logo of NVIDIA. In the true spirit of open source, let's expose that to the users of very expensive cards! This patch hooks up this LED/PWM to the LED subsystem which allows blinking it in sync with cpu/disk/network/whatever activity (heartbeat is quite nice!). Users may also implement some breathing effect or morse code support in the userspace if they feel like it. v2: - surround the use of the LED framework with ifdef CONFIG_LEDS_CLASS v3: - avoid using ifdefs everywhere, follow the recommendations of /doc/Documentation/CodingStyle. Suggested by Emil Velikov. v4 (Ben): - squashed series of fixes from ml Signed-off-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>