diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mc/ga100.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mc/ga100.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/ga100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/ga100.c new file mode 100644 index 000000000..5d28d30d0 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/ga100.c @@ -0,0 +1,76 @@ +/* + * Copyright 2021 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "priv.h" + +static void +ga100_mc_device_disable(struct nvkm_mc *mc, u32 mask) +{ + struct nvkm_device *device = mc->subdev.device; + + nvkm_mask(device, 0x000600, mask, 0x00000000); + nvkm_rd32(device, 0x000600); + nvkm_rd32(device, 0x000600); +} + +static void +ga100_mc_device_enable(struct nvkm_mc *mc, u32 mask) +{ + struct nvkm_device *device = mc->subdev.device; + + nvkm_mask(device, 0x000600, mask, mask); + nvkm_rd32(device, 0x000600); + nvkm_rd32(device, 0x000600); +} + +static bool +ga100_mc_device_enabled(struct nvkm_mc *mc, u32 mask) +{ + return (nvkm_rd32(mc->subdev.device, 0x000600) & mask) == mask; +} + +static const struct nvkm_mc_device_func +ga100_mc_device = { + .enabled = ga100_mc_device_enabled, + .enable = ga100_mc_device_enable, + .disable = ga100_mc_device_disable, +}; + +static void +ga100_mc_init(struct nvkm_mc *mc) +{ + struct nvkm_device *device = mc->subdev.device; + + nvkm_wr32(device, 0x000200, 0xffffffff); + nvkm_wr32(device, 0x000600, 0xffffffff); +} + +static const struct nvkm_mc_func +ga100_mc = { + .init = ga100_mc_init, + .device = &ga100_mc_device, +}; + +int +ga100_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc) +{ + return nvkm_mc_new_(&ga100_mc, device, type, inst, pmc); +} |