diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c new file mode 100644 index 000000000..87f26f54b --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c @@ -0,0 +1,62 @@ +/* + * Copyright 2015 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. + * + * Authors: Ben Skeggs <bskeggs@redhat.com> + */ +#include "nv50.h" + +#include <subdev/timer.h> + +void +g84_bar_flush(struct nvkm_bar *bar) +{ + struct nvkm_device *device = bar->subdev.device; + unsigned long flags; + spin_lock_irqsave(&bar->lock, flags); + nvkm_wr32(device, 0x070000, 0x00000001); + nvkm_msec(device, 2000, + if (!(nvkm_rd32(device, 0x070000) & 0x00000002)) + break; + ); + spin_unlock_irqrestore(&bar->lock, flags); +} + +static const struct nvkm_bar_func +g84_bar_func = { + .dtor = nv50_bar_dtor, + .oneinit = nv50_bar_oneinit, + .init = nv50_bar_init, + .bar1.init = nv50_bar_bar1_init, + .bar1.fini = nv50_bar_bar1_fini, + .bar1.wait = nv50_bar_bar1_wait, + .bar1.vmm = nv50_bar_bar1_vmm, + .bar2.init = nv50_bar_bar2_init, + .bar2.fini = nv50_bar_bar2_fini, + .bar2.wait = nv50_bar_bar1_wait, + .bar2.vmm = nv50_bar_bar2_vmm, + .flush = g84_bar_flush, +}; + +int +g84_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar) +{ + return nv50_bar_new_(&g84_bar_func, device, index, 0x200, pbar); +} |