diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/headnv04.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/headnv04.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/headnv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/headnv04.c new file mode 100644 index 000000000000..dcf459282aa1 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/headnv04.c @@ -0,0 +1,74 @@ +/* + * Copyright 2017 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 "head.h" + +static void +nv04_head_vblank_put(struct nvkm_head *head) +{ + struct nvkm_device *device = head->disp->engine.subdev.device; + nvkm_wr32(device, 0x600140 + (head->id * 0x2000) , 0x00000000); +} + +static void +nv04_head_vblank_get(struct nvkm_head *head) +{ + struct nvkm_device *device = head->disp->engine.subdev.device; + nvkm_wr32(device, 0x600140 + (head->id * 0x2000) , 0x00000001); +} + +static void +nv04_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline) +{ + struct nvkm_device *device = head->disp->engine.subdev.device; + u32 data = nvkm_rd32(device, 0x600868 + (head->id * 0x2000)); + *hline = (data & 0xffff0000) >> 16; + *vline = (data & 0x0000ffff); +} + +static void +nv04_head_state(struct nvkm_head *head, struct nvkm_head_state *state) +{ + struct nvkm_device *device = head->disp->engine.subdev.device; + const u32 hoff = head->id * 0x0200; + state->vblanks = nvkm_rd32(device, 0x680800 + hoff) & 0x0000ffff; + state->vtotal = nvkm_rd32(device, 0x680804 + hoff) & 0x0000ffff; + state->vblanke = state->vtotal - 1; + state->hblanks = nvkm_rd32(device, 0x680820 + hoff) & 0x0000ffff; + state->htotal = nvkm_rd32(device, 0x680824 + hoff) & 0x0000ffff; + state->hblanke = state->htotal - 1; +} + +static const struct nvkm_head_func +nv04_head = { + .state = nv04_head_state, + .rgpos = nv04_head_rgpos, + .vblank_get = nv04_head_vblank_get, + .vblank_put = nv04_head_vblank_put, +}; + +int +nv04_head_new(struct nvkm_disp *disp, int id) +{ + return nvkm_head_new_(&nv04_head, disp, id); +} |