diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c new file mode 100644 index 000000000000..23d1b5c0dc16 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c @@ -0,0 +1,240 @@ +/* + * Copyright 2013 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 + */ +#include "priv.h" +#include "conn.h" +#include "outp.h" + +#include <core/notify.h> +#include <subdev/bios.h> +#include <subdev/bios/dcb.h> + +#include <nvif/class.h> +#include <nvif/event.h> +#include <nvif/unpack.h> + +int +nvkm_disp_vblank_ctor(struct nvkm_object *object, void *data, u32 size, + struct nvkm_notify *notify) +{ + struct nvkm_disp *disp = + container_of(notify->event, typeof(*disp), vblank); + union { + struct nvif_notify_head_req_v0 v0; + } *req = data; + int ret; + + if (nvif_unpack(req->v0, 0, 0, false)) { + notify->size = sizeof(struct nvif_notify_head_rep_v0); + if (ret = -ENXIO, req->v0.head <= disp->vblank.index_nr) { + notify->types = 1; + notify->index = req->v0.head; + return 0; + } + } + + return ret; +} + +void +nvkm_disp_vblank(struct nvkm_disp *disp, int head) +{ + struct nvif_notify_head_rep_v0 rep = {}; + nvkm_event_send(&disp->vblank, 1, head, &rep, sizeof(rep)); +} + +static int +nvkm_disp_hpd_ctor(struct nvkm_object *object, void *data, u32 size, + struct nvkm_notify *notify) +{ + struct nvkm_disp *disp = + container_of(notify->event, typeof(*disp), hpd); + union { + struct nvif_notify_conn_req_v0 v0; + } *req = data; + struct nvkm_output *outp; + int ret; + + if (nvif_unpack(req->v0, 0, 0, false)) { + notify->size = sizeof(struct nvif_notify_conn_rep_v0); + list_for_each_entry(outp, &disp->outp, head) { + if (ret = -ENXIO, outp->conn->index == req->v0.conn) { + if (ret = -ENODEV, outp->conn->hpd.event) { + notify->types = req->v0.mask; + notify->index = req->v0.conn; + ret = 0; + } + break; + } + } + } + + return ret; +} + +static const struct nvkm_event_func +nvkm_disp_hpd_func = { + .ctor = nvkm_disp_hpd_ctor +}; + +int +nvkm_disp_ntfy(struct nvkm_object *object, u32 type, struct nvkm_event **event) +{ + struct nvkm_disp *disp = (void *)object->engine; + switch (type) { + case NV04_DISP_NTFY_VBLANK: + *event = &disp->vblank; + return 0; + case NV04_DISP_NTFY_CONN: + *event = &disp->hpd; + return 0; + default: + break; + } + return -EINVAL; +} + +int +_nvkm_disp_fini(struct nvkm_object *object, bool suspend) +{ + struct nvkm_disp *disp = (void *)object; + struct nvkm_output *outp; + int ret; + + list_for_each_entry(outp, &disp->outp, head) { + ret = nv_ofuncs(outp)->fini(nv_object(outp), suspend); + if (ret && suspend) + goto fail_outp; + } + + return nvkm_engine_fini(&disp->base, suspend); + +fail_outp: + list_for_each_entry_continue_reverse(outp, &disp->outp, head) { + nv_ofuncs(outp)->init(nv_object(outp)); + } + + return ret; +} + +int +_nvkm_disp_init(struct nvkm_object *object) +{ + struct nvkm_disp *disp = (void *)object; + struct nvkm_output *outp; + int ret; + + ret = nvkm_engine_init(&disp->base); + if (ret) + return ret; + + list_for_each_entry(outp, &disp->outp, head) { + ret = nv_ofuncs(outp)->init(nv_object(outp)); + if (ret) + goto fail_outp; + } + + return ret; + +fail_outp: + list_for_each_entry_continue_reverse(outp, &disp->outp, head) { + nv_ofuncs(outp)->fini(nv_object(outp), false); + } + + return ret; +} + +void +_nvkm_disp_dtor(struct nvkm_object *object) +{ + struct nvkm_disp *disp = (void *)object; + struct nvkm_output *outp, *outt; + + nvkm_event_fini(&disp->vblank); + nvkm_event_fini(&disp->hpd); + + if (disp->outp.next) { + list_for_each_entry_safe(outp, outt, &disp->outp, head) { + nvkm_object_ref(NULL, (struct nvkm_object **)&outp); + } + } + + nvkm_engine_destroy(&disp->base); +} + +int +nvkm_disp_create_(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, int heads, const char *intname, + const char *extname, int length, void **pobject) +{ + struct nvkm_disp_impl *impl = (void *)oclass; + struct nvkm_bios *bios = nvkm_bios(parent); + struct nvkm_disp *disp; + struct nvkm_oclass **sclass; + struct nvkm_object *object; + struct dcb_output dcbE; + u8 hpd = 0, ver, hdr; + u32 data; + int ret, i; + + ret = nvkm_engine_create_(parent, engine, oclass, true, intname, + extname, length, pobject); + disp = *pobject; + if (ret) + return ret; + + INIT_LIST_HEAD(&disp->outp); + + /* create output objects for each display path in the vbios */ + i = -1; + while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) { + if (dcbE.type == DCB_OUTPUT_UNUSED) + continue; + if (dcbE.type == DCB_OUTPUT_EOL) + break; + data = dcbE.location << 4 | dcbE.type; + + oclass = nvkm_output_oclass; + sclass = impl->outp; + while (sclass && sclass[0]) { + if (sclass[0]->handle == data) { + oclass = sclass[0]; + break; + } + sclass++; + } + + nvkm_object_ctor(*pobject, NULL, oclass, &dcbE, i, &object); + hpd = max(hpd, (u8)(dcbE.connector + 1)); + } + + ret = nvkm_event_init(&nvkm_disp_hpd_func, 3, hpd, &disp->hpd); + if (ret) + return ret; + + ret = nvkm_event_init(impl->vblank, 1, heads, &disp->vblank); + if (ret) + return ret; + + return 0; +} |