1b255f1ccc
Will be used to more cleanly implement existing method interfaces that take some confusing (IEDTkey, inherited from VBIOS, which RM no longer uses on Ampere) match values to determine which display path to operate on. Methods will be protected from racing with supervisor, and from being called where they shouldn't be (ie. without an OR assigned). v2: - use ?: (lyude) v3: - fix return code if noacquire() method fails Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
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* Copyright 2021 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "priv.h"
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#include "conn.h"
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#include "outp.h"
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#include <nvif/class.h>
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#include <nvif/if0010.h>
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static int
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nvkm_udisp_sclass(struct nvkm_object *object, int index, struct nvkm_oclass *sclass)
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{
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struct nvkm_disp *disp = nvkm_udisp(object);
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if (index-- == 0) {
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sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_CONN };
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sclass->ctor = nvkm_uconn_new;
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return 0;
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}
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if (index-- == 0) {
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sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_OUTP };
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sclass->ctor = nvkm_uoutp_new;
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return 0;
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}
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if (disp->func->user[index].ctor) {
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sclass->base = disp->func->user[index].base;
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sclass->ctor = disp->func->user[index].ctor;
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return 0;
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}
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return -EINVAL;
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}
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static int
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nvkm_udisp_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc)
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{
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struct nvkm_disp *disp = nvkm_udisp(object);
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if (disp->engine.subdev.device->card_type >= NV_50)
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return nv50_disp_root_mthd_(object, mthd, argv, argc);
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return nv04_disp_mthd(object, mthd, argv, argc);
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}
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static void *
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nvkm_udisp_dtor(struct nvkm_object *object)
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{
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struct nvkm_disp *disp = nvkm_udisp(object);
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spin_lock(&disp->client.lock);
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if (object == &disp->client.object)
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disp->client.object.func = NULL;
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spin_unlock(&disp->client.lock);
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return NULL;
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}
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static const struct nvkm_object_func
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nvkm_udisp = {
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.dtor = nvkm_udisp_dtor,
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.mthd = nvkm_udisp_mthd,
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.ntfy = nvkm_disp_ntfy,
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.sclass = nvkm_udisp_sclass,
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};
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int
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nvkm_udisp_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_object **pobject)
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{
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struct nvkm_disp *disp = nvkm_disp(oclass->engine);
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struct nvkm_conn *conn;
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struct nvkm_outp *outp;
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union nvif_disp_args *args = argv;
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if (argc != sizeof(args->v0) || args->v0.version != 0)
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return -ENOSYS;
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spin_lock(&disp->client.lock);
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if (disp->client.object.func) {
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spin_unlock(&disp->client.lock);
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return -EBUSY;
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}
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nvkm_object_ctor(&nvkm_udisp, oclass, &disp->client.object);
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*pobject = &disp->client.object;
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spin_unlock(&disp->client.lock);
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args->v0.conn_mask = 0;
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list_for_each_entry(conn, &disp->conns, head)
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args->v0.conn_mask |= BIT(conn->index);
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args->v0.outp_mask = 0;
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list_for_each_entry(outp, &disp->outps, head)
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args->v0.outp_mask |= BIT(outp->index);
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return 0;
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}
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