[Nouveau] [PATCH 36/44] drm/nouveau/disp: add dp mst id get/put methods
Ben Skeggs
skeggsb at gmail.com
Thu Sep 14 08:46:17 UTC 2023
From: Ben Skeggs <bskeggs at redhat.com>
- preparation for GSP-RM
Signed-off-by: Ben Skeggs <bskeggs at redhat.com>
---
drivers/gpu/drm/nouveau/dispnv50/disp.c | 32 ++++++++++++++++---
drivers/gpu/drm/nouveau/dispnv50/head.h | 1 +
drivers/gpu/drm/nouveau/dispnv50/headc57d.c | 14 ++++++++
drivers/gpu/drm/nouveau/include/nvif/if0012.h | 18 +++++++++++
drivers/gpu/drm/nouveau/include/nvif/outp.h | 2 ++
drivers/gpu/drm/nouveau/nvif/outp.c | 29 +++++++++++++++++
drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c | 15 +++++++++
.../gpu/drm/nouveau/nvkm/engine/disp/outp.h | 2 ++
.../gpu/drm/nouveau/nvkm/engine/disp/uoutp.c | 28 ++++++++++++++++
9 files changed, 137 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 9cce1323338b..2c1dd7106518 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -869,6 +869,8 @@ struct nv50_msto {
struct nv50_mstc *mstc;
bool disabled;
bool enabled;
+
+ u32 display_id;
};
struct nouveau_encoder *nv50_real_outp(struct drm_encoder *encoder)
@@ -893,10 +895,17 @@ nv50_msto_cleanup(struct drm_atomic_state *state,
struct nouveau_drm *drm = nouveau_drm(msto->encoder.dev);
struct drm_dp_mst_atomic_payload *payload =
drm_atomic_get_mst_payload_state(mst_state, msto->mstc->port);
+ struct nv50_mstc *mstc = msto->mstc;
+ struct nv50_mstm *mstm = mstc->mstm;
NV_ATOMIC(drm, "%s: msto cleanup\n", msto->encoder.name);
if (msto->disabled) {
+ if (msto->head->func->display_id) {
+ nvif_outp_dp_mst_id_put(&mstm->outp->outp, msto->display_id);
+ msto->display_id = 0;
+ }
+
msto->mstc = NULL;
msto->disabled = false;
} else if (msto->enabled) {
@@ -1039,6 +1048,11 @@ nv50_msto_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *st
nouveau_dp_train(mstm->outp, true, 0, 0);
}
+ if (head->func->display_id) {
+ if (!WARN_ON(nvif_outp_dp_mst_id_get(&mstm->outp->outp, &msto->display_id)))
+ head->func->display_id(head, msto->display_id);
+ }
+
if (mstm->outp->outp.or.link & 1)
proto = NV917D_SOR_SET_CONTROL_PROTOCOL_DP_A;
else
@@ -1059,6 +1073,9 @@ nv50_msto_atomic_disable(struct drm_encoder *encoder, struct drm_atomic_state *s
struct nv50_mstc *mstc = msto->mstc;
struct nv50_mstm *mstm = mstc->mstm;
+ if (msto->head->func->display_id)
+ msto->head->func->display_id(msto->head, 0);
+
mstm->outp->update(mstm->outp, msto->head->base.index, NULL, 0, 0);
mstm->modified = true;
if (!--mstm->links)
@@ -1542,7 +1559,7 @@ static void
nv50_sor_atomic_disable(struct drm_encoder *encoder, struct drm_atomic_state *state)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_crtc *nv_crtc = nouveau_crtc(nv_encoder->crtc);
+ struct nv50_head *head = nv50_head(nv_encoder->crtc);
struct nouveau_connector *nv_connector = nv50_outp_get_old_connector(state, nv_encoder);
#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
@@ -1561,7 +1578,7 @@ nv50_sor_atomic_disable(struct drm_encoder *encoder, struct drm_atomic_state *st
#endif
if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS && nv_encoder->hdmi.enabled) {
- nvif_outp_hdmi(&nv_encoder->outp, nv_crtc->index,
+ nvif_outp_hdmi(&nv_encoder->outp, head->base.index,
false, 0, 0, 0, false, false, false);
nv_encoder->hdmi.enabled = false;
}
@@ -1569,8 +1586,11 @@ nv50_sor_atomic_disable(struct drm_encoder *encoder, struct drm_atomic_state *st
if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
nouveau_dp_power_down(nv_encoder);
- nv_encoder->update(nv_encoder, nv_crtc->index, NULL, 0, 0);
- nv50_audio_disable(encoder, nv_crtc);
+ if (head->func->display_id)
+ head->func->display_id(head, 0);
+
+ nv_encoder->update(nv_encoder, head->base.index, NULL, 0, 0);
+ nv50_audio_disable(encoder, &head->base);
nv_encoder->crtc = NULL;
}
@@ -1583,6 +1603,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta
nv50_head_atom(drm_atomic_get_new_crtc_state(state, &nv_crtc->base));
struct drm_display_mode *mode = &asyh->state.adjusted_mode;
struct nv50_disp *disp = nv50_disp(encoder->dev);
+ struct nv50_head *head = nv50_head(&nv_crtc->base);
struct nvif_outp *outp = &nv_encoder->outp;
struct drm_device *dev = encoder->dev;
struct nouveau_drm *drm = nouveau_drm(dev);
@@ -1680,6 +1701,9 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta
break;
}
+ if (head->func->display_id)
+ head->func->display_id(head, BIT(nv_encoder->dcb->id));
+
nv_encoder->update(nv_encoder, nv_crtc->index, asyh, proto, depth);
}
diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.h b/drivers/gpu/drm/nouveau/dispnv50/head.h
index 41c8788dfb31..e9d17037ffcf 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/head.h
+++ b/drivers/gpu/drm/nouveau/dispnv50/head.h
@@ -49,6 +49,7 @@ struct nv50_head_func {
int (*procamp)(struct nv50_head *, struct nv50_head_atom *);
int (*or)(struct nv50_head *, struct nv50_head_atom *);
void (*static_wndw_map)(struct nv50_head *, struct nv50_head_atom *);
+ int (*display_id)(struct nv50_head *, u32 display_id);
};
extern const struct nv50_head_func head507d;
diff --git a/drivers/gpu/drm/nouveau/dispnv50/headc57d.c b/drivers/gpu/drm/nouveau/dispnv50/headc57d.c
index 543f08ceaad6..53b1248c40ec 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/headc57d.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/headc57d.c
@@ -27,6 +27,19 @@
#include <nvhw/class/clc57d.h>
+static int
+headc57d_display_id(struct nv50_head *head, u32 display_id)
+{
+ struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
+ int ret;
+
+ if ((ret = PUSH_WAIT(push, 2)))
+ return ret;
+
+ PUSH_NVSQ(push, NVC57D, 0x2020 + (head->base.index * 0x400), display_id);
+ return 0;
+}
+
static int
headc57d_or(struct nv50_head *head, struct nv50_head_atom *asyh)
{
@@ -250,4 +263,5 @@ headc57d = {
.or = headc57d_or,
/* TODO: flexible window mappings */
.static_wndw_map = headc37d_static_wndw_map,
+ .display_id = headc57d_display_id,
};
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0012.h b/drivers/gpu/drm/nouveau/include/nvif/if0012.h
index 6fb297b65ae8..502f342e0d77 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if0012.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if0012.h
@@ -37,6 +37,8 @@ union nvif_outp_args {
#define NVIF_OUTP_V0_DP_TRAIN 0x73
#define NVIF_OUTP_V0_DP_DRIVE 0x74
#define NVIF_OUTP_V0_DP_SST 0x75
+#define NVIF_OUTP_V0_DP_MST_ID_GET 0x76
+#define NVIF_OUTP_V0_DP_MST_ID_PUT 0x77
#define NVIF_OUTP_V0_DP_MST_VCPI 0x78
union nvif_outp_detect_args {
@@ -234,6 +236,22 @@ union nvif_outp_dp_sst_args {
} v0;
};
+union nvif_outp_dp_mst_id_put_args {
+ struct nvif_outp_dp_mst_id_put_v0 {
+ __u8 version;
+ __u8 pad01[3];
+ __u32 id;
+ } v0;
+};
+
+union nvif_outp_dp_mst_id_get_args {
+ struct nvif_outp_dp_mst_id_get_v0 {
+ __u8 version;
+ __u8 pad01[3];
+ __u32 id;
+ } v0;
+};
+
union nvif_outp_dp_mst_vcpi_args {
struct nvif_outp_dp_mst_vcpi_v0 {
__u8 version;
diff --git a/drivers/gpu/drm/nouveau/include/nvif/outp.h b/drivers/gpu/drm/nouveau/include/nvif/outp.h
index 881cbed5f0ee..2d86838ed559 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/outp.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/outp.h
@@ -69,6 +69,8 @@ int nvif_outp_dp_train(struct nvif_outp *, u8 dpcd[DP_RECEIVER_CAP_SIZE],
bool retrain);
int nvif_outp_dp_drive(struct nvif_outp *, u8 link_nr, u8 pe[4], u8 vs[4]);
int nvif_outp_dp_sst(struct nvif_outp *, int head, u32 watermark, u32 hblanksym, u32 vblanksym);
+int nvif_outp_dp_mst_id_get(struct nvif_outp *, u32 *id);
+int nvif_outp_dp_mst_id_put(struct nvif_outp *, u32 id);
int nvif_outp_dp_mst_vcpi(struct nvif_outp *, int head,
u8 start_slot, u8 num_slots, u16 pbn, u16 aligned_pbn);
#endif
diff --git a/drivers/gpu/drm/nouveau/nvif/outp.c b/drivers/gpu/drm/nouveau/nvif/outp.c
index 952103aa93b7..97e5855c2cf5 100644
--- a/drivers/gpu/drm/nouveau/nvif/outp.c
+++ b/drivers/gpu/drm/nouveau/nvif/outp.c
@@ -46,6 +46,35 @@ nvif_outp_dp_mst_vcpi(struct nvif_outp *outp, int head,
return ret;
}
+int
+nvif_outp_dp_mst_id_put(struct nvif_outp *outp, u32 id)
+{
+ struct nvif_outp_dp_mst_id_get_v0 args;
+ int ret;
+
+ args.version = 0;
+ args.id = id;
+ ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_MST_ID_PUT, &args, sizeof(args));
+ NVIF_ERRON(ret, &outp->object, "[DP_MST_ID_PUT id:%08x]", args.id);
+ return ret;
+}
+
+int
+nvif_outp_dp_mst_id_get(struct nvif_outp *outp, u32 *id)
+{
+ struct nvif_outp_dp_mst_id_get_v0 args;
+ int ret;
+
+ args.version = 0;
+ ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_MST_ID_GET, &args, sizeof(args));
+ NVIF_ERRON(ret, &outp->object, "[DP_MST_ID_GET] id:%08x", args.id);
+ if (ret)
+ return ret;
+
+ *id = args.id;
+ return 0;
+}
+
int
nvif_outp_dp_sst(struct nvif_outp *outp, int head, u32 watermark, u32 hblanksym, u32 vblanksym)
{
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c
index 77a91d42b977..aaa7796946ce 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c
@@ -41,6 +41,19 @@
*/
#define AMPERE_IED_HACK(disp) ((disp)->engine.subdev.device->card_type >= GA100)
+static int
+nvkm_dp_mst_id_put(struct nvkm_outp *outp, u32 id)
+{
+ return 0;
+}
+
+static int
+nvkm_dp_mst_id_get(struct nvkm_outp *outp, u32 *pid)
+{
+ *pid = BIT(outp->index);
+ return 0;
+}
+
static int
nvkm_dp_aux_xfer(struct nvkm_outp *outp, u8 type, u32 addr, u8 *data, u8 *size)
{
@@ -614,6 +627,8 @@ nvkm_dp_func = {
.dp.aux_xfer = nvkm_dp_aux_xfer,
.dp.train = nvkm_dp_train,
.dp.drive = nvkm_dp_drive,
+ .dp.mst_id_get = nvkm_dp_mst_id_get,
+ .dp.mst_id_put = nvkm_dp_mst_id_put,
};
int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h
index cda17941de89..3ec7318d9144 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h
@@ -109,6 +109,8 @@ struct nvkm_outp_func {
int (*rates)(struct nvkm_outp *);
int (*train)(struct nvkm_outp *, bool retrain);
int (*drive)(struct nvkm_outp *, u8 lanes, u8 pe[4], u8 vs[4]);
+ int (*mst_id_get)(struct nvkm_outp *, u32 *id);
+ int (*mst_id_put)(struct nvkm_outp *, u32 id);
} dp;
};
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c
index 225f88fbdae0..ad52d9ed594a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c
@@ -45,6 +45,32 @@ nvkm_uoutp_mthd_dp_mst_vcpi(struct nvkm_outp *outp, void *argv, u32 argc)
return 0;
}
+static int
+nvkm_uoutp_mthd_dp_mst_id_put(struct nvkm_outp *outp, void *argv, u32 argc)
+{
+ union nvif_outp_dp_mst_id_put_args *args = argv;
+
+ if (argc != sizeof(args->v0) || args->v0.version != 0)
+ return -ENOSYS;
+ if (!outp->func->dp.mst_id_put)
+ return -EINVAL;
+
+ return outp->func->dp.mst_id_put(outp, args->v0.id);
+}
+
+static int
+nvkm_uoutp_mthd_dp_mst_id_get(struct nvkm_outp *outp, void *argv, u32 argc)
+{
+ union nvif_outp_dp_mst_id_get_args *args = argv;
+
+ if (argc != sizeof(args->v0) || args->v0.version != 0)
+ return -ENOSYS;
+ if (!outp->func->dp.mst_id_get)
+ return -EINVAL;
+
+ return outp->func->dp.mst_id_get(outp, &args->v0.id);
+}
+
static int
nvkm_uoutp_mthd_dp_sst(struct nvkm_outp *outp, void *argv, u32 argc)
{
@@ -482,6 +508,8 @@ nvkm_uoutp_mthd_acquired(struct nvkm_outp *outp, u32 mthd, void *argv, u32 argc)
case NVIF_OUTP_V0_DP_TRAIN : return nvkm_uoutp_mthd_dp_train (outp, argv, argc);
case NVIF_OUTP_V0_DP_DRIVE : return nvkm_uoutp_mthd_dp_drive (outp, argv, argc);
case NVIF_OUTP_V0_DP_SST : return nvkm_uoutp_mthd_dp_sst (outp, argv, argc);
+ case NVIF_OUTP_V0_DP_MST_ID_GET: return nvkm_uoutp_mthd_dp_mst_id_get(outp, argv, argc);
+ case NVIF_OUTP_V0_DP_MST_ID_PUT: return nvkm_uoutp_mthd_dp_mst_id_put(outp, argv, argc);
case NVIF_OUTP_V0_DP_MST_VCPI : return nvkm_uoutp_mthd_dp_mst_vcpi (outp, argv, argc);
default:
break;
--
2.41.0
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