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Message-ID: <20230919220442.202488-14-lyude@redhat.com>
Date: Tue, 19 Sep 2023 17:56:08 -0400
From: Lyude Paul <lyude@...hat.com>
To: dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org
Cc: Ben Skeggs <bskeggs@...hat.com>, Danilo Krummrich <me@...r.org>,
Karol Herbst <kherbst@...hat.com>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>, Wayne Lin <Wayne.Lin@....com>,
Kees Cook <keescook@...omium.org>,
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v3 13/44] drm/nouveau/disp: add acquire_sor/pior()
From: Ben Skeggs <bskeggs@...hat.com>
- preparing to move protocol-specific args out of acquire() again
- avoid re-acquiring acquired output, will matter when enforced later
- sor/pior done at same time due to shared tmds/dp handling
Signed-off-by: Ben Skeggs <bskeggs@...hat.com>
Reviewed-by: Lyude Paul <lyude@...hat.com>
Acked-by: Danilo Krummrich <me@...r.org>
Signed-off-by: Lyude Paul <lyude@...hat.com>
---
drivers/gpu/drm/nouveau/dispnv50/disp.c | 15 ++++++----
drivers/gpu/drm/nouveau/include/nvif/if0012.h | 7 ++++-
drivers/gpu/drm/nouveau/include/nvif/outp.h | 2 ++
drivers/gpu/drm/nouveau/nvif/outp.c | 24 ++++++++++++++++
.../gpu/drm/nouveau/nvkm/engine/disp/uoutp.c | 28 ++++++-------------
5 files changed, 50 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 62fd910ffef61..814d2be34d202 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -1034,7 +1034,7 @@ nv50_msto_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *st
return;
if (!mstm->links++) {
- /*XXX: MST audio. */
+ nvif_outp_acquire_sor(&mstm->outp->outp, false /*TODO: MST audio... */);
nvif_outp_acquire_dp(&mstm->outp->outp, mstm->outp->dp.dpcd, 0, 0, false, true);
}
@@ -1602,15 +1602,17 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta
if ((disp->disp->object.oclass == GT214_DISP ||
disp->disp->object.oclass >= GF110_DISP) &&
+ nv_encoder->dcb->type != DCB_OUTPUT_LVDS &&
drm_detect_monitor_audio(nv_connector->edid))
hda = true;
+ if (!nvif_outp_acquired(outp))
+ nvif_outp_acquire_sor(outp, hda);
+
switch (nv_encoder->dcb->type) {
case DCB_OUTPUT_TMDS:
- if (disp->disp->object.oclass == NV50_DISP ||
- !drm_detect_hdmi_monitor(nv_connector->edid))
- nvif_outp_acquire_tmds(outp, nv_crtc->index, false, 0, 0, 0, false);
- else
+ if (disp->disp->object.oclass != NV50_DISP &&
+ drm_detect_hdmi_monitor(nv_connector->edid))
nv50_hdmi_enable(encoder, nv_crtc, nv_connector, state, mode, hda);
if (nv_encoder->outp.or.link & 1) {
@@ -1850,6 +1852,9 @@ nv50_pior_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *st
default: asyh->or.depth = NV837D_PIOR_SET_CONTROL_PIXEL_DEPTH_DEFAULT; break;
}
+ if (!nvif_outp_acquired(&nv_encoder->outp))
+ nvif_outp_acquire_pior(&nv_encoder->outp);
+
switch (nv_encoder->dcb->type) {
case DCB_OUTPUT_TMDS:
ctrl |= NVDEF(NV507D, PIOR_SET_CONTROL, PROTOCOL, EXT_TMDS_ENC);
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0012.h b/drivers/gpu/drm/nouveau/include/nvif/if0012.h
index d139d070c0bc6..57bc4b2f2b170 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if0012.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if0012.h
@@ -60,7 +60,9 @@ union nvif_outp_acquire_args {
struct nvif_outp_acquire_v0 {
__u8 version;
#define NVIF_OUTP_ACQUIRE_V0_DAC 0x00
-#define NVIF_OUTP_ACQUIRE_V0_TMDS 0x02
+#define NVIF_OUTP_ACQUIRE_V0_SOR 0x01
+#define NVIF_OUTP_ACQUIRE_V0_PIOR 0x02
+#define NVIF_OUTP_ACQUIRE_V0_TMDS 0x05
#define NVIF_OUTP_ACQUIRE_V0_LVDS 0x03
#define NVIF_OUTP_ACQUIRE_V0_DP 0x04
__u8 type;
@@ -68,6 +70,9 @@ union nvif_outp_acquire_args {
__u8 link;
__u8 pad04[4];
union {
+ struct {
+ __u8 hda;
+ } sor;
struct {
__u8 head;
__u8 hdmi;
diff --git a/drivers/gpu/drm/nouveau/include/nvif/outp.h b/drivers/gpu/drm/nouveau/include/nvif/outp.h
index c6d8823ef782c..a9090424dbf7e 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/outp.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/outp.h
@@ -29,6 +29,8 @@ int nvif_outp_edid_get(struct nvif_outp *, u8 **pedid);
int nvif_outp_load_detect(struct nvif_outp *, u32 loadval);
int nvif_outp_acquire_dac(struct nvif_outp *);
+int nvif_outp_acquire_sor(struct nvif_outp *, bool hda);
+int nvif_outp_acquire_pior(struct nvif_outp *);
int nvif_outp_acquire_tmds(struct nvif_outp *, int head,
bool hdmi, u8 max_ac_packet, u8 rekey, u8 scdc, bool hda);
int nvif_outp_acquire_lvds(struct nvif_outp *, bool dual, bool bpc8);
diff --git a/drivers/gpu/drm/nouveau/nvif/outp.c b/drivers/gpu/drm/nouveau/nvif/outp.c
index 41c4de40895f0..81dbda52117ec 100644
--- a/drivers/gpu/drm/nouveau/nvif/outp.c
+++ b/drivers/gpu/drm/nouveau/nvif/outp.c
@@ -187,6 +187,30 @@ nvif_outp_acquire(struct nvif_outp *outp, u8 type, struct nvif_outp_acquire_v0 *
return 0;
}
+int
+nvif_outp_acquire_pior(struct nvif_outp *outp)
+{
+ struct nvif_outp_acquire_v0 args;
+ int ret;
+
+ ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_PIOR, &args);
+ NVIF_ERRON(ret, &outp->object, "[ACQUIRE PIOR] or:%d", args.or);
+ return ret;
+}
+
+int
+nvif_outp_acquire_sor(struct nvif_outp *outp, bool hda)
+{
+ struct nvif_outp_acquire_v0 args;
+ int ret;
+
+ args.sor.hda = hda;
+
+ ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_SOR, &args);
+ NVIF_ERRON(ret, &outp->object, "[ACQUIRE SOR] or:%d link:%d", args.or, args.link);
+ return ret;
+}
+
int
nvif_outp_acquire_dac(struct nvif_outp *outp)
{
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c
index 73c6227446fb8..d71bc188047e3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c
@@ -61,12 +61,6 @@ static int
nvkm_uoutp_mthd_acquire_dp(struct nvkm_outp *outp, u8 dpcd[DP_RECEIVER_CAP_SIZE],
u8 link_nr, u8 link_bw, bool hda, bool mst)
{
- int ret;
-
- ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_USER, hda);
- if (ret)
- return ret;
-
memcpy(outp->dp.dpcd, dpcd, sizeof(outp->dp.dpcd));
outp->dp.lt.nr = link_nr;
outp->dp.lt.bw = link_bw;
@@ -146,25 +140,16 @@ static int
nvkm_uoutp_mthd_acquire_tmds(struct nvkm_outp *outp, u8 head, u8 hdmi, u8 hdmi_max_ac_packet,
u8 hdmi_rekey, u8 hdmi_scdc, u8 hdmi_hda)
{
- struct nvkm_ior *ior;
- int ret;
+ struct nvkm_ior *ior = outp->ior;
if (!(outp->asy.head = nvkm_head_find(outp->disp, head)))
return -EINVAL;
- ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_USER, hdmi && hdmi_hda);
- if (ret)
- return ret;
-
- ior = outp->ior;
-
if (hdmi) {
if (!ior->func->hdmi ||
hdmi_max_ac_packet > 0x1f || hdmi_rekey > 0x7f ||
- (hdmi_scdc && !ior->func->hdmi->scdc)) {
- nvkm_outp_release_or(outp, NVKM_OUTP_USER);
+ (hdmi_scdc && !ior->func->hdmi->scdc))
return -EINVAL;
- }
ior->func->hdmi->ctrl(ior, head, hdmi, hdmi_max_ac_packet, hdmi_rekey);
if (ior->func->hdmi->scdc)
@@ -182,8 +167,7 @@ nvkm_uoutp_mthd_acquire_lvds(struct nvkm_outp *outp, bool dual, bool bpc8)
outp->lvds.dual = dual;
outp->lvds.bpc8 = bpc8;
-
- return nvkm_outp_acquire_or(outp, NVKM_OUTP_USER, false);
+ return 0;
}
static int
@@ -214,13 +198,17 @@ nvkm_uoutp_mthd_acquire(struct nvkm_outp *outp, void *argv, u32 argc)
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
- if (outp->ior)
+ if (outp->ior && args->v0.type <= NVIF_OUTP_ACQUIRE_V0_PIOR)
return -EBUSY;
switch (args->v0.type) {
case NVIF_OUTP_ACQUIRE_V0_DAC:
+ case NVIF_OUTP_ACQUIRE_V0_PIOR:
ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_USER, false);
break;
+ case NVIF_OUTP_ACQUIRE_V0_SOR:
+ ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_USER, args->v0.sor.hda);
+ break;
case NVIF_OUTP_ACQUIRE_V0_TMDS:
ret = nvkm_uoutp_mthd_acquire_tmds(outp, args->v0.tmds.head,
args->v0.tmds.hdmi,
--
2.41.0
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