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Date: Fri, 13 Nov 2020 19:14:15 -0500
From: Lyude Paul <lyude@...hat.com>
To: dri-devel@...ts.freedesktop.org
Cc: Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Dave Airlie <airlied@...hat.com>,
Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@...el.com>,
Alex Deucher <alexander.deucher@....com>,
Takashi Iwai <tiwai@...e.de>, James Jones <jajones@...dia.com>,
nouveau@...ts.freedesktop.org (open list:DRM DRIVER FOR NVIDIA
GEFORCE/QUADRO GPUS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 6/8] drm/nouveau/kms/nv50-: Lookup current encoder/crtc from atomic state
Despite being an atomic driver, nouveau has a lot of leftover code that
relies on retrieving information regarding the new atomic state from
members of drm_encoder and drm_crtc. The first field being used,
drm_encoder.crtc, is deprecated for atomic drivers. The second field being
used is drm_crtc.state, which is only really sensible to use outside of an
atomic modeset.
So, add some helpers to lookup the current crtc for a given outp from the
atomic state. Then, convert most of the code in dispnv50/disp.c to use said
new helper, along with the relevant DRM atomic helpers for retrieving the
new encoder/crtc combinations for a new atomic state.
Note that we don't get rid of the nouveau_encoder.crtc field entirely for
three reasons:
- Legacy modesetting for pre-nv50 still uses it
- It doesn't cause any locking issues
- We need it for the HDA callbacks, as grabbing atomic modesetting locks in
those would be a mess.
Signed-off-by: Lyude Paul <lyude@...hat.com>
---
drivers/gpu/drm/nouveau/dispnv50/disp.c | 59 ++++++++++++++++---------
1 file changed, 38 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 2c0749fac9dc..63fff3988f19 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -449,6 +449,22 @@ nv50_outp_get_old_connector(struct drm_atomic_state *state, struct nouveau_encod
return NULL;
}
+static struct nouveau_crtc *
+nv50_outp_get_new_crtc(const struct drm_atomic_state *state, const struct nouveau_encoder *outp)
+{
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *crtc_state;
+ const u32 mask = drm_encoder_mask(&outp->base.base);
+ int i;
+
+ for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
+ if (crtc_state->encoder_mask & mask)
+ return nouveau_crtc(crtc);
+ }
+
+ return NULL;
+}
+
/******************************************************************************
* DAC
*****************************************************************************/
@@ -468,8 +484,9 @@ static void
nv50_dac_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *state)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
- struct nv50_head_atom *asyh = nv50_head_atom(nv_crtc->base.state);
+ struct nouveau_crtc *nv_crtc = nv50_outp_get_new_crtc(state, nv_encoder);
+ struct nv50_head_atom *asyh =
+ nv50_head_atom(drm_atomic_get_new_crtc_state(state, &nv_crtc->base));
struct nv50_core *core = nv50_disp(encoder->dev)->core;
u32 ctrl = 0;
@@ -490,7 +507,7 @@ nv50_dac_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta
core->func->dac->ctrl(core, nv_encoder->or, ctrl, asyh);
asyh->or.depth = 0;
- nv_encoder->crtc = encoder->crtc;
+ nv_encoder->crtc = &nv_crtc->base;
}
static enum drm_connector_status
@@ -719,13 +736,12 @@ nv50_audio_disable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc)
}
static void
-nv50_audio_enable(struct drm_encoder *encoder, struct drm_atomic_state *state,
+nv50_audio_enable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc,
+ struct nouveau_connector *nv_connector, struct drm_atomic_state *state,
struct drm_display_mode *mode)
{
struct nouveau_drm *drm = nouveau_drm(encoder->dev);
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
- struct nouveau_connector *nv_connector;
struct nv50_disp *disp = nv50_disp(encoder->dev);
struct __packed {
struct {
@@ -741,7 +757,6 @@ nv50_audio_enable(struct drm_encoder *encoder, struct drm_atomic_state *state,
(0x0100 << nv_crtc->index),
};
- nv_connector = nv50_outp_get_new_connector(state, nv_encoder);
if (!drm_detect_monitor_audio(nv_connector->edid))
return;
@@ -778,12 +793,12 @@ nv50_hdmi_disable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc)
}
static void
-nv50_hdmi_enable(struct drm_encoder *encoder, struct drm_atomic_state *state,
+nv50_hdmi_enable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc,
+ struct nouveau_connector *nv_connector, struct drm_atomic_state *state,
struct drm_display_mode *mode)
{
struct nouveau_drm *drm = nouveau_drm(encoder->dev);
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
struct nv50_disp *disp = nv50_disp(encoder->dev);
struct {
struct nv50_disp_mthd_v1 base;
@@ -798,7 +813,6 @@ nv50_hdmi_enable(struct drm_encoder *encoder, struct drm_atomic_state *state,
.pwr.state = 1,
.pwr.rekey = 56, /* binary driver, and tegra, constant */
};
- struct nouveau_connector *nv_connector;
struct drm_hdmi_info *hdmi;
u32 max_ac_packet;
union hdmi_infoframe avi_frame;
@@ -808,7 +822,6 @@ nv50_hdmi_enable(struct drm_encoder *encoder, struct drm_atomic_state *state,
int ret;
int size;
- nv_connector = nv50_outp_get_new_connector(state, nv_encoder);
if (!drm_detect_hdmi_monitor(nv_connector->edid))
return;
@@ -854,7 +867,7 @@ nv50_hdmi_enable(struct drm_encoder *encoder, struct drm_atomic_state *state,
+ args.pwr.vendor_infoframe_length;
nvif_mthd(&disp->disp->object, 0, &args, size);
- nv50_audio_enable(encoder, state, mode);
+ nv50_audio_enable(encoder, nv_crtc, nv_connector, state, mode);
/* If SCDC is supported by the downstream monitor, update
* divider / scrambling settings to what we programmed above.
@@ -895,6 +908,7 @@ struct nv50_mstc {
struct nv50_msto {
struct drm_encoder encoder;
+ /* head is statically assigned on msto creation */
struct nv50_head *head;
struct nv50_mstc *mstc;
bool disabled;
@@ -1055,9 +1069,10 @@ nv50_dp_bpc_to_depth(unsigned int bpc)
static void
nv50_msto_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *state)
{
- struct nv50_head *head = nv50_head(encoder->crtc);
- struct nv50_head_atom *asyh = nv50_head_atom(head->base.base.state);
struct nv50_msto *msto = nv50_msto(encoder);
+ struct nv50_head *head = msto->head;
+ struct nv50_head_atom *asyh =
+ nv50_head_atom(drm_atomic_get_new_crtc_state(state, &head->base.base));
struct nv50_mstc *mstc = NULL;
struct nv50_mstm *mstm = NULL;
struct drm_connector *connector;
@@ -1640,8 +1655,9 @@ static void
nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *state)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
- struct nv50_head_atom *asyh = nv50_head_atom(nv_crtc->base.state);
+ struct nouveau_crtc *nv_crtc = nv50_outp_get_new_crtc(state, nv_encoder);
+ struct nv50_head_atom *asyh =
+ nv50_head_atom(drm_atomic_get_new_crtc_state(state, &nv_crtc->base));
struct drm_display_mode *mode = &asyh->state.adjusted_mode;
struct {
struct nv50_disp_mthd_v1 base;
@@ -1662,7 +1678,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta
u8 depth = NV837D_SOR_SET_CONTROL_PIXEL_DEPTH_DEFAULT;
nv_connector = nv50_outp_get_new_connector(state, nv_encoder);
- nv_encoder->crtc = encoder->crtc;
+ nv_encoder->crtc = &nv_crtc->base;
if ((disp->disp->object.oclass == GT214_DISP ||
disp->disp->object.oclass >= GF110_DISP) &&
@@ -1688,7 +1704,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta
proto = NV507D_SOR_SET_CONTROL_PROTOCOL_SINGLE_TMDS_B;
}
- nv50_hdmi_enable(&nv_encoder->base.base, state, mode);
+ nv50_hdmi_enable(&nv_encoder->base.base, nv_crtc, nv_connector, state, mode);
break;
case DCB_OUTPUT_LVDS:
proto = NV507D_SOR_SET_CONTROL_PROTOCOL_LVDS_CUSTOM;
@@ -1729,7 +1745,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta
else
proto = NV887D_SOR_SET_CONTROL_PROTOCOL_DP_B;
- nv50_audio_enable(encoder, state, mode);
+ nv50_audio_enable(encoder, nv_crtc, nv_connector, state, mode);
break;
default:
BUG();
@@ -1879,8 +1895,9 @@ static void
nv50_pior_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *state)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
- struct nv50_head_atom *asyh = nv50_head_atom(nv_crtc->base.state);
+ struct nouveau_crtc *nv_crtc = nv50_outp_get_new_crtc(state, nv_encoder);
+ struct nv50_head_atom *asyh =
+ nv50_head_atom(drm_atomic_get_new_crtc_state(state, &nv_crtc->base));
struct nv50_core *core = nv50_disp(encoder->dev)->core;
u32 ctrl = 0;
--
2.28.0
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