From 1b38cf6b03e92eac993f49419904a3e441d647e4 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 13 Nov 2020 19:14:15 -0500 Subject: [PATCH] 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 Signed-off-by: Ben Skeggs --- 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 65c555d..205d30d 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -463,6 +463,22 @@ 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 *****************************************************************************/ @@ -482,8 +498,9 @@ 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; @@ -504,7 +521,7 @@ 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 @@ -733,13 +750,12 @@ 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 { @@ -755,7 +771,6 @@ 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; @@ -792,12 +807,12 @@ 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; @@ -812,7 +827,6 @@ 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; @@ -822,7 +836,6 @@ 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; @@ -868,7 +881,7 @@ 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. @@ -909,6 +922,7 @@ 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; @@ -1069,9 +1083,10 @@ 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; @@ -1656,8 +1671,9 @@ 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; @@ -1678,7 +1694,7 @@ 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) && @@ -1704,7 +1720,7 @@ 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; @@ -1745,7 +1761,7 @@ 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(); @@ -1896,8 +1912,9 @@ 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; -- 2.7.4