1 files changed, 511 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.c b/drivers/gpu/drm/nouveau/dispnv50/head.c
new file mode 100644
index 000000000000..4f57e5379796
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/dispnv50/head.c
@@ -0,0 +1,511 @@
+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "head.h"
+#include "base.h"
+#include "core.h"
+#include "curs.h"
+#include "ovly.h"
+
+#include <nvif/class.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include "nouveau_connector.h"
+void
+nv50_head_flush_clr(struct nv50_head *head,
+		    struct nv50_head_atom *asyh, bool flush)
+{
+	union nv50_head_atom_mask clr = {
+		.mask = asyh->clr.mask & ~(flush ? 0 : asyh->set.mask),
+	};
+	if (clr.olut) head->func->olut_clr(head);
+	if (clr.core) head->func->core_clr(head);
+	if (clr.curs) head->func->curs_clr(head);
+}
+
+void
+nv50_head_flush_set(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	if (asyh->set.view   ) head->func->view    (head, asyh);
+	if (asyh->set.mode   ) head->func->mode    (head, asyh);
+	if (asyh->set.core   ) head->func->core_set(head, asyh);
+	if (asyh->set.olut   ) {
+		asyh->olut.offset = nv50_lut_load(&head->olut,
+						  asyh->olut.mode <= 1,
+						  asyh->olut.buffer,
+						  asyh->state.gamma_lut);
+		head->func->olut_set(head, asyh);
+	}
+	if (asyh->set.curs   ) head->func->curs_set(head, asyh);
+	if (asyh->set.base   ) head->func->base    (head, asyh);
+	if (asyh->set.ovly   ) head->func->ovly    (head, asyh);
+	if (asyh->set.dither ) head->func->dither  (head, asyh);
+	if (asyh->set.procamp) head->func->procamp (head, asyh);
+	if (asyh->set.or     ) head->func->or      (head, asyh);
+}
+
+static void
+nv50_head_atomic_check_procamp(struct nv50_head_atom *armh,
+			       struct nv50_head_atom *asyh,
+			       struct nouveau_conn_atom *asyc)
+{
+	const int vib = asyc->procamp.color_vibrance - 100;
+	const int hue = asyc->procamp.vibrant_hue - 90;
+	const int adj = (vib > 0) ? 50 : 0;
+	asyh->procamp.sat.cos = ((vib * 2047 + adj) / 100) & 0xfff;
+	asyh->procamp.sat.sin = ((hue * 2047) / 100) & 0xfff;
+	asyh->set.procamp = true;
+}
+
+static void
+nv50_head_atomic_check_dither(struct nv50_head_atom *armh,
+			      struct nv50_head_atom *asyh,
+			      struct nouveau_conn_atom *asyc)
+{
+	struct drm_connector *connector = asyc->state.connector;
+	u32 mode = 0x00;
+
+	if (asyc->dither.mode == DITHERING_MODE_AUTO) {
+		if (asyh->base.depth > connector->display_info.bpc * 3)
+			mode = DITHERING_MODE_DYNAMIC2X2;
+	} else {
+		mode = asyc->dither.mode;
+	}
+
+	if (asyc->dither.depth == DITHERING_DEPTH_AUTO) {
+		if (connector->display_info.bpc >= 8)
+			mode |= DITHERING_DEPTH_8BPC;
+	} else {
+		mode |= asyc->dither.depth;
+	}
+
+	asyh->dither.enable = mode;
+	asyh->dither.bits = mode >> 1;
+	asyh->dither.mode = mode >> 3;
+	asyh->set.dither = true;
+}
+
+static void
+nv50_head_atomic_check_view(struct nv50_head_atom *armh,
+			    struct nv50_head_atom *asyh,
+			    struct nouveau_conn_atom *asyc)
+{
+	struct drm_connector *connector = asyc->state.connector;
+	struct drm_display_mode *omode = &asyh->state.adjusted_mode;
+	struct drm_display_mode *umode = &asyh->state.mode;
+	int mode = asyc->scaler.mode;
+	struct edid *edid;
+	int umode_vdisplay, omode_hdisplay, omode_vdisplay;
+
+	if (connector->edid_blob_ptr)
+		edid = (struct edid *)connector->edid_blob_ptr->data;
+	else
+		edid = NULL;
+
+	if (!asyc->scaler.full) {
+		if (mode == DRM_MODE_SCALE_NONE)
+			omode = umode;
+	} else {
+		/* Non-EDID LVDS/eDP mode. */
+		mode = DRM_MODE_SCALE_FULLSCREEN;
+	}
+
+	/* For the user-specified mode, we must ignore doublescan and
+	 * the like, but honor frame packing.
+	 */
+	umode_vdisplay = umode->vdisplay;
+	if ((umode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
+		umode_vdisplay += umode->vtotal;
+	asyh->view.iW = umode->hdisplay;
+	asyh->view.iH = umode_vdisplay;
+	/* For the output mode, we can just use the stock helper. */
+	drm_mode_get_hv_timing(omode, &omode_hdisplay, &omode_vdisplay);
+	asyh->view.oW = omode_hdisplay;
+	asyh->view.oH = omode_vdisplay;
+
+	/* Add overscan compensation if necessary, will keep the aspect
+	 * ratio the same as the backend mode unless overridden by the
+	 * user setting both hborder and vborder properties.
+	 */
+	if ((asyc->scaler.underscan.mode == UNDERSCAN_ON ||
+	    (asyc->scaler.underscan.mode == UNDERSCAN_AUTO &&
+	     drm_detect_hdmi_monitor(edid)))) {
+		u32 bX = asyc->scaler.underscan.hborder;
+		u32 bY = asyc->scaler.underscan.vborder;
+		u32 r = (asyh->view.oH << 19) / asyh->view.oW;
+
+		if (bX) {
+			asyh->view.oW -= (bX * 2);
+			if (bY) asyh->view.oH -= (bY * 2);
+			else    asyh->view.oH  = ((asyh->view.oW * r) + (r / 2)) >> 19;
+		} else {
+			asyh->view.oW -= (asyh->view.oW >> 4) + 32;
+			if (bY) asyh->view.oH -= (bY * 2);
+			else    asyh->view.oH  = ((asyh->view.oW * r) + (r / 2)) >> 19;
+		}
+	}
+
+	/* Handle CENTER/ASPECT scaling, taking into account the areas
+	 * removed already for overscan compensation.
+	 */
+	switch (mode) {
+	case DRM_MODE_SCALE_CENTER:
+		asyh->view.oW = min((u16)umode->hdisplay, asyh->view.oW);
+		asyh->view.oH = min((u16)umode_vdisplay, asyh->view.oH);
+		/* fall-through */
+	case DRM_MODE_SCALE_ASPECT:
+		if (asyh->view.oH < asyh->view.oW) {
+			u32 r = (asyh->view.iW << 19) / asyh->view.iH;
+			asyh->view.oW = ((asyh->view.oH * r) + (r / 2)) >> 19;
+		} else {
+			u32 r = (asyh->view.iH << 19) / asyh->view.iW;
+			asyh->view.oH = ((asyh->view.oW * r) + (r / 2)) >> 19;
+		}
+		break;
+	default:
+		break;
+	}
+
+	asyh->set.view = true;
+}
+
+static int
+nv50_head_atomic_check_lut(struct nv50_head *head,
+			   struct nv50_head_atom *asyh)
+{
+	struct nv50_disp *disp = nv50_disp(head->base.base.dev);
+	struct drm_property_blob *olut = asyh->state.gamma_lut;
+
+	/* Determine whether core output LUT should be enabled. */
+	if (olut) {
+		/* Check if any window(s) have stolen the core output LUT
+		 * to as an input LUT for legacy gamma + I8 colour format.
+		 */
+		if (asyh->wndw.olut) {
+			/* If any window has stolen the core output LUT,
+			 * all of them must.
+			 */
+			if (asyh->wndw.olut != asyh->wndw.mask)
+				return -EINVAL;
+			olut = NULL;
+		}
+	}
+
+	if (!olut) {
+		asyh->olut.handle = 0;
+		return 0;
+	}
+
+	asyh->olut.handle = disp->core->chan.vram.handle;
+	asyh->olut.buffer = !asyh->olut.buffer;
+	head->func->olut(head, asyh);
+	return 0;
+}
+
+static void
+nv50_head_atomic_check_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	struct drm_display_mode *mode = &asyh->state.adjusted_mode;
+	struct nv50_head_mode *m = &asyh->mode;
+	u32 blankus;
+
+	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V | CRTC_STEREO_DOUBLE);
+
+	/*
+	 * DRM modes are defined in terms of a repeating interval
+	 * starting with the active display area.  The hardware modes
+	 * are defined in terms of a repeating interval starting one
+	 * unit (pixel or line) into the sync pulse.  So, add bias.
+	 */
+
+	m->h.active = mode->crtc_htotal;
+	m->h.synce  = mode->crtc_hsync_end - mode->crtc_hsync_start - 1;
+	m->h.blanke = mode->crtc_hblank_end - mode->crtc_hsync_start - 1;
+	m->h.blanks = m->h.blanke + mode->crtc_hdisplay;
+
+	m->v.active = mode->crtc_vtotal;
+	m->v.synce  = mode->crtc_vsync_end - mode->crtc_vsync_start - 1;
+	m->v.blanke = mode->crtc_vblank_end - mode->crtc_vsync_start - 1;
+	m->v.blanks = m->v.blanke + mode->crtc_vdisplay;
+
+	/*XXX: Safe underestimate, even "0" works */
+	blankus = (m->v.active - mode->crtc_vdisplay - 2) * m->h.active;
+	blankus *= 1000;
+	blankus /= mode->crtc_clock;
+	m->v.blankus = blankus;
+
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
+		m->v.blank2e =  m->v.active + m->v.blanke;
+		m->v.blank2s =  m->v.blank2e + mode->crtc_vdisplay;
+		m->v.active  = (m->v.active * 2) + 1;
+		m->interlace = true;
+	} else {
+		m->v.blank2e = 0;
+		m->v.blank2s = 1;
+		m->interlace = false;
+	}
+	m->clock = mode->crtc_clock;
+
+	asyh->or.nhsync = !!(mode->flags & DRM_MODE_FLAG_NHSYNC);
+	asyh->or.nvsync = !!(mode->flags & DRM_MODE_FLAG_NVSYNC);
+	asyh->set.or = head->func->or != NULL;
+	asyh->set.mode = true;
+}
+
+static int
+nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state)
+{
+	struct nouveau_drm *drm = nouveau_drm(crtc->dev);
+	struct nv50_head *head = nv50_head(crtc);
+	struct nv50_head_atom *armh = nv50_head_atom(crtc->state);
+	struct nv50_head_atom *asyh = nv50_head_atom(state);
+	struct nouveau_conn_atom *asyc = NULL;
+	struct drm_connector_state *conns;
+	struct drm_connector *conn;
+	int i;
+
+	NV_ATOMIC(drm, "%s atomic_check %d\n", crtc->name, asyh->state.active);
+	if (asyh->state.active) {
+		for_each_new_connector_in_state(asyh->state.state, conn, conns, i) {
+			if (conns->crtc == crtc) {
+				asyc = nouveau_conn_atom(conns);
+				break;
+			}
+		}
+
+		if (armh->state.active) {
+			if (asyc) {
+				if (asyh->state.mode_changed)
+					asyc->set.scaler = true;
+				if (armh->base.depth != asyh->base.depth)
+					asyc->set.dither = true;
+			}
+		} else {
+			if (asyc)
+				asyc->set.mask = ~0;
+			asyh->set.mask = ~0;
+			asyh->set.or = head->func->or != NULL;
+		}
+
+		if (asyh->state.mode_changed)
+			nv50_head_atomic_check_mode(head, asyh);
+
+		if (asyh->state.color_mgmt_changed ||
+		    memcmp(&armh->wndw, &asyh->wndw, sizeof(asyh->wndw))) {
+			int ret = nv50_head_atomic_check_lut(head, asyh);
+			if (ret)
+				return ret;
+
+			asyh->olut.visible = asyh->olut.handle != 0;
+		}
+
+		if (asyc) {
+			if (asyc->set.scaler)
+				nv50_head_atomic_check_view(armh, asyh, asyc);
+			if (asyc->set.dither)
+				nv50_head_atomic_check_dither(armh, asyh, asyc);
+			if (asyc->set.procamp)
+				nv50_head_atomic_check_procamp(armh, asyh, asyc);
+		}
+
+		if (head->func->core_calc) {
+			head->func->core_calc(head, asyh);
+			if (!asyh->core.visible)
+				asyh->olut.visible = false;
+		}
+
+		asyh->set.base = armh->base.cpp != asyh->base.cpp;
+		asyh->set.ovly = armh->ovly.cpp != asyh->ovly.cpp;
+	} else {
+		asyh->olut.visible = false;
+		asyh->core.visible = false;
+		asyh->curs.visible = false;
+		asyh->base.cpp = 0;
+		asyh->ovly.cpp = 0;
+	}
+
+	if (!drm_atomic_crtc_needs_modeset(&asyh->state)) {
+		if (asyh->core.visible) {
+			if (memcmp(&armh->core, &asyh->core, sizeof(asyh->core)))
+				asyh->set.core = true;
+		} else
+		if (armh->core.visible) {
+			asyh->clr.core = true;
+		}
+
+		if (asyh->curs.visible) {
+			if (memcmp(&armh->curs, &asyh->curs, sizeof(asyh->curs)))
+				asyh->set.curs = true;
+		} else
+		if (armh->curs.visible) {
+			asyh->clr.curs = true;
+		}
+
+		if (asyh->olut.visible) {
+			if (memcmp(&armh->olut, &asyh->olut, sizeof(asyh->olut)))
+				asyh->set.olut = true;
+		} else
+		if (armh->olut.visible) {
+			asyh->clr.olut = true;
+		}
+	} else {
+		asyh->clr.olut = armh->olut.visible;
+		asyh->clr.core = armh->core.visible;
+		asyh->clr.curs = armh->curs.visible;
+		asyh->set.olut = asyh->olut.visible;
+		asyh->set.core = asyh->core.visible;
+		asyh->set.curs = asyh->curs.visible;
+	}
+
+	if (asyh->clr.mask || asyh->set.mask)
+		nv50_atom(asyh->state.state)->lock_core = true;
+	return 0;
+}
+
+static const struct drm_crtc_helper_funcs
+nv50_head_help = {
+	.atomic_check = nv50_head_atomic_check,
+};
+
+static void
+nv50_head_atomic_destroy_state(struct drm_crtc *crtc,
+			       struct drm_crtc_state *state)
+{
+	struct nv50_head_atom *asyh = nv50_head_atom(state);
+	__drm_atomic_helper_crtc_destroy_state(&asyh->state);
+	kfree(asyh);
+}
+
+static struct drm_crtc_state *
+nv50_head_atomic_duplicate_state(struct drm_crtc *crtc)
+{
+	struct nv50_head_atom *armh = nv50_head_atom(crtc->state);
+	struct nv50_head_atom *asyh;
+	if (!(asyh = kmalloc(sizeof(*asyh), GFP_KERNEL)))
+		return NULL;
+	__drm_atomic_helper_crtc_duplicate_state(crtc, &asyh->state);
+	asyh->wndw = armh->wndw;
+	asyh->view = armh->view;
+	asyh->mode = armh->mode;
+	asyh->olut = armh->olut;
+	asyh->core = armh->core;
+	asyh->curs = armh->curs;
+	asyh->base = armh->base;
+	asyh->ovly = armh->ovly;
+	asyh->dither = armh->dither;
+	asyh->procamp = armh->procamp;
+	asyh->clr.mask = 0;
+	asyh->set.mask = 0;
+	return &asyh->state;
+}
+
+static void
+__drm_atomic_helper_crtc_reset(struct drm_crtc *crtc,
+			       struct drm_crtc_state *state)
+{
+	if (crtc->state)
+		crtc->funcs->atomic_destroy_state(crtc, crtc->state);
+	crtc->state = state;
+	crtc->state->crtc = crtc;
+}
+
+static void
+nv50_head_reset(struct drm_crtc *crtc)
+{
+	struct nv50_head_atom *asyh;
+
+	if (WARN_ON(!(asyh = kzalloc(sizeof(*asyh), GFP_KERNEL))))
+		return;
+
+	__drm_atomic_helper_crtc_reset(crtc, &asyh->state);
+}
+
+static void
+nv50_head_destroy(struct drm_crtc *crtc)
+{
+	struct nv50_head *head = nv50_head(crtc);
+	nv50_lut_fini(&head->olut);
+	drm_crtc_cleanup(crtc);
+	kfree(head);
+}
+
+static const struct drm_crtc_funcs
+nv50_head_func = {
+	.reset = nv50_head_reset,
+	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+	.destroy = nv50_head_destroy,
+	.set_config = drm_atomic_helper_set_config,
+	.page_flip = drm_atomic_helper_page_flip,
+	.atomic_duplicate_state = nv50_head_atomic_duplicate_state,
+	.atomic_destroy_state = nv50_head_atomic_destroy_state,
+};
+
+int
+nv50_head_create(struct drm_device *dev, int index)
+{
+	struct nouveau_drm *drm = nouveau_drm(dev);
+	struct nv50_disp *disp = nv50_disp(dev);
+	struct nv50_head *head;
+	struct nv50_wndw *curs, *wndw;
+	struct drm_crtc *crtc;
+	int ret;
+
+	head = kzalloc(sizeof(*head), GFP_KERNEL);
+	if (!head)
+		return -ENOMEM;
+
+	head->func = disp->core->func->head;
+	head->base.index = index;
+
+	if (disp->disp->object.oclass < GV100_DISP) {
+		ret = nv50_ovly_new(drm, head->base.index, &wndw);
+		ret = nv50_base_new(drm, head->base.index, &wndw);
+	} else {
+		ret = nv50_wndw_new(drm, DRM_PLANE_TYPE_OVERLAY,
+				    head->base.index * 2 + 1, &wndw);
+		ret = nv50_wndw_new(drm, DRM_PLANE_TYPE_PRIMARY,
+				    head->base.index * 2 + 0, &wndw);
+	}
+	if (ret == 0)
+		ret = nv50_curs_new(drm, head->base.index, &curs);
+	if (ret) {
+		kfree(head);
+		return ret;
+	}
+
+	crtc = &head->base.base;
+	drm_crtc_init_with_planes(dev, crtc, &wndw->plane, &curs->plane,
+				  &nv50_head_func, "head-%d", head->base.index);
+	drm_crtc_helper_add(crtc, &nv50_head_help);
+	drm_mode_crtc_set_gamma_size(crtc, 256);
+
+	if (head->func->olut_set) {
+		ret = nv50_lut_init(disp, &drm->client.mmu, &head->olut);
+		if (ret)
+			goto out;
+	}
+
+out:
+	if (ret)
+		nv50_head_destroy(crtc);
+	return ret;
+}