1 files changed, 328 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
new file mode 100644
index 000000000000..83549702bbc1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
@@ -0,0 +1,328 @@
+/*
+ * Copyright 2012 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.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "rootnv50.h"
+#include "dmacnv50.h"
+
+#include <core/client.h>
+#include <core/ramht.h>
+#include <subdev/timer.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+int
+nv50_disp_root_scanoutpos(NV50_DISP_MTHD_V0)
+{
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+	const u32 blanke = nvkm_rd32(device, 0x610aec + (head * 0x540));
+	const u32 blanks = nvkm_rd32(device, 0x610af4 + (head * 0x540));
+	const u32 total  = nvkm_rd32(device, 0x610afc + (head * 0x540));
+	union {
+		struct nv04_disp_scanoutpos_v0 v0;
+	} *args = data;
+	int ret;
+
+	nvif_ioctl(object, "disp scanoutpos size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, false)) {
+		nvif_ioctl(object, "disp scanoutpos vers %d\n",
+			   args->v0.version);
+		args->v0.vblanke = (blanke & 0xffff0000) >> 16;
+		args->v0.hblanke = (blanke & 0x0000ffff);
+		args->v0.vblanks = (blanks & 0xffff0000) >> 16;
+		args->v0.hblanks = (blanks & 0x0000ffff);
+		args->v0.vtotal  = ( total & 0xffff0000) >> 16;
+		args->v0.htotal  = ( total & 0x0000ffff);
+		args->v0.time[0] = ktime_to_ns(ktime_get());
+		args->v0.vline = /* vline read locks hline */
+			nvkm_rd32(device, 0x616340 + (head * 0x800)) & 0xffff;
+		args->v0.time[1] = ktime_to_ns(ktime_get());
+		args->v0.hline =
+			nvkm_rd32(device, 0x616344 + (head * 0x800)) & 0xffff;
+	} else
+		return ret;
+
+	return 0;
+}
+
+int
+nv50_disp_root_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+{
+	const struct nv50_disp_impl *impl = (void *)nv_oclass(object->engine);
+	union {
+		struct nv50_disp_mthd_v0 v0;
+		struct nv50_disp_mthd_v1 v1;
+	} *args = data;
+	struct nv50_disp *disp = (void *)object->engine;
+	struct nvkm_output *outp = NULL;
+	struct nvkm_output *temp;
+	u16 type, mask = 0;
+	int head, ret;
+
+	if (mthd != NV50_DISP_MTHD)
+		return -EINVAL;
+
+	nvif_ioctl(object, "disp mthd size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, true)) {
+		nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n",
+			   args->v0.version, args->v0.method, args->v0.head);
+		mthd = args->v0.method;
+		head = args->v0.head;
+	} else
+	if (nvif_unpack(args->v1, 1, 1, true)) {
+		nvif_ioctl(object, "disp mthd vers %d mthd %02x "
+				   "type %04x mask %04x\n",
+			   args->v1.version, args->v1.method,
+			   args->v1.hasht, args->v1.hashm);
+		mthd = args->v1.method;
+		type = args->v1.hasht;
+		mask = args->v1.hashm;
+		head = ffs((mask >> 8) & 0x0f) - 1;
+	} else
+		return ret;
+
+	if (head < 0 || head >= disp->head.nr)
+		return -ENXIO;
+
+	if (mask) {
+		list_for_each_entry(temp, &disp->base.outp, head) {
+			if ((temp->info.hasht         == type) &&
+			    (temp->info.hashm & mask) == mask) {
+				outp = temp;
+				break;
+			}
+		}
+		if (outp == NULL)
+			return -ENXIO;
+	}
+
+	switch (mthd) {
+	case NV50_DISP_SCANOUTPOS:
+		return impl->head.scanoutpos(object, disp, data, size, head);
+	default:
+		break;
+	}
+
+	switch (mthd * !!outp) {
+	case NV50_DISP_MTHD_V1_DAC_PWR:
+		return disp->dac.power(object, disp, data, size, head, outp);
+	case NV50_DISP_MTHD_V1_DAC_LOAD:
+		return disp->dac.sense(object, disp, data, size, head, outp);
+	case NV50_DISP_MTHD_V1_SOR_PWR:
+		return disp->sor.power(object, disp, data, size, head, outp);
+	case NV50_DISP_MTHD_V1_SOR_HDA_ELD:
+		if (!disp->sor.hda_eld)
+			return -ENODEV;
+		return disp->sor.hda_eld(object, disp, data, size, head, outp);
+	case NV50_DISP_MTHD_V1_SOR_HDMI_PWR:
+		if (!disp->sor.hdmi)
+			return -ENODEV;
+		return disp->sor.hdmi(object, disp, data, size, head, outp);
+	case NV50_DISP_MTHD_V1_SOR_LVDS_SCRIPT: {
+		union {
+			struct nv50_disp_sor_lvds_script_v0 v0;
+		} *args = data;
+		nvif_ioctl(object, "disp sor lvds script size %d\n", size);
+		if (nvif_unpack(args->v0, 0, 0, false)) {
+			nvif_ioctl(object, "disp sor lvds script "
+					   "vers %d name %04x\n",
+				   args->v0.version, args->v0.script);
+			disp->sor.lvdsconf = args->v0.script;
+			return 0;
+		} else
+			return ret;
+	}
+		break;
+	case NV50_DISP_MTHD_V1_SOR_DP_PWR: {
+		struct nvkm_output_dp *outpdp = nvkm_output_dp(outp);
+		union {
+			struct nv50_disp_sor_dp_pwr_v0 v0;
+		} *args = data;
+		nvif_ioctl(object, "disp sor dp pwr size %d\n", size);
+		if (nvif_unpack(args->v0, 0, 0, false)) {
+			nvif_ioctl(object, "disp sor dp pwr vers %d state %d\n",
+				   args->v0.version, args->v0.state);
+			if (args->v0.state == 0) {
+				nvkm_notify_put(&outpdp->irq);
+				outpdp->func->lnk_pwr(outpdp, 0);
+				atomic_set(&outpdp->lt.done, 0);
+				return 0;
+			} else
+			if (args->v0.state != 0) {
+				nvkm_output_dp_train(&outpdp->base, 0, true);
+				return 0;
+			}
+		} else
+			return ret;
+	}
+		break;
+	case NV50_DISP_MTHD_V1_PIOR_PWR:
+		if (!disp->pior.power)
+			return -ENODEV;
+		return disp->pior.power(object, disp, data, size, head, outp);
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+int
+nv50_disp_root_ctor(struct nvkm_object *parent,
+		    struct nvkm_object *engine,
+		    struct nvkm_oclass *oclass, void *data, u32 size,
+		    struct nvkm_object **pobject)
+{
+	struct nv50_disp *disp = (void *)engine;
+	struct nv50_disp_root *root;
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+	struct nvkm_gpuobj *instmem = (void *)parent;
+	int ret;
+
+	ret = nvkm_parent_create(parent, engine, oclass, 0,
+				 disp->sclass, 0, &root);
+	*pobject = nv_object(root);
+	if (ret)
+		return ret;
+
+
+	return nvkm_ramht_new(device, 0x1000, 0, instmem, &root->ramht);
+}
+
+void
+nv50_disp_root_dtor(struct nvkm_object *object)
+{
+	struct nv50_disp_root *root = (void *)object;
+	nvkm_ramht_del(&root->ramht);
+	nvkm_parent_destroy(&root->base);
+}
+
+static int
+nv50_disp_root_init(struct nvkm_object *object)
+{
+	struct nv50_disp *disp = (void *)object->engine;
+	struct nv50_disp_root *root = (void *)object;
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+	int ret, i;
+	u32 tmp;
+
+	ret = nvkm_parent_init(&root->base);
+	if (ret)
+		return ret;
+
+	/* The below segments of code copying values from one register to
+	 * another appear to inform EVO of the display capabilities or
+	 * something similar.  NFI what the 0x614004 caps are for..
+	 */
+	tmp = nvkm_rd32(device, 0x614004);
+	nvkm_wr32(device, 0x610184, tmp);
+
+	/* ... CRTC caps */
+	for (i = 0; i < disp->head.nr; i++) {
+		tmp = nvkm_rd32(device, 0x616100 + (i * 0x800));
+		nvkm_wr32(device, 0x610190 + (i * 0x10), tmp);
+		tmp = nvkm_rd32(device, 0x616104 + (i * 0x800));
+		nvkm_wr32(device, 0x610194 + (i * 0x10), tmp);
+		tmp = nvkm_rd32(device, 0x616108 + (i * 0x800));
+		nvkm_wr32(device, 0x610198 + (i * 0x10), tmp);
+		tmp = nvkm_rd32(device, 0x61610c + (i * 0x800));
+		nvkm_wr32(device, 0x61019c + (i * 0x10), tmp);
+	}
+
+	/* ... DAC caps */
+	for (i = 0; i < disp->dac.nr; i++) {
+		tmp = nvkm_rd32(device, 0x61a000 + (i * 0x800));
+		nvkm_wr32(device, 0x6101d0 + (i * 0x04), tmp);
+	}
+
+	/* ... SOR caps */
+	for (i = 0; i < disp->sor.nr; i++) {
+		tmp = nvkm_rd32(device, 0x61c000 + (i * 0x800));
+		nvkm_wr32(device, 0x6101e0 + (i * 0x04), tmp);
+	}
+
+	/* ... PIOR caps */
+	for (i = 0; i < disp->pior.nr; i++) {
+		tmp = nvkm_rd32(device, 0x61e000 + (i * 0x800));
+		nvkm_wr32(device, 0x6101f0 + (i * 0x04), tmp);
+	}
+
+	/* steal display away from vbios, or something like that */
+	if (nvkm_rd32(device, 0x610024) & 0x00000100) {
+		nvkm_wr32(device, 0x610024, 0x00000100);
+		nvkm_mask(device, 0x6194e8, 0x00000001, 0x00000000);
+		if (nvkm_msec(device, 2000,
+			if (!(nvkm_rd32(device, 0x6194e8) & 0x00000002))
+				break;
+		) < 0)
+			return -EBUSY;
+	}
+
+	/* point at display engine memory area (hash table, objects) */
+	nvkm_wr32(device, 0x610010, (root->ramht->gpuobj->addr >> 8) | 9);
+
+	/* enable supervisor interrupts, disable everything else */
+	nvkm_wr32(device, 0x61002c, 0x00000370);
+	nvkm_wr32(device, 0x610028, 0x00000000);
+	return 0;
+}
+
+static int
+nv50_disp_root_fini(struct nvkm_object *object, bool suspend)
+{
+	struct nv50_disp *disp = (void *)object->engine;
+	struct nv50_disp_root *root = (void *)object;
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+
+	/* disable all interrupts */
+	nvkm_wr32(device, 0x610024, 0x00000000);
+	nvkm_wr32(device, 0x610020, 0x00000000);
+
+	return nvkm_parent_fini(&root->base, suspend);
+}
+
+struct nvkm_ofuncs
+nv50_disp_root_ofuncs = {
+	.ctor = nv50_disp_root_ctor,
+	.dtor = nv50_disp_root_dtor,
+	.init = nv50_disp_root_init,
+	.fini = nv50_disp_root_fini,
+	.mthd = nv50_disp_root_mthd,
+	.ntfy = nvkm_disp_ntfy,
+};
+
+struct nvkm_oclass
+nv50_disp_root_oclass[] = {
+	{ NV50_DISP, &nv50_disp_root_ofuncs },
+	{}
+};
+
+struct nvkm_oclass
+nv50_disp_sclass[] = {
+	{ NV50_DISP_CORE_CHANNEL_DMA, &nv50_disp_core_ofuncs.base },
+	{ NV50_DISP_BASE_CHANNEL_DMA, &nv50_disp_base_ofuncs.base },
+	{ NV50_DISP_OVERLAY_CHANNEL_DMA, &nv50_disp_ovly_ofuncs.base },
+	{ NV50_DISP_OVERLAY, &nv50_disp_oimm_ofuncs.base },
+	{ NV50_DISP_CURSOR, &nv50_disp_curs_ofuncs.base },
+	{}
+};