drm/nouveau: implement devinit subdev, and new init table parser

v2:
- make sure not to execute display scripts unless resuming

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/Makefile

@@ -20,9 +20,12 @@ nouveau-y += core/core/subdev.o
 
 nouveau-y += core/subdev/bios/base.o
 nouveau-y += core/subdev/bios/bit.o
+nouveau-y += core/subdev/bios/conn.o
 nouveau-y += core/subdev/bios/dcb.o
+nouveau-y += core/subdev/bios/dp.o
 nouveau-y += core/subdev/bios/gpio.o
 nouveau-y += core/subdev/bios/i2c.o
+nouveau-y += core/subdev/bios/init.o
 nouveau-y += core/subdev/bios/pll.o
 nouveau-y += core/subdev/clock/nv04.o
 nouveau-y += core/subdev/clock/nv40.o
@@ -40,6 +43,13 @@ nouveau-y += core/subdev/device/nv40.o
 nouveau-y += core/subdev/device/nv50.o
 nouveau-y += core/subdev/device/nvc0.o
 nouveau-y += core/subdev/device/nve0.o
+nouveau-y += core/subdev/devinit/base.o
+nouveau-y += core/subdev/devinit/nv04.o
+nouveau-y += core/subdev/devinit/nv05.o
+nouveau-y += core/subdev/devinit/nv10.o
+nouveau-y += core/subdev/devinit/nv1a.o
+nouveau-y += core/subdev/devinit/nv20.o
+nouveau-y += core/subdev/devinit/nv50.o
 nouveau-y += core/subdev/fb/nv04.o
 nouveau-y += core/subdev/fb/nv10.o
 nouveau-y += core/subdev/fb/nv20.o

drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h

@@ -0,0 +1,27 @@
+#ifndef __NVBIOS_CONN_H__
+#define __NVBIOS_CONN_H__
+
+enum dcb_connector_type {
+	DCB_CONNECTOR_VGA = 0x00,
+	DCB_CONNECTOR_TV_0 = 0x10,
+	DCB_CONNECTOR_TV_1 = 0x11,
+	DCB_CONNECTOR_TV_3 = 0x13,
+	DCB_CONNECTOR_DVI_I = 0x30,
+	DCB_CONNECTOR_DVI_D = 0x31,
+	DCB_CONNECTOR_DMS59_0 = 0x38,
+	DCB_CONNECTOR_DMS59_1 = 0x39,
+	DCB_CONNECTOR_LVDS = 0x40,
+	DCB_CONNECTOR_LVDS_SPWG = 0x41,
+	DCB_CONNECTOR_DP = 0x46,
+	DCB_CONNECTOR_eDP = 0x47,
+	DCB_CONNECTOR_HDMI_0 = 0x60,
+	DCB_CONNECTOR_HDMI_1 = 0x61,
+	DCB_CONNECTOR_DMS59_DP0 = 0x64,
+	DCB_CONNECTOR_DMS59_DP1 = 0x65,
+	DCB_CONNECTOR_NONE = 0xff
+};
+
+u16 dcb_conntab(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
+u16 dcb_conn(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len);
+
+#endif

drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h

@@ -1,19 +1,90 @@
 #ifndef __NVBIOS_DCB_H__
 #define __NVBIOS_DCB_H__
 
+struct nouveau_bios;
+
 enum dcb_output_type {
 	DCB_OUTPUT_ANALOG	= 0x0,
 	DCB_OUTPUT_TV		= 0x1,
 	DCB_OUTPUT_TMDS		= 0x2,
 	DCB_OUTPUT_LVDS		= 0x3,
-	DCB_OUTPUT_DP		= 0x4,
+	DCB_OUTPUT_DP		= 0x6,
 	DCB_OUTPUT_EOL		= 0xe,
 	DCB_OUTPUT_UNUSED	= 0xf,
+	DCB_OUTPUT_ANY = -1,
+};
+
+struct dcb_output {
+	int index;	/* may not be raw dcb index if merging has happened */
+	enum dcb_output_type type;
+	uint8_t i2c_index;
+	uint8_t heads;
+	uint8_t connector;
+	uint8_t bus;
+	uint8_t location;
+	uint8_t or;
+	bool duallink_possible;
+	union {
+		struct sor_conf {
+			int link;
+		} sorconf;
+		struct {
+			int maxfreq;
+		} crtconf;
+		struct {
+			struct sor_conf sor;
+			bool use_straps_for_mode;
+			bool use_acpi_for_edid;
+			bool use_power_scripts;
+		} lvdsconf;
+		struct {
+			bool has_component_output;
+		} tvconf;
+		struct {
+			struct sor_conf sor;
+			int link_nr;
+			int link_bw;
+		} dpconf;
+		struct {
+			struct sor_conf sor;
+			int slave_addr;
+		} tmdsconf;
+	};
+	bool i2c_upper_default;
 };
 
 u16 dcb_table(struct nouveau_bios *, u8 *ver, u8 *hdr, u8 *ent, u8 *len);
 u16 dcb_outp(struct nouveau_bios *, u8 idx, u8 *ver, u8 *len);
 int dcb_outp_foreach(struct nouveau_bios *, void *data, int (*exec)
 		     (struct nouveau_bios *, void *, int index, u16 entry));
 
+
+/* BIT 'U'/'d' table encoder subtables have hashes matching them to
+ * a particular set of encoders.
+ *
+ * This function returns true if a particular DCB entry matches.
+ */
+static inline bool
+dcb_hash_match(struct dcb_output *dcb, u32 hash)
+{
+	if ((hash & 0x000000f0) != (dcb->location << 4))
+		return false;
+	if ((hash & 0x0000000f) != dcb->type)
+		return false;
+	if (!(hash & (dcb->or << 16)))
+		return false;
+
+	switch (dcb->type) {
+	case DCB_OUTPUT_TMDS:
+	case DCB_OUTPUT_LVDS:
+	case DCB_OUTPUT_DP:
+		if (hash & 0x00c00000) {
+			if (!(hash & (dcb->sorconf.link << 22)))
+				return false;
+		}
+	default:
+		return true;
+	}
+}
+
 #endif

drivers/gpu/drm/nouveau/core/include/subdev/bios/dp.h

@@ -0,0 +1,8 @@
+#ifndef __NVBIOS_DP_H__
+#define __NVBIOS_DP_H__
+
+u16 dp_table(struct nouveau_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
+u16 dp_outp(struct nouveau_bios *, u8 idx, u8 *ver, u8 *len);
+u16 dp_outp_match(struct nouveau_bios *, struct dcb_output *, u8 *ver, u8 *len);
+
+#endif

drivers/gpu/drm/nouveau/core/include/subdev/bios/init.h

@@ -0,0 +1,21 @@
+#ifndef __NVBIOS_INIT_H__
+#define __NVBIOS_INIT_H__
+
+struct nvbios_init {
+	struct nouveau_subdev *subdev;
+	struct nouveau_bios *bios;
+	u16 offset;
+	struct dcb_output *outp;
+	int crtc;
+
+	/* internal state used during parsing */
+	u8 execute;
+	u32 nested;
+	u16 repeat;
+	u16 repend;
+};
+
+int nvbios_exec(struct nvbios_init *);
+int nvbios_init(struct nouveau_subdev *, bool execute);
+
+#endif

drivers/gpu/drm/nouveau/core/include/subdev/devinit.h

@@ -0,0 +1,40 @@
+#ifndef __NOUVEAU_DEVINIT_H__
+#define __NOUVEAU_DEVINIT_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+
+struct nouveau_devinit {
+	struct nouveau_subdev base;
+	bool post;
+	void (*meminit)(struct nouveau_devinit *);
+};
+
+static inline struct nouveau_devinit *
+nouveau_devinit(void *obj)
+{
+	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_DEVINIT];
+}
+
+#define nouveau_devinit_create(p,e,o,d)                                        \
+	nouveau_devinit_create_((p), (e), (o), sizeof(**d), (void **)d)
+#define nouveau_devinit_destroy(p)                                             \
+	nouveau_subdev_destroy(&(p)->base)
+
+int nouveau_devinit_create_(struct nouveau_object *, struct nouveau_object *,
+			    struct nouveau_oclass *, int, void **);
+int nouveau_devinit_init(struct nouveau_devinit *);
+int nouveau_devinit_fini(struct nouveau_devinit *, bool suspend);
+
+extern struct nouveau_oclass nv04_devinit_oclass;
+extern struct nouveau_oclass nv05_devinit_oclass;
+extern struct nouveau_oclass nv10_devinit_oclass;
+extern struct nouveau_oclass nv1a_devinit_oclass;
+extern struct nouveau_oclass nv20_devinit_oclass;
+extern struct nouveau_oclass nv50_devinit_oclass;
+
+void nv04_devinit_dtor(struct nouveau_object *);
+int  nv04_devinit_init(struct nouveau_object *);
+int  nv04_devinit_fini(struct nouveau_object *, bool);
+
+#endif

drivers/gpu/drm/nouveau/core/subdev/bios/conn.c

@@ -0,0 +1,55 @@
+/*
+ * 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 <core/device.h>
+
+#include <subdev/bios.h>
+#include <subdev/bios/dcb.h>
+
+u16
+dcb_conntab(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
+{
+	u16 dcb = dcb_table(bios, ver, hdr, cnt, len);
+	if (dcb && *ver >= 0x30 && *hdr >= 0x16) {
+		u16 data = nv_ro16(bios, dcb + 0x14);
+		if (data) {
+			*ver = nv_ro08(bios, data + 0);
+			*hdr = nv_ro08(bios, data + 1);
+			*cnt = nv_ro08(bios, data + 2);
+			*len = nv_ro08(bios, data + 3);
+			return data;
+		}
+	}
+	return 0x0000;
+}
+
+u16
+dcb_conn(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len)
+{
+	u8  hdr, cnt;
+	u16 data = dcb_conntab(bios, ver, &hdr, &cnt, len);
+	if (data && idx < cnt)
+		return data + hdr + (idx * *len);
+	return 0x0000;
+}

drivers/gpu/drm/nouveau/core/subdev/bios/dp.c

@@ -0,0 +1,76 @@
+/*
+ * 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 "subdev/bios.h"
+#include "subdev/bios/bit.h"
+#include "subdev/bios/dcb.h"
+#include "subdev/bios/dp.h"
+
+u16
+dp_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
+{
+	struct bit_entry bit_d;
+
+	if (!bit_entry(bios, 'd', &bit_d)) {
+		if (bit_d.version == 1) {
+			u16 data = nv_ro16(bios, bit_d.offset);
+			if (data) {
+				*ver = nv_ro08(bios, data + 0);
+				*hdr = nv_ro08(bios, data + 1);
+				*len = nv_ro08(bios, data + 2);
+				*cnt = nv_ro08(bios, data + 3);
+				return data;
+			}
+		}
+	}
+
+	return 0x0000;
+}
+
+u16
+dp_outp(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len)
+{
+	u8  hdr, cnt;
+	u16 table = dp_table(bios, ver, &hdr, &cnt, len);
+	if (table && idx < cnt)
+		return nv_ro16(bios, table + hdr + (idx * *len));
+	return 0xffff;
+}
+
+u16
+dp_outp_match(struct nouveau_bios *bios, struct dcb_output *outp,
+	      u8 *ver, u8 *len)
+{
+	u8  idx = 0;
+	u16 data;
+	while ((data = dp_outp(bios, idx++, ver, len)) != 0xffff) {
+		if (data) {
+			u32 hash = nv_ro32(bios, data);
+			if (dcb_hash_match(outp, hash))
+				return data;
+		}
+	}
+	return 0x0000;
+}