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path: root/shared-core/nv04_graph.c
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/*
 * Copyright 2007 Stephane Marchesin
 * All Rights Reserved.
 *
 * 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 (including the next
 * paragraph) 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
 * PRECISION INSIGHT AND/OR ITS SUPPLIERS 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 "drmP.h"
#include "drm.h"
#include "nouveau_drm.h"
#include "nouveau_drv.h"

static uint32_t nv04_graph_ctx_regs [] = {
	NV04_PGRAPH_CTX_SWITCH1,
	NV04_PGRAPH_CTX_SWITCH2,
	NV04_PGRAPH_CTX_SWITCH3,
	NV04_PGRAPH_CTX_SWITCH4,
	NV04_PGRAPH_CTX_CACHE1,
	NV04_PGRAPH_CTX_CACHE2,
	NV04_PGRAPH_CTX_CACHE3,
	NV04_PGRAPH_CTX_CACHE4,
	0x00400184,
	0x004001a4,
	0x004001c4,
	0x004001e4,
	0x00400188,
	0x004001a8,
	0x004001c8,
	0x004001e8,
	0x0040018c,
	0x004001ac,
	0x004001cc,
	0x004001ec,
	0x00400190,
	0x004001b0,
	0x004001d0,
	0x004001f0,
	0x00400194,
	0x004001b4,
	0x004001d4,
	0x004001f4,
	0x00400198,
	0x004001b8,
	0x004001d8,
	0x004001f8,
	0x0040019c,
	0x004001bc,
	0x004001dc,
	0x004001fc,
	0x00400174,
	NV04_PGRAPH_DMA_START_0,
	NV04_PGRAPH_DMA_START_1,
	NV04_PGRAPH_DMA_LENGTH,
	NV04_PGRAPH_DMA_MISC,
	NV04_PGRAPH_DMA_PITCH,
	NV04_PGRAPH_BOFFSET0,
	NV04_PGRAPH_BBASE0,
	NV04_PGRAPH_BLIMIT0,
	NV04_PGRAPH_BOFFSET1,
	NV04_PGRAPH_BBASE1,
	NV04_PGRAPH_BLIMIT1,
	NV04_PGRAPH_BOFFSET2,
	NV04_PGRAPH_BBASE2,
	NV04_PGRAPH_BLIMIT2,
	NV04_PGRAPH_BOFFSET3,
	NV04_PGRAPH_BBASE3,
	NV04_PGRAPH_BLIMIT3,
	NV04_PGRAPH_BOFFSET4,
	NV04_PGRAPH_BBASE4,
	NV04_PGRAPH_BLIMIT4,
	NV04_PGRAPH_BOFFSET5,
	NV04_PGRAPH_BBASE5,
	NV04_PGRAPH_BLIMIT5,
	NV04_PGRAPH_BPITCH0,
	NV04_PGRAPH_BPITCH1,
	NV04_PGRAPH_BPITCH2,
	NV04_PGRAPH_BPITCH3,
	NV04_PGRAPH_BPITCH4,
	NV04_PGRAPH_SURFACE,
	NV04_PGRAPH_STATE,
	NV04_PGRAPH_BSWIZZLE2,
	NV04_PGRAPH_BSWIZZLE5,
	NV04_PGRAPH_BPIXEL,
	NV04_PGRAPH_NOTIFY,
	NV04_PGRAPH_PATT_COLOR0,
	NV04_PGRAPH_PATT_COLOR1,
	NV04_PGRAPH_PATT_COLORRAM+0x00,
	NV04_PGRAPH_PATT_COLORRAM+0x01,
	NV04_PGRAPH_PATT_COLORRAM+0x02,
	NV04_PGRAPH_PATT_COLORRAM+0x03,
	NV04_PGRAPH_PATT_COLORRAM+0x04,
	NV04_PGRAPH_PATT_COLORRAM+0x05,
	NV04_PGRAPH_PATT_COLORRAM+0x06,
	NV04_PGRAPH_PATT_COLORRAM+0x07,
	NV04_PGRAPH_PATT_COLORRAM+0x08,
	NV04_PGRAPH_PATT_COLORRAM+0x09,
	NV04_PGRAPH_PATT_COLORRAM+0x0A,
	NV04_PGRAPH_PATT_COLORRAM+0x0B,
	NV04_PGRAPH_PATT_COLORRAM+0x0C,
	NV04_PGRAPH_PATT_COLORRAM+0x0D,
	NV04_PGRAPH_PATT_COLORRAM+0x0E,
	NV04_PGRAPH_PATT_COLORRAM+0x0F,
	NV04_PGRAPH_PATT_COLORRAM+0x10,
	NV04_PGRAPH_PATT_COLORRAM+0x11,
	NV04_PGRAPH_PATT_COLORRAM+0x12,
	NV04_PGRAPH_PATT_COLORRAM+0x13,
	NV04_PGRAPH_PATT_COLORRAM+0x14,
	NV04_PGRAPH_PATT_COLORRAM+0x15,
	NV04_PGRAPH_PATT_COLORRAM+0x16,
	NV04_PGRAPH_PATT_COLORRAM+0x17,
	NV04_PGRAPH_PATT_COLORRAM+0x18,
	NV04_PGRAPH_PATT_COLORRAM+0x19,
	NV04_PGRAPH_PATT_COLORRAM+0x1A,
	NV04_PGRAPH_PATT_COLORRAM+0x1B,
	NV04_PGRAPH_PATT_COLORRAM+0x1C,
	NV04_PGRAPH_PATT_COLORRAM+0x1D,
	NV04_PGRAPH_PATT_COLORRAM+0x1E,
	NV04_PGRAPH_PATT_COLORRAM+0x1F,
	NV04_PGRAPH_PATT_COLORRAM+0x20,
	NV04_PGRAPH_PATT_COLORRAM+0x21,
	NV04_PGRAPH_PATT_COLORRAM+0x22,
	NV04_PGRAPH_PATT_COLORRAM+0x23,
	NV04_PGRAPH_PATT_COLORRAM+0x24,
	NV04_PGRAPH_PATT_COLORRAM+0x25,
	NV04_PGRAPH_PATT_COLORRAM+0x26,
	NV04_PGRAPH_PATT_COLORRAM+0x27,
	NV04_PGRAPH_PATT_COLORRAM+0x28,
	NV04_PGRAPH_PATT_COLORRAM+0x29,
	NV04_PGRAPH_PATT_COLORRAM+0x2A,
	NV04_PGRAPH_PATT_COLORRAM+0x2B,
	NV04_PGRAPH_PATT_COLORRAM+0x2C,
	NV04_PGRAPH_PATT_COLORRAM+0x2D,
	NV04_PGRAPH_PATT_COLORRAM+0x2E,
	NV04_PGRAPH_PATT_COLORRAM+0x2F,
	NV04_PGRAPH_PATT_COLORRAM+0x30,
	NV04_PGRAPH_PATT_COLORRAM+0x31,
	NV04_PGRAPH_PATT_COLORRAM+0x32,
	NV04_PGRAPH_PATT_COLORRAM+0x33,
	NV04_PGRAPH_PATT_COLORRAM+0x34,
	NV04_PGRAPH_PATT_COLORRAM+0x35,
	NV04_PGRAPH_PATT_COLORRAM+0x36,
	NV04_PGRAPH_PATT_COLORRAM+0x37,
	NV04_PGRAPH_PATT_COLORRAM+0x38,
	NV04_PGRAPH_PATT_COLORRAM+0x39,
	NV04_PGRAPH_PATT_COLORRAM+0x3A,
	NV04_PGRAPH_PATT_COLORRAM+0x3B,
	NV04_PGRAPH_PATT_COLORRAM+0x3C,
	NV04_PGRAPH_PATT_COLORRAM+0x3D,
	NV04_PGRAPH_PATT_COLORRAM+0x3E,
	NV04_PGRAPH_PATT_COLORRAM+0x3F,
	NV04_PGRAPH_PATTERN,
	0x0040080c,
	NV04_PGRAPH_PATTERN_SHAPE,
	0x00400600,
	NV04_PGRAPH_ROP3,
	NV04_PGRAPH_CHROMA,
	NV04_PGRAPH_BETA_AND,
	NV04_PGRAPH_BETA_PREMULT,
	NV04_PGRAPH_CONTROL0,
	NV04_PGRAPH_CONTROL1,
	NV04_PGRAPH_CONTROL2,
	NV04_PGRAPH_BLEND,
	NV04_PGRAPH_STORED_FMT,
	NV04_PGRAPH_SOURCE_COLOR,
	0x00400560,
	0x00400568,
	0x00400564,
	0x0040056c,
	0x00400400,
	0x00400480,
	0x00400404,
	0x00400484,
	0x00400408,
	0x00400488,
	0x0040040c,
	0x0040048c,
	0x00400410,
	0x00400490,
	0x00400414,
	0x00400494,
	0x00400418,
	0x00400498,
	0x0040041c,
	0x0040049c,
	0x00400420,
	0x004004a0,
	0x00400424,
	0x004004a4,
	0x00400428,
	0x004004a8,
	0x0040042c,
	0x004004ac,
	0x00400430,
	0x004004b0,
	0x00400434,
	0x004004b4,
	0x00400438,
	0x004004b8,
	0x0040043c,
	0x004004bc,
	0x00400440,
	0x004004c0,
	0x00400444,
	0x004004c4,
	0x00400448,
	0x004004c8,
	0x0040044c,
	0x004004cc,
	0x00400450,
	0x004004d0,
	0x00400454,
	0x004004d4,
	0x00400458,
	0x004004d8,
	0x0040045c,
	0x004004dc,
	0x00400460,
	0x004004e0,
	0x00400464,
	0x004004e4,
	0x00400468,
	0x004004e8,
	0x0040046c,
	0x004004ec,
	0x00400470,
	0x004004f0,
	0x00400474,
	0x004004f4,
	0x00400478,
	0x004004f8,
	0x0040047c,
	0x004004fc,
	0x0040053c,
	0x00400544,
	0x00400540,
	0x00400548,
	0x00400560,
	0x00400568,
	0x00400564,
	0x0040056c,
	0x00400534,
	0x00400538,
	0x00400514,
	0x00400518,
	0x0040051c,
	0x00400520,
	0x00400524,
	0x00400528,
	0x0040052c,
	0x00400530,
	0x00400d00,
	0x00400d40,
	0x00400d80,
	0x00400d04,
	0x00400d44,
	0x00400d84,
	0x00400d08,
	0x00400d48,
	0x00400d88,
	0x00400d0c,
	0x00400d4c,
	0x00400d8c,
	0x00400d10,
	0x00400d50,
	0x00400d90,
	0x00400d14,
	0x00400d54,
	0x00400d94,
	0x00400d18,
	0x00400d58,
	0x00400d98,
	0x00400d1c,
	0x00400d5c,
	0x00400d9c,
	0x00400d20,
	0x00400d60,
	0x00400da0,
	0x00400d24,
	0x00400d64,
	0x00400da4,
	0x00400d28,
	0x00400d68,
	0x00400da8,
	0x00400d2c,
	0x00400d6c,
	0x00400dac,
	0x00400d30,
	0x00400d70,
	0x00400db0,
	0x00400d34,
	0x00400d74,
	0x00400db4,
	0x00400d38,
	0x00400d78,
	0x00400db8,
	0x00400d3c,
	0x00400d7c,
	0x00400dbc,
	0x00400590,
	0x00400594,
	0x00400598,
	0x0040059c,
	0x004005a8,
	0x004005ac,
	0x004005b0,
	0x004005b4,
	0x004005c0,
	0x004005c4,
	0x004005c8,
	0x004005cc,
	0x004005d0,
	0x004005d4,
	0x004005d8,
	0x004005dc,
	0x004005e0,
	NV04_PGRAPH_PASSTHRU_0,
	NV04_PGRAPH_PASSTHRU_1,
	NV04_PGRAPH_PASSTHRU_2,
	NV04_PGRAPH_DVD_COLORFMT,
	NV04_PGRAPH_SCALED_FORMAT,
	NV04_PGRAPH_MISC24_0,
	NV04_PGRAPH_MISC24_1,
	NV04_PGRAPH_MISC24_2,
	0x00400500,
	0x00400504,
	NV04_PGRAPH_VALID1,
	NV04_PGRAPH_VALID2


};

struct graph_state {
	int nv04[sizeof(nv04_graph_ctx_regs)/sizeof(nv04_graph_ctx_regs[0])];
};

void nouveau_nv04_context_switch(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_engine *engine = &dev_priv->Engine;
	struct nouveau_channel *next, *last;
	int chid;

	if (!dev) {
		DRM_DEBUG("Invalid drm_device\n");
		return;
	}
	dev_priv = dev->dev_private;
	if (!dev_priv) {
		DRM_DEBUG("Invalid drm_nouveau_private\n");
		return;
	}
	if (!dev_priv->fifos) {
		DRM_DEBUG("Invalid drm_nouveau_private->fifos\n");
		return;
	}

	chid = engine->fifo.channel_id(dev);
	next = dev_priv->fifos[chid];

	if (!next) {
		DRM_DEBUG("Invalid next channel\n");
		return;
	}

	chid = (NV_READ(NV04_PGRAPH_CTX_USER) >> 24) & (engine->fifo.channels - 1);
	last = dev_priv->fifos[chid];

	if (!last) {
		DRM_DEBUG("WARNING: Invalid last channel, switch to %x\n",
		          next->id);
	} else {
		DRM_INFO("NV: PGRAPH context switch interrupt channel %x -> %x\n",
		         last->id, next->id);
	}

/*	NV_WRITE(NV03_PFIFO_CACHES, 0x0);
	NV_WRITE(NV04_PFIFO_CACHE0_PULL0, 0x0);
	NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 0x0);*/
	NV_WRITE(NV04_PGRAPH_FIFO,0x0);

	if (last)
		nv04_graph_save_context(last);

	nouveau_wait_for_idle(dev);

	NV_WRITE(NV04_PGRAPH_CTX_CONTROL, 0x10000000);
	NV_WRITE(NV04_PGRAPH_CTX_USER, (NV_READ(NV04_PGRAPH_CTX_USER) & 0xffffff) | (0x0f << 24));

	nouveau_wait_for_idle(dev);

	nv04_graph_load_context(next);

	NV_WRITE(NV04_PGRAPH_CTX_CONTROL, 0x10010100);
	NV_WRITE(NV04_PGRAPH_CTX_USER, next->id << 24);
	NV_WRITE(NV04_PGRAPH_FFINTFC_ST2, NV_READ(NV04_PGRAPH_FFINTFC_ST2)&0x000FFFFF);

/*	NV_WRITE(NV04_PGRAPH_FIFO,0x0);
	NV_WRITE(NV04_PFIFO_CACHE0_PULL0, 0x0);
	NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 0x1);
	NV_WRITE(NV03_PFIFO_CACHES, 0x1);*/
	NV_WRITE(NV04_PGRAPH_FIFO,0x1);
}

int nv04_graph_create_context(struct nouveau_channel *chan) {
	struct graph_state* pgraph_ctx;
	DRM_DEBUG("nv04_graph_context_create %d\n", chan->id);

	chan->pgraph_ctx = pgraph_ctx = drm_calloc(1, sizeof(*pgraph_ctx),
					      DRM_MEM_DRIVER);

	if (pgraph_ctx == NULL)
		return -ENOMEM;

	//dev_priv->fifos[channel].pgraph_ctx_user = channel << 24;
	pgraph_ctx->nv04[0] = 0x0001ffff;
	/* is it really needed ??? */
	//dev_priv->fifos[channel].pgraph_ctx[1] = NV_READ(NV_PGRAPH_DEBUG_4);
	//dev_priv->fifos[channel].pgraph_ctx[2] = NV_READ(0x004006b0);

	return 0;
}

void nv04_graph_destroy_context(struct nouveau_channel *chan)
{
	struct graph_state* pgraph_ctx = chan->pgraph_ctx;

	drm_free(pgraph_ctx, sizeof(*pgraph_ctx), DRM_MEM_DRIVER);
	chan->pgraph_ctx = NULL;
}

int nv04_graph_load_context(struct nouveau_channel *chan)
{
	struct drm_device *dev = chan->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct graph_state* pgraph_ctx = chan->pgraph_ctx;
	int i;

	for (i = 0; i < sizeof(nv04_graph_ctx_regs)/sizeof(nv04_graph_ctx_regs[0]); i++)
		NV_WRITE(nv04_graph_ctx_regs[i], pgraph_ctx->nv04[i]);

	return 0;
}

int nv04_graph_save_context(struct nouveau_channel *chan)
{
	struct drm_device *dev = chan->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct graph_state* pgraph_ctx = chan->pgraph_ctx;
	int i;

	for (i = 0; i < sizeof(nv04_graph_ctx_regs)/sizeof(nv04_graph_ctx_regs[0]); i++)
		pgraph_ctx->nv04[i] = NV_READ(nv04_graph_ctx_regs[i]);

	return 0;
}

int nv04_graph_init(struct drm_device *dev) {
	struct drm_nouveau_private *dev_priv = dev->dev_private;

	NV_WRITE(NV03_PMC_ENABLE, NV_READ(NV03_PMC_ENABLE) &
			~NV_PMC_ENABLE_PGRAPH);
	NV_WRITE(NV03_PMC_ENABLE, NV_READ(NV03_PMC_ENABLE) |
			 NV_PMC_ENABLE_PGRAPH);

	/* Enable PGRAPH interrupts */
	NV_WRITE(NV03_PGRAPH_INTR, 0xFFFFFFFF);
	NV_WRITE(NV03_PGRAPH_INTR_EN, 0xFFFFFFFF);

	NV_WRITE(NV04_PGRAPH_VALID1, 0);
	NV_WRITE(NV04_PGRAPH_VALID2, 0);
	/*NV_WRITE(NV04_PGRAPH_DEBUG_0, 0x000001FF);
	NV_WRITE(NV04_PGRAPH_DEBUG_0, 0x001FFFFF);*/
	NV_WRITE(NV04_PGRAPH_DEBUG_0, 0x1231c000);
	/*1231C000 blob, 001 haiku*/
	//*V_WRITE(NV04_PGRAPH_DEBUG_1, 0xf2d91100);*/
	NV_WRITE(NV04_PGRAPH_DEBUG_1, 0x72111100);
	/*0x72111100 blob , 01 haiku*/
	/*NV_WRITE(NV04_PGRAPH_DEBUG_2, 0x11d5f870);*/
	NV_WRITE(NV04_PGRAPH_DEBUG_2, 0x11d5f071);
	/*haiku same*/

	/*NV_WRITE(NV04_PGRAPH_DEBUG_3, 0xfad4ff31);*/
	NV_WRITE(NV04_PGRAPH_DEBUG_3, 0x10d4ff31);
	/*haiku and blob 10d4*/

	NV_WRITE(NV04_PGRAPH_STATE        , 0xFFFFFFFF);
	NV_WRITE(NV04_PGRAPH_CTX_CONTROL  , 0x10010100);
	NV_WRITE(NV04_PGRAPH_FIFO         , 0x00000001);

	/* These don't belong here, they're part of a per-channel context */
	NV_WRITE(NV04_PGRAPH_PATTERN_SHAPE, 0x00000000);
	NV_WRITE(NV04_PGRAPH_BETA_AND     , 0xFFFFFFFF);

	return 0;
}

void nv04_graph_takedown(struct drm_device *dev)
{
}
774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316
/* radeon_cp.c -- CP support for Radeon -*- linux-c -*- */
/*
 * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
 * All Rights Reserved.
 *
 * 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 (including the next
 * paragraph) 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
 * PRECISION INSIGHT AND/OR ITS SUPPLIERS 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:
 *    Kevin E. Martin <martin@valinux.com>
 *    Gareth Hughes <gareth@valinux.com>
 */

#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"
#include "r300_reg.h"

#define RADEON_FIFO_DEBUG	0

static int radeon_do_cleanup_cp(struct drm_device * dev);

/* CP microcode (from ATI) */
static const u32 R200_cp_microcode[][2] = {
	{0x21007000, 0000000000},
	{0x20007000, 0000000000},
	{0x000000ab, 0x00000004},
	{0x000000af, 0x00000004},
	{0x66544a49, 0000000000},
	{0x49494174, 0000000000},
	{0x54517d83, 0000000000},
	{0x498d8b64, 0000000000},
	{0x49494949, 0000000000},
	{0x49da493c, 0000000000},
	{0x49989898, 0000000000},
	{0xd34949d5, 0000000000},
	{0x9dc90e11, 0000000000},
	{0xce9b9b9b, 0000000000},
	{0x000f0000, 0x00000016},
	{0x352e232c, 0000000000},
	{0x00000013, 0x00000004},
	{0x000f0000, 0x00000016},
	{0x352e272c, 0000000000},
	{0x000f0001, 0x00000016},
	{0x3239362f, 0000000000},
	{0x000077ef, 0x00000002},
	{0x00061000, 0x00000002},
	{0x00000020, 0x0000001a},
	{0x00004000, 0x0000001e},
	{0x00061000, 0x00000002},
	{0x00000020, 0x0000001a},
	{0x00004000, 0x0000001e},
	{0x00061000, 0x00000002},
	{0x00000020, 0x0000001a},
	{0x00004000, 0x0000001e},
	{0x00000016, 0x00000004},
	{0x0003802a, 0x00000002},
	{0x040067e0, 0x00000002},
	{0x00000016, 0x00000004},
	{0x000077e0, 0x00000002},
	{0x00065000, 0x00000002},
	{0x000037e1, 0x00000002},
	{0x040067e1, 0x00000006},
	{0x000077e0, 0x00000002},
	{0x000077e1, 0x00000002},
	{0x000077e1, 0x00000006},
	{0xffffffff, 0000000000},
	{0x10000000, 0000000000},
	{0x0003802a, 0x00000002},
	{0x040067e0, 0x00000006},
	{0x00007675, 0x00000002},
	{0x00007676, 0x00000002},
	{0x00007677, 0x00000002},
	{0x00007678, 0x00000006},
	{0x0003802b, 0x00000002},
	{0x04002676, 0x00000002},
	{0x00007677, 0x00000002},
	{0x00007678, 0x00000006},
	{0x0000002e, 0x00000018},
	{0x0000002e, 0x00000018},
	{0000000000, 0x00000006},
	{0x0000002f, 0x00000018},
	{0x0000002f, 0x00000018},
	{0000000000, 0x00000006},
	{0x01605000, 0x00000002},
	{0x00065000, 0x00000002},
	{0x00098000, 0x00000002},
	{0x00061000, 0x00000002},
	{0x64c0603d, 0x00000004},
	{0x00080000, 0x00000016},
	{0000000000, 0000000000},
	{0x0400251d, 0x00000002},
	{0x00007580, 0x00000002},
	{0x00067581, 0x00000002},
	{0x04002580, 0x00000002},
	{0x00067581, 0x00000002},
	{0x00000046, 0x00000004},
	{0x00005000, 0000000000},
	{0x00061000, 0x00000002},
	{0x0000750e, 0x00000002},
	{0x00019000, 0x00000002},
	{0x00011055, 0x00000014},
	{0x00000055, 0x00000012},
	{0x0400250f, 0x00000002},
	{0x0000504a, 0x00000004},
	{0x00007565, 0x00000002},
	{0x00007566, 0x00000002},
	{0x00000051, 0x00000004},
	{0x01e655b4, 0x00000002},
	{0x4401b0dc, 0x00000002},
	{0x01c110dc, 0x00000002},
	{0x2666705d, 0x00000018},
	{0x040c2565, 0x00000002},
	{0x0000005d, 0x00000018},
	{0x04002564, 0x00000002},
	{0x00007566, 0x00000002},
	{0x00000054, 0x00000004},
	{0x00401060, 0x00000008},
	{0x00101000, 0x00000002},
	{0x000d80ff, 0x00000002},
	{0x00800063, 0x00000008},
	{0x000f9000, 0x00000002},
	{0x000e00ff, 0x00000002},
	{0000000000, 0x00000006},
	{0x00000080, 0x00000018},
	{0x00000054, 0x00000004},
	{0x00007576, 0x00000002},
	{0x00065000, 0x00000002},
	{0x00009000, 0x00000002},
	{0x00041000, 0x00000002},
	{0x0c00350e, 0x00000002},
	{0x00049000, 0x00000002},
	{0x00051000, 0x00000002},
	{0x01e785f8, 0x00000002},
	{0x00200000, 0x00000002},
	{0x00600073, 0x0000000c},
	{0x00007563, 0x00000002},
	{0x006075f0, 0x00000021},
	{0x20007068, 0x00000004},
	{0x00005068, 0x00000004},
	{0x00007576, 0x00000002},
	{0x00007577, 0x00000002},
	{0x0000750e, 0x00000002},
	{0x0000750f, 0x00000002},
	{0x00a05000, 0x00000002},
	{0x00600076, 0x0000000c},
	{0x006075f0, 0x00000021},
	{0x000075f8, 0x00000002},
	{0x00000076, 0x00000004},
	{0x000a750e, 0x00000002},
	{0x0020750f, 0x00000002},
	{0x00600079, 0x00000004},
	{0x00007570, 0x00000002},
	{0x00007571, 0x00000002},
	{0x00007572, 0x00000006},
	{0x00005000, 0x00000002},
	{0x00a05000, 0x00000002},
	{0x00007568, 0x00000002},
	{0x00061000, 0x00000002},
	{0x00000084, 0x0000000c},
	{0x00058000, 0x00000002},
	{0x0c607562, 0x00000002},
	{0x00000086, 0x00000004},
	{0x00600085, 0x00000004},
	{0x400070dd, 0000000000},
	{0x000380dd, 0x00000002},
	{0x00000093, 0x0000001c},
	{0x00065095, 0x00000018},
	{0x040025bb, 0x00000002},
	{0x00061096, 0x00000018},
	{0x040075bc, 0000000000},
	{0x000075bb, 0x00000002},
	{0x000075bc, 0000000000},
	{0x00090000, 0x00000006},
	{0x00090000, 0x00000002},
	{0x000d8002, 0x00000006},
	{0x00005000, 0x00000002},
	{0x00007821, 0x00000002},
	{0x00007800, 0000000000},
	{0x00007821, 0x00000002},
	{0x00007800, 0000000000},
	{0x01665000, 0x00000002},
	{0x000a0000, 0x00000002},
	{0x000671cc, 0x00000002},
	{0x0286f1cd, 0x00000002},
	{0x000000a3, 0x00000010},
	{0x21007000, 0000000000},
	{0x000000aa, 0x0000001c},
	{0x00065000, 0x00000002},
	{0x000a0000, 0x00000002},
	{0x00061000, 0x00000002},
	{0x000b0000, 0x00000002},
	{0x38067000, 0x00000002},
	{0x000a00a6, 0x00000004},
	{0x20007000, 0000000000},
	{0x01200000, 0x00000002},
	{0x20077000, 0x00000002},
	{0x01200000, 0x00000002},
	{0x20007000, 0000000000},
	{0x00061000, 0x00000002},
	{0x0120751b, 0x00000002},
	{0x8040750a, 0x00000002},
	{0x8040750b, 0x00000002},
	{0x00110000, 0x00000002},
	{0x000380dd, 0x00000002},
	{0x000000bd, 0x0000001c},
	{0x00061096, 0x00000018},
	{0x844075bd, 0x00000002},
	{0x00061095, 0x00000018},
	{0x840075bb, 0x00000002},
	{0x00061096, 0x00000018},
	{0x844075bc, 0x00000002},
	{0x000000c0, 0x00000004},
	{0x804075bd, 0x00000002},
	{0x800075bb, 0x00000002},
	{0x804075bc, 0x00000002},
	{0x00108000, 0x00000002},
	{0x01400000, 0x00000002},
	{0x006000c4, 0x0000000c},
	{0x20c07000, 0x00000020},
	{0x000000c6, 0x00000012},
	{0x00800000, 0x00000006},
	{0x0080751d, 0x00000006},
	{0x000025bb, 0x00000002},
	{0x000040c0, 0x00000004},
	{0x0000775c, 0x00000002},
	{0x00a05000, 0x00000002},
	{0x00661000, 0x00000002},
	{0x0460275d, 0x00000020},
	{0x00004000, 0000000000},
	{0x00007999, 0x00000002},
	{0x00a05000, 0x00000002},
	{0x00661000, 0x00000002},
	{0x0460299b, 0x00000020},
	{0x00004000, 0000000000},
	{0x01e00830, 0x00000002},
	{0x21007000, 0000000000},
	{0x00005000, 0x00000002},
	{0x00038042, 0x00000002},
	{0x040025e0, 0x00000002},
	{0x000075e1, 0000000000},
	{0x00000001, 0000000000},
	{0x000380d9, 0x00000002},
	{0x04007394, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
};

static const u32 radeon_cp_microcode[][2] = {
	{0x21007000, 0000000000},
	{0x20007000, 0000000000},
	{0x000000b4, 0x00000004},
	{0x000000b8, 0x00000004},
	{0x6f5b4d4c, 0000000000},
	{0x4c4c427f, 0000000000},
	{0x5b568a92, 0000000000},
	{0x4ca09c6d, 0000000000},
	{0xad4c4c4c, 0000000000},
	{0x4ce1af3d, 0000000000},
	{0xd8afafaf, 0000000000},
	{0xd64c4cdc, 0000000000},
	{0x4cd10d10, 0000000000},
	{0x000f0000, 0x00000016},
	{0x362f242d, 0000000000},
	{0x00000012, 0x00000004},
	{0x000f0000, 0x00000016},
	{0x362f282d, 0000000000},
	{0x000380e7, 0x00000002},
	{0x04002c97, 0x00000002},
	{0x000f0001, 0x00000016},
	{0x333a3730, 0000000000},
	{0x000077ef, 0x00000002},
	{0x00061000, 0x00000002},
	{0x00000021, 0x0000001a},
	{0x00004000, 0x0000001e},
	{0x00061000, 0x00000002},
	{0x00000021, 0x0000001a},
	{0x00004000, 0x0000001e},
	{0x00061000, 0x00000002},
	{0x00000021, 0x0000001a},
	{0x00004000, 0x0000001e},
	{0x00000017, 0x00000004},
	{0x0003802b, 0x00000002},
	{0x040067e0, 0x00000002},
	{0x00000017, 0x00000004},
	{0x000077e0, 0x00000002},
	{0x00065000, 0x00000002},
	{0x000037e1, 0x00000002},
	{0x040067e1, 0x00000006},
	{0x000077e0, 0x00000002},
	{0x000077e1, 0x00000002},
	{0x000077e1, 0x00000006},
	{0xffffffff, 0000000000},
	{0x10000000, 0000000000},
	{0x0003802b, 0x00000002},
	{0x040067e0, 0x00000006},
	{0x00007675, 0x00000002},
	{0x00007676, 0x00000002},
	{0x00007677, 0x00000002},
	{0x00007678, 0x00000006},
	{0x0003802c, 0x00000002},
	{0x04002676, 0x00000002},
	{0x00007677, 0x00000002},
	{0x00007678, 0x00000006},
	{0x0000002f, 0x00000018},
	{0x0000002f, 0x00000018},
	{0000000000, 0x00000006},
	{0x00000030, 0x00000018},
	{0x00000030, 0x00000018},
	{0000000000, 0x00000006},
	{0x01605000, 0x00000002},
	{0x00065000, 0x00000002},
	{0x00098000, 0x00000002},
	{0x00061000, 0x00000002},
	{0x64c0603e, 0x00000004},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x00080000, 0x00000016},
	{0000000000, 0000000000},
	{0x0400251d, 0x00000002},
	{0x00007580, 0x00000002},
	{0x00067581, 0x00000002},
	{0x04002580, 0x00000002},
	{0x00067581, 0x00000002},
	{0x00000049, 0x00000004},
	{0x00005000, 0000000000},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x00061000, 0x00000002},
	{0x0000750e, 0x00000002},
	{0x00019000, 0x00000002},
	{0x00011055, 0x00000014},
	{0x00000055, 0x00000012},
	{0x0400250f, 0x00000002},
	{0x0000504f, 0x00000004},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x00007565, 0x00000002},
	{0x00007566, 0x00000002},
	{0x00000058, 0x00000004},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x01e655b4, 0x00000002},
	{0x4401b0e4, 0x00000002},
	{0x01c110e4, 0x00000002},
	{0x26667066, 0x00000018},
	{0x040c2565, 0x00000002},
	{0x00000066, 0x00000018},
	{0x04002564, 0x00000002},
	{0x00007566, 0x00000002},
	{0x0000005d, 0x00000004},
	{0x00401069, 0x00000008},
	{0x00101000, 0x00000002},
	{0x000d80ff, 0x00000002},
	{0x0080006c, 0x00000008},
	{0x000f9000, 0x00000002},
	{0x000e00ff, 0x00000002},
	{0000000000, 0x00000006},
	{0x0000008f, 0x00000018},
	{0x0000005b, 0x00000004},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x00007576, 0x00000002},
	{0x00065000, 0x00000002},
	{0x00009000, 0x00000002},
	{0x00041000, 0x00000002},
	{0x0c00350e, 0x00000002},
	{0x00049000, 0x00000002},
	{0x00051000, 0x00000002},
	{0x01e785f8, 0x00000002},
	{0x00200000, 0x00000002},
	{0x0060007e, 0x0000000c},
	{0x00007563, 0x00000002},
	{0x006075f0, 0x00000021},
	{0x20007073, 0x00000004},
	{0x00005073, 0x00000004},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x00007576, 0x00000002},
	{0x00007577, 0x00000002},
	{0x0000750e, 0x00000002},
	{0x0000750f, 0x00000002},
	{0x00a05000, 0x00000002},
	{0x00600083, 0x0000000c},
	{0x006075f0, 0x00000021},
	{0x000075f8, 0x00000002},
	{0x00000083, 0x00000004},
	{0x000a750e, 0x00000002},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x0020750f, 0x00000002},
	{0x00600086, 0x00000004},
	{0x00007570, 0x00000002},
	{0x00007571, 0x00000002},
	{0x00007572, 0x00000006},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x00005000, 0x00000002},
	{0x00a05000, 0x00000002},
	{0x00007568, 0x00000002},
	{0x00061000, 0x00000002},
	{0x00000095, 0x0000000c},
	{0x00058000, 0x00000002},
	{0x0c607562, 0x00000002},
	{0x00000097, 0x00000004},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x00600096, 0x00000004},
	{0x400070e5, 0000000000},
	{0x000380e6, 0x00000002},
	{0x040025c5, 0x00000002},
	{0x000380e5, 0x00000002},
	{0x000000a8, 0x0000001c},
	{0x000650aa, 0x00000018},
	{0x040025bb, 0x00000002},
	{0x000610ab, 0x00000018},
	{0x040075bc, 0000000000},
	{0x000075bb, 0x00000002},
	{0x000075bc, 0000000000},
	{0x00090000, 0x00000006},
	{0x00090000, 0x00000002},
	{0x000d8002, 0x00000006},
	{0x00007832, 0x00000002},
	{0x00005000, 0x00000002},
	{0x000380e7, 0x00000002},
	{0x04002c97, 0x00000002},
	{0x00007820, 0x00000002},
	{0x00007821, 0x00000002},
	{0x00007800, 0000000000},
	{0x01200000, 0x00000002},
	{0x20077000, 0x00000002},
	{0x01200000, 0x00000002},
	{0x20007000, 0x00000002},
	{0x00061000, 0x00000002},
	{0x0120751b, 0x00000002},
	{0x8040750a, 0x00000002},
	{0x8040750b, 0x00000002},
	{0x00110000, 0x00000002},
	{0x000380e5, 0x00000002},
	{0x000000c6, 0x0000001c},
	{0x000610ab, 0x00000018},
	{0x844075bd, 0x00000002},
	{0x000610aa, 0x00000018},
	{0x840075bb, 0x00000002},
	{0x000610ab, 0x00000018},
	{0x844075bc, 0x00000002},
	{0x000000c9, 0x00000004},
	{0x804075bd, 0x00000002},
	{0x800075bb, 0x00000002},
	{0x804075bc, 0x00000002},
	{0x00108000, 0x00000002},
	{0x01400000, 0x00000002},
	{0x006000cd, 0x0000000c},
	{0x20c07000, 0x00000020},
	{0x000000cf, 0x00000012},
	{0x00800000, 0x00000006},
	{0x0080751d, 0x00000006},
	{0000000000, 0000000000},
	{0x0000775c, 0x00000002},
	{0x00a05000, 0x00000002},
	{0x00661000, 0x00000002},
	{0x0460275d, 0x00000020},
	{0x00004000, 0000000000},
	{0x01e00830, 0x00000002},
	{0x21007000, 0000000000},
	{0x6464614d, 0000000000},
	{0x69687420, 0000000000},
	{0x00000073, 0000000000},
	{0000000000, 0000000000},
	{0x00005000, 0x00000002},
	{0x000380d0, 0x00000002},
	{0x040025e0, 0x00000002},
	{0x000075e1, 0000000000},
	{0x00000001, 0000000000},
	{0x000380e0, 0x00000002},
	{0x04002394, 0x00000002},
	{0x00005000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0x00000008, 0000000000},
	{0x00000004, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
	{0000000000, 0000000000},
};

static const u32 R300_cp_microcode[][2] = {
	{ 0x4200e000, 0000000000 },
	{ 0x4000e000, 0000000000 },
	{ 0x000000af, 0x00000008 },
	{ 0x000000b3, 0x00000008 },
	{ 0x6c5a504f, 0000000000 },
	{ 0x4f4f497a, 0000000000 },
	{ 0x5a578288, 0000000000 },
	{ 0x4f91906a, 0000000000 },
	{ 0x4f4f4f4f, 0000000000 },
	{ 0x4fe24f44, 0000000000 },
	{ 0x4f9c9c9c, 0000000000 },
	{ 0xdc4f4fde, 0000000000 },
	{ 0xa1cd4f4f, 0000000000 },
	{ 0xd29d9d9d, 0000000000 },
	{ 0x4f0f9fd7, 0000000000 },
	{ 0x000ca000, 0x00000004 },
	{ 0x000d0012, 0x00000038 },
	{ 0x0000e8b4, 0x00000004 },
	{ 0x000d0014, 0x00000038 },
	{ 0x0000e8b6, 0x00000004 },
	{ 0x000d0016, 0x00000038 },
	{ 0x0000e854, 0x00000004 },
	{ 0x000d0018, 0x00000038 },
	{ 0x0000e855, 0x00000004 },
	{ 0x000d001a, 0x00000038 },
	{ 0x0000e856, 0x00000004 },
	{ 0x000d001c, 0x00000038 },
	{ 0x0000e857, 0x00000004 },
	{ 0x000d001e, 0x00000038 },
	{ 0x0000e824, 0x00000004 },
	{ 0x000d0020, 0x00000038 },
	{ 0x0000e825, 0x00000004 },
	{ 0x000d0022, 0x00000038 },
	{ 0x0000e830, 0x00000004 },
	{ 0x000d0024, 0x00000038 },
	{ 0x0000f0c0, 0x00000004 },
	{ 0x000d0026, 0x00000038 },
	{ 0x0000f0c1, 0x00000004 },
	{ 0x000d0028, 0x00000038 },
	{ 0x0000f041, 0x00000004 },
	{ 0x000d002a, 0x00000038 },
	{ 0x0000f184, 0x00000004 },
	{ 0x000d002c, 0x00000038 },
	{ 0x0000f185, 0x00000004 },
	{ 0x000d002e, 0x00000038 },
	{ 0x0000f186, 0x00000004 },
	{ 0x000d0030, 0x00000038 },
	{ 0x0000f187, 0x00000004 },
	{ 0x000d0032, 0x00000038 },
	{ 0x0000f180, 0x00000004 },
	{ 0x000d0034, 0x00000038 },
	{ 0x0000f393, 0x00000004 },
	{ 0x000d0036, 0x00000038 },
	{ 0x0000f38a, 0x00000004 },
	{ 0x000d0038, 0x00000038 },
	{ 0x0000f38e, 0x00000004 },
	{ 0x0000e821, 0x00000004 },
	{ 0x0140a000, 0x00000004 },
	{ 0x00000043, 0x00000018 },
	{ 0x00cce800, 0x00000004 },
	{ 0x001b0001, 0x00000004 },
	{ 0x08004800, 0x00000004 },
	{ 0x001b0001, 0x00000004 },
	{ 0x08004800, 0x00000004 },
	{ 0x001b0001, 0x00000004 },
	{ 0x08004800, 0x00000004 },
	{ 0x0000003a, 0x00000008 },
	{ 0x0000a000, 0000000000 },
	{ 0x02c0a000, 0x00000004 },
	{ 0x000ca000, 0x00000004 },
	{ 0x00130000, 0x00000004 },
	{ 0x000c2000, 0x00000004 },
	{ 0xc980c045, 0x00000008 },
	{ 0x2000451d, 0x00000004 },
	{ 0x0000e580, 0x00000004 },
	{ 0x000ce581, 0x00000004 },
	{ 0x08004580, 0x00000004 },
	{ 0x000ce581, 0x00000004 },
	{ 0x0000004c, 0x00000008 },
	{ 0x0000a000, 0000000000 },
	{ 0x000c2000, 0x00000004 },
	{ 0x0000e50e, 0x00000004 },
	{ 0x00032000, 0x00000004 },
	{ 0x00022056, 0x00000028 },
	{ 0x00000056, 0x00000024 },
	{ 0x0800450f, 0x00000004 },
	{ 0x0000a050, 0x00000008 },
	{ 0x0000e565, 0x00000004 },
	{ 0x0000e566, 0x00000004 },
	{ 0x00000057, 0x00000008 },
	{ 0x03cca5b4, 0x00000004 },
	{ 0x05432000, 0x00000004 },
	{ 0x00022000, 0x00000004 },
	{ 0x4ccce063, 0x00000030 },
	{ 0x08274565, 0x00000004 },
	{ 0x00000063, 0x00000030 },
	{ 0x08004564, 0x00000004 },
	{ 0x0000e566, 0x00000004 },
	{ 0x0000005a, 0x00000008 },
	{ 0x00802066, 0x00000010 },
	{ 0x00202000, 0x00000004 },
	{ 0x001b00ff, 0x00000004 },
	{ 0x01000069, 0x00000010 },
	{ 0x001f2000, 0x00000004 },
	{ 0x001c00ff, 0x00000004 },
	{ 0000000000, 0x0000000c },
	{ 0x00000085, 0x00000030 },
	{ 0x0000005a, 0x00000008 },
	{ 0x0000e576, 0x00000004 },
	{ 0x000ca000, 0x00000004 },
	{ 0x00012000, 0x00000004 },
	{ 0x00082000, 0x00000004 },
	{ 0x1800650e, 0x00000004 },
	{ 0x00092000, 0x00000004 },
	{ 0x000a2000, 0x00000004 },
	{ 0x000f0000, 0x00000004 },
	{ 0x00400000, 0x00000004 },
	{ 0x00000079, 0x00000018 },
	{ 0x0000e563, 0x00000004 },
	{ 0x00c0e5f9, 0x000000c2 },
	{ 0x0000006e, 0x00000008 },
	{ 0x0000a06e, 0x00000008 },
	{ 0x0000e576, 0x00000004 },
	{ 0x0000e577, 0x00000004 },
	{ 0x0000e50e, 0x00000004 },
	{ 0x0000e50f, 0x00000004 },
	{ 0x0140a000, 0x00000004 },
	{ 0x0000007c, 0x00000018 },
	{ 0x00c0e5f9, 0x000000c2 },
	{ 0x0000007c, 0x00000008 },
	{ 0x0014e50e, 0x00000004 },
	{ 0x0040e50f, 0x00000004 },
	{ 0x00c0007f, 0x00000008 },
	{ 0x0000e570, 0x00000004 },
	{ 0x0000e571, 0x00000004 },
	{ 0x0000e572, 0x0000000c },
	{ 0x0000a000, 0x00000004 },
	{ 0x0140a000, 0x00000004 }, 
	{ 0x0000e568, 0x00000004 },
	{ 0x000c2000, 0x00000004 },
	{ 0x00000089, 0x00000018 },
	{ 0x000b0000, 0x00000004 },
	{ 0x18c0e562, 0x00000004 },
	{ 0x0000008b, 0x00000008 },
	{ 0x00c0008a, 0x00000008 },
	{ 0x000700e4, 0x00000004 },
	{ 0x00000097, 0x00000038 },
	{ 0x000ca099, 0x00000030 },
	{ 0x080045bb, 0x00000004 },
	{ 0x000c209a, 0x00000030 },
	{ 0x0800e5bc, 0000000000 },
	{ 0x0000e5bb, 0x00000004 },
	{ 0x0000e5bc, 0000000000 },
	{ 0x00120000, 0x0000000c },
	{ 0x00120000, 0x00000004 },
	{ 0x001b0002, 0x0000000c },
	{ 0x0000a000, 0x00000004 },
	{ 0x0000e821, 0x00000004 },
	{ 0x0000e800, 0000000000 },
	{ 0x0000e821, 0x00000004 },
	{ 0x0000e82e, 0000000000 },
	{ 0x02cca000, 0x00000004 },
	{ 0x00140000, 0x00000004 },
	{ 0x000ce1cc, 0x00000004 },
	{ 0x050de1cd, 0x00000004 },
	{ 0x000000a7, 0x00000020 },
	{ 0x4200e000, 0000000000 },
	{ 0x000000ae, 0x00000038 },
	{ 0x000ca000, 0x00000004 },
	{ 0x00140000, 0x00000004 },
	{ 0x000c2000, 0x00000004 },
	{ 0x00160000, 0x00000004 },
	{ 0x700ce000, 0x00000004 },
	{ 0x001400aa, 0x00000008 },
	{ 0x4000e000, 0000000000 },
	{ 0x02400000, 0x00000004 },
	{ 0x400ee000, 0x00000004 },
	{ 0x02400000, 0x00000004 },
	{ 0x4000e000, 0000000000 },
	{ 0x000c2000, 0x00000004 },
	{ 0x0240e51b, 0x00000004 },
	{ 0x0080e50a, 0x00000005 },
	{ 0x0080e50b, 0x00000005 },
	{ 0x00220000, 0x00000004 },
	{ 0x000700e4, 0x00000004 },
	{ 0x000000c1, 0x00000038 },
	{ 0x000c209a, 0x00000030 },
	{ 0x0880e5bd, 0x00000005 },
	{ 0x000c2099, 0x00000030 },
	{ 0x0800e5bb, 0x00000005 },
	{ 0x000c209a, 0x00000030 },
	{ 0x0880e5bc, 0x00000005 },
	{ 0x000000c4, 0x00000008 },
	{ 0x0080e5bd, 0x00000005 },
	{ 0x0000e5bb, 0x00000005 },
	{ 0x0080e5bc, 0x00000005 },
	{ 0x00210000, 0x00000004 },
	{ 0x02800000, 0x00000004 },
	{ 0x00c000c8, 0x00000018 },
	{ 0x4180e000, 0x00000040 },
	{ 0x000000ca, 0x00000024 },
	{ 0x01000000, 0x0000000c },
	{ 0x0100e51d, 0x0000000c },
	{ 0x000045bb, 0x00000004 },
	{ 0x000080c4, 0x00000008 },
	{ 0x0000f3ce, 0x00000004 },
	{ 0x0140a000, 0x00000004 },
	{ 0x00cc2000, 0x00000004 },
	{ 0x08c053cf, 0x00000040 },
	{ 0x00008000, 0000000000 },
	{ 0x0000f3d2, 0x00000004 },
	{ 0x0140a000, 0x00000004 },
	{ 0x00cc2000, 0x00000004 },
	{ 0x08c053d3, 0x00000040 },
	{ 0x00008000, 0000000000 },
	{ 0x0000f39d, 0x00000004 },
	{ 0x0140a000, 0x00000004 },
	{ 0x00cc2000, 0x00000004 },
	{ 0x08c0539e, 0x00000040 },
	{ 0x00008000, 0000000000 },
	{ 0x03c00830, 0x00000004 },
	{ 0x4200e000, 0000000000 },
	{ 0x0000a000, 0x00000004 },
	{ 0x200045e0, 0x00000004 },
	{ 0x0000e5e1, 0000000000 },
	{ 0x00000001, 0000000000 },
	{ 0x000700e1, 0x00000004 },
	{ 0x0800e394, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
	{ 0000000000, 0000000000 },
};

static int RADEON_READ_PLL(struct drm_device * dev, int addr)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;

	RADEON_WRITE8(RADEON_CLOCK_CNTL_INDEX, addr & 0x1f);
	return RADEON_READ(RADEON_CLOCK_CNTL_DATA);
}

static u32 RADEON_READ_PCIE(drm_radeon_private_t *dev_priv, int addr)
{
	RADEON_WRITE8(RADEON_PCIE_INDEX, addr & 0xff);
	return RADEON_READ(RADEON_PCIE_DATA);
}

static u32 RADEON_READ_IGPGART(drm_radeon_private_t *dev_priv, int addr)
{
	u32 ret;
	RADEON_WRITE(RADEON_IGPGART_INDEX, addr & 0x7f);
	ret = RADEON_READ(RADEON_IGPGART_DATA);
	RADEON_WRITE(RADEON_IGPGART_INDEX, 0x7f);
	return ret;
}

#if RADEON_FIFO_DEBUG
static void radeon_status(drm_radeon_private_t * dev_priv)
{
	printk("%s:\n", __FUNCTION__);
	printk("RBBM_STATUS = 0x%08x\n",
	       (unsigned int)RADEON_READ(RADEON_RBBM_STATUS));
	printk("CP_RB_RTPR = 0x%08x\n",
	       (unsigned int)RADEON_READ(RADEON_CP_RB_RPTR));
	printk("CP_RB_WTPR = 0x%08x\n",
	       (unsigned int)RADEON_READ(RADEON_CP_RB_WPTR));
	printk("AIC_CNTL = 0x%08x\n",
	       (unsigned int)RADEON_READ(RADEON_AIC_CNTL));
	printk("AIC_STAT = 0x%08x\n",
	       (unsigned int)RADEON_READ(RADEON_AIC_STAT));
	printk("AIC_PT_BASE = 0x%08x\n",
	       (unsigned int)RADEON_READ(RADEON_AIC_PT_BASE));
	printk("TLB_ADDR = 0x%08x\n",
	       (unsigned int)RADEON_READ(RADEON_AIC_TLB_ADDR));
	printk("TLB_DATA = 0x%08x\n",
	       (unsigned int)RADEON_READ(RADEON_AIC_TLB_DATA));
}
#endif

/* ================================================================
 * Engine, FIFO control
 */

static int radeon_do_pixcache_flush(drm_radeon_private_t * dev_priv)
{
	u32 tmp;
	int i;

	dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;

	tmp = RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT);
	tmp |= RADEON_RB3D_DC_FLUSH_ALL;
	RADEON_WRITE(RADEON_RB3D_DSTCACHE_CTLSTAT, tmp);

	for (i = 0; i < dev_priv->usec_timeout; i++) {
		if (!(RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT)
		      & RADEON_RB3D_DC_BUSY)) {
			return 0;
		}
		DRM_UDELAY(1);
	}

#if RADEON_FIFO_DEBUG
	DRM_ERROR("failed!\n");
	radeon_status(dev_priv);
#endif
	return -EBUSY;
}

static int radeon_do_wait_for_fifo(drm_radeon_private_t * dev_priv, int entries)
{
	int i;

	dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;

	for (i = 0; i < dev_priv->usec_timeout; i++) {
		int slots = (RADEON_READ(RADEON_RBBM_STATUS)
			     & RADEON_RBBM_FIFOCNT_MASK);
		if (slots >= entries)
			return 0;
		DRM_UDELAY(1);
	}

#if RADEON_FIFO_DEBUG
	DRM_ERROR("failed!\n");
	radeon_status(dev_priv);
#endif
	return -EBUSY;
}

static int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv)
{
	int i, ret;

	dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;

	ret = radeon_do_wait_for_fifo(dev_priv, 64);
	if (ret)
		return ret;

	for (i = 0; i < dev_priv->usec_timeout; i++) {
		if (!(RADEON_READ(RADEON_RBBM_STATUS)
		      & RADEON_RBBM_ACTIVE)) {
			radeon_do_pixcache_flush(dev_priv);
			return 0;
		}
		DRM_UDELAY(1);
	}

#if RADEON_FIFO_DEBUG
	DRM_ERROR("failed!\n");
	radeon_status(dev_priv);
#endif
	return -EBUSY;
}

/* ================================================================
 * CP control, initialization
 */

/* Load the microcode for the CP */
static void radeon_cp_load_microcode(drm_radeon_private_t * dev_priv)
{
	int i;
	DRM_DEBUG("\n");

	radeon_do_wait_for_idle(dev_priv);

	RADEON_WRITE(RADEON_CP_ME_RAM_ADDR, 0);

	if (dev_priv->microcode_version == UCODE_R200) {
		DRM_INFO("Loading R200 Microcode\n");
		for (i = 0; i < 256; i++) {
			RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
				     R200_cp_microcode[i][1]);
			RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
				     R200_cp_microcode[i][0]);
		}
	} else if (dev_priv->microcode_version == UCODE_R300) {
		DRM_INFO("Loading R300 Microcode\n");
		for (i = 0; i < 256; i++) {
			RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
				     R300_cp_microcode[i][1]);
			RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
				     R300_cp_microcode[i][0]);
		}
	} else {
		for (i = 0; i < 256; i++) {
			RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
				     radeon_cp_microcode[i][1]);
			RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
				     radeon_cp_microcode[i][0]);
		}
	}
}

/* Flush any pending commands to the CP.  This should only be used just
 * prior to a wait for idle, as it informs the engine that the command
 * stream is ending.
 */
static void radeon_do_cp_flush(drm_radeon_private_t * dev_priv)
{
	DRM_DEBUG("\n");
#if 0
	u32 tmp;

	tmp = RADEON_READ(RADEON_CP_RB_WPTR) | (1 << 31);
	RADEON_WRITE(RADEON_CP_RB_WPTR, tmp);
#endif
}

/* Wait for the CP to go idle.
 */
int radeon_do_cp_idle(drm_radeon_private_t * dev_priv)
{
	RING_LOCALS;
	DRM_DEBUG("\n");

	BEGIN_RING(6);

	RADEON_PURGE_CACHE();
	RADEON_PURGE_ZCACHE();
	RADEON_WAIT_UNTIL_IDLE();

	ADVANCE_RING();
	COMMIT_RING();

	return radeon_do_wait_for_idle(dev_priv);
}

/* Start the Command Processor.
 */
static void radeon_do_cp_start(drm_radeon_private_t * dev_priv)
{
	RING_LOCALS;
	DRM_DEBUG("\n");

	radeon_do_wait_for_idle(dev_priv);

	RADEON_WRITE(RADEON_CP_CSQ_CNTL, dev_priv->cp_mode);

	dev_priv->cp_running = 1;

	BEGIN_RING(6);

	RADEON_PURGE_CACHE();
	RADEON_PURGE_ZCACHE();
	RADEON_WAIT_UNTIL_IDLE();

	ADVANCE_RING();
	COMMIT_RING();
}

/* Reset the Command Processor.  This will not flush any pending
 * commands, so you must wait for the CP command stream to complete
 * before calling this routine.
 */
static void radeon_do_cp_reset(drm_radeon_private_t * dev_priv)
{
	u32 cur_read_ptr;
	DRM_DEBUG("\n");

	cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
	RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
	SET_RING_HEAD(dev_priv, cur_read_ptr);
	dev_priv->ring.tail = cur_read_ptr;
}

/* Stop the Command Processor.  This will not flush any pending
 * commands, so you must flush the command stream and wait for the CP
 * to go idle before calling this routine.
 */
static void radeon_do_cp_stop(drm_radeon_private_t * dev_priv)
{
	DRM_DEBUG("\n");

	RADEON_WRITE(RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIDIS_INDDIS);

	dev_priv->cp_running = 0;
}

/* Reset the engine.  This will stop the CP if it is running.
 */
static int radeon_do_engine_reset(struct drm_device * dev)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;
	u32 clock_cntl_index, mclk_cntl, rbbm_soft_reset;
	DRM_DEBUG("\n");

	radeon_do_pixcache_flush(dev_priv);

	clock_cntl_index = RADEON_READ(RADEON_CLOCK_CNTL_INDEX);
	mclk_cntl = RADEON_READ_PLL(dev, RADEON_MCLK_CNTL);

	RADEON_WRITE_PLL(RADEON_MCLK_CNTL, (mclk_cntl |
					    RADEON_FORCEON_MCLKA |
					    RADEON_FORCEON_MCLKB |
					    RADEON_FORCEON_YCLKA |
					    RADEON_FORCEON_YCLKB |
					    RADEON_FORCEON_MC |
					    RADEON_FORCEON_AIC));

	rbbm_soft_reset = RADEON_READ(RADEON_RBBM_SOFT_RESET);

	RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
					      RADEON_SOFT_RESET_CP |
					      RADEON_SOFT_RESET_HI |
					      RADEON_SOFT_RESET_SE |
					      RADEON_SOFT_RESET_RE |
					      RADEON_SOFT_RESET_PP |
					      RADEON_SOFT_RESET_E2 |
					      RADEON_SOFT_RESET_RB));
	RADEON_READ(RADEON_RBBM_SOFT_RESET);
	RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset &
					      ~(RADEON_SOFT_RESET_CP |
						RADEON_SOFT_RESET_HI |
						RADEON_SOFT_RESET_SE |
						RADEON_SOFT_RESET_RE |
						RADEON_SOFT_RESET_PP |
						RADEON_SOFT_RESET_E2 |
						RADEON_SOFT_RESET_RB)));
	RADEON_READ(RADEON_RBBM_SOFT_RESET);

	RADEON_WRITE_PLL(RADEON_MCLK_CNTL, mclk_cntl);
	RADEON_WRITE(RADEON_CLOCK_CNTL_INDEX, clock_cntl_index);
	RADEON_WRITE(RADEON_RBBM_SOFT_RESET, rbbm_soft_reset);

	/* Reset the CP ring */
	radeon_do_cp_reset(dev_priv);

	/* The CP is no longer running after an engine reset */
	dev_priv->cp_running = 0;

	/* Reset any pending vertex, indirect buffers */
	radeon_freelist_reset(dev);

	return 0;
}

static void radeon_cp_init_ring_buffer(struct drm_device * dev,
				       drm_radeon_private_t * dev_priv)
{
	u32 ring_start, cur_read_ptr;
	u32 tmp;
	
	/* Initialize the memory controller. With new memory map, the fb location
	 * is not changed, it should have been properly initialized already. Part
	 * of the problem is that the code below is bogus, assuming the GART is
	 * always appended to the fb which is not necessarily the case
	 */
	if (!dev_priv->new_memmap)
		RADEON_WRITE(RADEON_MC_FB_LOCATION,
			     ((dev_priv->gart_vm_start - 1) & 0xffff0000)
			     | (dev_priv->fb_location >> 16));

#if __OS_HAS_AGP
	if (dev_priv->flags & RADEON_IS_AGP) {
		RADEON_WRITE(RADEON_AGP_BASE, (unsigned int)dev->agp->base);
		RADEON_WRITE(RADEON_MC_AGP_LOCATION,
			     (((dev_priv->gart_vm_start - 1 +
				dev_priv->gart_size) & 0xffff0000) |
			      (dev_priv->gart_vm_start >> 16)));

		ring_start = (dev_priv->cp_ring->offset
			      - dev->agp->base
			      + dev_priv->gart_vm_start);
	} else
#endif
		ring_start = (dev_priv->cp_ring->offset
			      - (unsigned long)dev->sg->virtual
			      + dev_priv->gart_vm_start);

	RADEON_WRITE(RADEON_CP_RB_BASE, ring_start);

	/* Set the write pointer delay */
	RADEON_WRITE(RADEON_CP_RB_WPTR_DELAY, 0);

	/* Initialize the ring buffer's read and write pointers */
	cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
	RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
	SET_RING_HEAD(dev_priv, cur_read_ptr);
	dev_priv->ring.tail = cur_read_ptr;

#if __OS_HAS_AGP
	if (dev_priv->flags & RADEON_IS_AGP) {
		RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR,
			     dev_priv->ring_rptr->offset
			     - dev->agp->base + dev_priv->gart_vm_start);
	} else
#endif
	{
		struct drm_sg_mem *entry = dev->sg;
		unsigned long tmp_ofs, page_ofs;

		tmp_ofs = dev_priv->ring_rptr->offset -
				(unsigned long)dev->sg->virtual;
		page_ofs = tmp_ofs >> PAGE_SHIFT;

		RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR, entry->busaddr[page_ofs]);
		DRM_DEBUG("ring rptr: offset=0x%08lx handle=0x%08lx\n",
			  (unsigned long)entry->busaddr[page_ofs],
			  entry->handle + tmp_ofs);
	}

	/* Set ring buffer size */
#ifdef __BIG_ENDIAN
	RADEON_WRITE(RADEON_CP_RB_CNTL,
		     RADEON_BUF_SWAP_32BIT |
		     (dev_priv->ring.fetch_size_l2ow << 18) |
		     (dev_priv->ring.rptr_update_l2qw << 8) |
		     dev_priv->ring.size_l2qw);
#else
	RADEON_WRITE(RADEON_CP_RB_CNTL,
		     (dev_priv->ring.fetch_size_l2ow << 18) |
		     (dev_priv->ring.rptr_update_l2qw << 8) |
		     dev_priv->ring.size_l2qw);
#endif

	/* Start with assuming that writeback doesn't work */
	dev_priv->writeback_works = 0;

	/* Initialize the scratch register pointer.  This will cause
	 * the scratch register values to be written out to memory
	 * whenever they are updated.
	 *
	 * We simply put this behind the ring read pointer, this works
	 * with PCI GART as well as (whatever kind of) AGP GART
	 */
	RADEON_WRITE(RADEON_SCRATCH_ADDR, RADEON_READ(RADEON_CP_RB_RPTR_ADDR)
		     + RADEON_SCRATCH_REG_OFFSET);

	dev_priv->scratch = ((__volatile__ u32 *)
			     dev_priv->ring_rptr->handle +
			     (RADEON_SCRATCH_REG_OFFSET / sizeof(u32)));

	RADEON_WRITE(RADEON_SCRATCH_UMSK, 0x7);

	/* Turn on bus mastering */
	tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
	RADEON_WRITE(RADEON_BUS_CNTL, tmp);

	dev_priv->sarea_priv->last_frame = dev_priv->scratch[0] = 0;
	RADEON_WRITE(RADEON_LAST_FRAME_REG, dev_priv->sarea_priv->last_frame);

	dev_priv->sarea_priv->last_dispatch = dev_priv->scratch[1] = 0;
	RADEON_WRITE(RADEON_LAST_DISPATCH_REG,
		     dev_priv->sarea_priv->last_dispatch);

	dev_priv->sarea_priv->last_clear = dev_priv->scratch[2] = 0;
	RADEON_WRITE(RADEON_LAST_CLEAR_REG, dev_priv->sarea_priv->last_clear);

	radeon_do_wait_for_idle(dev_priv);

	/* Sync everything up */
	RADEON_WRITE(RADEON_ISYNC_CNTL,
		     (RADEON_ISYNC_ANY2D_IDLE3D |
		      RADEON_ISYNC_ANY3D_IDLE2D |
		      RADEON_ISYNC_WAIT_IDLEGUI |
		      RADEON_ISYNC_CPSCRATCH_IDLEGUI));

}

static void radeon_test_writeback(drm_radeon_private_t * dev_priv)
{
	u32 tmp;

	/* Writeback doesn't seem to work everywhere, test it here and possibly
	 * enable it if it appears to work
	 */
	DRM_WRITE32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1), 0);
	RADEON_WRITE(RADEON_SCRATCH_REG1, 0xdeadbeef);

	for (tmp = 0; tmp < dev_priv->usec_timeout; tmp++) {
		if (DRM_READ32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1)) ==
		    0xdeadbeef)
			break;
		DRM_UDELAY(1);
	}

	if (tmp < dev_priv->usec_timeout) {
		dev_priv->writeback_works = 1;
		DRM_INFO("writeback test succeeded in %d usecs\n", tmp);
	} else {
		dev_priv->writeback_works = 0;
		DRM_INFO("writeback test failed\n");
	}
	if (radeon_no_wb == 1) {
		dev_priv->writeback_works = 0;
		DRM_INFO("writeback forced off\n");
	}

	if (!dev_priv->writeback_works) {
		/* Disable writeback to avoid unnecessary bus master transfers */
		RADEON_WRITE(RADEON_CP_RB_CNTL, RADEON_READ(RADEON_CP_RB_CNTL) | RADEON_RB_NO_UPDATE);
		RADEON_WRITE(RADEON_SCRATCH_UMSK, 0);
	}
}

/* Enable or disable IGP GART on the chip */
static void radeon_set_igpgart(drm_radeon_private_t * dev_priv, int on)
{
	u32 temp, tmp;

	tmp = RADEON_READ(RADEON_AIC_CNTL);
	DRM_DEBUG("setting igpgart AIC CNTL is %08X\n", tmp);
	if (on) {
		DRM_DEBUG("programming igpgart %08X %08lX %08X\n",
			 dev_priv->gart_vm_start,
			 (long)dev_priv->gart_info.bus_addr,
			 dev_priv->gart_size);

		RADEON_WRITE_IGPGART(RADEON_IGPGART_UNK_18, 0x1000);
		RADEON_WRITE_IGPGART(RADEON_IGPGART_ENABLE, 0x1);
		RADEON_WRITE_IGPGART(RADEON_IGPGART_CTRL, 0x42040800);
		RADEON_WRITE_IGPGART(RADEON_IGPGART_BASE_ADDR,
				     dev_priv->gart_info.bus_addr);

		temp = RADEON_READ_IGPGART(dev_priv, RADEON_IGPGART_UNK_39);
		RADEON_WRITE_IGPGART(RADEON_IGPGART_UNK_39, temp);

		RADEON_WRITE(RADEON_AGP_BASE, (unsigned int)dev_priv->gart_vm_start);
		dev_priv->gart_size = 32*1024*1024;
		RADEON_WRITE(RADEON_MC_AGP_LOCATION,
			     (((dev_priv->gart_vm_start - 1 +
			       dev_priv->gart_size) & 0xffff0000) |
			     (dev_priv->gart_vm_start >> 16)));

		temp = RADEON_READ_IGPGART(dev_priv, RADEON_IGPGART_ENABLE);
		RADEON_WRITE_IGPGART(RADEON_IGPGART_ENABLE, temp);

		RADEON_READ_IGPGART(dev_priv, RADEON_IGPGART_FLUSH);
		RADEON_WRITE_IGPGART(RADEON_IGPGART_FLUSH, 0x1);
		RADEON_READ_IGPGART(dev_priv, RADEON_IGPGART_FLUSH);
		RADEON_WRITE_IGPGART(RADEON_IGPGART_FLUSH, 0x0);
       }
}

static void radeon_set_pciegart(drm_radeon_private_t * dev_priv, int on)
{
	u32 tmp = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_TX_GART_CNTL);
	if (on) {

		DRM_DEBUG("programming pcie %08X %08lX %08X\n",
			  dev_priv->gart_vm_start,
			  (long)dev_priv->gart_info.bus_addr,
			  dev_priv->gart_size);
		RADEON_WRITE_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO,
				  dev_priv->gart_vm_start);
		RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_BASE,
				  dev_priv->gart_info.bus_addr);
		RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_START_LO,
				  dev_priv->gart_vm_start);
		RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_END_LO,
				  dev_priv->gart_vm_start +
				  dev_priv->gart_size - 1);

		RADEON_WRITE(RADEON_MC_AGP_LOCATION, 0xffffffc0);	/* ?? */

		RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
				  RADEON_PCIE_TX_GART_EN);
	} else {
		RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
				  tmp & ~RADEON_PCIE_TX_GART_EN);
	}
}

/* Enable or disable PCI GART on the chip */
static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
{
	u32 tmp;

	if (dev_priv->flags & RADEON_IS_IGPGART) {
		radeon_set_igpgart(dev_priv, on);
		return;
	}

	if (dev_priv->flags & RADEON_IS_PCIE) {
		radeon_set_pciegart(dev_priv, on);
		return;
	}

 	tmp = RADEON_READ(RADEON_AIC_CNTL);

	if (on) {
		RADEON_WRITE(RADEON_AIC_CNTL,
			     tmp | RADEON_PCIGART_TRANSLATE_EN);

		/* set PCI GART page-table base address
		 */
		RADEON_WRITE(RADEON_AIC_PT_BASE, dev_priv->gart_info.bus_addr);

		/* set address range for PCI address translate
		 */
		RADEON_WRITE(RADEON_AIC_LO_ADDR, dev_priv->gart_vm_start);
		RADEON_WRITE(RADEON_AIC_HI_ADDR, dev_priv->gart_vm_start
			     + dev_priv->gart_size - 1);

		/* Turn off AGP aperture -- is this required for PCI GART?
		 */
		RADEON_WRITE(RADEON_MC_AGP_LOCATION, 0xffffffc0);	/* ?? */
		RADEON_WRITE(RADEON_AGP_COMMAND, 0);	/* clear AGP_COMMAND */
	} else {
		RADEON_WRITE(RADEON_AIC_CNTL,
			     tmp & ~RADEON_PCIGART_TRANSLATE_EN);
	}
}

static int radeon_do_init_cp(struct drm_device * dev, drm_radeon_init_t * init)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;

	DRM_DEBUG("\n");

	/* if we require new memory map but we don't have it fail */
	if ((dev_priv->flags & RADEON_NEW_MEMMAP) && !dev_priv->new_memmap) {
		DRM_ERROR("Cannot initialise DRM on this card\nThis card requires a new X.org DDX for 3D\n");
		radeon_do_cleanup_cp(dev);
		return -EINVAL;
	}

	if (init->is_pci && (dev_priv->flags & RADEON_IS_AGP))
	{
		DRM_DEBUG("Forcing AGP card to PCI mode\n");
		dev_priv->flags &= ~RADEON_IS_AGP;
	}
	else if (!(dev_priv->flags & (RADEON_IS_AGP | RADEON_IS_PCI | RADEON_IS_PCIE))
		 && !init->is_pci)
	{
		DRM_DEBUG("Restoring AGP flag\n");
		dev_priv->flags |= RADEON_IS_AGP;
	}

	if ((!(dev_priv->flags & RADEON_IS_AGP)) && !dev->sg) {
		DRM_ERROR("PCI GART memory not allocated!\n");
		radeon_do_cleanup_cp(dev);
		return -EINVAL;
	}

	dev_priv->usec_timeout = init->usec_timeout;
	if (dev_priv->usec_timeout < 1 ||
	    dev_priv->usec_timeout > RADEON_MAX_USEC_TIMEOUT) {
		DRM_DEBUG("TIMEOUT problem!\n");
		radeon_do_cleanup_cp(dev);
		return -EINVAL;
	}

	/* Enable vblank on CRTC1 for older X servers
	 */
	dev_priv->vblank_crtc = DRM_RADEON_VBLANK_CRTC1;

	switch(init->func) {
	case RADEON_INIT_R200_CP:
		dev_priv->microcode_version = UCODE_R200;
		break;
	case RADEON_INIT_R300_CP:
		dev_priv->microcode_version = UCODE_R300;
		break;
	default:
		dev_priv->microcode_version = UCODE_R100;
	}

	dev_priv->do_boxes = 0;
	dev_priv->cp_mode = init->cp_mode;

	/* We don't support anything other than bus-mastering ring mode,
	 * but the ring can be in either AGP or PCI space for the ring
	 * read pointer.
	 */
	if ((init->cp_mode != RADEON_CSQ_PRIBM_INDDIS) &&
	    (init->cp_mode != RADEON_CSQ_PRIBM_INDBM)) {
		DRM_DEBUG("BAD cp_mode (%x)!\n", init->cp_mode);
		radeon_do_cleanup_cp(dev);
		return -EINVAL;
	}

	switch (init->fb_bpp) {
	case 16:
		dev_priv->color_fmt = RADEON_COLOR_FORMAT_RGB565;
		break;
	case 32:
	default:
		dev_priv->color_fmt = RADEON_COLOR_FORMAT_ARGB8888;
		break;
	}
	dev_priv->front_offset = init->front_offset;
	dev_priv->front_pitch = init->front_pitch;
	dev_priv->back_offset = init->back_offset;
	dev_priv->back_pitch = init->back_pitch;

	switch (init->depth_bpp) {
	case 16:
		dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_16BIT_INT_Z;
		break;
	case 32:
	default:
		dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_24BIT_INT_Z;
		break;
	}
	dev_priv->depth_offset = init->depth_offset;
	dev_priv->depth_pitch = init->depth_pitch;

	/* Hardware state for depth clears.  Remove this if/when we no
	 * longer clear the depth buffer with a 3D rectangle.  Hard-code
	 * all values to prevent unwanted 3D state from slipping through
	 * and screwing with the clear operation.
	 */
	dev_priv->depth_clear.rb3d_cntl = (RADEON_PLANE_MASK_ENABLE |
					   (dev_priv->color_fmt << 10) |
					   (dev_priv->microcode_version ==
					    UCODE_R100 ? RADEON_ZBLOCK16 : 0));

	dev_priv->depth_clear.rb3d_zstencilcntl =
	    (dev_priv->depth_fmt |
	     RADEON_Z_TEST_ALWAYS |
	     RADEON_STENCIL_TEST_ALWAYS |
	     RADEON_STENCIL_S_FAIL_REPLACE |
	     RADEON_STENCIL_ZPASS_REPLACE |
	     RADEON_STENCIL_ZFAIL_REPLACE | RADEON_Z_WRITE_ENABLE);

	dev_priv->depth_clear.se_cntl = (RADEON_FFACE_CULL_CW |
					 RADEON_BFACE_SOLID |
					 RADEON_FFACE_SOLID |
					 RADEON_FLAT_SHADE_VTX_LAST |
					 RADEON_DIFFUSE_SHADE_FLAT |
					 RADEON_ALPHA_SHADE_FLAT |
					 RADEON_SPECULAR_SHADE_FLAT |
					 RADEON_FOG_SHADE_FLAT |
					 RADEON_VTX_PIX_CENTER_OGL |
					 RADEON_ROUND_MODE_TRUNC |
					 RADEON_ROUND_PREC_8TH_PIX);


	dev_priv->ring_offset = init->ring_offset;
	dev_priv->ring_rptr_offset = init->ring_rptr_offset;
	dev_priv->buffers_offset = init->buffers_offset;
	dev_priv->gart_textures_offset = init->gart_textures_offset;

	dev_priv->sarea = drm_getsarea(dev);
	if (!dev_priv->sarea) {
		DRM_ERROR("could not find sarea!\n");
		radeon_do_cleanup_cp(dev);
		return -EINVAL;
	}

	dev_priv->cp_ring = drm_core_findmap(dev, init->ring_offset);
	if (!dev_priv->cp_ring) {
		DRM_ERROR("could not find cp ring region!\n");
		radeon_do_cleanup_cp(dev);
		return -EINVAL;
	}
	dev_priv->ring_rptr = drm_core_findmap(dev, init->ring_rptr_offset);
	if (!dev_priv->ring_rptr) {
		DRM_ERROR("could not find ring read pointer!\n");
		radeon_do_cleanup_cp(dev);
		return -EINVAL;
	}
	dev->agp_buffer_token = init->buffers_offset;
	dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
	if (!dev->agp_buffer_map) {
		DRM_ERROR("could not find dma buffer region!\n");
		radeon_do_cleanup_cp(dev);
		return -EINVAL;
	}

	if (init->gart_textures_offset) {
		dev_priv->gart_textures =
		    drm_core_findmap(dev, init->gart_textures_offset);
		if (!dev_priv->gart_textures) {
			DRM_ERROR("could not find GART texture region!\n");
			radeon_do_cleanup_cp(dev);
			return -EINVAL;
		}
	}

	dev_priv->sarea_priv =
	    (drm_radeon_sarea_t *) ((u8 *) dev_priv->sarea->handle +
				    init->sarea_priv_offset);

#if __OS_HAS_AGP
	if (dev_priv->flags & RADEON_IS_AGP) {
		drm_core_ioremap(dev_priv->cp_ring, dev);
		drm_core_ioremap(dev_priv->ring_rptr, dev);
		drm_core_ioremap(dev->agp_buffer_map, dev);
		if (!dev_priv->cp_ring->handle ||
		    !dev_priv->ring_rptr->handle ||
		    !dev->agp_buffer_map->handle) {
			DRM_ERROR("could not find ioremap agp regions!\n");
			radeon_do_cleanup_cp(dev);
			return -EINVAL;
		}
	} else
#endif
	{
		dev_priv->cp_ring->handle = (void *)dev_priv->cp_ring->offset;
		dev_priv->ring_rptr->handle =
		    (void *)dev_priv->ring_rptr->offset;
		dev->agp_buffer_map->handle =
		    (void *)dev->agp_buffer_map->offset;

		DRM_DEBUG("dev_priv->cp_ring->handle %p\n",
			  dev_priv->cp_ring->handle);
		DRM_DEBUG("dev_priv->ring_rptr->handle %p\n",
			  dev_priv->ring_rptr->handle);
		DRM_DEBUG("dev->agp_buffer_map->handle %p\n",
			  dev->agp_buffer_map->handle);
	}

	dev_priv->fb_location = (RADEON_READ(RADEON_MC_FB_LOCATION)
				 & 0xffff) << 16;
	dev_priv->fb_size = 
		((RADEON_READ(RADEON_MC_FB_LOCATION) & 0xffff0000u) + 0x10000)
		- dev_priv->fb_location;

	dev_priv->front_pitch_offset = (((dev_priv->front_pitch / 64) << 22) |
					((dev_priv->front_offset
					  + dev_priv->fb_location) >> 10));

	dev_priv->back_pitch_offset = (((dev_priv->back_pitch / 64) << 22) |
				       ((dev_priv->back_offset
					 + dev_priv->fb_location) >> 10));

	dev_priv->depth_pitch_offset = (((dev_priv->depth_pitch / 64) << 22) |
					((dev_priv->depth_offset
					  + dev_priv->fb_location) >> 10));

	dev_priv->gart_size = init->gart_size;

	/* New let's set the memory map ... */
	if (dev_priv->new_memmap) {
		u32 base = 0;

		DRM_INFO("Setting GART location based on new memory map\n");

		/* If using AGP, try to locate the AGP aperture at the same
		 * location in the card and on the bus, though we have to
		 * align it down.
		 */
#if __OS_HAS_AGP
		if (dev_priv->flags & RADEON_IS_AGP) {
			base = dev->agp->base;
			/* Check if valid */
			if ((base + dev_priv->gart_size - 1) >= dev_priv->fb_location &&
			    base < (dev_priv->fb_location + dev_priv->fb_size - 1)) {
				DRM_INFO("Can't use AGP base @0x%08lx, won't fit\n",
					 dev->agp->base);
				base = 0;
			}
		}
#endif
		/* If not or if AGP is at 0 (Macs), try to put it elsewhere */
		if (base == 0) {
			base = dev_priv->fb_location + dev_priv->fb_size;
			if (base < dev_priv->fb_location ||
			    ((base + dev_priv->gart_size) & 0xfffffffful) < base)
				base = dev_priv->fb_location
					- dev_priv->gart_size;
		}		
		dev_priv->gart_vm_start = base & 0xffc00000u;
		if (dev_priv->gart_vm_start != base)
			DRM_INFO("GART aligned down from 0x%08x to 0x%08x\n",
				 base, dev_priv->gart_vm_start);
	} else {
		DRM_INFO("Setting GART location based on old memory map\n");
		dev_priv->gart_vm_start = dev_priv->fb_location +
			RADEON_READ(RADEON_CONFIG_APER_SIZE);
	}

#if __OS_HAS_AGP
	if (dev_priv->flags & RADEON_IS_AGP)
		dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
						 - dev->agp->base
						 + dev_priv->gart_vm_start);
	else
#endif
		dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
					- (unsigned long)dev->sg->virtual
					+ dev_priv->gart_vm_start);

	DRM_DEBUG("dev_priv->gart_size %d\n", dev_priv->gart_size);
	DRM_DEBUG("dev_priv->gart_vm_start 0x%x\n", dev_priv->gart_vm_start);
	DRM_DEBUG("dev_priv->gart_buffers_offset 0x%lx\n",
		  dev_priv->gart_buffers_offset);

	dev_priv->ring.start = (u32 *) dev_priv->cp_ring->handle;
	dev_priv->ring.end = ((u32 *) dev_priv->cp_ring->handle
			      + init->ring_size / sizeof(u32));
	dev_priv->ring.size = init->ring_size;
	dev_priv->ring.size_l2qw = drm_order(init->ring_size / 8);

	dev_priv->ring.rptr_update = /* init->rptr_update */ 4096;
	dev_priv->ring.rptr_update_l2qw = drm_order( /* init->rptr_update */ 4096 / 8);

	dev_priv->ring.fetch_size = /* init->fetch_size */ 32;
	dev_priv->ring.fetch_size_l2ow = drm_order( /* init->fetch_size */ 32 / 16);

	dev_priv->ring.tail_mask = (dev_priv->ring.size / sizeof(u32)) - 1;

	dev_priv->ring.high_mark = RADEON_RING_HIGH_MARK;

#if __OS_HAS_AGP
	if (dev_priv->flags & RADEON_IS_AGP) {
		/* Turn off PCI GART */
		radeon_set_pcigart(dev_priv, 0);
	} else
#endif
	{
		/* if we have an offset set from userspace */
		if (dev_priv->pcigart_offset_set) {
			dev_priv->gart_info.bus_addr =
			    dev_priv->pcigart_offset + dev_priv->fb_location;
			dev_priv->gart_info.mapping.offset =
			    dev_priv->gart_info.bus_addr;
			dev_priv->gart_info.mapping.size =
			    dev_priv->gart_info.table_size;

			drm_core_ioremap(&dev_priv->gart_info.mapping, dev);
			dev_priv->gart_info.addr =
			    dev_priv->gart_info.mapping.handle;

			if (dev_priv->flags & RADEON_IS_PCIE)
				dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCIE;
			else
				dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
			dev_priv->gart_info.gart_table_location =
			    DRM_ATI_GART_FB;

			DRM_DEBUG("Setting phys_pci_gart to %p %08lX\n",
				  dev_priv->gart_info.addr,
				  dev_priv->pcigart_offset);
		} else {
			if (dev_priv->flags & RADEON_IS_IGPGART)
				dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_IGP;
			else
				dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
			dev_priv->gart_info.gart_table_location =
			    DRM_ATI_GART_MAIN;
			dev_priv->gart_info.addr = NULL;
			dev_priv->gart_info.bus_addr = 0;
			if (dev_priv->flags & RADEON_IS_PCIE) {
				DRM_ERROR
				    ("Cannot use PCI Express without GART in FB memory\n");
				radeon_do_cleanup_cp(dev);
				return -EINVAL;
			}
		}

		if (!drm_ati_pcigart_init(dev, &dev_priv->gart_info)) {
			DRM_ERROR("failed to init PCI GART!\n");
			radeon_do_cleanup_cp(dev);
			return -ENOMEM;
		}

		/* Turn on PCI GART */
		radeon_set_pcigart(dev_priv, 1);
	}

	radeon_cp_load_microcode(dev_priv);
	radeon_cp_init_ring_buffer(dev, dev_priv);

	dev_priv->last_buf = 0;

	radeon_do_engine_reset(dev);
	radeon_test_writeback(dev_priv);

	return 0;
}

static int radeon_do_cleanup_cp(struct drm_device * dev)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;
	DRM_DEBUG("\n");

	/* Make sure interrupts are disabled here because the uninstall ioctl
	 * may not have been called from userspace and after dev_private
	 * is freed, it's too late.
	 */
	if (dev->irq_enabled)
		drm_irq_uninstall(dev);

#if __OS_HAS_AGP
	if (dev_priv->flags & RADEON_IS_AGP) {
		if (dev_priv->cp_ring != NULL) {
			drm_core_ioremapfree(dev_priv->cp_ring, dev);
			dev_priv->cp_ring = NULL;
		}
		if (dev_priv->ring_rptr != NULL) {
			drm_core_ioremapfree(dev_priv->ring_rptr, dev);
			dev_priv->ring_rptr = NULL;
		}
		if (dev->agp_buffer_map != NULL) {
			drm_core_ioremapfree(dev->agp_buffer_map, dev);
			dev->agp_buffer_map = NULL;
		}
	} else
#endif
	{

		if (dev_priv->gart_info.bus_addr) {
			/* Turn off PCI GART */
			radeon_set_pcigart(dev_priv, 0);
			if (!drm_ati_pcigart_cleanup(dev, &dev_priv->gart_info))
				DRM_ERROR("failed to cleanup PCI GART!\n");
		}

		if (dev_priv->gart_info.gart_table_location == DRM_ATI_GART_FB)
		{
			drm_core_ioremapfree(&dev_priv->gart_info.mapping, dev);
			dev_priv->gart_info.addr = 0;
		}
	}
	/* only clear to the start of flags */
	memset(dev_priv, 0, offsetof(drm_radeon_private_t, flags));

	return 0;
}

/* This code will reinit the Radeon CP hardware after a resume from disc.
 * AFAIK, it would be very difficult to pickle the state at suspend time, so
 * here we make sure that all Radeon hardware initialisation is re-done without
 * affecting running applications.
 *
 * Charl P. Botha <http://cpbotha.net>
 */
static int radeon_do_resume_cp(struct drm_device * dev)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;

	if (!dev_priv) {
		DRM_ERROR("Called with no initialization\n");
		return -EINVAL;
	}

	DRM_DEBUG("Starting radeon_do_resume_cp()\n");

#if __OS_HAS_AGP
	if (dev_priv->flags & RADEON_IS_AGP) {
		/* Turn off PCI GART */
		radeon_set_pcigart(dev_priv, 0);
	} else
#endif
	{
		/* Turn on PCI GART */
		radeon_set_pcigart(dev_priv, 1);
	}

	radeon_cp_load_microcode(dev_priv);
	radeon_cp_init_ring_buffer(dev, dev_priv);

	radeon_do_engine_reset(dev);

	DRM_DEBUG("radeon_do_resume_cp() complete\n");

	return 0;
}

int radeon_cp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	drm_radeon_init_t *init = data;

	LOCK_TEST_WITH_RETURN(dev, file_priv);

	if (init->func == RADEON_INIT_R300_CP)
		r300_init_reg_flags();

	switch (init->func) {
	case RADEON_INIT_CP:
	case RADEON_INIT_R200_CP:
	case RADEON_INIT_R300_CP:
		return radeon_do_init_cp(dev, init);
	case RADEON_CLEANUP_CP:
		return radeon_do_cleanup_cp(dev);
	}

	return -EINVAL;
}

int radeon_cp_start(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;
	DRM_DEBUG("\n");

	LOCK_TEST_WITH_RETURN(dev, file_priv);

	if (dev_priv->cp_running) {
		DRM_DEBUG("%s while CP running\n", __FUNCTION__);
		return 0;
	}
	if (dev_priv->cp_mode == RADEON_CSQ_PRIDIS_INDDIS) {
		DRM_DEBUG("%s called with bogus CP mode (%d)\n",
			  __FUNCTION__, dev_priv->cp_mode);
		return 0;
	}

	radeon_do_cp_start(dev_priv);

	return 0;
}

/* Stop the CP.  The engine must have been idled before calling this
 * routine.
 */
int radeon_cp_stop(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;
	drm_radeon_cp_stop_t *stop = data;
	int ret;
	DRM_DEBUG("\n");

	LOCK_TEST_WITH_RETURN(dev, file_priv);

	if (!dev_priv->cp_running)
		return 0;

	/* Flush any pending CP commands.  This ensures any outstanding
	 * commands are exectuted by the engine before we turn it off.
	 */
	if (stop->flush) {
		radeon_do_cp_flush(dev_priv);
	}

	/* If we fail to make the engine go idle, we return an error
	 * code so that the DRM ioctl wrapper can try again.
	 */
	if (stop->idle) {
		ret = radeon_do_cp_idle(dev_priv);
		if (ret)
			return ret;
	}

	/* Finally, we can turn off the CP.  If the engine isn't idle,
	 * we will get some dropped triangles as they won't be fully
	 * rendered before the CP is shut down.
	 */
	radeon_do_cp_stop(dev_priv);

	/* Reset the engine */
	radeon_do_engine_reset(dev);

	return 0;
}

void radeon_do_release(struct drm_device * dev)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;
	int i, ret;

	if (dev_priv) {
		if (dev_priv->cp_running) {
			/* Stop the cp */
			while ((ret = radeon_do_cp_idle(dev_priv)) != 0) {
				DRM_DEBUG("radeon_do_cp_idle %d\n", ret);
#ifdef __linux__
				schedule();
#else
#if defined(__FreeBSD__) && __FreeBSD_version > 500000
				msleep(&ret, &dev->dev_lock, PZERO, "rdnrel",
				       1);
#else
				tsleep(&ret, PZERO, "rdnrel", 1);
#endif
#endif
			}
			radeon_do_cp_stop(dev_priv);
			radeon_do_engine_reset(dev);
		}

		/* Disable *all* interrupts */
		if (dev_priv->mmio)	/* remove this after permanent addmaps */
			RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);

		if (dev_priv->mmio) {	/* remove all surfaces */
			for (i = 0; i < RADEON_MAX_SURFACES; i++) {
				RADEON_WRITE(RADEON_SURFACE0_INFO + 16 * i, 0);
				RADEON_WRITE(RADEON_SURFACE0_LOWER_BOUND +
					     16 * i, 0);
				RADEON_WRITE(RADEON_SURFACE0_UPPER_BOUND +
					     16 * i, 0);
			}
		}

		/* Free memory heap structures */
		radeon_mem_takedown(&(dev_priv->gart_heap));
		radeon_mem_takedown(&(dev_priv->fb_heap));

		/* deallocate kernel resources */
		radeon_do_cleanup_cp(dev);
	}
}

/* Just reset the CP ring.  Called as part of an X Server engine reset.
 */
int radeon_cp_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;
	DRM_DEBUG("\n");

	LOCK_TEST_WITH_RETURN(dev, file_priv);

	if (!dev_priv) {
		DRM_DEBUG("%s called before init done\n", __FUNCTION__);
		return -EINVAL;
	}

	radeon_do_cp_reset(dev_priv);

	/* The CP is no longer running after an engine reset */
	dev_priv->cp_running = 0;

	return 0;
}

int radeon_cp_idle(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;
	DRM_DEBUG("\n");

	LOCK_TEST_WITH_RETURN(dev, file_priv);

	return radeon_do_cp_idle(dev_priv);
}

/* Added by Charl P. Botha to call radeon_do_resume_cp().
 */
int radeon_cp_resume(struct drm_device *dev, void *data, struct drm_file *file_priv)
{

	return radeon_do_resume_cp(dev);
}

int radeon_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	DRM_DEBUG("\n");

	LOCK_TEST_WITH_RETURN(dev, file_priv);

	return radeon_do_engine_reset(dev);
}

/* ================================================================
 * Fullscreen mode
 */

/* KW: Deprecated to say the least:
 */
int radeon_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	return 0;
}

/* ================================================================
 * Freelist management
 */

/* Original comment: FIXME: ROTATE_BUFS is a hack to cycle through
 *   bufs until freelist code is used.  Note this hides a problem with
 *   the scratch register * (used to keep track of last buffer
 *   completed) being written to before * the last buffer has actually
 *   completed rendering.
 *
 * KW:  It's also a good way to find free buffers quickly.
 *
 * KW: Ideally this loop wouldn't exist, and freelist_get wouldn't
 * sleep.  However, bugs in older versions of radeon_accel.c mean that
 * we essentially have to do this, else old clients will break.
 *
 * However, it does leave open a potential deadlock where all the
 * buffers are held by other clients, which can't release them because
 * they can't get the lock.
 */

struct drm_buf *radeon_freelist_get(struct drm_device * dev)
{
	struct drm_device_dma *dma = dev->dma;
	drm_radeon_private_t *dev_priv = dev->dev_private;
	drm_radeon_buf_priv_t *buf_priv;
	struct drm_buf *buf;
	int i, t;
	int start;

	if (++dev_priv->last_buf >= dma->buf_count)
		dev_priv->last_buf = 0;

	start = dev_priv->last_buf;

	for (t = 0; t < dev_priv->usec_timeout; t++) {
		u32 done_age = GET_SCRATCH(1);
		DRM_DEBUG("done_age = %d\n", done_age);
		for (i = start; i < dma->buf_count; i++) {
			buf = dma->buflist[i];
			buf_priv = buf->dev_private;
			if (buf->file_priv == NULL || (buf->pending &&
						       buf_priv->age <=
						       done_age)) {
				dev_priv->stats.requested_bufs++;
				buf->pending = 0;
				return buf;
			}
			start = 0;
		}

		if (t) {
			DRM_UDELAY(1);
			dev_priv->stats.freelist_loops++;
		}
	}

	DRM_DEBUG("returning NULL!\n");
	return NULL;
}

#if 0
struct drm_buf *radeon_freelist_get(struct drm_device * dev)
{
	struct drm_device_dma *dma = dev->dma;
	drm_radeon_private_t *dev_priv = dev->dev_private;
	drm_radeon_buf_priv_t *buf_priv;
	struct drm_buf *buf;
	int i, t;
	int start;
	u32 done_age = DRM_READ32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1));

	if (++dev_priv->last_buf >= dma->buf_count)
		dev_priv->last_buf = 0;

	start = dev_priv->last_buf;
	dev_priv->stats.freelist_loops++;

	for (t = 0; t < 2; t++) {
		for (i = start; i < dma->buf_count; i++) {
			buf = dma->buflist[i];
			buf_priv = buf->dev_private;
			if (buf->file_priv == 0 || (buf->pending &&
						    buf_priv->age <=
						    done_age)) {
				dev_priv->stats.requested_bufs++;
				buf->pending = 0;
				return buf;
			}
		}
		start = 0;
	}

	return NULL;
}
#endif

void radeon_freelist_reset(struct drm_device * dev)
{
	struct drm_device_dma *dma = dev->dma;
	drm_radeon_private_t *dev_priv = dev->dev_private;
	int i;

	dev_priv->last_buf = 0;
	for (i = 0; i < dma->buf_count; i++) {
		struct drm_buf *buf = dma->buflist[i];
		drm_radeon_buf_priv_t *buf_priv = buf->dev_private;
		buf_priv->age = 0;
	}
}

/* ================================================================
 * CP command submission
 */

int radeon_wait_ring(drm_radeon_private_t * dev_priv, int n)
{
	drm_radeon_ring_buffer_t *ring = &dev_priv->ring;
	int i;
	u32 last_head = GET_RING_HEAD(dev_priv);

	for (i = 0; i < dev_priv->usec_timeout; i++) {
		u32 head = GET_RING_HEAD(dev_priv);

		ring->space = (head - ring->tail) * sizeof(u32);
		if (ring->space <= 0)
			ring->space += ring->size;
		if (ring->space > n)
			return 0;

		dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;

		if (head != last_head)
			i = 0;
		last_head = head;

		DRM_UDELAY(1);
	}

	/* FIXME: This return value is ignored in the BEGIN_RING macro! */
#if RADEON_FIFO_DEBUG
	radeon_status(dev_priv);
	DRM_ERROR("failed!\n");
#endif
	return -EBUSY;
}

static int radeon_cp_get_buffers(struct drm_device *dev,
				 struct drm_file *file_priv,
				 struct drm_dma * d)
{
	int i;
	struct drm_buf *buf;

	for (i = d->granted_count; i < d->request_count; i++) {
		buf = radeon_freelist_get(dev);
		if (!buf)
			return -EBUSY;	/* NOTE: broken client */

		buf->file_priv = file_priv;

		if (DRM_COPY_TO_USER(&d->request_indices[i], &buf->idx,
				     sizeof(buf->idx)))
			return -EFAULT;
		if (DRM_COPY_TO_USER(&d->request_sizes[i], &buf->total,
				     sizeof(buf->total)))
			return -EFAULT;

		d->granted_count++;
	}
	return 0;
}

int radeon_cp_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	struct drm_device_dma *dma = dev->dma;
	int ret = 0;
	struct drm_dma *d = data;

	LOCK_TEST_WITH_RETURN(dev, file_priv);

	/* Please don't send us buffers.
	 */
	if (d->send_count != 0) {
		DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
			  DRM_CURRENTPID, d->send_count);
		return -EINVAL;
	}

	/* We'll send you buffers.
	 */
	if (d->request_count < 0 || d->request_count > dma->buf_count) {
		DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
			  DRM_CURRENTPID, d->request_count, dma->buf_count);
		return -EINVAL;
	}

	d->granted_count = 0;

	if (d->request_count) {
		ret = radeon_cp_get_buffers(dev, file_priv, d);
	}

	return ret;
}

int radeon_driver_load(struct drm_device *dev, unsigned long flags)
{
	drm_radeon_private_t *dev_priv;
	int ret = 0;

	dev_priv = drm_alloc(sizeof(drm_radeon_private_t), DRM_MEM_DRIVER);
	if (dev_priv == NULL)
		return -ENOMEM;

	memset(dev_priv, 0, sizeof(drm_radeon_private_t));
	dev->dev_private = (void *)dev_priv;
	dev_priv->flags = flags;

	switch (flags & RADEON_FAMILY_MASK) {
	case CHIP_R100:
	case CHIP_RV200:
	case CHIP_R200:
	case CHIP_R300:
	case CHIP_R350:
	case CHIP_R420:
	case CHIP_RV410:
		dev_priv->flags |= RADEON_HAS_HIERZ;
		break;
	default:
		/* all other chips have no hierarchical z buffer */
		break;
	}

	if (drm_device_is_agp(dev))
		dev_priv->flags |= RADEON_IS_AGP;
	else if (drm_device_is_pcie(dev))
		dev_priv->flags |= RADEON_IS_PCIE;
	else
		dev_priv->flags |= RADEON_IS_PCI;

	DRM_DEBUG("%s card detected\n",
		  ((dev_priv->flags & RADEON_IS_AGP) ? "AGP" : (((dev_priv->flags & RADEON_IS_PCIE) ? "PCIE" : "PCI"))));
	return ret;
}

/* Create mappings for registers and framebuffer so userland doesn't necessarily
 * have to find them.
 */
int radeon_driver_firstopen(struct drm_device *dev)
{
	int ret;
	drm_local_map_t *map;
	drm_radeon_private_t *dev_priv = dev->dev_private;

	dev_priv->gart_info.table_size = RADEON_PCIGART_TABLE_SIZE;

	ret = drm_addmap(dev, drm_get_resource_start(dev, 2),
			 drm_get_resource_len(dev, 2), _DRM_REGISTERS,
			 _DRM_READ_ONLY, &dev_priv->mmio);
	if (ret != 0)
		return ret;

	ret = drm_addmap(dev, drm_get_resource_start(dev, 0),
			 drm_get_resource_len(dev, 0), _DRM_FRAME_BUFFER,
			 _DRM_WRITE_COMBINING, &map);
	if (ret != 0)
		return ret;

	return 0;
}

int radeon_driver_unload(struct drm_device *dev)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;

	DRM_DEBUG("\n");
	drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);

	dev->dev_private = NULL;
	return 0;
}