2 * Copyright 2013 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
25 #include <subdev/bios.h>
26 #include <subdev/bios/bit.h>
27 #include <subdev/bios/pll.h>
28 #include <subdev/bios/init.h>
29 #include <subdev/clock.h>
30 #include <subdev/clock/pll.h>
31 #include <subdev/timer.h>
33 #include <engine/fifo.h>
38 nv40_ram_calc(struct nouveau_fb *pfb, u32 freq)
40 struct nouveau_bios *bios = nouveau_bios(pfb);
41 struct nv40_ram *ram = (void *)pfb->ram;
42 struct nvbios_pll pll;
46 ret = nvbios_pll_parse(bios, 0x04, &pll);
48 nv_error(pfb, "mclk pll data not found\n");
52 ret = nv04_pll_calc(nv_subdev(pfb), &pll, freq,
53 &N1, &M1, &N2, &M2, &log2P);
57 ram->ctrl = 0x80000000 | (log2P << 16);
58 ram->ctrl |= min(pll.bias_p + log2P, (int)pll.max_p) << 20;
60 ram->ctrl |= 0x00000100;
61 ram->coef = (N1 << 8) | M1;
63 ram->ctrl |= 0x40000000;
64 ram->coef = (N2 << 24) | (M2 << 16) | (N1 << 8) | M1;
71 nv40_ram_prog(struct nouveau_fb *pfb)
73 struct nouveau_bios *bios = nouveau_bios(pfb);
74 struct nv40_ram *ram = (void *)pfb->ram;
80 /* determine which CRTCs are active, fetch VGA_SR1 for each */
81 for (i = 0; i < 2; i++) {
82 u32 vbl = nv_rd32(pfb, 0x600808 + (i * 0x2000));
85 if (vbl != nv_rd32(pfb, 0x600808 + (i * 0x2000))) {
86 nv_wr08(pfb, 0x0c03c4 + (i * 0x2000), 0x01);
87 sr1[i] = nv_rd08(pfb, 0x0c03c5 + (i * 0x2000));
89 crtc_mask |= (1 << i);
96 /* wait for vblank start on active crtcs, disable memory access */
97 for (i = 0; i < 2; i++) {
98 if (!(crtc_mask & (1 << i)))
100 nv_wait(pfb, 0x600808 + (i * 0x2000), 0x00010000, 0x00000000);
101 nv_wait(pfb, 0x600808 + (i * 0x2000), 0x00010000, 0x00010000);
102 nv_wr08(pfb, 0x0c03c4 + (i * 0x2000), 0x01);
103 nv_wr08(pfb, 0x0c03c5 + (i * 0x2000), sr1[i] | 0x20);
106 /* prepare ram for reclocking */
107 nv_wr32(pfb, 0x1002d4, 0x00000001); /* precharge */
108 nv_wr32(pfb, 0x1002d0, 0x00000001); /* refresh */
109 nv_wr32(pfb, 0x1002d0, 0x00000001); /* refresh */
110 nv_mask(pfb, 0x100210, 0x80000000, 0x00000000); /* no auto refresh */
111 nv_wr32(pfb, 0x1002dc, 0x00000001); /* enable self-refresh */
113 /* change the PLL of each memory partition */
114 nv_mask(pfb, 0x00c040, 0x0000c000, 0x00000000);
115 switch (nv_device(pfb)->chipset) {
121 nv_mask(pfb, 0x004044, 0xc0771100, ram->ctrl);
122 nv_mask(pfb, 0x00402c, 0xc0771100, ram->ctrl);
123 nv_wr32(pfb, 0x004048, ram->coef);
124 nv_wr32(pfb, 0x004030, ram->coef);
128 nv_mask(pfb, 0x004038, 0xc0771100, ram->ctrl);
129 nv_wr32(pfb, 0x00403c, ram->coef);
131 nv_mask(pfb, 0x004020, 0xc0771100, ram->ctrl);
132 nv_wr32(pfb, 0x004024, ram->coef);
136 nv_mask(pfb, 0x00c040, 0x0000c000, 0x0000c000);
138 /* re-enable normal operation of memory controller */
139 nv_wr32(pfb, 0x1002dc, 0x00000000);
140 nv_mask(pfb, 0x100210, 0x80000000, 0x80000000);
143 /* execute memory reset script from vbios */
144 if (!bit_entry(bios, 'M', &M)) {
145 struct nvbios_init init = {
146 .subdev = nv_subdev(pfb),
148 .offset = nv_ro16(bios, M.offset + 0x00),
155 /* make sure we're in vblank (hopefully the same one as before), and
156 * then re-enable crtc memory access
158 for (i = 0; i < 2; i++) {
159 if (!(crtc_mask & (1 << i)))
161 nv_wait(pfb, 0x600808 + (i * 0x2000), 0x00010000, 0x00010000);
162 nv_wr08(pfb, 0x0c03c4 + (i * 0x2000), 0x01);
163 nv_wr08(pfb, 0x0c03c5 + (i * 0x2000), sr1[i]);
170 nv40_ram_tidy(struct nouveau_fb *pfb)
175 nv40_ram_create(struct nouveau_object *parent, struct nouveau_object *engine,
176 struct nouveau_oclass *oclass, void *data, u32 size,
177 struct nouveau_object **pobject)
179 struct nouveau_fb *pfb = nouveau_fb(parent);
180 struct nv40_ram *ram;
181 u32 pbus1218 = nv_rd32(pfb, 0x001218);
184 ret = nouveau_ram_create(parent, engine, oclass, &ram);
185 *pobject = nv_object(ram);
189 switch (pbus1218 & 0x00000300) {
190 case 0x00000000: ram->base.type = NV_MEM_TYPE_SDRAM; break;
191 case 0x00000100: ram->base.type = NV_MEM_TYPE_DDR1; break;
192 case 0x00000200: ram->base.type = NV_MEM_TYPE_GDDR3; break;
193 case 0x00000300: ram->base.type = NV_MEM_TYPE_DDR2; break;
196 ram->base.size = nv_rd32(pfb, 0x10020c) & 0xff000000;
197 ram->base.parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
198 ram->base.tags = nv_rd32(pfb, 0x100320);
199 ram->base.calc = nv40_ram_calc;
200 ram->base.prog = nv40_ram_prog;
201 ram->base.tidy = nv40_ram_tidy;
206 struct nouveau_oclass
209 .ofuncs = &(struct nouveau_ofuncs) {
210 .ctor = nv40_ram_create,
211 .dtor = _nouveau_ram_dtor,
212 .init = _nouveau_ram_init,
213 .fini = _nouveau_ram_fini,