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[net-next-2.6.git] / drivers / gpu / drm / radeon / r520.c
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1/*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alex Deucher
26 * Jerome Glisse
27 */
28#include "drmP.h"
771fe6b9 29#include "radeon.h"
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30#include "atom.h"
31#include "r520d.h"
771fe6b9 32
f0ed1f65 33/* This files gather functions specifics to: r520,rv530,rv560,rv570,r580 */
771fe6b9 34
f0ed1f65 35static int r520_mc_wait_for_idle(struct radeon_device *rdev)
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36{
37 unsigned i;
38 uint32_t tmp;
39
40 for (i = 0; i < rdev->usec_timeout; i++) {
41 /* read MC_STATUS */
42 tmp = RREG32_MC(R520_MC_STATUS);
43 if (tmp & R520_MC_STATUS_IDLE) {
44 return 0;
45 }
46 DRM_UDELAY(1);
47 }
48 return -1;
49}
50
f0ed1f65 51static void r520_gpu_init(struct radeon_device *rdev)
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52{
53 unsigned pipe_select_current, gb_pipe_select, tmp;
54
55 r100_hdp_reset(rdev);
d39c3b89 56 rv515_vga_render_disable(rdev);
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57 /*
58 * DST_PIPE_CONFIG 0x170C
59 * GB_TILE_CONFIG 0x4018
60 * GB_FIFO_SIZE 0x4024
61 * GB_PIPE_SELECT 0x402C
62 * GB_PIPE_SELECT2 0x4124
63 * Z_PIPE_SHIFT 0
64 * Z_PIPE_MASK 0x000000003
65 * GB_FIFO_SIZE2 0x4128
66 * SC_SFIFO_SIZE_SHIFT 0
67 * SC_SFIFO_SIZE_MASK 0x000000003
68 * SC_MFIFO_SIZE_SHIFT 2
69 * SC_MFIFO_SIZE_MASK 0x00000000C
70 * FG_SFIFO_SIZE_SHIFT 4
71 * FG_SFIFO_SIZE_MASK 0x000000030
72 * ZB_MFIFO_SIZE_SHIFT 6
73 * ZB_MFIFO_SIZE_MASK 0x0000000C0
74 * GA_ENHANCE 0x4274
75 * SU_REG_DEST 0x42C8
76 */
77 /* workaround for RV530 */
78 if (rdev->family == CHIP_RV530) {
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79 WREG32(0x4128, 0xFF);
80 }
81 r420_pipes_init(rdev);
82 gb_pipe_select = RREG32(0x402C);
83 tmp = RREG32(0x170C);
84 pipe_select_current = (tmp >> 2) & 3;
85 tmp = (1 << pipe_select_current) |
86 (((gb_pipe_select >> 8) & 0xF) << 4);
87 WREG32_PLL(0x000D, tmp);
88 if (r520_mc_wait_for_idle(rdev)) {
89 printk(KERN_WARNING "Failed to wait MC idle while "
90 "programming pipes. Bad things might happen.\n");
91 }
92}
93
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94static void r520_vram_get_type(struct radeon_device *rdev)
95{
96 uint32_t tmp;
97
98 rdev->mc.vram_width = 128;
99 rdev->mc.vram_is_ddr = true;
100 tmp = RREG32_MC(R520_MC_CNTL0);
101 switch ((tmp & R520_MEM_NUM_CHANNELS_MASK) >> R520_MEM_NUM_CHANNELS_SHIFT) {
102 case 0:
103 rdev->mc.vram_width = 32;
104 break;
105 case 1:
106 rdev->mc.vram_width = 64;
107 break;
108 case 2:
109 rdev->mc.vram_width = 128;
110 break;
111 case 3:
112 rdev->mc.vram_width = 256;
113 break;
114 default:
115 rdev->mc.vram_width = 128;
116 break;
117 }
118 if (tmp & R520_MC_CHANNEL_SIZE)
119 rdev->mc.vram_width *= 2;
120}
121
122void r520_vram_info(struct radeon_device *rdev)
123{
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124 fixed20_12 a;
125
771fe6b9 126 r520_vram_get_type(rdev);
771fe6b9 127
2a0f8918 128 r100_vram_init_sizes(rdev);
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129 /* FIXME: we should enforce default clock in case GPU is not in
130 * default setup
131 */
132 a.full = rfixed_const(100);
133 rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
134 rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
135}
136
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137void r520_mc_program(struct radeon_device *rdev)
138{
139 struct rv515_mc_save save;
140
141 /* Stops all mc clients */
142 rv515_mc_stop(rdev, &save);
143
144 /* Wait for mc idle */
145 if (r520_mc_wait_for_idle(rdev))
146 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
147 /* Write VRAM size in case we are limiting it */
148 WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
149 /* Program MC, should be a 32bits limited address space */
150 WREG32_MC(R_000004_MC_FB_LOCATION,
151 S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
152 S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
153 WREG32(R_000134_HDP_FB_LOCATION,
154 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
155 if (rdev->flags & RADEON_IS_AGP) {
156 WREG32_MC(R_000005_MC_AGP_LOCATION,
157 S_000005_MC_AGP_START(rdev->mc.gtt_start >> 16) |
158 S_000005_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
159 WREG32_MC(R_000006_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
160 WREG32_MC(R_000007_AGP_BASE_2,
161 S_000007_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base)));
162 } else {
163 WREG32_MC(R_000005_MC_AGP_LOCATION, 0xFFFFFFFF);
164 WREG32_MC(R_000006_AGP_BASE, 0);
165 WREG32_MC(R_000007_AGP_BASE_2, 0);
166 }
167
168 rv515_mc_resume(rdev, &save);
169}
170
171static int r520_startup(struct radeon_device *rdev)
172{
173 int r;
174
175 r520_mc_program(rdev);
176 /* Resume clock */
177 rv515_clock_startup(rdev);
178 /* Initialize GPU configuration (# pipes, ...) */
179 r520_gpu_init(rdev);
180 /* Initialize GART (initialize after TTM so we can allocate
181 * memory through TTM but finalize after TTM) */
182 if (rdev->flags & RADEON_IS_PCIE) {
183 r = rv370_pcie_gart_enable(rdev);
184 if (r)
185 return r;
186 }
187 /* Enable IRQ */
ac447df4 188 rs600_irq_set(rdev);
cafe6609 189 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
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190 /* 1M ring buffer */
191 r = r100_cp_init(rdev, 1024 * 1024);
192 if (r) {
193 dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
194 return r;
195 }
196 r = r100_wb_init(rdev);
197 if (r)
198 dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
199 r = r100_ib_init(rdev);
200 if (r) {
201 dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
202 return r;
203 }
204 return 0;
205}
206
207int r520_resume(struct radeon_device *rdev)
c93bb85b 208{
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209 /* Make sur GART are not working */
210 if (rdev->flags & RADEON_IS_PCIE)
211 rv370_pcie_gart_disable(rdev);
212 /* Resume clock before doing reset */
213 rv515_clock_startup(rdev);
214 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
215 if (radeon_gpu_reset(rdev)) {
216 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
217 RREG32(R_000E40_RBBM_STATUS),
218 RREG32(R_0007C0_CP_STAT));
219 }
220 /* post */
221 atom_asic_init(rdev->mode_info.atom_context);
222 /* Resume clock after posting */
223 rv515_clock_startup(rdev);
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224 /* Initialize surface registers */
225 radeon_surface_init(rdev);
f0ed1f65 226 return r520_startup(rdev);
771fe6b9 227}
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228
229int r520_init(struct radeon_device *rdev)
230{
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231 int r;
232
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233 /* Initialize scratch registers */
234 radeon_scratch_init(rdev);
235 /* Initialize surface registers */
236 radeon_surface_init(rdev);
237 /* TODO: disable VGA need to use VGA request */
238 /* BIOS*/
239 if (!radeon_get_bios(rdev)) {
240 if (ASIC_IS_AVIVO(rdev))
241 return -EINVAL;
242 }
243 if (rdev->is_atom_bios) {
244 r = radeon_atombios_init(rdev);
245 if (r)
246 return r;
247 } else {
248 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
249 return -EINVAL;
250 }
251 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
252 if (radeon_gpu_reset(rdev)) {
253 dev_warn(rdev->dev,
254 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
255 RREG32(R_000E40_RBBM_STATUS),
256 RREG32(R_0007C0_CP_STAT));
257 }
258 /* check if cards are posted or not */
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259 if (radeon_boot_test_post_card(rdev) == false)
260 return -EINVAL;
261
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262 if (!radeon_card_posted(rdev) && rdev->bios) {
263 DRM_INFO("GPU not posted. posting now...\n");
264 atom_asic_init(rdev->mode_info.atom_context);
265 }
266 /* Initialize clocks */
267 radeon_get_clock_info(rdev->ddev);
7433874e
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268 /* Initialize power management */
269 radeon_pm_init(rdev);
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270 /* Get vram informations */
271 r520_vram_info(rdev);
272 /* Initialize memory controller (also test AGP) */
273 r = r420_mc_init(rdev);
274 if (r)
275 return r;
276 rv515_debugfs(rdev);
277 /* Fence driver */
278 r = radeon_fence_driver_init(rdev);
279 if (r)
280 return r;
281 r = radeon_irq_kms_init(rdev);
282 if (r)
283 return r;
284 /* Memory manager */
4c788679 285 r = radeon_bo_init(rdev);
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286 if (r)
287 return r;
288 r = rv370_pcie_gart_init(rdev);
289 if (r)
290 return r;
d39c3b89 291 rv515_set_safe_registers(rdev);
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292 rdev->accel_working = true;
293 r = r520_startup(rdev);
294 if (r) {
295 /* Somethings want wront with the accel init stop accel */
296 dev_err(rdev->dev, "Disabling GPU acceleration\n");
297 rv515_suspend(rdev);
298 r100_cp_fini(rdev);
299 r100_wb_fini(rdev);
300 r100_ib_fini(rdev);
301 rv370_pcie_gart_fini(rdev);
302 radeon_agp_fini(rdev);
303 radeon_irq_kms_fini(rdev);
304 rdev->accel_working = false;
305 }
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306 return 0;
307}