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[mirror_ubuntu-artful-kernel.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"
e6990375 30#include "radeon_asic.h"
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31#include "atom.h"
32#include "r520d.h"
771fe6b9 33
f0ed1f65 34/* This files gather functions specifics to: r520,rv530,rv560,rv570,r580 */
771fe6b9 35
f0ed1f65 36static int r520_mc_wait_for_idle(struct radeon_device *rdev)
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37{
38 unsigned i;
39 uint32_t tmp;
40
41 for (i = 0; i < rdev->usec_timeout; i++) {
42 /* read MC_STATUS */
43 tmp = RREG32_MC(R520_MC_STATUS);
44 if (tmp & R520_MC_STATUS_IDLE) {
45 return 0;
46 }
47 DRM_UDELAY(1);
48 }
49 return -1;
50}
51
f0ed1f65 52static void r520_gpu_init(struct radeon_device *rdev)
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53{
54 unsigned pipe_select_current, gb_pipe_select, tmp;
55
56 r100_hdp_reset(rdev);
d39c3b89 57 rv515_vga_render_disable(rdev);
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58 /*
59 * DST_PIPE_CONFIG 0x170C
60 * GB_TILE_CONFIG 0x4018
61 * GB_FIFO_SIZE 0x4024
62 * GB_PIPE_SELECT 0x402C
63 * GB_PIPE_SELECT2 0x4124
64 * Z_PIPE_SHIFT 0
65 * Z_PIPE_MASK 0x000000003
66 * GB_FIFO_SIZE2 0x4128
67 * SC_SFIFO_SIZE_SHIFT 0
68 * SC_SFIFO_SIZE_MASK 0x000000003
69 * SC_MFIFO_SIZE_SHIFT 2
70 * SC_MFIFO_SIZE_MASK 0x00000000C
71 * FG_SFIFO_SIZE_SHIFT 4
72 * FG_SFIFO_SIZE_MASK 0x000000030
73 * ZB_MFIFO_SIZE_SHIFT 6
74 * ZB_MFIFO_SIZE_MASK 0x0000000C0
75 * GA_ENHANCE 0x4274
76 * SU_REG_DEST 0x42C8
77 */
78 /* workaround for RV530 */
79 if (rdev->family == CHIP_RV530) {
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80 WREG32(0x4128, 0xFF);
81 }
82 r420_pipes_init(rdev);
83 gb_pipe_select = RREG32(0x402C);
84 tmp = RREG32(0x170C);
85 pipe_select_current = (tmp >> 2) & 3;
86 tmp = (1 << pipe_select_current) |
87 (((gb_pipe_select >> 8) & 0xF) << 4);
88 WREG32_PLL(0x000D, tmp);
89 if (r520_mc_wait_for_idle(rdev)) {
90 printk(KERN_WARNING "Failed to wait MC idle while "
91 "programming pipes. Bad things might happen.\n");
92 }
93}
94
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95static void r520_vram_get_type(struct radeon_device *rdev)
96{
97 uint32_t tmp;
98
99 rdev->mc.vram_width = 128;
100 rdev->mc.vram_is_ddr = true;
101 tmp = RREG32_MC(R520_MC_CNTL0);
102 switch ((tmp & R520_MEM_NUM_CHANNELS_MASK) >> R520_MEM_NUM_CHANNELS_SHIFT) {
103 case 0:
104 rdev->mc.vram_width = 32;
105 break;
106 case 1:
107 rdev->mc.vram_width = 64;
108 break;
109 case 2:
110 rdev->mc.vram_width = 128;
111 break;
112 case 3:
113 rdev->mc.vram_width = 256;
114 break;
115 default:
116 rdev->mc.vram_width = 128;
117 break;
118 }
119 if (tmp & R520_MC_CHANNEL_SIZE)
120 rdev->mc.vram_width *= 2;
121}
122
d594e46a 123void r520_mc_init(struct radeon_device *rdev)
771fe6b9 124{
c93bb85b 125
771fe6b9 126 r520_vram_get_type(rdev);
2a0f8918 127 r100_vram_init_sizes(rdev);
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128 radeon_vram_location(rdev, &rdev->mc, 0);
129 if (!(rdev->flags & RADEON_IS_AGP))
130 radeon_gtt_location(rdev, &rdev->mc);
f47299c5 131 radeon_update_bandwidth_info(rdev);
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132}
133
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134void r520_mc_program(struct radeon_device *rdev)
135{
136 struct rv515_mc_save save;
137
138 /* Stops all mc clients */
139 rv515_mc_stop(rdev, &save);
140
141 /* Wait for mc idle */
142 if (r520_mc_wait_for_idle(rdev))
143 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
144 /* Write VRAM size in case we are limiting it */
145 WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
146 /* Program MC, should be a 32bits limited address space */
147 WREG32_MC(R_000004_MC_FB_LOCATION,
148 S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
149 S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
150 WREG32(R_000134_HDP_FB_LOCATION,
151 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
152 if (rdev->flags & RADEON_IS_AGP) {
153 WREG32_MC(R_000005_MC_AGP_LOCATION,
154 S_000005_MC_AGP_START(rdev->mc.gtt_start >> 16) |
155 S_000005_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
156 WREG32_MC(R_000006_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
157 WREG32_MC(R_000007_AGP_BASE_2,
158 S_000007_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base)));
159 } else {
160 WREG32_MC(R_000005_MC_AGP_LOCATION, 0xFFFFFFFF);
161 WREG32_MC(R_000006_AGP_BASE, 0);
162 WREG32_MC(R_000007_AGP_BASE_2, 0);
163 }
164
165 rv515_mc_resume(rdev, &save);
166}
167
168static int r520_startup(struct radeon_device *rdev)
169{
170 int r;
171
172 r520_mc_program(rdev);
173 /* Resume clock */
174 rv515_clock_startup(rdev);
175 /* Initialize GPU configuration (# pipes, ...) */
176 r520_gpu_init(rdev);
177 /* Initialize GART (initialize after TTM so we can allocate
178 * memory through TTM but finalize after TTM) */
179 if (rdev->flags & RADEON_IS_PCIE) {
180 r = rv370_pcie_gart_enable(rdev);
181 if (r)
182 return r;
183 }
184 /* Enable IRQ */
ac447df4 185 rs600_irq_set(rdev);
cafe6609 186 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
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187 /* 1M ring buffer */
188 r = r100_cp_init(rdev, 1024 * 1024);
189 if (r) {
190 dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
191 return r;
192 }
193 r = r100_wb_init(rdev);
194 if (r)
195 dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
196 r = r100_ib_init(rdev);
197 if (r) {
198 dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
199 return r;
200 }
201 return 0;
202}
203
204int r520_resume(struct radeon_device *rdev)
c93bb85b 205{
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206 /* Make sur GART are not working */
207 if (rdev->flags & RADEON_IS_PCIE)
208 rv370_pcie_gart_disable(rdev);
209 /* Resume clock before doing reset */
210 rv515_clock_startup(rdev);
211 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
212 if (radeon_gpu_reset(rdev)) {
213 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
214 RREG32(R_000E40_RBBM_STATUS),
215 RREG32(R_0007C0_CP_STAT));
216 }
217 /* post */
218 atom_asic_init(rdev->mode_info.atom_context);
219 /* Resume clock after posting */
220 rv515_clock_startup(rdev);
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221 /* Initialize surface registers */
222 radeon_surface_init(rdev);
f0ed1f65 223 return r520_startup(rdev);
771fe6b9 224}
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225
226int r520_init(struct radeon_device *rdev)
227{
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228 int r;
229
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230 /* Initialize scratch registers */
231 radeon_scratch_init(rdev);
232 /* Initialize surface registers */
233 radeon_surface_init(rdev);
234 /* TODO: disable VGA need to use VGA request */
235 /* BIOS*/
236 if (!radeon_get_bios(rdev)) {
237 if (ASIC_IS_AVIVO(rdev))
238 return -EINVAL;
239 }
240 if (rdev->is_atom_bios) {
241 r = radeon_atombios_init(rdev);
242 if (r)
243 return r;
244 } else {
245 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
246 return -EINVAL;
247 }
248 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
249 if (radeon_gpu_reset(rdev)) {
250 dev_warn(rdev->dev,
251 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
252 RREG32(R_000E40_RBBM_STATUS),
253 RREG32(R_0007C0_CP_STAT));
254 }
255 /* check if cards are posted or not */
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256 if (radeon_boot_test_post_card(rdev) == false)
257 return -EINVAL;
258
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259 if (!radeon_card_posted(rdev) && rdev->bios) {
260 DRM_INFO("GPU not posted. posting now...\n");
261 atom_asic_init(rdev->mode_info.atom_context);
262 }
263 /* Initialize clocks */
264 radeon_get_clock_info(rdev->ddev);
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265 /* Initialize power management */
266 radeon_pm_init(rdev);
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267 /* initialize AGP */
268 if (rdev->flags & RADEON_IS_AGP) {
269 r = radeon_agp_init(rdev);
270 if (r) {
271 radeon_agp_disable(rdev);
272 }
273 }
274 /* initialize memory controller */
275 r520_mc_init(rdev);
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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");
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297 r100_cp_fini(rdev);
298 r100_wb_fini(rdev);
299 r100_ib_fini(rdev);
655efd3d 300 radeon_irq_kms_fini(rdev);
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301 rv370_pcie_gart_fini(rdev);
302 radeon_agp_fini(rdev);
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303 rdev->accel_working = false;
304 }
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305 return 0;
306}