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 <drm/drmP.h>
29#include "radeon.h"
30#include "radeon_asic.h"
31#include "atom.h"
32#include "r520d.h"
33
34/* This files gather functions specifics to: r520,rv530,rv560,rv570,r580 */
35
36int r520_mc_wait_for_idle(struct radeon_device *rdev)
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
52static void r520_gpu_init(struct radeon_device *rdev)
53{
54 unsigned pipe_select_current, gb_pipe_select, tmp;
55
56 rv515_vga_render_disable(rdev);
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) {
79 WREG32(0x4128, 0xFF);
80 }
81 r420_pipes_init(rdev);
82 gb_pipe_select = RREG32(R400_GB_PIPE_SELECT);
83 tmp = RREG32(R300_DST_PIPE_CONFIG);
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 pr_warn("Failed to wait MC idle while programming pipes. Bad things might happen.\n");
90 }
91}
92
93static void r520_vram_get_type(struct radeon_device *rdev)
94{
95 uint32_t tmp;
96
97 rdev->mc.vram_width = 128;
98 rdev->mc.vram_is_ddr = true;
99 tmp = RREG32_MC(R520_MC_CNTL0);
100 switch ((tmp & R520_MEM_NUM_CHANNELS_MASK) >> R520_MEM_NUM_CHANNELS_SHIFT) {
101 case 0:
102 rdev->mc.vram_width = 32;
103 break;
104 case 1:
105 rdev->mc.vram_width = 64;
106 break;
107 case 2:
108 rdev->mc.vram_width = 128;
109 break;
110 case 3:
111 rdev->mc.vram_width = 256;
112 break;
113 default:
114 rdev->mc.vram_width = 128;
115 break;
116 }
117 if (tmp & R520_MC_CHANNEL_SIZE)
118 rdev->mc.vram_width *= 2;
119}
120
121static void r520_mc_init(struct radeon_device *rdev)
122{
123
124 r520_vram_get_type(rdev);
125 r100_vram_init_sizes(rdev);
126 radeon_vram_location(rdev, &rdev->mc, 0);
127 rdev->mc.gtt_base_align = 0;
128 if (!(rdev->flags & RADEON_IS_AGP))
129 radeon_gtt_location(rdev, &rdev->mc);
130 radeon_update_bandwidth_info(rdev);
131}
132
133static void r520_mc_program(struct radeon_device *rdev)
134{
135 struct rv515_mc_save save;
136
137 /* Stops all mc clients */
138 rv515_mc_stop(rdev, &save);
139
140 /* Wait for mc idle */
141 if (r520_mc_wait_for_idle(rdev))
142 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
143 /* Write VRAM size in case we are limiting it */
144 WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
145 /* Program MC, should be a 32bits limited address space */
146 WREG32_MC(R_000004_MC_FB_LOCATION,
147 S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
148 S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
149 WREG32(R_000134_HDP_FB_LOCATION,
150 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
151 if (rdev->flags & RADEON_IS_AGP) {
152 WREG32_MC(R_000005_MC_AGP_LOCATION,
153 S_000005_MC_AGP_START(rdev->mc.gtt_start >> 16) |
154 S_000005_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
155 WREG32_MC(R_000006_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
156 WREG32_MC(R_000007_AGP_BASE_2,
157 S_000007_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base)));
158 } else {
159 WREG32_MC(R_000005_MC_AGP_LOCATION, 0xFFFFFFFF);
160 WREG32_MC(R_000006_AGP_BASE, 0);
161 WREG32_MC(R_000007_AGP_BASE_2, 0);
162 }
163
164 rv515_mc_resume(rdev, &save);
165}
166
167static int r520_startup(struct radeon_device *rdev)
168{
169 int r;
170
171 r520_mc_program(rdev);
172 /* Resume clock */
173 rv515_clock_startup(rdev);
174 /* Initialize GPU configuration (# pipes, ...) */
175 r520_gpu_init(rdev);
176 /* Initialize GART (initialize after TTM so we can allocate
177 * memory through TTM but finalize after TTM) */
178 if (rdev->flags & RADEON_IS_PCIE) {
179 r = rv370_pcie_gart_enable(rdev);
180 if (r)
181 return r;
182 }
183
184 /* allocate wb buffer */
185 r = radeon_wb_init(rdev);
186 if (r)
187 return r;
188
189 r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
190 if (r) {
191 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
192 return r;
193 }
194
195 /* Enable IRQ */
196 if (!rdev->irq.installed) {
197 r = radeon_irq_kms_init(rdev);
198 if (r)
199 return r;
200 }
201
202 rs600_irq_set(rdev);
203 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
204 /* 1M ring buffer */
205 r = r100_cp_init(rdev, 1024 * 1024);
206 if (r) {
207 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
208 return r;
209 }
210
211 r = radeon_ib_pool_init(rdev);
212 if (r) {
213 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
214 return r;
215 }
216
217 return 0;
218}
219
220int r520_resume(struct radeon_device *rdev)
221{
222 int r;
223
224 /* Make sur GART are not working */
225 if (rdev->flags & RADEON_IS_PCIE)
226 rv370_pcie_gart_disable(rdev);
227 /* Resume clock before doing reset */
228 rv515_clock_startup(rdev);
229 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
230 if (radeon_asic_reset(rdev)) {
231 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
232 RREG32(R_000E40_RBBM_STATUS),
233 RREG32(R_0007C0_CP_STAT));
234 }
235 /* post */
236 atom_asic_init(rdev->mode_info.atom_context);
237 /* Resume clock after posting */
238 rv515_clock_startup(rdev);
239 /* Initialize surface registers */
240 radeon_surface_init(rdev);
241
242 rdev->accel_working = true;
243 r = r520_startup(rdev);
244 if (r) {
245 rdev->accel_working = false;
246 }
247 return r;
248}
249
250int r520_init(struct radeon_device *rdev)
251{
252 int r;
253
254 /* Initialize scratch registers */
255 radeon_scratch_init(rdev);
256 /* Initialize surface registers */
257 radeon_surface_init(rdev);
258 /* restore some register to sane defaults */
259 r100_restore_sanity(rdev);
260 /* TODO: disable VGA need to use VGA request */
261 /* BIOS*/
262 if (!radeon_get_bios(rdev)) {
263 if (ASIC_IS_AVIVO(rdev))
264 return -EINVAL;
265 }
266 if (rdev->is_atom_bios) {
267 r = radeon_atombios_init(rdev);
268 if (r)
269 return r;
270 } else {
271 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
272 return -EINVAL;
273 }
274 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
275 if (radeon_asic_reset(rdev)) {
276 dev_warn(rdev->dev,
277 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
278 RREG32(R_000E40_RBBM_STATUS),
279 RREG32(R_0007C0_CP_STAT));
280 }
281 /* check if cards are posted or not */
282 if (radeon_boot_test_post_card(rdev) == false)
283 return -EINVAL;
284
285 if (!radeon_card_posted(rdev) && rdev->bios) {
286 DRM_INFO("GPU not posted. posting now...\n");
287 atom_asic_init(rdev->mode_info.atom_context);
288 }
289 /* Initialize clocks */
290 radeon_get_clock_info(rdev->ddev);
291 /* initialize AGP */
292 if (rdev->flags & RADEON_IS_AGP) {
293 r = radeon_agp_init(rdev);
294 if (r) {
295 radeon_agp_disable(rdev);
296 }
297 }
298 /* initialize memory controller */
299 r520_mc_init(rdev);
300 rv515_debugfs(rdev);
301 /* Fence driver */
302 r = radeon_fence_driver_init(rdev);
303 if (r)
304 return r;
305 /* Memory manager */
306 r = radeon_bo_init(rdev);
307 if (r)
308 return r;
309 r = rv370_pcie_gart_init(rdev);
310 if (r)
311 return r;
312 rv515_set_safe_registers(rdev);
313
314 /* Initialize power management */
315 radeon_pm_init(rdev);
316
317 rdev->accel_working = true;
318 r = r520_startup(rdev);
319 if (r) {
320 /* Somethings want wront with the accel init stop accel */
321 dev_err(rdev->dev, "Disabling GPU acceleration\n");
322 r100_cp_fini(rdev);
323 radeon_wb_fini(rdev);
324 radeon_ib_pool_fini(rdev);
325 radeon_irq_kms_fini(rdev);
326 rv370_pcie_gart_fini(rdev);
327 radeon_agp_fini(rdev);
328 rdev->accel_working = false;
329 }
330 return 0;
331}
332