drm/radeon/kms: clear confusion in GART init/deinit path
[deliverable/linux.git] / drivers / gpu / drm / radeon / r420.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 <linux/seq_file.h>
29#include "drmP.h"
30#include "radeon_reg.h"
31#include "radeon.h"
9f022ddf 32#include "atom.h"
905b6822 33#include "r420d.h"
771fe6b9 34
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35int r420_mc_init(struct radeon_device *rdev)
36{
37 int r;
38
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39 /* Setup GPU memory space */
40 rdev->mc.vram_location = 0xFFFFFFFFUL;
41 rdev->mc.gtt_location = 0xFFFFFFFFUL;
42 if (rdev->flags & RADEON_IS_AGP) {
43 r = radeon_agp_init(rdev);
44 if (r) {
45 printk(KERN_WARNING "[drm] Disabling AGP\n");
46 rdev->flags &= ~RADEON_IS_AGP;
47 rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
48 } else {
49 rdev->mc.gtt_location = rdev->mc.agp_base;
50 }
51 }
52 r = radeon_mc_setup(rdev);
53 if (r) {
54 return r;
55 }
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56 return 0;
57}
58
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59void r420_pipes_init(struct radeon_device *rdev)
60{
61 unsigned tmp;
62 unsigned gb_pipe_select;
63 unsigned num_pipes;
64
65 /* GA_ENHANCE workaround TCL deadlock issue */
66 WREG32(0x4274, (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3));
67 /* get max number of pipes */
68 gb_pipe_select = RREG32(0x402C);
69 num_pipes = ((gb_pipe_select >> 12) & 3) + 1;
70 rdev->num_gb_pipes = num_pipes;
71 tmp = 0;
72 switch (num_pipes) {
73 default:
74 /* force to 1 pipe */
75 num_pipes = 1;
76 case 1:
77 tmp = (0 << 1);
78 break;
79 case 2:
80 tmp = (3 << 1);
81 break;
82 case 3:
83 tmp = (6 << 1);
84 break;
85 case 4:
86 tmp = (7 << 1);
87 break;
88 }
89 WREG32(0x42C8, (1 << num_pipes) - 1);
90 /* Sub pixel 1/12 so we can have 4K rendering according to doc */
91 tmp |= (1 << 4) | (1 << 0);
92 WREG32(0x4018, tmp);
93 if (r100_gui_wait_for_idle(rdev)) {
94 printk(KERN_WARNING "Failed to wait GUI idle while "
95 "programming pipes. Bad things might happen.\n");
96 }
97
98 tmp = RREG32(0x170C);
99 WREG32(0x170C, tmp | (1 << 31));
100
101 WREG32(R300_RB2D_DSTCACHE_MODE,
102 RREG32(R300_RB2D_DSTCACHE_MODE) |
103 R300_DC_AUTOFLUSH_ENABLE |
104 R300_DC_DC_DISABLE_IGNORE_PE);
105
106 if (r100_gui_wait_for_idle(rdev)) {
107 printk(KERN_WARNING "Failed to wait GUI idle while "
108 "programming pipes. Bad things might happen.\n");
109 }
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110
111 if (rdev->family == CHIP_RV530) {
112 tmp = RREG32(RV530_GB_PIPE_SELECT2);
113 if ((tmp & 3) == 3)
114 rdev->num_z_pipes = 2;
115 else
116 rdev->num_z_pipes = 1;
117 } else
118 rdev->num_z_pipes = 1;
119
120 DRM_INFO("radeon: %d quad pipes, %d z pipes initialized.\n",
121 rdev->num_gb_pipes, rdev->num_z_pipes);
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122}
123
9f022ddf 124u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg)
771fe6b9 125{
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126 u32 r;
127
128 WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg));
129 r = RREG32(R_0001FC_MC_IND_DATA);
130 return r;
131}
132
133void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v)
134{
135 WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg) |
136 S_0001F8_MC_IND_WR_EN(1));
137 WREG32(R_0001FC_MC_IND_DATA, v);
138}
139
140static void r420_debugfs(struct radeon_device *rdev)
141{
142 if (r100_debugfs_rbbm_init(rdev)) {
143 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
144 }
145 if (r420_debugfs_pipes_info_init(rdev)) {
146 DRM_ERROR("Failed to register debugfs file for pipes !\n");
147 }
148}
149
150static void r420_clock_resume(struct radeon_device *rdev)
151{
152 u32 sclk_cntl;
153 sclk_cntl = RREG32_PLL(R_00000D_SCLK_CNTL);
154 sclk_cntl |= S_00000D_FORCE_CP(1) | S_00000D_FORCE_VIP(1);
155 if (rdev->family == CHIP_R420)
156 sclk_cntl |= S_00000D_FORCE_PX(1) | S_00000D_FORCE_TX(1);
157 WREG32_PLL(R_00000D_SCLK_CNTL, sclk_cntl);
158}
159
160int r420_resume(struct radeon_device *rdev)
161{
162 int r;
163
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164 /* Make sur GART are not working */
165 if (rdev->flags & RADEON_IS_PCIE)
166 rv370_pcie_gart_disable(rdev);
167 if (rdev->flags & RADEON_IS_PCI)
168 r100_pci_gart_disable(rdev);
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169 /* Resume clock before doing reset */
170 r420_clock_resume(rdev);
171 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
172 if (radeon_gpu_reset(rdev)) {
173 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
174 RREG32(R_000E40_RBBM_STATUS),
175 RREG32(R_0007C0_CP_STAT));
176 }
177 /* check if cards are posted or not */
178 if (rdev->is_atom_bios) {
179 atom_asic_init(rdev->mode_info.atom_context);
180 } else {
181 radeon_combios_asic_init(rdev->ddev);
182 }
183 /* Resume clock after posting */
184 r420_clock_resume(rdev);
185 r300_mc_program(rdev);
186 /* Initialize GART (initialize after TTM so we can allocate
187 * memory through TTM but finalize after TTM) */
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188 if (rdev->flags & RADEON_IS_PCIE) {
189 r = rv370_pcie_gart_enable(rdev);
190 if (r)
191 return r;
192 }
193 if (rdev->flags & RADEON_IS_PCI) {
194 r = r100_pci_gart_enable(rdev);
195 if (r)
196 return r;
9f022ddf 197 }
771fe6b9 198 r420_pipes_init(rdev);
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199 /* Enable IRQ */
200 rdev->irq.sw_int = true;
201 r100_irq_set(rdev);
202 /* 1M ring buffer */
203 r = r100_cp_init(rdev, 1024 * 1024);
204 if (r) {
205 dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
206 return r;
207 }
208 r = r100_wb_init(rdev);
209 if (r) {
210 dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
771fe6b9 211 }
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212 r = r100_ib_init(rdev);
213 if (r) {
214 dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
215 return r;
216 }
217 return 0;
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218}
219
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220int r420_suspend(struct radeon_device *rdev)
221{
222 r100_cp_disable(rdev);
223 r100_wb_disable(rdev);
224 r100_irq_disable(rdev);
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225 if (rdev->flags & RADEON_IS_PCIE)
226 rv370_pcie_gart_disable(rdev);
227 if (rdev->flags & RADEON_IS_PCI)
228 r100_pci_gart_disable(rdev);
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229 return 0;
230}
771fe6b9 231
9f022ddf 232void r420_fini(struct radeon_device *rdev)
771fe6b9 233{
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234 r100_cp_fini(rdev);
235 r100_wb_fini(rdev);
236 r100_ib_fini(rdev);
237 radeon_gem_fini(rdev);
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238 if (rdev->flags & RADEON_IS_PCIE)
239 rv370_pcie_gart_fini(rdev);
240 if (rdev->flags & RADEON_IS_PCI)
241 r100_pci_gart_fini(rdev);
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242 radeon_agp_fini(rdev);
243 radeon_irq_kms_fini(rdev);
244 radeon_fence_driver_fini(rdev);
245 radeon_object_fini(rdev);
246 if (rdev->is_atom_bios) {
247 radeon_atombios_fini(rdev);
248 } else {
249 radeon_combios_fini(rdev);
250 }
251 kfree(rdev->bios);
252 rdev->bios = NULL;
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253}
254
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255int r420_init(struct radeon_device *rdev)
256{
257 int r;
258
259 rdev->new_init_path = true;
260 /* Initialize scratch registers */
261 radeon_scratch_init(rdev);
262 /* Initialize surface registers */
263 radeon_surface_init(rdev);
264 /* TODO: disable VGA need to use VGA request */
265 /* BIOS*/
266 if (!radeon_get_bios(rdev)) {
267 if (ASIC_IS_AVIVO(rdev))
268 return -EINVAL;
269 }
270 if (rdev->is_atom_bios) {
271 r = radeon_atombios_init(rdev);
272 if (r) {
273 return r;
274 }
275 } else {
276 r = radeon_combios_init(rdev);
277 if (r) {
278 return r;
279 }
280 }
281 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
282 if (radeon_gpu_reset(rdev)) {
283 dev_warn(rdev->dev,
284 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
285 RREG32(R_000E40_RBBM_STATUS),
286 RREG32(R_0007C0_CP_STAT));
287 }
288 /* check if cards are posted or not */
289 if (!radeon_card_posted(rdev) && rdev->bios) {
290 DRM_INFO("GPU not posted. posting now...\n");
291 if (rdev->is_atom_bios) {
292 atom_asic_init(rdev->mode_info.atom_context);
293 } else {
294 radeon_combios_asic_init(rdev->ddev);
295 }
296 }
297 /* Initialize clocks */
298 radeon_get_clock_info(rdev->ddev);
299 /* Get vram informations */
300 r300_vram_info(rdev);
301 /* Initialize memory controller (also test AGP) */
302 r = r420_mc_init(rdev);
303 if (r) {
304 return r;
305 }
306 r420_debugfs(rdev);
307 /* Fence driver */
308 r = radeon_fence_driver_init(rdev);
309 if (r) {
310 return r;
311 }
312 r = radeon_irq_kms_init(rdev);
313 if (r) {
314 return r;
315 }
316 /* Memory manager */
317 r = radeon_object_init(rdev);
318 if (r) {
319 return r;
320 }
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321 if (rdev->flags & RADEON_IS_PCIE) {
322 r = rv370_pcie_gart_init(rdev);
323 if (r)
324 return r;
325 }
326 if (rdev->flags & RADEON_IS_PCI) {
327 r = r100_pci_gart_init(rdev);
328 if (r)
329 return r;
330 }
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331 r300_set_reg_safe(rdev);
332 r = r420_resume(rdev);
333 if (r) {
334 /* Somethings want wront with the accel init stop accel */
335 dev_err(rdev->dev, "Disabling GPU acceleration\n");
336 r420_suspend(rdev);
337 r100_cp_fini(rdev);
338 r100_wb_fini(rdev);
339 r100_ib_fini(rdev);
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340 if (rdev->flags & RADEON_IS_PCIE)
341 rv370_pcie_gart_fini(rdev);
342 if (rdev->flags & RADEON_IS_PCI)
343 r100_pci_gart_fini(rdev);
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344 radeon_agp_fini(rdev);
345 radeon_irq_kms_fini(rdev);
346 }
347 return 0;
348}
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349
350/*
351 * Debugfs info
352 */
353#if defined(CONFIG_DEBUG_FS)
354static int r420_debugfs_pipes_info(struct seq_file *m, void *data)
355{
356 struct drm_info_node *node = (struct drm_info_node *) m->private;
357 struct drm_device *dev = node->minor->dev;
358 struct radeon_device *rdev = dev->dev_private;
359 uint32_t tmp;
360
361 tmp = RREG32(R400_GB_PIPE_SELECT);
362 seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
363 tmp = RREG32(R300_GB_TILE_CONFIG);
364 seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
365 tmp = RREG32(R300_DST_PIPE_CONFIG);
366 seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
367 return 0;
368}
369
370static struct drm_info_list r420_pipes_info_list[] = {
371 {"r420_pipes_info", r420_debugfs_pipes_info, 0, NULL},
372};
373#endif
374
375int r420_debugfs_pipes_info_init(struct radeon_device *rdev)
376{
377#if defined(CONFIG_DEBUG_FS)
378 return radeon_debugfs_add_files(rdev, r420_pipes_info_list, 1);
379#else
380 return 0;
381#endif
382}
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