aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/radeon/rv730_dpm.c
diff options
context:
space:
mode:
authorAlex Deucher <alexander.deucher@amd.com>2013-06-26 00:11:19 -0400
committerAlex Deucher <alexander.deucher@amd.com>2013-06-27 19:14:59 -0400
commit66229b200598a3b66b839d1759ff3f5b17ac5639 (patch)
tree5bfb3d7ba630171afe67c9aeae007a1db03d22d3 /drivers/gpu/drm/radeon/rv730_dpm.c
parent4a6369e9935e392402d4ccb67f5cddac953e8d3c (diff)
drm/radeon/kms: add dpm support for rv7xx (v4)
This adds dpm support for rv7xx asics. This includes: - clockgating - dynamic engine clock scaling - dynamic memory clock scaling - dynamic voltage scaling - dynamic pcie gen1/gen2 switching Set radeon.dpm=1 to enable. v2: reduce stack usage v3: fix 64 bit div v4: fix state enable Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rv730_dpm.c')
-rw-r--r--drivers/gpu/drm/radeon/rv730_dpm.c508
1 files changed, 508 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rv730_dpm.c b/drivers/gpu/drm/radeon/rv730_dpm.c
new file mode 100644
index 000000000000..3f5e1cf138ba
--- /dev/null
+++ b/drivers/gpu/drm/radeon/rv730_dpm.c
@@ -0,0 +1,508 @@
1/*
2 * Copyright 2011 Advanced Micro Devices, Inc.
3 *
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:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
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.
21 *
22 * Authors: Alex Deucher
23 */
24
25#include "drmP.h"
26#include "radeon.h"
27#include "rv730d.h"
28#include "r600_dpm.h"
29#include "rv770_dpm.h"
30#include "atom.h"
31
32#define MC_CG_ARB_FREQ_F0 0x0a
33#define MC_CG_ARB_FREQ_F1 0x0b
34#define MC_CG_ARB_FREQ_F2 0x0c
35#define MC_CG_ARB_FREQ_F3 0x0d
36
37struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps);
38struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
39
40int rv730_populate_sclk_value(struct radeon_device *rdev,
41 u32 engine_clock,
42 RV770_SMC_SCLK_VALUE *sclk)
43{
44 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
45 struct atom_clock_dividers dividers;
46 u32 spll_func_cntl = pi->clk_regs.rv730.cg_spll_func_cntl;
47 u32 spll_func_cntl_2 = pi->clk_regs.rv730.cg_spll_func_cntl_2;
48 u32 spll_func_cntl_3 = pi->clk_regs.rv730.cg_spll_func_cntl_3;
49 u32 cg_spll_spread_spectrum = pi->clk_regs.rv730.cg_spll_spread_spectrum;
50 u32 cg_spll_spread_spectrum_2 = pi->clk_regs.rv730.cg_spll_spread_spectrum_2;
51 u64 tmp;
52 u32 reference_clock = rdev->clock.spll.reference_freq;
53 u32 reference_divider, post_divider;
54 u32 fbdiv;
55 int ret;
56
57 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
58 engine_clock, false, &dividers);
59 if (ret)
60 return ret;
61
62 reference_divider = 1 + dividers.ref_div;
63
64 if (dividers.enable_post_div)
65 post_divider = ((dividers.post_div >> 4) & 0xf) +
66 (dividers.post_div & 0xf) + 2;
67 else
68 post_divider = 1;
69
70 tmp = (u64) engine_clock * reference_divider * post_divider * 16384;
71 do_div(tmp, reference_clock);
72 fbdiv = (u32) tmp;
73
74 /* set up registers */
75 if (dividers.enable_post_div)
76 spll_func_cntl |= SPLL_DIVEN;
77 else
78 spll_func_cntl &= ~SPLL_DIVEN;
79 spll_func_cntl &= ~(SPLL_HILEN_MASK | SPLL_LOLEN_MASK | SPLL_REF_DIV_MASK);
80 spll_func_cntl |= SPLL_REF_DIV(dividers.ref_div);
81 spll_func_cntl |= SPLL_HILEN((dividers.post_div >> 4) & 0xf);
82 spll_func_cntl |= SPLL_LOLEN(dividers.post_div & 0xf);
83
84 spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
85 spll_func_cntl_2 |= SCLK_MUX_SEL(2);
86
87 spll_func_cntl_3 &= ~SPLL_FB_DIV_MASK;
88 spll_func_cntl_3 |= SPLL_FB_DIV(fbdiv);
89 spll_func_cntl_3 |= SPLL_DITHEN;
90
91 if (pi->sclk_ss) {
92 struct radeon_atom_ss ss;
93 u32 vco_freq = engine_clock * post_divider;
94
95 if (radeon_atombios_get_asic_ss_info(rdev, &ss,
96 ASIC_INTERNAL_ENGINE_SS, vco_freq)) {
97 u32 clk_s = reference_clock * 5 / (reference_divider * ss.rate);
98 u32 clk_v = ss.percentage * fbdiv / (clk_s * 10000);
99
100 cg_spll_spread_spectrum &= ~CLK_S_MASK;
101 cg_spll_spread_spectrum |= CLK_S(clk_s);
102 cg_spll_spread_spectrum |= SSEN;
103
104 cg_spll_spread_spectrum_2 &= ~CLK_V_MASK;
105 cg_spll_spread_spectrum_2 |= CLK_V(clk_v);
106 }
107 }
108
109 sclk->sclk_value = cpu_to_be32(engine_clock);
110 sclk->vCG_SPLL_FUNC_CNTL = cpu_to_be32(spll_func_cntl);
111 sclk->vCG_SPLL_FUNC_CNTL_2 = cpu_to_be32(spll_func_cntl_2);
112 sclk->vCG_SPLL_FUNC_CNTL_3 = cpu_to_be32(spll_func_cntl_3);
113 sclk->vCG_SPLL_SPREAD_SPECTRUM = cpu_to_be32(cg_spll_spread_spectrum);
114 sclk->vCG_SPLL_SPREAD_SPECTRUM_2 = cpu_to_be32(cg_spll_spread_spectrum_2);
115
116 return 0;
117}
118
119int rv730_populate_mclk_value(struct radeon_device *rdev,
120 u32 engine_clock, u32 memory_clock,
121 LPRV7XX_SMC_MCLK_VALUE mclk)
122{
123 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
124 u32 mclk_pwrmgt_cntl = pi->clk_regs.rv730.mclk_pwrmgt_cntl;
125 u32 dll_cntl = pi->clk_regs.rv730.dll_cntl;
126 u32 mpll_func_cntl = pi->clk_regs.rv730.mpll_func_cntl;
127 u32 mpll_func_cntl_2 = pi->clk_regs.rv730.mpll_func_cntl2;
128 u32 mpll_func_cntl_3 = pi->clk_regs.rv730.mpll_func_cntl3;
129 u32 mpll_ss = pi->clk_regs.rv730.mpll_ss;
130 u32 mpll_ss2 = pi->clk_regs.rv730.mpll_ss2;
131 struct atom_clock_dividers dividers;
132 u32 post_divider, reference_divider;
133 int ret;
134
135 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_MEMORY_PLL_PARAM,
136 memory_clock, false, &dividers);
137 if (ret)
138 return ret;
139
140 reference_divider = dividers.ref_div + 1;
141
142 if (dividers.enable_post_div)
143 post_divider = ((dividers.post_div >> 4) & 0xf) +
144 (dividers.post_div & 0xf) + 2;
145 else
146 post_divider = 1;
147
148 /* setup the registers */
149 if (dividers.enable_post_div)
150 mpll_func_cntl |= MPLL_DIVEN;
151 else
152 mpll_func_cntl &= ~MPLL_DIVEN;
153
154 mpll_func_cntl &= ~(MPLL_REF_DIV_MASK | MPLL_HILEN_MASK | MPLL_LOLEN_MASK);
155 mpll_func_cntl |= MPLL_REF_DIV(dividers.ref_div);
156 mpll_func_cntl |= MPLL_HILEN((dividers.post_div >> 4) & 0xf);
157 mpll_func_cntl |= MPLL_LOLEN(dividers.post_div & 0xf);
158
159 mpll_func_cntl_3 &= ~MPLL_FB_DIV_MASK;
160 mpll_func_cntl_3 |= MPLL_FB_DIV(dividers.fb_div);
161 if (dividers.enable_dithen)
162 mpll_func_cntl_3 |= MPLL_DITHEN;
163 else
164 mpll_func_cntl_3 &= ~MPLL_DITHEN;
165
166 if (pi->mclk_ss) {
167 struct radeon_atom_ss ss;
168 u32 vco_freq = memory_clock * post_divider;
169
170 if (radeon_atombios_get_asic_ss_info(rdev, &ss,
171 ASIC_INTERNAL_MEMORY_SS, vco_freq)) {
172 u32 reference_clock = rdev->clock.mpll.reference_freq;
173 u32 clk_s = reference_clock * 5 / (reference_divider * ss.rate);
174 u32 clk_v = ss.percentage * dividers.fb_div / (clk_s * 10000);
175
176 mpll_ss &= ~CLK_S_MASK;
177 mpll_ss |= CLK_S(clk_s);
178 mpll_ss |= SSEN;
179
180 mpll_ss2 &= ~CLK_V_MASK;
181 mpll_ss |= CLK_V(clk_v);
182 }
183 }
184
185
186 mclk->mclk730.vMCLK_PWRMGT_CNTL = cpu_to_be32(mclk_pwrmgt_cntl);
187 mclk->mclk730.vDLL_CNTL = cpu_to_be32(dll_cntl);
188 mclk->mclk730.mclk_value = cpu_to_be32(memory_clock);
189 mclk->mclk730.vMPLL_FUNC_CNTL = cpu_to_be32(mpll_func_cntl);
190 mclk->mclk730.vMPLL_FUNC_CNTL2 = cpu_to_be32(mpll_func_cntl_2);
191 mclk->mclk730.vMPLL_FUNC_CNTL3 = cpu_to_be32(mpll_func_cntl_3);
192 mclk->mclk730.vMPLL_SS = cpu_to_be32(mpll_ss);
193 mclk->mclk730.vMPLL_SS2 = cpu_to_be32(mpll_ss2);
194
195 return 0;
196}
197
198void rv730_read_clock_registers(struct radeon_device *rdev)
199{
200 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
201
202 pi->clk_regs.rv730.cg_spll_func_cntl =
203 RREG32(CG_SPLL_FUNC_CNTL);
204 pi->clk_regs.rv730.cg_spll_func_cntl_2 =
205 RREG32(CG_SPLL_FUNC_CNTL_2);
206 pi->clk_regs.rv730.cg_spll_func_cntl_3 =
207 RREG32(CG_SPLL_FUNC_CNTL_3);
208 pi->clk_regs.rv730.cg_spll_spread_spectrum =
209 RREG32(CG_SPLL_SPREAD_SPECTRUM);
210 pi->clk_regs.rv730.cg_spll_spread_spectrum_2 =
211 RREG32(CG_SPLL_SPREAD_SPECTRUM_2);
212
213 pi->clk_regs.rv730.mclk_pwrmgt_cntl =
214 RREG32(TCI_MCLK_PWRMGT_CNTL);
215 pi->clk_regs.rv730.dll_cntl =
216 RREG32(TCI_DLL_CNTL);
217 pi->clk_regs.rv730.mpll_func_cntl =
218 RREG32(CG_MPLL_FUNC_CNTL);
219 pi->clk_regs.rv730.mpll_func_cntl2 =
220 RREG32(CG_MPLL_FUNC_CNTL_2);
221 pi->clk_regs.rv730.mpll_func_cntl3 =
222 RREG32(CG_MPLL_FUNC_CNTL_3);
223 pi->clk_regs.rv730.mpll_ss =
224 RREG32(CG_TCI_MPLL_SPREAD_SPECTRUM);
225 pi->clk_regs.rv730.mpll_ss2 =
226 RREG32(CG_TCI_MPLL_SPREAD_SPECTRUM_2);
227}
228
229int rv730_populate_smc_acpi_state(struct radeon_device *rdev,
230 RV770_SMC_STATETABLE *table)
231{
232 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
233 u32 mpll_func_cntl = 0;
234 u32 mpll_func_cntl_2 = 0 ;
235 u32 mpll_func_cntl_3 = 0;
236 u32 mclk_pwrmgt_cntl;
237 u32 dll_cntl;
238 u32 spll_func_cntl;
239 u32 spll_func_cntl_2;
240 u32 spll_func_cntl_3;
241
242 table->ACPIState = table->initialState;
243 table->ACPIState.flags &= ~PPSMC_SWSTATE_FLAG_DC;
244
245 if (pi->acpi_vddc) {
246 rv770_populate_vddc_value(rdev, pi->acpi_vddc,
247 &table->ACPIState.levels[0].vddc);
248 table->ACPIState.levels[0].gen2PCIE = pi->pcie_gen2 ?
249 pi->acpi_pcie_gen2 : 0;
250 table->ACPIState.levels[0].gen2XSP =
251 pi->acpi_pcie_gen2;
252 } else {
253 rv770_populate_vddc_value(rdev, pi->min_vddc_in_table,
254 &table->ACPIState.levels[0].vddc);
255 table->ACPIState.levels[0].gen2PCIE = 0;
256 }
257
258 mpll_func_cntl = pi->clk_regs.rv730.mpll_func_cntl;
259 mpll_func_cntl_2 = pi->clk_regs.rv730.mpll_func_cntl2;
260 mpll_func_cntl_3 = pi->clk_regs.rv730.mpll_func_cntl3;
261
262 mpll_func_cntl |= MPLL_RESET | MPLL_BYPASS_EN;
263 mpll_func_cntl &= ~MPLL_SLEEP;
264
265 mpll_func_cntl_2 &= ~MCLK_MUX_SEL_MASK;
266 mpll_func_cntl_2 |= MCLK_MUX_SEL(1);
267
268 mclk_pwrmgt_cntl = (MRDCKA_RESET |
269 MRDCKB_RESET |
270 MRDCKC_RESET |
271 MRDCKD_RESET |
272 MRDCKE_RESET |
273 MRDCKF_RESET |
274 MRDCKG_RESET |
275 MRDCKH_RESET |
276 MRDCKA_SLEEP |
277 MRDCKB_SLEEP |
278 MRDCKC_SLEEP |
279 MRDCKD_SLEEP |
280 MRDCKE_SLEEP |
281 MRDCKF_SLEEP |
282 MRDCKG_SLEEP |
283 MRDCKH_SLEEP);
284
285 dll_cntl = 0xff000000;
286
287 spll_func_cntl = pi->clk_regs.rv730.cg_spll_func_cntl;
288 spll_func_cntl_2 = pi->clk_regs.rv730.cg_spll_func_cntl_2;
289 spll_func_cntl_3 = pi->clk_regs.rv730.cg_spll_func_cntl_3;
290
291 spll_func_cntl |= SPLL_RESET | SPLL_BYPASS_EN;
292 spll_func_cntl &= ~SPLL_SLEEP;
293
294 spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
295 spll_func_cntl_2 |= SCLK_MUX_SEL(4);
296
297 table->ACPIState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL = cpu_to_be32(mpll_func_cntl);
298 table->ACPIState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL2 = cpu_to_be32(mpll_func_cntl_2);
299 table->ACPIState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL3 = cpu_to_be32(mpll_func_cntl_3);
300 table->ACPIState.levels[0].mclk.mclk730.vMCLK_PWRMGT_CNTL = cpu_to_be32(mclk_pwrmgt_cntl);
301 table->ACPIState.levels[0].mclk.mclk730.vDLL_CNTL = cpu_to_be32(dll_cntl);
302
303 table->ACPIState.levels[0].mclk.mclk730.mclk_value = 0;
304
305 table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL = cpu_to_be32(spll_func_cntl);
306 table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 = cpu_to_be32(spll_func_cntl_2);
307 table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 = cpu_to_be32(spll_func_cntl_3);
308
309 table->ACPIState.levels[0].sclk.sclk_value = 0;
310
311 rv770_populate_mvdd_value(rdev, 0, &table->ACPIState.levels[0].mvdd);
312
313 table->ACPIState.levels[1] = table->ACPIState.levels[0];
314 table->ACPIState.levels[2] = table->ACPIState.levels[0];
315
316 return 0;
317}
318
319int rv730_populate_smc_initial_state(struct radeon_device *rdev,
320 struct radeon_ps *radeon_state,
321 RV770_SMC_STATETABLE *table)
322{
323 struct rv7xx_ps *initial_state = rv770_get_ps(radeon_state);
324 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
325 u32 a_t;
326
327 table->initialState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL =
328 cpu_to_be32(pi->clk_regs.rv730.mpll_func_cntl);
329 table->initialState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL2 =
330 cpu_to_be32(pi->clk_regs.rv730.mpll_func_cntl2);
331 table->initialState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL3 =
332 cpu_to_be32(pi->clk_regs.rv730.mpll_func_cntl3);
333 table->initialState.levels[0].mclk.mclk730.vMCLK_PWRMGT_CNTL =
334 cpu_to_be32(pi->clk_regs.rv730.mclk_pwrmgt_cntl);
335 table->initialState.levels[0].mclk.mclk730.vDLL_CNTL =
336 cpu_to_be32(pi->clk_regs.rv730.dll_cntl);
337 table->initialState.levels[0].mclk.mclk730.vMPLL_SS =
338 cpu_to_be32(pi->clk_regs.rv730.mpll_ss);
339 table->initialState.levels[0].mclk.mclk730.vMPLL_SS2 =
340 cpu_to_be32(pi->clk_regs.rv730.mpll_ss2);
341
342 table->initialState.levels[0].mclk.mclk730.mclk_value =
343 cpu_to_be32(initial_state->low.mclk);
344
345 table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL =
346 cpu_to_be32(pi->clk_regs.rv730.cg_spll_func_cntl);
347 table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 =
348 cpu_to_be32(pi->clk_regs.rv730.cg_spll_func_cntl_2);
349 table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 =
350 cpu_to_be32(pi->clk_regs.rv730.cg_spll_func_cntl_3);
351 table->initialState.levels[0].sclk.vCG_SPLL_SPREAD_SPECTRUM =
352 cpu_to_be32(pi->clk_regs.rv730.cg_spll_spread_spectrum);
353 table->initialState.levels[0].sclk.vCG_SPLL_SPREAD_SPECTRUM_2 =
354 cpu_to_be32(pi->clk_regs.rv730.cg_spll_spread_spectrum_2);
355
356 table->initialState.levels[0].sclk.sclk_value =
357 cpu_to_be32(initial_state->low.sclk);
358
359 table->initialState.levels[0].arbValue = MC_CG_ARB_FREQ_F0;
360
361 table->initialState.levels[0].seqValue =
362 rv770_get_seq_value(rdev, &initial_state->low);
363
364 rv770_populate_vddc_value(rdev,
365 initial_state->low.vddc,
366 &table->initialState.levels[0].vddc);
367 rv770_populate_initial_mvdd_value(rdev,
368 &table->initialState.levels[0].mvdd);
369
370 a_t = CG_R(0xffff) | CG_L(0);
371
372 table->initialState.levels[0].aT = cpu_to_be32(a_t);
373
374 table->initialState.levels[0].bSP = cpu_to_be32(pi->dsp);
375
376 if (pi->boot_in_gen2)
377 table->initialState.levels[0].gen2PCIE = 1;
378 else
379 table->initialState.levels[0].gen2PCIE = 0;
380 if (initial_state->low.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2)
381 table->initialState.levels[0].gen2XSP = 1;
382 else
383 table->initialState.levels[0].gen2XSP = 0;
384
385 table->initialState.levels[1] = table->initialState.levels[0];
386 table->initialState.levels[2] = table->initialState.levels[0];
387
388 table->initialState.flags |= PPSMC_SWSTATE_FLAG_DC;
389
390 return 0;
391}
392
393void rv730_program_memory_timing_parameters(struct radeon_device *rdev,
394 struct radeon_ps *radeon_state)
395{
396 struct rv7xx_ps *state = rv770_get_ps(radeon_state);
397 u32 arb_refresh_rate = 0;
398 u32 dram_timing = 0;
399 u32 dram_timing2 = 0;
400 u32 old_dram_timing = 0;
401 u32 old_dram_timing2 = 0;
402
403 arb_refresh_rate = RREG32(MC_ARB_RFSH_RATE) &
404 ~(POWERMODE1_MASK | POWERMODE2_MASK | POWERMODE3_MASK);
405 arb_refresh_rate |=
406 (POWERMODE1(rv770_calculate_memory_refresh_rate(rdev, state->low.sclk)) |
407 POWERMODE2(rv770_calculate_memory_refresh_rate(rdev, state->medium.sclk)) |
408 POWERMODE3(rv770_calculate_memory_refresh_rate(rdev, state->high.sclk)));
409 WREG32(MC_ARB_RFSH_RATE, arb_refresh_rate);
410
411 /* save the boot dram timings */
412 old_dram_timing = RREG32(MC_ARB_DRAM_TIMING);
413 old_dram_timing2 = RREG32(MC_ARB_DRAM_TIMING2);
414
415 radeon_atom_set_engine_dram_timings(rdev,
416 state->high.sclk,
417 state->high.mclk);
418
419 dram_timing = RREG32(MC_ARB_DRAM_TIMING);
420 dram_timing2 = RREG32(MC_ARB_DRAM_TIMING2);
421
422 WREG32(MC_ARB_DRAM_TIMING_3, dram_timing);
423 WREG32(MC_ARB_DRAM_TIMING2_3, dram_timing2);
424
425 radeon_atom_set_engine_dram_timings(rdev,
426 state->medium.sclk,
427 state->medium.mclk);
428
429 dram_timing = RREG32(MC_ARB_DRAM_TIMING);
430 dram_timing2 = RREG32(MC_ARB_DRAM_TIMING2);
431
432 WREG32(MC_ARB_DRAM_TIMING_2, dram_timing);
433 WREG32(MC_ARB_DRAM_TIMING2_2, dram_timing2);
434
435 radeon_atom_set_engine_dram_timings(rdev,
436 state->low.sclk,
437 state->low.mclk);
438
439 dram_timing = RREG32(MC_ARB_DRAM_TIMING);
440 dram_timing2 = RREG32(MC_ARB_DRAM_TIMING2);
441
442 WREG32(MC_ARB_DRAM_TIMING_1, dram_timing);
443 WREG32(MC_ARB_DRAM_TIMING2_1, dram_timing2);
444
445 /* restore the boot dram timings */
446 WREG32(MC_ARB_DRAM_TIMING, old_dram_timing);
447 WREG32(MC_ARB_DRAM_TIMING2, old_dram_timing2);
448
449}
450
451void rv730_start_dpm(struct radeon_device *rdev)
452{
453 WREG32_P(SCLK_PWRMGT_CNTL, 0, ~SCLK_PWRMGT_OFF);
454
455 WREG32_P(TCI_MCLK_PWRMGT_CNTL, 0, ~MPLL_PWRMGT_OFF);
456
457 WREG32_P(GENERAL_PWRMGT, GLOBAL_PWRMGT_EN, ~GLOBAL_PWRMGT_EN);
458}
459
460void rv730_stop_dpm(struct radeon_device *rdev)
461{
462 PPSMC_Result result;
463
464 result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_TwoLevelsDisabled);
465
466 if (result != PPSMC_Result_OK)
467 DRM_ERROR("Could not force DPM to low\n");
468
469 WREG32_P(GENERAL_PWRMGT, 0, ~GLOBAL_PWRMGT_EN);
470
471 WREG32_P(SCLK_PWRMGT_CNTL, SCLK_PWRMGT_OFF, ~SCLK_PWRMGT_OFF);
472
473 WREG32_P(TCI_MCLK_PWRMGT_CNTL, MPLL_PWRMGT_OFF, ~MPLL_PWRMGT_OFF);
474}
475
476void rv730_program_dcodt(struct radeon_device *rdev, bool use_dcodt)
477{
478 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
479 u32 i = use_dcodt ? 0 : 1;
480 u32 mc4_io_pad_cntl;
481
482 mc4_io_pad_cntl = RREG32(MC4_IO_DQ_PAD_CNTL_D0_I0);
483 mc4_io_pad_cntl &= 0xFFFFFF00;
484 mc4_io_pad_cntl |= pi->odt_value_0[i];
485 WREG32(MC4_IO_DQ_PAD_CNTL_D0_I0, mc4_io_pad_cntl);
486 WREG32(MC4_IO_DQ_PAD_CNTL_D0_I1, mc4_io_pad_cntl);
487
488 mc4_io_pad_cntl = RREG32(MC4_IO_QS_PAD_CNTL_D0_I0);
489 mc4_io_pad_cntl &= 0xFFFFFF00;
490 mc4_io_pad_cntl |= pi->odt_value_1[i];
491 WREG32(MC4_IO_QS_PAD_CNTL_D0_I0, mc4_io_pad_cntl);
492 WREG32(MC4_IO_QS_PAD_CNTL_D0_I1, mc4_io_pad_cntl);
493}
494
495void rv730_get_odt_values(struct radeon_device *rdev)
496{
497 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
498 u32 mc4_io_pad_cntl;
499
500 pi->odt_value_0[0] = (u8)0;
501 pi->odt_value_1[0] = (u8)0x80;
502
503 mc4_io_pad_cntl = RREG32(MC4_IO_DQ_PAD_CNTL_D0_I0);
504 pi->odt_value_0[1] = (u8)(mc4_io_pad_cntl & 0xff);
505
506 mc4_io_pad_cntl = RREG32(MC4_IO_QS_PAD_CNTL_D0_I0);
507 pi->odt_value_1[1] = (u8)(mc4_io_pad_cntl & 0xff);
508}
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-23 07:11:13 -0500