1/*
2 * Copyright 2012-15 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: AMD
23 *
24 */
25
26
27#include "reg_helper.h"
28#include "resource.h"
29#include "mcif_wb.h"
30#include "dcn20_mmhubbub.h"
31
32
33#define REG(reg)\
34 mcif_wb20->mcif_wb_regs->reg
35
36#define CTX \
37 mcif_wb20->base.ctx
38
39#undef FN
40#define FN(reg_name, field_name) \
41 mcif_wb20->mcif_wb_shift->field_name, mcif_wb20->mcif_wb_mask->field_name
42
43#define MCIF_ADDR(addr) (((unsigned long long)addr & 0xffffffffff) + 0xFE) >> 8
44#define MCIF_ADDR_HIGH(addr) (unsigned long long)addr >> 40
45
46/* wbif programming guide:
47 * 1. set up wbif parameter:
48 * unsigned long long luma_address[4]; //4 frame buffer
49 * unsigned long long chroma_address[4];
50 * unsigned int luma_pitch;
51 * unsigned int chroma_pitch;
52 * unsigned int warmup_pitch=0x10; //256B align, the page size is 4KB when it is 0x10
53 * unsigned int slice_lines; //slice size
54 * unsigned int time_per_pixel; // time per pixel, in ns
55 * unsigned int arbitration_slice; // 0: 512 bytes 1: 1024 bytes 2: 2048 Bytes
56 * unsigned int max_scaled_time; // used for QOS generation
57 * unsigned int swlock=0x0;
58 * unsigned int cli_watermark[4]; //4 group urgent watermark
59 * unsigned int pstate_watermark[4]; //4 group pstate watermark
60 * unsigned int sw_int_en; // Software interrupt enable, frame end and overflow
61 * unsigned int sw_slice_int_en; // slice end interrupt enable
62 * unsigned int sw_overrun_int_en; // overrun error interrupt enable
63 * unsigned int vce_int_en; // VCE interrupt enable, frame end and overflow
64 * unsigned int vce_slice_int_en; // VCE slice end interrupt enable, frame end and overflow
65 *
66 * 2. configure wbif register
67 * a. call mmhubbub_config_wbif()
68 *
69 * 3. Enable wbif
70 * call set_wbif_bufmgr_enable();
71 *
72 * 4. wbif_dump_status(), option, for debug purpose
73 * the bufmgr status can show the progress of write back, can be used for debug purpose
74 */
75
76static void mmhubbub2_config_mcif_buf(struct mcif_wb *mcif_wb,
77 struct mcif_buf_params *params,
78 unsigned int dest_height)
79{
80 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
81
82 /* sw lock buffer0~buffer3, default is 0 */
83 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_SW_LOCK, params->swlock);
84
85 /* buffer address for packing mode or Luma in planar mode */
86 REG_UPDATE(MCIF_WB_BUF_1_ADDR_Y, MCIF_WB_BUF_1_ADDR_Y, MCIF_ADDR(params->luma_address[0]));
87 REG_UPDATE(MCIF_WB_BUF_1_ADDR_Y_HIGH, MCIF_WB_BUF_1_ADDR_Y_HIGH, MCIF_ADDR_HIGH(params->luma_address[0]));
88 /* right eye sub-buffer address offset for packing mode or Luma in planar mode */
89 REG_UPDATE(MCIF_WB_BUF_1_ADDR_Y_OFFSET, MCIF_WB_BUF_1_ADDR_Y_OFFSET, 0);
90
91 /* buffer address for Chroma in planar mode (unused in packing mode) */
92 REG_UPDATE(MCIF_WB_BUF_1_ADDR_C, MCIF_WB_BUF_1_ADDR_C, MCIF_ADDR(params->chroma_address[0]));
93 REG_UPDATE(MCIF_WB_BUF_1_ADDR_C_HIGH, MCIF_WB_BUF_1_ADDR_C_HIGH, MCIF_ADDR_HIGH(params->chroma_address[0]));
94 /* right eye offset for packing mode or Luma in planar mode */
95 REG_UPDATE(MCIF_WB_BUF_1_ADDR_C_OFFSET, MCIF_WB_BUF_1_ADDR_C_OFFSET, 0);
96
97 /* buffer address for packing mode or Luma in planar mode */
98 REG_UPDATE(MCIF_WB_BUF_2_ADDR_Y, MCIF_WB_BUF_2_ADDR_Y, MCIF_ADDR(params->luma_address[1]));
99 REG_UPDATE(MCIF_WB_BUF_2_ADDR_Y_HIGH, MCIF_WB_BUF_2_ADDR_Y_HIGH, MCIF_ADDR_HIGH(params->luma_address[1]));
100 /* right eye sub-buffer address offset for packing mode or Luma in planar mode */
101 REG_UPDATE(MCIF_WB_BUF_2_ADDR_Y_OFFSET, MCIF_WB_BUF_2_ADDR_Y_OFFSET, 0);
102
103 /* buffer address for Chroma in planar mode (unused in packing mode) */
104 REG_UPDATE(MCIF_WB_BUF_2_ADDR_C, MCIF_WB_BUF_2_ADDR_C, MCIF_ADDR(params->chroma_address[1]));
105 REG_UPDATE(MCIF_WB_BUF_2_ADDR_C_HIGH, MCIF_WB_BUF_2_ADDR_C_HIGH, MCIF_ADDR_HIGH(params->chroma_address[1]));
106 /* right eye offset for packing mode or Luma in planar mode */
107 REG_UPDATE(MCIF_WB_BUF_2_ADDR_C_OFFSET, MCIF_WB_BUF_2_ADDR_C_OFFSET, 0);
108
109 /* buffer address for packing mode or Luma in planar mode */
110 REG_UPDATE(MCIF_WB_BUF_3_ADDR_Y, MCIF_WB_BUF_3_ADDR_Y, MCIF_ADDR(params->luma_address[2]));
111 REG_UPDATE(MCIF_WB_BUF_3_ADDR_Y_HIGH, MCIF_WB_BUF_3_ADDR_Y_HIGH, MCIF_ADDR_HIGH(params->luma_address[2]));
112 /* right eye sub-buffer address offset for packing mode or Luma in planar mode */
113 REG_UPDATE(MCIF_WB_BUF_3_ADDR_Y_OFFSET, MCIF_WB_BUF_3_ADDR_Y_OFFSET, 0);
114
115 /* buffer address for Chroma in planar mode (unused in packing mode) */
116 REG_UPDATE(MCIF_WB_BUF_3_ADDR_C, MCIF_WB_BUF_3_ADDR_C, MCIF_ADDR(params->chroma_address[2]));
117 REG_UPDATE(MCIF_WB_BUF_3_ADDR_C_HIGH, MCIF_WB_BUF_3_ADDR_C_HIGH, MCIF_ADDR_HIGH(params->chroma_address[2]));
118 /* right eye offset for packing mode or Luma in planar mode */
119 REG_UPDATE(MCIF_WB_BUF_3_ADDR_C_OFFSET, MCIF_WB_BUF_3_ADDR_C_OFFSET, 0);
120
121 /* buffer address for packing mode or Luma in planar mode */
122 REG_UPDATE(MCIF_WB_BUF_4_ADDR_Y, MCIF_WB_BUF_4_ADDR_Y, MCIF_ADDR(params->luma_address[3]));
123 REG_UPDATE(MCIF_WB_BUF_4_ADDR_Y_HIGH, MCIF_WB_BUF_4_ADDR_Y_HIGH, MCIF_ADDR_HIGH(params->luma_address[3]));
124 /* right eye sub-buffer address offset for packing mode or Luma in planar mode */
125 REG_UPDATE(MCIF_WB_BUF_4_ADDR_Y_OFFSET, MCIF_WB_BUF_4_ADDR_Y_OFFSET, 0);
126
127 /* buffer address for Chroma in planar mode (unused in packing mode) */
128 REG_UPDATE(MCIF_WB_BUF_4_ADDR_C, MCIF_WB_BUF_4_ADDR_C, MCIF_ADDR(params->chroma_address[3]));
129 REG_UPDATE(MCIF_WB_BUF_4_ADDR_C_HIGH, MCIF_WB_BUF_4_ADDR_C_HIGH, MCIF_ADDR_HIGH(params->chroma_address[3]));
130 /* right eye offset for packing mode or Luma in planar mode */
131 REG_UPDATE(MCIF_WB_BUF_4_ADDR_C_OFFSET, MCIF_WB_BUF_4_ADDR_C_OFFSET, 0);
132
133 /* setup luma & chroma size
134 * should be enough to contain a whole frame Luma data,
135 * the programmed value is frame buffer size [27:8], 256-byte aligned
136 */
137 REG_UPDATE(MCIF_WB_BUF_LUMA_SIZE, MCIF_WB_BUF_LUMA_SIZE, (params->luma_pitch>>8) * dest_height);
138 REG_UPDATE(MCIF_WB_BUF_CHROMA_SIZE, MCIF_WB_BUF_CHROMA_SIZE, (params->chroma_pitch>>8) * dest_height);
139
140 /* enable address fence */
141 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUF_ADDR_FENCE_EN, 1);
142
143 /* setup pitch, the programmed value is [15:8], 256B align */
144 REG_UPDATE_2(MCIF_WB_BUF_PITCH, MCIF_WB_BUF_LUMA_PITCH, params->luma_pitch >> 8,
145 MCIF_WB_BUF_CHROMA_PITCH, params->chroma_pitch >> 8);
146
147 /* Set pitch for MC cache warm up mode */
148 /* Pitch is 256 bytes aligned. The default pitch is 4K */
149 /* default is 0x10 */
150 REG_UPDATE(MCIF_WB_WARM_UP_CNTL, MCIF_WB_PITCH_SIZE_WARMUP, params->warmup_pitch);
151}
152
153static void mmhubbub2_config_mcif_arb(struct mcif_wb *mcif_wb,
154 struct mcif_arb_params *params)
155{
156 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
157
158 /* Programmed by the video driver based on the CRTC timing (for DWB) */
159 REG_UPDATE(MCIF_WB_ARBITRATION_CONTROL, MCIF_WB_TIME_PER_PIXEL, params->time_per_pixel);
160
161 /* Programming dwb watermark */
162 /* Watermark to generate urgent in MCIF_WB_CLI, value is determined by MCIF_WB_CLI_WATERMARK_MASK. */
163 /* Program in ns. A formula will be provided in the pseudo code to calculate the value. */
164 REG_UPDATE(MCIF_WB_SCLK_CHANGE, MCIF_WB_CLI_WATERMARK_MASK, 0x0);
165 /* urgent_watermarkA */
166 REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK, params->cli_watermark[0]);
167 REG_UPDATE(MCIF_WB_SCLK_CHANGE, MCIF_WB_CLI_WATERMARK_MASK, 0x1);
168 /* urgent_watermarkB */
169 REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK, params->cli_watermark[1]);
170 REG_UPDATE(MCIF_WB_SCLK_CHANGE, MCIF_WB_CLI_WATERMARK_MASK, 0x2);
171 /* urgent_watermarkC */
172 REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK, params->cli_watermark[2]);
173 REG_UPDATE(MCIF_WB_SCLK_CHANGE, MCIF_WB_CLI_WATERMARK_MASK, 0x3);
174 /* urgent_watermarkD */
175 REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK, params->cli_watermark[3]);
176
177 /* Programming nb pstate watermark */
178 /* nbp_state_change_watermarkA */
179 REG_UPDATE(MCIF_WB_NB_PSTATE_CONTROL, NB_PSTATE_CHANGE_WATERMARK_MASK, 0x0);
180 REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK,
181 NB_PSTATE_CHANGE_REFRESH_WATERMARK, params->pstate_watermark[0]);
182 /* nbp_state_change_watermarkB */
183 REG_UPDATE(MCIF_WB_NB_PSTATE_CONTROL, NB_PSTATE_CHANGE_WATERMARK_MASK, 0x1);
184 REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK,
185 NB_PSTATE_CHANGE_REFRESH_WATERMARK, params->pstate_watermark[1]);
186 /* nbp_state_change_watermarkC */
187 REG_UPDATE(MCIF_WB_NB_PSTATE_CONTROL, NB_PSTATE_CHANGE_WATERMARK_MASK, 0x2);
188 REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK,
189 NB_PSTATE_CHANGE_REFRESH_WATERMARK, params->pstate_watermark[2]);
190 /* nbp_state_change_watermarkD */
191 REG_UPDATE(MCIF_WB_NB_PSTATE_CONTROL, NB_PSTATE_CHANGE_WATERMARK_MASK, 0x3);
192 REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK,
193 NB_PSTATE_CHANGE_REFRESH_WATERMARK, params->pstate_watermark[3]);
194
195 /* max_scaled_time */
196 REG_UPDATE(MULTI_LEVEL_QOS_CTRL, MAX_SCALED_TIME_TO_URGENT, params->max_scaled_time);
197
198 /* slice_lines */
199 REG_UPDATE(MCIF_WB_BUFMGR_VCE_CONTROL, MCIF_WB_BUFMGR_SLICE_SIZE, params->slice_lines-1);
200
201 /* Set arbitration unit for Luma/Chroma */
202 /* arb_unit=2 should be chosen for more efficiency */
203 /* Arbitration size, 0: 512 bytes 1: 1024 bytes 2: 2048 Bytes */
204 REG_UPDATE(MCIF_WB_ARBITRATION_CONTROL, MCIF_WB_CLIENT_ARBITRATION_SLICE, params->arbitration_slice);
205}
206
207void mmhubbub2_config_mcif_irq(struct mcif_wb *mcif_wb,
208 struct mcif_irq_params *params)
209{
210 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
211
212 /* Set interrupt mask */
213 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_SW_INT_EN, params->sw_int_en);
214 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_SW_SLICE_INT_EN, params->sw_slice_int_en);
215 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_SW_OVERRUN_INT_EN, params->sw_overrun_int_en);
216
217 REG_UPDATE(MCIF_WB_BUFMGR_VCE_CONTROL, MCIF_WB_BUFMGR_VCE_INT_EN, params->vce_int_en);
218 if (mcif_wb20->mcif_wb_mask->MCIF_WB_BUFMGR_VCE_SLICE_INT_EN)
219 REG_UPDATE(MCIF_WB_BUFMGR_VCE_CONTROL, MCIF_WB_BUFMGR_VCE_SLICE_INT_EN, params->vce_slice_int_en);
220}
221
222void mmhubbub2_enable_mcif(struct mcif_wb *mcif_wb)
223{
224 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
225
226 /* Enable Mcifwb */
227 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_ENABLE, 1);
228}
229
230void mmhubbub2_disable_mcif(struct mcif_wb *mcif_wb)
231{
232 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
233
234 /* disable buffer manager */
235 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_ENABLE, 0);
236}
237
238/* set which group of pstate watermark to use and set wbif watermark change request */
239/*
240static void mmhubbub2_wbif_watermark_change_req(struct mcif_wb *mcif_wb, unsigned int wm_set)
241{
242 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
243 uint32_t change_req;
244
245 REG_GET(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_REQ, &change_req);
246 change_req = (change_req == 0) ? 1 : 0;
247 REG_UPDATE(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_SEL, wm_set);
248 REG_UPDATE(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_REQ, change_req);
249}
250*/
251/* Set watermark change interrupt disable bit */
252/*
253static void mmhubbub2_set_wbif_watermark_change_int_disable(struct mcif_wb *mcif_wb, unsigned int ack_int_dis)
254{
255 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
256
257 REG_UPDATE(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_ACK_INT_DIS, ack_int_dis);
258}
259*/
260/* Read watermark change interrupt status */
261/*
262unsigned int mmhubbub2_get_wbif_watermark_change_int_status(struct mcif_wb *mcif_wb)
263{
264 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
265 uint32_t irq_status;
266
267 REG_GET(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_ACK_INT_STATUS, &irq_status);
268 return irq_status;
269}
270*/
271
272void mcifwb2_dump_frame(struct mcif_wb *mcif_wb,
273 struct mcif_buf_params *mcif_params,
274 enum dwb_scaler_mode out_format,
275 unsigned int dest_width,
276 unsigned int dest_height,
277 struct mcif_wb_frame_dump_info *dump_info,
278 unsigned char *luma_buffer,
279 unsigned char *chroma_buffer,
280 unsigned char *dest_luma_buffer,
281 unsigned char *dest_chroma_buffer)
282{
283 struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
284
285 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_SW_LOCK, 0xf);
286
287 memcpy(dest_luma_buffer, luma_buffer, mcif_params->luma_pitch * dest_height);
288 memcpy(dest_chroma_buffer, chroma_buffer, mcif_params->chroma_pitch * dest_height / 2);
289
290 REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_SW_LOCK, 0x0);
291
292 dump_info->format = out_format;
293 dump_info->width = dest_width;
294 dump_info->height = dest_height;
295 dump_info->luma_pitch = mcif_params->luma_pitch;
296 dump_info->chroma_pitch = mcif_params->chroma_pitch;
297 dump_info->size = dest_height * (mcif_params->luma_pitch + mcif_params->chroma_pitch);
298}
299
300static const struct mcif_wb_funcs dcn20_mmhubbub_funcs = {
301 .enable_mcif = mmhubbub2_enable_mcif,
302 .disable_mcif = mmhubbub2_disable_mcif,
303 .config_mcif_buf = mmhubbub2_config_mcif_buf,
304 .config_mcif_arb = mmhubbub2_config_mcif_arb,
305 .config_mcif_irq = mmhubbub2_config_mcif_irq,
306 .dump_frame = mcifwb2_dump_frame,
307};
308
309void dcn20_mmhubbub_construct(struct dcn20_mmhubbub *mcif_wb20,
310 struct dc_context *ctx,
311 const struct dcn20_mmhubbub_registers *mcif_wb_regs,
312 const struct dcn20_mmhubbub_shift *mcif_wb_shift,
313 const struct dcn20_mmhubbub_mask *mcif_wb_mask,
314 int inst)
315{
316 mcif_wb20->base.ctx = ctx;
317
318 mcif_wb20->base.inst = inst;
319 mcif_wb20->base.funcs = &dcn20_mmhubbub_funcs;
320
321 mcif_wb20->mcif_wb_regs = mcif_wb_regs;
322 mcif_wb20->mcif_wb_shift = mcif_wb_shift;
323 mcif_wb20->mcif_wb_mask = mcif_wb_mask;
324}
325

source code of linux/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mmhubbub.c