drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mmhubbub.c

   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
  76 static 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
 153 static 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
 207 void 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         REG_UPDATE(MCIF_WB_BUFMGR_VCE_CONTROL, MCIF_WB_BUFMGR_VCE_SLICE_INT_EN,  params->vce_slice_int_en);
 219 }
 220
 221 void mmhubbub2_enable_mcif(struct mcif_wb *mcif_wb)
 222 {
 223         struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
 224
 225         /* Enable Mcifwb */
 226         REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_ENABLE, 1);
 227 }
 228
 229 void mmhubbub2_disable_mcif(struct mcif_wb *mcif_wb)
 230 {
 231         struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
 232
 233         /* disable buffer manager */
 234         REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_ENABLE, 0);
 235 }
 236
 237 /* set which group of pstate watermark to use and set wbif watermark change request */
 238 /*
 239 static void mmhubbub2_wbif_watermark_change_req(struct mcif_wb *mcif_wb, unsigned int wm_set)
 240 {
 241         struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
 242         uint32_t change_req;
 243
 244         REG_GET(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_REQ, &change_req);
 245         change_req = (change_req == 0) ? 1 : 0;
 246         REG_UPDATE(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_SEL, wm_set);
 247         REG_UPDATE(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_REQ, change_req);
 248 }
 249 */
 250 /* Set watermark change interrupt disable bit */
 251 /*
 252 static void mmhubbub2_set_wbif_watermark_change_int_disable(struct mcif_wb *mcif_wb, unsigned int ack_int_dis)
 253 {
 254         struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
 255
 256         REG_UPDATE(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_ACK_INT_DIS, ack_int_dis);
 257 }
 258 */
 259 /* Read watermark change interrupt status */
 260 /*
 261 unsigned int mmhubbub2_get_wbif_watermark_change_int_status(struct mcif_wb *mcif_wb)
 262 {
 263         struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
 264         uint32_t irq_status;
 265
 266         REG_GET(SMU_WM_CONTROL, MCIF_WB0_WM_CHG_ACK_INT_STATUS, &irq_status);
 267         return irq_status;
 268 }
 269 */
 270
 271 void mcifwb2_dump_frame(struct mcif_wb *mcif_wb,
 272                 struct mcif_buf_params *mcif_params,
 273                 enum dwb_scaler_mode out_format,
 274                 unsigned int dest_width,
 275                 unsigned int dest_height,
 276                 struct mcif_wb_frame_dump_info *dump_info,
 277                 unsigned char *luma_buffer,
 278                 unsigned char *chroma_buffer,
 279                 unsigned char *dest_luma_buffer,
 280                 unsigned char *dest_chroma_buffer)
 281 {
 282         struct dcn20_mmhubbub *mcif_wb20 = TO_DCN20_MMHUBBUB(mcif_wb);
 283
 284         REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_SW_LOCK, 0xf);
 285
 286         memcpy(dest_luma_buffer,   luma_buffer,   mcif_params->luma_pitch * dest_height);
 287         memcpy(dest_chroma_buffer, chroma_buffer, mcif_params->chroma_pitch * dest_height / 2);
 288
 289         REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUFMGR_SW_LOCK, 0x0);
 290
 291         dump_info->format       = out_format;
 292         dump_info->width        = dest_width;
 293         dump_info->height       = dest_height;
 294         dump_info->luma_pitch   = mcif_params->luma_pitch;
 295         dump_info->chroma_pitch = mcif_params->chroma_pitch;
 296         dump_info->size         = dest_height * (mcif_params->luma_pitch + mcif_params->chroma_pitch);
 297 }
 298
 299 const struct mcif_wb_funcs dcn20_mmhubbub_funcs = {
 300         .enable_mcif            = mmhubbub2_enable_mcif,
 301         .disable_mcif           = mmhubbub2_disable_mcif,
 302         .config_mcif_buf        = mmhubbub2_config_mcif_buf,
 303         .config_mcif_arb        = mmhubbub2_config_mcif_arb,
 304         .config_mcif_irq        = mmhubbub2_config_mcif_irq,
 305         .dump_frame             = mcifwb2_dump_frame,
 306 };
 307
 308 void dcn20_mmhubbub_construct(struct dcn20_mmhubbub *mcif_wb20,
 309                 struct dc_context *ctx,
 310                 const struct dcn20_mmhubbub_registers *mcif_wb_regs,
 311                 const struct dcn20_mmhubbub_shift *mcif_wb_shift,
 312                 const struct dcn20_mmhubbub_mask *mcif_wb_mask,
 313                 int inst)
 314 {
 315         mcif_wb20->base.ctx = ctx;
 316
 317         mcif_wb20->base.inst = inst;
 318         mcif_wb20->base.funcs = &dcn20_mmhubbub_funcs;
 319
 320         mcif_wb20->mcif_wb_regs = mcif_wb_regs;
 321         mcif_wb20->mcif_wb_shift = mcif_wb_shift;
 322         mcif_wb20->mcif_wb_mask = mcif_wb_mask;
 323 }