host1x/hw/debug_hw.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Copyright (C) 2010 Google, Inc.
0004  * Author: Erik Gilling <konkers@android.com>
0005  *
0006  * Copyright (C) 2011-2013 NVIDIA Corporation
0007  */
0008
0009 #include "../dev.h"
0010 #include "../debug.h"
0011 #include "../cdma.h"
0012 #include "../channel.h"
0013
0014 #define HOST1X_DEBUG_MAX_PAGE_OFFSET 102400
0015
0016 enum {
0017     HOST1X_OPCODE_SETCLASS  = 0x00,
0018     HOST1X_OPCODE_INCR  = 0x01,
0019     HOST1X_OPCODE_NONINCR   = 0x02,
0020     HOST1X_OPCODE_MASK  = 0x03,
0021     HOST1X_OPCODE_IMM   = 0x04,
0022     HOST1X_OPCODE_RESTART   = 0x05,
0023     HOST1X_OPCODE_GATHER    = 0x06,
0024     HOST1X_OPCODE_SETSTRMID = 0x07,
0025     HOST1X_OPCODE_SETAPPID  = 0x08,
0026     HOST1X_OPCODE_SETPYLD   = 0x09,
0027     HOST1X_OPCODE_INCR_W    = 0x0a,
0028     HOST1X_OPCODE_NONINCR_W = 0x0b,
0029     HOST1X_OPCODE_GATHER_W  = 0x0c,
0030     HOST1X_OPCODE_RESTART_W = 0x0d,
0031     HOST1X_OPCODE_EXTEND    = 0x0e,
0032 };
0033
0034 enum {
0035     HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK  = 0x00,
0036     HOST1X_OPCODE_EXTEND_RELEASE_MLOCK  = 0x01,
0037 };
0038
0039 #define INVALID_PAYLOAD             0xffffffff
0040
0041 static unsigned int show_channel_command(struct output *o, u32 val,
0042                      u32 *payload)
0043 {
0044     unsigned int mask, subop, num, opcode;
0045
0046     opcode = val >> 28;
0047
0048     switch (opcode) {
0049     case HOST1X_OPCODE_SETCLASS:
0050         mask = val & 0x3f;
0051         if (mask) {
0052             host1x_debug_cont(o, "SETCL(class=%03x, offset=%03x, mask=%02x, [",
0053                         val >> 6 & 0x3ff,
0054                         val >> 16 & 0xfff, mask);
0055             return hweight8(mask);
0056         }
0057
0058         host1x_debug_cont(o, "SETCL(class=%03x)\n", val >> 6 & 0x3ff);
0059         return 0;
0060
0061     case HOST1X_OPCODE_INCR:
0062         num = val & 0xffff;
0063         host1x_debug_cont(o, "INCR(offset=%03x, [",
0064                     val >> 16 & 0xfff);
0065         if (!num)
0066             host1x_debug_cont(o, "])\n");
0067
0068         return num;
0069
0070     case HOST1X_OPCODE_NONINCR:
0071         num = val & 0xffff;
0072         host1x_debug_cont(o, "NONINCR(offset=%03x, [",
0073                     val >> 16 & 0xfff);
0074         if (!num)
0075             host1x_debug_cont(o, "])\n");
0076
0077         return num;
0078
0079     case HOST1X_OPCODE_MASK:
0080         mask = val & 0xffff;
0081         host1x_debug_cont(o, "MASK(offset=%03x, mask=%03x, [",
0082                     val >> 16 & 0xfff, mask);
0083         if (!mask)
0084             host1x_debug_cont(o, "])\n");
0085
0086         return hweight16(mask);
0087
0088     case HOST1X_OPCODE_IMM:
0089         host1x_debug_cont(o, "IMM(offset=%03x, data=%03x)\n",
0090                     val >> 16 & 0xfff, val & 0xffff);
0091         return 0;
0092
0093     case HOST1X_OPCODE_RESTART:
0094         host1x_debug_cont(o, "RESTART(offset=%08x)\n", val << 4);
0095         return 0;
0096
0097     case HOST1X_OPCODE_GATHER:
0098         host1x_debug_cont(o, "GATHER(offset=%03x, insert=%d, type=%d, count=%04x, addr=[",
0099                     val >> 16 & 0xfff, val >> 15 & 0x1,
0100                     val >> 14 & 0x1, val & 0x3fff);
0101         return 1;
0102
0103 #if HOST1X_HW >= 6
0104     case HOST1X_OPCODE_SETSTRMID:
0105         host1x_debug_cont(o, "SETSTRMID(offset=%06x)\n",
0106                   val & 0x3fffff);
0107         return 0;
0108
0109     case HOST1X_OPCODE_SETAPPID:
0110         host1x_debug_cont(o, "SETAPPID(appid=%02x)\n", val & 0xff);
0111         return 0;
0112
0113     case HOST1X_OPCODE_SETPYLD:
0114         *payload = val & 0xffff;
0115         host1x_debug_cont(o, "SETPYLD(data=%04x)\n", *payload);
0116         return 0;
0117
0118     case HOST1X_OPCODE_INCR_W:
0119     case HOST1X_OPCODE_NONINCR_W:
0120         host1x_debug_cont(o, "%s(offset=%06x, ",
0121                   opcode == HOST1X_OPCODE_INCR_W ?
0122                     "INCR_W" : "NONINCR_W",
0123                   val & 0x3fffff);
0124         if (*payload == 0) {
0125             host1x_debug_cont(o, "[])\n");
0126             return 0;
0127         } else if (*payload == INVALID_PAYLOAD) {
0128             host1x_debug_cont(o, "unknown)\n");
0129             return 0;
0130         } else {
0131             host1x_debug_cont(o, "[");
0132             return *payload;
0133         }
0134
0135     case HOST1X_OPCODE_GATHER_W:
0136         host1x_debug_cont(o, "GATHER_W(count=%04x, addr=[",
0137                   val & 0x3fff);
0138         return 2;
0139 #endif
0140
0141     case HOST1X_OPCODE_EXTEND:
0142         subop = val >> 24 & 0xf;
0143         if (subop == HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK)
0144             host1x_debug_cont(o, "ACQUIRE_MLOCK(index=%d)\n",
0145                         val & 0xff);
0146         else if (subop == HOST1X_OPCODE_EXTEND_RELEASE_MLOCK)
0147             host1x_debug_cont(o, "RELEASE_MLOCK(index=%d)\n",
0148                         val & 0xff);
0149         else
0150             host1x_debug_cont(o, "EXTEND_UNKNOWN(%08x)\n", val);
0151         return 0;
0152
0153     default:
0154         host1x_debug_cont(o, "UNKNOWN\n");
0155         return 0;
0156     }
0157 }
0158
0159 static void show_gather(struct output *o, dma_addr_t phys_addr,
0160             unsigned int words, struct host1x_cdma *cdma,
0161             dma_addr_t pin_addr, u32 *map_addr)
0162 {
0163     /* Map dmaget cursor to corresponding mem handle */
0164     u32 offset = phys_addr - pin_addr;
0165     unsigned int data_count = 0, i;
0166     u32 payload = INVALID_PAYLOAD;
0167
0168     /*
0169      * Sometimes we're given different hardware address to the same
0170      * page - in these cases the offset will get an invalid number and
0171      * we just have to bail out.
0172      */
0173     if (offset > HOST1X_DEBUG_MAX_PAGE_OFFSET) {
0174         host1x_debug_output(o, "[address mismatch]\n");
0175         return;
0176     }
0177
0178     for (i = 0; i < words; i++) {
0179         dma_addr_t addr = phys_addr + i * 4;
0180         u32 val = *(map_addr + offset / 4 + i);
0181
0182         if (!data_count) {
0183             host1x_debug_output(o, "    %pad: %08x: ", &addr, val);
0184             data_count = show_channel_command(o, val, &payload);
0185         } else {
0186             host1x_debug_cont(o, "%08x%s", val,
0187                         data_count > 1 ? ", " : "])\n");
0188             data_count--;
0189         }
0190     }
0191 }
0192
0193 static void show_channel_gathers(struct output *o, struct host1x_cdma *cdma)
0194 {
0195     struct push_buffer *pb = &cdma->push_buffer;
0196     struct host1x_job *job;
0197
0198     list_for_each_entry(job, &cdma->sync_queue, list) {
0199         unsigned int i;
0200
0201         host1x_debug_output(o, "JOB, syncpt %u: %u timeout: %u num_slots: %u num_handles: %u\n",
0202                     job->syncpt->id, job->syncpt_end, job->timeout,
0203                     job->num_slots, job->num_unpins);
0204
0205         show_gather(o, pb->dma + job->first_get, job->num_slots * 2, cdma,
0206                 pb->dma + job->first_get, pb->mapped + job->first_get);
0207
0208         for (i = 0; i < job->num_cmds; i++) {
0209             struct host1x_job_gather *g;
0210             u32 *mapped;
0211
0212             if (job->cmds[i].is_wait)
0213                 continue;
0214
0215             g = &job->cmds[i].gather;
0216
0217             if (job->gather_copy_mapped)
0218                 mapped = (u32 *)job->gather_copy_mapped;
0219             else
0220                 mapped = host1x_bo_mmap(g->bo);
0221
0222             if (!mapped) {
0223                 host1x_debug_output(o, "[could not mmap]\n");
0224                 continue;
0225             }
0226
0227             host1x_debug_output(o, "  GATHER at %pad+%#x, %d words\n",
0228                         &g->base, g->offset, g->words);
0229
0230             show_gather(o, g->base + g->offset, g->words, cdma,
0231                     g->base, mapped);
0232
0233             if (!job->gather_copy_mapped)
0234                 host1x_bo_munmap(g->bo, mapped);
0235         }
0236     }
0237 }
0238
0239 #if HOST1X_HW >= 6
0240 #include "debug_hw_1x06.c"
0241 #else
0242 #include "debug_hw_1x01.c"
0243 #endif
0244
0245 static const struct host1x_debug_ops host1x_debug_ops = {
0246     .show_channel_cdma = host1x_debug_show_channel_cdma,
0247     .show_channel_fifo = host1x_debug_show_channel_fifo,
0248     .show_mlocks = host1x_debug_show_mlocks,
0249 };