drivers/gpu/host1x/hw/debug_hw_1x01.c

   1 /*
   2  * Copyright (C) 2010 Google, Inc.
   3  * Author: Erik Gilling <konkers@android.com>
   4  *
   5  * Copyright (C) 2011-2013 NVIDIA Corporation
   6  *
   7  * This software is licensed under the terms of the GNU General Public
   8  * License version 2, as published by the Free Software Foundation, and
   9  * may be copied, distributed, and modified under those terms.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  */
  17
  18 #include "../dev.h"
  19 #include "../debug.h"
  20 #include "../cdma.h"
  21 #include "../channel.h"
  22
  23 static void host1x_debug_show_channel_cdma(struct host1x *host,
  24                                            struct host1x_channel *ch,
  25                                            struct output *o)
  26 {
  27         struct host1x_cdma *cdma = &ch->cdma;
  28         u32 dmaput, dmaget, dmactrl;
  29         u32 cbstat, cbread;
  30         u32 val, base, baseval;
  31
  32         dmaput = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAPUT);
  33         dmaget = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAGET);
  34         dmactrl = host1x_ch_readl(ch, HOST1X_CHANNEL_DMACTRL);
  35         cbread = host1x_sync_readl(host, HOST1X_SYNC_CBREAD(ch->id));
  36         cbstat = host1x_sync_readl(host, HOST1X_SYNC_CBSTAT(ch->id));
  37
  38         host1x_debug_output(o, "%u-%s: ", ch->id, dev_name(ch->dev));
  39
  40         if (HOST1X_CHANNEL_DMACTRL_DMASTOP_V(dmactrl) ||
  41             !ch->cdma.push_buffer.mapped) {
  42                 host1x_debug_output(o, "inactive\n\n");
  43                 return;
  44         }
  45
  46         if (HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat) == HOST1X_CLASS_HOST1X &&
  47             HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat) ==
  48                         HOST1X_UCLASS_WAIT_SYNCPT)
  49                 host1x_debug_output(o, "waiting on syncpt %d val %d\n",
  50                                     cbread >> 24, cbread & 0xffffff);
  51         else if (HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat) ==
  52                                 HOST1X_CLASS_HOST1X &&
  53                  HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat) ==
  54                                 HOST1X_UCLASS_WAIT_SYNCPT_BASE) {
  55                 base = (cbread >> 16) & 0xff;
  56                 baseval =
  57                         host1x_sync_readl(host, HOST1X_SYNC_SYNCPT_BASE(base));
  58                 val = cbread & 0xffff;
  59                 host1x_debug_output(o, "waiting on syncpt %d val %d (base %d = %d; offset = %d)\n",
  60                                     cbread >> 24, baseval + val, base,
  61                                     baseval, val);
  62         } else
  63                 host1x_debug_output(o, "active class %02x, offset %04x, val %08x\n",
  64                                     HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat),
  65                                     HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat),
  66                                     cbread);
  67
  68         host1x_debug_output(o, "DMAPUT %08x, DMAGET %08x, DMACTL %08x\n",
  69                             dmaput, dmaget, dmactrl);
  70         host1x_debug_output(o, "CBREAD %08x, CBSTAT %08x\n", cbread, cbstat);
  71
  72         show_channel_gathers(o, cdma);
  73         host1x_debug_output(o, "\n");
  74 }
  75
  76 static void host1x_debug_show_channel_fifo(struct host1x *host,
  77                                            struct host1x_channel *ch,
  78                                            struct output *o)
  79 {
  80         u32 val, rd_ptr, wr_ptr, start, end;
  81         unsigned int data_count = 0;
  82
  83         host1x_debug_output(o, "%u: fifo:\n", ch->id);
  84
  85         val = host1x_ch_readl(ch, HOST1X_CHANNEL_FIFOSTAT);
  86         host1x_debug_output(o, "FIFOSTAT %08x\n", val);
  87         if (HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(val)) {
  88                 host1x_debug_output(o, "[empty]\n");
  89                 return;
  90         }
  91
  92         host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
  93         host1x_sync_writel(host, HOST1X_SYNC_CFPEEK_CTRL_ENA_F(1) |
  94                            HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(ch->id),
  95                            HOST1X_SYNC_CFPEEK_CTRL);
  96
  97         val = host1x_sync_readl(host, HOST1X_SYNC_CFPEEK_PTRS);
  98         rd_ptr = HOST1X_SYNC_CFPEEK_PTRS_CF_RD_PTR_V(val);
  99         wr_ptr = HOST1X_SYNC_CFPEEK_PTRS_CF_WR_PTR_V(val);
 100
 101         val = host1x_sync_readl(host, HOST1X_SYNC_CF_SETUP(ch->id));
 102         start = HOST1X_SYNC_CF_SETUP_BASE_V(val);
 103         end = HOST1X_SYNC_CF_SETUP_LIMIT_V(val);
 104
 105         do {
 106                 host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
 107                 host1x_sync_writel(host, HOST1X_SYNC_CFPEEK_CTRL_ENA_F(1) |
 108                                    HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(ch->id) |
 109                                    HOST1X_SYNC_CFPEEK_CTRL_ADDR_F(rd_ptr),
 110                                    HOST1X_SYNC_CFPEEK_CTRL);
 111                 val = host1x_sync_readl(host, HOST1X_SYNC_CFPEEK_READ);
 112
 113                 if (!data_count) {
 114                         host1x_debug_output(o, "%08x: ", val);
 115                         data_count = show_channel_command(o, val, NULL);
 116                 } else {
 117                         host1x_debug_cont(o, "%08x%s", val,
 118                                           data_count > 1 ? ", " : "])\n");
 119                         data_count--;
 120                 }
 121
 122                 if (rd_ptr == end)
 123                         rd_ptr = start;
 124                 else
 125                         rd_ptr++;
 126         } while (rd_ptr != wr_ptr);
 127
 128         if (data_count)
 129                 host1x_debug_cont(o, ", ...])\n");
 130         host1x_debug_output(o, "\n");
 131
 132         host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
 133 }
 134
 135 static void host1x_debug_show_mlocks(struct host1x *host, struct output *o)
 136 {
 137         unsigned int i;
 138
 139         host1x_debug_output(o, "---- mlocks ----\n");
 140
 141         for (i = 0; i < host1x_syncpt_nb_mlocks(host); i++) {
 142                 u32 owner =
 143                         host1x_sync_readl(host, HOST1X_SYNC_MLOCK_OWNER(i));
 144                 if (HOST1X_SYNC_MLOCK_OWNER_CH_OWNS_V(owner))
 145                         host1x_debug_output(o, "%u: locked by channel %u\n",
 146                                 i, HOST1X_SYNC_MLOCK_OWNER_CHID_V(owner));
 147                 else if (HOST1X_SYNC_MLOCK_OWNER_CPU_OWNS_V(owner))
 148                         host1x_debug_output(o, "%u: locked by cpu\n", i);
 149                 else
 150                         host1x_debug_output(o, "%u: unlocked\n", i);
 151         }
 152
 153         host1x_debug_output(o, "\n");
 154 }