1 /* 2 * Copyright (C) 2010 Google, Inc. 3 * Author: Erik Gilling <konkers@android.com> 4 * 5 * Copyright (C) 2011-2017 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 offset, class; 30 u32 ch_stat; 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 offset = host1x_ch_readl(ch, HOST1X_CHANNEL_CMDP_OFFSET); 36 class = host1x_ch_readl(ch, HOST1X_CHANNEL_CMDP_CLASS); 37 ch_stat = host1x_ch_readl(ch, HOST1X_CHANNEL_CHANNELSTAT); 38 39 host1x_debug_output(o, "%u-%s: ", ch->id, dev_name(ch->dev)); 40 41 if (dmactrl & HOST1X_CHANNEL_DMACTRL_DMASTOP || 42 !ch->cdma.push_buffer.mapped) { 43 host1x_debug_output(o, "inactive\n\n"); 44 return; 45 } 46 47 if (class == HOST1X_CLASS_HOST1X && offset == HOST1X_UCLASS_WAIT_SYNCPT) 48 host1x_debug_output(o, "waiting on syncpt\n"); 49 else 50 host1x_debug_output(o, "active class %02x, offset %04x\n", 51 class, offset); 52 53 host1x_debug_output(o, "DMAPUT %08x, DMAGET %08x, DMACTL %08x\n", 54 dmaput, dmaget, dmactrl); 55 host1x_debug_output(o, "CHANNELSTAT %02x\n", ch_stat); 56 57 show_channel_gathers(o, cdma); 58 host1x_debug_output(o, "\n"); 59 } 60 61 static void host1x_debug_show_channel_fifo(struct host1x *host, 62 struct host1x_channel *ch, 63 struct output *o) 64 { 65 u32 val, rd_ptr, wr_ptr, start, end; 66 u32 payload = INVALID_PAYLOAD; 67 unsigned int data_count = 0; 68 69 host1x_debug_output(o, "%u: fifo:\n", ch->id); 70 71 val = host1x_ch_readl(ch, HOST1X_CHANNEL_CMDFIFO_STAT); 72 host1x_debug_output(o, "CMDFIFO_STAT %08x\n", val); 73 if (val & HOST1X_CHANNEL_CMDFIFO_STAT_EMPTY) { 74 host1x_debug_output(o, "[empty]\n"); 75 return; 76 } 77 78 val = host1x_ch_readl(ch, HOST1X_CHANNEL_CMDFIFO_RDATA); 79 host1x_debug_output(o, "CMDFIFO_RDATA %08x\n", val); 80 81 /* Peek pointer values are invalid during SLCG, so disable it */ 82 host1x_hypervisor_writel(host, 0x1, HOST1X_HV_ICG_EN_OVERRIDE); 83 84 val = 0; 85 val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_ENABLE; 86 val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_CHANNEL(ch->id); 87 host1x_hypervisor_writel(host, val, HOST1X_HV_CMDFIFO_PEEK_CTRL); 88 89 val = host1x_hypervisor_readl(host, HOST1X_HV_CMDFIFO_PEEK_PTRS); 90 rd_ptr = HOST1X_HV_CMDFIFO_PEEK_PTRS_RD_PTR_V(val); 91 wr_ptr = HOST1X_HV_CMDFIFO_PEEK_PTRS_WR_PTR_V(val); 92 93 val = host1x_hypervisor_readl(host, HOST1X_HV_CMDFIFO_SETUP(ch->id)); 94 start = HOST1X_HV_CMDFIFO_SETUP_BASE_V(val); 95 end = HOST1X_HV_CMDFIFO_SETUP_LIMIT_V(val); 96 97 do { 98 val = 0; 99 val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_ENABLE; 100 val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_CHANNEL(ch->id); 101 val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_ADDR(rd_ptr); 102 host1x_hypervisor_writel(host, val, 103 HOST1X_HV_CMDFIFO_PEEK_CTRL); 104 105 val = host1x_hypervisor_readl(host, 106 HOST1X_HV_CMDFIFO_PEEK_READ); 107 108 if (!data_count) { 109 host1x_debug_output(o, "%03x 0x%08x: ", 110 rd_ptr - start, val); 111 data_count = show_channel_command(o, val, &payload); 112 } else { 113 host1x_debug_cont(o, "%08x%s", val, 114 data_count > 1 ? ", " : "])\n"); 115 data_count--; 116 } 117 118 if (rd_ptr == end) 119 rd_ptr = start; 120 else 121 rd_ptr++; 122 } while (rd_ptr != wr_ptr); 123 124 if (data_count) 125 host1x_debug_cont(o, ", ...])\n"); 126 host1x_debug_output(o, "\n"); 127 128 host1x_hypervisor_writel(host, 0x0, HOST1X_HV_CMDFIFO_PEEK_CTRL); 129 host1x_hypervisor_writel(host, 0x0, HOST1X_HV_ICG_EN_OVERRIDE); 130 } 131 132 static void host1x_debug_show_mlocks(struct host1x *host, struct output *o) 133 { 134 /* TODO */ 135 } 136