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https://github.com/tiagovignatti/intel-gpu-tools.git
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afeb43190e
Show the decoded HEAD value, as well as print the calculated head offset per ringbuffer. This will be superceded in the next commit, but that patch is way more complicated than this one (read: error prone), so I want this here. Example: ringbuffer (blitter ring) at 0x00044000; HEAD points to: 0x00044950 v2: Actually make it work for all rings. Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
544 lines
14 KiB
C
544 lines
14 KiB
C
/*
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* Copyright © 2007 Intel Corporation
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* Copyright © 2009 Intel Corporation
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* Copyright © 2010 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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* Carl Worth <cworth@cworth.org>
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* Chris Wilson <chris@chris-wilson.co.uk>
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*
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*/
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/** @file intel_decode.c
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* This file contains code to print out batchbuffer contents in a
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* human-readable format.
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*
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* The current version only supports i915 packets, and only pretty-prints a
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* subset of them. The intention is for it to make just a best attempt to
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* decode, but never crash in the process.
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <unistd.h>
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#include <inttypes.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <assert.h>
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#include <intel_bufmgr.h>
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#include "intel_chipset.h"
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#include "intel_gpu_tools.h"
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#include "instdone.h"
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static uint32_t
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print_head(unsigned int reg)
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{
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printf(" head = 0x%08x, wraps = %d\n", reg & (0x7ffff<<2), reg >> 21);
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return reg & (0x7ffff<<2);
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}
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static void
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print_instdone(uint32_t devid, unsigned int instdone, unsigned int instdone1)
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{
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int i;
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static int once;
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if (!once) {
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init_instdone_definitions(devid);
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once = 1;
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}
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for (i = 0; i < num_instdone_bits; i++) {
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int busy = 0;
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if (instdone_bits[i].reg == INST_DONE_1) {
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if (!(instdone1 & instdone_bits[i].bit))
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busy = 1;
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} else {
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if (!(instdone & instdone_bits[i].bit))
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busy = 1;
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}
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if (busy)
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printf(" busy: %s\n", instdone_bits[i].name);
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}
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}
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static void
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print_i830_pgtbl_err(unsigned int reg)
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{
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const char *str;
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switch((reg >> 3) & 0xf) {
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case 0x1: str = "Overlay TLB"; break;
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case 0x2: str = "Display A TLB"; break;
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case 0x3: str = "Host TLB"; break;
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case 0x4: str = "Render TLB"; break;
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case 0x5: str = "Display C TLB"; break;
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case 0x6: str = "Mapping TLB"; break;
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case 0x7: str = "Command Stream TLB"; break;
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case 0x8: str = "Vertex Buffer TLB"; break;
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case 0x9: str = "Display B TLB"; break;
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case 0xa: str = "Reserved System Memory"; break;
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case 0xb: str = "Compressor TLB"; break;
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case 0xc: str = "Binner TLB"; break;
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default: str = "unknown"; break;
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}
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if (str)
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printf(" source = %s\n", str);
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switch(reg & 0x7) {
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case 0x0: str = "Invalid GTT"; break;
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case 0x1: str = "Invalid GTT PTE"; break;
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case 0x2: str = "Invalid Memory"; break;
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case 0x3: str = "Invalid TLB miss"; break;
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case 0x4: str = "Invalid PTE data"; break;
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case 0x5: str = "Invalid LocalMemory not present"; break;
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case 0x6: str = "Invalid Tiling"; break;
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case 0x7: str = "Host to CAM"; break;
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}
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printf(" error = %s\n", str);
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}
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static void
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print_i915_pgtbl_err(unsigned int reg)
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{
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if (reg & (1 << 29))
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printf(" Cursor A: Invalid GTT PTE\n");
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if (reg & (1 << 28))
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printf(" Cursor B: Invalid GTT PTE\n");
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if (reg & (1 << 27))
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printf(" MT: Invalid tiling\n");
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if (reg & (1 << 26))
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printf(" MT: Invalid GTT PTE\n");
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if (reg & (1 << 25))
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printf(" LC: Invalid tiling\n");
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if (reg & (1 << 24))
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printf(" LC: Invalid GTT PTE\n");
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if (reg & (1 << 23))
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printf(" BIN VertexData: Invalid GTT PTE\n");
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if (reg & (1 << 22))
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printf(" BIN Instruction: Invalid GTT PTE\n");
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if (reg & (1 << 21))
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printf(" CS VertexData: Invalid GTT PTE\n");
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if (reg & (1 << 20))
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printf(" CS Instruction: Invalid GTT PTE\n");
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if (reg & (1 << 19))
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printf(" CS: Invalid GTT\n");
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if (reg & (1 << 18))
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printf(" Overlay: Invalid tiling\n");
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if (reg & (1 << 16))
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printf(" Overlay: Invalid GTT PTE\n");
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if (reg & (1 << 14))
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printf(" Display C: Invalid tiling\n");
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if (reg & (1 << 12))
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printf(" Display C: Invalid GTT PTE\n");
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if (reg & (1 << 10))
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printf(" Display B: Invalid tiling\n");
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if (reg & (1 << 8))
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printf(" Display B: Invalid GTT PTE\n");
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if (reg & (1 << 6))
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printf(" Display A: Invalid tiling\n");
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if (reg & (1 << 4))
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printf(" Display A: Invalid GTT PTE\n");
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if (reg & (1 << 1))
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printf(" Host Invalid PTE data\n");
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if (reg & (1 << 0))
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printf(" Host Invalid GTT PTE\n");
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}
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static void
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print_i965_pgtbl_err(unsigned int reg)
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{
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if (reg & (1 << 26))
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printf(" Invalid Sampler Cache GTT entry\n");
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if (reg & (1 << 24))
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printf(" Invalid Render Cache GTT entry\n");
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if (reg & (1 << 23))
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printf(" Invalid Instruction/State Cache GTT entry\n");
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if (reg & (1 << 22))
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printf(" There is no ROC, this cannot occur!\n");
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if (reg & (1 << 21))
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printf(" Invalid GTT entry during Vertex Fetch\n");
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if (reg & (1 << 20))
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printf(" Invalid GTT entry during Command Fetch\n");
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if (reg & (1 << 19))
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printf(" Invalid GTT entry during CS\n");
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if (reg & (1 << 18))
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printf(" Invalid GTT entry during Cursor Fetch\n");
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if (reg & (1 << 17))
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printf(" Invalid GTT entry during Overlay Fetch\n");
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if (reg & (1 << 8))
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printf(" Invalid GTT entry during Display B Fetch\n");
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if (reg & (1 << 4))
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printf(" Invalid GTT entry during Display A Fetch\n");
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if (reg & (1 << 1))
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printf(" Valid PTE references illegal memory\n");
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if (reg & (1 << 0))
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printf(" Invalid GTT entry during fetch for host\n");
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}
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static void
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print_pgtbl_err(unsigned int reg, unsigned int devid)
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{
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if (IS_965(devid)) {
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return print_i965_pgtbl_err(reg);
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} else if (IS_GEN3(devid)) {
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return print_i915_pgtbl_err(reg);
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} else {
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return print_i830_pgtbl_err(reg);
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}
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}
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static void
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print_snb_fence(unsigned int devid, uint64_t fence)
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{
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printf(" %svalid, %c-tiled, pitch: %i, start: 0x%08x, size: %u\n",
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fence & 1 ? "" : "in",
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fence & (1<<1) ? 'y' : 'x',
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(int)(((fence>>32)&0xfff)+1)*128,
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(uint32_t)fence & 0xfffff000,
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(uint32_t)(((fence>>32)&0xfffff000) - (fence&0xfffff000) + 4096));
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}
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static void
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print_i965_fence(unsigned int devid, uint64_t fence)
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{
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printf(" %svalid, %c-tiled, pitch: %i, start: 0x%08x, size: %u\n",
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fence & 1 ? "" : "in",
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fence & (1<<1) ? 'y' : 'x',
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(int)(((fence>>2)&0x1ff)+1)*128,
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(uint32_t)fence & 0xfffff000,
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(uint32_t)(((fence>>32)&0xfffff000) - (fence&0xfffff000) + 4096));
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}
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static void
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print_i915_fence(unsigned int devid, uint64_t fence)
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{
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unsigned tile_width;
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if ((fence & 12) && !IS_915(devid))
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tile_width = 128;
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else
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tile_width = 512;
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printf(" %svalid, %c-tiled, pitch: %i, start: 0x%08x, size: %i\n",
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fence & 1 ? "" : "in",
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fence & 12 ? 'y' : 'x',
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(1<<((fence>>4)&0xf))*tile_width,
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(uint32_t)fence & 0xff00000,
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1<<(20 + ((fence>>8)&0xf)));
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}
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static void
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print_i830_fence(unsigned int devid, uint64_t fence)
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{
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printf(" %svalid, %c-tiled, pitch: %i, start: 0x%08x, size: %i\n",
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fence & 1 ? "" : "in",
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fence & 12 ? 'y' : 'x',
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(1<<((fence>>4)&0xf))*128,
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(uint32_t)fence & 0x7f80000,
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1<<(19 + ((fence>>8)&0xf)));
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}
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static void
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print_fence(unsigned int devid, uint64_t fence)
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{
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if (IS_GEN6(devid) || IS_GEN7(devid)) {
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return print_snb_fence(devid, fence);
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} else if (IS_GEN4(devid) || IS_GEN5(devid)) {
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return print_i965_fence(devid, fence);
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} else if (IS_GEN3(devid)) {
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return print_i915_fence(devid, fence);
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} else {
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return print_i830_fence(devid, fence);
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}
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}
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#define MAX_RINGS 10 /* I really hope this never... */
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uint32_t head[MAX_RINGS];
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int head_ndx = 0;
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int num_rings = -1;
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static void print_batch(int is_batch, const char *ring_name, uint32_t gtt_offset)
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{
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const char *buffer_type[2] = { "ringbuffer", "batchbuffer" };
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if (is_batch) {
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printf("%s (%s) at 0x%08x\n", buffer_type[is_batch], ring_name, gtt_offset);
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} else {
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printf("%s (%s) at 0x%08x; HEAD points to: 0x%08x\n", buffer_type[is_batch], ring_name, gtt_offset, head[head_ndx++ % num_rings] + gtt_offset);
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}
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}
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static void
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read_data_file(FILE *file)
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{
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struct drm_intel_decode *decode_ctx = NULL;
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uint32_t devid = PCI_CHIP_I855_GM;
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uint32_t *data = NULL;
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long long unsigned fence;
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int data_size = 0, count = 0, line_number = 0, matched;
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char *line = NULL;
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size_t line_size;
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uint32_t offset, value;
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uint32_t gtt_offset = 0, new_gtt_offset;
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char *ring_name = NULL;
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int is_batch = 1;
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while (getline(&line, &line_size, file) > 0) {
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char *dashes;
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line_number++;
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dashes = strstr(line, "---");
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if (dashes) {
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char *new_ring_name = malloc(dashes - line);
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strncpy(new_ring_name, line, dashes - line);
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new_ring_name[dashes - line - 1] = '\0';
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if (num_rings == -1)
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num_rings = head_ndx;
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matched = sscanf(dashes, "--- gtt_offset = 0x%08x\n",
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&new_gtt_offset);
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if (matched == 1) {
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if (count) {
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print_batch(is_batch, ring_name, gtt_offset);
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drm_intel_decode_set_batch_pointer(decode_ctx,
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data, gtt_offset,
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count);
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drm_intel_decode(decode_ctx);
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count = 0;
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}
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gtt_offset = new_gtt_offset;
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is_batch = 1;
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free(ring_name);
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ring_name = new_ring_name;
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continue;
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}
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matched = sscanf(dashes, "--- ringbuffer = 0x%08x\n",
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&new_gtt_offset);
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if (matched == 1) {
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if (count) {
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print_batch(is_batch, ring_name, gtt_offset);
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drm_intel_decode_set_batch_pointer(decode_ctx,
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data, gtt_offset,
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count);
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drm_intel_decode(decode_ctx);
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count = 0;
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}
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gtt_offset = new_gtt_offset;
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is_batch = 0;
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free(ring_name);
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ring_name = new_ring_name;
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continue;
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}
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}
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matched = sscanf(line, "%08x : %08x", &offset, &value);
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if (matched != 2) {
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unsigned int reg;
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/* display reg section is after the ringbuffers, don't mix them */
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if (count) {
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print_batch(is_batch, ring_name, gtt_offset);
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drm_intel_decode_set_batch_pointer(decode_ctx,
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data, gtt_offset,
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count);
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drm_intel_decode(decode_ctx);
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count = 0;
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}
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printf("%s", line);
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matched = sscanf(line, "PCI ID: 0x%04x\n", ®);
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if (matched == 0)
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matched = sscanf(line, " PCI ID: 0x%04x\n", ®);
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if (matched == 0) {
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const char *pci_id_start = strstr(line, "PCI ID");
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if (pci_id_start)
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matched = sscanf(pci_id_start, "PCI ID: 0x%04x\n", ®);
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}
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if (matched == 1) {
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devid = reg;
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printf("Detected GEN%i chipset\n",
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intel_gen(devid));
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decode_ctx = drm_intel_decode_context_alloc(devid);
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}
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matched = sscanf(line, " HEAD: 0x%08x\n", ®);
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if (matched == 1) {
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head[head_ndx++] = print_head(reg);
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}
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matched = sscanf(line, " ACTHD: 0x%08x\n", ®);
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if (matched == 1)
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drm_intel_decode_set_head_tail(decode_ctx, reg, 0xffffffff);
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matched = sscanf(line, " PGTBL_ER: 0x%08x\n", ®);
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if (matched == 1 && reg)
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print_pgtbl_err(reg, devid);
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matched = sscanf(line, " INSTDONE: 0x%08x\n", ®);
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if (matched == 1)
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print_instdone(devid, reg, -1);
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matched = sscanf(line, " INSTDONE1: 0x%08x\n", ®);
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if (matched == 1)
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print_instdone(devid, -1, reg);
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matched = sscanf(line, " fence[%i] = %Lx\n", ®, &fence);
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if (matched == 2)
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print_fence(devid, fence);
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continue;
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}
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count++;
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if (count > data_size) {
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data_size = data_size ? data_size * 2 : 1024;
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data = realloc(data, data_size * sizeof (uint32_t));
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if (data == NULL) {
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fprintf(stderr, "Out of memory.\n");
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exit(1);
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}
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}
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data[count-1] = value;
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}
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if (count) {
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print_batch(is_batch, ring_name, gtt_offset);
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drm_intel_decode_set_batch_pointer(decode_ctx,
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data, gtt_offset,
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count);
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drm_intel_decode(decode_ctx);
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}
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free(data);
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free(line);
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free(ring_name);
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}
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int
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main(int argc, char *argv[])
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{
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FILE *file;
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const char *path;
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char *filename = NULL;
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struct stat st;
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int error;
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if (argc > 2) {
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fprintf(stderr,
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"intel_gpu_decode: Parse an Intel GPU i915_error_state\n"
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"Usage:\n"
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"\t%s [<file>]\n"
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"\n"
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"With no arguments, debugfs-dri-directory is probed for in "
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"/debug and \n"
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"/sys/kernel/debug. Otherwise, it may be "
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"specified. If a file is given,\n"
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"it is parsed as an GPU dump in the format of "
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"/debug/dri/0/i915_error_state.\n",
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argv[0]);
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return 1;
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}
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if (argc == 1) {
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if (isatty(0)) {
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path = "/debug/dri";
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error = stat(path, &st);
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if (error != 0) {
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path = "/sys/kernel/debug/dri";
|
|
error = stat(path, &st);
|
|
if (error != 0) {
|
|
errx(1,
|
|
"Couldn't find i915 debugfs directory.\n\n"
|
|
"Is debugfs mounted? You might try mounting it with a command such as:\n\n"
|
|
"\tsudo mount -t debugfs debugfs /sys/kernel/debug\n");
|
|
}
|
|
}
|
|
} else {
|
|
read_data_file(stdin);
|
|
exit(0);
|
|
}
|
|
} else {
|
|
path = argv[1];
|
|
error = stat(path, &st);
|
|
if (error != 0) {
|
|
fprintf(stderr, "Error opening %s: %s\n",
|
|
path, strerror(errno));
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (S_ISDIR(st.st_mode)) {
|
|
int ret;
|
|
|
|
ret = asprintf(&filename, "%s/i915_error_state", path);
|
|
assert(ret > 0);
|
|
file = fopen(filename, "r");
|
|
if (!file) {
|
|
int minor;
|
|
for (minor = 0; minor < 64; minor++) {
|
|
free(filename);
|
|
ret = asprintf(&filename, "%s/%d/i915_error_state", path, minor);
|
|
assert(ret > 0);
|
|
|
|
file = fopen(filename, "r");
|
|
if (file)
|
|
break;
|
|
}
|
|
}
|
|
if (!file) {
|
|
fprintf(stderr, "Failed to find i915_error_state beneath %s\n",
|
|
path);
|
|
exit (1);
|
|
}
|
|
} else {
|
|
file = fopen(path, "r");
|
|
if (!file) {
|
|
fprintf(stderr, "Failed to open %s: %s\n",
|
|
path, strerror(errno));
|
|
exit (1);
|
|
}
|
|
}
|
|
|
|
read_data_file(file);
|
|
fclose(file);
|
|
|
|
if (filename != path)
|
|
free(filename);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* vim: set ts=8 sw=8 tw=0 noet :*/
|