7 Following a GPU hang the MSM driver outputs debugging information via
8 /sys/kernel/dri/X/show or via devcoredump (/sys/class/devcoredump/dcdX/data).
9 This document describes how the output is formatted.
11 Each entry is in the form key: value. Sections headers will not have a value
12 and all the contents of a section will be indented two spaces from the header.
13 Each section might have multiple array entries the start of which is designated
20 The kernel version that generated the dump (UTS_RELEASE).
23 The module that generated the crashdump.
26 The kernel time at crash formated as seconds.microseconds.
29 Comm string for the binary that generated the fault.
32 Command line for the binary that generated the fault.
35 ID of the GPU that generated the crash formatted as
36 core.major.minor.patchlevel separated by dots.
39 The current value of RBBM_STATUS which shows what top level GPU
40 components are in use at the time of crash.
43 Section containing the contents of each ringbuffer. Each ringbuffer is
44 identified with an id number.
47 Ringbuffer ID (0 based index). Each ringbuffer in the section
48 will have its own unique id.
50 GPU address of the ringbuffer.
53 The last fence that was issued on the ringbuffer
56 The last fence retired on the ringbuffer.
59 The current read pointer (rptr) for the ringbuffer.
62 The current write pointer (wptr) for the ringbuffer.
65 Maximum size of the ringbuffer programmed in the hardware.
68 The contents of the ring encoded as ascii85. Only the used
69 portions of the ring will be printed.
72 List of buffers from the hanging submission if available.
73 Each buffer object will have a uinque iova.
76 GPU address of the buffer object.
79 Allocated size of the buffer object.
82 The contents of the buffer object encoded with ascii85. Only
83 Trailing zeros at the end of the buffer will be skipped.
86 Set of registers values. Each entry is on its own line enclosed
90 Byte offset of the register from the start of the
94 Hexadecimal value of the register.
97 (5xx only) Register values from the HLSQ aperture.
98 Same format as the register section.