gputool: a tool for debugging AMD GPUs

[Andres Rodriguez]

Hey Everyone,

I started a small project called gputool to help me debug issues on AMD 
platforms. I think it may be useful to other driver devs, so I've made 
it available on github:

https://github.com/lostgoat/gputool

Mainly I wanted something that could read and decode registers, so that 
is what is currently supported.

Example operation:

|gputool> read CB_HW_CONTROL CB_HW_CONTROL: 0x7208 FORCE_NEEDS_DST: 0x0 
DISABLE_BLEND_OPT_WHEN_DISABLED_SRCALPHA_IS_USED: 0x0 
DISABLE_BLEND_OPT_DISCARD_PIXEL: 0x0 DISABLE_BLEND_OPT_DONT_RD_DST: 0x0 
PRIORITIZE_FC_EVICT_OVER_FOP_RD_ON_BANK_CONFLICT: 0x0 
DISABLE_FULL_WRITE_MASK: 0x0 DISABLE_BLEND_OPT_RESULT_EQ_DEST: 0x0 
DISABLE_INTNORM_LE11BPC_CLAMPING: 0x0 
DISABLE_PIXEL_IN_QUAD_FIX_FOR_LINEAR_SURFACE: 0x0 
ALLOW_MRT_WITH_DUAL_SOURCE: 0x0 DISABLE_CC_IB_SERIALIZER_STATE_OPT: 0x0 
PRIORITIZE_FC_WR_OVER_FC_RD_ON_CMASK_CONFLICT: 0x0 FORCE_ALWAYS_TOGGLE: 
0x0 FC_CACHE_EVICT_POINT: 0x8 CC_CACHE_EVICT_POINT: 0x7 
DISABLE_RESOLVE_OPT_FOR_SINGLE_FRAG: 0x0 DISABLE_BLEND_OPT_BYPASS: 0x0 
CM_CACHE_EVICT_POINT: 0x8 ||gputool> read PA_SC_RASTER_CONFIG PA_SC_RASTER_CONFIG: 0x16000012 
RB_XSEL: 0x0 SC_YSEL: 0x0 SC_MAP: 0x0 SC_XSEL: 0x0 SE_YSEL: 0x1 SE_XSEL: 
0x1 PKR_YSEL: 0x0 RB_YSEL: 0x0 PKR_XSEL: 0x0 RB_XSEL2: 0x1 PKR_XSEL2: 
0x0 SE_MAP: 0x2 RB_MAP_PKR0: 0x2 RB_MAP_PKR1: 0x0 PKR_MAP: 0x0|

One of the other things I'm considering adding is register write 
support, and also dumping textures from vram for inspection.

Regards,
Andres


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