drm/amdkfd: Fix spurious debug exception on gfx10

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s_barrier triggers a debug exception when issued with PRIV=1,
DEBUG_EN=1. This causes spurious notifications to rocm-gdb.

Clear MODE before issuing s_barrier and restore MODE afterwards
in the context restore handler.

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Tested-by: Laurent Morichetti <laurent.morichetti@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Jay Cornwall 2020-07-24 16:58:48 -07:00 • committed by Alex Deucher

parent c342d7c579

commit b60646a20c

2 changed files with 93 additions and 88 deletions

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174

drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler.h

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7

drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm

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