drm/amdkfd: Fix gfx8 MEM_VIOL exception handler

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When MEM_VIOL is asserted the context save handler rewinds the
program counter. This is incorrect for any source of the exception.
MEM_VIOL may be raised in normal operation by out-of-bounds access
to LDS or GDS and does not require special handling.

Remove PC adjustment when MEM_VIOL has been raised.

Signed-off-by: Jay Cornwall <Jay.Cornwall@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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Jay Cornwall 2018-11-14 22:23:25 -06:00 • committed by Alex Deucher

parent f756e6319c

commit 2db2f25959

2 changed files with 2 additions and 20 deletions

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9

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

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13

drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx8.asm

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