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f7275d391e
Enable retry fault interrupts when initializing the GFXHUB system aperture registers. Needs to be done for each GFXHUB version, because none of them actually enabled this interrupt. This bit gates all retry fault functionality on Navi GPUs. According to a mailing list conversation with AMD engineers, this register field should have been initialized to 1 according to hardware documentation. But it has been confirmed that it is in fact initialized to 0 by default. I have personally confirmed on both Navi 31 and Navi 48 that the GPU does NOT send any retry fault interrupts without enabling this bit. Initially I wanted to program this field according to the gmc.noretry flag in the previous versions of this patch, but I was asked to just program it always to 1 instead. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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| trace | ||
| vga | ||
| buddy.c | ||
| Kconfig | ||
| Makefile | ||