194d68dd05
G92's seem to require some additional bit of initialization before the BSP engine can work. It feels like clocks are not set up for the underlying VLD engine, which means that all commands submitted to the xtensa chip end up hanging. VP seems to work fine though. This still allows people to force-enable the bsp engine if they want to play around with it, but makes it harder for the card to hang by default. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs, Ilia Mirkin
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*/
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#include <engine/bsp.h>
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#include <nvif/class.h>
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static const struct nvkm_xtensa_func
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g84_bsp = {
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.fifo_val = 0x1111,
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.unkd28 = 0x90044,
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.sclass = {
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{ -1, -1, NV74_BSP },
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{}
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}
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};
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int
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g84_bsp_new(struct nvkm_device *device, int index, struct nvkm_engine **pengine)
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{
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return nvkm_xtensa_new_(&g84_bsp, device, index,
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device->chipset != 0x92, 0x103000, pengine);
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}
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