83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
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/*
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* Copyright 2022 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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#include "priv.h"
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static void
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gp102_flcn_pio_emem_rd(struct nvkm_falcon *falcon, u8 port, const u8 *img, int len)
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{
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while (len >= 4) {
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*(u32 *)img = nvkm_falcon_rd32(falcon, 0xac4 + (port * 8));
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img += 4;
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len -= 4;
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}
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}
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static void
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gp102_flcn_pio_emem_rd_init(struct nvkm_falcon *falcon, u8 port, u32 dmem_base)
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{
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nvkm_falcon_wr32(falcon, 0xac0 + (port * 8), BIT(25) | dmem_base);
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}
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static void
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gp102_flcn_pio_emem_wr(struct nvkm_falcon *falcon, u8 port, const u8 *img, int len, u16 tag)
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{
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while (len >= 4) {
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nvkm_falcon_wr32(falcon, 0xac4 + (port * 8), *(u32 *)img);
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img += 4;
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len -= 4;
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}
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}
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static void
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gp102_flcn_pio_emem_wr_init(struct nvkm_falcon *falcon, u8 port, bool sec, u32 emem_base)
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{
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nvkm_falcon_wr32(falcon, 0xac0 + (port * 8), BIT(24) | emem_base);
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}
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const struct nvkm_falcon_func_pio
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gp102_flcn_emem_pio = {
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.min = 4,
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.max = 0x100,
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.wr_init = gp102_flcn_pio_emem_wr_init,
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.wr = gp102_flcn_pio_emem_wr,
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.rd_init = gp102_flcn_pio_emem_rd_init,
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.rd = gp102_flcn_pio_emem_rd,
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};
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int
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gp102_flcn_reset_eng(struct nvkm_falcon *falcon)
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{
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int ret;
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if (falcon->func->reset_prep) {
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ret = falcon->func->reset_prep(falcon);
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if (ret)
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return ret;
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}
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nvkm_falcon_mask(falcon, 0x3c0, 0x00000001, 0x00000001);
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udelay(10);
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nvkm_falcon_mask(falcon, 0x3c0, 0x00000001, 0x00000000);
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return falcon->func->reset_wait_mem_scrubbing(falcon);
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}
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