cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/bios/M0205.c

/*
 * Copyright 2013 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */
#include <subdev/bios.h>
#include <subdev/bios/bit.h>
#include <subdev/bios/M0205.h>


u32 nvbios_M0205Te(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz) { struct bit_entry bit_M; u32 data = 0x00000000; if (!bit_entry(bios, 'M', &bit_M)) { if (bit_M.version == 2 && bit_M.length > 0x08) data = nvbios_rd32(bios, bit_M.offset + 0x05); if (data) { *ver = nvbios_rd08(bios, data + 0x00); switch (*ver) { case 0x10: *hdr = nvbios_rd08(bios, data + 0x01); *len = nvbios_rd08(bios, data + 0x02); *ssz = nvbios_rd08(bios, data + 0x03); *snr = nvbios_rd08(bios, data + 0x04); *cnt = nvbios_rd08(bios, data + 0x05); return data; default: break; } } } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs181100.00%3100.00%
Total181100.00%3100.00%


u32 nvbios_M0205Tp(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz, struct nvbios_M0205T *info) { u32 data = nvbios_M0205Te(bios, ver, hdr, cnt, len, snr, ssz); memset(info, 0x00, sizeof(*info)); switch (!!data * *ver) { case 0x10: info->freq = nvbios_rd16(bios, data + 0x06); break; default: break; } return data; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs105100.00%3100.00%
Total105100.00%3100.00%


u32 nvbios_M0205Ee(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) { u8 snr, ssz; u32 data = nvbios_M0205Te(bios, ver, hdr, cnt, len, &snr, &ssz); if (data && idx < *cnt) { data = data + *hdr + idx * (*len + (snr * ssz)); *hdr = *len; *cnt = snr; *len = ssz; return data; } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs109100.00%2100.00%
Total109100.00%2100.00%


u32 nvbios_M0205Ep(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_M0205E *info) { u32 data = nvbios_M0205Ee(bios, idx, ver, hdr, cnt, len); memset(info, 0x00, sizeof(*info)); switch (!!data * *ver) { case 0x10: info->type = nvbios_rd08(bios, data + 0x00) & 0x0f; return data; default: break; } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs102100.00%3100.00%
Total102100.00%3100.00%


u32 nvbios_M0205Se(struct nvkm_bios *bios, int ent, int idx, u8 *ver, u8 *hdr) { u8 cnt, len; u32 data = nvbios_M0205Ee(bios, ent, ver, hdr, &cnt, &len); if (data && idx < cnt) { data = data + *hdr + idx * len; *hdr = len; return data; } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs81100.00%2100.00%
Total81100.00%2100.00%


u32 nvbios_M0205Sp(struct nvkm_bios *bios, int ent, int idx, u8 *ver, u8 *hdr, struct nvbios_M0205S *info) { u32 data = nvbios_M0205Se(bios, ent, idx, ver, hdr); memset(info, 0x00, sizeof(*info)); switch (!!data * *ver) { case 0x10: info->data = nvbios_rd08(bios, data + 0x00); return data; default: break; } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs93100.00%3100.00%
Total93100.00%3100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs681100.00%3100.00%
Total681100.00%3100.00%
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