cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/bios/P0260.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/P0260.h>


u32 nvbios_P0260Te(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *xnr, u8 *xsz) { struct bit_entry bit_P; u32 data = 0x00000000; if (!bit_entry(bios, 'P', &bit_P)) { if (bit_P.version == 2 && bit_P.length > 0x63) data = nvbios_rd32(bios, bit_P.offset + 0x60); if (data) { *ver = nvbios_rd08(bios, data + 0); switch (*ver) { case 0x10: *hdr = nvbios_rd08(bios, data + 1); *cnt = nvbios_rd08(bios, data + 2); *len = 4; *xnr = nvbios_rd08(bios, data + 3); *xsz = 4; return data; default: break; } } } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs167100.00%3100.00%
Total167100.00%3100.00%


u32 nvbios_P0260Ee(struct nvkm_bios *bios, int idx, u8 *ver, u8 *len) { u8 hdr, cnt, xnr, xsz; u32 data = nvbios_P0260Te(bios, ver, &hdr, &cnt, len, &xnr, &xsz); if (data && idx < cnt) return data + hdr + (idx * *len); return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs77100.00%2100.00%
Total77100.00%2100.00%


u32 nvbios_P0260Ep(struct nvkm_bios *bios, int idx, u8 *ver, u8 *len, struct nvbios_P0260E *info) { u32 data = nvbios_P0260Ee(bios, idx, ver, len); memset(info, 0x00, sizeof(*info)); switch (!!data * *ver) { case 0x10: info->data = nvbios_rd32(bios, data); return data; default: break; } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs86100.00%3100.00%
Total86100.00%3100.00%


u32 nvbios_P0260Xe(struct nvkm_bios *bios, int idx, u8 *ver, u8 *xsz) { u8 hdr, cnt, len, xnr; u32 data = nvbios_P0260Te(bios, ver, &hdr, &cnt, &len, &xnr, xsz); if (data && idx < xnr) return data + hdr + (cnt * len) + (idx * *xsz); return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs83100.00%2100.00%
Total83100.00%2100.00%


u32 nvbios_P0260Xp(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr, struct nvbios_P0260X *info) { u32 data = nvbios_P0260Xe(bios, idx, ver, hdr); memset(info, 0x00, sizeof(*info)); switch (!!data * *ver) { case 0x10: info->data = nvbios_rd32(bios, data); return data; default: break; } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs86100.00%3100.00%
Total86100.00%3100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs509100.00%3100.00%
Total509100.00%3100.00%
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