diff options
Diffstat (limited to 'nvkm/subdev/fb/gddr3.c')
-rw-r--r-- | nvkm/subdev/fb/gddr3.c | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/nvkm/subdev/fb/gddr3.c b/nvkm/subdev/fb/gddr3.c deleted file mode 100644 index d85a25d02..000000000 --- a/nvkm/subdev/fb/gddr3.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - * 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 <bskeggs@redhat.com> - * Roy Spliet <rspliet@eclipso.eu> - */ - -#include <subdev/bios.h> -#include "priv.h" - -struct ramxlat { - int id; - u8 enc; -}; - -static inline int -ramxlat(const struct ramxlat *xlat, int id) -{ - while (xlat->id >= 0) { - if (xlat->id == id) - return xlat->enc; - xlat++; - } - return -EINVAL; -} - -static const struct ramxlat -ramgddr3_cl_lo[] = { - { 7, 7 }, { 8, 0 }, { 9, 1 }, { 10, 2 }, { 11, 3 }, - /* the below are mentioned in some, but not all, gddr3 docs */ - { 12, 4 }, { 13, 5 }, { 14, 6 }, - /* XXX: Per Samsung docs, are these used? They overlap with Qimonda */ - /* { 4, 4 }, { 5, 5 }, { 6, 6 }, { 12, 8 }, { 13, 9 }, { 14, 10 }, - * { 15, 11 }, */ - { -1 } -}; - -static const struct ramxlat -ramgddr3_cl_hi[] = { - { 10, 2 }, { 11, 3 }, { 12, 4 }, { 13, 5 }, { 14, 6 }, { 15, 7 }, - { 16, 0 }, { 17, 1 }, - { -1 } -}; - -static const struct ramxlat -ramgddr3_wr_lo[] = { - { 5, 2 }, { 7, 4 }, { 8, 5 }, { 9, 6 }, { 10, 7 }, - { 11, 0 }, - /* the below are mentioned in some, but not all, gddr3 docs */ - { 4, 1 }, { 6, 3 }, { 12, 1 }, { 13 , 2 }, - { -1 } -}; - -int -nouveau_gddr3_calc(struct nouveau_ram *ram) -{ - int CL, WR, CWL, DLL = 0, ODT = 0, hi; - - switch (ram->next->bios.timing_ver) { - case 0x10: - CWL = ram->next->bios.timing_10_CWL; - CL = ram->next->bios.timing_10_CL; - WR = ram->next->bios.timing_10_WR; - DLL = !ram->next->bios.ramcfg_10_DLLoff; - ODT = ram->next->bios.timing_10_ODT; - break; - case 0x20: - CWL = (ram->next->bios.timing[1] & 0x00000f80) >> 7; - CL = (ram->next->bios.timing[1] & 0x0000001f) >> 0; - WR = (ram->next->bios.timing[2] & 0x007f0000) >> 16; - /* XXX: Get these values from the VBIOS instead */ - DLL = !(ram->mr[1] & 0x1); - ODT = (ram->mr[1] & 0x004) >> 2 | - (ram->mr[1] & 0x040) >> 5 | - (ram->mr[1] & 0x200) >> 7; - break; - default: - return -ENOSYS; - } - - hi = ram->mr[2] & 0x1; - CL = ramxlat(hi ? ramgddr3_cl_hi : ramgddr3_cl_lo, CL); - WR = ramxlat(ramgddr3_wr_lo, WR); - if (CL < 0 || CWL < 1 || CWL > 7 || WR < 0) - return -EINVAL; - - ram->mr[0] &= ~0xf74; - ram->mr[0] |= (CWL & 0x07) << 9; - ram->mr[0] |= (CL & 0x07) << 4; - ram->mr[0] |= (CL & 0x08) >> 1; - - ram->mr[1] &= ~0x3fc; - ram->mr[1] |= (ODT & 0x03) << 2; - ram->mr[1] |= (ODT & 0x03) << 8; - ram->mr[1] |= (WR & 0x03) << 4; - ram->mr[1] |= (WR & 0x04) << 5; - ram->mr[1] |= !DLL << 6; - return 0; -} |