diff options
| -rw-r--r-- | drm/Kbuild | 1 | ||||
| l--------- | drm/core/subdev/fb/gddr3.c | 1 | ||||
| -rw-r--r-- | nvkm/subdev/fb/Makefile.am | 1 | ||||
| -rw-r--r-- | nvkm/subdev/fb/gddr3.c | 117 | ||||
| -rw-r--r-- | nvkm/subdev/fb/priv.h | 1 |
5 files changed, 121 insertions, 0 deletions
diff --git a/drm/Kbuild b/drm/Kbuild index d01f4ae6f..e72b488c7 100644 --- a/drm/Kbuild +++ b/drm/Kbuild @@ -140,6 +140,7 @@ nouveau-y += core/subdev/fb/ramgk20a.o nouveau-y += core/subdev/fb/ramgm107.o nouveau-y += core/subdev/fb/sddr2.o nouveau-y += core/subdev/fb/sddr3.o +nouveau-y += core/subdev/fb/gddr3.o nouveau-y += core/subdev/fb/gddr5.o nouveau-y += core/subdev/fuse/base.o nouveau-y += core/subdev/fuse/g80.o diff --git a/drm/core/subdev/fb/gddr3.c b/drm/core/subdev/fb/gddr3.c new file mode 120000 index 000000000..be4f2b1df --- /dev/null +++ b/drm/core/subdev/fb/gddr3.c @@ -0,0 +1 @@ +../../../../nvkm/subdev/fb/gddr3.c
\ No newline at end of file diff --git a/nvkm/subdev/fb/Makefile.am b/nvkm/subdev/fb/Makefile.am index 27e1e6e3f..3869fac7c 100644 --- a/nvkm/subdev/fb/Makefile.am +++ b/nvkm/subdev/fb/Makefile.am @@ -29,6 +29,7 @@ libfb_la_SOURCES = base.c \ ramgm107.c \ sddr2.c \ sddr3.c \ + gddr3.c \ gddr5.c diff --git a/nvkm/subdev/fb/gddr3.c b/nvkm/subdev/fb/gddr3.c new file mode 100644 index 000000000..d85a25d02 --- /dev/null +++ b/nvkm/subdev/fb/gddr3.c @@ -0,0 +1,117 @@ +/* + * 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; +} diff --git a/nvkm/subdev/fb/priv.h b/nvkm/subdev/fb/priv.h index 60322e906..283863f7a 100644 --- a/nvkm/subdev/fb/priv.h +++ b/nvkm/subdev/fb/priv.h @@ -37,6 +37,7 @@ extern struct nouveau_oclass gm107_ram_oclass; int nouveau_sddr2_calc(struct nouveau_ram *ram); int nouveau_sddr3_calc(struct nouveau_ram *ram); +int nouveau_gddr3_calc(struct nouveau_ram *ram); int nouveau_gddr5_calc(struct nouveau_ram *ram, bool nuts); #define nouveau_fb_create(p,e,c,d) \ |