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| author | Ben Skeggs <bskeggs@redhat.com> | 2014-11-04 02:06:25 (GMT) |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2014-12-02 05:44:05 (GMT) |
| commit | 4766ec53945f14f134fc51de782b362a51351cb1 (patch) | |
| tree | 8fdb9f9b33be4d006e8c18cffcbb5f3d63b7e786 /drivers/gpu/drm/nouveau/core/include | |
| parent | ddbb55ab04db3edbc2d0910c5060c025a9ae4425 (diff) | |
| download | linux-4766ec53945f14f134fc51de782b362a51351cb1.tar.xz | |
drm/nouveau/bios: add parsing of BIT M(v2) +0x03 table
We only support one kind of matching here (ramcfg strap), but it appears
alternate methods are possible. I wrote a tool to scan our vbios repo
for other types, but did not see any used. Hopefully this means there
aren't any in the wild that will now break.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/include')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/include/subdev/bios/M0203.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/M0203.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/M0203.h new file mode 100644 index 0000000..1f84d36 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/M0203.h @@ -0,0 +1,31 @@ +#ifndef __NVBIOS_M0203_H__ +#define __NVBIOS_M0203_H__ + +struct nvbios_M0203T { +#define M0203T_TYPE_RAMCFG 0x00 + u8 type; + u16 pointer; +}; + +u32 nvbios_M0203Te(struct nouveau_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len); +u32 nvbios_M0203Tp(struct nouveau_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, + struct nvbios_M0203T *); + +struct nvbios_M0203E { +#define M0203E_TYPE_DDR2 0x0 +#define M0203E_TYPE_DDR3 0x1 +#define M0203E_TYPE_GDDR3 0x2 +#define M0203E_TYPE_GDDR5 0x3 +#define M0203E_TYPE_SKIP 0xf + u8 type; + u8 strap; + u8 group; +}; + +u32 nvbios_M0203Ee(struct nouveau_bios *, int idx, u8 *ver, u8 *hdr); +u32 nvbios_M0203Ep(struct nouveau_bios *, int idx, u8 *ver, u8 *hdr, + struct nvbios_M0203E *); +u32 nvbios_M0203Em(struct nouveau_bios *, u8 ramcfg, u8 *ver, u8 *hdr, + struct nvbios_M0203E *); + +#endif |