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| author | Karol Herbst <karolherbst@gmail.com> | 2016-07-12 21:36:08 +0200 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2016-10-12 17:29:24 +1000 |
| commit | f26493d22fbc42ee6645a1628b50d334048c99f3 (patch) | |
| tree | 5825a4401e49d93d90cbe1e4b500b09431d2a27d /drivers/gpu/drm/nouveau/include/nvkm/subdev | |
| parent | 1f7f3d91ad38afc706f838fb5a642b21d28e4485 (diff) | |
| download | linux-f26493d22fbc42ee6645a1628b50d334048c99f3.tar.bz2 | |
drm/nouveau/bios: Add parsing of VPSTATE table
This table contains three important clocks:
base clock: This is the non boosted max clock.
tdp clock: The clock at wich the vbios guarentees the TDP won't ever be
exceeded at max load (seems to be always the same as the base
clock, but behaves differently).
boost clock: The avg clock the gpu will stay boosted to. It doesn't seem to
affect the behaviour of the nvidia driver at all though.
v2: Make clear that base/boost/tdp fields are ids.
v5: Rename Base clock to vpstate.
Make vbios pointers 32bit.
Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Reviewed-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/subdev')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h new file mode 100644 index 000000000000..87f804fc3a88 --- /dev/null +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h @@ -0,0 +1,24 @@ +#ifndef __NVBIOS_VPSTATE_H__ +#define __NVBIOS_VPSTATE_H__ +struct nvbios_vpstate_header { + u32 offset; + + u8 version; + u8 hlen; + u8 ecount; + u8 elen; + u8 scount; + u8 slen; + + u8 base_id; + u8 boost_id; + u8 tdp_id; +}; +struct nvbios_vpstate_entry { + u8 pstate; + u16 clock_mhz; +}; +int nvbios_vpstate_parse(struct nvkm_bios *, struct nvbios_vpstate_header *); +int nvbios_vpstate_entry(struct nvkm_bios *, struct nvbios_vpstate_header *, + u8 idx, struct nvbios_vpstate_entry *); +#endif |