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drm/nouveau: Add support for SLCG for Kepler2 

That's right, there's still more power saving to go! Starting with
kepler 2, nvidia hardware has an additional level of clockgating known
as second level clockgating.  The details of this are not exact, but it
seems to work by waiting for a collection of dependent hardware blocks
to be gated before taking affect. As with the previous series, this
results in another noticeable drop in power consumption and is
programmed in the same manner.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Lyude Paul 2018-02-01 13:13:58 -05:00 committed by Ben Skeggs
parent 7d094d2958
commit a0f79082bd
1 changed files with 93 additions and 0 deletions
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93
drivers/gpu/drm/nouveau/nvkm/engine/gr/gk110.c
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@ -187,6 +187,87 @@ gk110_clkgate_blcg_init_gpc_mp_0[] = {
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_main_0[] = {
{ 0x4041f4, 1, 0x00000000 },
{ 0x409894, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_unk_0[] = {
{ 0x406004, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_sked_0[] = {
{ 0x407004, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_gpc_ctxctl_0[] = {
{ 0x41a894, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_gpc_unk_0[] = {
{ 0x418504, 1, 0x00000000 },
{ 0x41860c, 1, 0x00000000 },
{ 0x41868c, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_gpc_esetup_0[] = {
{ 0x41882c, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_gpc_zcull_0[] = {
{ 0x418974, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_gpc_l1c_0[] = {
{ 0x419cd8, 2, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_gpc_unk_1[] = {
{ 0x419c74, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_gpc_mp_0[] = {
{ 0x419fd4, 1, 0x00004a4a },
{ 0x419fdc, 1, 0x00000014 },
{ 0x419fe4, 1, 0x00000000 },
{ 0x419ff4, 1, 0x00001724 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_gpc_ppc_0[] = {
{ 0x41be2c, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_init
gk110_clkgate_slcg_init_pcounter_0[] = {
{ 0x1be018, 1, 0x000001ff },
{ 0x1bc018, 1, 0x000001ff },
{ 0x1b8018, 1, 0x000001ff },
{ 0x1b4124, 1, 0x00000000 },
{}
};
static const struct nvkm_therm_clkgate_pack
gk110_clkgate_pack[] = {
{ gk104_clkgate_blcg_init_main_0 },
@ -214,6 +295,18 @@ gk110_clkgate_pack[] = {
{ gk104_clkgate_blcg_init_rop_0 },
{ gk104_clkgate_blcg_init_rop_crop_0 },
{ gk104_clkgate_blcg_init_pxbar_0 },
{ gk110_clkgate_slcg_init_main_0 },
{ gk110_clkgate_slcg_init_unk_0 },
{ gk110_clkgate_slcg_init_sked_0 },
{ gk110_clkgate_slcg_init_gpc_ctxctl_0 },
{ gk110_clkgate_slcg_init_gpc_unk_0 },
{ gk110_clkgate_slcg_init_gpc_esetup_0 },
{ gk110_clkgate_slcg_init_gpc_zcull_0 },
{ gk110_clkgate_slcg_init_gpc_l1c_0 },
{ gk110_clkgate_slcg_init_gpc_unk_1 },
{ gk110_clkgate_slcg_init_gpc_mp_0 },
{ gk110_clkgate_slcg_init_gpc_ppc_0 },
{ gk110_clkgate_slcg_init_pcounter_0 },
{}
};