drm/nouveau: Add support for SLCG for Kepler2

Web:        https://git.kernel.org/torvalds/c/a0f79082bd1740137371f989dbdcbc19a52d3557
Commit:     a0f79082bd1740137371f989dbdcbc19a52d3557
Parent:     7d094d29584ff5a571be45dcdab5659d97f01020
Refname:    refs/heads/master
Author:     Lyude Paul <[email protected]>
AuthorDate: Thu Feb 1 13:13:58 2018 -0500
Committer:  Ben Skeggs <[email protected]>
CommitDate: Fri Feb 2 15:24:09 2018 +1000

    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 <[email protected]>
    Reviewed-by: Martin Peres <[email protected]>
    Signed-off-by: Ben Skeggs <[email protected]>
---
 drivers/gpu/drm/nouveau/nvkm/engine/gr/gk110.c | 93 ++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk110.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk110.c
index a528894231d0..4da916a9fc73 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk110.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk110.c
@@ -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 },
 	{}
 };
 
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