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Message-Id: <20180115220755.16780-3-lyude@redhat.com>
Date:   Mon, 15 Jan 2018 17:06:52 -0500
From:   Lyude Paul <lyude@...hat.com>
To:     nouveau@...ts.freedesktop.org
Cc:     Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Karol Herbst <karolherbst@...il.com>,
        Rhys Kidd <rhyskidd@...il.com>,
        Alexandre Courbot <acourbot@...dia.com>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Martin Peres <martin.peres@...e.fr>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: [RFC 2/4] drm/nouveau: Add support for BLCG clockgating for Kepler1

This enables the second level of clockgating for Kepler1: BLCG
(presumably, this stands for block-level clockgating). This is a deeper
level of power savings then just CG_CTRL. Setting it up is as simple as
loading some mmio packs, and turning it on and off is still controlled
through CG_CTRL.

We also introduce the nvkm_therm_clkgate_init() helper, which handles
programming various BLCG register values while initializing the GPU, but
before CG_CTRL is enabled.

Enabling BLCG is done with the nouveau config option NvPmEnableGating=2.

As well, this commit shares a lot more code with Fermi since BLCG is
mostly the same there as far as we can tell. In the future, it's likely
we'll reformat the clkgate_packs for kepler1 so that they share a list
of mmio packs with Fermi.

Signed-off-by: Lyude Paul <lyude@...hat.com>
---
 .../gpu/drm/nouveau/include/nvkm/subdev/therm.h    |  14 ++
 drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h     |   1 +
 drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.c     | 215 ++++++++++++++++++++-
 drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.h     |  55 ++++++
 drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c     |   6 +
 drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c     |  53 +++++
 drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.h     |  35 ++++
 drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h      |   3 +
 drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild   |   1 +
 drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c   |  15 +-
 drivers/gpu/drm/nouveau/nvkm/subdev/therm/gf100.c  |  77 ++++++++
 drivers/gpu/drm/nouveau/nvkm/subdev/therm/gk104.c  |   1 +
 drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c  |   2 +-
 drivers/gpu/drm/nouveau/nvkm/subdev/therm/priv.h   |   8 +
 14 files changed, 482 insertions(+), 4 deletions(-)
 create mode 100644 drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.h
 create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.h
 create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/therm/gf100.c

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
index a9204c09975b..4b49561415ef 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
@@ -49,6 +49,18 @@ enum nvkm_therm_attr_type {
 enum nvkm_therm_clkgate_level {
 	NVKM_THERM_CLKGATE_NONE = 0,
 	NVKM_THERM_CLKGATE_CG, /* basic clockgating */
+	NVKM_THERM_CLKGATE_BLCG,
+};
+
+struct nvkm_therm_clkgate_init {
+	u32 addr;
+	u8  count;
+	u32 data;
+};
+
+struct nvkm_therm_clkgate_pack {
+	enum nvkm_therm_clkgate_level level;
+	const struct nvkm_therm_clkgate_init **init;
 };
 
 struct nvkm_therm {
@@ -97,6 +109,8 @@ struct nvkm_therm {
 int nvkm_therm_temp_get(struct nvkm_therm *);
 int nvkm_therm_fan_sense(struct nvkm_therm *);
 int nvkm_therm_cstate(struct nvkm_therm *, int, int);
+void nvkm_therm_clkgate_init(struct nvkm_therm *,
+			     const struct nvkm_therm_clkgate_pack *);
 void nvkm_therm_clkgate_enable(struct nvkm_therm *);
 void nvkm_therm_clkgate_fini(struct nvkm_therm *, bool);
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h
index d7c2adb9b543..c8ec3fd97155 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h
@@ -137,6 +137,7 @@ struct gf100_gr_func {
 	int (*rops)(struct gf100_gr *);
 	int ppc_nr;
 	const struct gf100_grctx_func *grctx;
+	const struct nvkm_therm_clkgate_pack *clkgate_pack;
 	struct nvkm_sclass sclass[];
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.c
index 5e82f94c2245..93f750cbeade 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.c
@@ -22,6 +22,7 @@
  * Authors: Ben Skeggs <bskeggs@...hat.com>
  */
 #include "gf100.h"
+#include "gk104.h"
 #include "ctxgf100.h"
 
 #include <nvif/class.h>
@@ -173,6 +174,214 @@ gk104_gr_pack_mmio[] = {
 	{}
 };
 
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_main_0[] = {
+	{ 0x4041f0, 1, 0x00004046 },
+	{ 0x409890, 1, 0x00000045 },
+	{ 0x4098b0, 1, 0x0000007f },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_rstr2d_0[] = {
+	{ 0x4078c0, 1, 0x00000042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_unk_0[] = {
+	{ 0x406000, 1, 0x00004044 },
+	{ 0x405860, 1, 0x00004042 },
+	{ 0x40590c, 1, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gcc_0[] = {
+	{ 0x408040, 1, 0x00004044 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_sked_0[] = {
+	{ 0x407000, 1, 0x00004044 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_unk_1[] = {
+	{ 0x405bf0, 1, 0x00004044 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_ctxctl_0[] = {
+	{ 0x41a890, 1, 0x00000042 },
+	{ 0x41a8b0, 1, 0x0000007f },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_unk_0[] = {
+	{ 0x418500, 1, 0x00004042 },
+	{ 0x418608, 1, 0x00004042 },
+	{ 0x418688, 1, 0x00004042 },
+	{ 0x418718, 1, 0x00000042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_esetup_0[] = {
+	{ 0x418828, 1, 0x00000044 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_tpbus_0[] = {
+	{ 0x418bbc, 1, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_zcull_0[] = {
+	{ 0x418970, 1, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_tpconf_0[] = {
+	{ 0x418c70, 1, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_unk_1[] = {
+	{ 0x418cf0, 1, 0x00004042 },
+	{ 0x418d70, 1, 0x00004042 },
+	{ 0x418f0c, 1, 0x00004042 },
+	{ 0x418e0c, 1, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_gcc_0[] = {
+	{ 0x419020, 1, 0x00004042 },
+	{ 0x419038, 1, 0x00000042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_ffb_0[] = {
+	{ 0x418898, 1, 0x00000042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_tex_0[] = {
+	{ 0x419a40, 9, 0x00004042 },
+	{ 0x419acc, 1, 0x00004047 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_poly_0[] = {
+	{ 0x419868, 1, 0x00000042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_l1c_0[] = {
+	{ 0x419ccc, 3, 0x00000042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_unk_2[] = {
+	{ 0x419c70, 1, 0x00004045 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_mp_0[] = {
+	{ 0x419fd0, 1, 0x00004043 },
+	{ 0x419fd8, 1, 0x00004049 },
+	{ 0x419fe0, 2, 0x00004042 },
+	{ 0x419ff0, 1, 0x00004046 },
+	{ 0x419ff8, 1, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_gpc_ppc_0[] = {
+	{ 0x41be28, 1, 0x00000042 },
+	{ 0x41bfe8, 1, 0x00004042 },
+	{ 0x41bed0, 1, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_rop_zrop_0[] = {
+	{ 0x408810, 2, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_rop_0[] = {
+	{ 0x408a80, 6, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_rop_crop_0[] = {
+	{ 0x4089a8, 1, 0x00004042 },
+	{ 0x4089b0, 1, 0x00000042 },
+	{ 0x4089b8, 1, 0x00004042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_clkgate_blcg_init_pxbar_0[] = {
+	{ 0x13c820, 1, 0x0001007f },
+	{ 0x13cbe0, 1, 0x00000042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_pack
+gk104_clkgate_pack[] = {
+	{
+		NVKM_THERM_CLKGATE_BLCG,
+		(const struct nvkm_therm_clkgate_init*[]) {
+			 gk104_clkgate_blcg_init_main_0,
+			 gk104_clkgate_blcg_init_rstr2d_0,
+			 gk104_clkgate_blcg_init_unk_0,
+			 gk104_clkgate_blcg_init_gcc_0,
+			 gk104_clkgate_blcg_init_sked_0,
+			 gk104_clkgate_blcg_init_unk_1,
+			 gk104_clkgate_blcg_init_gpc_ctxctl_0,
+			 gk104_clkgate_blcg_init_gpc_unk_0,
+			 gk104_clkgate_blcg_init_gpc_esetup_0,
+			 gk104_clkgate_blcg_init_gpc_tpbus_0,
+			 gk104_clkgate_blcg_init_gpc_zcull_0,
+			 gk104_clkgate_blcg_init_gpc_tpconf_0,
+			 gk104_clkgate_blcg_init_gpc_unk_1,
+			 gk104_clkgate_blcg_init_gpc_gcc_0,
+			 gk104_clkgate_blcg_init_gpc_ffb_0,
+			 gk104_clkgate_blcg_init_gpc_tex_0,
+			 gk104_clkgate_blcg_init_gpc_poly_0,
+			 gk104_clkgate_blcg_init_gpc_l1c_0,
+			 gk104_clkgate_blcg_init_gpc_unk_2,
+			 gk104_clkgate_blcg_init_gpc_mp_0,
+			 gk104_clkgate_blcg_init_gpc_ppc_0,
+			 gk104_clkgate_blcg_init_rop_zrop_0,
+			 gk104_clkgate_blcg_init_rop_0,
+			 gk104_clkgate_blcg_init_rop_crop_0,
+			 gk104_clkgate_blcg_init_pxbar_0,
+			 NULL
+		}
+	},
+	{}
+};
+
 /*******************************************************************************
  * PGRAPH engine/subdev functions
  ******************************************************************************/
@@ -214,6 +423,9 @@ gk104_gr_init(struct gf100_gr *gr)
 	gr->func->init_gpc_mmu(gr);
 
 	gf100_gr_mmio(gr, gr->func->mmio);
+	if (gr->func->clkgate_pack)
+		nvkm_therm_clkgate_init(gr->base.engine.subdev.device->therm,
+					gr->func->clkgate_pack);
 
 	nvkm_wr32(device, GPC_UNIT(0, 0x3018), 0x00000001);
 
@@ -338,13 +550,14 @@ gk104_gr = {
 	.rops = gf100_gr_rops,
 	.ppc_nr = 1,
 	.grctx = &gk104_grctx,
+	.clkgate_pack = gk104_clkgate_pack,
 	.sclass = {
 		{ -1, -1, FERMI_TWOD_A },
 		{ -1, -1, KEPLER_INLINE_TO_MEMORY_A },
 		{ -1, -1, KEPLER_A, &gf100_fermi },
 		{ -1, -1, KEPLER_COMPUTE_A },
 		{}
-	}
+	},
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.h
new file mode 100644
index 000000000000..a24c177365d1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk104.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2018 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: Lyude Paul <lyude@...hat.com>
+ */
+#ifndef __GK104_GR_H__
+#define __GK104_GR_H__
+
+#include <subdev/therm.h>
+
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_main_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_rstr2d_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_unk_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gcc_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_sked_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_unk_1[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_ctxctl_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_unk_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_esetup_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_tpbus_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_zcull_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_tpconf_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_unk_1[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_gcc_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_ffb_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_tex_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_poly_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_l1c_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_unk_2[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_mp_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_gpc_ppc_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_rop_zrop_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_rop_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_rop_crop_0[];
+extern const struct nvkm_therm_clkgate_init gk104_clkgate_blcg_init_pxbar_0[];
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c
index 47d28c279707..cdc4e0a2cc6b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c
@@ -26,6 +26,7 @@
 
 #include <core/memory.h>
 #include <core/option.h>
+#include <subdev/therm.h>
 
 void
 gf100_fb_intr(struct nvkm_fb *base)
@@ -92,6 +93,11 @@ gf100_fb_init(struct nvkm_fb *base)
 
 	if (fb->r100c10_page)
 		nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8);
+
+	if (base->func->clkgate_pack) {
+		nvkm_therm_clkgate_init(device->therm,
+					base->func->clkgate_pack);
+	}
 }
 
 void *
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c
index 0a6e8eaad42c..edfdf325ba76 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c
@@ -20,10 +20,62 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors: Ben Skeggs
+ *          Lyude Paul
  */
+#include "gk104.h"
 #include "gf100.h"
 #include "ram.h"
 
+/*
+ *******************************************************************************
+ * PGRAPH registers for clockgating
+ *******************************************************************************
+ */
+const struct nvkm_therm_clkgate_init
+gk104_fb_clkgate_blcg_init_unk_0[] = {
+	{ 0x100d10, 1, 0x0000c244 },
+	{ 0x100d30, 1, 0x0000c242 },
+	{ 0x100d3c, 1, 0x00000242 },
+	{ 0x100d48, 1, 0x00000242 },
+	{ 0x100d1c, 1, 0x00000042 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_fb_clkgate_blcg_init_vm_0[] = {
+	{ 0x100c98, 1, 0x00000242 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_fb_clkgate_blcg_init_main_0[] = {
+	{ 0x10f000, 1, 0x00000042 },
+	{ 0x17e030, 1, 0x00000044 },
+	{ 0x17e040, 1, 0x00000044 },
+	{}
+};
+
+const struct nvkm_therm_clkgate_init
+gk104_fb_clkgate_blcg_init_bcast_0[] = {
+	{ 0x17ea60, 4, 0x00000044 },
+	{}
+};
+
+static const struct nvkm_therm_clkgate_pack
+gk104_fb_clkgate_pack[] = {
+	{
+		NVKM_THERM_CLKGATE_BLCG,
+		(const struct nvkm_therm_clkgate_init*[]) {
+			gk104_fb_clkgate_blcg_init_unk_0,
+			gk104_fb_clkgate_blcg_init_vm_0,
+			gk104_fb_clkgate_blcg_init_main_0,
+			gk104_fb_clkgate_blcg_init_bcast_0,
+			NULL
+		}
+	},
+	{}
+};
+
 static const struct nvkm_fb_func
 gk104_fb = {
 	.dtor = gf100_fb_dtor,
@@ -33,6 +85,7 @@ gk104_fb = {
 	.intr = gf100_fb_intr,
 	.ram_new = gk104_ram_new,
 	.default_bigpage = 17,
+	.clkgate_pack = gk104_fb_clkgate_pack,
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.h
new file mode 100644
index 000000000000..b3c78e4ff706
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2018 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: Lyude Paul
+ */
+
+#ifndef __GK104_FB_H__
+#define __GK104_FB_H__
+
+#include <subdev/therm.h>
+
+extern const struct nvkm_therm_clkgate_init gk104_fb_clkgate_blcg_init_unk_0[];
+extern const struct nvkm_therm_clkgate_init gk104_fb_clkgate_blcg_init_vm_0[];
+extern const struct nvkm_therm_clkgate_init gk104_fb_clkgate_blcg_init_main_0[];
+extern const struct nvkm_therm_clkgate_init gk104_fb_clkgate_blcg_init_bcast_0[];
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h
index 9351188d5d76..cc6e0cbf761b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h
@@ -3,6 +3,7 @@
 #define __NVKM_FB_PRIV_H__
 #define nvkm_fb(p) container_of((p), struct nvkm_fb, subdev)
 #include <subdev/fb.h>
+#include <subdev/therm.h>
 struct nvkm_bios;
 
 struct nvkm_fb_func {
@@ -27,6 +28,7 @@ struct nvkm_fb_func {
 	int (*ram_new)(struct nvkm_fb *, struct nvkm_ram **);
 
 	u8 default_bigpage;
+	const struct nvkm_therm_clkgate_pack *clkgate_pack;
 };
 
 void nvkm_fb_ctor(const struct nvkm_fb_func *, struct nvkm_device *device,
@@ -66,4 +68,5 @@ int gf100_fb_oneinit(struct nvkm_fb *);
 int gf100_fb_init_page(struct nvkm_fb *);
 
 int gm200_fb_init_page(struct nvkm_fb *);
+
 #endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild
index 4bac4772d8ed..550702eab0b1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild
@@ -9,6 +9,7 @@ nvkm-y += nvkm/subdev/therm/nv40.o
 nvkm-y += nvkm/subdev/therm/nv50.o
 nvkm-y += nvkm/subdev/therm/g84.o
 nvkm-y += nvkm/subdev/therm/gt215.o
+nvkm-y += nvkm/subdev/therm/gf100.o
 nvkm-y += nvkm/subdev/therm/gf119.o
 nvkm-y += nvkm/subdev/therm/gk104.o
 nvkm-y += nvkm/subdev/therm/gm107.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
index ba1a3aabb559..ee028d099f6a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
@@ -330,7 +330,8 @@ nvkm_therm_clkgate_oneinit(struct nvkm_therm *therm)
 		return;
 
 	switch (therm->clkgate_level) {
-	case NVKM_THERM_CLKGATE_CG: clkgate_str = "CG"; break;
+	case NVKM_THERM_CLKGATE_CG:   clkgate_str = "CG"; break;
+	case NVKM_THERM_CLKGATE_BLCG: clkgate_str = "BLCG"; break;
 	default: BUG();
 	}
 
@@ -400,6 +401,16 @@ nvkm_therm_init(struct nvkm_subdev *subdev)
 	return 0;
 }
 
+void
+nvkm_therm_clkgate_init(struct nvkm_therm *therm,
+			const struct nvkm_therm_clkgate_pack *p)
+{
+	if (!therm->clkgate_level || !therm->func->clkgate_init)
+		return;
+
+	therm->func->clkgate_init(therm, p);
+}
+
 static void *
 nvkm_therm_dtor(struct nvkm_subdev *subdev)
 {
@@ -438,7 +449,7 @@ nvkm_therm_ctor(struct nvkm_therm *therm, struct nvkm_device *device,
 		clamp((int)nvkm_longopt(device->cfgopt,
 					"NvPmEnableGating",
 					NVKM_THERM_CLKGATE_NONE),
-		      NVKM_THERM_CLKGATE_NONE, NVKM_THERM_CLKGATE_CG);
+		      NVKM_THERM_CLKGATE_NONE, NVKM_THERM_CLKGATE_BLCG);
 }
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gf100.c
new file mode 100644
index 000000000000..a2aa528e8854
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gf100.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2018 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: Lyude Paul
+ */
+#include <core/device.h>
+
+#include "priv.h"
+
+void
+gf100_clkgate_init(struct nvkm_therm *therm,
+		   const struct nvkm_therm_clkgate_pack *p)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	const struct nvkm_therm_clkgate_pack *subpack;
+	const struct nvkm_therm_clkgate_init *init;
+	int i, j;
+
+	for (i = 0, subpack = &p[i];
+	     subpack->level != NVKM_THERM_CLKGATE_NONE;
+	     subpack = &p[++i]) {
+		if (subpack->level > therm->clkgate_level)
+			continue;
+
+		for (j = 0, init = subpack->init[j];
+		     init && init->count != 0;
+		     init = subpack->init[++j]) {
+			u32 next = init->addr + init->count * 8,
+			    addr = init->addr;
+
+			while (addr < next) {
+				nvkm_wr32(device, addr, init->data);
+				addr += 8;
+			}
+		}
+	}
+}
+
+static const struct nvkm_therm_func
+gf100_therm_func = {
+	.init = gt215_therm_init,
+	.fini = g84_therm_fini,
+	.pwm_ctrl = nv50_fan_pwm_ctrl,
+	.pwm_get = nv50_fan_pwm_get,
+	.pwm_set = nv50_fan_pwm_set,
+	.pwm_clock = nv50_fan_pwm_clock,
+	.temp_get = g84_temp_get,
+	.fan_sense = gt215_therm_fan_sense,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+	/* TODO: Fermi clockgating isn't understood fully yet, so we leave it
+	 * disabled here */
+};
+
+int
+gf100_therm_new(struct nvkm_device *device, int index,
+		struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&gf100_therm_func, device, index, ptherm);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gk104.c
index 81bc73a6d143..efc8a23b55f8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gk104.c
@@ -100,6 +100,7 @@ gk104_therm_func = {
 	.temp_get = g84_temp_get,
 	.fan_sense = gt215_therm_fan_sense,
 	.program_alarms = nvkm_therm_program_alarms_polling,
+	.clkgate_init = gf100_clkgate_init,
 	.clkgate_enable = gk104_clkgate_enable,
 	.clkgate_fini = gk104_clkgate_fini,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c
index c08097f2aff5..4caf401d001a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c
@@ -36,7 +36,7 @@ gt215_therm_fan_sense(struct nvkm_therm *therm)
 	return -ENODEV;
 }
 
-static void
+void
 gt215_therm_init(struct nvkm_therm *therm)
 {
 	struct nvkm_device *device = therm->subdev.device;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/priv.h
index f30202dd88e7..a737e9b8a584 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/priv.h
@@ -97,6 +97,8 @@ struct nvkm_therm_func {
 
 	void (*program_alarms)(struct nvkm_therm *);
 
+	void (*clkgate_init)(struct nvkm_therm *,
+			     const struct nvkm_therm_clkgate_pack *);
 	void (*clkgate_enable)(struct nvkm_therm *);
 	void (*clkgate_fini)(struct nvkm_therm *, bool);
 };
@@ -114,6 +116,9 @@ void g84_therm_fini(struct nvkm_therm *);
 
 int gt215_therm_fan_sense(struct nvkm_therm *);
 
+void gf100_clkgate_init(struct nvkm_therm *,
+			const struct nvkm_therm_clkgate_pack *);
+
 void g84_therm_init(struct nvkm_therm *);
 
 int gf119_fan_pwm_ctrl(struct nvkm_therm *, int, bool);
@@ -122,6 +127,9 @@ int gf119_fan_pwm_set(struct nvkm_therm *, int, u32, u32);
 int gf119_fan_pwm_clock(struct nvkm_therm *, int);
 void gf119_therm_init(struct nvkm_therm *);
 
+void gt215_therm_init(struct nvkm_therm *therm);
+
+void gk104_therm_init(struct nvkm_therm *);
 void gk104_clkgate_enable(struct nvkm_therm *);
 void gk104_clkgate_fini(struct nvkm_therm *, bool);
 
-- 
2.14.3

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