From b4b7ff4b08e691656c9d77c758fc355833128ac0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 20 Jan 2016 14:01:31 -0300
Subject: Linux-libre 4.4-gnu

---
 drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c  | 14 +++++++++++
 drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c | 32 +++++++++++++++++++++++++
 drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c |  2 ++
 drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c |  2 ++
 drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h  |  5 ++++
 5 files changed, 55 insertions(+)

(limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/ltc')

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
index 930d25b6e..85b1464c0 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
@@ -67,6 +67,20 @@ nvkm_ltc_zbc_depth_get(struct nvkm_ltc *ltc, int index, const u32 depth)
 	return index;
 }
 
+void
+nvkm_ltc_invalidate(struct nvkm_ltc *ltc)
+{
+	if (ltc->func->invalidate)
+		ltc->func->invalidate(ltc);
+}
+
+void
+nvkm_ltc_flush(struct nvkm_ltc *ltc)
+{
+	if (ltc->func->flush)
+		ltc->func->flush(ltc);
+}
+
 static void
 nvkm_ltc_intr(struct nvkm_subdev *subdev)
 {
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c
index 45ac765b7..fb0de83da 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c
@@ -122,6 +122,36 @@ gf100_ltc_intr(struct nvkm_ltc *ltc)
 	}
 }
 
+void
+gf100_ltc_invalidate(struct nvkm_ltc *ltc)
+{
+	struct nvkm_device *device = ltc->subdev.device;
+	s64 taken;
+
+	nvkm_wr32(device, 0x70004, 0x00000001);
+	taken = nvkm_wait_msec(device, 2, 0x70004, 0x00000003, 0x00000000);
+	if (taken < 0)
+		nvkm_warn(&ltc->subdev, "LTC invalidate timeout\n");
+
+	if (taken > 0)
+		nvkm_debug(&ltc->subdev, "LTC invalidate took %lld ns\n", taken);
+}
+
+void
+gf100_ltc_flush(struct nvkm_ltc *ltc)
+{
+	struct nvkm_device *device = ltc->subdev.device;
+	s64 taken;
+
+	nvkm_wr32(device, 0x70010, 0x00000001);
+	taken = nvkm_wait_msec(device, 2, 0x70010, 0x00000003, 0x00000000);
+	if (taken < 0)
+		nvkm_warn(&ltc->subdev, "LTC flush timeout\n");
+
+	if (taken > 0)
+		nvkm_debug(&ltc->subdev, "LTC flush took %lld ns\n", taken);
+}
+
 /* TODO: Figure out tag memory details and drop the over-cautious allocation.
  */
 int
@@ -215,6 +245,8 @@ gf100_ltc = {
 	.zbc = 16,
 	.zbc_clear_color = gf100_ltc_zbc_clear_color,
 	.zbc_clear_depth = gf100_ltc_zbc_clear_depth,
+	.invalidate = gf100_ltc_invalidate,
+	.flush = gf100_ltc_flush,
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c
index 839e6b4c5..b4f6e0034 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c
@@ -45,6 +45,8 @@ gk104_ltc = {
 	.zbc = 16,
 	.zbc_clear_color = gf100_ltc_zbc_clear_color,
 	.zbc_clear_depth = gf100_ltc_zbc_clear_depth,
+	.invalidate = gf100_ltc_invalidate,
+	.flush = gf100_ltc_flush,
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c
index 389331bb6..3043bbfd7 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c
@@ -138,6 +138,8 @@ gm107_ltc = {
 	.zbc = 16,
 	.zbc_clear_color = gm107_ltc_zbc_clear_color,
 	.zbc_clear_depth = gm107_ltc_zbc_clear_depth,
+	.invalidate = gf100_ltc_invalidate,
+	.flush = gf100_ltc_flush,
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h
index 4e05037cc..4e3755b82 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h
@@ -17,6 +17,9 @@ struct nvkm_ltc_func {
 	int zbc;
 	void (*zbc_clear_color)(struct nvkm_ltc *, int, const u32[4]);
 	void (*zbc_clear_depth)(struct nvkm_ltc *, int, const u32);
+
+	void (*invalidate)(struct nvkm_ltc *);
+	void (*flush)(struct nvkm_ltc *);
 };
 
 int gf100_ltc_oneinit(struct nvkm_ltc *);
@@ -26,4 +29,6 @@ void gf100_ltc_cbc_clear(struct nvkm_ltc *, u32, u32);
 void gf100_ltc_cbc_wait(struct nvkm_ltc *);
 void gf100_ltc_zbc_clear_color(struct nvkm_ltc *, int, const u32[4]);
 void gf100_ltc_zbc_clear_depth(struct nvkm_ltc *, int, const u32);
+void gf100_ltc_invalidate(struct nvkm_ltc *);
+void gf100_ltc_flush(struct nvkm_ltc *);
 #endif
-- 
cgit v1.2.3-54-g00ecf