From 838efaa5743802f78a64fc64d3237b79517cee9f Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 11 Dec 2018 14:50:02 +1000
Subject: [PATCH] drm/nouveau/bar/tu104: initial support
Git-commit: 838efaa5743802f78a64fc64d3237b79517cee9f
Patch-mainline: v5.0-rc1
References: bsc#1133593
New registers.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h | 1 +
drivers/gpu/drm/nouveau/nvkm/engine/device/base.c | 1 +
drivers/gpu/drm/nouveau/nvkm/subdev/bar/Kbuild | 1 +
drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu104.c | 98 +++++++++++++++++++++++
4 files changed, 101 insertions(+)
create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu104.c
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h
index 18dd10aaf857..fd9d713b611c 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h
@@ -29,4 +29,5 @@ int gf100_bar_new(struct nvkm_device *, int, struct nvkm_bar **);
int gk20a_bar_new(struct nvkm_device *, int, struct nvkm_bar **);
int gm107_bar_new(struct nvkm_device *, int, struct nvkm_bar **);
int gm20b_bar_new(struct nvkm_device *, int, struct nvkm_bar **);
+int tu104_bar_new(struct nvkm_device *, int, struct nvkm_bar **);
#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
index 19da7259b231..eb14584fb386 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
@@ -2437,6 +2437,7 @@ nv140_chipset = {
static const struct nvkm_device_chip
nv164_chipset = {
.name = "TU104",
+ .bar = tu104_bar_new,
.bios = nvkm_bios_new,
.bus = gf100_bus_new,
.devinit = tu104_devinit_new,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/Kbuild
index e5830453813d..ab0282dc0736 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/Kbuild
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/Kbuild
@@ -5,3 +5,4 @@ nvkm-y += nvkm/subdev/bar/gf100.o
nvkm-y += nvkm/subdev/bar/gk20a.o
nvkm-y += nvkm/subdev/bar/gm107.o
nvkm-y += nvkm/subdev/bar/gm20b.o
+nvkm-y += nvkm/subdev/bar/tu104.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu104.c
new file mode 100644
index 000000000000..ecaead156e9b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu104.c
@@ -0,0 +1,98 @@
+/*
+ * 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.
+ */
+#include "gf100.h"
+
+#include <core/memory.h>
+#include <subdev/timer.h>
+
+static void
+tu104_bar_bar2_wait(struct nvkm_bar *bar)
+{
+ struct nvkm_device *device = bar->subdev.device;
+ nvkm_msec(device, 2000,
+ if (!(nvkm_rd32(device, 0xb80f50) & 0x0000000c))
+ break;
+ );
+}
+
+static void
+tu104_bar_bar2_fini(struct nvkm_bar *bar)
+{
+ nvkm_mask(bar->subdev.device, 0xb80f48, 0x80000000, 0x00000000);
+}
+
+static void
+tu104_bar_bar2_init(struct nvkm_bar *base)
+{
+ struct nvkm_device *device = base->subdev.device;
+ struct gf100_bar *bar = gf100_bar(base);
+ u32 addr = nvkm_memory_addr(bar->bar[0].inst) >> 12;
+ if (bar->bar2_halve)
+ addr |= 0x40000000;
+ nvkm_wr32(device, 0xb80f48, 0x80000000 | addr);
+}
+
+static void
+tu104_bar_bar1_wait(struct nvkm_bar *bar)
+{
+ struct nvkm_device *device = bar->subdev.device;
+ nvkm_msec(device, 2000,
+ if (!(nvkm_rd32(device, 0xb80f50) & 0x00000003))
+ break;
+ );
+}
+
+static void
+tu104_bar_bar1_fini(struct nvkm_bar *bar)
+{
+ nvkm_mask(bar->subdev.device, 0xb80f40, 0x80000000, 0x00000000);
+}
+
+static void
+tu104_bar_bar1_init(struct nvkm_bar *base)
+{
+ struct nvkm_device *device = base->subdev.device;
+ struct gf100_bar *bar = gf100_bar(base);
+ const u32 addr = nvkm_memory_addr(bar->bar[1].inst) >> 12;
+ nvkm_wr32(device, 0xb80f40, 0x80000000 | addr);
+}
+
+static const struct nvkm_bar_func
+tu104_bar = {
+ .dtor = gf100_bar_dtor,
+ .oneinit = gf100_bar_oneinit,
+ .bar1.init = tu104_bar_bar1_init,
+ .bar1.fini = tu104_bar_bar1_fini,
+ .bar1.wait = tu104_bar_bar1_wait,
+ .bar1.vmm = gf100_bar_bar1_vmm,
+ .bar2.init = tu104_bar_bar2_init,
+ .bar2.fini = tu104_bar_bar2_fini,
+ .bar2.wait = tu104_bar_bar2_wait,
+ .bar2.vmm = gf100_bar_bar2_vmm,
+ .flush = g84_bar_flush,
+};
+
+int
+tu104_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar)
+{
+ return gf100_bar_new_(&tu104_bar, device, index, pbar);
+}
--
2.16.4