drm/nouveau/devinit/gv100: initial support

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/subdev/devinit.h

@@ -30,4 +30,5 @@ int mcp89_devinit_new(struct nvkm_device *, int, struct nvkm_devinit **);
 int gf100_devinit_new(struct nvkm_device *, int, struct nvkm_devinit **);
 int gm107_devinit_new(struct nvkm_device *, int, struct nvkm_devinit **);
 int gm200_devinit_new(struct nvkm_device *, int, struct nvkm_devinit **);
+int gv100_devinit_new(struct nvkm_device *, int, struct nvkm_devinit **);
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -2398,6 +2398,7 @@ static const struct nvkm_device_chip
 nv140_chipset = {
 	.name = "GV100",
 	.bios = nvkm_bios_new,
+	.devinit = gv100_devinit_new,
 	.pci = gp100_pci_new,
 };
 

drivers/gpu/drm/nouveau/nvkm/subdev/devinit/Kbuild

@@ -12,3 +12,4 @@ nvkm-y += nvkm/subdev/devinit/mcp89.o
 nvkm-y += nvkm/subdev/devinit/gf100.o
 nvkm-y += nvkm/subdev/devinit/gm107.o
 nvkm-y += nvkm/subdev/devinit/gm200.o
+nvkm-y += nvkm/subdev/devinit/gv100.o

drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c

@@ -107,7 +107,7 @@ pmu_load(struct nv50_devinit *init, u8 type, bool post,
 	return pmu_exec(init, pmu.init_addr_pmu), 0;
 }
 
-static int
+int
 gm200_devinit_post(struct nvkm_devinit *base, bool post)
 {
 	struct nv50_devinit *init = nv50_devinit(base);

drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gv100.c

+/*
+ * 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 "nv50.h"
+
+#include <subdev/bios.h>
+#include <subdev/bios/pll.h>
+#include <subdev/clk/pll.h>
+
+static int
+gv100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
+{
+	struct nvkm_subdev *subdev = &init->subdev;
+	struct nvkm_device *device = subdev->device;
+	struct nvbios_pll info;
+	int head = type - PLL_VPLL0;
+	int N, fN, M, P;
+	int ret;
+
+	ret = nvbios_pll_parse(device->bios, type, &info);
+	if (ret)
+		return ret;
+
+	ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
+	if (ret < 0)
+		return ret;
+
+	switch (info.type) {
+	case PLL_VPLL0:
+	case PLL_VPLL1:
+	case PLL_VPLL2:
+	case PLL_VPLL3:
+		nvkm_wr32(device, 0x00ef10 + (head * 0x40), fN << 16);
+		nvkm_wr32(device, 0x00ef04 + (head * 0x40), (P << 16) |
+							    (N <<  8) |
+							    (M <<  0));
+		break;
+	default:
+		nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static const struct nvkm_devinit_func
+gv100_devinit = {
+	.preinit = gf100_devinit_preinit,
+	.init = nv50_devinit_init,
+	.post = gm200_devinit_post,
+	.pll_set = gv100_devinit_pll_set,
+	.disable = gm107_devinit_disable,
+};
+
+int
+gv100_devinit_new(struct nvkm_device *device, int index,
+		struct nvkm_devinit **pinit)
+{
+	return nv50_devinit_new_(&gv100_devinit, device, index, pinit);
+}

drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv50.h

@@ -24,4 +24,6 @@ int  gf100_devinit_pll_set(struct nvkm_devinit *, u32, u32);
 void gf100_devinit_preinit(struct nvkm_devinit *);
 
 u64  gm107_devinit_disable(struct nvkm_devinit *);
+
+int gm200_devinit_post(struct nvkm_devinit *, bool);
 #endif