drm/nouveau/gr: support for GP10B

GR is similar to GP100, with a few unavailable registers.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/engine/gr.h

@@ -44,4 +44,5 @@ int gm200_gr_new(struct nvkm_device *, int, struct nvkm_gr **);
 int gm20b_gr_new(struct nvkm_device *, int, struct nvkm_gr **);
 int gp100_gr_new(struct nvkm_device *, int, struct nvkm_gr **);
 int gp102_gr_new(struct nvkm_device *, int, struct nvkm_gr **);
+int gp10b_gr_new(struct nvkm_device *, int, struct nvkm_gr **);
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/gr/Kbuild

@@ -33,6 +33,7 @@ nvkm-y += nvkm/engine/gr/gm200.o
 nvkm-y += nvkm/engine/gr/gm20b.o
 nvkm-y += nvkm/engine/gr/gp100.o
 nvkm-y += nvkm/engine/gr/gp102.o
+nvkm-y += nvkm/engine/gr/gp10b.o
 
 nvkm-y += nvkm/engine/gr/ctxnv40.o
 nvkm-y += nvkm/engine/gr/ctxnv50.o

drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h

@@ -125,6 +125,7 @@ struct gf100_gr_func {
 	void (*init_rop_active_fbps)(struct gf100_gr *);
 	void (*init_ppc_exceptions)(struct gf100_gr *);
 	void (*init_swdx_pes_mask)(struct gf100_gr *);
+	void (*init_num_active_ltcs)(struct gf100_gr *);
 	void (*set_hww_esr_report_mask)(struct gf100_gr *);
 	const struct gf100_gr_pack *mmio;
 	struct {
@@ -301,4 +302,7 @@ extern const struct gf100_gr_init gm107_gr_init_cbm_0[];
 void gm107_gr_init_bios(struct gf100_gr *);
 
 void gm200_gr_init_gpc_mmu(struct gf100_gr *);
+
+void gp100_gr_init_num_active_ltcs(struct gf100_gr *gr);
+
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/gr/gp100.c

@@ -40,6 +40,15 @@ gp100_gr_init_rop_active_fbps(struct gf100_gr *gr)
 	nvkm_mask(device, 0x408958, 0x0000000f, fbp_count); /* crop */
 }
 
+void
+gp100_gr_init_num_active_ltcs(struct gf100_gr *gr)
+{
+	struct nvkm_device *device = gr->base.engine.subdev.device;
+
+	nvkm_wr32(device, GPC_BCAST(0x08ac), nvkm_rd32(device, 0x100800));
+	nvkm_wr32(device, GPC_BCAST(0x033c), nvkm_rd32(device, 0x100804));
+}
+
 int
 gp100_gr_init(struct gf100_gr *gr)
 {
@@ -81,8 +90,7 @@ gp100_gr_init(struct gf100_gr *gr)
 	}
 
 	nvkm_wr32(device, GPC_BCAST(0x3fd4), magicgpc918);
-	nvkm_wr32(device, GPC_BCAST(0x08ac), nvkm_rd32(device, 0x100800));
-	nvkm_wr32(device, GPC_BCAST(0x033c), nvkm_rd32(device, 0x100804));
+	gr->func->init_num_active_ltcs(gr);
 
 	gr->func->init_rop_active_fbps(gr);
 	if (gr->func->init_swdx_pes_mask)
@@ -154,6 +162,7 @@ gp100_gr = {
 	.init_gpc_mmu = gm200_gr_init_gpc_mmu,
 	.init_rop_active_fbps = gp100_gr_init_rop_active_fbps,
 	.init_ppc_exceptions = gk104_gr_init_ppc_exceptions,
+	.init_num_active_ltcs = gp100_gr_init_num_active_ltcs,
 	.rops = gm200_gr_rops,
 	.ppc_nr = 2,
 	.grctx = &gp100_grctx,

drivers/gpu/drm/nouveau/nvkm/engine/gr/gp102.c

@@ -47,6 +47,7 @@ gp102_gr = {
 	.init_rop_active_fbps = gp100_gr_init_rop_active_fbps,
 	.init_ppc_exceptions = gk104_gr_init_ppc_exceptions,
 	.init_swdx_pes_mask = gp102_gr_init_swdx_pes_mask,
+	.init_num_active_ltcs = gp100_gr_init_num_active_ltcs,
 	.rops = gm200_gr_rops,
 	.ppc_nr = 3,
 	.grctx = &gp102_grctx,

drivers/gpu/drm/nouveau/nvkm/engine/gr/gp10b.c

+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "ctxgf100.h"
+
+#include <nvif/class.h>
+
+static void
+gp10b_gr_init_num_active_ltcs(struct gf100_gr *gr)
+{
+	struct nvkm_device *device = gr->base.engine.subdev.device;
+
+	nvkm_wr32(device, GPC_BCAST(0x08ac), nvkm_rd32(device, 0x100800));
+}
+
+static const struct gf100_gr_func
+gp10b_gr = {
+	.init = gp100_gr_init,
+	.init_gpc_mmu = gm200_gr_init_gpc_mmu,
+	.init_rop_active_fbps = gp100_gr_init_rop_active_fbps,
+	.init_ppc_exceptions = gk104_gr_init_ppc_exceptions,
+	.init_num_active_ltcs = gp10b_gr_init_num_active_ltcs,
+	.rops = gm200_gr_rops,
+	.ppc_nr = 1,
+	.grctx = &gp102_grctx,
+	.sclass = {
+		{ -1, -1, FERMI_TWOD_A },
+		{ -1, -1, KEPLER_INLINE_TO_MEMORY_B },
+		{ -1, -1, PASCAL_A, &gf100_fermi },
+		{ -1, -1, PASCAL_COMPUTE_A },
+		{}
+	}
+};
+
+int
+gp10b_gr_new(struct nvkm_device *device, int index, struct nvkm_gr **pgr)
+{
+	return gm200_gr_new_(&gp10b_gr, device, index, pgr);
+}