drm/nouveau/gr/gp102: initial support

Differences from GP100:
- 3 PPCs/GPC.
- Another random reg to calculate/write.
- Attrib CB setup a little different.
- PascalB
- PascalComputeB

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

drivers/gpu/drm/nouveau/include/nvif/class.h

@@ -125,6 +125,7 @@
 #define MAXWELL_B                                     /* cl9097.h */ 0x0000b197
 
 #define PASCAL_A                                      /* cl9097.h */ 0x0000c097
+#define PASCAL_B                                      /* cl9097.h */ 0x0000c197
 
 #define NV74_BSP                                                     0x000074b0
 
@@ -163,6 +164,7 @@
 #define MAXWELL_COMPUTE_A                                            0x0000b0c0
 #define MAXWELL_COMPUTE_B                                            0x0000b1c0
 #define PASCAL_COMPUTE_A                                             0x0000c0c0
+#define PASCAL_COMPUTE_B                                             0x0000c1c0
 
 #define NV74_CIPHER                                                  0x000074c1
 #endif

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

@@ -43,4 +43,5 @@ int gm107_gr_new(struct nvkm_device *, int, struct nvkm_gr **);
 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 **);
 #endif

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

@@ -32,6 +32,7 @@ nvkm-y += nvkm/engine/gr/gm107.o
 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/ctxnv40.o
 nvkm-y += nvkm/engine/gr/ctxnv50.o
@@ -50,3 +51,4 @@ nvkm-y += nvkm/engine/gr/ctxgm107.o
 nvkm-y += nvkm/engine/gr/ctxgm200.o
 nvkm-y += nvkm/engine/gr/ctxgm20b.o
 nvkm-y += nvkm/engine/gr/ctxgp100.o
+nvkm-y += nvkm/engine/gr/ctxgp102.o

drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h

@@ -102,6 +102,10 @@ void gm200_grctx_generate_405b60(struct gf100_gr *);
 extern const struct gf100_grctx_func gm20b_grctx;
 
 extern const struct gf100_grctx_func gp100_grctx;
+void gp100_grctx_generate_main(struct gf100_gr *, struct gf100_grctx *);
+void gp100_grctx_generate_pagepool(struct gf100_grctx *);
+
+extern const struct gf100_grctx_func gp102_grctx;
 
 /* context init value lists */
 

drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgp100.c

@@ -29,7 +29,7 @@
  * PGRAPH context implementation
  ******************************************************************************/
 
-static void
+void
 gp100_grctx_generate_pagepool(struct gf100_grctx *info)
 {
 	const struct gf100_grctx_func *grctx = info->gr->func->grctx;
@@ -123,7 +123,7 @@ gp100_grctx_generate_405b60(struct gf100_gr *gr)
 		nvkm_wr32(device, 0x405ba0 + (i * 4), gpcs[i]);
 }
 
-static void
+void
 gp100_grctx_generate_main(struct gf100_gr *gr, struct gf100_grctx *info)
 {
 	struct nvkm_device *device = gr->base.engine.subdev.device;

drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgp102.c

@@ -0,0 +1,98 @@
+/*
+ * Copyright 2016 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "ctxgf100.h"
+
+#include <subdev/fb.h>
+
+/*******************************************************************************
+ * PGRAPH context implementation
+ ******************************************************************************/
+
+static void
+gp102_grctx_generate_attrib(struct gf100_grctx *info)
+{
+	struct gf100_gr *gr = info->gr;
+	const struct gf100_grctx_func *grctx = gr->func->grctx;
+	const u32  alpha = grctx->alpha_nr;
+	const u32 attrib = grctx->attrib_nr;
+	const u32 pertpc = 0x20 * (grctx->attrib_nr_max + grctx->alpha_nr_max);
+	const u32   size = roundup(gr->tpc_total * pertpc, 0x80);
+	const u32 access = NV_MEM_ACCESS_RW;
+	const int s = 12;
+	const int b = mmio_vram(info, size, (1 << s), access);
+	const int max_batches = 0xffff;
+	u32 ao = 0;
+	u32 bo = ao + grctx->alpha_nr_max * gr->tpc_total;
+	int gpc, ppc, n = 0;
+
+	mmio_refn(info, 0x418810, 0x80000000, s, b);
+	mmio_refn(info, 0x419848, 0x10000000, s, b);
+	mmio_refn(info, 0x419c2c, 0x10000000, s, b);
+	mmio_refn(info, 0x419b00, 0x00000000, s, b);
+	mmio_wr32(info, 0x419b04, 0x80000000 | size >> 7);
+	mmio_wr32(info, 0x405830, attrib);
+	mmio_wr32(info, 0x40585c, alpha);
+	mmio_wr32(info, 0x4064c4, ((alpha / 4) << 16) | max_batches);
+
+	for (gpc = 0; gpc < gr->gpc_nr; gpc++) {
+		for (ppc = 0; ppc < gr->ppc_nr[gpc]; ppc++, n++) {
+			const u32 as =  alpha * gr->ppc_tpc_nr[gpc][ppc];
+			const u32 bs = attrib * gr->ppc_tpc_nr[gpc][ppc];
+			const u32 u = 0x418ea0 + (n * 0x04);
+			const u32 o = PPC_UNIT(gpc, ppc, 0);
+			const u32 p = GPC_UNIT(gpc, 0xc44 + (ppc * 4));
+			if (!(gr->ppc_mask[gpc] & (1 << ppc)))
+				continue;
+			mmio_wr32(info, o + 0xc0, bs);
+			mmio_wr32(info, p, bs);
+			mmio_wr32(info, o + 0xf4, bo);
+			mmio_wr32(info, o + 0xf0, bs);
+			bo += grctx->attrib_nr_max * gr->ppc_tpc_nr[gpc][ppc];
+			mmio_wr32(info, o + 0xe4, as);
+			mmio_wr32(info, o + 0xf8, ao);
+			ao += grctx->alpha_nr_max * gr->ppc_tpc_nr[gpc][ppc];
+			mmio_wr32(info, u, bs);
+		}
+	}
+
+	mmio_wr32(info, 0x4181e4, 0x00000100);
+	mmio_wr32(info, 0x41befc, 0x00000100);
+}
+
+const struct gf100_grctx_func
+gp102_grctx = {
+	.main = gp100_grctx_generate_main,
+	.unkn = gk104_grctx_generate_unkn,
+	.bundle = gm107_grctx_generate_bundle,
+	.bundle_size = 0x3000,
+	.bundle_min_gpm_fifo_depth = 0x180,
+	.bundle_token_limit = 0x900,
+	.pagepool = gp100_grctx_generate_pagepool,
+	.pagepool_size = 0x20000,
+	.attrib = gp102_grctx_generate_attrib,
+	.attrib_nr_max = 0x5d4,
+	.attrib_nr = 0x320,
+	.alpha_nr_max = 0xc00,
+	.alpha_nr = 0x800,
+};

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

@@ -124,6 +124,7 @@ struct gf100_gr_func {
 	void (*init_gpc_mmu)(struct gf100_gr *);
 	void (*init_rop_active_fbps)(struct gf100_gr *);
 	void (*init_ppc_exceptions)(struct gf100_gr *);
+	void (*init_swdx_pes_mask)(struct gf100_gr *);
 	void (*set_hww_esr_report_mask)(struct gf100_gr *);
 	const struct gf100_gr_pack *mmio;
 	struct {
@@ -150,6 +151,9 @@ int gk20a_gr_init(struct gf100_gr *);
 int gm200_gr_init(struct gf100_gr *);
 int gm200_gr_rops(struct gf100_gr *);
 
+int gp100_gr_init(struct gf100_gr *);
+void gp100_gr_init_rop_active_fbps(struct gf100_gr *);
+
 #define gf100_gr_chan(p) container_of((p), struct gf100_gr_chan, object)
 
 struct gf100_gr_chan {

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

@@ -30,7 +30,7 @@
  * PGRAPH engine/subdev functions
  ******************************************************************************/
 
-static void
+void
 gp100_gr_init_rop_active_fbps(struct gf100_gr *gr)
 {
 	struct nvkm_device *device = gr->base.engine.subdev.device;
@@ -40,7 +40,7 @@ gp100_gr_init_rop_active_fbps(struct gf100_gr *gr)
 	nvkm_mask(device, 0x408958, 0x0000000f, fbp_count); /* crop */
 }
 
-static int
+int
 gp100_gr_init(struct gf100_gr *gr)
 {
 	struct nvkm_device *device = gr->base.engine.subdev.device;
@@ -85,6 +85,8 @@ gp100_gr_init(struct gf100_gr *gr)
 	nvkm_wr32(device, GPC_BCAST(0x033c), nvkm_rd32(device, 0x100804));
 
 	gr->func->init_rop_active_fbps(gr);
+	if (gr->func->init_swdx_pes_mask)
+		gr->func->init_swdx_pes_mask(gr);
 
 	nvkm_wr32(device, 0x400500, 0x00010001);
 	nvkm_wr32(device, 0x400100, 0xffffffff);

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

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2016 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "gf100.h"
+#include "ctxgf100.h"
+
+#include <nvif/class.h>
+
+static void
+gp102_gr_init_swdx_pes_mask(struct gf100_gr *gr)
+{
+	struct nvkm_device *device = gr->base.engine.subdev.device;
+	u32 mask = 0, data, gpc;
+
+	for (gpc = 0; gpc < gr->gpc_nr; gpc++) {
+		data = nvkm_rd32(device, GPC_UNIT(gpc, 0x0c50)) & 0x0000000f;
+		mask |= data << (gpc * 4);
+	}
+
+	nvkm_wr32(device, 0x4181d0, mask);
+}
+
+static const struct gf100_gr_func
+gp102_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_swdx_pes_mask = gp102_gr_init_swdx_pes_mask,
+	.rops = gm200_gr_rops,
+	.ppc_nr = 3,
+	.grctx = &gp102_grctx,
+	.sclass = {
+		{ -1, -1, FERMI_TWOD_A },
+		{ -1, -1, KEPLER_INLINE_TO_MEMORY_B },
+		{ -1, -1, PASCAL_B, &gf100_fermi },
+		{ -1, -1, PASCAL_COMPUTE_B },
+		{}
+	}
+};
+
+int
+gp102_gr_new(struct nvkm_device *device, int index, struct nvkm_gr **pgr)
+{
+	return gm200_gr_new_(&gp102_gr, device, index, pgr);
+}