drm/nouveau/top/ga100: initial support

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/core/layout.h

@@ -25,9 +25,10 @@ NVKM_LAYOUT_ONCE(NVKM_SUBDEV_THERM   , struct nvkm_therm   ,    therm)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_CLK     , struct nvkm_clk     ,      clk)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_GSP     , struct nvkm_gsp     ,      gsp)
 NVKM_LAYOUT_INST(NVKM_SUBDEV_IOCTRL  , struct nvkm_subdev  ,   ioctrl, 3)
+NVKM_LAYOUT_ONCE(NVKM_SUBDEV_FLA     , struct nvkm_subdev  ,      fla)
 
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_BSP     , struct nvkm_engine  ,      bsp)
-NVKM_LAYOUT_INST(NVKM_ENGINE_CE      , struct nvkm_engine  ,       ce, 9)
+NVKM_LAYOUT_INST(NVKM_ENGINE_CE      , struct nvkm_engine  ,       ce, 10)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_CIPHER  , struct nvkm_engine  ,   cipher)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_DISP    , struct nvkm_disp    ,     disp)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_DMAOBJ  , struct nvkm_dma     ,      dma)
@@ -40,9 +41,10 @@ NVKM_LAYOUT_ONCE(NVKM_ENGINE_MSENC   , struct nvkm_engine  ,    msenc)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_MSPDEC  , struct nvkm_engine  ,   mspdec)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_MSPPP   , struct nvkm_engine  ,    msppp)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_MSVLD   , struct nvkm_engine  ,    msvld)
-NVKM_LAYOUT_INST(NVKM_ENGINE_NVDEC   , struct nvkm_nvdec   ,    nvdec, 3)
+NVKM_LAYOUT_INST(NVKM_ENGINE_NVDEC   , struct nvkm_nvdec   ,    nvdec, 5)
 NVKM_LAYOUT_INST(NVKM_ENGINE_NVENC   , struct nvkm_nvenc   ,    nvenc, 3)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_NVJPG   , struct nvkm_engine  ,    nvjpg)
+NVKM_LAYOUT_ONCE(NVKM_ENGINE_OFA     , struct nvkm_engine  ,      ofa)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_PM      , struct nvkm_pm      ,       pm)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_SEC     , struct nvkm_engine  ,      sec)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_SEC2    , struct nvkm_sec2    ,     sec2)

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

@@ -28,4 +28,5 @@ int nvkm_top_fault_id(struct nvkm_device *, enum nvkm_subdev_type, int);
 struct nvkm_subdev *nvkm_top_fault(struct nvkm_device *, int fault);
 
 int gk104_top_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_top **);
+int ga100_top_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_top **);
 #endif

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

@@ -2581,6 +2581,7 @@ nv170_chipset = {
 	.pci      = { 0x00000001, gp100_pci_new },
 	.privring = { 0x00000001, gm200_privring_new },
 	.timer    = { 0x00000001, gk20a_timer_new },
+	.top      = { 0x00000001, ga100_top_new },
 };
 
 static const struct nvkm_device_chip
@@ -2598,6 +2599,7 @@ nv172_chipset = {
 	.pci      = { 0x00000001, gp100_pci_new },
 	.privring = { 0x00000001, gm200_privring_new },
 	.timer    = { 0x00000001, gk20a_timer_new },
+	.top      = { 0x00000001, ga100_top_new },
 	.disp     = { 0x00000001, ga102_disp_new },
 	.dma      = { 0x00000001, gv100_dma_new },
 };
@@ -2617,6 +2619,7 @@ nv174_chipset = {
 	.pci      = { 0x00000001, gp100_pci_new },
 	.privring = { 0x00000001, gm200_privring_new },
 	.timer    = { 0x00000001, gk20a_timer_new },
+	.top      = { 0x00000001, ga100_top_new },
 	.disp     = { 0x00000001, ga102_disp_new },
 	.dma      = { 0x00000001, gv100_dma_new },
 };

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

 # SPDX-License-Identifier: MIT
 nvkm-y += nvkm/subdev/top/base.o
 nvkm-y += nvkm/subdev/top/gk104.o
+nvkm-y += nvkm/subdev/top/ga100.o

drivers/gpu/drm/nouveau/nvkm/subdev/top/ga100.c

+/*
+ * Copyright 2021 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 "priv.h"
+
+static int
+ga100_top_oneinit(struct nvkm_top *top)
+{
+	struct nvkm_subdev *subdev = &top->subdev;
+	struct nvkm_device *device = subdev->device;
+	struct nvkm_top_device *info = NULL;
+	u32 data, type, inst;
+	int i, n, size = nvkm_rd32(device, 0x0224fc) >> 20;
+
+	for (i = 0, n = 0; i < size; i++) {
+		if (!info) {
+			if (!(info = nvkm_top_device_new(top)))
+				return -ENOMEM;
+			type = ~0;
+			inst = 0;
+		}
+
+		data = nvkm_rd32(device, 0x022800 + (i * 0x04));
+		nvkm_trace(subdev, "%02x: %08x\n", i, data);
+		if (!data && n == 0)
+			continue;
+
+		switch (n++) {
+		case 0:
+			type	      = (data & 0x3f000000) >> 24;
+			inst	      = (data & 0x000f0000) >> 16;
+			info->fault   = (data & 0x0000007f);
+			break;
+		case 1:
+			info->addr    = (data & 0x00fff000);
+			info->reset   = (data & 0x0000001f);
+			break;
+		case 2:
+			info->runlist = (data & 0x0000fc00) >> 10;
+			info->engine  = (data & 0x00000003);
+			break;
+		default:
+			break;
+		}
+
+		if (data & 0x80000000)
+			continue;
+		n = 0;
+
+		/* Translate engine type to NVKM engine identifier. */
+#define I_(T,I) do { info->type = (T); info->inst = (I); } while(0)
+#define O_(T,I) do { WARN_ON(inst); I_(T, I); } while (0)
+		switch (type) {
+		case 0x00000000: O_(NVKM_ENGINE_GR    ,    0); break;
+		case 0x0000000d: O_(NVKM_ENGINE_SEC2  ,    0); break;
+		case 0x0000000e: I_(NVKM_ENGINE_NVENC , inst); break;
+		case 0x00000010: I_(NVKM_ENGINE_NVDEC , inst); break;
+		case 0x00000012: I_(NVKM_SUBDEV_IOCTRL, inst); break;
+		case 0x00000013: I_(NVKM_ENGINE_CE    , inst); break;
+		case 0x00000014: O_(NVKM_SUBDEV_GSP   ,    0); break;
+		case 0x00000015: O_(NVKM_ENGINE_NVJPG ,    0); break;
+		case 0x00000016: O_(NVKM_ENGINE_OFA   ,    0); break;
+		case 0x00000017: O_(NVKM_SUBDEV_FLA   ,    0); break;
+			break;
+		default:
+			break;
+		}
+
+		nvkm_debug(subdev, "%02x.%d (%8s): addr %06x fault %2d "
+				   "runlist %2d engine %2d reset %2d\n", type, inst,
+			   info->type == NVKM_SUBDEV_NR ? "????????" : nvkm_subdev_type[info->type],
+			   info->addr, info->fault, info->runlist, info->engine, info->reset);
+		info = NULL;
+	}
+
+	return 0;
+}
+
+static const struct nvkm_top_func
+ga100_top = {
+	.oneinit = ga100_top_oneinit,
+};
+
+int
+ga100_top_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	      struct nvkm_top **ptop)
+{
+	return nvkm_top_new_(&ga100_top, device, type, inst, ptop);
+}