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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/top
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/top')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/top/Kbuild2
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c148
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c110
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/top/priv.h25
4 files changed, 285 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/top/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/top/Kbuild
new file mode 100644
index 000000000..1078401cd
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/top/Kbuild
@@ -0,0 +1,2 @@
+nvkm-y += nvkm/subdev/top/base.o
+nvkm-y += nvkm/subdev/top/gk104.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
new file mode 100644
index 000000000..a1b264664
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
@@ -0,0 +1,148 @@
+/*
+ * 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 "priv.h"
+
+struct nvkm_top_device *
+nvkm_top_device_new(struct nvkm_top *top)
+{
+ struct nvkm_top_device *info = kmalloc(sizeof(*info), GFP_KERNEL);
+ if (info) {
+ info->index = NVKM_SUBDEV_NR;
+ info->addr = 0;
+ info->fault = -1;
+ info->engine = -1;
+ info->runlist = -1;
+ info->reset = -1;
+ info->intr = -1;
+ list_add_tail(&info->head, &top->device);
+ }
+ return info;
+}
+
+u32
+nvkm_top_reset(struct nvkm_top *top, enum nvkm_devidx index)
+{
+ struct nvkm_top_device *info;
+
+ if (top) {
+ list_for_each_entry(info, &top->device, head) {
+ if (info->index == index && info->reset >= 0)
+ return BIT(info->reset);
+ }
+ }
+
+ return 0;
+}
+
+u32
+nvkm_top_intr(struct nvkm_top *top, u32 intr, u64 *psubdevs)
+{
+ struct nvkm_top_device *info;
+ u64 subdevs = 0;
+ u32 handled = 0;
+
+ if (top) {
+ list_for_each_entry(info, &top->device, head) {
+ if (info->index != NVKM_SUBDEV_NR && info->intr >= 0) {
+ if (intr & BIT(info->intr)) {
+ subdevs |= BIT_ULL(info->index);
+ handled |= BIT(info->intr);
+ }
+ }
+ }
+ }
+
+ *psubdevs = subdevs;
+ return intr & ~handled;
+}
+
+enum nvkm_devidx
+nvkm_top_fault(struct nvkm_top *top, int fault)
+{
+ struct nvkm_top_device *info;
+
+ list_for_each_entry(info, &top->device, head) {
+ if (info->fault == fault)
+ return info->index;
+ }
+
+ return NVKM_SUBDEV_NR;
+}
+
+enum nvkm_devidx
+nvkm_top_engine(struct nvkm_top *top, int index, int *runl, int *engn)
+{
+ struct nvkm_top_device *info;
+ int n = 0;
+
+ list_for_each_entry(info, &top->device, head) {
+ if (info->engine >= 0 && info->runlist >= 0 && n++ == index) {
+ *runl = info->runlist;
+ *engn = info->engine;
+ return info->index;
+ }
+ }
+
+ return -ENODEV;
+}
+
+static int
+nvkm_top_oneinit(struct nvkm_subdev *subdev)
+{
+ struct nvkm_top *top = nvkm_top(subdev);
+ return top->func->oneinit(top);
+}
+
+static void *
+nvkm_top_dtor(struct nvkm_subdev *subdev)
+{
+ struct nvkm_top *top = nvkm_top(subdev);
+ struct nvkm_top_device *info, *temp;
+
+ list_for_each_entry_safe(info, temp, &top->device, head) {
+ list_del(&info->head);
+ kfree(info);
+ }
+
+ return top;
+}
+
+static const struct nvkm_subdev_func
+nvkm_top = {
+ .dtor = nvkm_top_dtor,
+ .oneinit = nvkm_top_oneinit,
+};
+
+int
+nvkm_top_new_(const struct nvkm_top_func *func, struct nvkm_device *device,
+ int index, struct nvkm_top **ptop)
+{
+ struct nvkm_top *top;
+ if (!(top = *ptop = kzalloc(sizeof(*top), GFP_KERNEL)))
+ return -ENOMEM;
+ nvkm_subdev_ctor(&nvkm_top, device, index, &top->subdev);
+ top->func = func;
+ INIT_LIST_HEAD(&top->device);
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c
new file mode 100644
index 000000000..e06acc340
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c
@@ -0,0 +1,110 @@
+/*
+ * 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 "priv.h"
+
+static int
+gk104_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;
+ int i;
+
+ for (i = 0; i < 64; i++) {
+ if (!info) {
+ if (!(info = nvkm_top_device_new(top)))
+ return -ENOMEM;
+ type = ~0;
+ }
+
+ data = nvkm_rd32(device, 0x022700 + (i * 0x04));
+ nvkm_trace(subdev, "%02x: %08x\n", i, data);
+ switch (data & 0x00000003) {
+ case 0x00000000: /* NOT_VALID */
+ continue;
+ case 0x00000001: /* DATA */
+ info->addr = (data & 0x00fff000);
+ info->fault = (data & 0x000000f8) >> 3;
+ break;
+ case 0x00000002: /* ENUM */
+ if (data & 0x00000020)
+ info->engine = (data & 0x3c000000) >> 26;
+ if (data & 0x00000010)
+ info->runlist = (data & 0x01e00000) >> 21;
+ if (data & 0x00000008)
+ info->intr = (data & 0x000f8000) >> 15;
+ if (data & 0x00000004)
+ info->reset = (data & 0x00003e00) >> 9;
+ break;
+ case 0x00000003: /* ENGINE_TYPE */
+ type = (data & 0x7ffffffc) >> 2;
+ break;
+ }
+
+ if (data & 0x80000000)
+ continue;
+
+ /* Translate engine type to NVKM engine identifier. */
+ switch (type) {
+ case 0x00000000: info->index = NVKM_ENGINE_GR; break;
+ case 0x00000001: info->index = NVKM_ENGINE_CE0; break;
+ case 0x00000002: info->index = NVKM_ENGINE_CE1; break;
+ case 0x00000003: info->index = NVKM_ENGINE_CE2; break;
+ case 0x00000008: info->index = NVKM_ENGINE_MSPDEC; break;
+ case 0x00000009: info->index = NVKM_ENGINE_MSPPP; break;
+ case 0x0000000a: info->index = NVKM_ENGINE_MSVLD; break;
+ case 0x0000000b: info->index = NVKM_ENGINE_MSENC; break;
+ case 0x0000000c: info->index = NVKM_ENGINE_VIC; break;
+ case 0x0000000d: info->index = NVKM_ENGINE_SEC; break;
+ case 0x0000000e: info->index = NVKM_ENGINE_NVENC0; break;
+ case 0x0000000f: info->index = NVKM_ENGINE_NVENC1; break;
+ case 0x00000010: info->index = NVKM_ENGINE_NVDEC; break;
+ break;
+ default:
+ break;
+ }
+
+ nvkm_debug(subdev, "%02x (%8s): addr %06x fault %2d engine %2d "
+ "runlist %2d intr %2d reset %2d\n", type,
+ info->index == NVKM_SUBDEV_NR ? NULL :
+ nvkm_subdev_name[info->index],
+ info->addr, info->fault, info->engine, info->runlist,
+ info->intr, info->reset);
+ info = NULL;
+ }
+
+ return 0;
+}
+
+static const struct nvkm_top_func
+gk104_top = {
+ .oneinit = gk104_top_oneinit,
+};
+
+int
+gk104_top_new(struct nvkm_device *device, int index, struct nvkm_top **ptop)
+{
+ return nvkm_top_new_(&gk104_top, device, index, ptop);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/top/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/top/priv.h
new file mode 100644
index 000000000..adb3ed03d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/top/priv.h
@@ -0,0 +1,25 @@
+#ifndef __NVKM_TOP_PRIV_H__
+#define __NVKM_TOP_PRIV_H__
+#define nvkm_top(p) container_of((p), struct nvkm_top, subdev)
+#include <subdev/top.h>
+
+struct nvkm_top_func {
+ int (*oneinit)(struct nvkm_top *);
+};
+
+int nvkm_top_new_(const struct nvkm_top_func *, struct nvkm_device *,
+ int, struct nvkm_top **);
+
+struct nvkm_top_device {
+ enum nvkm_devidx index;
+ u32 addr;
+ int fault;
+ int engine;
+ int runlist;
+ int reset;
+ int intr;
+ struct list_head head;
+};
+
+struct nvkm_top_device *nvkm_top_device_new(struct nvkm_top *);
+#endif
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-03 05:14:13 +0000