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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/subdev/bus/nv50.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/bus/nv50.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/bus/nv50.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bus/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/nv50.c
new file mode 100644
index 000000000..2055d0b10
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/nv50.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2012 Nouveau Community
+ *
+ * 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: Martin Peres <martin.peres@labri.fr>
+ * Ben Skeggs
+ */
+#include "priv.h"
+
+#include <subdev/therm.h>
+#include <subdev/timer.h>
+
+static int
+nv50_bus_hwsq_exec(struct nvkm_bus *bus, u32 *data, u32 size)
+{
+ struct nvkm_device *device = bus->subdev.device;
+ int i;
+
+ nvkm_mask(device, 0x001098, 0x00000008, 0x00000000);
+ nvkm_wr32(device, 0x001304, 0x00000000);
+ for (i = 0; i < size; i++)
+ nvkm_wr32(device, 0x001400 + (i * 4), data[i]);
+ nvkm_mask(device, 0x001098, 0x00000018, 0x00000018);
+ nvkm_wr32(device, 0x00130c, 0x00000003);
+
+ if (nvkm_msec(device, 2000,
+ if (!(nvkm_rd32(device, 0x001308) & 0x00000100))
+ break;
+ ) < 0)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+void
+nv50_bus_intr(struct nvkm_bus *bus)
+{
+ struct nvkm_subdev *subdev = &bus->subdev;
+ struct nvkm_device *device = subdev->device;
+ u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);
+
+ if (stat & 0x00000008) {
+ u32 addr = nvkm_rd32(device, 0x009084);
+ u32 data = nvkm_rd32(device, 0x009088);
+
+ nvkm_error_ratelimited(subdev, "MMIO %s of %08x FAULT at %06x\n",
+ (addr & 0x00000002) ? "write" : "read", data,
+ (addr & 0x00fffffc));
+
+ stat &= ~0x00000008;
+ nvkm_wr32(device, 0x001100, 0x00000008);
+ }
+
+ if (stat & 0x00010000) {
+ struct nvkm_therm *therm = device->therm;
+ if (therm)
+ nvkm_subdev_intr(&therm->subdev);
+ stat &= ~0x00010000;
+ nvkm_wr32(device, 0x001100, 0x00010000);
+ }
+
+ if (stat) {
+ nvkm_error(subdev, "intr %08x\n", stat);
+ nvkm_mask(device, 0x001140, stat, 0);
+ }
+}
+
+void
+nv50_bus_init(struct nvkm_bus *bus)
+{
+ struct nvkm_device *device = bus->subdev.device;
+ nvkm_wr32(device, 0x001100, 0xffffffff);
+ nvkm_wr32(device, 0x001140, 0x00010008);
+}
+
+static const struct nvkm_bus_func
+nv50_bus = {
+ .init = nv50_bus_init,
+ .intr = nv50_bus_intr,
+ .hwsq_exec = nv50_bus_hwsq_exec,
+ .hwsq_size = 64,
+};
+
+int
+nv50_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_bus **pbus)
+{
+ return nvkm_bus_new_(&nv50_bus, device, type, inst, pbus);
+}