From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c | 78 ++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c

(limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c')

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c
new file mode 100644
index 000000000..78d46e35d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2010 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
+ */
+#include "mem.h"
+#include "vmm.h"
+
+#include <nvif/class.h>
+
+const u8 *
+nv50_mmu_kind(struct nvkm_mmu *base, int *count, u8 *invalid)
+{
+	/* 0x01: no bank swizzle
+	 * 0x02: bank swizzled
+	 * 0x7f: invalid
+	 *
+	 * 0x01/0x02 are values understood by the VRAM allocator,
+	 * and are required to avoid mixing the two types within
+	 * a certain range.
+	 */
+	static const u8
+	kind[128] = {
+		0x01, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x00 */
+		0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
+		0x01, 0x01, 0x01, 0x01, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x10 */
+		0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f, 0x7f, 0x7f,
+		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x20 */
+		0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f,
+		0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x30 */
+		0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
+		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, /* 0x40 */
+		0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f,
+		0x7f, 0x7f, 0x7f, 0x7f, 0x01, 0x01, 0x01, 0x7f, /* 0x50 */
+		0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
+		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x60 */
+		0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
+		0x01, 0x7f, 0x02, 0x7f, 0x01, 0x7f, 0x02, 0x7f, /* 0x70 */
+		0x01, 0x01, 0x02, 0x02, 0x01, 0x01, 0x7f, 0x7f
+	};
+	*count = ARRAY_SIZE(kind);
+	*invalid = 0x7f;
+	return kind;
+}
+
+static const struct nvkm_mmu_func
+nv50_mmu = {
+	.dma_bits = 40,
+	.mmu = {{ -1, -1, NVIF_CLASS_MMU_NV50}},
+	.mem = {{ -1,  0, NVIF_CLASS_MEM_NV50}, nv50_mem_new, nv50_mem_map },
+	.vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x1400 },
+	.kind = nv50_mmu_kind,
+};
+
+int
+nv50_mmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	     struct nvkm_mmu **pmmu)
+{
+	return nvkm_mmu_new_(&nv50_mmu, device, type, inst, pmmu);
+}
-- 
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