1 files changed, 98 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/crcca7d.c b/drivers/gpu/drm/nouveau/dispnv50/crcca7d.c
new file mode 100644
index 000000000000..912f59aebe87
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/dispnv50/crcca7d.c
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
+ */
+#include "crcc37d.h"
+#include "core.h"
+#include "head.h"
+
+#include <nvif/pushc97b.h>
+
+#include <nvhw/class/clca7d.h>
+
+static int
+crcca7d_set_ctx(struct nv50_head *head, struct nv50_crc_notifier_ctx *ctx)
+{
+	struct nvif_push *push = &head->disp->core->chan.push;
+	const int i = head->base.index;
+	int ret;
+
+	ret = PUSH_WAIT(push, ctx ? 3 : 2);
+	if (ret)
+		return ret;
+
+	if (ctx) {
+		const u32 crc_hi = upper_32_bits(ctx->mem.addr);
+		const u32 crc_lo = lower_32_bits(ctx->mem.addr);
+
+		PUSH_MTHD(push, NVCA7D, HEAD_SET_SURFACE_ADDRESS_HI_CRC(i), crc_hi,
+
+					HEAD_SET_SURFACE_ADDRESS_LO_CRC(i),
+			  NVVAL(NVCA7D, HEAD_SET_SURFACE_ADDRESS_LO_CRC, ADDRESS_LO, crc_lo >> 4) |
+			  NVDEF(NVCA7D, HEAD_SET_SURFACE_ADDRESS_LO_CRC, TARGET, PHYSICAL_NVM) |
+			  NVDEF(NVCA7D, HEAD_SET_SURFACE_ADDRESS_LO_CRC, ENABLE, ENABLE));
+	} else {
+		PUSH_MTHD(push, NVCA7D, HEAD_SET_SURFACE_ADDRESS_LO_CRC(i),
+			  NVDEF(NVCA7D, HEAD_SET_SURFACE_ADDRESS_LO_CRC, ENABLE, DISABLE));
+	}
+
+	return 0;
+}
+
+static int
+crcca7d_set_src(struct nv50_head *head, int or, enum nv50_crc_source_type source,
+		struct nv50_crc_notifier_ctx *ctx)
+{
+	struct nvif_push *push = &head->disp->core->chan.push;
+	const int i = head->base.index;
+	int primary_crc, ret;
+
+	if (!source) {
+		ret = PUSH_WAIT(push, 1);
+		if (ret)
+			return ret;
+
+		PUSH_MTHD(push, NVCA7D, HEAD_SET_CRC_CONTROL(i), 0);
+
+		return crcca7d_set_ctx(head, NULL);
+	}
+
+	switch (source) {
+	case NV50_CRC_SOURCE_TYPE_SOR:
+		primary_crc = NVCA7D_HEAD_SET_CRC_CONTROL_PRIMARY_CRC_SOR(or);
+		break;
+	case NV50_CRC_SOURCE_TYPE_SF:
+		primary_crc = NVCA7D_HEAD_SET_CRC_CONTROL_PRIMARY_CRC_SF;
+		break;
+	default:
+		break;
+	}
+
+	ret = crcca7d_set_ctx(head, ctx);
+	if (ret)
+		return ret;
+
+	ret = PUSH_WAIT(push, 2);
+	if (ret)
+		return ret;
+
+	PUSH_MTHD(push, NVCA7D, HEAD_SET_CRC_CONTROL(i),
+		  NVDEF(NVCA7D, HEAD_SET_CRC_CONTROL, CONTROLLING_CHANNEL, CORE) |
+		  NVDEF(NVCA7D, HEAD_SET_CRC_CONTROL, EXPECT_BUFFER_COLLAPSE, FALSE) |
+		  NVVAL(NVCA7D, HEAD_SET_CRC_CONTROL, PRIMARY_CRC, primary_crc) |
+		  NVDEF(NVCA7D, HEAD_SET_CRC_CONTROL, SECONDARY_CRC, NONE) |
+		  NVDEF(NVCA7D, HEAD_SET_CRC_CONTROL, CRC_DURING_SNOOZE, DISABLE));
+
+	return 0;
+}
+
+const struct nv50_crc_func
+crcca7d = {
+	.set_src = crcca7d_set_src,
+	.set_ctx = crcca7d_set_ctx,
+	.get_entry = crcc37d_get_entry,
+	.ctx_finished = crcc37d_ctx_finished,
+	.flip_threshold = CRCC37D_FLIP_THRESHOLD,
+	.num_entries = CRCC37D_MAX_ENTRIES,
+	.notifier_len = sizeof(struct crcc37d_notifier),
+};