1 files changed, 115 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/falcon.h b/drivers/gpu/drm/tegra/falcon.h
new file mode 100644
index 000000000..1955cf11a
--- /dev/null
+++ b/drivers/gpu/drm/tegra/falcon.h
@@ -0,0 +1,115 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2015, NVIDIA Corporation.
+ */
+
+#ifndef _FALCON_H_
+#define _FALCON_H_
+
+#include <linux/types.h>
+
+#define FALCON_UCLASS_METHOD_OFFSET		0x00000040
+
+#define FALCON_UCLASS_METHOD_DATA		0x00000044
+
+#define FALCON_IRQMSET				0x00001010
+#define FALCON_IRQMSET_WDTMR			(1 << 1)
+#define FALCON_IRQMSET_HALT			(1 << 4)
+#define FALCON_IRQMSET_EXTERR			(1 << 5)
+#define FALCON_IRQMSET_SWGEN0			(1 << 6)
+#define FALCON_IRQMSET_SWGEN1			(1 << 7)
+#define FALCON_IRQMSET_EXT(v)			(((v) & 0xff) << 8)
+
+#define FALCON_IRQDEST				0x0000101c
+#define FALCON_IRQDEST_HALT			(1 << 4)
+#define FALCON_IRQDEST_EXTERR			(1 << 5)
+#define FALCON_IRQDEST_SWGEN0			(1 << 6)
+#define FALCON_IRQDEST_SWGEN1			(1 << 7)
+#define FALCON_IRQDEST_EXT(v)			(((v) & 0xff) << 8)
+
+#define FALCON_ITFEN				0x00001048
+#define FALCON_ITFEN_CTXEN			(1 << 0)
+#define FALCON_ITFEN_MTHDEN			(1 << 1)
+
+#define FALCON_IDLESTATE			0x0000104c
+
+#define FALCON_CPUCTL				0x00001100
+#define FALCON_CPUCTL_STARTCPU			(1 << 1)
+
+#define FALCON_BOOTVEC				0x00001104
+
+#define FALCON_DMACTL				0x0000110c
+#define FALCON_DMACTL_DMEM_SCRUBBING		(1 << 1)
+#define FALCON_DMACTL_IMEM_SCRUBBING		(1 << 2)
+
+#define FALCON_DMATRFBASE			0x00001110
+
+#define FALCON_DMATRFMOFFS			0x00001114
+
+#define FALCON_DMATRFCMD			0x00001118
+#define FALCON_DMATRFCMD_IDLE			(1 << 1)
+#define FALCON_DMATRFCMD_IMEM			(1 << 4)
+#define FALCON_DMATRFCMD_SIZE_256B		(6 << 8)
+#define FALCON_DMATRFCMD_DMACTX(v)		(((v) & 0x7) << 12)
+
+#define FALCON_DMATRFFBOFFS			0x0000111c
+
+struct falcon_fw_bin_header_v1 {
+	u32 magic;		/* 0x10de */
+	u32 version;		/* version of bin format (1) */
+	u32 size;		/* entire image size including this header */
+	u32 os_header_offset;
+	u32 os_data_offset;
+	u32 os_size;
+};
+
+struct falcon_fw_os_app_v1 {
+	u32 offset;
+	u32 size;
+};
+
+struct falcon_fw_os_header_v1 {
+	u32 code_offset;
+	u32 code_size;
+	u32 data_offset;
+	u32 data_size;
+};
+
+struct falcon_firmware_section {
+	unsigned long offset;
+	size_t size;
+};
+
+struct falcon_firmware {
+	/* Firmware after it is read but not loaded */
+	const struct firmware *firmware;
+
+	/* Raw firmware data */
+	dma_addr_t iova;
+	dma_addr_t phys;
+	void *virt;
+	size_t size;
+
+	/* Parsed firmware information */
+	struct falcon_firmware_section bin_data;
+	struct falcon_firmware_section data;
+	struct falcon_firmware_section code;
+};
+
+struct falcon {
+	/* Set by falcon client */
+	struct device *dev;
+	void __iomem *regs;
+
+	struct falcon_firmware firmware;
+};
+
+int falcon_init(struct falcon *falcon);
+void falcon_exit(struct falcon *falcon);
+int falcon_read_firmware(struct falcon *falcon, const char *firmware_name);
+int falcon_load_firmware(struct falcon *falcon);
+int falcon_boot(struct falcon *falcon);
+void falcon_execute_method(struct falcon *falcon, u32 method, u32 data);
+int falcon_wait_idle(struct falcon *falcon);
+
+#endif /* _FALCON_H_ */