Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Received-SPF: Pass (protection.outlook.com: domain of xilinx.com designates
 149.199.62.198 as permitted sender) receiver=protection.outlook.com;
 client-ip=149.199.62.198; helo=xsj-pvapexch02.xlnx.xilinx.com;
Envelope-to: maxz@xilinx.com,
 max.zhen@xilinx.com,
 michal.simek@xilinx.com,
 sonal.santan@xilinx.com,
 lizhih@xilinx.com,
 stefanos@xilinx.com,
 mdf@kernel.org,
 robh@kernel.org,
 trix@redhat.com,
 devicetree@vger.kernel.org,
 linux-fpga@vger.kernel.org,
 linux-kernel@vger.kernel.org
From:   Lizhi Hou <lizhi.hou@xilinx.com>
To:     <linux-kernel@vger.kernel.org>
CC:     Lizhi Hou <lizhih@xilinx.com>, <linux-fpga@vger.kernel.org>,
        <maxz@xilinx.com>, <sonal.santan@xilinx.com>,
        <michal.simek@xilinx.com>, <stefanos@xilinx.com>,
        <devicetree@vger.kernel.org>, <trix@redhat.com>, <mdf@kernel.org>,
        <robh@kernel.org>, Max Zhen <max.zhen@xilinx.com>
Subject: [PATCH V3 XRT Alveo 03/18] fpga: xrt: xclbin file helper functions
Date:   Wed, 17 Feb 2021 22:40:04 -0800
Message-ID: <20210218064019.29189-4-lizhih@xilinx.com>
In-Reply-To: <20210218064019.29189-1-lizhih@xilinx.com>
References: <20210218064019.29189-1-lizhih@xilinx.com>
MIME-Version: 1.0
Content-Type: text/plain
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Feb 2021 06:43:29.8761
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: fb218d68-0618-47aa-320c-08d8d3d880c0
X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.62.198];Helo=[xsj-pvapexch02.xlnx.xilinx.com]
X-MS-Exchange-CrossTenant-AuthSource: CY1NAM02FT033.eop-nam02.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR02MB4861
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Alveo FPGA firmware and partial reconfigure file are in xclbin format. Add
code to enumerate and extract sections from xclbin files. xclbin.h is cross
platform and used across all platforms and OS

Signed-off-by: Sonal Santan <sonal.santan@xilinx.com>
Signed-off-by: Max Zhen <max.zhen@xilinx.com>
Signed-off-by: Lizhi Hou <lizhih@xilinx.com>
---
 drivers/fpga/xrt/include/xclbin-helper.h |  52 +++
 drivers/fpga/xrt/lib/xclbin.c            | 394 ++++++++++++++++++++++
 include/uapi/linux/xrt/xclbin.h          | 408 +++++++++++++++++++++++
 3 files changed, 854 insertions(+)
 create mode 100644 drivers/fpga/xrt/include/xclbin-helper.h
 create mode 100644 drivers/fpga/xrt/lib/xclbin.c
 create mode 100644 include/uapi/linux/xrt/xclbin.h

diff --git a/drivers/fpga/xrt/include/xclbin-helper.h b/drivers/fpga/xrt/include/xclbin-helper.h
new file mode 100644
index 000000000000..68218efc9d0b
--- /dev/null
+++ b/drivers/fpga/xrt/include/xclbin-helper.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Header file for Xilinx Runtime (XRT) driver
+ *
+ * Copyright (C) 2020-2021 Xilinx, Inc.
+ *
+ * Authors:
+ *    David Zhang <davidzha@xilinx.com>
+ *    Sonal Santan <sonal.santan@xilinx.com>
+ */
+
+#ifndef _XRT_XCLBIN_H
+#define _XRT_XCLBIN_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/xrt/xclbin.h>
+
+#define ICAP_XCLBIN_V2	"xclbin2"
+#define DMA_HWICAP_BITFILE_BUFFER_SIZE 1024
+#define MAX_XCLBIN_SIZE (1024 * 1024 * 1024) /* Assuming xclbin <= 1G, always */
+
+enum axlf_section_kind;
+struct axlf;
+
+/**
+ * Bitstream header information as defined by Xilinx tools.
+ * Please note that this struct definition is not owned by the driver.
+ */
+struct hw_icap_bit_header {
+	unsigned int header_length;     /* Length of header in 32 bit words */
+	unsigned int bitstream_length;  /* Length of bitstream to read in bytes*/
+	unsigned char *design_name;     /* Design name get from bitstream */
+	unsigned char *part_name;       /* Part name read from bitstream */
+	unsigned char *date;           /* Date read from bitstream header */
+	unsigned char *time;           /* Bitstream creation time */
+	unsigned int magic_length;      /* Length of the magic numbers */
+	unsigned char *version;		/* Version string */
+};
+
+const char *xrt_xclbin_kind_to_string(enum axlf_section_kind kind);
+int xrt_xclbin_get_section(const struct axlf *xclbin,
+			   enum axlf_section_kind kind, void **data,
+			   uint64_t *len);
+int xrt_xclbin_get_metadata(struct device *dev, const struct axlf *xclbin, char **dtb);
+int xrt_xclbin_parse_bitstream_header(const unsigned char *data,
+				      unsigned int size,
+				      struct hw_icap_bit_header *header);
+void xrt_xclbin_free_header(struct hw_icap_bit_header *header);
+const char *xrt_clock_type2epname(enum CLOCK_TYPE type);
+
+#endif /* _XRT_XCLBIN_H */
diff --git a/drivers/fpga/xrt/lib/xclbin.c b/drivers/fpga/xrt/lib/xclbin.c
new file mode 100644
index 000000000000..47dc6ca25c1b
--- /dev/null
+++ b/drivers/fpga/xrt/lib/xclbin.c
@@ -0,0 +1,394 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Xilinx Alveo FPGA Driver XCLBIN parser
+ *
+ * Copyright (C) 2020-2021 Xilinx, Inc.
+ *
+ * Authors: David Zhang <davidzha@xilinx.com>
+ */
+
+#include <asm/errno.h>
+#include <linux/vmalloc.h>
+#include <linux/device.h>
+#include "xclbin-helper.h"
+#include "metadata.h"
+
+/* Used for parsing bitstream header */
+#define XHI_EVEN_MAGIC_BYTE     0x0f
+#define XHI_ODD_MAGIC_BYTE      0xf0
+
+/* Extra mode for IDLE */
+#define XHI_OP_IDLE  -1
+#define XHI_BIT_HEADER_FAILURE -1
+
+/* The imaginary module length register */
+#define XHI_MLR                  15
+
+static inline unsigned char xhi_data_and_inc(const unsigned char *d, int *i, int sz)
+{
+	unsigned char data;
+
+	if (*i >= sz)
+		return -1;
+
+	data = d[*i];
+	(*i)++;
+
+	return data;
+}
+
+static const struct axlf_section_header *
+xrt_xclbin_get_section_hdr(const struct axlf *xclbin,
+			   enum axlf_section_kind kind)
+{
+	int i = 0;
+
+	for (i = 0; i < xclbin->m_header.m_numSections; i++) {
+		if (xclbin->m_sections[i].m_sectionKind == kind)
+			return &xclbin->m_sections[i];
+	}
+
+	return NULL;
+}
+
+static int
+xrt_xclbin_check_section_hdr(const struct axlf_section_header *header,
+			     u64 xclbin_len)
+{
+	int ret;
+
+	ret = (header->m_sectionOffset + header->m_sectionSize) > xclbin_len ? -EINVAL : 0;
+
+	return ret;
+}
+
+static int xrt_xclbin_section_info(const struct axlf *xclbin,
+				   enum axlf_section_kind kind,
+				   u64 *offset, u64 *size)
+{
+	const struct axlf_section_header *mem_header = NULL;
+	u64 xclbin_len;
+	int err = 0;
+
+	mem_header = xrt_xclbin_get_section_hdr(xclbin, kind);
+	if (!mem_header)
+		return -EINVAL;
+
+	xclbin_len = xclbin->m_header.m_length;
+	if (xclbin_len > MAX_XCLBIN_SIZE)
+		return -EINVAL;
+
+	err = xrt_xclbin_check_section_hdr(mem_header, xclbin_len);
+	if (err)
+		return err;
+
+	*offset = mem_header->m_sectionOffset;
+	*size = mem_header->m_sectionSize;
+
+	return 0;
+}
+
+/* caller should free the allocated memory for **data */
+int xrt_xclbin_get_section(const struct axlf *buf,
+			   enum axlf_section_kind kind,
+			   void **data, u64 *len)
+{
+	const struct axlf *xclbin = (const struct axlf *)buf;
+	void *section = NULL;
+	int err = 0;
+	u64 offset = 0;
+	u64 size = 0;
+
+	err = xrt_xclbin_section_info(xclbin, kind, &offset, &size);
+	if (err)
+		return err;
+
+	section = vmalloc(size);
+	if (!section)
+		return -ENOMEM;
+
+	memcpy(section, ((const char *)xclbin) + offset, size);
+
+	*data = section;
+	if (len)
+		*len = size;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xrt_xclbin_get_section);
+
+/* parse bitstream header */
+int xrt_xclbin_parse_bitstream_header(const unsigned char *data,
+				      unsigned int size,
+				      struct hw_icap_bit_header *header)
+{
+	unsigned int index;
+	unsigned int len;
+	unsigned int tmp;
+	unsigned int i;
+
+	memset(header, 0, sizeof(*header));
+	/* Start Index at start of bitstream */
+	index = 0;
+
+	/* Initialize HeaderLength.  If header returned early inidicates
+	 * failure.
+	 */
+	header->header_length = XHI_BIT_HEADER_FAILURE;
+
+	/* Get "Magic" length */
+	header->magic_length = xhi_data_and_inc(data, &index, size);
+	header->magic_length = (header->magic_length << 8) | xhi_data_and_inc(data, &index, size);
+
+	/* Read in "magic" */
+	for (i = 0; i < header->magic_length - 1; i++) {
+		tmp = xhi_data_and_inc(data, &index, size);
+		if (i % 2 == 0 && tmp != XHI_EVEN_MAGIC_BYTE)
+			return -1;	/* INVALID_FILE_HEADER_ERROR */
+
+		if (i % 2 == 1 && tmp != XHI_ODD_MAGIC_BYTE)
+			return -1;	/* INVALID_FILE_HEADER_ERROR */
+	}
+
+	/* Read null end of magic data. */
+	tmp = xhi_data_and_inc(data, &index, size);
+
+	/* Read 0x01 (short) */
+	tmp = xhi_data_and_inc(data, &index, size);
+	tmp = (tmp << 8) | xhi_data_and_inc(data, &index, size);
+
+	/* Check the "0x01" half word */
+	if (tmp != 0x01)
+		return -1;	/* INVALID_FILE_HEADER_ERROR */
+
+	/* Read 'a' */
+	tmp = xhi_data_and_inc(data, &index, size);
+	if (tmp != 'a')
+		return -1;	/* INVALID_FILE_HEADER_ERROR	*/
+
+	/* Get Design Name length */
+	len = xhi_data_and_inc(data, &index, size);
+	len = (len << 8) | xhi_data_and_inc(data, &index, size);
+
+	/* allocate space for design name and final null character. */
+	header->design_name = vmalloc(len);
+	if (!header->design_name)
+		return -ENOMEM;
+
+	/* Read in Design Name */
+	for (i = 0; i < len; i++)
+		header->design_name[i] = xhi_data_and_inc(data, &index, size);
+
+	if (header->design_name[len - 1] != '\0')
+		return -1;
+
+	header->version = strstr(header->design_name, "Version=") + strlen("Version=");
+
+	/* Read 'b' */
+	tmp = xhi_data_and_inc(data, &index, size);
+	if (tmp != 'b')
+		return -1;	/* INVALID_FILE_HEADER_ERROR */
+
+	/* Get Part Name length */
+	len = xhi_data_and_inc(data, &index, size);
+	len = (len << 8) | xhi_data_and_inc(data, &index, size);
+
+	/* allocate space for part name and final null character. */
+	header->part_name = vmalloc(len);
+	if (!header->part_name)
+		return -ENOMEM;
+
+	/* Read in part name */
+	for (i = 0; i < len; i++)
+		header->part_name[i] = xhi_data_and_inc(data, &index, size);
+
+	if (header->part_name[len - 1] != '\0')
+		return -1;
+
+	/* Read 'c' */
+	tmp = xhi_data_and_inc(data, &index, size);
+	if (tmp != 'c')
+		return -1;	/* INVALID_FILE_HEADER_ERROR */
+
+	/* Get date length */
+	len = xhi_data_and_inc(data, &index, size);
+	len = (len << 8) | xhi_data_and_inc(data, &index, size);
+
+	/* allocate space for date and final null character. */
+	header->date = vmalloc(len);
+	if (!header->date)
+		return -ENOMEM;
+
+	/* Read in date name */
+	for (i = 0; i < len; i++)
+		header->date[i] = xhi_data_and_inc(data, &index, size);
+
+	if (header->date[len - 1] != '\0')
+		return -1;
+
+	/* Read 'd' */
+	tmp = xhi_data_and_inc(data, &index, size);
+	if (tmp != 'd')
+		return -1;	/* INVALID_FILE_HEADER_ERROR  */
+
+	/* Get time length */
+	len = xhi_data_and_inc(data, &index, size);
+	len = (len << 8) | xhi_data_and_inc(data, &index, size);
+
+	/* allocate space for time and final null character. */
+	header->time = vmalloc(len);
+	if (!header->time)
+		return -ENOMEM;
+
+	/* Read in time name */
+	for (i = 0; i < len; i++)
+		header->time[i] = xhi_data_and_inc(data, &index, size);
+
+	if (header->time[len - 1] != '\0')
+		return -1;
+
+	/* Read 'e' */
+	tmp = xhi_data_and_inc(data, &index, size);
+	if (tmp != 'e')
+		return -1;	/* INVALID_FILE_HEADER_ERROR */
+
+	/* Get byte length of bitstream */
+	header->bitstream_length = xhi_data_and_inc(data, &index, size);
+	header->bitstream_length = (header->bitstream_length << 8) |
+		xhi_data_and_inc(data, &index, size);
+	header->bitstream_length = (header->bitstream_length << 8) |
+		xhi_data_and_inc(data, &index, size);
+	header->bitstream_length = (header->bitstream_length << 8) |
+		xhi_data_and_inc(data, &index, size);
+
+	header->header_length = index;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xrt_xclbin_parse_bitstream_header);
+
+void xrt_xclbin_free_header(struct hw_icap_bit_header *header)
+{
+	vfree(header->design_name);
+	vfree(header->part_name);
+	vfree(header->date);
+	vfree(header->time);
+}
+EXPORT_SYMBOL_GPL(xrt_xclbin_free_header);
+
+struct xrt_clock_desc {
+	char	*clock_ep_name;
+	u32	clock_xclbin_type;
+	char	*clkfreq_ep_name;
+} clock_desc[] = {
+	{
+		.clock_ep_name = XRT_MD_NODE_CLK_KERNEL1,
+		.clock_xclbin_type = CT_DATA,
+		.clkfreq_ep_name = XRT_MD_NODE_CLKFREQ_K1,
+	},
+	{
+		.clock_ep_name = XRT_MD_NODE_CLK_KERNEL2,
+		.clock_xclbin_type = CT_KERNEL,
+		.clkfreq_ep_name = XRT_MD_NODE_CLKFREQ_K2,
+	},
+	{
+		.clock_ep_name = XRT_MD_NODE_CLK_KERNEL3,
+		.clock_xclbin_type = CT_SYSTEM,
+		.clkfreq_ep_name = XRT_MD_NODE_CLKFREQ_HBM,
+	},
+};
+
+const char *xrt_clock_type2epname(enum CLOCK_TYPE type)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(clock_desc); i++) {
+		if (clock_desc[i].clock_xclbin_type == type)
+			return clock_desc[i].clock_ep_name;
+	}
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(xrt_clock_type2epname);
+
+static const char *clock_type2clkfreq_name(u32 type)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(clock_desc); i++) {
+		if (clock_desc[i].clock_xclbin_type == type)
+			return clock_desc[i].clkfreq_ep_name;
+	}
+	return NULL;
+}
+
+static int xrt_xclbin_add_clock_metadata(struct device *dev,
+					 const struct axlf *xclbin,
+					 char *dtb)
+{
+	int i;
+	u16 freq;
+	struct clock_freq_topology *clock_topo;
+	int rc = xrt_xclbin_get_section(xclbin, CLOCK_FREQ_TOPOLOGY,
+					(void **)&clock_topo, NULL);
+
+	if (rc)
+		return 0;
+
+	for (i = 0; i < clock_topo->m_count; i++) {
+		u8 type = clock_topo->m_clock_freq[i].m_type;
+		const char *ep_name = xrt_clock_type2epname(type);
+		const char *counter_name = clock_type2clkfreq_name(type);
+
+		if (!ep_name || !counter_name)
+			continue;
+
+		freq = cpu_to_be16(clock_topo->m_clock_freq[i].m_freq_Mhz);
+		rc = xrt_md_set_prop(dev, dtb, ep_name, NULL, XRT_MD_PROP_CLK_FREQ,
+				     &freq, sizeof(freq));
+		if (rc)
+			break;
+
+		rc = xrt_md_set_prop(dev, dtb, ep_name, NULL, XRT_MD_PROP_CLK_CNT,
+				     counter_name, strlen(counter_name) + 1);
+		if (rc)
+			break;
+	}
+
+	vfree(clock_topo);
+
+	return rc;
+}
+
+int xrt_xclbin_get_metadata(struct device *dev, const struct axlf *xclbin, char **dtb)
+{
+	char *md = NULL, *newmd = NULL;
+	u64 len;
+	int rc = xrt_xclbin_get_section(xclbin, PARTITION_METADATA,
+					(void **)&md, &len);
+
+	if (rc)
+		goto done;
+
+	/* Sanity check the dtb section. */
+	if (xrt_md_size(dev, md) > len) {
+		rc = -EINVAL;
+		goto done;
+	}
+
+	newmd = xrt_md_dup(dev, md);
+	if (!newmd) {
+		rc = -EFAULT;
+		goto done;
+	}
+	/* Convert various needed xclbin sections into dtb. */
+	rc = xrt_xclbin_add_clock_metadata(dev, xclbin, newmd);
+
+done:
+	if (rc == 0)
+		*dtb = newmd;
+	else
+		vfree(newmd);
+	vfree(md);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(xrt_xclbin_get_metadata);
diff --git a/include/uapi/linux/xrt/xclbin.h b/include/uapi/linux/xrt/xclbin.h
new file mode 100644
index 000000000000..53f140123ef1
--- /dev/null
+++ b/include/uapi/linux/xrt/xclbin.h
@@ -0,0 +1,408 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ *  Xilinx FPGA compiled binary container format
+ *
+ *  Copyright (C) 2015-2021, Xilinx Inc
+ */
+
+#ifndef _XCLBIN_H_
+#define _XCLBIN_H_
+
+#ifdef _WIN32
+  #include <cstdint>
+  #include <algorithm>
+  #include "windows/uuid.h"
+#else
+  #if defined(__KERNEL__)
+    #include <linux/types.h>
+    #include <linux/uuid.h>
+    #include <linux/version.h>
+  #elif defined(__cplusplus)
+    #include <cstdlib>
+    #include <cstdint>
+    #include <algorithm>
+    #include <uuid/uuid.h>
+  #else
+    #include <stdlib.h>
+    #include <stdint.h>
+    #include <uuid/uuid.h>
+  #endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * DOC: Container format for Xilinx FPGA images
+ * The container stores bitstreams, metadata and firmware images.
+ * xclbin/xsabin is ELF-like binary container format. It is structured
+ * series of sections. There is a file header followed by several section
+ * headers which is followed by sections. A section header points to an
+ * actual section. There is an optional signature at the end. The
+ * following figure illustrates a typical xclbin:
+ *
+ *     +---------------------+
+ *     |		     |
+ *     |       HEADER	     |
+ *     +---------------------+
+ *     |   SECTION  HEADER   |
+ *     |		     |
+ *     +---------------------+
+ *     |	 ...	     |
+ *     |		     |
+ *     +---------------------+
+ *     |   SECTION  HEADER   |
+ *     |		     |
+ *     +---------------------+
+ *     |       SECTION	     |
+ *     |		     |
+ *     +---------------------+
+ *     |	 ...	     |
+ *     |		     |
+ *     +---------------------+
+ *     |       SECTION	     |
+ *     |		     |
+ *     +---------------------+
+ *     |      SIGNATURE	     |
+ *     |      (OPTIONAL)     |
+ *     +---------------------+
+ */
+
+enum XCLBIN_MODE {
+	XCLBIN_FLAT,
+	XCLBIN_PR,
+	XCLBIN_TANDEM_STAGE2,
+	XCLBIN_TANDEM_STAGE2_WITH_PR,
+	XCLBIN_HW_EMU,
+	XCLBIN_SW_EMU,
+	XCLBIN_MODE_MAX
+};
+
+enum axlf_section_kind {
+	BITSTREAM = 0,
+	CLEARING_BITSTREAM,
+	EMBEDDED_METADATA,
+	FIRMWARE,
+	DEBUG_DATA,
+	SCHED_FIRMWARE,
+	MEM_TOPOLOGY,
+	CONNECTIVITY,
+	IP_LAYOUT,
+	DEBUG_IP_LAYOUT,
+	DESIGN_CHECK_POINT,
+	CLOCK_FREQ_TOPOLOGY,
+	MCS,
+	BMC,
+	BUILD_METADATA,
+	KEYVALUE_METADATA,
+	USER_METADATA,
+	DNA_CERTIFICATE,
+	PDI,
+	BITSTREAM_PARTIAL_PDI,
+	PARTITION_METADATA,
+	EMULATION_DATA,
+	SYSTEM_METADATA,
+	SOFT_KERNEL,
+	ASK_FLASH,
+	AIE_METADATA,
+	ASK_GROUP_TOPOLOGY,
+	ASK_GROUP_CONNECTIVITY
+};
+
+enum MEM_TYPE {
+	MEM_DDR3,
+	MEM_DDR4,
+	MEM_DRAM,
+	MEM_STREAMING,
+	MEM_PREALLOCATED_GLOB,
+	MEM_ARE,
+	MEM_HBM,
+	MEM_BRAM,
+	MEM_URAM,
+	MEM_STREAMING_CONNECTION
+};
+
+enum IP_TYPE {
+	IP_MB = 0,
+	IP_KERNEL,
+	IP_DNASC,
+	IP_DDR4_CONTROLLER,
+	IP_MEM_DDR4,
+	IP_MEM_HBM
+};
+
+struct axlf_section_header {
+	uint32_t m_sectionKind;		    /* Section type */
+	char m_sectionName[16];		    /* Examples: "stage2", "clear1", */
+					    /* "clear2", "ocl1", "ocl2, */
+					    /* "ublaze", "sched" */
+	uint64_t m_sectionOffset;	    /* File offset of section data */
+	uint64_t m_sectionSize;		    /* Size of section data */
+};
+
+struct axlf_header {
+	uint64_t m_length;		    /* Total size of the xclbin file */
+	uint64_t m_timeStamp;		    /* Number of seconds since epoch */
+					    /* when xclbin was created */
+	uint64_t m_featureRomTimeStamp;	    /* TimeSinceEpoch of the featureRom */
+	uint16_t m_versionPatch;	    /* Patch Version */
+	uint8_t m_versionMajor;		    /* Major Version - Version: 2.1.0*/
+	uint8_t m_versionMinor;		    /* Minor Version */
+	uint32_t m_mode;		    /* XCLBIN_MODE */
+	union {
+		struct {
+			uint64_t m_platformId;	/* 64 bit platform ID: */
+					/* vendor-device-subvendor-subdev */
+			uint64_t m_featureId;	/* 64 bit feature id */
+		} rom;
+		unsigned char rom_uuid[16];	/* feature ROM UUID for which */
+						/* this xclbin was generated */
+	};
+	unsigned char m_platformVBNV[64];	/* e.g. */
+		/* xilinx:xil-accel-rd-ku115:4ddr-xpr:3.4: null terminated */
+	union {
+		char m_next_axlf[16];		/* Name of next xclbin file */
+						/* in the daisy chain */
+		uuid_t uuid;			/* uuid of this xclbin*/
+	};
+	char m_debug_bin[16];			/* Name of binary with debug */
+						/* information */
+	uint32_t m_numSections;			/* Number of section headers */
+};
+
+struct axlf {
+	char m_magic[8];			/* Should be "xclbin2\0"  */
+	int32_t m_signature_length;		/* Length of the signature. */
+						/* -1 indicates no signature */
+	unsigned char reserved[28];		/* Note: Initialized to 0xFFs */
+
+	unsigned char m_keyBlock[256];		/* Signature for validation */
+						/* of binary */
+	uint64_t m_uniqueId;			/* axlf's uniqueId, use it to */
+						/* skip redownload etc */
+	struct axlf_header m_header;		/* Inline header */
+	struct axlf_section_header m_sections[1];   /* One or more section */
+						    /* headers follow */
+};
+
+/* bitstream information */
+struct xlnx_bitstream {
+	uint8_t m_freq[8];
+	char bits[1];
+};
+
+/****	MEMORY TOPOLOGY SECTION ****/
+struct mem_data {
+	uint8_t m_type; /* enum corresponding to mem_type. */
+	uint8_t m_used; /* if 0 this bank is not present */
+	union {
+		uint64_t m_size; /* if mem_type DDR, then size in KB; */
+		uint64_t route_id; /* if streaming then "route_id" */
+	};
+	union {
+		uint64_t m_base_address;/* if DDR then the base address; */
+		uint64_t flow_id; /* if streaming then "flow id" */
+	};
+	unsigned char m_tag[16]; /* DDR: BANK0,1,2,3, has to be null */
+			/* terminated; if streaming then stream0, 1 etc */
+};
+
+struct mem_topology {
+	int32_t m_count; /* Number of mem_data */
+	struct mem_data m_mem_data[1]; /* Should be sorted on mem_type */
+};
+
+/****	CONNECTIVITY SECTION ****/
+/* Connectivity of each argument of Kernel. It will be in terms of argument
+ * index associated. For associating kernel instances with arguments and
+ * banks, start at the connectivity section. Using the m_ip_layout_index
+ * access the ip_data.m_name. Now we can associate this kernel instance
+ * with its original kernel name and get the connectivity as well. This
+ * enables us to form related groups of kernel instances.
+ */
+
+struct connection {
+	int32_t arg_index; /* From 0 to n, may not be contiguous as scalars */
+			   /* skipped */
+	int32_t m_ip_layout_index; /* index into the ip_layout section. */
+			   /* ip_layout.m_ip_data[index].m_type == IP_KERNEL */
+	int32_t mem_data_index; /* index of the m_mem_data . Flag error is */
+				/* m_used false. */
+};
+
+struct connectivity {
+	int32_t m_count;
+	struct connection m_connection[1];
+};
+
+/****	IP_LAYOUT SECTION ****/
+
+/* IP Kernel */
+#define IP_INT_ENABLE_MASK	  0x0001
+#define IP_INTERRUPT_ID_MASK  0x00FE
+#define IP_INTERRUPT_ID_SHIFT 0x1
+
+enum IP_CONTROL {
+	AP_CTRL_HS = 0,
+	AP_CTRL_CHAIN = 1,
+	AP_CTRL_NONE = 2,
+	AP_CTRL_ME = 3,
+	ACCEL_ADAPTER = 4
+};
+
+#define IP_CONTROL_MASK	 0xFF00
+#define IP_CONTROL_SHIFT 0x8
+
+/* IPs on AXI lite - their types, names, and base addresses.*/
+struct ip_data {
+	uint32_t m_type; /* map to IP_TYPE enum */
+	union {
+		uint32_t properties; /* Default: 32-bits to indicate ip */
+				     /* specific property. */
+		/* m_type: IP_KERNEL
+		 *	    m_int_enable   : Bit  - 0x0000_0001;
+		 *	    m_interrupt_id : Bits - 0x0000_00FE;
+		 *	    m_ip_control   : Bits = 0x0000_FF00;
+		 */
+		struct {		 /* m_type: IP_MEM_* */
+			uint16_t m_index;
+			uint8_t m_pc_index;
+			uint8_t unused;
+		} indices;
+	};
+	uint64_t m_base_address;
+	uint8_t m_name[64]; /* eg Kernel name corresponding to KERNEL */
+			    /* instance, can embed CU name in future. */
+};
+
+struct ip_layout {
+	int32_t m_count;
+	struct ip_data m_ip_data[1]; /* All the ip_data needs to be sorted */
+				     /* by m_base_address. */
+};
+
+/*** Debug IP section layout ****/
+enum DEBUG_IP_TYPE {
+	UNDEFINED = 0,
+	LAPC,
+	ILA,
+	AXI_MM_MONITOR,
+	AXI_TRACE_FUNNEL,
+	AXI_MONITOR_FIFO_LITE,
+	AXI_MONITOR_FIFO_FULL,
+	ACCEL_MONITOR,
+	AXI_STREAM_MONITOR,
+	AXI_STREAM_PROTOCOL_CHECKER,
+	TRACE_S2MM,
+	AXI_DMA,
+	TRACE_S2MM_FULL
+};
+
+struct debug_ip_data {
+	uint8_t m_type; /* type of enum DEBUG_IP_TYPE */
+	uint8_t m_index_lowbyte;
+	uint8_t m_properties;
+	uint8_t m_major;
+	uint8_t m_minor;
+	uint8_t m_index_highbyte;
+	uint8_t m_reserved[2];
+	uint64_t m_base_address;
+	char	m_name[128];
+};
+
+struct debug_ip_layout {
+	uint16_t m_count;
+	struct debug_ip_data m_debug_ip_data[1];
+};
+
+/* Supported clock frequency types */
+enum CLOCK_TYPE {
+	CT_UNUSED = 0,			   /* Initialized value */
+	CT_DATA	  = 1,			   /* Data clock */
+	CT_KERNEL = 2,			   /* Kernel clock */
+	CT_SYSTEM = 3			   /* System Clock */
+};
+
+/* Clock Frequency Entry */
+struct clock_freq {
+	uint16_t m_freq_Mhz;		   /* Frequency in MHz */
+	uint8_t m_type;			   /* Clock type (enum CLOCK_TYPE) */
+	uint8_t m_unused[5];		   /* Not used - padding */
+	char m_name[128];		   /* Clock Name */
+};
+
+/* Clock frequency section */
+struct clock_freq_topology {
+	int16_t m_count;		   /* Number of entries */
+	struct clock_freq m_clock_freq[1]; /* Clock array */
+};
+
+/* Supported MCS file types */
+enum MCS_TYPE {
+	MCS_UNKNOWN = 0,		   /* Initialized value */
+	MCS_PRIMARY = 1,		   /* The primary mcs file data */
+	MCS_SECONDARY = 2,		   /* The secondary mcs file data */
+};
+
+/* One chunk of MCS data */
+struct mcs_chunk {
+	uint8_t m_type;			   /* MCS data type */
+	uint8_t m_unused[7];		   /* padding */
+	uint64_t m_offset;		   /* data offset from the start of */
+					   /* the section */
+	uint64_t m_size;		   /* data size */
+};
+
+/* MCS data section */
+struct mcs {
+	int8_t m_count;			   /* Number of chunks */
+	int8_t m_unused[7];		   /* padding */
+	struct mcs_chunk m_chunk[1];	   /* MCS chunks followed by data */
+};
+
+/* bmc data section */
+struct bmc {
+	uint64_t m_offset;		   /* data offset from the start of */
+					   /* the section */
+	uint64_t m_size;		   /* data size (bytes) */
+	char m_image_name[64];		   /* Name of the image */
+					   /* (e.g., MSP432P401R) */
+	char m_device_name[64];		   /* Device ID	(e.g., VCU1525)	 */
+	char m_version[64];
+	char m_md5value[33];		   /* MD5 Expected Value */
+				/* (e.g., 56027182079c0bd621761b7dab5a27ca)*/
+	char m_padding[7];		   /* Padding */
+};
+
+/* soft kernel data section, used by classic driver */
+struct soft_kernel {
+	/** Prefix Syntax:
+	 *  mpo - member, pointer, offset
+	 *  This variable represents a zero terminated string
+	 *  that is offseted from the beginning of the section.
+	 *  The pointer to access the string is initialized as follows:
+	 *  char * pCharString = (address_of_section) + (mpo value)
+	 */
+	uint32_t mpo_name;	   /* Name of the soft kernel */
+	uint32_t m_image_offset;   /* Image offset */
+	uint32_t m_image_size;	   /* Image size */
+	uint32_t mpo_version;	   /* Version */
+	uint32_t mpo_md5_value;	   /* MD5 checksum */
+	uint32_t mpo_symbol_name;  /* Symbol name */
+	uint32_t m_num_instances;  /* Number of instances */
+	uint8_t padding[36];	   /* Reserved for future use */
+	uint8_t reservedExt[16];   /* Reserved for future extended data */
+};
+
+enum CHECKSUM_TYPE {
+	CST_UNKNOWN = 0,
+	CST_SDBM = 1,
+	CST_LAST
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
-- 
2.18.4