new file mode 100644
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2015 - 2023 Intel Corporation
+
+#include <linux/bitfield.h>
+#include <linux/dma-mapping.h>
+
+#include "ipu6.h"
+#include "ipu6-bus.h"
+#include "ipu6-cpd.h"
+
+/* 15 entries + header*/
+#define MAX_PKG_DIR_ENT_CNT 16
+/* 2 qword per entry/header */
+#define PKG_DIR_ENT_LEN 2
+/* PKG_DIR size in bytes */
+#define PKG_DIR_SIZE ((MAX_PKG_DIR_ENT_CNT) * \
+ (PKG_DIR_ENT_LEN) * sizeof(u64))
+/* _IUPKDR_ */
+#define PKG_DIR_HDR_MARK 0x5f4955504b44525f
+
+/* $CPD */
+#define CPD_HDR_MARK 0x44504324
+
+#define MAX_MANIFEST_SIZE (SZ_2K * sizeof(u32))
+#define MAX_METADATA_SIZE SZ_64K
+
+#define MAX_COMPONENT_ID 127
+#define MAX_COMPONENT_VERSION 0xffff
+
+#define MANIFEST_IDX 0
+#define METADATA_IDX 1
+#define MODULEDATA_IDX 2
+/*
+ * PKG_DIR Entry (type == id)
+ * 63:56 55 54:48 47:32 31:24 23:0
+ * Rsvd Rsvd Type Version Rsvd Size
+ */
+#define PKG_DIR_SIZE_MASK GENMASK(23, 0)
+#define PKG_DIR_VERSION_MASK GENMASK(47, 32)
+#define PKG_DIR_TYPE_MASK GENMASK(54, 48)
+
+static inline const struct ipu6_cpd_ent *ipu6_cpd_get_entry(const void *cpd,
+ u8 idx)
+{
+ const struct ipu6_cpd_hdr *cpd_hdr = cpd;
+ const struct ipu6_cpd_ent *ent;
+
+ ent = (const struct ipu6_cpd_ent *)((const u8 *)cpd + cpd_hdr->hdr_len);
+ return ent + idx;
+}
+
+#define ipu6_cpd_get_manifest(cpd) ipu6_cpd_get_entry(cpd, MANIFEST_IDX)
+#define ipu6_cpd_get_metadata(cpd) ipu6_cpd_get_entry(cpd, METADATA_IDX)
+#define ipu6_cpd_get_moduledata(cpd) ipu6_cpd_get_entry(cpd, MODULEDATA_IDX)
+
+static const struct ipu6_cpd_metadata_cmpnt_hdr *
+ipu6_cpd_metadata_get_cmpnt(struct ipu6_device *isp, const void *metadata,
+ unsigned int metadata_size, u8 idx)
+{
+ size_t extn_size = sizeof(struct ipu6_cpd_metadata_extn);
+ size_t cmpnt_count = metadata_size - extn_size;
+
+ cmpnt_count = div_u64(cmpnt_count, isp->cpd_metadata_cmpnt_size);
+
+ if (idx > MAX_COMPONENT_ID || idx >= cmpnt_count) {
+ dev_err(&isp->pdev->dev, "Component index out of range (%d)\n",
+ idx);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return metadata + extn_size + idx * isp->cpd_metadata_cmpnt_size;
+}
+
+static u32 ipu6_cpd_metadata_cmpnt_version(struct ipu6_device *isp,
+ const void *metadata,
+ unsigned int metadata_size, u8 idx)
+{
+ const struct ipu6_cpd_metadata_cmpnt_hdr *cmpnt =
+ ipu6_cpd_metadata_get_cmpnt(isp, metadata, metadata_size, idx);
+
+ if (IS_ERR(cmpnt))
+ return PTR_ERR(cmpnt);
+
+ return cmpnt->ver;
+}
+
+static int ipu6_cpd_metadata_get_cmpnt_id(struct ipu6_device *isp,
+ const void *metadata,
+ unsigned int metadata_size, u8 idx)
+{
+ const struct ipu6_cpd_metadata_cmpnt_hdr *cmpnt =
+ ipu6_cpd_metadata_get_cmpnt(isp, metadata,
+ metadata_size, idx);
+
+ if (IS_ERR(cmpnt))
+ return PTR_ERR(cmpnt);
+
+ return cmpnt->id;
+}
+
+static int ipu6_cpd_parse_module_data(struct ipu6_device *isp,
+ const void *module_data,
+ unsigned int module_data_size,
+ dma_addr_t dma_addr_module_data,
+ u64 *pkg_dir, const void *metadata,
+ unsigned int metadata_size)
+{
+ const struct ipu6_cpd_module_data_hdr *module_data_hdr;
+ const struct ipu6_cpd_hdr *dir_hdr;
+ const struct ipu6_cpd_ent *dir_ent;
+ unsigned int i;
+ u8 len;
+
+ if (!module_data)
+ return -EINVAL;
+
+ module_data_hdr = module_data;
+ dir_hdr = module_data + module_data_hdr->hdr_len;
+ len = dir_hdr->hdr_len;
+ dir_ent = (const struct ipu6_cpd_ent *)(((u8 *)dir_hdr) + len);
+
+ pkg_dir[0] = PKG_DIR_HDR_MARK;
+ /* pkg_dir entry count = component count + pkg_dir header */
+ pkg_dir[1] = dir_hdr->ent_cnt + 1;
+
+ for (i = 0; i < dir_hdr->ent_cnt; i++, dir_ent++) {
+ u64 *p = &pkg_dir[PKG_DIR_ENT_LEN * (1 + i)];
+ int ver, id;
+
+ *p++ = dma_addr_module_data + dir_ent->offset;
+
+ id = ipu6_cpd_metadata_get_cmpnt_id(isp, metadata,
+ metadata_size, i);
+
+ if (id < 0 || id > MAX_COMPONENT_ID) {
+ dev_err(&isp->pdev->dev, "Invalid CPD component id\n");
+ return -EINVAL;
+ }
+
+ ver = ipu6_cpd_metadata_cmpnt_version(isp, metadata,
+ metadata_size, i);
+
+ if (ver < 0 || ver > MAX_COMPONENT_VERSION) {
+ dev_err(&isp->pdev->dev,
+ "Invalid CPD component version\n");
+ return -EINVAL;
+ }
+
+ *p = FIELD_PREP(PKG_DIR_SIZE_MASK, dir_ent->len) |
+ FIELD_PREP(PKG_DIR_TYPE_MASK, id) |
+ FIELD_PREP(PKG_DIR_VERSION_MASK, ver);
+ }
+
+ return 0;
+}
+
+int ipu6_cpd_create_pkg_dir(struct ipu6_bus_device *adev, const void *src)
+{
+ dma_addr_t dma_addr_src = sg_dma_address(adev->fw_sgt.sgl);
+ const struct ipu6_cpd_ent *ent, *man_ent, *met_ent;
+ struct device *dev = &adev->auxdev.dev;
+ struct ipu6_device *isp = adev->isp;
+ unsigned int man_sz, met_sz;
+ void *pkg_dir_pos;
+ int ret;
+
+ man_ent = ipu6_cpd_get_manifest(src);
+ man_sz = man_ent->len;
+
+ met_ent = ipu6_cpd_get_metadata(src);
+ met_sz = met_ent->len;
+
+ adev->pkg_dir_size = PKG_DIR_SIZE + man_sz + met_sz;
+ adev->pkg_dir = dma_alloc_attrs(dev, adev->pkg_dir_size,
+ &adev->pkg_dir_dma_addr, GFP_KERNEL, 0);
+ if (!adev->pkg_dir)
+ return -ENOMEM;
+
+ /*
+ * pkg_dir entry/header:
+ * qword | 63:56 | 55 | 54:48 | 47:32 | 31:24 | 23:0
+ * N Address/Offset/"_IUPKDR_"
+ * N + 1 | rsvd | rsvd | type | ver | rsvd | size
+ *
+ * We can ignore other fields that size in N + 1 qword as they
+ * are 0 anyway. Just setting size for now.
+ */
+
+ ent = ipu6_cpd_get_moduledata(src);
+
+ ret = ipu6_cpd_parse_module_data(isp, src + ent->offset,
+ ent->len, dma_addr_src + ent->offset,
+ adev->pkg_dir, src + met_ent->offset,
+ met_ent->len);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Failed to parse module data\n");
+ dma_free_attrs(dev, adev->pkg_dir_size,
+ adev->pkg_dir, adev->pkg_dir_dma_addr, 0);
+ return -EINVAL;
+ }
+
+ /* Copy manifest after pkg_dir */
+ pkg_dir_pos = adev->pkg_dir + PKG_DIR_ENT_LEN * MAX_PKG_DIR_ENT_CNT;
+ memcpy(pkg_dir_pos, src + man_ent->offset, man_sz);
+
+ /* Copy metadata after manifest */
+ pkg_dir_pos += man_sz;
+ memcpy(pkg_dir_pos, src + met_ent->offset, met_sz);
+
+ dma_sync_single_range_for_device(dev, adev->pkg_dir_dma_addr,
+ 0, adev->pkg_dir_size, DMA_TO_DEVICE);
+
+ return 0;
+}
+EXPORT_SYMBOL_NS_GPL(ipu6_cpd_create_pkg_dir, INTEL_IPU6);
+
+void ipu6_cpd_free_pkg_dir(struct ipu6_bus_device *adev)
+{
+ dma_free_attrs(&adev->auxdev.dev, adev->pkg_dir_size, adev->pkg_dir,
+ adev->pkg_dir_dma_addr, 0);
+}
+EXPORT_SYMBOL_NS_GPL(ipu6_cpd_free_pkg_dir, INTEL_IPU6);
+
+static int ipu6_cpd_validate_cpd(struct ipu6_device *isp, const void *cpd,
+ unsigned long cpd_size,
+ unsigned long data_size)
+{
+ const struct ipu6_cpd_hdr *cpd_hdr = cpd;
+ const struct ipu6_cpd_ent *ent;
+ unsigned int i;
+ u8 len;
+
+ len = cpd_hdr->hdr_len;
+
+ /* Ensure cpd hdr is within moduledata */
+ if (cpd_size < len) {
+ dev_err(&isp->pdev->dev, "Invalid CPD moduledata size\n");
+ return -EINVAL;
+ }
+
+ /* Sanity check for CPD header */
+ if ((cpd_size - len) / sizeof(*ent) < cpd_hdr->ent_cnt) {
+ dev_err(&isp->pdev->dev, "Invalid CPD header\n");
+ return -EINVAL;
+ }
+
+ /* Ensure that all entries are within moduledata */
+ ent = (const struct ipu6_cpd_ent *)(((const u8 *)cpd_hdr) + len);
+ for (i = 0; i < cpd_hdr->ent_cnt; i++, ent++) {
+ if (data_size < ent->offset ||
+ data_size - ent->offset < ent->len) {
+ dev_err(&isp->pdev->dev, "Invalid CPD entry (%d)\n", i);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int ipu6_cpd_validate_moduledata(struct ipu6_device *isp,
+ const void *moduledata,
+ u32 moduledata_size)
+{
+ const struct ipu6_cpd_module_data_hdr *mod_hdr = moduledata;
+ int ret;
+
+ /* Ensure moduledata hdr is within moduledata */
+ if (moduledata_size < sizeof(*mod_hdr) ||
+ moduledata_size < mod_hdr->hdr_len) {
+ dev_err(&isp->pdev->dev, "Invalid CPD moduledata size\n");
+ return -EINVAL;
+ }
+
+ dev_info(&isp->pdev->dev, "FW version: %x\n", mod_hdr->fw_pkg_date);
+ ret = ipu6_cpd_validate_cpd(isp, moduledata + mod_hdr->hdr_len,
+ moduledata_size - mod_hdr->hdr_len,
+ moduledata_size);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Invalid CPD in moduledata\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ipu6_cpd_validate_metadata(struct ipu6_device *isp,
+ const void *metadata, u32 meta_size)
+{
+ const struct ipu6_cpd_metadata_extn *extn = metadata;
+
+ /* Sanity check for metadata size */
+ if (meta_size < sizeof(*extn) || meta_size > MAX_METADATA_SIZE) {
+ dev_err(&isp->pdev->dev, "Invalid CPD metadata\n");
+ return -EINVAL;
+ }
+
+ /* Validate extension and image types */
+ if (extn->extn_type != IPU6_CPD_METADATA_EXTN_TYPE_IUNIT ||
+ extn->img_type != IPU6_CPD_METADATA_IMAGE_TYPE_MAIN_FIRMWARE) {
+ dev_err(&isp->pdev->dev,
+ "Invalid CPD metadata descriptor img_type (%d)\n",
+ extn->img_type);
+ return -EINVAL;
+ }
+
+ /* Validate metadata size multiple of metadata components */
+ if ((meta_size - sizeof(*extn)) % isp->cpd_metadata_cmpnt_size) {
+ dev_err(&isp->pdev->dev, "Invalid CPD metadata size\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int ipu6_cpd_validate_cpd_file(struct ipu6_device *isp, const void *cpd_file,
+ unsigned long cpd_file_size)
+{
+ const struct ipu6_cpd_hdr *hdr = cpd_file;
+ const struct ipu6_cpd_ent *ent;
+ int ret;
+
+ ret = ipu6_cpd_validate_cpd(isp, cpd_file, cpd_file_size,
+ cpd_file_size);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Invalid CPD in file\n");
+ return -EINVAL;
+ }
+
+ /* Check for CPD file marker */
+ if (hdr->hdr_mark != CPD_HDR_MARK) {
+ dev_err(&isp->pdev->dev, "Invalid CPD header\n");
+ return -EINVAL;
+ }
+
+ /* Sanity check for manifest size */
+ ent = ipu6_cpd_get_manifest(cpd_file);
+ if (ent->len > MAX_MANIFEST_SIZE) {
+ dev_err(&isp->pdev->dev, "Invalid CPD manifest size\n");
+ return -EINVAL;
+ }
+
+ /* Validate metadata */
+ ent = ipu6_cpd_get_metadata(cpd_file);
+ ret = ipu6_cpd_validate_metadata(isp, cpd_file + ent->offset, ent->len);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Invalid CPD metadata\n");
+ return ret;
+ }
+
+ /* Validate moduledata */
+ ent = ipu6_cpd_get_moduledata(cpd_file);
+ ret = ipu6_cpd_validate_moduledata(isp, cpd_file + ent->offset,
+ ent->len);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Invalid CPD moduledata\n");
+ return ret;
+ }
+
+ return 0;
+}
new file mode 100644
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (C) 2015 - 2023 Intel Corporation */
+
+#ifndef IPU6_CPD_H
+#define IPU6_CPD_H
+
+#define IPU6_CPD_SIZE_OF_FW_ARCH_VERSION 7
+#define IPU6_CPD_SIZE_OF_SYSTEM_VERSION 11
+#define IPU6_CPD_SIZE_OF_COMPONENT_NAME 12
+
+#define IPU6_CPD_METADATA_EXTN_TYPE_IUNIT 0x10
+
+#define IPU6_CPD_METADATA_IMAGE_TYPE_RESERVED 0
+#define IPU6_CPD_METADATA_IMAGE_TYPE_BOOTLOADER 1
+#define IPU6_CPD_METADATA_IMAGE_TYPE_MAIN_FIRMWARE 2
+
+#define IPU6_CPD_PKG_DIR_PSYS_SERVER_IDX 0
+#define IPU6_CPD_PKG_DIR_ISYS_SERVER_IDX 1
+
+#define IPU6_CPD_PKG_DIR_CLIENT_PG_TYPE 3
+
+#define IPU6_CPD_METADATA_HASH_KEY_SIZE 48
+#define IPU6SE_CPD_METADATA_HASH_KEY_SIZE 32
+
+struct ipu6_cpd_module_data_hdr {
+ u32 hdr_len;
+ u32 endian;
+ u32 fw_pkg_date;
+ u32 hive_sdk_date;
+ u32 compiler_date;
+ u32 target_platform_type;
+ u8 sys_ver[IPU6_CPD_SIZE_OF_SYSTEM_VERSION];
+ u8 fw_arch_ver[IPU6_CPD_SIZE_OF_FW_ARCH_VERSION];
+ u8 rsvd[2];
+} __packed;
+
+/*
+ * ipu6_cpd_hdr structure updated as the chksum and
+ * sub_partition_name is unused on host side
+ * CSE layout version 1.6 for IPU6SE (hdr_len = 0x10)
+ * CSE layout version 1.7 for IPU6 (hdr_len = 0x14)
+ */
+struct ipu6_cpd_hdr {
+ u32 hdr_mark;
+ u32 ent_cnt;
+ u8 hdr_ver;
+ u8 ent_ver;
+ u8 hdr_len;
+} __packed;
+
+struct ipu6_cpd_ent {
+ u8 name[IPU6_CPD_SIZE_OF_COMPONENT_NAME];
+ u32 offset;
+ u32 len;
+ u8 rsvd[4];
+} __packed;
+
+struct ipu6_cpd_metadata_cmpnt_hdr {
+ u32 id;
+ u32 size;
+ u32 ver;
+} __packed;
+
+struct ipu6_cpd_metadata_cmpnt {
+ struct ipu6_cpd_metadata_cmpnt_hdr hdr;
+ u8 sha2_hash[IPU6_CPD_METADATA_HASH_KEY_SIZE];
+ u32 entry_point;
+ u32 icache_base_offs;
+ u8 attrs[16];
+} __packed;
+
+struct ipu6se_cpd_metadata_cmpnt {
+ struct ipu6_cpd_metadata_cmpnt_hdr hdr;
+ u8 sha2_hash[IPU6SE_CPD_METADATA_HASH_KEY_SIZE];
+ u32 entry_point;
+ u32 icache_base_offs;
+ u8 attrs[16];
+} __packed;
+
+struct ipu6_cpd_metadata_extn {
+ u32 extn_type;
+ u32 len;
+ u32 img_type;
+ u8 rsvd[16];
+} __packed;
+
+struct ipu6_cpd_client_pkg_hdr {
+ u32 prog_list_offs;
+ u32 prog_list_size;
+ u32 prog_desc_offs;
+ u32 prog_desc_size;
+ u32 pg_manifest_offs;
+ u32 pg_manifest_size;
+ u32 prog_bin_offs;
+ u32 prog_bin_size;
+} __packed;
+
+int ipu6_cpd_create_pkg_dir(struct ipu6_bus_device *adev, const void *src);
+void ipu6_cpd_free_pkg_dir(struct ipu6_bus_device *adev);
+int ipu6_cpd_validate_cpd_file(struct ipu6_device *isp, const void *cpd_file,
+ unsigned long cpd_file_size);
+#endif /* IPU6_CPD_H */