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0061-media-intel-ipu4-ici-driver-base-code-WW43-firmware-.patch
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0061-media-intel-ipu4-ici-driver-base-code-WW43-firmware-.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: "Yew, Chang Ching" <[email protected]>
Date: Tue, 23 Oct 2018 13:23:05 +0800
Subject: [PATCH] media: intel-ipu4: ici driver base code; WW43 firmware
f61e455.
Base code for IPU ICI driver (Image Capture Interface).
These patches add input system driver for Camera IPU interface.
Squash of following patches from
https://github.com/intel/linux-intel-lts/tree/4.14/base/drivers/media/pci/intel/ici/
153823 media: ici: Remove set_pipeline_format when setting stream format
e54253 media-intel-ipu4: ICI: Use standard values for memory type enums
ef18ca media: intel-ipu4: ici: YUYV format support for HDMI
ec4a1c Add dependencies in Kconfig for ICI
f50ea8 ici: Change fourcc value for ICI_FORMAT_RGB888
9f77cd media: ici: fix for mem-leak pointed out by KW
e6c0df ici: Check null pointer to avoid null pointer dereferencing
79f804 media:intel-ipu: dma functions for ici driver
8c08f8 media: intel-ipu: ICI camera driver WW16 2018 FW version: 20180412
Change-Id: I7a5bf16cfccc11ab9a0e4d32fdb31f0355e8c50a
Signed-off-by: Yew, Chang Ching <[email protected]>
---
drivers/media/pci/intel/Kconfig | 33 +
drivers/media/pci/intel/Makefile | 13 +-
drivers/media/pci/intel/ici-fw-isys.h | 25 +
drivers/media/pci/intel/ici/Makefile | 73 +
drivers/media/pci/intel/ici/ici-dma.c | 417 +++++
.../media/pci/intel/ici/ici-isys-csi2-be.c | 280 ++++
.../media/pci/intel/ici/ici-isys-csi2-be.h | 36 +
drivers/media/pci/intel/ici/ici-isys-csi2.c | 532 ++++++
drivers/media/pci/intel/ici/ici-isys-csi2.h | 156 ++
.../media/pci/intel/ici/ici-isys-frame-buf.c | 950 +++++++++++
.../media/pci/intel/ici/ici-isys-frame-buf.h | 139 ++
.../pci/intel/ici/ici-isys-pipeline-device.c | 493 ++++++
.../pci/intel/ici/ici-isys-pipeline-device.h | 62 +
.../media/pci/intel/ici/ici-isys-pipeline.c | 174 ++
.../media/pci/intel/ici/ici-isys-pipeline.h | 98 ++
.../pci/intel/ici/ici-isys-stream-device.c | 397 +++++
.../pci/intel/ici/ici-isys-stream-device.h | 58 +
drivers/media/pci/intel/ici/ici-isys-stream.c | 1450 +++++++++++++++++
drivers/media/pci/intel/ici/ici-isys-stream.h | 85 +
drivers/media/pci/intel/ici/ici-isys-subdev.c | 548 +++++++
drivers/media/pci/intel/ici/ici-isys-subdev.h | 110 ++
drivers/media/pci/intel/ici/ici-isys-tpg.c | 214 +++
drivers/media/pci/intel/ici/ici-isys-tpg.h | 47 +
drivers/media/pci/intel/ici/ici-isys.c | 1367 ++++++++++++++++
drivers/media/pci/intel/ici/ici-isys.h | 212 +++
.../media/pci/intel/ici/libintel-ipu4_ici.c | 403 +++++
include/media/ici.h | 141 ++
include/uapi/linux/ici.h | 203 +++
28 files changed, 8714 insertions(+), 2 deletions(-)
create mode 100644 drivers/media/pci/intel/ici-fw-isys.h
create mode 100644 drivers/media/pci/intel/ici/Makefile
create mode 100644 drivers/media/pci/intel/ici/ici-dma.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-csi2-be.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-csi2-be.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys-csi2.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-csi2.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys-frame-buf.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-frame-buf.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys-pipeline-device.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-pipeline-device.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys-pipeline.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-pipeline.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys-stream-device.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-stream-device.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys-stream.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-stream.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys-subdev.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-subdev.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys-tpg.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys-tpg.h
create mode 100644 drivers/media/pci/intel/ici/ici-isys.c
create mode 100644 drivers/media/pci/intel/ici/ici-isys.h
create mode 100644 drivers/media/pci/intel/ici/libintel-ipu4_ici.c
create mode 100644 include/media/ici.h
create mode 100644 include/uapi/linux/ici.h
diff --git a/drivers/media/pci/intel/Kconfig b/drivers/media/pci/intel/Kconfig
index f9fcbc6c72b2..714a668d6a2d 100644
--- a/drivers/media/pci/intel/Kconfig
+++ b/drivers/media/pci/intel/Kconfig
@@ -57,3 +57,36 @@ config VIDEO_INTEL_IPU_WERROR
Recommended for driver developers only.
If in doubt, say "N".
+
+config VIDEO_INTEL_ICI
+ depends on VIDEO_INTEL_IPU
+ bool "Compile for ICI driver"
+ ---help---
+ If selected ICI driver will be compiled
+
+config VIDEO_INTEL_UOS
+ bool "Compile driver per UOS"
+ ---help---
+ If selected UOS driver components will be compiled
+
+config VIDEO_INTEL_IPU_ACRN
+ depends on X86_64
+ bool "Compile for virtio mediation"
+
+choice
+ prompt "Virtio driver type"
+ depends on VIDEO_INTEL_IPU_ACRN
+ default VIDEO_INTEL_IPU_VIRTIO_BE
+
+config VIDEO_INTEL_IPU_VIRTIO_BE
+ bool "Configure IPU4 as virtio backend"
+ depends on VBS
+ ---help---
+ Configuring IPU4 driver as virtio backend
+
+config VIDEO_INTEL_IPU_VIRTIO_FE
+ bool "Configure IPU4 as virtio frontend"
+ ---help---
+ Configuring IPU4 driver as virtio frontend
+
+endchoice
diff --git a/drivers/media/pci/intel/Makefile b/drivers/media/pci/intel/Makefile
index f26961842450..d46da91ce643 100644
--- a/drivers/media/pci/intel/Makefile
+++ b/drivers/media/pci/intel/Makefile
@@ -1,5 +1,11 @@
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2010 - 2018, Intel Corporation.
+#
+#
+# Makefile for the IPU3 cio2, ImGU and IPU4 drivers
+#
+
+obj-y += ipu3/
# force check the compile warning to make sure zero warnings
# note we may have build issue when gcc upgraded.
@@ -9,6 +15,9 @@ subdir-ccflags-y += $(call cc-disable-warning, implicit-fallthrough)
subdir-ccflags-y += $(call cc-disable-warning, missing-field-initializers)
subdir-ccflags-$(CONFIG_VIDEO_INTEL_IPU_WERROR) += -Werror
-obj-$(CONFIG_VIDEO_INTEL_IPU4) += ipu4/
+ifndef CONFIG_VIDEO_INTEL_ICI
+obj-$(CONFIG_VIDEO_INTEL_IPU4) += ipu4/
obj-$(CONFIG_VIDEO_INTEL_IPU4P) += ipu4/
-obj-y += ipu3/
+endif
+obj-$(CONFIG_VIDEO_INTEL_ICI) += ici/
+obj-$(CONFIG_VIDEO_INTEL_IPU_ACRN) += virtio/
diff --git a/drivers/media/pci/intel/ici-fw-isys.h b/drivers/media/pci/intel/ici-fw-isys.h
new file mode 100644
index 000000000000..afd7537da02b
--- /dev/null
+++ b/drivers/media/pci/intel/ici-fw-isys.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2018 Intel Corporation */
+
+#ifndef ICI_FW_ISYS_H
+#define ICI_FW_ISYS_H
+
+#include "ipu-fw-com.h"
+
+struct ici_isys;
+int ici_fw_isys_init(struct ici_isys *isys, unsigned int num_streams);
+int ici_fw_isys_close(struct ici_isys *isys);
+int ici_fw_isys_simple_cmd(struct ici_isys *isys,
+ const unsigned int stream_handle,
+ enum ipu_fw_isys_send_type send_type);
+int ici_fw_isys_complex_cmd(struct ici_isys *isys,
+ const unsigned int stream_handle,
+ void *cpu_mapped_buf,
+ dma_addr_t dma_mapped_buf,
+ size_t size, enum ipu_fw_isys_send_type send_type);
+int ici_fw_isys_send_proxy_token(struct ici_isys *isys,
+ unsigned int req_id,
+ unsigned int index,
+ unsigned int offset, u32 value);
+void ici_fw_isys_cleanup(struct ici_isys *isys);
+#endif
diff --git a/drivers/media/pci/intel/ici/Makefile b/drivers/media/pci/intel/ici/Makefile
new file mode 100644
index 000000000000..59a2561dcede
--- /dev/null
+++ b/drivers/media/pci/intel/ici/Makefile
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2010 - 2018, Intel Corporation.
+
+ifneq ($(EXTERNAL_BUILD), 1)
+srcpath := $(srctree)
+endif
+
+ifdef CONFIG_VIDEO_INTEL_ICI
+ccflags-y += -DHAS_DUAL_CMD_CTX_SUPPORT=0 -DIPU_VC_SUPPORT -DIPU_HAS_ISA -DIPU_PSYS_LEGACY -Wframe-larger-than=4096
+
+
+# work-around to re-use ipu4-css and libintel-ipu4_ici.c together when
+# compiling ICI-ISYS
+$(shell cp -r $(srcpath)/$(src)/../ipu4/ipu4-css/ $(srcpath)/$(src)/)
+$(shell cp -f $(srcpath)/$(src)/libintel-ipu4_ici.c $(srcpath)/$(src)/ipu4-css/libintel-ipu4.c)
+$(shell cp -f $(srcpath)/$(src)/../ipu4/ipu-platform-resources.h $(srcpath)/$(src)/)
+
+intel-ipu4-objs +=../ipu.o \
+ ../ipu-bus.o \
+ ici-dma.o \
+ ../ipu-buttress.o \
+ ../ipu-trace.o \
+ ../ipu-cpd.o \
+ ../ipu-fw-com.o \
+ ../ipu4/ipu4.o
+
+obj-$(CONFIG_VIDEO_INTEL_IPU) += intel-ipu4.o
+
+intel-ipu4-mmu-objs += ../ipu-mmu.o
+obj-$(CONFIG_VIDEO_INTEL_IPU) += intel-ipu4-mmu.o
+
+ici-isys-mod-objs += \
+ ici-isys.o \
+ ici-isys-csi2.o \
+ ici-isys-tpg.o \
+ ici-isys-csi2-be.o \
+ ici-isys-stream.o \
+ ici-isys-frame-buf.o \
+ ici-isys-subdev.o \
+ ici-isys-pipeline.o \
+ ici-isys-pipeline-device.o \
+ ici-isys-stream-device.o
+obj-$(CONFIG_VIDEO_INTEL_IPU) += ici-isys-mod.o
+
+intel-ipu4-psys-objs += ../ipu-psys.o \
+ ../ipu4/ipu4-resources.o \
+ ../ipu4/ipu4-psys.o \
+
+ifndef CONFIG_VIDEO_INTEL_IPU_FW_LIB
+intel-ipu4-psys-objs += ipu4-fw-resources.o \
+ ../ipu-fw-psys.o
+endif
+
+ifeq ($(CONFIG_COMPAT),y)
+intel-ipu4-psys-objs += ../ipu-psys-compat32.o
+endif
+
+obj-$(CONFIG_VIDEO_INTEL_IPU) += intel-ipu4-psys.o
+
+ifdef CONFIG_VIDEO_INTEL_IPU_FW_LIB
+include $(srcpath)/$(src)/ipu4-css/Makefile.isyslib
+include $(srcpath)/$(src)/ipu4-css/Makefile.psyslib
+endif
+
+subdir-ccflags-y += -I$(srcpath)/$(src)/../../../../../include/
+subdir-ccflags-y += -I$(srcpath)/$(src)/../
+subdir-ccflags-y += -I$(srcpath)/$(src)/../ipu4/
+subdir-ccflags-y += -I$(srcpath)/$(src)/
+subdir-ccflags-y += -I$(srcpath)/$(src)/ipu4-css
+
+ccflags-y += -DPARAMETER_INTERFACE_V2
+
+endif
diff --git a/drivers/media/pci/intel/ici/ici-dma.c b/drivers/media/pci/intel/ici/ici-dma.c
new file mode 100644
index 000000000000..da501a2e8744
--- /dev/null
+++ b/drivers/media/pci/intel/ici/ici-dma.c
@@ -0,0 +1,417 @@
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
+/*
+ * Copyright (C) 2018 Intel Corporation
+ */
+
+#include <asm/cacheflush.h>
+
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/gfp.h>
+#include <linux/highmem.h>
+#include <linux/iommu.h>
+#include <linux/iova.h>
+#include <linux/module.h>
+#include <linux/scatterlist.h>
+#include <linux/vmalloc.h>
+
+#include "ipu-dma.h"
+#include "ipu-mmu.h"
+
+static struct page **__intel_ipu4_dma_alloc(struct device *dev,
+ size_t buf_size,
+ gfp_t gfp,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ struct dma_attrs *attrs
+#else
+ unsigned long attrs
+#endif
+ )
+{
+ int num_pages = buf_size >> PAGE_SHIFT;
+ int array_size = num_pages * sizeof(struct page *);
+ struct page **page_list;
+ int i = 0;
+
+ if (array_size <= PAGE_SIZE)
+ page_list = kzalloc(array_size, GFP_KERNEL);
+ else
+ page_list = vzalloc(array_size);
+ if (!page_list)
+ return NULL;
+
+ gfp |= __GFP_NOWARN;
+
+ while (num_pages) {
+ int j, order = __fls(num_pages);
+
+ page_list[i] = alloc_pages(gfp, order);
+ while (!page_list[i] && order)
+ page_list[i] = alloc_pages(gfp, --order);
+ if (!page_list[i])
+ goto error;
+
+ if (order) {
+ split_page(page_list[i], order);
+ j = 1 << order;
+ while (--j)
+ page_list[i + j] = page_list[i] + j;
+ }
+
+ i += 1 << order;
+ num_pages -= 1 << order;
+ }
+
+ return page_list;
+error:
+ while (i--)
+ if (page_list[i])
+ __free_pages(page_list[i], 0);
+ if (array_size <= PAGE_SIZE)
+ kfree(page_list);
+ else
+ vfree(page_list);
+ return NULL;
+}
+
+static int __intel_ipu4_dma_free(struct device *dev, struct page **page_list,
+ size_t buf_size,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ struct dma_attrs *attrs
+#else
+ unsigned long attrs
+#endif
+ )
+{
+ int num_pages = buf_size >> PAGE_SHIFT;
+ int array_size = num_pages * sizeof(struct page *);
+ int i;
+
+ for (i = 0; i < num_pages; i++) {
+ if (page_list[i]) {
+ __free_pages(page_list[i], 0);
+ }
+ }
+
+ if (array_size <= PAGE_SIZE)
+ kfree(page_list);
+ else
+ vfree(page_list);
+ return 0;
+}
+
+static void intel_ipu4_dma_sync_single_for_cpu(
+ struct device *dev, dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction dir)
+{
+ struct device *aiommu = to_ipu_bus_device(dev)->iommu;
+ struct ipu_mmu *mmu = dev_get_drvdata(aiommu);
+
+ clflush_cache_range(
+ phys_to_virt(iommu_iova_to_phys(
+ mmu->dmap->domain, dma_handle)), size);
+}
+
+static void intel_ipu4_dma_sync_sg_for_cpu(
+ struct device *dev, struct scatterlist *sglist, int nents,
+ enum dma_data_direction dir)
+{
+ struct device *aiommu = to_ipu_bus_device(dev)->iommu;
+ struct ipu_mmu *mmu = dev_get_drvdata(aiommu);
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(sglist, sg, nents, i) {
+ clflush_cache_range(
+ phys_to_virt(iommu_iova_to_phys(
+ mmu->dmap->domain,
+ sg_dma_address(sg))),
+ sg->length);
+ }
+}
+
+static void *intel_ipu4_dma_alloc(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ struct dma_attrs *attrs
+#else
+ unsigned long attrs
+#endif
+ )
+{
+ struct device *aiommu = to_ipu_bus_device(dev)->iommu;
+ struct ipu_mmu *mmu = dev_get_drvdata(aiommu);
+ struct page **pages;
+ struct iova *iova;
+ struct vm_struct *area;
+ int i;
+ int rval;
+
+ size = PAGE_ALIGN(size);
+
+ iova = alloc_iova(&mmu->dmap->iovad, size >> PAGE_SHIFT,
+ dma_get_mask(dev) >> PAGE_SHIFT, 0);
+ if (!iova)
+ return NULL;
+
+ pages = __intel_ipu4_dma_alloc(dev, size, gfp, attrs);
+ if (!pages)
+ goto out_free_iova;
+
+ for (i = 0; iova->pfn_lo + i <= iova->pfn_hi; i++) {
+ rval = iommu_map(mmu->dmap->domain,
+ (iova->pfn_lo + i) << PAGE_SHIFT,
+ page_to_phys(pages[i]), PAGE_SIZE, 0);
+ if (rval)
+ goto out_unmap;
+ }
+
+ area = __get_vm_area(size, 0, VMALLOC_START, VMALLOC_END);
+ if (!area)
+ goto out_unmap;
+
+ area->pages = pages;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
+ if (map_vm_area(area, PAGE_KERNEL, &pages))
+#else
+ if (map_vm_area(area, PAGE_KERNEL, pages))
+#endif
+ goto out_vunmap;
+
+ *dma_handle = iova->pfn_lo << PAGE_SHIFT;
+
+ mmu->tlb_invalidate(mmu);
+
+ return area->addr;
+
+out_vunmap:
+ vunmap(area->addr);
+
+out_unmap:
+ __intel_ipu4_dma_free(dev, pages, size, attrs);
+ for (i--; i >= 0; i--) {
+ iommu_unmap(mmu->dmap->domain, (iova->pfn_lo + i) << PAGE_SHIFT,
+ PAGE_SIZE);
+ }
+out_free_iova:
+ __free_iova(&mmu->dmap->iovad, iova);
+
+ return NULL;
+}
+
+static void intel_ipu4_dma_free(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ struct dma_attrs *attrs
+#else
+ unsigned long attrs
+#endif
+ )
+{
+ struct device *aiommu = to_ipu_bus_device(dev)->iommu;
+ struct ipu_mmu *mmu = dev_get_drvdata(aiommu);
+ struct vm_struct *area = find_vm_area(vaddr);
+ struct iova *iova = find_iova(&mmu->dmap->iovad,
+ dma_handle >> PAGE_SHIFT);
+
+ if (WARN_ON(!area))
+ return;
+
+ if (WARN_ON(!area->pages))
+ return;
+
+ BUG_ON(!iova);
+
+ size = PAGE_ALIGN(size);
+
+ vunmap(vaddr);
+
+ iommu_unmap(mmu->dmap->domain, iova->pfn_lo << PAGE_SHIFT,
+ (iova->pfn_hi - iova->pfn_lo + 1) << PAGE_SHIFT);
+
+ __intel_ipu4_dma_free(dev, area->pages, size, attrs);
+
+ __free_iova(&mmu->dmap->iovad, iova);
+
+ mmu->tlb_invalidate(mmu);
+}
+
+static int intel_ipu4_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *addr, dma_addr_t iova, size_t size,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ struct dma_attrs *attrs
+#else
+ unsigned long attrs
+#endif
+ )
+{
+ struct vm_struct *area = find_vm_area(addr);
+ size_t count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+ size_t i;
+
+ if (!area)
+ return -EFAULT;
+
+ if (vma->vm_start & ~PAGE_MASK)
+ return -EINVAL;
+
+ if (size > area->size)
+ return -EFAULT;
+
+ for (i = 0; i < count; i++)
+ vm_insert_page(vma, vma->vm_start + (i << PAGE_SHIFT),
+ area->pages[i]);
+
+ return 0;
+}
+
+static void intel_ipu4_dma_unmap_sg(struct device *dev,
+ struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ struct dma_attrs *attrs
+#else
+ unsigned long attrs
+#endif
+ )
+{
+ struct device *aiommu = to_ipu_bus_device(dev)->iommu;
+ struct ipu_mmu *mmu = dev_get_drvdata(aiommu);
+ struct iova *iova = find_iova(&mmu->dmap->iovad,
+ sg_dma_address(sglist) >> PAGE_SHIFT);
+
+ if (!nents)
+ return;
+
+ BUG_ON(!iova);
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+#else
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
+#endif
+ intel_ipu4_dma_sync_sg_for_cpu(dev, sglist, nents,
+ DMA_BIDIRECTIONAL);
+
+ iommu_unmap(mmu->dmap->domain, iova->pfn_lo << PAGE_SHIFT,
+ (iova->pfn_hi - iova->pfn_lo + 1) << PAGE_SHIFT);
+
+ mmu->tlb_invalidate(mmu);
+
+ __free_iova(&mmu->dmap->iovad, iova);
+}
+
+static int intel_ipu4_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ struct dma_attrs *attrs
+#else
+ unsigned long attrs
+#endif
+ )
+{
+ struct device *aiommu = to_ipu_bus_device(dev)->iommu;
+ struct ipu_mmu *mmu = dev_get_drvdata(aiommu);
+ struct scatterlist *sg;
+ struct iova *iova;
+ size_t size = 0;
+ uint32_t iova_addr;
+ int i;
+
+ for_each_sg(sglist, sg, nents, i)
+ size += PAGE_ALIGN(sg->length) >> PAGE_SHIFT;
+
+ dev_dbg(dev, "dmamap: mapping sg %d entries, %zu pages\n", nents, size);
+
+ iova = alloc_iova(&mmu->dmap->iovad, size,
+ dma_get_mask(dev) >> PAGE_SHIFT, 0);
+ if (!iova)
+ return 0;
+
+ dev_dbg(dev, "dmamap: iova low pfn %lu, high pfn %lu\n", iova->pfn_lo,
+ iova->pfn_hi);
+
+ iova_addr = iova->pfn_lo;
+
+ for_each_sg(sglist, sg, nents, i) {
+ int rval;
+
+ dev_dbg(dev,
+ "dmamap details: mapping entry %d: iova 0x%8.8x, \
+ physical 0x%16.16llx\n",
+ i, iova_addr << PAGE_SHIFT, page_to_phys(sg_page(sg)));
+ rval = iommu_map(mmu->dmap->domain, iova_addr << PAGE_SHIFT,
+ page_to_phys(sg_page(sg)),
+ PAGE_ALIGN(sg->length), 0);
+ if (rval)
+ goto out_fail;
+ sg_dma_address(sg) = iova_addr << PAGE_SHIFT;
+#ifdef CONFIG_NEED_SG_DMA_LENGTH
+ sg_dma_len(sg) = sg->length;
+#endif /* CONFIG_NEED_SG_DMA_LENGTH */
+
+ iova_addr += PAGE_ALIGN(sg->length) >> PAGE_SHIFT;
+ }
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+#else
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
+#endif
+ intel_ipu4_dma_sync_sg_for_cpu(dev, sglist, nents,
+ DMA_BIDIRECTIONAL);
+
+ mmu->tlb_invalidate(mmu);
+
+ return nents;
+
+out_fail:
+ intel_ipu4_dma_unmap_sg(dev, sglist, i, dir, attrs);
+
+ return 0;
+}
+
+/*
+* Create scatter-list for the already allocated DMA buffer
+*/
+static int intel_ipu4_dma_get_sgtable(struct device *dev, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t handle, size_t size,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+ struct dma_attrs *attrs
+#else
+ unsigned long attrs
+#endif
+ )
+{
+ struct vm_struct *area = find_vm_area(cpu_addr);
+ int n_pages;
+ int ret = 0;
+
+ if (WARN_ON(!area->pages))
+ return -ENOMEM;
+
+ n_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
+
+ ret = sg_alloc_table_from_pages(sgt, area->pages, n_pages, 0, size,
+ GFP_KERNEL);
+ if (ret)
+ dev_dbg(dev, "IPU get sgt table fail\n");
+
+ return ret;
+}
+
+const struct dma_map_ops ipu_dma_ops = {
+ .alloc = intel_ipu4_dma_alloc,
+ .free = intel_ipu4_dma_free,
+ .mmap = intel_ipu4_dma_mmap,
+ .map_sg = intel_ipu4_dma_map_sg,
+ .unmap_sg = intel_ipu4_dma_unmap_sg,
+ .sync_single_for_cpu = intel_ipu4_dma_sync_single_for_cpu,
+ .sync_single_for_device = intel_ipu4_dma_sync_single_for_cpu,
+ .sync_sg_for_cpu = intel_ipu4_dma_sync_sg_for_cpu,
+ .sync_sg_for_device = intel_ipu4_dma_sync_sg_for_cpu,
+ .get_sgtable = intel_ipu4_dma_get_sgtable,
+};
+EXPORT_SYMBOL_GPL(ipu_dma_ops);
+
diff --git a/drivers/media/pci/intel/ici/ici-isys-csi2-be.c b/drivers/media/pci/intel/ici/ici-isys-csi2-be.c
new file mode 100644
index 000000000000..6841263a8d16
--- /dev/null
+++ b/drivers/media/pci/intel/ici/ici-isys-csi2-be.c
@@ -0,0 +1,280 @@
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
+/*
+ * Copyright (C) 2018 Intel Corporation
+ */
+
+#include "./ici/ici-isys.h"
+#ifdef ICI_ENABLED
+
+#ifndef IPU4_DEBUG
+#define IPU4_DEBUG 1
+#endif
+
+#include "./ici/ici-isys-csi2-be.h"
+#include "isysapi/interface/ia_css_isysapi_fw_types.h"
+
+#define ici_asd_to_csi2_be(__asd) \
+ container_of(__asd, struct ici_isys_csi2_be, asd)
+
+static const uint32_t ici_csi2_be_supported_codes_pad[] = {
+ ICI_FORMAT_SBGGR12,
+ ICI_FORMAT_SGBRG12,
+ ICI_FORMAT_SGRBG12,
+ ICI_FORMAT_SRGGB12,
+ ICI_FORMAT_SBGGR10,
+ ICI_FORMAT_SGBRG10,
+ ICI_FORMAT_SGRBG10,
+ ICI_FORMAT_SRGGB10,
+ ICI_FORMAT_SBGGR8,
+ ICI_FORMAT_SGBRG8,
+ ICI_FORMAT_SGRBG8,
+ ICI_FORMAT_SRGGB8,
+ 0,
+};
+
+static const uint32_t ici_csi2_be_soc_supported_codes_pad[] = {
+ ICI_FORMAT_RGB888,
+ ICI_FORMAT_RGB565,
+ ICI_FORMAT_UYVY,
+ ICI_FORMAT_YUYV,
+ ICI_FORMAT_SBGGR12,
+ ICI_FORMAT_SGBRG12,
+ ICI_FORMAT_SGRBG12,
+ ICI_FORMAT_SRGGB12,
+ ICI_FORMAT_SBGGR10,
+ ICI_FORMAT_SGBRG10,
+ ICI_FORMAT_SGRBG10,
+ ICI_FORMAT_SRGGB10,
+ ICI_FORMAT_SBGGR8,
+ ICI_FORMAT_SGBRG8,
+ ICI_FORMAT_SGRBG8,
+ ICI_FORMAT_SRGGB8,
+ 0,
+};
+
+static const uint32_t *ici_csi2_be_supported_codes[] = {
+ ici_csi2_be_supported_codes_pad,
+ ici_csi2_be_supported_codes_pad,
+};
+
+static const uint32_t *ici_csi2_be_soc_supported_codes[] = {
+ ici_csi2_be_soc_supported_codes_pad,
+ ici_csi2_be_soc_supported_codes_pad,
+};
+
+static int get_supported_code_index(uint32_t code)
+{
+ int i;
+
+ for (i = 0; ici_csi2_be_supported_codes_pad[i]; i++) {
+ if (ici_csi2_be_supported_codes_pad[i] == code)
+ return i;
+ }
+ return -EINVAL;
+}
+
+void ici_csi2_be_set_ffmt(struct ici_isys_subdev *asd,
+ unsigned pad,
+ struct ici_framefmt *ffmt)
+{
+ struct ici_framefmt *cur_ffmt =
+ __ici_isys_subdev_get_ffmt(asd, pad);
+ int idx=0;
+ if (!cur_ffmt)
+ return;
+
+ ffmt->colorspace = 0;
+ memset(ffmt->reserved, 0, sizeof(ffmt->reserved));
+ switch (pad) {
+ case CSI2_BE_ICI_PAD_SINK:
+ DEBUGK("%s: sink pad %u\n", __func__, pad);
+ if (ffmt->field != ICI_FIELD_ALTERNATE)
+ ffmt->field = ICI_FIELD_NONE;
+ *cur_ffmt = *ffmt;
+
+ ici_isys_subdev_fmt_propagate(asd, pad, NULL,
+ ICI_ISYS_SUBDEV_PROP_TGT_SINK_FMT,
+ ffmt);
+ break;
+ case CSI2_BE_ICI_PAD_SOURCE: {
+ struct ici_framefmt *sink_ffmt =
+ __ici_isys_subdev_get_ffmt(asd,
+ CSI2_BE_ICI_PAD_SINK);
+
+ struct ici_rect *r =
+ &asd->crop[CSI2_BE_ICI_PAD_SOURCE];
+
+ u32 code = 0;
+ if (sink_ffmt)
+ code = sink_ffmt->pixelformat;
+
+ idx = get_supported_code_index(code);
+
+ DEBUGK("%s: source pad %u\n", __func__, pad);
+
+ if (asd->valid_tgts[CSI2_BE_ICI_PAD_SOURCE].crop
+ && idx >= 0) {
+ int crop_info = 0;
+
+ DEBUGK("%s: setting CROP, pad %u\n", __func__,
+ pad);
+
+ if (r->top & 1)
+ crop_info |= CSI2_BE_ICI_CROP_VER;
+ if (r->left & 1)
+ crop_info |= CSI2_BE_ICI_CROP_HOR;
+ code = ici_csi2_be_supported_codes_pad[((
+ idx &
+ CSI2_BE_ICI_CROP_MASK)
+ ^
+ crop_info)
+ +
+ (idx &
+ ~CSI2_BE_ICI_CROP_MASK)];
+ }
+
+ DEBUGK("%s: setting to w:%u,h:%u,pf:%u,field:%u\n",
+ __func__, r->width,
+ r->height, code, sink_ffmt->field);
+ cur_ffmt->width = r->width;
+ cur_ffmt->height = r->height;
+ cur_ffmt->pixelformat = code;
+ cur_ffmt->field = sink_ffmt->field;
+ *ffmt = *cur_ffmt;
+ break;
+ }
+ default:
+ BUG_ON(1);
+ }
+}
+
+static int ici_csi2_be_set_stream(
+ struct ici_isys_node *node,
+ void* ip,
+ int state)
+{
+ return 0;
+}
+
+static int ici_csi2_be_pipeline_validate(
+ struct node_pipeline *inp,
+ struct ici_isys_node *node)
+{
+ struct ici_isys_subdev* asd = node->sd;
+ struct ici_isys_csi2_be *csi2_be =
+ ici_asd_to_csi2_be(asd);
+ struct ici_isys_pipeline *ip =
+ ici_nodepipe_to_pipeline(inp);
+
+ ip->csi2_be = csi2_be;
+ return 0;
+}
+
+int ici_isys_csi2_be_init(struct ici_isys_csi2_be
+ *csi2_be,
+ struct ici_isys *isys,
+ unsigned int type)
+{
+ struct ici_pad_framefmt pff = {
+ .pad.pad_idx = CSI2_BE_ICI_PAD_SINK,
+ .ffmt = {
+ .width = 4096,
+ .height = 3072,
+ },
+ };
+ int rval;
+ char name[ICI_MAX_NODE_NAME];
+
+ dev_info(&isys->adev->dev, "ici_isys_csi2_be_init\n");
+
+ csi2_be->asd.isys = isys;
+ if (type == ICI_BE_RAW) {
+ csi2_be->as.buf_list.css_pin_type =
+ IA_CSS_ISYS_PIN_TYPE_RAW_NS;
+ snprintf(name, sizeof(name),
+ IPU_ISYS_ENTITY_PREFIX " CSI2 BE");
+ } else if (type >= ICI_BE_SOC) {
+ csi2_be->as.buf_list.css_pin_type =
+ IA_CSS_ISYS_PIN_TYPE_RAW_SOC;
+ snprintf(name, sizeof(name),
+ IPU_ISYS_ENTITY_PREFIX " CSI2 BE SOC %u", type-1);
+ } else {
+ return -EINVAL;
+ }
+
+ rval = ici_isys_subdev_init(&csi2_be->asd,
+ name,
+ NR_OF_CSI2_BE_ICI_PADS,
+ 0);
+ if (rval) {
+ dev_err(&isys->adev->dev, "can't init subdevice\n");
+ goto fail_subdev;
+ }
+
+ csi2_be->asd.pads[CSI2_BE_ICI_PAD_SINK].flags = ICI_PAD_FLAGS_SINK
+ | ICI_PAD_FLAGS_MUST_CONNECT;
+ csi2_be->asd.pads[CSI2_BE_ICI_PAD_SOURCE].flags =
+ ICI_PAD_FLAGS_SOURCE;
+
+ if (type == ICI_BE_RAW)
+ csi2_be->asd.valid_tgts[CSI2_BE_ICI_PAD_SOURCE].crop = true;
+ else
+ csi2_be->asd.valid_tgts[CSI2_BE_ICI_PAD_SOURCE].crop = false;
+
+ csi2_be->asd.set_ffmt_internal = ici_csi2_be_set_ffmt;
+
+ if (type == ICI_BE_RAW) {
+ csi2_be->asd.supported_codes = ici_csi2_be_supported_codes;
+ csi2_be->asd.be_mode = ICI_BE_RAW;
+ csi2_be->asd.isl_mode = ICI_ISL_CSI2_BE;
+ } else {
+ csi2_be->asd.supported_codes = ici_csi2_be_soc_supported_codes;
+ csi2_be->asd.be_mode = ICI_BE_SOC;
+ csi2_be->asd.isl_mode = ICI_ISL_OFF;
+ }
+
+ csi2_be->asd.node.node_set_pad_ffmt(&csi2_be->asd.node, &pff);
+ /* ipu4_isys_csi2_be2_set_sel(&csi2_be->asd.sd, NULL, &sel); */
+ /* csi2_be->asd.sd.internal_ops = &csi2_be_sd_internal_ops; */
+ csi2_be->asd.node.node_set_streaming =
+ ici_csi2_be_set_stream;
+ csi2_be->asd.node.node_pipeline_validate =
+ ici_csi2_be_pipeline_validate;
+
+
+ csi2_be->as.isys = isys;
+ if (type == ICI_BE_RAW)
+ csi2_be->as.pfmts = ici_isys_pfmts;
+ else
+ csi2_be->as.pfmts = ici_isys_pfmts_be_soc;
+
+ csi2_be->as.try_fmt_vid_mplane =
+ ici_isys_video_try_fmt_vid_mplane_default;
+ csi2_be->as.prepare_firmware_stream_cfg =
+ ici_isys_prepare_firmware_stream_cfg_default;
+
+ rval = ici_isys_stream_init(&csi2_be->as, &csi2_be->asd,
+ &csi2_be->asd.node, CSI2_BE_ICI_PAD_SOURCE,
+ ICI_PAD_FLAGS_SINK);
+ if (rval) {
+ dev_err(&isys->adev->dev, "can't init stream node\n");
+ goto fail_stream;
+ }
+ return 0;
+
+fail_stream:
+ ici_isys_subdev_cleanup(&csi2_be->asd);
+fail_subdev:
+ return rval;
+}
+EXPORT_SYMBOL(ici_isys_csi2_be_init);
+
+void ici_isys_csi2_be_cleanup(struct ici_isys_csi2_be
+ *csi2_be)
+{
+ ici_isys_subdev_cleanup(&csi2_be->asd);
+ ici_isys_stream_cleanup(&csi2_be->as);
+}
+EXPORT_SYMBOL(ici_isys_csi2_be_cleanup);
+
+#endif /* ICI_ENABLED */
diff --git a/drivers/media/pci/intel/ici/ici-isys-csi2-be.h b/drivers/media/pci/intel/ici/ici-isys-csi2-be.h
new file mode 100644
index 000000000000..428619d24520
--- /dev/null
+++ b/drivers/media/pci/intel/ici/ici-isys-csi2-be.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0) */
+/*
+ * Copyright (C) 2018 Intel Corporation
+ */
+
+#ifndef ICI_ISYS_CSI2_BE_H
+#define ICI_ISYS_CSI2_BE_H
+
+#include "ici-isys-subdev.h"
+#include "ici-isys-stream.h"
+
+#define CSI2_BE_ICI_PAD_SINK 0
+#define CSI2_BE_ICI_PAD_SOURCE 1
+#define NR_OF_CSI2_BE_ICI_PADS 2
+
+#define CSI2_BE_ICI_CROP_HOR (1 << 0)
+#define CSI2_BE_ICI_CROP_VER (1 << 1)
+#define CSI2_BE_ICI_CROP_MASK (CSI2_BE_ICI_CROP_VER | CSI2_BE_ICI_CROP_HOR)
+
+struct ici_isys_csi2_be_pdata;
+/*
+ * struct ici_isys_csi2_be
+ */
+struct ici_isys_csi2_be {
+ struct ici_isys_csi2_be_pdata *pdata;
+ struct ici_isys_subdev asd;