From: Bingbu Cao <bingbu.cao@xxxxxxxxx>
DMA ops are a helper for architectures and not for drivers to override
the DMA implementation. Driver should not override the DMA
implementation.
This patch removes the dma_ops override from auxiliary device and
sets up and expose its own IPU6 DMA mapping APIs, the calle use the
mapping APIs to allocate/free DMA buffers, map/unmap the SG pages(likely
allocated by IOMMU) to be accessible by IPU MMU and performs cache
synchronization.
Fixes: 9163d83573e4 ("media: intel/ipu6: add IPU6 DMA mapping API and MMU table")
Signed-off-by: Bingbu Cao <bingbu.cao@xxxxxxxxx>
---
v2: reword the commit message to explain the patch actually does
---
drivers/media/pci/intel/ipu6/ipu6-bus.c | 6 -
drivers/media/pci/intel/ipu6/ipu6-buttress.c | 21 +-
drivers/media/pci/intel/ipu6/ipu6-cpd.c | 18 +-
drivers/media/pci/intel/ipu6/ipu6-dma.c | 195 +++++++++----------
drivers/media/pci/intel/ipu6/ipu6-dma.h | 34 +++-
drivers/media/pci/intel/ipu6/ipu6-fw-com.c | 14 +-
6 files changed, 156 insertions(+), 132 deletions(-)
diff --git a/drivers/media/pci/intel/ipu6/ipu6-bus.c b/drivers/media/pci/intel/ipu6/ipu6-bus.c
index 149ec098cdbf..37d88ddb6ee7 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-bus.c
+++ b/drivers/media/pci/intel/ipu6/ipu6-bus.c
@@ -94,8 +94,6 @@ ipu6_bus_initialize_device(struct pci_dev *pdev, struct device *parent,
if (!adev)
return ERR_PTR(-ENOMEM);
- adev->dma_mask = DMA_BIT_MASK(isp->secure_mode ? IPU6_MMU_ADDR_BITS :
- IPU6_MMU_ADDR_BITS_NON_SECURE);
adev->isp = isp;
adev->ctrl = ctrl;
adev->pdata = pdata;
@@ -106,10 +104,6 @@ ipu6_bus_initialize_device(struct pci_dev *pdev, struct device *parent,
auxdev->dev.parent = parent;
auxdev->dev.release = ipu6_bus_release;
- auxdev->dev.dma_ops = &ipu6_dma_ops;
- auxdev->dev.dma_mask = &adev->dma_mask;
- auxdev->dev.dma_parms = pdev->dev.dma_parms;
- auxdev->dev.coherent_dma_mask = adev->dma_mask;
ret = auxiliary_device_init(auxdev);
if (ret < 0) {
diff --git a/drivers/media/pci/intel/ipu6/ipu6-buttress.c b/drivers/media/pci/intel/ipu6/ipu6-buttress.c
index e47f84c30e10..d66db537be4a 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-buttress.c
+++ b/drivers/media/pci/intel/ipu6/ipu6-buttress.c
@@ -24,6 +24,7 @@
#include "ipu6.h"
#include "ipu6-bus.h"
+#include "ipu6-dma.h"
#include "ipu6-buttress.h"
#include "ipu6-platform-buttress-regs.h"
@@ -553,6 +554,7 @@ int ipu6_buttress_map_fw_image(struct ipu6_bus_device *sys,
const struct firmware *fw, struct sg_table *sgt)
{
bool is_vmalloc = is_vmalloc_addr(fw->data);
+ struct pci_dev *pdev = sys->isp->pdev;
struct page **pages;
const void *addr;
unsigned long n_pages;
@@ -588,14 +590,20 @@ int ipu6_buttress_map_fw_image(struct ipu6_bus_device *sys,
goto out;
}
- ret = dma_map_sgtable(&sys->auxdev.dev, sgt, DMA_TO_DEVICE, 0);
- if (ret < 0) {
- ret = -ENOMEM;
+ ret = dma_map_sgtable(&pdev->dev, sgt, DMA_TO_DEVICE, 0);
+ if (ret) {
+ sg_free_table(sgt);
+ goto out;
+ }
+
+ ret = ipu6_dma_map_sgtable(sys, sgt, DMA_TO_DEVICE, 0);
+ if (ret) {
+ dma_unmap_sgtable(&pdev->dev, sgt, DMA_TO_DEVICE, 0);
sg_free_table(sgt);
goto out;
}
- dma_sync_sgtable_for_device(&sys->auxdev.dev, sgt, DMA_TO_DEVICE);
+ ipu6_dma_sync_sgtable(sys, sgt);
out:
kfree(pages);
@@ -607,7 +615,10 @@ EXPORT_SYMBOL_NS_GPL(ipu6_buttress_map_fw_image, INTEL_IPU6);
void ipu6_buttress_unmap_fw_image(struct ipu6_bus_device *sys,
struct sg_table *sgt)
{
- dma_unmap_sgtable(&sys->auxdev.dev, sgt, DMA_TO_DEVICE, 0);
+ struct pci_dev *pdev = sys->isp->pdev;
+
+ ipu6_dma_unmap_sgtable(sys, sgt, DMA_TO_DEVICE, 0);
+ dma_unmap_sgtable(&pdev->dev, sgt, DMA_TO_DEVICE, 0);
sg_free_table(sgt);
}
EXPORT_SYMBOL_NS_GPL(ipu6_buttress_unmap_fw_image, INTEL_IPU6);
diff --git a/drivers/media/pci/intel/ipu6/ipu6-cpd.c b/drivers/media/pci/intel/ipu6/ipu6-cpd.c
index 715b21ab4b8e..21c1c128a7ea 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-cpd.c
+++ b/drivers/media/pci/intel/ipu6/ipu6-cpd.c
@@ -15,6 +15,7 @@
#include "ipu6.h"
#include "ipu6-bus.h"
#include "ipu6-cpd.h"
+#include "ipu6-dma.h"
/* 15 entries + header*/
#define MAX_PKG_DIR_ENT_CNT 16
@@ -162,7 +163,6 @@ 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;
@@ -175,8 +175,8 @@ int ipu6_cpd_create_pkg_dir(struct ipu6_bus_device *adev, const void *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);
+ adev->pkg_dir = ipu6_dma_alloc(adev, adev->pkg_dir_size,
+ &adev->pkg_dir_dma_addr, GFP_KERNEL, 0);
if (!adev->pkg_dir)
return -ENOMEM;
@@ -198,8 +198,8 @@ int ipu6_cpd_create_pkg_dir(struct ipu6_bus_device *adev, const void *src)
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);
+ ipu6_dma_free(adev, adev->pkg_dir_size,
+ adev->pkg_dir, adev->pkg_dir_dma_addr, 0);
return ret;
}
@@ -211,8 +211,8 @@ int ipu6_cpd_create_pkg_dir(struct ipu6_bus_device *adev, const void *src)
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);
+ ipu6_dma_sync_single(adev, adev->pkg_dir_dma_addr,
+ adev->pkg_dir_size);
return 0;
}
@@ -220,8 +220,8 @@ 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);
+ ipu6_dma_free(adev, adev->pkg_dir_size, adev->pkg_dir,
+ adev->pkg_dir_dma_addr, 0);
}
EXPORT_SYMBOL_NS_GPL(ipu6_cpd_free_pkg_dir, INTEL_IPU6);
diff --git a/drivers/media/pci/intel/ipu6/ipu6-dma.c b/drivers/media/pci/intel/ipu6/ipu6-dma.c
index 92530a1cc90f..d03803e58881 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-dma.c
+++ b/drivers/media/pci/intel/ipu6/ipu6-dma.c
@@ -39,8 +39,7 @@ static struct vm_info *get_vm_info(struct ipu6_mmu *mmu, dma_addr_t iova)
return NULL;
}
-static void __dma_clear_buffer(struct page *page, size_t size,
- unsigned long attrs)
+static void __clear_buffer(struct page *page, size_t size, unsigned long attrs)
{
void *ptr;
@@ -56,8 +55,7 @@ static void __dma_clear_buffer(struct page *page, size_t size,
clflush_cache_range(ptr, size);
}
-static struct page **__dma_alloc_buffer(struct device *dev, size_t size,
- gfp_t gfp, unsigned long attrs)
+static struct page **__alloc_buffer(size_t size, gfp_t gfp, unsigned long attrs)
{
int count = PHYS_PFN(size);
int array_size = count * sizeof(struct page *);
@@ -86,7 +84,7 @@ static struct page **__dma_alloc_buffer(struct device *dev, size_t size,
pages[i + j] = pages[i] + j;
}
- __dma_clear_buffer(pages[i], PAGE_SIZE << order, attrs);
+ __clear_buffer(pages[i], PAGE_SIZE << order, attrs);
i += 1 << order;
count -= 1 << order;
}
@@ -100,29 +98,26 @@ static struct page **__dma_alloc_buffer(struct device *dev, size_t size,
return NULL;
}
-static void __dma_free_buffer(struct device *dev, struct page **pages,
- size_t size, unsigned long attrs)
+static void __free_buffer(struct page **pages, size_t size, unsigned long attrs)
{
int count = PHYS_PFN(size);
unsigned int i;
for (i = 0; i < count && pages[i]; i++) {
- __dma_clear_buffer(pages[i], PAGE_SIZE, attrs);
+ __clear_buffer(pages[i], PAGE_SIZE, attrs);
__free_pages(pages[i], 0);
}
kvfree(pages);
}
-static void ipu6_dma_sync_single_for_cpu(struct device *dev,
- dma_addr_t dma_handle,
- size_t size,
- enum dma_data_direction dir)
+void ipu6_dma_sync_single(struct ipu6_bus_device *sys, dma_addr_t dma_handle,
+ size_t size)
{
void *vaddr;
u32 offset;
struct vm_info *info;
- struct ipu6_mmu *mmu = to_ipu6_bus_device(dev)->mmu;
+ struct ipu6_mmu *mmu = sys->mmu;
info = get_vm_info(mmu, dma_handle);
if (WARN_ON(!info))
@@ -135,10 +130,10 @@ static void ipu6_dma_sync_single_for_cpu(struct device *dev,
vaddr = info->vaddr + offset;
clflush_cache_range(vaddr, size);
}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_sync_single, INTEL_IPU6);
-static void ipu6_dma_sync_sg_for_cpu(struct device *dev,
- struct scatterlist *sglist,
- int nents, enum dma_data_direction dir)
+void ipu6_dma_sync_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
+ int nents)
{
struct scatterlist *sg;
int i;
@@ -146,14 +141,22 @@ static void ipu6_dma_sync_sg_for_cpu(struct device *dev,
for_each_sg(sglist, sg, nents, i)
clflush_cache_range(page_to_virt(sg_page(sg)), sg->length);
}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_sync_sg, INTEL_IPU6);
-static void *ipu6_dma_alloc(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp,
- unsigned long attrs)
+void ipu6_dma_sync_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt)
{
- struct ipu6_mmu *mmu = to_ipu6_bus_device(dev)->mmu;
- struct pci_dev *pdev = to_ipu6_bus_device(dev)->isp->pdev;
+ ipu6_dma_sync_sg(sys, sgt->sgl, sgt->orig_nents);
+}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_sync_sgtable, INTEL_IPU6);
+
+void *ipu6_dma_alloc(struct ipu6_bus_device *sys, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+ unsigned long attrs)
+{
+ struct device *dev = &sys->auxdev.dev;
+ struct pci_dev *pdev = sys->isp->pdev;
dma_addr_t pci_dma_addr, ipu6_iova;
+ struct ipu6_mmu *mmu = sys->mmu;
struct vm_info *info;
unsigned long count;
struct page **pages;
@@ -173,7 +176,7 @@ static void *ipu6_dma_alloc(struct device *dev, size_t size,
if (!iova)
goto out_kfree;
- pages = __dma_alloc_buffer(dev, size, gfp, attrs);
+ pages = __alloc_buffer(size, gfp, attrs);
if (!pages)
goto out_free_iova;
@@ -227,7 +230,7 @@ static void *ipu6_dma_alloc(struct device *dev, size_t size,
ipu6_mmu_unmap(mmu->dmap->mmu_info, ipu6_iova, PAGE_SIZE);
}
- __dma_free_buffer(dev, pages, size, attrs);
+ __free_buffer(pages, size, attrs);
out_free_iova:
__free_iova(&mmu->dmap->iovad, iova);
@@ -236,13 +239,13 @@ static void *ipu6_dma_alloc(struct device *dev, size_t size,
return NULL;
}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_alloc, INTEL_IPU6);
-static void ipu6_dma_free(struct device *dev, size_t size, void *vaddr,
- dma_addr_t dma_handle,
- unsigned long attrs)
+void ipu6_dma_free(struct ipu6_bus_device *sys, size_t size, void *vaddr,
+ dma_addr_t dma_handle, unsigned long attrs)
{
- struct ipu6_mmu *mmu = to_ipu6_bus_device(dev)->mmu;
- struct pci_dev *pdev = to_ipu6_bus_device(dev)->isp->pdev;
+ struct ipu6_mmu *mmu = sys->mmu;
+ struct pci_dev *pdev = sys->isp->pdev;
struct iova *iova = find_iova(&mmu->dmap->iovad, PHYS_PFN(dma_handle));
dma_addr_t pci_dma_addr, ipu6_iova;
struct vm_info *info;
@@ -281,7 +284,7 @@ static void ipu6_dma_free(struct device *dev, size_t size, void *vaddr,
ipu6_mmu_unmap(mmu->dmap->mmu_info, PFN_PHYS(iova->pfn_lo),
PFN_PHYS(iova_size(iova)));
- __dma_free_buffer(dev, pages, size, attrs);
+ __free_buffer(pages, size, attrs);
mmu->tlb_invalidate(mmu);
@@ -289,13 +292,14 @@ static void ipu6_dma_free(struct device *dev, size_t size, void *vaddr,
kfree(info);
}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_free, INTEL_IPU6);
-static int ipu6_dma_mmap(struct device *dev, struct vm_area_struct *vma,
- void *addr, dma_addr_t iova, size_t size,
- unsigned long attrs)
+int ipu6_dma_mmap(struct ipu6_bus_device *sys, struct vm_area_struct *vma,
+ void *addr, dma_addr_t iova, size_t size,
+ unsigned long attrs)
{
- struct ipu6_mmu *mmu = to_ipu6_bus_device(dev)->mmu;
- size_t count = PHYS_PFN(PAGE_ALIGN(size));
+ struct ipu6_mmu *mmu = sys->mmu;
+ size_t count = PFN_UP(size);
struct vm_info *info;
size_t i;
int ret;
@@ -323,18 +327,17 @@ static int ipu6_dma_mmap(struct device *dev, struct vm_area_struct *vma,
return 0;
}
-static void ipu6_dma_unmap_sg(struct device *dev,
- struct scatterlist *sglist,
- int nents, enum dma_data_direction dir,
- unsigned long attrs)
+void ipu6_dma_unmap_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
{
- struct pci_dev *pdev = to_ipu6_bus_device(dev)->isp->pdev;
- struct ipu6_mmu *mmu = to_ipu6_bus_device(dev)->mmu;
+ struct device *dev = &sys->auxdev.dev;
+ struct ipu6_mmu *mmu = sys->mmu;
struct iova *iova = find_iova(&mmu->dmap->iovad,
PHYS_PFN(sg_dma_address(sglist)));
- int i, npages, count;
struct scatterlist *sg;
dma_addr_t pci_dma_addr;
+ unsigned int i;
if (!nents)
return;
@@ -342,31 +345,15 @@ static void ipu6_dma_unmap_sg(struct device *dev,
if (WARN_ON(!iova))
return;
- if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
- ipu6_dma_sync_sg_for_cpu(dev, sglist, nents, DMA_BIDIRECTIONAL);
-
- /* get the nents as orig_nents given by caller */
- count = 0;
- npages = iova_size(iova);
- for_each_sg(sglist, sg, nents, i) {
- if (sg_dma_len(sg) == 0 ||
- sg_dma_address(sg) == DMA_MAPPING_ERROR)
- break;
-
- npages -= PHYS_PFN(PAGE_ALIGN(sg_dma_len(sg)));
- count++;
- if (npages <= 0)
- break;
- }
-
/*
* Before IPU6 mmu unmap, return the pci dma address back to sg
* assume the nents is less than orig_nents as the least granule
* is 1 SZ_4K page
*/
- dev_dbg(dev, "trying to unmap concatenated %u ents\n", count);
- for_each_sg(sglist, sg, count, i) {
- dev_dbg(dev, "ipu unmap sg[%d] %pad\n", i, &sg_dma_address(sg));
+ dev_dbg(dev, "trying to unmap concatenated %u ents\n", nents);
+ for_each_sg(sglist, sg, nents, i) {
+ dev_dbg(dev, "unmap sg[%d] %pad size %u\n", i,
+ &sg_dma_address(sg), sg_dma_len(sg));
pci_dma_addr = ipu6_mmu_iova_to_phys(mmu->dmap->mmu_info,
sg_dma_address(sg));
dev_dbg(dev, "return pci_dma_addr %pad back to sg[%d]\n",
@@ -380,23 +367,21 @@ static void ipu6_dma_unmap_sg(struct device *dev,
PFN_PHYS(iova_size(iova)));
mmu->tlb_invalidate(mmu);
-
- dma_unmap_sg_attrs(&pdev->dev, sglist, nents, dir, attrs);
-
__free_iova(&mmu->dmap->iovad, iova);
}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_unmap_sg, INTEL_IPU6);
-static int ipu6_dma_map_sg(struct device *dev, struct scatterlist *sglist,
- int nents, enum dma_data_direction dir,
- unsigned long attrs)
+int ipu6_dma_map_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
{
- struct ipu6_mmu *mmu = to_ipu6_bus_device(dev)->mmu;
- struct pci_dev *pdev = to_ipu6_bus_device(dev)->isp->pdev;
+ struct device *dev = &sys->auxdev.dev;
+ struct ipu6_mmu *mmu = sys->mmu;
struct scatterlist *sg;
struct iova *iova;
size_t npages = 0;
unsigned long iova_addr;
- int i, count;
+ int i;
for_each_sg(sglist, sg, nents, i) {
if (sg->offset) {
@@ -406,18 +391,12 @@ static int ipu6_dma_map_sg(struct device *dev, struct scatterlist *sglist,
}
}
- dev_dbg(dev, "pci_dma_map_sg trying to map %d ents\n", nents);
- count = dma_map_sg_attrs(&pdev->dev, sglist, nents, dir, attrs);
- if (count <= 0) {
- dev_err(dev, "pci_dma_map_sg %d ents failed\n", nents);
- return 0;
- }
-
- dev_dbg(dev, "pci_dma_map_sg %d ents mapped\n", count);
-
- for_each_sg(sglist, sg, count, i)
+ for_each_sg(sglist, sg, nents, i)
npages += PHYS_PFN(PAGE_ALIGN(sg_dma_len(sg)));
+ dev_dbg(dev, "dmamap trying to map %d ents %zu pages\n",
+ nents, npages);
+
iova = alloc_iova(&mmu->dmap->iovad, npages,
PHYS_PFN(dma_get_mask(dev)), 0);
if (!iova)
@@ -427,7 +406,7 @@ static int ipu6_dma_map_sg(struct device *dev, struct scatterlist *sglist,
iova->pfn_hi);
iova_addr = iova->pfn_lo;
- for_each_sg(sglist, sg, count, i) {
+ for_each_sg(sglist, sg, nents, i) {
int ret;
dev_dbg(dev, "mapping entry %d: iova 0x%llx phy %pad size %d\n",
@@ -445,25 +424,48 @@ static int ipu6_dma_map_sg(struct device *dev, struct scatterlist *sglist,
iova_addr += PHYS_PFN(PAGE_ALIGN(sg_dma_len(sg)));
}
- if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
- ipu6_dma_sync_sg_for_cpu(dev, sglist, nents, DMA_BIDIRECTIONAL);
+ dev_dbg(dev, "dmamap %d ents %zu pages mapped\n", nents, npages);
- return count;
+ return nents;
out_fail:
- ipu6_dma_unmap_sg(dev, sglist, i, dir, attrs);
+ ipu6_dma_unmap_sg(sys, sglist, i, dir, attrs);
return 0;
}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_map_sg, INTEL_IPU6);
+
+int ipu6_dma_map_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
+ enum dma_data_direction dir, unsigned long attrs)
+{
+ int nents;
+
+ nents = ipu6_dma_map_sg(sys, sgt->sgl, sgt->nents, dir, attrs);
+ if (nents < 0)
+ return nents;
+
+ sgt->nents = nents;
+
+ return 0;
+}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_map_sgtable, INTEL_IPU6);
+
+void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
+ enum dma_data_direction dir, unsigned long attrs)
+{
+ ipu6_dma_unmap_sg(sys, sgt->sgl, sgt->nents, dir, attrs);
+}
+EXPORT_SYMBOL_NS_GPL(ipu6_dma_unmap_sgtable, INTEL_IPU6);
/*
* Create scatter-list for the already allocated DMA buffer
*/
-static int ipu6_dma_get_sgtable(struct device *dev, struct sg_table *sgt,
- void *cpu_addr, dma_addr_t handle, size_t size,
- unsigned long attrs)
+int ipu6_dma_get_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t handle, size_t size,
+ unsigned long attrs)
{
- struct ipu6_mmu *mmu = to_ipu6_bus_device(dev)->mmu;
+ struct device *dev = &sys->auxdev.dev;
+ struct ipu6_mmu *mmu = sys->mmu;
struct vm_info *info;
int n_pages;
int ret = 0;
@@ -483,20 +485,7 @@ static int ipu6_dma_get_sgtable(struct device *dev, struct sg_table *sgt,
ret = sg_alloc_table_from_pages(sgt, info->pages, n_pages, 0, size,
GFP_KERNEL);
if (ret)
- dev_warn(dev, "IPU6 get sgt table failed\n");
+ dev_warn(dev, "get sgt table failed\n");
return ret;
}
-
-const struct dma_map_ops ipu6_dma_ops = {
- .alloc = ipu6_dma_alloc,
- .free = ipu6_dma_free,
- .mmap = ipu6_dma_mmap,
- .map_sg = ipu6_dma_map_sg,
- .unmap_sg = ipu6_dma_unmap_sg,
- .sync_single_for_cpu = ipu6_dma_sync_single_for_cpu,
- .sync_single_for_device = ipu6_dma_sync_single_for_cpu,
- .sync_sg_for_cpu = ipu6_dma_sync_sg_for_cpu,
- .sync_sg_for_device = ipu6_dma_sync_sg_for_cpu,
- .get_sgtable = ipu6_dma_get_sgtable,
-};
diff --git a/drivers/media/pci/intel/ipu6/ipu6-dma.h b/drivers/media/pci/intel/ipu6/ipu6-dma.h
index 847ea5b7c925..b51244add9e6 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-dma.h
+++ b/drivers/media/pci/intel/ipu6/ipu6-dma.h
@@ -5,7 +5,13 @@
#define IPU6_DMA_H
#include <linux/dma-map-ops.h>
+#include <linux/dma-mapping.h>
#include <linux/iova.h>
+#include <linux/iova.h>
+#include <linux/scatterlist.h>
+#include <linux/types.h>
+
+#include "ipu6-bus.h"
struct ipu6_mmu_info;
@@ -14,6 +20,30 @@ struct ipu6_dma_mapping {
struct iova_domain iovad;
};
-extern const struct dma_map_ops ipu6_dma_ops;
-
+void ipu6_dma_sync_single(struct ipu6_bus_device *sys, dma_addr_t dma_handle,
+ size_t size);
+void ipu6_dma_sync_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
+ int nents);
+void ipu6_dma_sync_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt);
+void *ipu6_dma_alloc(struct ipu6_bus_device *sys, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+ unsigned long attrs);
+void ipu6_dma_free(struct ipu6_bus_device *sys, size_t size, void *vaddr,
+ dma_addr_t dma_handle, unsigned long attrs);
+int ipu6_dma_mmap(struct ipu6_bus_device *sys, struct vm_area_struct *vma,
+ void *addr, dma_addr_t iova, size_t size,
+ unsigned long attrs);
+int ipu6_dma_map_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs);
+void ipu6_dma_unmap_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs);
+int ipu6_dma_map_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
+ enum dma_data_direction dir, unsigned long attrs);
+void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
+ enum dma_data_direction dir, unsigned long attrs);
+int ipu6_dma_get_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t handle, size_t size,
+ unsigned long attrs);
#endif /* IPU6_DMA_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu6-fw-com.c b/drivers/media/pci/intel/ipu6/ipu6-fw-com.c
index 0b33fe9e703d..7d3d9314cb30 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-fw-com.c
+++ b/drivers/media/pci/intel/ipu6/ipu6-fw-com.c
@@ -12,6 +12,7 @@
#include <linux/types.h>
#include "ipu6-bus.h"
+#include "ipu6-dma.h"
#include "ipu6-fw-com.h"
/*
@@ -88,7 +89,6 @@ struct ipu6_fw_com_context {
void *dma_buffer;
dma_addr_t dma_addr;
unsigned int dma_size;
- unsigned long attrs;
struct ipu6_fw_sys_queue *input_queue; /* array of host to SP queues */
struct ipu6_fw_sys_queue *output_queue; /* array of SP to host */
@@ -164,7 +164,6 @@ void *ipu6_fw_com_prepare(struct ipu6_fw_com_cfg *cfg,
struct ipu6_fw_com_context *ctx;
struct device *dev = &adev->auxdev.dev;
size_t sizeall, offset;
- unsigned long attrs = 0;
void *specific_host_addr;
unsigned int i;
@@ -206,9 +205,8 @@ void *ipu6_fw_com_prepare(struct ipu6_fw_com_cfg *cfg,
sizeall += sizeinput + sizeoutput;
- ctx->dma_buffer = dma_alloc_attrs(dev, sizeall, &ctx->dma_addr,
- GFP_KERNEL, attrs);
- ctx->attrs = attrs;
+ ctx->dma_buffer = ipu6_dma_alloc(adev, sizeall, &ctx->dma_addr,
+ GFP_KERNEL, 0);
if (!ctx->dma_buffer) {
dev_err(dev, "failed to allocate dma memory\n");
kfree(ctx);
@@ -239,6 +237,8 @@ void *ipu6_fw_com_prepare(struct ipu6_fw_com_cfg *cfg,
memcpy(specific_host_addr, cfg->specific_addr,
cfg->specific_size);
+ ipu6_dma_sync_single(adev, ctx->config_vied_addr, sizeall);
+
/* initialize input queues */
offset += specific_size;
res.reg = SYSCOM_QPR_BASE_REG;
@@ -315,8 +315,8 @@ int ipu6_fw_com_release(struct ipu6_fw_com_context *ctx, unsigned int force)
if (!force && !ctx->cell_ready(ctx->adev))
return -EBUSY;
- dma_free_attrs(&ctx->adev->auxdev.dev, ctx->dma_size,
- ctx->dma_buffer, ctx->dma_addr, ctx->attrs);
+ ipu6_dma_free(ctx->adev, ctx->dma_size,
+ ctx->dma_buffer, ctx->dma_addr, 0);
kfree(ctx);
return 0;
}
--
2.34.1
