[PATCH 6.12 169/826] media: ipu6: not override the dma_ops of device in driver

6.12-stable review patch. If anyone has any objections, please let me know.

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From: Bingbu Cao bingbu.cao@intel.com

[ Upstream commit daabc5c64703432c4a8798421a3588c2c142c51b ]

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 adds driver-internal helpers that use the actual DMA mapping APIs.

Fixes: 9163d83573e4 ("media: intel/ipu6: add IPU6 DMA mapping API and MMU table") Signed-off-by: Bingbu Cao bingbu.cao@intel.com Reviewed-by: Christoph Hellwig hch@lst.de [Sakari Ailus: Fix the commit message a little.] Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Hans Verkuil hverkuil@xs4all.nl Signed-off-by: Sasha Levin sashal@kernel.org --- 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 149ec098cdbfe..37d88ddb6ee7c 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 e47f84c30e10d..d66db537be4a6 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 715b21ab4b8e9..21c1c128a7eaa 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 801f6bd00a891..b71f66bd8c1fd 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) { phys_addr_t iova_pa; int ret;

@@ -446,25 +425,48 @@ 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; @@ -484,20 +486,7 @@ 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 847ea5b7c925c..b51244add9e61 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 0b33fe9e703dc..7d3d9314cb306 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; }