From 7051d448e4589b74ec69ba56910e4cfbf1c86877 Mon Sep 17 00:00:00 2001 From: Andrey Dolnikov Date: Wed, 14 Feb 2018 12:03:23 +0300 Subject: MMNGR: Add cached buffers support. --- .../files/0003-kernelheap-cached-support.patch | 102 +++++++++++++++++++ .../kernel-module-mmngr.bbappend | 5 +- .../files/0001-cached-buffers-support.patch | 113 +++++++++++++++++++++ .../mmngr-module/mmngr-user-module.bbappend | 5 + 4 files changed, 224 insertions(+), 1 deletion(-) create mode 100644 meta-rcar-gen3-adas/recipes-kernel/kernel-module-mmngr/files/0003-kernelheap-cached-support.patch create mode 100644 meta-rcar-gen3-adas/recipes-multimedia/mmngr-module/files/0001-cached-buffers-support.patch create mode 100644 meta-rcar-gen3-adas/recipes-multimedia/mmngr-module/mmngr-user-module.bbappend diff --git a/meta-rcar-gen3-adas/recipes-kernel/kernel-module-mmngr/files/0003-kernelheap-cached-support.patch b/meta-rcar-gen3-adas/recipes-kernel/kernel-module-mmngr/files/0003-kernelheap-cached-support.patch new file mode 100644 index 0000000..171eac1 --- /dev/null +++ b/meta-rcar-gen3-adas/recipes-kernel/kernel-module-mmngr/files/0003-kernelheap-cached-support.patch @@ -0,0 +1,102 @@ +From d20b6893f3d22abd12ffb5421292fcee4820de33 Mon Sep 17 00:00:00 2001 +From: Andrey Dolnikov +Date: Wed, 14 Feb 2018 17:12:01 +0300 +Subject: [PATCH] mmngr: Add kernelheap cached buffers support. + +--- + .../mmngr/mmngr-module/files/mmngr/drv/mmngr_drv.c | 20 ++++++++++++++++---- + .../files/mmngr/include/mmngr_private_cmn.h | 7 +++++++ + .../files/mmngr/include/mmngr_public_cmn.h | 1 + + 4 files changed, 29 insertions(+), 4 deletions(-) + +diff --git a/mmngr_drv/mmngr/mmngr-module/files/mmngr/drv/mmngr_drv.c b/mmngr_drv/mmngr/mmngr-module/files/mmngr/drv/mmngr_drv.c +index cd797f5..c38329d 100644 +--- a/mmngr_drv/mmngr/mmngr-module/files/mmngr/drv/mmngr_drv.c ++++ b/mmngr_drv/mmngr/mmngr-module/files/mmngr/drv/mmngr_drv.c +@@ -736,7 +736,7 @@ static int close(struct inode *inode, struct file *file) + int entry = 0; + + if (p) { +- if ((p->flag == MM_KERNELHEAP) ++ if ((p->flag == MM_KERNELHEAP || p->flag == MM_KERNELHEAP_CACHED) + && (p->kernel_virt_addr != 0)) { + pr_err("MMD close kernelheap\n"); + mm_dev = mm_drvdata->mm_dev; +@@ -779,6 +779,7 @@ static long ioctl(struct file *file, unsigned int cmd, unsigned long arg) + int ercd; + int ret; + struct MM_PARAM *p = file->private_data; ++ struct MM_CACHE_PARAM *cachep; + struct device *mm_dev; + + mm_dev = mm_drvdata->mm_dev; +@@ -830,6 +831,14 @@ static long ioctl(struct file *file, unsigned int cmd, unsigned long arg) + goto exit; + } + break; ++ case MM_IOC_FLUSH: ++ cachep = (struct MM_CACHE_PARAM *) arg; ++ dma_sync_single_for_device(mm_dev, p->hard_addr + cachep->offset, cachep->len, DMA_FROM_DEVICE); ++ break; ++ case MM_IOC_INVAL: ++ cachep = (struct MM_CACHE_PARAM *) arg; ++ dma_sync_single_for_cpu(mm_dev, p->hard_addr + cachep->offset, cachep->len, DMA_TO_DEVICE); ++ break; + default: + pr_err("MMD CMD EFAULT\n"); + ret = -EFAULT; +@@ -954,9 +963,12 @@ static int mmap(struct file *filp, struct vm_area_struct *vma) + off += start; + vma->vm_pgoff = off >> PAGE_SHIFT; + +- vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); +- +- vma->vm_flags |= (VM_IO | VM_DONTEXPAND | VM_DONTDUMP); ++ if (p->flag != MM_KERNELHEAP_CACHED) { ++ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); ++ vma->vm_flags |= (VM_IO | VM_DONTEXPAND | VM_DONTDUMP); ++ } else { ++ vma->vm_flags |= (VM_DONTEXPAND | VM_DONTDUMP); ++ } + + if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, + vma->vm_end - vma->vm_start, vma->vm_page_prot)) +diff --git a/mmngr_drv/mmngr/mmngr-module/files/mmngr/include/mmngr_private_cmn.h b/mmngr_drv/mmngr/mmngr-module/files/mmngr/include/mmngr_private_cmn.h +index f731ab6..5f137c6 100644 +--- a/mmngr_drv/mmngr/mmngr-module/files/mmngr/include/mmngr_private_cmn.h ++++ b/mmngr_drv/mmngr/mmngr-module/files/mmngr/include/mmngr_private_cmn.h +@@ -72,6 +72,11 @@ struct MM_PARAM { + unsigned int flag; + }; + ++struct MM_CACHE_PARAM { ++ size_t offset; ++ size_t len; ++}; ++ + #define MM_IOC_MAGIC 'm' + #define MM_IOC_ALLOC _IOWR(MM_IOC_MAGIC, 0, struct MM_PARAM) + #define MM_IOC_FREE _IOWR(MM_IOC_MAGIC, 1, struct MM_PARAM) +@@ -80,5 +85,7 @@ struct MM_PARAM { + #define MM_IOC_ALLOC_CO _IOWR(MM_IOC_MAGIC, 4, struct MM_PARAM) + #define MM_IOC_FREE_CO _IOWR(MM_IOC_MAGIC, 5, struct MM_PARAM) + #define MM_IOC_SHARE _IOWR(MM_IOC_MAGIC, 6, struct MM_PARAM) ++#define MM_IOC_FLUSH _IOWR(MM_IOC_MAGIC, 7, struct MM_CACHE_PARAM) ++#define MM_IOC_INVAL _IOWR(MM_IOC_MAGIC, 8, struct MM_CACHE_PARAM) + + #endif /* __MMNGR_PRIVATE_CMN_H__ */ +diff --git a/mmngr_drv/mmngr/mmngr-module/files/mmngr/include/mmngr_public_cmn.h b/mmngr_drv/mmngr/mmngr-module/files/mmngr/include/mmngr_public_cmn.h +index dce81a1..a668019 100644 +--- a/mmngr_drv/mmngr/mmngr-module/files/mmngr/include/mmngr_public_cmn.h ++++ b/mmngr_drv/mmngr/mmngr-module/files/mmngr/include/mmngr_public_cmn.h +@@ -62,6 +62,7 @@ + #define __MMNGR_PUBLIC_CMN_H__ + + #define MM_KERNELHEAP 0 ++#define MM_KERNELHEAP_CACHED 5 + #define MM_CARVEOUT 1 + #define MM_CARVEOUT_SSP 3 + #define MM_CARVEOUT_LOSSY 4 +-- +2.7.4 + diff --git a/meta-rcar-gen3-adas/recipes-kernel/kernel-module-mmngr/kernel-module-mmngr.bbappend b/meta-rcar-gen3-adas/recipes-kernel/kernel-module-mmngr/kernel-module-mmngr.bbappend index 6f05e72..bdb0251 100644 --- a/meta-rcar-gen3-adas/recipes-kernel/kernel-module-mmngr/kernel-module-mmngr.bbappend +++ b/meta-rcar-gen3-adas/recipes-kernel/kernel-module-mmngr/kernel-module-mmngr.bbappend @@ -6,4 +6,7 @@ MMNGR_CFG_condor = "MMNGR_V3MSK" MMNGR_CFG_v3mzf = "MMNGR_V3MSK" MMNGR_CFG_v3hsk = "MMNGR_V3MSK" -SRC_URI_append = " file://0002-mmngr-Add-V3MSK-board.patch" +SRC_URI_append = " \ + file://0002-mmngr-Add-V3MSK-board.patch \ + file://0003-kernelheap-cached-support.patch \ +" diff --git a/meta-rcar-gen3-adas/recipes-multimedia/mmngr-module/files/0001-cached-buffers-support.patch b/meta-rcar-gen3-adas/recipes-multimedia/mmngr-module/files/0001-cached-buffers-support.patch new file mode 100644 index 0000000..9a8030e --- /dev/null +++ b/meta-rcar-gen3-adas/recipes-multimedia/mmngr-module/files/0001-cached-buffers-support.patch @@ -0,0 +1,113 @@ +From ac078825fab834a524e45befa6a7f9de12317d16 Mon Sep 17 00:00:00 2001 +From: Andrey Dolnikov +Date: Wed, 14 Feb 2018 12:10:09 +0300 +Subject: [PATCH] mmngr: Add kernelheap cached buffers support. + +--- + libmmngr/mmngr/if/mmngr_if.c | 49 ++++++++++++++++++++++++++++-- + libmmngr/mmngr/include/mmngr_user_public.h | 4 +++ + 2 files changed, 50 insertions(+), 3 deletions(-) + +diff --git a/libmmngr/mmngr/if/mmngr_if.c b/libmmngr/mmngr/if/mmngr_if.c +index 670aa60..1096d14 100644 +--- a/libmmngr/mmngr/if/mmngr_if.c ++++ b/libmmngr/mmngr/if/mmngr_if.c +@@ -216,7 +216,7 @@ int mmngr_alloc_in_user_ext(MMNGR_ID *pid, size_t size, + goto exit; + } + +- if ((flag != MM_KERNELHEAP) && (flag != MM_CARVEOUT) ++ if ((flag != MM_KERNELHEAP) && (flag != MM_KERNELHEAP_CACHED) && (flag != MM_CARVEOUT) + && (flag != MM_CARVEOUT_SSP) && (flag != MM_CARVEOUT_LOSSY)) { + ret = R_MM_PARE; + goto exit; +@@ -243,7 +243,7 @@ int mmngr_alloc_in_user_ext(MMNGR_ID *pid, size_t size, + } + } + +- if (flag == MM_KERNELHEAP) { ++ if (flag == MM_KERNELHEAP || flag == MM_KERNELHEAP_CACHED) { + ret = mm_alloc_kh_in_user(pid, size, phard_addr, + puser_virt_addr, flag); + if (ret) +@@ -296,7 +296,7 @@ int mmngr_free_in_user_ext(MMNGR_ID id) + goto exit; + } + +- if (p.flag == MM_KERNELHEAP) { ++ if (p.flag == MM_KERNELHEAP || p.flag == MM_KERNELHEAP_CACHED) { + ret = mm_free_kh_in_user(id); + if (ret) + goto exit; +@@ -479,3 +479,46 @@ int mmngr_release_in_user(MMNGR_ID id) + ret = mmngr_release_in_user_ext(id); + return ret; + } ++ ++int mmngr_inval(MMNGR_ID id, size_t offset, size_t len) ++{ ++ int ret; ++ struct MM_CACHE_PARAM cachep; ++ ++ cachep.offset = offset; ++ cachep.len = len; ++ ++ ret = ioctl(id, MM_IOC_INVAL, &cachep); ++ if (ret) { ++ perror("MMI INVAL"); ++ ret = R_MM_FATAL; ++ goto exit; ++ } ++ ++ return R_MM_OK; ++ ++exit: ++ return ret; ++ ++} ++ ++int mmngr_flush(MMNGR_ID id, size_t offset, size_t len) ++{ ++ int ret; ++ struct MM_CACHE_PARAM cachep; ++ ++ cachep.offset = offset; ++ cachep.len = len; ++ ++ ret = ioctl(id, MM_IOC_FLUSH, &cachep); ++ if (ret) { ++ perror("MMI INVAL"); ++ ret = R_MM_FATAL; ++ goto exit; ++ } ++ ++ return R_MM_OK; ++ ++exit: ++ return ret; ++} +diff --git a/libmmngr/mmngr/include/mmngr_user_public.h b/libmmngr/mmngr/include/mmngr_user_public.h +index e4e0e2a..9fc0c0a 100644 +--- a/libmmngr/mmngr/include/mmngr_user_public.h ++++ b/libmmngr/mmngr/include/mmngr_user_public.h +@@ -54,6 +54,9 @@ int mmngr_share_in_user(MMNGR_ID *pid, + unsigned long *puser_virt_addr); + int mmngr_release_in_user(MMNGR_ID id); + ++int mmngr_inval(MMNGR_ID id, size_t offset, size_t len); ++int mmngr_flush(MMNGR_ID id, size_t offset, size_t len); ++ + #define R_MM_OK 0 + #define R_MM_FATAL -1 + #define R_MM_SEQE -2 +@@ -61,6 +64,7 @@ int mmngr_release_in_user(MMNGR_ID id); + #define R_MM_NOMEM -4 + + #define MMNGR_VA_SUPPORT MM_KERNELHEAP ++#define MMNGR_VA_SUPPORT_CACHED MM_KERNELHEAP_CACHED + #define MMNGR_PA_SUPPORT MM_CARVEOUT + #define MMNGR_PA_SUPPORT_SSP MM_CARVEOUT_SSP + #define MMNGR_PA_SUPPORT_LOSSY MM_CARVEOUT_LOSSY +-- +2.7.4 + diff --git a/meta-rcar-gen3-adas/recipes-multimedia/mmngr-module/mmngr-user-module.bbappend b/meta-rcar-gen3-adas/recipes-multimedia/mmngr-module/mmngr-user-module.bbappend new file mode 100644 index 0000000..93ac63d --- /dev/null +++ b/meta-rcar-gen3-adas/recipes-multimedia/mmngr-module/mmngr-user-module.bbappend @@ -0,0 +1,5 @@ +FILESEXTRAPATHS_prepend := "${THISDIR}/files:" + +SRC_URI_append = " \ + file://0001-cached-buffers-support.patch;patchdir=${WORKDIR}/git \ +" -- cgit 1.2.3-korg