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From ac078825fab834a524e45befa6a7f9de12317d16 Mon Sep 17 00:00:00 2001
From: Andrey Dolnikov <andrey.dolnikov@cogentembedded.com>
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
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