From e2bbada9afb8710e91043b216a46ab4ec4fcb647 Mon Sep 17 00:00:00 2001
From: TheOfficialFloW
Date: Sat, 17 Feb 2018 13:27:04 +0100
Subject: Added inline ksceKernelCpuUnrestrictedMemcpy because this doesn't
 exist in newer FWs

---
 include/kernel/kernel/cpu.h | 37 ++++++++++++++++++++++++-------------
 1 file changed, 24 insertions(+), 13 deletions(-)

(limited to 'include/kernel')

diff --git a/include/kernel/kernel/cpu.h b/include/kernel/kernel/cpu.h
index 09d144d..f6b60f7 100644
--- a/include/kernel/kernel/cpu.h
+++ b/include/kernel/kernel/cpu.h
@@ -64,6 +64,30 @@ static inline void sceKernelCpuRestoreContext(int context[3])
 		asm volatile ("cpsie i" ::: "memory");
 }
 
+/**
+ * @brief      MMU permission bypassing memcpy
+ *
+ * This works by writing to the DACR before and after the memcpy.
+ *
+ * @param      dst   The destination
+ * @param[in]  src   The source
+ * @param[in]  len   The length
+ *
+ * @return     Zero on success.
+ */
+static inline int sceKernelCpuUnrestrictedMemcpy(void *dst, const void *src, size_t len)
+{
+	int prev_dacr;
+
+	asm ("mrc p15, 0, %0, c3, c0, 0" : "=r" (prev_dacr));
+	asm ("mcr p15, 0, %0, c3, c0, 0" :: "r" (0xFFFF0000));
+
+	memcpy(dst, src, len);
+
+	asm ("mcr p15, 0, %0, c3, c0, 0" :: "r" (prev_dacr));
+	return 0;
+}
+
 /**
  * @brief      Returns the CPU ID of the calling processor
  *
@@ -195,19 +219,6 @@ int sceKernelCpuIcacheInvalidateAll(void);
  */
 int sceKernelCpuIcacheAndL2WritebackInvalidateRange(const void *ptr, size_t len);
 
-/**
- * @brief      MMU permission bypassing memcpy
- *
- * This works by writing to the DACR before and after the memcpy.
- *
- * @param      dst   The destination
- * @param[in]  src   The source
- * @param[in]  len   The length
- *
- * @return     Zero on success.
- */
-int sceKernelCpuUnrestrictedMemcpy(void *dst, const void *src, size_t len);
-
 /**
  * @brief      Suspend all interrupts (disables IRQs)
  *
-- 
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