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Remove deprecated patch
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1 changed files with 0 additions and 36 deletions
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@ -1,36 +0,0 @@
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From e6a2123ce9131a740f96e58004d76890d6b56a3f Mon Sep 17 00:00:00 2001
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From: Dongjin Kim <tobetter@gmail.com>
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Date: Fri, 29 Jun 2018 19:48:17 +0900
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Subject: [PATCH] ODROID-C2: gpu/arm: hack to force the memory page writable
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This patch is the hack to force the memory pages allocated by the ump driver
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to be writable such that they cannot have an error 'permission denied' when
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'mmap()' is called.
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Change-Id: I6917b0c36d93b0bf24a5a81d68c46c1802e2f9a5
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Signed-off-by: Dongjin Kim <tobetter@gmail.com>
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---
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drivers/gpu/arm/ump/linux/ump_kernel_linux.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/drivers/gpu/arm/ump/linux/ump_kernel_linux.c b/drivers/gpu/arm/ump/linux/ump_kernel_linux.c
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index e162c85cbd44f..56c3611856523 100755
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--- a/drivers/gpu/arm/ump/linux/ump_kernel_linux.c
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+++ b/drivers/gpu/arm/ump/linux/ump_kernel_linux.c
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@@ -321,10 +321,16 @@ static int ump_file_ioctl(struct inode *inode, struct file *filp, unsigned int c
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break;
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case UMP_IOC_ALLOCATE :
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+#if defined(CONFIG_ARCH_MESON64_ODROIDC2)
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+ mapping_allow_writable(filp->f_mapping);
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+#endif
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err = ump_allocate_wrapper((u32 __user *)argument, session_data);
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break;
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case UMP_IOC_RELEASE:
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+#if defined(CONFIG_ARCH_MESON64_ODROIDC2)
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+ mapping_deny_writable(filp->f_mapping);
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+#endif
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err = ump_release_wrapper((u32 __user *)argument, session_data);
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break;
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