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| author |   Denys Dmytriyenko <denis@denix.org> | 2022-05-05 21:51:26 +0000 |
|---|---|---|
| committer |   Armin Kuster <akuster808@gmail.com> | 2022-05-17 05:57:10 -0700 |
| commit | b095a248cc9bcca613ff9277ecb8a704cde084e8 (patch) | |
| tree | 3716dbd0ee9ee5e5d014cdfbd542e9ee0d90b608 | |
| parent | c8f5b7a278ad83e4c208e2aa56fa6d5542a3df6c (diff) | |
| download | meta-openembedded-contrib-b095a248cc9bcca613ff9277ecb8a704cde084e8.tar.gz | |
devmem2: add support for different page sizes
Instead of hardcoding 4K page size, query the system and use the value for
memory mapping.
Signed-off-by: Denys Dmytriyenko <denis@denix.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 3af1d119de53a92f4d0fbfb8a61f999d1d541253)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
| -rw-r--r-- | meta-oe/recipes-support/devmem2/devmem2.bb | 4 | ||||
| -rw-r--r-- | meta-oe/recipes-support/devmem2/devmem2/0001-devmem2-support-different-page-sizes-at-run-time.patch | 35 |
2 files changed, 38 insertions, 1 deletions
diff --git a/meta-oe/recipes-support/devmem2/devmem2.bb b/meta-oe/recipes-support/devmem2/devmem2.bb index c6b8df5e47..ba7aad8ab9 100644 --- a/meta-oe/recipes-support/devmem2/devmem2.bb +++ b/meta-oe/recipes-support/devmem2/devmem2.bb @@ -5,7 +5,9 @@ PR = "r7" SRC_URI = "http://www.free-electrons.com/pub/mirror/devmem2.c;downloadfilename=devmem2-new.c \ file://devmem2-fixups-2.patch;apply=yes;striplevel=0 \ - file://0001-devmem.c-ensure-word-is-32-bit-and-add-support-for-6.patch" + file://0001-devmem.c-ensure-word-is-32-bit-and-add-support-for-6.patch \ + file://0001-devmem2-support-different-page-sizes-at-run-time.patch \ +" S = "${WORKDIR}" diff --git a/meta-oe/recipes-support/devmem2/devmem2/0001-devmem2-support-different-page-sizes-at-run-time.patch b/meta-oe/recipes-support/devmem2/devmem2/0001-devmem2-support-different-page-sizes-at-run-time.patch new file mode 100644 index 0000000000..0da0732c57 --- /dev/null +++ b/meta-oe/recipes-support/devmem2/devmem2/0001-devmem2-support-different-page-sizes-at-run-time.patch @@ -0,0 +1,35 @@ +From 0f6af48b2fbc71ec8abe862d3e9eb6da7b03538b Mon Sep 17 00:00:00 2001 +From: Denys Dmytriyenko <denys@ti.com> +Date: Wed, 8 Aug 2018 14:38:00 -0400 +Subject: [PATCH] devmem2: support different page sizes at run-time + +Signed-off-by: Denys Dmytriyenko <denys@ti.com> +--- + devmem2.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/devmem2.c b/devmem2.c +index 68131b2..76af2d6 100644 +--- a/devmem2.c ++++ b/devmem2.c +@@ -53,8 +53,6 @@ + #define FATAL do { fprintf(stderr, "Error at line %d, file %s (%d) [%s]\n", \ + __LINE__, __FILE__, errno, strerror(errno)); exit(1); } while(0) + +-#define MAP_SIZE 4096UL +-#define MAP_MASK (MAP_SIZE - 1) + + static inline void *fixup_addr(void *addr, size_t size); + +@@ -66,6 +64,8 @@ int main(int argc, char **argv) { + int access_type = 'w'; + char fmt_str[128]; + size_t data_size; ++ unsigned long MAP_SIZE = sysconf(_SC_PAGE_SIZE); ++ unsigned long MAP_MASK = (MAP_SIZE - 1); + + if(argc < 2) { + fprintf(stderr, "\nUsage:\t%s { address } [ type [ data ] ]\n" +-- +2.7.4 + |