The patch titled
Subject: lib/test_bitmap.c: add for_each_set_clump test cases
has been removed from the -mm tree. Its filename was
lib-test_bitmapc-add-for_each_set_clump-test-cases.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
From: Syed Nayyar Waris <syednwaris@xxxxxxxxx>
Subject: lib/test_bitmap.c: add for_each_set_clump test cases
The introduction of the generic for_each_set_clump macro need test cases
to verify the implementation. This patch adds test cases for scenarios in
which clump sizes are 8 bits, 24 bits, 30 bits and 6 bits. The cases
contain situations where clump is getting split at the word boundary and
also when zeroes are present in the start and middle of bitmap.
[akpm@xxxxxxxxxxxxxxxxxxxx: coding style fixes]
Link: https://lkml.kernel.org/r/bf4d78db5d56a6b22e68a4ecb24d4cb09d1a3124.1603055402.git.syednwaris@xxxxxxxxx
Signed-off-by: Syed Nayyar Waris <syednwaris@xxxxxxxxx>
Signed-off-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/test_bitmap.c | 143 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 143 insertions(+)
--- a/lib/test_bitmap.c~lib-test_bitmapc-add-for_each_set_clump-test-cases
+++ a/lib/test_bitmap.c
@@ -155,6 +155,37 @@ static bool __init __check_eq_clump8(con
return true;
}
+static bool __init __check_eq_clump(const char *srcfile, unsigned int line,
+ const unsigned int offset,
+ const unsigned int size,
+ const unsigned long *const clump_exp,
+ const unsigned long *const clump,
+ const unsigned long clump_size)
+{
+ unsigned long exp;
+
+ if (offset >= size) {
+ pr_warn("[%s:%u] bit offset for clump out-of-bounds: expected less than %u, got %u\n",
+ srcfile, line, size, offset);
+ return false;
+ }
+
+ exp = clump_exp[offset / clump_size];
+ if (!exp) {
+ pr_warn("[%s:%u] bit offset for zero clump: expected nonzero clump, got bit offset %u with clump value 0",
+ srcfile, line, offset);
+ return false;
+ }
+
+ if (*clump != exp) {
+ pr_warn("[%s:%u] expected clump value of 0x%lX, got clump value of 0x%lX",
+ srcfile, line, exp, *clump);
+ return false;
+ }
+
+ return true;
+}
+
#define __expect_eq(suffix, ...) \
({ \
int result = 0; \
@@ -172,6 +203,7 @@ static bool __init __check_eq_clump8(con
#define expect_eq_pbl(...) __expect_eq(pbl, ##__VA_ARGS__)
#define expect_eq_u32_array(...) __expect_eq(u32_array, ##__VA_ARGS__)
#define expect_eq_clump8(...) __expect_eq(clump8, ##__VA_ARGS__)
+#define expect_eq_clump(...) __expect_eq(clump, ##__VA_ARGS__)
static void __init test_zero_clear(void)
{
@@ -530,6 +562,28 @@ static void noinline __init test_mem_opt
}
}
+static const unsigned long clump_bitmap_data[] __initconst = {
+ 0x38000201,
+ 0x05ff0f38,
+ 0xeffedcba,
+ 0xbbbbabcd,
+ 0x000000aa,
+ 0x000000aa,
+ 0x00ff0000,
+ 0xaaaaaa00,
+ 0xff000000,
+ 0x00aa0000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x0f000000,
+ 0x00ff0000,
+ 0xaaaaaa00,
+ 0xff000000,
+ 0x00aa0000,
+ 0x00000ac0,
+};
+
static const unsigned char clump_exp[] __initconst = {
0x01, /* 1 bit set */
0x02, /* non-edge 1 bit set */
@@ -541,6 +595,94 @@ static const unsigned char clump_exp[] _
0x05, /* non-adjacent 2 bits set */
};
+static const unsigned long clump_exp1[] __initconst = {
+ 0x01, /* 1 bit set */
+ 0x02, /* non-edge 1 bit set */
+ 0x00, /* zero bits set */
+ 0x38, /* 3 bits set across 4-bit boundary */
+ 0x38, /* Repeated clump */
+ 0x0F, /* 4 bits set */
+ 0xFF, /* all bits set */
+ 0x05, /* non-adjacent 2 bits set */
+};
+
+static const unsigned long clump_exp2[] __initconst = {
+ 0xfedcba, /* 24 bits */
+ 0xabcdef,
+ 0xaabbbb, /* Clump split between 2 words */
+ 0x000000, /* zeroes in between */
+ 0x0000aa,
+ 0x000000,
+ 0x0000ff,
+ 0xaaaaaa,
+ 0x000000,
+ 0x0000ff,
+};
+
+static const unsigned long clump_exp3[] __initconst = {
+ 0x00000000, /* starting with 0s*/
+ 0x00000000, /* All 0s */
+ 0x00000000,
+ 0x00000000,
+ 0x3f00000f, /* Non zero set */
+ 0x2aa80003,
+ 0x00000aaa,
+ 0x00003fc0,
+};
+
+static const unsigned long clump_exp4[] __initconst = {
+ 0x00,
+ 0x2b,
+};
+
+struct clump_test_data_params {
+ DECLARE_BITMAP(data, 256);
+ unsigned long count;
+ unsigned long offset;
+ unsigned long limit;
+ unsigned long clump_size;
+ unsigned long const *exp;
+};
+
+static struct clump_test_data_params clump_test_data[] __initdata =
+ { {{0}, 2, 0, 64, 8, clump_exp1},
+ {{0}, 8, 2, 240, 24, clump_exp2},
+ {{0}, 8, 10, 240, 30, clump_exp3},
+ {{0}, 1, 18, 18, 6, clump_exp4} };
+
+static void __init prepare_test_data(unsigned int index)
+{
+ int i;
+ unsigned long width = 0;
+
+ for (i = 0; i < clump_test_data[index].count; i++) {
+ bitmap_set_value(clump_test_data[index].data,
+ clump_bitmap_data[(clump_test_data[index].offset)++], width, 32);
+ width += 32;
+ }
+}
+
+static void __init execute_for_each_set_clump_test(unsigned int index)
+{
+ unsigned long start, clump;
+
+ for_each_set_clump(start, clump, clump_test_data[index].data,
+ clump_test_data[index].limit,
+ clump_test_data[index].clump_size)
+ expect_eq_clump(start, clump_test_data[index].limit, clump_test_data[index].exp,
+ &clump, clump_test_data[index].clump_size);
+}
+
+static void __init test_for_each_set_clump(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(clump_test_data); i++) {
+ prepare_test_data(i);
+ execute_for_each_set_clump_test(i);
+ }
+}
+
static void __init test_for_each_set_clump8(void)
{
#define CLUMP_EXP_NUMBITS 64
@@ -631,6 +773,7 @@ static void __init selftest(void)
test_bitmap_parselist();
test_mem_optimisations();
test_for_each_set_clump8();
+ test_for_each_set_clump();
test_bitmap_cut();
}
_
Patches currently in -mm which might be from syednwaris@xxxxxxxxx are
gpio-thunderx-utilize-for_each_set_clump-macro.patch
gpio-xilinx-utilize-generic-bitmap_get_value-and-_set_value.patch
