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Make gem_mmap__{cpu,gtt,wc}() assert on failure

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Rename the current gem_mmap__{cpu,gtt,wc}() functions into
__gem_mmap__{cpu,gtt,wc}(), and add back wrappers with the original name
that assert that the pointer is valid. Most callers will expect a valid
pointer and shouldn't have to bother with failures.

To avoid changing anything (yet), sed 's/gem_mmap__/__gem_mmap__/g'
over the entire codebase.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Stochastically-reviwewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Ville Syrjälä
2015-10-09 18:29:28 +03:00
parent 106fe21373
commit b8a77dd6c8
52 changed files with 212 additions and 152 deletions
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tests/gem_madvise.c
+2 -2
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@@ -63,7 +63,7 @@ dontneed_before_mmap(void)
handle = gem_create(fd, OBJECT_SIZE);
gem_madvise(fd, handle, I915_MADV_DONTNEED);
ptr = gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
ptr = __gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
igt_assert(ptr == NULL);
igt_assert(errno == EFAULT);
close(fd);
@@ -77,7 +77,7 @@ dontneed_after_mmap(void)
char *ptr;
handle = gem_create(fd, OBJECT_SIZE);
ptr = gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
ptr = __gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
igt_assert(ptr);
gem_madvise(fd, handle, I915_MADV_DONTNEED);
close(fd);