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lib: Tidy presentations of pread/pwrite failures

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Make the assertion failure message readable if gem_read or gem_write
fail.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2016-04-11 07:40:11 +01:00
parent c46f3c341c
commit 4a3fa3532a
1 changed files with 35 additions and 16 deletions
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51
lib/ioctl_wrappers.c
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@ -308,6 +308,23 @@ void gem_close(int fd, uint32_t handle)
do_ioctl(fd, DRM_IOCTL_GEM_CLOSE, &close_bo);
}
static int __gem_write(int fd, uint32_t handle, uint64_t offset, const void *buf, uint64_t length)
{
struct drm_i915_gem_pwrite gem_pwrite;
int err;
memset(&gem_pwrite, 0, sizeof(gem_pwrite));
gem_pwrite.handle = handle;
gem_pwrite.offset = offset;
gem_pwrite.size = length;
gem_pwrite.data_ptr = (uintptr_t)buf;
err = 0;
if (drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite))
err = -errno;
return err;
}
/**
* gem_write:
* @fd: open i915 drm file descriptor
@ -321,16 +338,25 @@ void gem_close(int fd, uint32_t handle)
*/
void gem_write(int fd, uint32_t handle, uint64_t offset, const void *buf, uint64_t length)
{
struct drm_i915_gem_pwrite gem_pwrite;
memset(&gem_pwrite, 0, sizeof(gem_pwrite));
gem_pwrite.handle = handle;
gem_pwrite.offset = offset;
gem_pwrite.size = length;
gem_pwrite.data_ptr = (uintptr_t)buf;
do_ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite);
igt_assert_eq(__gem_write(fd, handle, offset, buf, length), 0);
}
static int __gem_read(int fd, uint32_t handle, uint64_t offset, void *buf, uint64_t length)
{
struct drm_i915_gem_pread gem_pread;
int err;
memset(&gem_pread, 0, sizeof(gem_pread));
gem_pread.handle = handle;
gem_pread.offset = offset;
gem_pread.size = length;
gem_pread.data_ptr = (uintptr_t)buf;
err = 0;
if (drmIoctl(fd, DRM_IOCTL_I915_GEM_PREAD, &gem_pread))
err = -errno;
return err;
}
/**
* gem_read:
* @fd: open i915 drm file descriptor
@ -344,14 +370,7 @@ void gem_write(int fd, uint32_t handle, uint64_t offset, const void *buf, uint64
*/
void gem_read(int fd, uint32_t handle, uint64_t offset, void *buf, uint64_t length)
{
struct drm_i915_gem_pread gem_pread;
memset(&gem_pread, 0, sizeof(gem_pread));
gem_pread.handle = handle;
gem_pread.offset = offset;
gem_pread.size = length;
gem_pread.data_ptr = (uintptr_t)buf;
do_ioctl(fd, DRM_IOCTL_I915_GEM_PREAD, &gem_pread);
igt_assert_eq(__gem_read(fd, handle, offset, buf, length), 0);
}
/**