[PATCH igt v7 1/6] lib: Add gem_userptr and __gem_userptr helpers
Tiago Vignatti
tiago.vignatti at intel.com
Tue Dec 22 13:36:49 PST 2015
This patch moves userptr definitions and helpers implementation that were
locally in gem_userptr_benchmark and gem_userptr_blits to the library, so other
tests can make use of them as well. There's no functional changes.
v2: added __ function to differentiate when errors want to be handled back in
the caller; bring gem_userptr_sync back to gem_userptr_blits; added gtkdoc.
Signed-off-by: Tiago Vignatti <tiago.vignatti at intel.com>
---
benchmarks/gem_userptr_benchmark.c | 55 +++-----------------
lib/ioctl_wrappers.c | 41 +++++++++++++++
lib/ioctl_wrappers.h | 13 +++++
tests/gem_userptr_blits.c | 104 ++++++++++---------------------------
4 files changed, 86 insertions(+), 127 deletions(-)
diff --git a/benchmarks/gem_userptr_benchmark.c b/benchmarks/gem_userptr_benchmark.c
index 1eae7ff..f7716df 100644
--- a/benchmarks/gem_userptr_benchmark.c
+++ b/benchmarks/gem_userptr_benchmark.c
@@ -58,17 +58,6 @@
#define PAGE_SIZE 4096
#endif
-#define LOCAL_I915_GEM_USERPTR 0x33
-#define LOCAL_IOCTL_I915_GEM_USERPTR DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_USERPTR, struct local_i915_gem_userptr)
-struct local_i915_gem_userptr {
- uint64_t user_ptr;
- uint64_t user_size;
- uint32_t flags;
-#define LOCAL_I915_USERPTR_READ_ONLY (1<<0)
-#define LOCAL_I915_USERPTR_UNSYNCHRONIZED (1<<31)
- uint32_t handle;
-};
-
static uint32_t userptr_flags = LOCAL_I915_USERPTR_UNSYNCHRONIZED;
#define BO_SIZE (65536)
@@ -83,30 +72,6 @@ static void gem_userptr_test_synchronized(void)
userptr_flags = 0;
}
-static int gem_userptr(int fd, void *ptr, int size, int read_only, uint32_t *handle)
-{
- struct local_i915_gem_userptr userptr;
- int ret;
-
- userptr.user_ptr = (uintptr_t)ptr;
- userptr.user_size = size;
- userptr.flags = userptr_flags;
- if (read_only)
- userptr.flags |= LOCAL_I915_USERPTR_READ_ONLY;
-
- ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_USERPTR, &userptr);
- if (ret)
- ret = errno;
- igt_skip_on_f(ret == ENODEV &&
- (userptr_flags & LOCAL_I915_USERPTR_UNSYNCHRONIZED) == 0 &&
- !read_only,
- "Skipping, synchronized mappings with no kernel CONFIG_MMU_NOTIFIER?");
- if (ret == 0)
- *handle = userptr.handle;
-
- return ret;
-}
-
static void **handle_ptr_map;
static unsigned int num_handle_ptr_map;
@@ -144,8 +109,7 @@ static uint32_t create_userptr_bo(int fd, int size)
ret = posix_memalign(&ptr, PAGE_SIZE, size);
igt_assert(ret == 0);
- ret = gem_userptr(fd, (uint32_t *)ptr, size, 0, &handle);
- igt_assert(ret == 0);
+ gem_userptr(fd, (uint32_t *)ptr, size, 0, userptr_flags, &handle);
add_handle_ptr(handle, ptr);
return handle;
@@ -167,7 +131,7 @@ static int has_userptr(int fd)
assert(posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE) == 0);
oldflags = userptr_flags;
gem_userptr_test_unsynchronized();
- ret = gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle);
+ ret = __gem_userptr(fd, ptr, PAGE_SIZE, 0, userptr_flags, &handle);
userptr_flags = oldflags;
if (ret != 0) {
free(ptr);
@@ -379,9 +343,7 @@ static void test_impact_overlap(int fd, const char *prefix)
for (i = 0, p = block; i < nr_bos[subtest];
i++, p += PAGE_SIZE)
- ret = gem_userptr(fd, (uint32_t *)p, BO_SIZE, 0,
- &handles[i]);
- igt_assert(ret == 0);
+ gem_userptr(fd, (uint32_t *)p, BO_SIZE, 0, userptr_flags, &handles[i]);
}
if (nr_bos[subtest] > 0)
@@ -427,7 +389,6 @@ static void test_single(int fd)
char *ptr, *bo_ptr;
uint32_t handle = 0;
unsigned long iter = 0;
- int ret;
unsigned long map_size = BO_SIZE + PAGE_SIZE - 1;
ptr = mmap(NULL, map_size, PROT_READ | PROT_WRITE,
@@ -439,8 +400,7 @@ static void test_single(int fd)
start_test(test_duration_sec);
while (run_test) {
- ret = gem_userptr(fd, bo_ptr, BO_SIZE, 0, &handle);
- assert(ret == 0);
+ gem_userptr(fd, bo_ptr, BO_SIZE, 0, userptr_flags, &handle);
gem_close(fd, handle);
iter++;
}
@@ -456,7 +416,6 @@ static void test_multiple(int fd, unsigned int batch, int random)
uint32_t handles[10000];
int map[10000];
unsigned long iter = 0;
- int ret;
int i;
unsigned long map_size = batch * BO_SIZE + PAGE_SIZE - 1;
@@ -478,10 +437,8 @@ static void test_multiple(int fd, unsigned int batch, int random)
if (random)
igt_permute_array(map, batch, igt_exchange_int);
for (i = 0; i < batch; i++) {
- ret = gem_userptr(fd, bo_ptr + map[i] * BO_SIZE,
- BO_SIZE,
- 0, &handles[i]);
- assert(ret == 0);
+ gem_userptr(fd, bo_ptr + map[i] * BO_SIZE, BO_SIZE,
+ 0, userptr_flags, &handles[i]);
}
if (random)
igt_permute_array(map, batch, igt_exchange_int);
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index e348f26..6cad8a2 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -871,6 +871,47 @@ void gem_context_require_ban_period(int fd)
igt_require(has_ban_period);
}
+int __gem_userptr(int fd, void *ptr, int size, int read_only, uint32_t flags, uint32_t *handle)
+{
+ struct local_i915_gem_userptr userptr;
+ int ret;
+
+ memset(&userptr, 0, sizeof(userptr));
+ userptr.user_ptr = (uintptr_t)ptr;
+ userptr.user_size = size;
+ userptr.flags = flags;
+ if (read_only)
+ userptr.flags |= LOCAL_I915_USERPTR_READ_ONLY;
+
+ ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_USERPTR, &userptr);
+ if (ret)
+ ret = errno;
+ igt_skip_on_f(ret == ENODEV &&
+ (flags & LOCAL_I915_USERPTR_UNSYNCHRONIZED) == 0 &&
+ !read_only,
+ "Skipping, synchronized mappings with no kernel CONFIG_MMU_NOTIFIER?");
+ if (ret == 0)
+ *handle = userptr.handle;
+
+ return ret;
+}
+
+/**
+ * gem_userptr:
+ * @fd: open i915 drm file descriptor
+ * @ptr: userptr pointer to be passed
+ * @size: desired size of the buffer
+ * @read_only: specify whether userptr is opened read only
+ * @flags: other userptr flags
+ * @handle: returned handle for the object
+ *
+ * Returns userptr handle for the GEM object.
+ */
+void gem_userptr(int fd, void *ptr, int size, int read_only, uint32_t flags, uint32_t *handle)
+{
+ igt_assert_eq(__gem_userptr(fd, ptr, size, read_only, flags, handle), 0);
+}
+
/**
* gem_sw_finish:
* @fd: open i915 drm file descriptor
diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
index fe2f687..bb8a858 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -112,6 +112,19 @@ void gem_context_require_param(int fd, uint64_t param);
void gem_context_get_param(int fd, struct local_i915_gem_context_param *p);
void gem_context_set_param(int fd, struct local_i915_gem_context_param *p);
+#define LOCAL_I915_GEM_USERPTR 0x33
+#define LOCAL_IOCTL_I915_GEM_USERPTR DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_USERPTR, struct local_i915_gem_userptr)
+struct local_i915_gem_userptr {
+ uint64_t user_ptr;
+ uint64_t user_size;
+ uint32_t flags;
+#define LOCAL_I915_USERPTR_READ_ONLY (1<<0)
+#define LOCAL_I915_USERPTR_UNSYNCHRONIZED (1<<31)
+ uint32_t handle;
+};
+void gem_userptr(int fd, void *ptr, int size, int read_only, uint32_t flags, uint32_t *handle);
+int __gem_userptr(int fd, void *ptr, int size, int read_only, uint32_t flags, uint32_t *handle);
+
void gem_sw_finish(int fd, uint32_t handle);
bool gem_bo_busy(int fd, uint32_t handle);
diff --git a/tests/gem_userptr_blits.c b/tests/gem_userptr_blits.c
index 6d38260..95d7ca2 100644
--- a/tests/gem_userptr_blits.c
+++ b/tests/gem_userptr_blits.c
@@ -61,17 +61,6 @@
#define PAGE_SIZE 4096
#endif
-#define LOCAL_I915_GEM_USERPTR 0x33
-#define LOCAL_IOCTL_I915_GEM_USERPTR DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_USERPTR, struct local_i915_gem_userptr)
-struct local_i915_gem_userptr {
- uint64_t user_ptr;
- uint64_t user_size;
- uint32_t flags;
-#define LOCAL_I915_USERPTR_READ_ONLY (1<<0)
-#define LOCAL_I915_USERPTR_UNSYNCHRONIZED (1<<31)
- uint32_t handle;
-};
-
static uint32_t userptr_flags = LOCAL_I915_USERPTR_UNSYNCHRONIZED;
#define WIDTH 512
@@ -89,32 +78,6 @@ static void gem_userptr_test_synchronized(void)
userptr_flags = 0;
}
-static int gem_userptr(int fd, void *ptr, int size, int read_only, uint32_t *handle)
-{
- struct local_i915_gem_userptr userptr;
- int ret;
-
- memset(&userptr, 0, sizeof(userptr));
- userptr.user_ptr = (uintptr_t)ptr;
- userptr.user_size = size;
- userptr.flags = userptr_flags;
- if (read_only)
- userptr.flags |= LOCAL_I915_USERPTR_READ_ONLY;
-
- ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_USERPTR, &userptr);
- if (ret)
- ret = errno;
- igt_skip_on_f(ret == ENODEV &&
- (userptr_flags & LOCAL_I915_USERPTR_UNSYNCHRONIZED) == 0 &&
- !read_only,
- "Skipping, synchronized mappings with no kernel CONFIG_MMU_NOTIFIER?");
- if (ret == 0)
- *handle = userptr.handle;
-
- return ret;
-}
-
-
static void gem_userptr_sync(int fd, uint32_t handle)
{
gem_set_domain(fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
@@ -289,10 +252,9 @@ static uint32_t
create_userptr(int fd, uint32_t val, uint32_t *ptr)
{
uint32_t handle;
- int i, ret;
+ int i;
- ret = gem_userptr(fd, ptr, sizeof(linear), 0, &handle);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, ptr, sizeof(linear), 0, userptr_flags, &handle);
igt_assert(handle != 0);
/* Fill the BO with dwords starting at val */
@@ -363,7 +325,6 @@ static uint32_t create_userptr_bo(int fd, uint64_t size)
{
void *ptr;
uint32_t handle;
- int ret;
ptr = mmap(NULL, size,
PROT_READ | PROT_WRITE,
@@ -371,8 +332,7 @@ static uint32_t create_userptr_bo(int fd, uint64_t size)
-1, 0);
igt_assert(ptr != MAP_FAILED);
- ret = gem_userptr(fd, (uint32_t *)ptr, size, 0, &handle);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, (uint32_t *)ptr, size, 0, userptr_flags, &handle);
add_handle_ptr(handle, ptr, size);
return handle;
@@ -450,7 +410,7 @@ static int has_userptr(int fd)
igt_assert(posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE) == 0);
oldflags = userptr_flags;
gem_userptr_test_unsynchronized();
- ret = gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle);
+ ret = __gem_userptr(fd, ptr, PAGE_SIZE, 0, userptr_flags, &handle);
userptr_flags = oldflags;
if (ret != 0) {
free(ptr);
@@ -509,7 +469,7 @@ static int test_access_control(int fd)
igt_assert(posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE) == 0);
- ret = gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle);
+ ret = __gem_userptr(fd, ptr, PAGE_SIZE, 0, userptr_flags, &handle);
if (ret == 0)
gem_close(fd, handle);
free(ptr);
@@ -524,11 +484,9 @@ static int test_access_control(int fd)
static int test_invalid_null_pointer(int fd)
{
uint32_t handle;
- int ret;
/* NULL pointer. */
- ret = gem_userptr(fd, NULL, PAGE_SIZE, 0, &handle);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, NULL, PAGE_SIZE, 0, userptr_flags, &handle);
copy(fd, handle, handle, ~0); /* QQQ Precise errno? */
gem_close(fd, handle);
@@ -540,7 +498,6 @@ static int test_invalid_gtt_mapping(int fd)
{
uint32_t handle, handle2;
void *ptr;
- int ret;
/* GTT mapping */
handle = create_bo(fd, 0);
@@ -550,8 +507,7 @@ static int test_invalid_gtt_mapping(int fd)
igt_assert(((unsigned long)ptr & (PAGE_SIZE - 1)) == 0);
igt_assert((sizeof(linear) & (PAGE_SIZE - 1)) == 0);
- ret = gem_userptr(fd, ptr, sizeof(linear), 0, &handle2);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, ptr, sizeof(linear), 0, userptr_flags, &handle2);
copy(fd, handle2, handle2, ~0); /* QQQ Precise errno? */
gem_close(fd, handle2);
@@ -594,8 +550,7 @@ static void test_forked_access(int fd)
#ifdef MADV_DONTFORK
ret |= madvise(ptr1, sizeof(linear), MADV_DONTFORK);
#endif
- ret |= gem_userptr(fd, ptr1, sizeof(linear), 0, &handle1);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, ptr1, sizeof(linear), 0, userptr_flags, &handle1);
igt_assert(ptr1);
igt_assert(handle1);
@@ -603,8 +558,7 @@ static void test_forked_access(int fd)
#ifdef MADV_DONTFORK
ret |= madvise(ptr2, sizeof(linear), MADV_DONTFORK);
#endif
- ret |= gem_userptr(fd, ptr2, sizeof(linear), 0, &handle2);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, ptr2, sizeof(linear), 0, userptr_flags, &handle2);
igt_assert(ptr2);
igt_assert(handle2);
@@ -651,8 +605,7 @@ static int test_forbidden_ops(int fd)
igt_assert(posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE) == 0);
- ret = gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, ptr, PAGE_SIZE, 0, userptr_flags, &handle);
/* pread/pwrite are not always forbidden, but when they
* are they should fail with EINVAL.
@@ -839,19 +792,19 @@ static int test_usage_restrictions(int fd)
igt_assert(posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE * 2) == 0);
/* Address not aligned. */
- ret = gem_userptr(fd, (char *)ptr + 1, PAGE_SIZE, 0, &handle);
+ ret = __gem_userptr(fd, (char *)ptr + 1, PAGE_SIZE, 0, userptr_flags, &handle);
igt_assert_neq(ret, 0);
/* Size not rounded to page size. */
- ret = gem_userptr(fd, ptr, PAGE_SIZE - 1, 0, &handle);
+ ret = __gem_userptr(fd, ptr, PAGE_SIZE - 1, 0, userptr_flags, &handle);
igt_assert_neq(ret, 0);
/* Both wrong. */
- ret = gem_userptr(fd, (char *)ptr + 1, PAGE_SIZE - 1, 0, &handle);
+ ret = __gem_userptr(fd, (char *)ptr + 1, PAGE_SIZE - 1, 0, userptr_flags, &handle);
igt_assert_neq(ret, 0);
/* Read-only not supported. */
- ret = gem_userptr(fd, (char *)ptr, PAGE_SIZE, 1, &handle);
+ ret = __gem_userptr(fd, (char *)ptr, PAGE_SIZE, 1, userptr_flags, &handle);
igt_assert_neq(ret, 0);
free(ptr);
@@ -873,7 +826,7 @@ static int test_create_destroy(int fd, int time)
for (n = 0; n < 1000; n++) {
igt_assert(posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE) == 0);
- do_or_die(gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle));
+ do_or_die(__gem_userptr(fd, ptr, PAGE_SIZE, 0, userptr_flags, &handle));
gem_close(fd, handle);
free(ptr);
@@ -1065,41 +1018,40 @@ static void test_overlap(int fd, int expected)
igt_assert(posix_memalign((void *)&ptr, PAGE_SIZE, PAGE_SIZE * 3) == 0);
- ret = gem_userptr(fd, ptr + PAGE_SIZE, PAGE_SIZE, 0, &handle);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, ptr + PAGE_SIZE, PAGE_SIZE, 0, userptr_flags, &handle);
/* before, no overlap */
- ret = gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle2);
+ ret = __gem_userptr(fd, ptr, PAGE_SIZE, 0, userptr_flags, &handle2);
if (ret == 0)
gem_close(fd, handle2);
igt_assert_eq(ret, 0);
/* after, no overlap */
- ret = gem_userptr(fd, ptr + PAGE_SIZE * 2, PAGE_SIZE, 0, &handle2);
+ ret = __gem_userptr(fd, ptr + PAGE_SIZE * 2, PAGE_SIZE, 0, userptr_flags, &handle2);
if (ret == 0)
gem_close(fd, handle2);
igt_assert_eq(ret, 0);
/* exactly overlapping */
- ret = gem_userptr(fd, ptr + PAGE_SIZE, PAGE_SIZE, 0, &handle2);
+ ret = __gem_userptr(fd, ptr + PAGE_SIZE, PAGE_SIZE, 0, userptr_flags, &handle2);
if (ret == 0)
gem_close(fd, handle2);
igt_assert(ret == 0 || ret == expected);
/* start overlaps */
- ret = gem_userptr(fd, ptr, PAGE_SIZE * 2, 0, &handle2);
+ ret = __gem_userptr(fd, ptr, PAGE_SIZE * 2, 0, userptr_flags, &handle2);
if (ret == 0)
gem_close(fd, handle2);
igt_assert(ret == 0 || ret == expected);
/* end overlaps */
- ret = gem_userptr(fd, ptr + PAGE_SIZE, PAGE_SIZE * 2, 0, &handle2);
+ ret = __gem_userptr(fd, ptr + PAGE_SIZE, PAGE_SIZE * 2, 0, userptr_flags, &handle2);
if (ret == 0)
gem_close(fd, handle2);
igt_assert(ret == 0 || ret == expected);
/* subsumes */
- ret = gem_userptr(fd, ptr, PAGE_SIZE * 3, 0, &handle2);
+ ret = __gem_userptr(fd, ptr, PAGE_SIZE * 3, 0, userptr_flags, &handle2);
if (ret == 0)
gem_close(fd, handle2);
igt_assert(ret == 0 || ret == expected);
@@ -1124,8 +1076,7 @@ static void test_unmap(int fd, int expected)
bo_ptr = (char *)ALIGN((unsigned long)ptr, PAGE_SIZE);
for (i = 0; i < num_obj; i++, bo_ptr += sizeof(linear)) {
- ret = gem_userptr(fd, bo_ptr, sizeof(linear), 0, &bo[i]);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, bo_ptr, sizeof(linear), 0, userptr_flags, &bo[i]);
}
bo[num_obj] = create_bo(fd, 0);
@@ -1159,8 +1110,7 @@ static void test_unmap_after_close(int fd)
bo_ptr = (char *)ALIGN((unsigned long)ptr, PAGE_SIZE);
for (i = 0; i < num_obj; i++, bo_ptr += sizeof(linear)) {
- ret = gem_userptr(fd, bo_ptr, sizeof(linear), 0, &bo[i]);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, bo_ptr, sizeof(linear), 0, userptr_flags, &bo[i]);
}
bo[num_obj] = create_bo(fd, 0);
@@ -1230,8 +1180,7 @@ static void test_stress_mm(int fd)
igt_assert_eq(ret, 0);
while (loops--) {
- ret = gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle);
- igt_assert_eq(ret, 0);
+ gem_userptr(fd, ptr, PAGE_SIZE, 0, userptr_flags, &handle);
gem_close(fd, handle);
}
@@ -1265,8 +1214,7 @@ static void *mm_userptr_close_thread(void *data)
while (!t->stop) {
pthread_mutex_unlock(&t->mutex);
for (int i = 0; i < num_handles; i++)
- igt_assert_eq(gem_userptr(t->fd, t->ptr, PAGE_SIZE, 0, &handle[i]),
- 0);
+ gem_userptr(t->fd, t->ptr, PAGE_SIZE, 0, userptr_flags, &handle[i]);
for (int i = 0; i < num_handles; i++)
gem_close(t->fd, handle[i]);
pthread_mutex_lock(&t->mutex);
--
2.1.4
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