[igt-dev] [RFC PATCH i-g-t 1/2] tests/gem_userptr_blits: Refresh readonly-mmap-unsync exercise

[Janusz Krzysztofik]

Upgrade the subtest to use MMAP_GTT API v4 (aka MMAP_OFFSET),
dynamically examine each mapping type supported by i915 driver.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik at linux.intel.com>
---
 tests/i915/gem_userptr_blits.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/tests/i915/gem_userptr_blits.c b/tests/i915/gem_userptr_blits.c
index fcad374ef..efe34c512 100644
--- a/tests/i915/gem_userptr_blits.c
+++ b/tests/i915/gem_userptr_blits.c
@@ -1222,7 +1222,7 @@ static void sigjmp_handler(int sig)
 	siglongjmp(sigjmp, sig);
 }
 
-static void test_readonly_mmap(int i915)
+static void test_readonly_mmap(int i915, const struct mmap_offset *t)
 {
 	char *original, *result;
 	uint32_t handle;
@@ -1239,6 +1239,14 @@ static void test_readonly_mmap(int i915)
 	 * on the GPU as well.
 	 */
 
+	handle = gem_create(i915, PAGE_SIZE);
+	ptr = __gem_mmap_offset(i915, handle, 0, PAGE_SIZE,
+				PROT_READ | PROT_WRITE, t->type);
+	gem_close(i915, handle);
+	igt_require_f(ptr, "HW & kernel support for mmap-offset(%s)\n",
+		      t->name);
+	munmap(ptr, PAGE_SIZE);
+
 	igt_require(igt_setup_clflush());
 
 	sz = 16 << 12;
@@ -1252,11 +1260,11 @@ static void test_readonly_mmap(int i915)
 	igt_clflush_range(pages, sz);
 	original = g_compute_checksum_for_data(G_CHECKSUM_SHA1, pages, sz);
 
-	ptr = __gem_mmap__gtt(i915, handle, sz, PROT_WRITE);
+	ptr = __gem_mmap_offset(i915, handle, 0, sz, PROT_WRITE, t->type);
 	igt_assert(ptr == NULL);
 
 	/* Optional kernel support for GTT mmaps of userptr */
-	ptr = __gem_mmap__gtt(i915, handle, sz, PROT_READ);
+	ptr = __gem_mmap_offset(i915, handle, 0, sz, PROT_READ, t->type);
 	gem_close(i915, handle);
 
 	if (ptr) { /* Check that a write into the GTT readonly map fails */
@@ -2052,8 +2060,11 @@ igt_main_args("c:", NULL, help_str, opt_handler, NULL)
 		igt_subtest("readonly-unsync")
 			test_readonly(fd);
 
-		igt_subtest("readonly-mmap-unsync")
-			test_readonly_mmap(fd);
+		igt_describe("Examine mmap-offset mapping to read-only userptr");
+		igt_subtest_with_dynamic("readonly-mmap-unsync")
+			for_each_mmap_offset_type(fd, t)
+				igt_dynamic(t->name)
+					test_readonly_mmap(fd, t);
 
 		igt_subtest("readonly-pwrite-unsync")
 			test_readonly_pwrite(fd);
-- 
2.21.1