[igt-dev] [PATCH i-g-t v2] lib: Don't call igt_require_fb_modifiers() when no modifier

[<sunpeng.li@amd.com>]

From: Deepak Rawat <drawat@vmware.com>

vmwgfx and amdgpu doesn't support fb modifiers, yet kms_addfb() requires
modifier support. Since many tests don't need this to run, the
requirement can be made less broad.

Therefore, tighten the requirement to cases where modifiers are actually
needed.

v2:
* In create_fb() calls to kms_addfb(), remove the modifier flag iff the
  driver doesn't support modifiers and the modifer is 0
* Don't modify the flag in kms_addfb().

Signed-off-by: Deepak Rawat <drawat@vmware.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
---
 lib/igt_fb.c         |  7 +++++--
 lib/ioctl_wrappers.c | 25 +++++++++++++++----------
 lib/ioctl_wrappers.h |  1 +
 3 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index 35be2e8..5b1ece6 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -913,6 +913,7 @@ igt_create_fb_with_bo_size(int fd, int width, int height,
 	/* FIXME allow the caller to pass these in */
 	enum igt_color_encoding color_encoding = IGT_COLOR_YCBCR_BT709;
 	enum igt_color_range color_range = IGT_COLOR_YCBCR_LIMITED_RANGE;
+	uint32_t flags = 0;
 
 	fb_init(fb, fd, width, height, format, tiling,
 		color_encoding, color_range);
@@ -931,11 +932,13 @@ igt_create_fb_with_bo_size(int fd, int width, int height,
 	igt_debug("%s(handle=%d, pitch=%d)\n",
 		  __func__, fb->gem_handle, fb->strides[0]);
 
+	if (fb->tiling || igt_has_fb_modifiers(fd))
+		flags = LOCAL_DRM_MODE_FB_MODIFIERS;
+
 	do_or_die(__kms_addfb(fb->fd, fb->gem_handle,
 			      fb->width, fb->height,
 			      fb->drm_format, fb->tiling,
-			      fb->strides, fb->offsets, fb->num_planes,
-			      LOCAL_DRM_MODE_FB_MODIFIERS,
+			      fb->strides, fb->offsets, fb->num_planes, flags,
 			      &fb->fb_id));
 
 	return fb->fb_id;
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index 0929c43..b269f93 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -1646,14 +1646,7 @@ void prime_sync_end(int dma_buf_fd, bool write)
 	do_ioctl(dma_buf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_end);
 }
 
-/**
- * igt_require_fb_modifiers:
- * @fd: Open DRM file descriptor.
- *
- * Requires presence of DRM_CAP_ADDFB2_MODIFIERS.
- */
-void igt_require_fb_modifiers(int fd)
-{
+bool igt_has_fb_modifiers(int fd) {
 	static bool has_modifiers, cap_modifiers_tested;
 
 	if (!cap_modifiers_tested) {
@@ -1666,7 +1659,18 @@ void igt_require_fb_modifiers(int fd)
 		cap_modifiers_tested = true;
 	}
 
-	igt_require(has_modifiers);
+	return has_modifiers;
+}
+
+/**
+ * igt_require_fb_modifiers:
+ * @fd: Open DRM file descriptor.
+ *
+ * Requires presence of DRM_CAP_ADDFB2_MODIFIERS.
+ */
+void igt_require_fb_modifiers(int fd)
+{
+	igt_require(igt_has_fb_modifiers(fd));
 }
 
 int __kms_addfb(int fd, uint32_t handle,
@@ -1678,7 +1682,8 @@ int __kms_addfb(int fd, uint32_t handle,
 	struct drm_mode_fb_cmd2 f;
 	int ret, i;
 
-	igt_require_fb_modifiers(fd);
+	if (modifier || flags & DRM_MODE_FB_MODIFIERS)
+		igt_require_fb_modifiers(fd);
 
 	memset(&f, 0, sizeof(f));
 
diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
index c4e1956..b22b36b 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -227,6 +227,7 @@ struct local_drm_mode_fb_cmd2 {
 
 #define LOCAL_DRM_CAP_ADDFB2_MODIFIERS	0x10
 
+bool igt_has_fb_modifiers(int fd);
 void igt_require_fb_modifiers(int fd);
 
 /**
-- 
2.7.4

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