[PATCH xf86-video-amdgpu] Improve AMDGPUPreInitAccel_KMS log messages

[michel@xxxxxxxxxxx (Michel Dänzer)]

From: Michel Dänzer <michel.daenzer@xxxxxxx>

Now it should always be clear in the log file why acceleration isn't
enabled.

Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/amdgpu_glamor.c |  3 ---
 src/amdgpu_kms.c    | 23 +++++++++++++----------
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/src/amdgpu_glamor.c b/src/amdgpu_glamor.c
index 5583cd382..197592aa0 100644
--- a/src/amdgpu_glamor.c
+++ b/src/amdgpu_glamor.c
@@ -81,9 +81,6 @@ Bool amdgpu_glamor_pre_init(ScrnInfoPtr scrn)
 	pointer glamor_module;
 	CARD32 version;
 
-	if (!info->dri2.available)
-		return FALSE;
-
 	if (scrn->depth < 24) {
 		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
 			   "glamor requires depth >= 24, disabling.\n");
diff --git a/src/amdgpu_kms.c b/src/amdgpu_kms.c
index 69d61943d..784f7388a 100644
--- a/src/amdgpu_kms.c
+++ b/src/amdgpu_kms.c
@@ -1191,19 +1191,22 @@ static Bool AMDGPUPreInitAccel_KMS(ScrnInfoPtr pScrn)
 
 		if (info->dri2.available)
 			info->gbm = gbm_create_device(pAMDGPUEnt->fd);
-		if (info->gbm == NULL)
-			info->dri2.available = FALSE;
 
-		if (use_glamor &&
-			amdgpu_glamor_pre_init(pScrn))
-			return TRUE;
-
-		if (info->dri2.available)
-			return TRUE;
+		if (info->gbm) {
+			if (!use_glamor ||
+			    amdgpu_glamor_pre_init(pScrn))
+				return TRUE;
+		} else {
+			xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+				   "gbm_create_device returned NULL, using "
+				   "ShadowFB\n");
+		}
+	} else {
+		xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
+			   "GPU acceleration disabled, using ShadowFB\n");
 	}
 
-	xf86DrvMsg(pScrn->scrnIndex, X_INFO,
-		   "GPU accel disabled or not working, using shadowfb for KMS\n");
+	info->dri2.available = FALSE;
 	info->shadow_fb = TRUE;
 	if (!xf86LoadSubModule(pScrn, "shadow"))
 		info->shadow_fb = FALSE;
-- 
2.11.0