From: Christian König <christian.koenig@amd.com>
Date: Sun, 14 Apr 2013 10:45:43 +0000 (+0200)
Subject: drm/radeon: cleanup UVD address checks
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a92c7d554fbfa5ec1008e4c856a2206c2cce45a4;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

drm/radeon: cleanup UVD address checks

Message and feedback buffers must be at start of
VRAM, not at start of address space.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index 30a94609672a..2fb4d6cf26b6 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -415,24 +415,26 @@ static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
 		return -EINVAL;
 	}
 
-	if (cmd == 0) {
-		if (end & 0xFFFFFFFFF0000000) {
-			DRM_ERROR("msg buffer %LX-%LX out of 256MB segment!\n",
-				  start, end);
-			return -EINVAL;
-		}
-
-		r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
-		if (r)
-			return r;
+	if ((start >> 28) != (end >> 28)) {
+		DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
+			  start, end);
+		return -EINVAL;
 	}
 
-	if ((start & 0xFFFFFFFFF0000000) != (end & 0xFFFFFFFFF0000000)) {
-		DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
+	/* TODO: is this still necessary on NI+ ? */
+	if ((cmd == 0 || cmd == 0x3) &&
+	    (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
+		DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 			  start, end);
 		return -EINVAL;
 	}
 
+	if (cmd == 0) {
+		r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
+		if (r)
+			return r;
+	}
+
 	return 0;
 }