xf86-video-intel: src/sna/kgem.c

[Chris Wilson]

 src/sna/kgem.c |   28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

New commits:
commit 3dae8b97151f1d08942ec690dac5a5008901d7d0
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Nov 29 14:46:54 2013 +0000

    sna: Dump GTT info if we fail to execute a batch due to ENOSPC
    
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

diff --git a/src/sna/kgem.c b/src/sna/kgem.c
index f68f5f4..35b76d9 100644
--- a/src/sna/kgem.c
+++ b/src/sna/kgem.c
@@ -2872,6 +2872,31 @@ out_16384:
 	return kgem_create_linear(kgem, size, CREATE_NO_THROTTLE);
 }
 
+#if !NDEBUG
+static void dump_gtt_info(void)
+{
+	int i;
+
+	for (i = 0; i < DRM_MAX_MINOR; i++) {
+		char path[80];
+		FILE *file;
+
+		sprintf(path, "/sys/kernel/debug/dri%d/i915_gem_gtt", i);
+		file = fopen(path, "r");
+		if (file) {
+			size_t len = 0;
+			char *line = NULL;
+
+			while (getline(&line, &len, file) != -1)
+				ErrorF("%s", line);
+			free(line);
+			fclose(file);
+			return;
+		}
+	}
+}
+#endif
+
 void _kgem_submit(struct kgem *kgem)
 {
 	struct kgem_request *rq;
@@ -3024,6 +3049,9 @@ void _kgem_submit(struct kgem *kgem)
 						       (long long)aperture.aper_available_size);
 				}
 
+				if (ret == ENOSPC)
+					dump_gtt_info();
+
 				if (DEBUG_SYNC) {
 					int fd = open("/tmp/batchbuffer", O_WRONLY | O_CREAT | O_APPEND, 0666);
 					if (fd != -1) {