On 21/11/2019 14:11, Chris Wilson wrote:
Quoting Lionel Landwerlin (2019-11-21 12:04:42)
On 13/11/2019 14:52, Chris Wilson wrote:
Several tests depend upon the implicit engine->mmio_base but have no
means of determining the physical layout. Since the kernel has started
providing this information, start putting it to use.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
lib/i915/gem_engine_topology.c | 84 ++++++++++++++++++++++++++++++++++
lib/i915/gem_engine_topology.h | 5 ++
tests/i915/gem_ctx_shared.c | 38 +++++----------
tests/i915/gem_exec_latency.c | 17 ++++---
4 files changed, 111 insertions(+), 33 deletions(-)
diff --git a/lib/i915/gem_engine_topology.c b/lib/i915/gem_engine_topology.c
index 790d455ff..bd200a4b9 100644
--- a/lib/i915/gem_engine_topology.c
+++ b/lib/i915/gem_engine_topology.c
@@ -21,7 +21,12 @@
* IN THE SOFTWARE.
*/
+#include <fcntl.h>
+#include <unistd.h>
+
#include "drmtest.h"
+#include "igt_sysfs.h"
+#include "intel_chipset.h"
#include "ioctl_wrappers.h"
#include "i915/gem_engine_topology.h"
@@ -337,3 +342,82 @@ bool gem_engine_is_equal(const struct intel_execution_engine2 *e1,
{
return e1->class == e2->class && e1->instance == e2->instance;
}
+
+static int descend(int dir, const char *path)
+{
+ int fd;
+
+ fd = openat(dir, path, O_RDONLY);
+ close(dir);
+
+ return fd;
+}
+
Not sure I understand what file the function below is supposed to parse.
Is that /sys/kernel/debug/dri/0/i915_engine_info?
/sys/class/drm/card0/engine/*/mmio_base
-Chris
But that's not in drm-tip right?
-Lionel
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