panfrost: Implement pantrace (command stream dump)

Historically, Panfrost debugging entailed the use of the LD_PRELOADable
`panwrap` tool. This setup is a tad fragile; Panfrost can be traced
directly without the intermediate layer. pantrace implements the
quivalent functionality of panwrap into Panfrost proper, allowing dumps
to work regardless of the kernel layer in use.

Signed-off-by: Alyssa Rosenzweig <[email protected]>

1 files changed, 33 insertions, 0 deletions

diff --git a/src/gallium/drivers/panfrost/pan_trace.h b/src/gallium/drivers/panfrost/pan_trace.h
new file mode 100644
index 00000000000..9b0b79aa23e
--- /dev/null
+++ b/src/gallium/drivers/panfrost/pan_trace.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2019 Alyssa Rosenzweig
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef __PAN_TRACE_H__
+#define __PAN_TRACE_H__
+
+void pantrace_initialize(const char *base);
+void pantrace_submit_job(mali_ptr jc, unsigned core_req, unsigned is_bifrost);
+void pantrace_mmap(mali_ptr gpu, void *cpu, size_t sz, char *label);
+void pantrace_dump_memory(void);
+
+#endif