intel/tools: new intel_sanitize_gpu tool

Adds a new debug tool to pad each GEM BO allocated with (weak)
pseudo-random noise values which are then checked after each
batchbuffer dispatch to the kernel. This can be quite valuable to
find diffucult to track down heisenberg style bugs.

[[email protected]: split to separate tool]

v2: (by Scott D Phillips)
    - track gem handles per fd (Kevin)
    - remove handles on GEM_CLOSE (Kevin)
    - ignore prime handles
    - meson & shell script

v3: (by Scott D Phillips)
    - don't track prime bos at all (Kevin)
    - protect the hash table with a mutex (Kevin)
    - hook fds by drm_version.name, not path (Chris Wilson)

Reviewed-by: Scott D Phillips <[email protected]>
Reviewed-by: Kevin Rogovin <[email protected]>
Reviewed-by: Dylan Baker <[email protected]>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/intel/tools/meson.build b/src/intel/tools/meson.build
index 84b44841f75..e19de5af882 100644
--- a/src/intel/tools/meson.build
+++ b/src/intel/tools/meson.build
@@ -41,3 +41,28 @@ aubinator_error_decode = executable(
   build_by_default : with_tools.contains('intel'),
   install : with_tools.contains('intel'),
 )
+
+if with_tools.contains('intel')
+  sanitize_data = configuration_data()
+  sanitize_data.set(
+    'install_libexecdir',
+    join_paths(get_option('prefix'), get_option('libexecdir'))
+  )
+  configure_file(
+    input: 'intel_sanitize_gpu.in',
+    output: '@BASENAME@',
+    install_dir: get_option('bindir'),
+    configuration: sanitize_data,
+  )
+
+  libintel_sanitize_gpu = shared_library(
+    'intel_sanitize_gpu',
+    files('intel_sanitize_gpu.c'),
+    dependencies : [dep_dl, dep_thread],
+    include_directories : [inc_common, inc_intel, inc_drm_uapi],
+    link_with : [libintel_common, libmesa_util],
+    c_args : [c_vis_args, no_override_init_args],
+    install_dir: get_option('libexecdir'),
+    install: true,
+  )
+endif