meta-hailo: Fix the CMA issue when PVU was integrated

PVU-based DMA isolation brings SWIO TLB to the table and the maximum allowable number of contiguous slabs to map is 128 by default, but meta-hailo requires more 128. Hence increase it to 256 when meta-hailo is included. Signed-off-by: Li Hua Qian <[email protected]>
siemens · Dec 3, 2024 · deb271e · deb271e
1 parent 62f1699
commit deb271e
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diff --git a/kas/opt/meta-hailo.yml b/kas/opt/meta-hailo.yml
@@ -11,6 +11,10 @@
 header:
   version: 14
 
+local_conf_header:
+  hailo_override: |
+    OVERRIDES .= ":meta-hailo"
+
 repos:
   meta-hailo:
     path: ${TOPDIR}/../meta-hailo
diff --git a/recipes-kernel/linux/linux-iot2050-6.1.inc b/recipes-kernel/linux/linux-iot2050-6.1.inc
@@ -26,6 +26,8 @@ def get_extra_configs(d):
 
     if re.search("pvu-dma", overrides):
         append_config.append('CONFIG_TI_PVU=y')
+        if re.search("meta-hailo", overrides):
+            append_config.append('CONFIG_SWIOTLB_SEGSIZE=256')
 
     if append_config:
         append_config_file = os.path.join(d.getVar('T'), 'iot2050_append_config.cfg')