deal with that there is 'L2CACHE: flush64 out of range:' message when…

… enable uas
starfive-tech · Apr 19, 2021 · e6aa768 · e6aa768 · marckleinebudde · Apr 27, 2021
1 parent b04e2f7
commit e6aa768
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/include/linux/usb.h b/include/linux/usb.h
@@ -1676,7 +1676,14 @@ static inline void usb_fill_bulk_urb(struct urb *urb,
 	urb->complete = complete_fn;
 	urb->context = context;
 #ifdef CONFIG_USB_CDNS3_HOST_FLUSH_DMA
-	cdns_virt_flush_dcache(transfer_buffer, buffer_length);
+	{
+		unsigned long start = dw_virt_to_phys(transfer_buffer);
+
+		if(!(start < CONFIG_SIFIVE_L2_FLUSH_START ||
+		     (start + buffer_length) > (CONFIG_SIFIVE_L2_FLUSH_START +
+				      CONFIG_SIFIVE_L2_FLUSH_SIZE)))
+			cdns_virt_flush_dcache(transfer_buffer, buffer_length);
+	}
 #endif
 }