From: David Matlack <dmatlack@google.com>
Date: Fri, 22 Aug 2025 21:25:08 +0000 (+0000)
Subject: dmaengine: idxd: Allow registers.h to be included from tools/
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=003e6faf2c8ff1670c35622f11ff6211be563a9e;p=users%2Fhch%2Fmisc.git

dmaengine: idxd: Allow registers.h to be included from tools/

Allow drivers/dma/idxd/registers.h to be included from userspace in
tools/ by adjusting the include path to uapi/linux/idxd.h if __KERNEL__
is not defined.

A subsequent commit will use registers.h to implement a userspace driver
for Intel DSA devices in tools/testing/selftests/vfio.

Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: David Matlack <dmatlack@google.com>
Link: https://lore.kernel.org/r/20250822212518.4156428-22-dmatlack@google.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---

diff --git a/drivers/dma/idxd/registers.h b/drivers/dma/idxd/registers.h
index 9c1c546fe443..02bab136385e 100644
--- a/drivers/dma/idxd/registers.h
+++ b/drivers/dma/idxd/registers.h
@@ -3,7 +3,11 @@
 #ifndef _IDXD_REGISTERS_H_
 #define _IDXD_REGISTERS_H_
 
+#ifdef __KERNEL__
 #include <uapi/linux/idxd.h>
+#else
+#include <linux/idxd.h>
+#endif
 
 /* PCI Config */
 #define PCI_DEVICE_ID_INTEL_DSA_GNRD	0x11fb