From: Arnd Bergmann <arnd@xxxxxxxx>
The x86 low-level cache management operations are declared in
asm/smp.h, so drivers that call into this code need to include
the header:
drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c:248:3: error: implicit declaration of function 'wbinvd_on_all_cpus' [-Werror,-Wimplicit-function-declaration]
wbinvd_on_all_cpus();
^
Fixes: a035154da45d ("drm/i915/dmabuf: add paranoid flush-on-acquire")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
index 1adcd8e02d29..853a989fcb9b 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
@@ -7,6 +7,7 @@
#include <linux/dma-buf.h>
#include <linux/highmem.h>
#include <linux/dma-resv.h>
+#include <asm/smp.h>
#include "i915_drv.h"
#include "i915_gem_object.h"
--
2.29.2
