[Intel-gfx] [PATCH] drm/i915/gem: fix non-SMP build failure

Arnd Bergmann arnd at kernel.org
Mon Jan 25 12:25:34 UTC 2021

From: Arnd Bergmann <arnd at arndb.de>

The x86-specific wbinvd_on_all_cpus() function is exported
through asm/smp.h, causing a build failure in the i915 driver
when SMP is disabled:

drivers/gpu/drm/i915/i915_gem.c:1182:2: error: implicit declaration of function 'wbinvd_on_all_cpus' [-Werror,-Wimplicit-function-declaration]

Include that header file explicitly.

Fixes: 30d2bfd09383 ("drm/i915/gem: Almagamate clflushes on freeze")
Signed-off-by: Arnd Bergmann <arnd at arndb.de>
 drivers/gpu/drm/i915/i915_gem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 9b04dff5eb32..2a1643514577 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -36,6 +36,7 @@
 #include <linux/pci.h>
 #include <linux/dma-buf.h>
 #include <linux/mman.h>
+#include <asm/smp.h>
 #include "display/intel_display.h"
 #include "display/intel_frontbuffer.h"

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