linux-kernel - [PATCH 3/4] drm/vmwgfx: Update the backdoor call with support for new instructions

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Date:   Sun, 18 Aug 2019 16:33:15 +0200
From:   Thomas Hellström (VMware) 
        <thomas_os@...pmail.org>
To:     linux-kernel@...r.kernel.org, pv-drivers@...are.com
Cc:     Thomas Hellstrom <thellstrom@...are.com>,
        Doug Covelli <dcovelli@...are.com>
Subject: [PATCH 3/4] drm/vmwgfx: Update the backdoor call with support for new instructions

From: Thomas Hellstrom <thellstrom@...are.com>

Use the definition provided by include/asm/vmware.h

Signed-off-by: Thomas Hellstrom <thellstrom@...are.com>
Reviewed-by: Doug Covelli <dcovelli@...are.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_msg.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h
index 4907e50fb20a..7fc3ff63b1a8 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h
@@ -32,6 +32,7 @@
 #ifndef _VMWGFX_MSG_H
 #define _VMWGFX_MSG_H
 
+#include <asm/vmware.h>
 
 /**
  * Hypervisor-specific bi-directional communication channel.  Should never
@@ -57,7 +58,7 @@
 		 port_num, magic,		\
 		 eax, ebx, ecx, edx, si, di)	\
 ({						\
-	asm volatile ("inl %%dx, %%eax;" :	\
+	asm volatile (VMWARE_HYPERCALL :	\
 		"=a"(eax),			\
 		"=b"(ebx),			\
 		"=c"(ecx),			\
-- 
2.20.1