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authorTomas Winkler <tomas.winkler@intel.com>2018-07-31 09:35:36 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-08-02 11:18:30 +0300
commitc2bd9fc13d0ca1926bfd8b8e6d88f93d84a51f2a (patch)
tree929555810f197c6c7b94d018ad28e84500579d05 /drivers/misc/mei/hw.h
parent9d89ddfc624649e200aeec57912635dbe259d07b (diff)
downloadlinux-c2bd9fc13d0ca1926bfd8b8e6d88f93d84a51f2a.tar.xz
mei: restrict dma ring support to hbm version 2.1
Only a firmware with version 2.1 and above supports dma ring feature. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/hw.h')
-rw-r--r--drivers/misc/mei/hw.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index 5fb8844a6db5..65655925791a 100644
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -80,6 +80,12 @@
#define HBM_MINOR_VERSION_OS 0
#define HBM_MAJOR_VERSION_OS 2
+/*
+ * MEI version with dma ring support
+ */
+#define HBM_MINOR_VERSION_DR 1
+#define HBM_MAJOR_VERSION_DR 2
+
/* Host bus message command opcode */
#define MEI_HBM_CMD_OP_MSK 0x7f
/* Host bus message command RESPONSE */