tile: improve big-endian support

First, fix a bug in asm/unaligned.h; we need to just use the asm-generic
unaligned.h so we properly choose endian-correct flavors.

Second, keep the hv/hypervisor.h ABI fully "native" in the sense that
we don't have __BIG_ENDIAN__ ifdefs there.  Instead, we use macros in
the head_NN.S assembly code to properly extract two 32-bit structure
members from a 64-bit register holding the structure.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

1 files changed, 0 insertions, 16 deletions

diff --git a/arch/tile/include/hv/hypervisor.h b/arch/tile/include/hv/hypervisor.h
index f882ebcf43a9..0971ebbde1b7 100644
--- a/arch/tile/include/hv/hypervisor.h
+++ b/arch/tile/include/hv/hypervisor.h
@@ -564,16 +564,11 @@ int hv_confstr(HV_ConfstrQuery query, HV_VirtAddr buf, int len);
 /** Tile coordinate */
 typedef struct
 {
-#ifndef __BIG_ENDIAN__
   /** X coordinate, relative to supervisor's top-left coordinate */
   int x;
 
   /** Y coordinate, relative to supervisor's top-left coordinate */
   int y;
-#else
-  int y;
-  int x;
-#endif
 } HV_Coord;
 
 
@@ -1119,13 +1114,8 @@ HV_VirtAddrRange hv_inquire_virtual(int idx);
 /** A range of ASID values. */
 typedef struct
 {
-#ifndef __BIG_ENDIAN__
   HV_ASID start;        /**< First ASID in the range. */
   unsigned int size;    /**< Number of ASIDs. Zero for an invalid range. */
-#else
-  unsigned int size;    /**< Number of ASIDs. Zero for an invalid range. */
-  HV_ASID start;        /**< First ASID in the range. */
-#endif
 } HV_ASIDRange;
 
 /** Returns information about a range of ASIDs.
@@ -1449,7 +1439,6 @@ typedef enum
 /** Message recipient. */
 typedef struct
 {
-#ifndef __BIG_ENDIAN__
   /** X coordinate, relative to supervisor's top-left coordinate */
   unsigned int x:11;
 
@@ -1458,11 +1447,6 @@ typedef struct
 
   /** Status of this recipient */
   HV_Recip_State state:10;
-#else //__BIG_ENDIAN__
-  HV_Recip_State state:10;
-  unsigned int y:11;
-  unsigned int x:11;
-#endif
 } HV_Recipient;
 
 /** Send a message to a set of recipients.