From: David S. Miller <davem@davemloft.net>
Date: Sun, 20 May 2012 04:15:37 +0000 (-0700)
Subject: sparc32: Remove completely unused code from asm/cache.h
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=d0be6b16c34e87cccadc55ac21bb88d46db75493;p=~shefty%2Frdma-dev.git

sparc32: Remove completely unused code from asm/cache.h

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
index 69358b590c9..5bb6991b485 100644
--- a/arch/sparc/include/asm/cache.h
+++ b/arch/sparc/include/asm/cache.h
@@ -22,118 +22,4 @@
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
-#ifdef CONFIG_SPARC32
-#include <asm/asi.h>
-
-/* Direct access to the instruction cache is provided through and
- * alternate address space.  The IDC bit must be off in the ICCR on
- * HyperSparcs for these accesses to work.  The code below does not do
- * any checking, the caller must do so.  These routines are for
- * diagnostics only, but could end up being useful.  Use with care.
- * Also, you are asking for trouble if you execute these in one of the
- * three instructions following a %asr/%psr access or modification.
- */
-
-/* First, cache-tag access. */
-static inline unsigned int get_icache_tag(int setnum, int tagnum)
-{
-	unsigned int vaddr, retval;
-
-	vaddr = ((setnum&1) << 12) | ((tagnum&0x7f) << 5);
-	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
-			     "=r" (retval) :
-			     "r" (vaddr), "i" (ASI_M_TXTC_TAG));
-	return retval;
-}
-
-static inline void put_icache_tag(int setnum, int tagnum, unsigned int entry)
-{
-	unsigned int vaddr;
-
-	vaddr = ((setnum&1) << 12) | ((tagnum&0x7f) << 5);
-	__asm__ __volatile__("sta %0, [%1] %2\n\t" : :
-			     "r" (entry), "r" (vaddr), "i" (ASI_M_TXTC_TAG) :
-			     "memory");
-}
-
-/* Second cache-data access.  The data is returned two-32bit quantities
- * at a time.
- */
-static inline void get_icache_data(int setnum, int tagnum, int subblock,
-				       unsigned int *data)
-{
-	unsigned int value1, value2, vaddr;
-
-	vaddr = ((setnum&0x1) << 12) | ((tagnum&0x7f) << 5) |
-		((subblock&0x3) << 3);
-	__asm__ __volatile__("ldda [%2] %3, %%g2\n\t"
-			     "or %%g0, %%g2, %0\n\t"
-			     "or %%g0, %%g3, %1\n\t" :
-			     "=r" (value1), "=r" (value2) :
-			     "r" (vaddr), "i" (ASI_M_TXTC_DATA) :
-			     "g2", "g3");
-	data[0] = value1; data[1] = value2;
-}
-
-static inline void put_icache_data(int setnum, int tagnum, int subblock,
-				       unsigned int *data)
-{
-	unsigned int value1, value2, vaddr;
-
-	vaddr = ((setnum&0x1) << 12) | ((tagnum&0x7f) << 5) |
-		((subblock&0x3) << 3);
-	value1 = data[0]; value2 = data[1];
-	__asm__ __volatile__("or %%g0, %0, %%g2\n\t"
-			     "or %%g0, %1, %%g3\n\t"
-			     "stda %%g2, [%2] %3\n\t" : :
-			     "r" (value1), "r" (value2), 
-			     "r" (vaddr), "i" (ASI_M_TXTC_DATA) :
-			     "g2", "g3", "memory" /* no joke */);
-}
-
-/* Different types of flushes with the ICACHE.  Some of the flushes
- * affect both the ICACHE and the external cache.  Others only clear
- * the ICACHE entries on the cpu itself.  V8's (most) allow
- * granularity of flushes on the packet (element in line), whole line,
- * and entire cache (ie. all lines) level.  The ICACHE only flushes are
- * ROSS HyperSparc specific and are in ross.h
- */
-
-/* Flushes which clear out both the on-chip and external caches */
-static inline void flush_ei_page(unsigned int addr)
-{
-	__asm__ __volatile__("sta %%g0, [%0] %1\n\t" : :
-			     "r" (addr), "i" (ASI_M_FLUSH_PAGE) :
-			     "memory");
-}
-
-static inline void flush_ei_seg(unsigned int addr)
-{
-	__asm__ __volatile__("sta %%g0, [%0] %1\n\t" : :
-			     "r" (addr), "i" (ASI_M_FLUSH_SEG) :
-			     "memory");
-}
-
-static inline void flush_ei_region(unsigned int addr)
-{
-	__asm__ __volatile__("sta %%g0, [%0] %1\n\t" : :
-			     "r" (addr), "i" (ASI_M_FLUSH_REGION) :
-			     "memory");
-}
-
-static inline void flush_ei_ctx(unsigned int addr)
-{
-	__asm__ __volatile__("sta %%g0, [%0] %1\n\t" : :
-			     "r" (addr), "i" (ASI_M_FLUSH_CTX) :
-			     "memory");
-}
-
-static inline void flush_ei_user(unsigned int addr)
-{
-	__asm__ __volatile__("sta %%g0, [%0] %1\n\t" : :
-			     "r" (addr), "i" (ASI_M_FLUSH_USER) :
-			     "memory");
-}
-#endif /* CONFIG_SPARC32 */
-
 #endif /* !(_SPARC_CACHE_H) */