ARM: 6466/1: implement flush_icache_all for the rest of the CPUs

Commit 81d11955bf0 ("ARM: 6405/1: Handle __flush_icache_all for
CONFIG_SMP_ON_UP") added a new function to struct cpu_cache_fns:
flush_icache_all(). It also implemented this for v6 and v7 but not
for v5 and backwards. Without the function pointer in place, we
will be calling wrong cache functions.

For example with ep93xx we get following:

    Unable to handle kernel paging request at virtual address ee070f38
    pgd = c0004000
    [ee070f38] *pgd=00000000
    Internal error: Oops: 80000005 [#1] PREEMPT
    last sysfs file:
    Modules linked in:
    CPU: 0    Not tainted  (2.6.36+ #1)
    PC is at 0xee070f38
    LR is at __dma_alloc+0x11c/0x2d0
    pc : [<ee070f38>]    lr : [<c0032c8c>]    psr: 60000013
    sp : c581bde0  ip : 00000000  fp : c0472000
    r10: c0472000  r9 : 000000d0  r8 : 00020000
    r7 : 0001ffff  r6 : 00000000  r5 : c0472400  r4 : c5980000
    r3 : c03ab7e0  r2 : 00000000  r1 : c59a0000  r0 : c5980000
    Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
    Control: c000717f  Table: c0004000  DAC: 00000017
    Process swapper (pid: 1, stack limit = 0xc581a270)
    [<c0032c8c>] (__dma_alloc+0x11c/0x2d0)
    [<c0032e5c>] (dma_alloc_writecombine+0x1c/0x24)
    [<c0204148>] (ep93xx_pcm_preallocate_dma_buffer+0x44/0x60)
    [<c02041c0>] (ep93xx_pcm_new+0x5c/0x88)
    [<c01ff188>] (snd_soc_instantiate_cards+0x8a8/0xbc0)
    [<c01ff59c>] (soc_probe+0xfc/0x134)
    [<c01adafc>] (platform_drv_probe+0x18/0x1c)
    [<c01acca4>] (driver_probe_device+0xb0/0x16c)
    [<c01ac284>] (bus_for_each_drv+0x48/0x84)
    [<c01ace90>] (device_attach+0x50/0x68)
    [<c01ac0f8>] (bus_probe_device+0x24/0x44)
    [<c01aad7c>] (device_add+0x2fc/0x44c)
    [<c01adfa8>] (platform_device_add+0x104/0x15c)
    [<c0015eb8>] (simone_init+0x60/0x94)
    [<c0021410>] (do_one_initcall+0xd0/0x1a4)

__dma_alloc() calls (inlined) __dma_alloc_buffer() which ends up
calling dmac_flush_range(). Now since the entries in the
arm920_cache_fns are shifted by one, we jump into address 0xee070f38
which is actually next instruction after the arm920_cache_fns
structure.

So implement flush_icache_all() for the rest of the supported CPUs
using a generic 'invalidate I cache' instruction.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S
index 7148e53..1fa6f71 100644 (file)
--- a/arch/arm/mm/cache-fa.S
+++ b/arch/arm/mm/cache-fa.S
@@ -38,6 +38,17 @@
 #define CACHE_DLIMIT   (CACHE_DSIZE * 2)
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(fa_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(fa_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Clean and invalidate all cache entries in a particular address
@@ -233,6 +244,7 @@ ENDPROC(fa_dma_unmap_area)
 
        .type   fa_cache_fns, #object
 ENTRY(fa_cache_fns)
+       .long   fa_flush_icache_all
        .long   fa_flush_kern_cache_all
        .long   fa_flush_user_cache_all
        .long   fa_flush_user_cache_range

diff --git a/arch/arm/mm/cache-v3.S b/arch/arm/mm/cache-v3.S
index c2ff3c5..2e2bc40 100644 (file)
--- a/arch/arm/mm/cache-v3.S
+++ b/arch/arm/mm/cache-v3.S
@@ -13,6 +13,15 @@
 #include "proc-macros.S"
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(v3_flush_icache_all)
+       mov     pc, lr
+ENDPROC(v3_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Invalidate all cache entries in a particular address
@@ -122,6 +131,7 @@ ENDPROC(v3_dma_map_area)
 
        .type   v3_cache_fns, #object
 ENTRY(v3_cache_fns)
+       .long   v3_flush_icache_all
        .long   v3_flush_kern_cache_all
        .long   v3_flush_user_cache_all
        .long   v3_flush_user_cache_range

diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S
index 4810f7e..a8fefb5 100644 (file)
--- a/arch/arm/mm/cache-v4.S
+++ b/arch/arm/mm/cache-v4.S
@@ -13,6 +13,15 @@
 #include "proc-macros.S"
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(v4_flush_icache_all)
+       mov     pc, lr
+ENDPROC(v4_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Invalidate all cache entries in a particular address
@@ -134,6 +143,7 @@ ENDPROC(v4_dma_map_area)
 
        .type   v4_cache_fns, #object
 ENTRY(v4_cache_fns)
+       .long   v4_flush_icache_all
        .long   v4_flush_kern_cache_all
        .long   v4_flush_user_cache_all
        .long   v4_flush_user_cache_range

diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S
index df8368a..d3644db 100644 (file)
--- a/arch/arm/mm/cache-v4wb.S
+++ b/arch/arm/mm/cache-v4wb.S
@@ -51,6 +51,17 @@ flush_base:
        .text
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(v4wb_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(v4wb_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Clean and invalidate all cache entries in a particular address
@@ -244,6 +255,7 @@ ENDPROC(v4wb_dma_unmap_area)
 
        .type   v4wb_cache_fns, #object
 ENTRY(v4wb_cache_fns)
+       .long   v4wb_flush_icache_all
        .long   v4wb_flush_kern_cache_all
        .long   v4wb_flush_user_cache_all
        .long   v4wb_flush_user_cache_range

diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S
index 45c7031..49c2b66 100644 (file)
--- a/arch/arm/mm/cache-v4wt.S
+++ b/arch/arm/mm/cache-v4wt.S
@@ -41,6 +41,17 @@
 #define CACHE_DLIMIT   16384
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(v4wt_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(v4wt_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Invalidate all cache entries in a particular address
@@ -188,6 +199,7 @@ ENDPROC(v4wt_dma_map_area)
 
        .type   v4wt_cache_fns, #object
 ENTRY(v4wt_cache_fns)
+       .long   v4wt_flush_icache_all
        .long   v4wt_flush_kern_cache_all
        .long   v4wt_flush_user_cache_all
        .long   v4wt_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index a6f5f84..bcf748d 100644 (file)
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -119,6 +119,20 @@ ENTRY(cpu_arm1020_do_idle)
 /* ================================= CACHE ================================ */
 
        .align  5
+
+/*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm1020_flush_icache_all)
+#ifndef CONFIG_CPU_ICACHE_DISABLE
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+#endif
+       mov     pc, lr
+ENDPROC(arm1020_flush_icache_all)
+
 /*
  *     flush_user_cache_all()
  *
@@ -351,6 +365,7 @@ ENTRY(arm1020_dma_unmap_area)
 ENDPROC(arm1020_dma_unmap_area)
 
 ENTRY(arm1020_cache_fns)
+       .long   arm1020_flush_icache_all
        .long   arm1020_flush_kern_cache_all
        .long   arm1020_flush_user_cache_all
        .long   arm1020_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index afc06b9..ab7ec26 100644 (file)
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -119,6 +119,20 @@ ENTRY(cpu_arm1020e_do_idle)
 /* ================================= CACHE ================================ */
 
        .align  5
+
+/*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm1020e_flush_icache_all)
+#ifndef CONFIG_CPU_ICACHE_DISABLE
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+#endif
+       mov     pc, lr
+ENDPROC(arm1020e_flush_icache_all)
+
 /*
  *     flush_user_cache_all()
  *
@@ -337,6 +351,7 @@ ENTRY(arm1020e_dma_unmap_area)
 ENDPROC(arm1020e_dma_unmap_area)
 
 ENTRY(arm1020e_cache_fns)
+       .long   arm1020e_flush_icache_all
        .long   arm1020e_flush_kern_cache_all
        .long   arm1020e_flush_user_cache_all
        .long   arm1020e_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S
index 8915e0b..831c5e5 100644 (file)
--- a/arch/arm/mm/proc-arm1022.S
+++ b/arch/arm/mm/proc-arm1022.S
@@ -108,6 +108,20 @@ ENTRY(cpu_arm1022_do_idle)
 /* ================================= CACHE ================================ */
 
        .align  5
+
+/*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm1022_flush_icache_all)
+#ifndef CONFIG_CPU_ICACHE_DISABLE
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+#endif
+       mov     pc, lr
+ENDPROC(arm1022_flush_icache_all)
+
 /*
  *     flush_user_cache_all()
  *
@@ -326,6 +340,7 @@ ENTRY(arm1022_dma_unmap_area)
 ENDPROC(arm1022_dma_unmap_area)
 
 ENTRY(arm1022_cache_fns)
+       .long   arm1022_flush_icache_all
        .long   arm1022_flush_kern_cache_all
        .long   arm1022_flush_user_cache_all
        .long   arm1022_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
index ff446c5..e3f7e9a 100644 (file)
--- a/arch/arm/mm/proc-arm1026.S
+++ b/arch/arm/mm/proc-arm1026.S
@@ -108,6 +108,20 @@ ENTRY(cpu_arm1026_do_idle)
 /* ================================= CACHE ================================ */
 
        .align  5
+
+/*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm1026_flush_icache_all)
+#ifndef CONFIG_CPU_ICACHE_DISABLE
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+#endif
+       mov     pc, lr
+ENDPROC(arm1026_flush_icache_all)
+
 /*
  *     flush_user_cache_all()
  *
@@ -320,6 +334,7 @@ ENTRY(arm1026_dma_unmap_area)
 ENDPROC(arm1026_dma_unmap_area)
 
 ENTRY(arm1026_cache_fns)
+       .long   arm1026_flush_icache_all
        .long   arm1026_flush_kern_cache_all
        .long   arm1026_flush_user_cache_all
        .long   arm1026_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index fecf570..6109f27 100644 (file)
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -110,6 +110,17 @@ ENTRY(cpu_arm920_do_idle)
 #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm920_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(arm920_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Invalidate all cache entries in a particular address
@@ -305,6 +316,7 @@ ENTRY(arm920_dma_unmap_area)
 ENDPROC(arm920_dma_unmap_area)
 
 ENTRY(arm920_cache_fns)
+       .long   arm920_flush_icache_all
        .long   arm920_flush_kern_cache_all
        .long   arm920_flush_user_cache_all
        .long   arm920_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
index e3cbf87..bb2f0f4 100644 (file)
--- a/arch/arm/mm/proc-arm922.S
+++ b/arch/arm/mm/proc-arm922.S
@@ -112,6 +112,17 @@ ENTRY(cpu_arm922_do_idle)
 #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm922_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(arm922_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Clean and invalidate all cache entries in a particular
@@ -307,6 +318,7 @@ ENTRY(arm922_dma_unmap_area)
 ENDPROC(arm922_dma_unmap_area)
 
 ENTRY(arm922_cache_fns)
+       .long   arm922_flush_icache_all
        .long   arm922_flush_kern_cache_all
        .long   arm922_flush_user_cache_all
        .long   arm922_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
index 572424c..c13e01a 100644 (file)
--- a/arch/arm/mm/proc-arm925.S
+++ b/arch/arm/mm/proc-arm925.S
@@ -145,6 +145,17 @@ ENTRY(cpu_arm925_do_idle)
        mov     pc, lr
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm925_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(arm925_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Clean and invalidate all cache entries in a particular
@@ -362,6 +373,7 @@ ENTRY(arm925_dma_unmap_area)
 ENDPROC(arm925_dma_unmap_area)
 
 ENTRY(arm925_cache_fns)
+       .long   arm925_flush_icache_all
        .long   arm925_flush_kern_cache_all
        .long   arm925_flush_user_cache_all
        .long   arm925_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
index 63d168b..42eb431 100644 (file)
--- a/arch/arm/mm/proc-arm926.S
+++ b/arch/arm/mm/proc-arm926.S
@@ -111,6 +111,17 @@ ENTRY(cpu_arm926_do_idle)
        mov     pc, lr
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm926_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(arm926_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Clean and invalidate all cache entries in a particular
@@ -325,6 +336,7 @@ ENTRY(arm926_dma_unmap_area)
 ENDPROC(arm926_dma_unmap_area)
 
 ENTRY(arm926_cache_fns)
+       .long   arm926_flush_icache_all
        .long   arm926_flush_kern_cache_all
        .long   arm926_flush_user_cache_all
        .long   arm926_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
index f6a6282..7b11cdb 100644 (file)
--- a/arch/arm/mm/proc-arm940.S
+++ b/arch/arm/mm/proc-arm940.S
@@ -68,6 +68,17 @@ ENTRY(cpu_arm940_do_idle)
        mov     pc, lr
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm940_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(arm940_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  */
 ENTRY(arm940_flush_user_cache_all)
@@ -254,6 +265,7 @@ ENTRY(arm940_dma_unmap_area)
 ENDPROC(arm940_dma_unmap_area)
 
 ENTRY(arm940_cache_fns)
+       .long   arm940_flush_icache_all
        .long   arm940_flush_kern_cache_all
        .long   arm940_flush_user_cache_all
        .long   arm940_flush_user_cache_range

diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S
index ea2e7f2..1a5bbf0 100644 (file)
--- a/arch/arm/mm/proc-arm946.S
+++ b/arch/arm/mm/proc-arm946.S
@@ -75,6 +75,17 @@ ENTRY(cpu_arm946_do_idle)
        mov     pc, lr
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(arm946_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(arm946_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  */
 ENTRY(arm946_flush_user_cache_all)
@@ -296,6 +307,7 @@ ENTRY(arm946_dma_unmap_area)
 ENDPROC(arm946_dma_unmap_area)
 
 ENTRY(arm946_cache_fns)
+       .long   arm946_flush_icache_all
        .long   arm946_flush_kern_cache_all
        .long   arm946_flush_user_cache_all
        .long   arm946_flush_user_cache_range

diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index 578da69..b4597ed 100644 (file)
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -124,6 +124,17 @@ ENTRY(cpu_feroceon_do_idle)
        mov     pc, lr
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(feroceon_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(feroceon_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Clean and invalidate all cache entries in a particular
@@ -401,6 +412,7 @@ ENTRY(feroceon_dma_unmap_area)
 ENDPROC(feroceon_dma_unmap_area)
 
 ENTRY(feroceon_cache_fns)
+       .long   feroceon_flush_icache_all
        .long   feroceon_flush_kern_cache_all
        .long   feroceon_flush_user_cache_all
        .long   feroceon_flush_user_cache_range
@@ -412,6 +424,7 @@ ENTRY(feroceon_cache_fns)
        .long   feroceon_dma_flush_range
 
 ENTRY(feroceon_range_cache_fns)
+       .long   feroceon_flush_icache_all
        .long   feroceon_flush_kern_cache_all
        .long   feroceon_flush_user_cache_all
        .long   feroceon_flush_user_cache_range

diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index cad07e4..ec26355 100644 (file)
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -141,6 +141,17 @@ ENTRY(cpu_xsc3_do_idle)
 /* ================================= CACHE ================================ */
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(xsc3_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(xsc3_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Invalidate all cache entries in a particular address
@@ -325,6 +336,7 @@ ENTRY(xsc3_dma_unmap_area)
 ENDPROC(xsc3_dma_unmap_area)
 
 ENTRY(xsc3_cache_fns)
+       .long   xsc3_flush_icache_all
        .long   xsc3_flush_kern_cache_all
        .long   xsc3_flush_user_cache_all
        .long   xsc3_flush_user_cache_range

diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index cb245ed..523408c 100644 (file)
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -181,6 +181,17 @@ ENTRY(cpu_xscale_do_idle)
 /* ================================= CACHE ================================ */
 
 /*
+ *     flush_icache_all()
+ *
+ *     Unconditionally clean and invalidate the entire icache.
+ */
+ENTRY(xscale_flush_icache_all)
+       mov     r0, #0
+       mcr     p15, 0, r0, c7, c5, 0           @ invalidate I cache
+       mov     pc, lr
+ENDPROC(xscale_flush_icache_all)
+
+/*
  *     flush_user_cache_all()
  *
  *     Invalidate all cache entries in a particular address
@@ -397,6 +408,7 @@ ENTRY(xscale_dma_unmap_area)
 ENDPROC(xscale_dma_unmap_area)
 
 ENTRY(xscale_cache_fns)
+       .long   xscale_flush_icache_all
        .long   xscale_flush_kern_cache_all
        .long   xscale_flush_user_cache_all
        .long   xscale_flush_user_cache_range