Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM updates from Russell King:

 - Updates to AMBA bus subsystem to drop .owner struct device_driver
   initialisations, moving that to code instead.

 - Add LPAE privileged-access-never support

 - Add support for Clang CFI

 - clkdev: report over-sized device or connection strings

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: (36 commits)
  ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=y
  clkdev: report over-sized strings when creating clkdev entries
  ARM: 9393/1: mm: Use conditionals for CFI branches
  ARM: 9392/2: Support CLANG CFI
  ARM: 9391/2: hw_breakpoint: Handle CFI breakpoints
  ARM: 9390/2: lib: Annotate loop delay instructions for CFI
  ARM: 9389/2: mm: Define prototypes for all per-processor calls
  ARM: 9388/2: mm: Type-annotate all per-processor assembly routines
  ARM: 9387/2: mm: Rewrite cacheflush vtables in CFI safe C
  ARM: 9386/2: mm: Use symbol alias for cache functions
  ARM: 9385/2: mm: Type-annotate all cache assembly routines
  ARM: 9384/2: mm: Make tlbflush routines CFI safe
  ARM: 9382/1: ftrace: Define ftrace_stub_graph
  ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement
  ARM: 9357/2: Reduce the number of #ifdef CONFIG_CPU_SW_DOMAIN_PAN
  ARM: 9356/2: Move asm statements accessing TTBCR into C functions
  ARM: 9355/2: Add TTBCR_* definitions to pgtable-3level-hwdef.h
  ARM: 9379/1: coresight: tpda: drop owner assignment
  ARM: 9378/1: coresight: etm4x: drop owner assignment
  ARM: 9377/1: hwrng: nomadik: drop owner assignment
  ...

1 files changed, 24 insertions, 23 deletions

diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S
index 71c64e92dead..4a3668b52a2d 100644
--- a/arch/arm/mm/cache-fa.S
+++ b/arch/arm/mm/cache-fa.S
@@ -12,6 +12,7 @@
  */
 #include <linux/linkage.h>
 #include <linux/init.h>
+#include <linux/cfi_types.h>
 #include <asm/assembler.h>
 #include <asm/page.h>
 
@@ -39,11 +40,11 @@
  *
  *	Unconditionally clean and invalidate the entire icache.
  */
-ENTRY(fa_flush_icache_all)
+SYM_TYPED_FUNC_START(fa_flush_icache_all)
 	mov	r0, #0
 	mcr	p15, 0, r0, c7, c5, 0		@ invalidate I cache
 	ret	lr
-ENDPROC(fa_flush_icache_all)
+SYM_FUNC_END(fa_flush_icache_all)
 
 /*
  *	flush_user_cache_all()
@@ -51,14 +52,14 @@ ENDPROC(fa_flush_icache_all)
  *	Clean and invalidate all cache entries in a particular address
  *	space.
  */
-ENTRY(fa_flush_user_cache_all)
-	/* FALLTHROUGH */
+SYM_FUNC_ALIAS(fa_flush_user_cache_all, fa_flush_kern_cache_all)
+
 /*
  *	flush_kern_cache_all()
  *
  *	Clean and invalidate the entire cache.
  */
-ENTRY(fa_flush_kern_cache_all)
+SYM_TYPED_FUNC_START(fa_flush_kern_cache_all)
 	mov	ip, #0
 	mov	r2, #VM_EXEC
 __flush_whole_cache:
@@ -69,6 +70,7 @@ __flush_whole_cache:
 	mcrne	p15, 0, ip, c7, c10, 4		@ drain write buffer
 	mcrne	p15, 0, ip, c7, c5, 4		@ prefetch flush
 	ret	lr
+SYM_FUNC_END(fa_flush_kern_cache_all)
 
 /*
  *	flush_user_cache_range(start, end, flags)
@@ -80,7 +82,7 @@ __flush_whole_cache:
  *	- end	- end address (exclusive, page aligned)
  *	- flags	- vma_area_struct flags describing address space
  */
-ENTRY(fa_flush_user_cache_range)
+SYM_TYPED_FUNC_START(fa_flush_user_cache_range)
 	mov	ip, #0
 	sub	r3, r1, r0			@ calculate total size
 	cmp	r3, #CACHE_DLIMIT		@ total size >= limit?
@@ -97,6 +99,7 @@ ENTRY(fa_flush_user_cache_range)
 	mcrne	p15, 0, ip, c7, c10, 4		@ data write barrier
 	mcrne	p15, 0, ip, c7, c5, 4		@ prefetch flush
 	ret	lr
+SYM_FUNC_END(fa_flush_user_cache_range)
 
 /*
  *	coherent_kern_range(start, end)
@@ -108,8 +111,11 @@ ENTRY(fa_flush_user_cache_range)
  *	- start  - virtual start address
  *	- end	 - virtual end address
  */
-ENTRY(fa_coherent_kern_range)
-	/* fall through */
+SYM_TYPED_FUNC_START(fa_coherent_kern_range)
+#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */
+	b	fa_coherent_user_range
+#endif
+SYM_FUNC_END(fa_coherent_kern_range)
 
 /*
  *	coherent_user_range(start, end)
@@ -121,7 +127,7 @@ ENTRY(fa_coherent_kern_range)
  *	- start  - virtual start address
  *	- end	 - virtual end address
  */
-ENTRY(fa_coherent_user_range)
+SYM_TYPED_FUNC_START(fa_coherent_user_range)
 	bic	r0, r0, #CACHE_DLINESIZE - 1
 1:	mcr	p15, 0, r0, c7, c14, 1		@ clean and invalidate D entry
 	mcr	p15, 0, r0, c7, c5, 1		@ invalidate I entry
@@ -133,6 +139,7 @@ ENTRY(fa_coherent_user_range)
 	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	mcr	p15, 0, r0, c7, c5, 4		@ prefetch flush
 	ret	lr
+SYM_FUNC_END(fa_coherent_user_range)
 
 /*
  *	flush_kern_dcache_area(void *addr, size_t size)
@@ -143,7 +150,7 @@ ENTRY(fa_coherent_user_range)
  *	- addr	- kernel address
  *	- size	- size of region
  */
-ENTRY(fa_flush_kern_dcache_area)
+SYM_TYPED_FUNC_START(fa_flush_kern_dcache_area)
 	add	r1, r0, r1
 1:	mcr	p15, 0, r0, c7, c14, 1		@ clean & invalidate D line
 	add	r0, r0, #CACHE_DLINESIZE
@@ -153,6 +160,7 @@ ENTRY(fa_flush_kern_dcache_area)
 	mcr	p15, 0, r0, c7, c5, 0		@ invalidate I cache
 	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	ret	lr
+SYM_FUNC_END(fa_flush_kern_dcache_area)
 
 /*
  *	dma_inv_range(start, end)
@@ -203,7 +211,7 @@ fa_dma_clean_range:
  *	- start   - virtual start address of region
  *	- end     - virtual end address of region
  */
-ENTRY(fa_dma_flush_range)
+SYM_TYPED_FUNC_START(fa_dma_flush_range)
 	bic	r0, r0, #CACHE_DLINESIZE - 1
 1:	mcr	p15, 0, r0, c7, c14, 1		@ clean & invalidate D entry
 	add	r0, r0, #CACHE_DLINESIZE
@@ -212,6 +220,7 @@ ENTRY(fa_dma_flush_range)
 	mov	r0, #0	
 	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
 	ret	lr
+SYM_FUNC_END(fa_dma_flush_range)
 
 /*
  *	dma_map_area(start, size, dir)
@@ -219,13 +228,13 @@ ENTRY(fa_dma_flush_range)
  *	- size	- size of region
  *	- dir	- DMA direction
  */
-ENTRY(fa_dma_map_area)
+SYM_TYPED_FUNC_START(fa_dma_map_area)
 	add	r1, r1, r0
 	cmp	r2, #DMA_TO_DEVICE
 	beq	fa_dma_clean_range
 	bcs	fa_dma_inv_range
 	b	fa_dma_flush_range
-ENDPROC(fa_dma_map_area)
+SYM_FUNC_END(fa_dma_map_area)
 
 /*
  *	dma_unmap_area(start, size, dir)
@@ -233,14 +242,6 @@ ENDPROC(fa_dma_map_area)
  *	- size	- size of region
  *	- dir	- DMA direction
  */
-ENTRY(fa_dma_unmap_area)
+SYM_TYPED_FUNC_START(fa_dma_unmap_area)
 	ret	lr
-ENDPROC(fa_dma_unmap_area)
-
-	.globl	fa_flush_kern_cache_louis
-	.equ	fa_flush_kern_cache_louis, fa_flush_kern_cache_all
-
-	__INITDATA
-
-	@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
-	define_cache_functions fa
+SYM_FUNC_END(fa_dma_unmap_area)