[PATCH 2/4] MIPS: Remove kernel_uses_smartmips_rixi use from arch/mips/mm.

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From: "Steven J. Hill" <sjhill@xxxxxxxx>

Remove usage of the 'kernel_uses_smartmips_rixi' macro from all files
in the 'arch/mips/mm' subsystem.

Signed-off-by: Steven J. Hill <sjhill@xxxxxxxx>
---
 arch/mips/mm/cache.c   |    2 +-
 arch/mips/mm/fault.c   |    4 +++-
 arch/mips/mm/tlb-r4k.c |    7 +++++--
 arch/mips/mm/tlbex.c   |   14 +++++++-------
 4 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index ff910a1..b478c51 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -183,7 +183,7 @@ EXPORT_SYMBOL(_page_cachable_default);
 
 static inline void setup_protection_map(void)
 {
-	if (kernel_uses_smartmips_rixi) {
+	if (cpu_has_ri | cpu_has_xi) {
 		protection_map[0]  = __pgprot(_page_cachable_default | _PAGE_PRESENT | _PAGE_NO_EXEC | _PAGE_NO_READ);
 		protection_map[1]  = __pgprot(_page_cachable_default | _PAGE_PRESENT | _PAGE_NO_EXEC);
 		protection_map[2]  = __pgprot(_page_cachable_default | _PAGE_PRESENT | _PAGE_NO_EXEC | _PAGE_NO_READ);
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index c14f6df..153aeee 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -114,7 +114,7 @@ good_area:
 		if (!(vma->vm_flags & VM_WRITE))
 			goto bad_area;
 	} else {
-		if (kernel_uses_smartmips_rixi) {
+		if (cpu_has_xi) {
 			if (address == regs->cp0_epc && !(vma->vm_flags & VM_EXEC)) {
 #if 0
 				pr_notice("Cpu%d[%s:%d:%0*lx:%ld:%0*lx] XI violation\n",
@@ -125,6 +125,8 @@ good_area:
 #endif
 				goto bad_area;
 			}
+		}
+		else if (cpu_has_ri) {
 			if (!(vma->vm_flags & VM_READ)) {
 #if 0
 				pr_notice("Cpu%d[%s:%d:%0*lx:%ld:%0*lx] RI violation\n",
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index d2572cb..df894f8 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -401,12 +401,15 @@ void __cpuinit tlb_init(void)
 	    current_cpu_type() == CPU_R14000)
 		write_c0_framemask(0);
 
-	if (kernel_uses_smartmips_rixi) {
+	if (cpu_has_ri | cpu_has_xi) {
+		u32 pg;
+
 		/*
 		 * Enable the no read, no exec bits, and enable large virtual
 		 * address.
 		 */
-		u32 pg = PG_RIE | PG_XIE;
+		pg = (cpu_has_ri ? PG_RIE : 0);
+		pg |= (cpu_has_xi ? PG_XIE : 0);
 #ifdef CONFIG_64BIT
 		pg |= PG_ELPA;
 #endif
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index e565d45..90c86ee 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -601,7 +601,7 @@ static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l,
 static __cpuinit __maybe_unused void build_convert_pte_to_entrylo(u32 **p,
 								  unsigned int reg)
 {
-	if (kernel_uses_smartmips_rixi) {
+	if (cpu_has_ri | cpu_has_xi) {
 		UASM_i_SRL(p, reg, reg, ilog2(_PAGE_NO_EXEC));
 		UASM_i_ROTR(p, reg, reg, ilog2(_PAGE_GLOBAL) - ilog2(_PAGE_NO_EXEC));
 	} else {
@@ -1021,7 +1021,7 @@ static void __cpuinit build_update_entries(u32 **p, unsigned int tmp,
 	if (cpu_has_64bits) {
 		uasm_i_ld(p, tmp, 0, ptep); /* get even pte */
 		uasm_i_ld(p, ptep, sizeof(pte_t), ptep); /* get odd pte */
-		if (kernel_uses_smartmips_rixi) {
+		if (cpu_has_ri | cpu_has_xi) {
 			UASM_i_SRL(p, tmp, tmp, ilog2(_PAGE_NO_EXEC));
 			UASM_i_SRL(p, ptep, ptep, ilog2(_PAGE_NO_EXEC));
 			UASM_i_ROTR(p, tmp, tmp, ilog2(_PAGE_GLOBAL) - ilog2(_PAGE_NO_EXEC));
@@ -1048,7 +1048,7 @@ static void __cpuinit build_update_entries(u32 **p, unsigned int tmp,
 	UASM_i_LW(p, ptep, sizeof(pte_t), ptep); /* get odd pte */
 	if (r45k_bvahwbug())
 		build_tlb_probe_entry(p);
-	if (kernel_uses_smartmips_rixi) {
+	if (cpu_has_ri | cpu_has_xi) {
 		UASM_i_SRL(p, tmp, tmp, ilog2(_PAGE_NO_EXEC));
 		UASM_i_SRL(p, ptep, ptep, ilog2(_PAGE_NO_EXEC));
 		UASM_i_ROTR(p, tmp, tmp, ilog2(_PAGE_GLOBAL) - ilog2(_PAGE_NO_EXEC));
@@ -1214,7 +1214,7 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l,
 		UASM_i_LW(p, even, 0, ptr); /* get even pte */
 		UASM_i_LW(p, odd, sizeof(pte_t), ptr); /* get odd pte */
 	}
-	if (kernel_uses_smartmips_rixi) {
+	if (cpu_has_ri | cpu_has_xi) {
 		uasm_i_dsrl_safe(p, even, even, ilog2(_PAGE_NO_EXEC));
 		uasm_i_dsrl_safe(p, odd, odd, ilog2(_PAGE_NO_EXEC));
 		uasm_i_drotr(p, even, even,
@@ -1576,7 +1576,7 @@ build_pte_present(u32 **p, struct uasm_reloc **r,
 {
 	int t = scratch >= 0 ? scratch : pte;
 
-	if (kernel_uses_smartmips_rixi) {
+	if (cpu_has_ri | cpu_has_xi) {
 		if (use_bbit_insns()) {
 			uasm_il_bbit0(p, r, pte, ilog2(_PAGE_PRESENT), lid);
 			uasm_i_nop(p);
@@ -1906,7 +1906,7 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
 	if (m4kc_tlbp_war())
 		build_tlb_probe_entry(&p);
 
-	if (kernel_uses_smartmips_rixi) {
+	if (cpu_has_ri | cpu_has_xi) {
 		/*
 		 * If the page is not _PAGE_VALID, RI or XI could not
 		 * have triggered it.  Skip the expensive test..
@@ -1960,7 +1960,7 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
 	build_pte_present(&p, &r, wr.r1, wr.r2, wr.r3, label_nopage_tlbl);
 	build_tlb_probe_entry(&p);
 
-	if (kernel_uses_smartmips_rixi) {
+	if (cpu_has_ri | cpu_has_xi) {
 		/*
 		 * If the page is not _PAGE_VALID, RI or XI could not
 		 * have triggered it.  Skip the expensive test..
-- 
1.7.9.5




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