From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: <linux-arch@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <arnd@arndb.de>, <arc-linux-dev@synopsys.com>,
Vineet Gupta <Vineet.Gupta1@synopsys.com>
Subject: [PATCH 06/28] ARCv2: MMUv4: TLB programming Model changes
Date: Tue, 9 Jun 2015 17:18:06 +0530 [thread overview]
Message-ID: <1433850508-26317-7-git-send-email-vgupta@synopsys.com> (raw)
In-Reply-To: <1433850508-26317-1-git-send-email-vgupta@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
arch/arc/Kconfig | 5 ++++
arch/arc/include/asm/arcregs.h | 2 +-
arch/arc/include/asm/mmu.h | 24 ++++++++++++++++++-
arch/arc/include/asm/pgtable.h | 10 ++++++++
arch/arc/mm/tlb.c | 54 +++++++++++++++++++++++++++++++++++++++---
arch/arc/mm/tlbex.S | 24 +++++++++++++++++++
6 files changed, 114 insertions(+), 5 deletions(-)
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index f72398847b5b..6568977bb302 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -267,6 +267,7 @@ choice
prompt "MMU Version"
default ARC_MMU_V3 if ARC_CPU_770
default ARC_MMU_V2 if ARC_CPU_750D
+ default ARC_MMU_V4 if ARC_CPU_HS
config ARC_MMU_V1
bool "MMU v1"
@@ -287,6 +288,10 @@ config ARC_MMU_V3
Variable Page size (1k-16k), var JTLB size 128 x (2 or 4)
Shared Address Spaces (SASID)
+config ARC_MMU_V4
+ bool "MMU v4"
+ depends on ISA_ARCV2
+
endchoice
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index d77362dbb864..3a56cd00c59e 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -325,7 +325,7 @@ struct bcr_generic {
*/
struct cpuinfo_arc_mmu {
- unsigned int ver:4, pg_sz_k:8, pad:8, u_dtlb:6, u_itlb:6;
+ unsigned int ver:4, pg_sz_k:8, s_pg_sz_m:8, u_dtlb:6, u_itlb:6;
unsigned int num_tlb:16, sets:12, ways:4;
};
diff --git a/arch/arc/include/asm/mmu.h b/arch/arc/include/asm/mmu.h
index 8c84ae98c337..0f9c3eb5327e 100644
--- a/arch/arc/include/asm/mmu.h
+++ b/arch/arc/include/asm/mmu.h
@@ -15,24 +15,41 @@
#define CONFIG_ARC_MMU_VER 2
#elif defined(CONFIG_ARC_MMU_V3)
#define CONFIG_ARC_MMU_VER 3
+#elif defined(CONFIG_ARC_MMU_V4)
+#define CONFIG_ARC_MMU_VER 4
#endif
/* MMU Management regs */
#define ARC_REG_MMU_BCR 0x06f
+#if (CONFIG_ARC_MMU_VER < 4)
#define ARC_REG_TLBPD0 0x405
#define ARC_REG_TLBPD1 0x406
#define ARC_REG_TLBINDEX 0x407
#define ARC_REG_TLBCOMMAND 0x408
#define ARC_REG_PID 0x409
#define ARC_REG_SCRATCH_DATA0 0x418
+#else
+#define ARC_REG_TLBPD0 0x460
+#define ARC_REG_TLBPD1 0x461
+#define ARC_REG_TLBINDEX 0x464
+#define ARC_REG_TLBCOMMAND 0x465
+#define ARC_REG_PID 0x468
+#define ARC_REG_SCRATCH_DATA0 0x46c
+#endif
/* Bits in MMU PID register */
-#define MMU_ENABLE (1 << 31) /* Enable MMU for process */
+#define __TLB_ENABLE (1 << 31)
+#define __PROG_ENABLE (1 << 30)
+#define MMU_ENABLE (__TLB_ENABLE | __PROG_ENABLE)
/* Error code if probe fails */
#define TLB_LKUP_ERR 0x80000000
+#if (CONFIG_ARC_MMU_VER < 4)
#define TLB_DUP_ERR (TLB_LKUP_ERR | 0x00000001)
+#else
+#define TLB_DUP_ERR (TLB_LKUP_ERR | 0x40000000)
+#endif
/* TLB Commands */
#define TLBWrite 0x1
@@ -45,6 +62,11 @@
#define TLBIVUTLB 0x6 /* explicitly inv uTLBs */
#endif
+#if (CONFIG_ARC_MMU_VER >= 4)
+#define TLBInsertEntry 0x7
+#define TLBDeleteEntry 0x8
+#endif
+
#ifndef __ASSEMBLY__
typedef struct {
diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
index 9615fe1701c6..1281718802f7 100644
--- a/arch/arc/include/asm/pgtable.h
+++ b/arch/arc/include/asm/pgtable.h
@@ -72,8 +72,18 @@
#define _PAGE_READ (1<<3) /* Page has user read perm (H) */
#define _PAGE_ACCESSED (1<<4) /* Page is accessed (S) */
#define _PAGE_MODIFIED (1<<5) /* Page modified (dirty) (S) */
+
+#if (CONFIG_ARC_MMU_VER >= 4)
+#define _PAGE_WTHRU (1<<7) /* Page cache mode write-thru (H) */
+#endif
+
#define _PAGE_GLOBAL (1<<8) /* Page is global (H) */
#define _PAGE_PRESENT (1<<9) /* TLB entry is valid (H) */
+
+#if (CONFIG_ARC_MMU_VER >= 4)
+#define _PAGE_SZ (1<<10) /* Page Size indicator (H) */
+#endif
+
#define _PAGE_SHARED_CODE (1<<11) /* Shared Code page with cmn vaddr
usable for shared TLB entries (H) */
#endif
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 914d8e0c0318..2c7ce8bb7475 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -113,6 +113,8 @@ static inline void __tlb_entry_erase(void)
write_aux_reg(ARC_REG_TLBCOMMAND, TLBWrite);
}
+#if (CONFIG_ARC_MMU_VER < 4)
+
static inline unsigned int tlb_entry_lkup(unsigned long vaddr_n_asid)
{
unsigned int idx;
@@ -210,6 +212,28 @@ static void tlb_entry_insert(unsigned int pd0, unsigned int pd1)
write_aux_reg(ARC_REG_TLBCOMMAND, TLBWrite);
}
+#else /* CONFIG_ARC_MMU_VER >= 4) */
+
+static void utlb_invalidate(void)
+{
+ /* No need since uTLB is always in sync with JTLB */
+}
+
+static void tlb_entry_erase(unsigned int vaddr_n_asid)
+{
+ write_aux_reg(ARC_REG_TLBPD0, vaddr_n_asid | _PAGE_PRESENT);
+ write_aux_reg(ARC_REG_TLBCOMMAND, TLBDeleteEntry);
+}
+
+static void tlb_entry_insert(unsigned int pd0, unsigned int pd1)
+{
+ write_aux_reg(ARC_REG_TLBPD0, pd0);
+ write_aux_reg(ARC_REG_TLBPD1, pd1);
+ write_aux_reg(ARC_REG_TLBCOMMAND, TLBInsertEntry);
+}
+
+#endif
+
/*
* Un-conditionally (without lookup) erase the entire MMU contents
*/
@@ -582,6 +606,17 @@ void read_decode_mmu_bcr(void)
#endif
} *mmu3;
+ struct bcr_mmu_4 {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int ver:8, sasid:1, sz1:4, sz0:4, res:2, pae:1,
+ n_ways:2, n_entry:2, n_super:2, u_itlb:3, u_dtlb:3;
+#else
+ /* DTLB ITLB JES JE JA */
+ unsigned int u_dtlb:3, u_itlb:3, n_super:2, n_entry:2, n_ways:2,
+ pae:1, res:2, sz0:4, sz1:4, sasid:1, ver:8;
+#endif
+ } *mmu4;
+
tmp = read_aux_reg(ARC_REG_MMU_BCR);
mmu->ver = (tmp >> 24);
@@ -592,13 +627,21 @@ void read_decode_mmu_bcr(void)
mmu->ways = 1 << mmu2->ways;
mmu->u_dtlb = mmu2->u_dtlb;
mmu->u_itlb = mmu2->u_itlb;
- } else {
+ } else if (mmu->ver == 3) {
mmu3 = (struct bcr_mmu_3 *)&tmp;
mmu->pg_sz_k = 1 << (mmu3->pg_sz - 1);
mmu->sets = 1 << mmu3->sets;
mmu->ways = 1 << mmu3->ways;
mmu->u_dtlb = mmu3->u_dtlb;
mmu->u_itlb = mmu3->u_itlb;
+ } else {
+ mmu4 = (struct bcr_mmu_4 *)&tmp;
+ mmu->pg_sz_k = 1 << (mmu4->sz0 - 1);
+ mmu->s_pg_sz_m = 1 << (mmu4->sz1 - 11);
+ mmu->sets = 64 << mmu4->n_entry;
+ mmu->ways = mmu4->n_ways * 2;
+ mmu->u_dtlb = mmu4->u_dtlb * 4;
+ mmu->u_itlb = mmu4->u_itlb * 4;
}
mmu->num_tlb = mmu->sets * mmu->ways;
@@ -608,10 +651,15 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
{
int n = 0;
struct cpuinfo_arc_mmu *p_mmu = &cpuinfo_arc700[cpu_id].mmu;
+ char super_pg[64] = "";
+
+ if (p_mmu->s_pg_sz_m)
+ scnprintf(super_pg, 64, "%dM Super Page%s, ",
+ p_mmu->s_pg_sz_m, " (not used)");
n += scnprintf(buf + n, len - n,
- "MMU [v%x]\t: %dk PAGE, JTLB %d (%dx%d), uDTLB %d, uITLB %d %s\n",
- p_mmu->ver, p_mmu->pg_sz_k,
+ "MMU [v%x]\t: %dk PAGE, %sJTLB %d (%dx%d), uDTLB %d, uITLB %d %s\n",
+ p_mmu->ver, p_mmu->pg_sz_k, super_pg,
p_mmu->num_tlb, p_mmu->sets, p_mmu->ways,
p_mmu->u_dtlb, p_mmu->u_itlb,
IS_ENABLED(CONFIG_ARC_MMU_SASID) ? ",SASID" : "");
diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S
index 00c8d7f772bc..8624ebd7114e 100644
--- a/arch/arc/mm/tlbex.S
+++ b/arch/arc/mm/tlbex.S
@@ -44,6 +44,7 @@
#include <asm/processor.h>
#include <asm/tlb-mmu1.h>
+#ifdef CONFIG_ISA_ARCOMPACT
;-----------------------------------------------------------------
; ARC700 Exception Handling doesn't auto-switch stack and it only provides
; ONE scratch AUX reg "ARC_REG_SCRATCH_DATA0"
@@ -121,6 +122,24 @@ ex_saved_reg1:
#endif
.endm
+#else /* ARCv2 */
+
+.macro TLBMISS_FREEUP_REGS
+ PUSH r0
+ PUSH r1
+ PUSH r2
+ PUSH r3
+.endm
+
+.macro TLBMISS_RESTORE_REGS
+ POP r3
+ POP r2
+ POP r1
+ POP r0
+.endm
+
+#endif
+
;============================================================================
; Troubleshooting Stuff
;============================================================================
@@ -239,6 +258,7 @@ ex_saved_reg1:
; Commit the TLB entry into MMU
.macro COMMIT_ENTRY_TO_MMU
+#if (CONFIG_ARC_MMU_VER < 4)
/* Get free TLB slot: Set = computed from vaddr, way = random */
sr TLBGetIndex, [ARC_REG_TLBCOMMAND]
@@ -249,6 +269,10 @@ ex_saved_reg1:
#else
sr TLBWrite, [ARC_REG_TLBCOMMAND]
#endif
+
+#else
+ sr TLBInsertEntry, [ARC_REG_TLBCOMMAND]
+#endif
.endm
--
1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: arnd@arndb.de, arc-linux-dev@synopsys.com,
Vineet Gupta <Vineet.Gupta1@synopsys.com>
Subject: [PATCH 06/28] ARCv2: MMUv4: TLB programming Model changes
Date: Tue, 9 Jun 2015 17:18:06 +0530 [thread overview]
Message-ID: <1433850508-26317-7-git-send-email-vgupta@synopsys.com> (raw)
In-Reply-To: <1433850508-26317-1-git-send-email-vgupta@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
arch/arc/Kconfig | 5 ++++
arch/arc/include/asm/arcregs.h | 2 +-
arch/arc/include/asm/mmu.h | 24 ++++++++++++++++++-
arch/arc/include/asm/pgtable.h | 10 ++++++++
arch/arc/mm/tlb.c | 54 +++++++++++++++++++++++++++++++++++++++---
arch/arc/mm/tlbex.S | 24 +++++++++++++++++++
6 files changed, 114 insertions(+), 5 deletions(-)
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index f72398847b5b..6568977bb302 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -267,6 +267,7 @@ choice
prompt "MMU Version"
default ARC_MMU_V3 if ARC_CPU_770
default ARC_MMU_V2 if ARC_CPU_750D
+ default ARC_MMU_V4 if ARC_CPU_HS
config ARC_MMU_V1
bool "MMU v1"
@@ -287,6 +288,10 @@ config ARC_MMU_V3
Variable Page size (1k-16k), var JTLB size 128 x (2 or 4)
Shared Address Spaces (SASID)
+config ARC_MMU_V4
+ bool "MMU v4"
+ depends on ISA_ARCV2
+
endchoice
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index d77362dbb864..3a56cd00c59e 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -325,7 +325,7 @@ struct bcr_generic {
*/
struct cpuinfo_arc_mmu {
- unsigned int ver:4, pg_sz_k:8, pad:8, u_dtlb:6, u_itlb:6;
+ unsigned int ver:4, pg_sz_k:8, s_pg_sz_m:8, u_dtlb:6, u_itlb:6;
unsigned int num_tlb:16, sets:12, ways:4;
};
diff --git a/arch/arc/include/asm/mmu.h b/arch/arc/include/asm/mmu.h
index 8c84ae98c337..0f9c3eb5327e 100644
--- a/arch/arc/include/asm/mmu.h
+++ b/arch/arc/include/asm/mmu.h
@@ -15,24 +15,41 @@
#define CONFIG_ARC_MMU_VER 2
#elif defined(CONFIG_ARC_MMU_V3)
#define CONFIG_ARC_MMU_VER 3
+#elif defined(CONFIG_ARC_MMU_V4)
+#define CONFIG_ARC_MMU_VER 4
#endif
/* MMU Management regs */
#define ARC_REG_MMU_BCR 0x06f
+#if (CONFIG_ARC_MMU_VER < 4)
#define ARC_REG_TLBPD0 0x405
#define ARC_REG_TLBPD1 0x406
#define ARC_REG_TLBINDEX 0x407
#define ARC_REG_TLBCOMMAND 0x408
#define ARC_REG_PID 0x409
#define ARC_REG_SCRATCH_DATA0 0x418
+#else
+#define ARC_REG_TLBPD0 0x460
+#define ARC_REG_TLBPD1 0x461
+#define ARC_REG_TLBINDEX 0x464
+#define ARC_REG_TLBCOMMAND 0x465
+#define ARC_REG_PID 0x468
+#define ARC_REG_SCRATCH_DATA0 0x46c
+#endif
/* Bits in MMU PID register */
-#define MMU_ENABLE (1 << 31) /* Enable MMU for process */
+#define __TLB_ENABLE (1 << 31)
+#define __PROG_ENABLE (1 << 30)
+#define MMU_ENABLE (__TLB_ENABLE | __PROG_ENABLE)
/* Error code if probe fails */
#define TLB_LKUP_ERR 0x80000000
+#if (CONFIG_ARC_MMU_VER < 4)
#define TLB_DUP_ERR (TLB_LKUP_ERR | 0x00000001)
+#else
+#define TLB_DUP_ERR (TLB_LKUP_ERR | 0x40000000)
+#endif
/* TLB Commands */
#define TLBWrite 0x1
@@ -45,6 +62,11 @@
#define TLBIVUTLB 0x6 /* explicitly inv uTLBs */
#endif
+#if (CONFIG_ARC_MMU_VER >= 4)
+#define TLBInsertEntry 0x7
+#define TLBDeleteEntry 0x8
+#endif
+
#ifndef __ASSEMBLY__
typedef struct {
diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
index 9615fe1701c6..1281718802f7 100644
--- a/arch/arc/include/asm/pgtable.h
+++ b/arch/arc/include/asm/pgtable.h
@@ -72,8 +72,18 @@
#define _PAGE_READ (1<<3) /* Page has user read perm (H) */
#define _PAGE_ACCESSED (1<<4) /* Page is accessed (S) */
#define _PAGE_MODIFIED (1<<5) /* Page modified (dirty) (S) */
+
+#if (CONFIG_ARC_MMU_VER >= 4)
+#define _PAGE_WTHRU (1<<7) /* Page cache mode write-thru (H) */
+#endif
+
#define _PAGE_GLOBAL (1<<8) /* Page is global (H) */
#define _PAGE_PRESENT (1<<9) /* TLB entry is valid (H) */
+
+#if (CONFIG_ARC_MMU_VER >= 4)
+#define _PAGE_SZ (1<<10) /* Page Size indicator (H) */
+#endif
+
#define _PAGE_SHARED_CODE (1<<11) /* Shared Code page with cmn vaddr
usable for shared TLB entries (H) */
#endif
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 914d8e0c0318..2c7ce8bb7475 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -113,6 +113,8 @@ static inline void __tlb_entry_erase(void)
write_aux_reg(ARC_REG_TLBCOMMAND, TLBWrite);
}
+#if (CONFIG_ARC_MMU_VER < 4)
+
static inline unsigned int tlb_entry_lkup(unsigned long vaddr_n_asid)
{
unsigned int idx;
@@ -210,6 +212,28 @@ static void tlb_entry_insert(unsigned int pd0, unsigned int pd1)
write_aux_reg(ARC_REG_TLBCOMMAND, TLBWrite);
}
+#else /* CONFIG_ARC_MMU_VER >= 4) */
+
+static void utlb_invalidate(void)
+{
+ /* No need since uTLB is always in sync with JTLB */
+}
+
+static void tlb_entry_erase(unsigned int vaddr_n_asid)
+{
+ write_aux_reg(ARC_REG_TLBPD0, vaddr_n_asid | _PAGE_PRESENT);
+ write_aux_reg(ARC_REG_TLBCOMMAND, TLBDeleteEntry);
+}
+
+static void tlb_entry_insert(unsigned int pd0, unsigned int pd1)
+{
+ write_aux_reg(ARC_REG_TLBPD0, pd0);
+ write_aux_reg(ARC_REG_TLBPD1, pd1);
+ write_aux_reg(ARC_REG_TLBCOMMAND, TLBInsertEntry);
+}
+
+#endif
+
/*
* Un-conditionally (without lookup) erase the entire MMU contents
*/
@@ -582,6 +606,17 @@ void read_decode_mmu_bcr(void)
#endif
} *mmu3;
+ struct bcr_mmu_4 {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int ver:8, sasid:1, sz1:4, sz0:4, res:2, pae:1,
+ n_ways:2, n_entry:2, n_super:2, u_itlb:3, u_dtlb:3;
+#else
+ /* DTLB ITLB JES JE JA */
+ unsigned int u_dtlb:3, u_itlb:3, n_super:2, n_entry:2, n_ways:2,
+ pae:1, res:2, sz0:4, sz1:4, sasid:1, ver:8;
+#endif
+ } *mmu4;
+
tmp = read_aux_reg(ARC_REG_MMU_BCR);
mmu->ver = (tmp >> 24);
@@ -592,13 +627,21 @@ void read_decode_mmu_bcr(void)
mmu->ways = 1 << mmu2->ways;
mmu->u_dtlb = mmu2->u_dtlb;
mmu->u_itlb = mmu2->u_itlb;
- } else {
+ } else if (mmu->ver == 3) {
mmu3 = (struct bcr_mmu_3 *)&tmp;
mmu->pg_sz_k = 1 << (mmu3->pg_sz - 1);
mmu->sets = 1 << mmu3->sets;
mmu->ways = 1 << mmu3->ways;
mmu->u_dtlb = mmu3->u_dtlb;
mmu->u_itlb = mmu3->u_itlb;
+ } else {
+ mmu4 = (struct bcr_mmu_4 *)&tmp;
+ mmu->pg_sz_k = 1 << (mmu4->sz0 - 1);
+ mmu->s_pg_sz_m = 1 << (mmu4->sz1 - 11);
+ mmu->sets = 64 << mmu4->n_entry;
+ mmu->ways = mmu4->n_ways * 2;
+ mmu->u_dtlb = mmu4->u_dtlb * 4;
+ mmu->u_itlb = mmu4->u_itlb * 4;
}
mmu->num_tlb = mmu->sets * mmu->ways;
@@ -608,10 +651,15 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
{
int n = 0;
struct cpuinfo_arc_mmu *p_mmu = &cpuinfo_arc700[cpu_id].mmu;
+ char super_pg[64] = "";
+
+ if (p_mmu->s_pg_sz_m)
+ scnprintf(super_pg, 64, "%dM Super Page%s, ",
+ p_mmu->s_pg_sz_m, " (not used)");
n += scnprintf(buf + n, len - n,
- "MMU [v%x]\t: %dk PAGE, JTLB %d (%dx%d), uDTLB %d, uITLB %d %s\n",
- p_mmu->ver, p_mmu->pg_sz_k,
+ "MMU [v%x]\t: %dk PAGE, %sJTLB %d (%dx%d), uDTLB %d, uITLB %d %s\n",
+ p_mmu->ver, p_mmu->pg_sz_k, super_pg,
p_mmu->num_tlb, p_mmu->sets, p_mmu->ways,
p_mmu->u_dtlb, p_mmu->u_itlb,
IS_ENABLED(CONFIG_ARC_MMU_SASID) ? ",SASID" : "");
diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S
index 00c8d7f772bc..8624ebd7114e 100644
--- a/arch/arc/mm/tlbex.S
+++ b/arch/arc/mm/tlbex.S
@@ -44,6 +44,7 @@
#include <asm/processor.h>
#include <asm/tlb-mmu1.h>
+#ifdef CONFIG_ISA_ARCOMPACT
;-----------------------------------------------------------------
; ARC700 Exception Handling doesn't auto-switch stack and it only provides
; ONE scratch AUX reg "ARC_REG_SCRATCH_DATA0"
@@ -121,6 +122,24 @@ ex_saved_reg1:
#endif
.endm
+#else /* ARCv2 */
+
+.macro TLBMISS_FREEUP_REGS
+ PUSH r0
+ PUSH r1
+ PUSH r2
+ PUSH r3
+.endm
+
+.macro TLBMISS_RESTORE_REGS
+ POP r3
+ POP r2
+ POP r1
+ POP r0
+.endm
+
+#endif
+
;============================================================================
; Troubleshooting Stuff
;============================================================================
@@ -239,6 +258,7 @@ ex_saved_reg1:
; Commit the TLB entry into MMU
.macro COMMIT_ENTRY_TO_MMU
+#if (CONFIG_ARC_MMU_VER < 4)
/* Get free TLB slot: Set = computed from vaddr, way = random */
sr TLBGetIndex, [ARC_REG_TLBCOMMAND]
@@ -249,6 +269,10 @@ ex_saved_reg1:
#else
sr TLBWrite, [ARC_REG_TLBCOMMAND]
#endif
+
+#else
+ sr TLBInsertEntry, [ARC_REG_TLBCOMMAND]
+#endif
.endm
--
1.9.1
next prev parent reply other threads:[~2015-06-09 11:59 UTC|newest]
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2015-06-09 11:48 [PATCH 00/28] ARCv2 port to Linux - (B) ISA / Core / platform support Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 01/28] ARCv2: [intc] HS38 core interrupt controller Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 02/28] ARCv2: Support for ARCv2 ISA and HS38x cores Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 03/28] ARCv2: STAR 9000793984: Handle return from intr to Delay Slot Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 04/28] ARCv2: STAR 9000808988: signals involving " Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 05/28] ARCv2: STAR 9000814690: Really Re-enable interrupts to avoid deadlocks Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta [this message]
2015-06-09 11:48 ` [PATCH 06/28] ARCv2: MMUv4: TLB programming Model changes Vineet Gupta
2015-06-09 11:48 ` [PATCH 07/28] ARCv2: MMUv4: cache programming model changes Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 08/28] ARCv2: MMUv4: support aliasing icache config Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 09/28] ARCv2: optimised string/mem lib routines Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 10/28] ARCv2: Adhere to Zero Delay loop restriction Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 11/28] ARCv2: extable: Enable sorting at build time Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-24 5:51 ` Vineet Gupta
2015-06-24 5:51 ` Vineet Gupta
2015-06-29 20:38 ` David Daney
2015-06-30 4:41 ` Vineet Gupta
2015-06-30 4:41 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 12/28] ARCv2: clocksource: Introduce 64bit local RTC counter Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 13/28] ARC: make plat_smp_ops weak to allow over-rides Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 14/28] ARCv2: SMP: ARConnect debug/robustness Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 15/28] ARCv2: SMP: clocksource: Enable Global Real Time counter Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 16/28] ARCv2: SMP: intc: IDU 2nd level intc for dynamic IRQ distribution Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 17/28] ARC: add compiler barrier to LLSC based cmpxchg Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 12:23 ` Peter Zijlstra
2015-06-09 11:48 ` [PATCH 18/28] ARC: add smp barriers around atomics per memory-barrriers.txt Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 12:30 ` Peter Zijlstra
2015-06-10 9:17 ` Vineet Gupta
2015-06-10 10:53 ` Peter Zijlstra
2015-06-11 13:03 ` Vineet Gupta
2015-06-12 12:15 ` [PATCH v2] ARC: add smp barriers around atomics per Documentation/atomic_ops.txt Vineet Gupta
2015-06-12 12:15 ` Vineet Gupta
2015-06-12 13:04 ` Peter Zijlstra
2015-06-12 13:16 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 19/28] arch: conditionally define smp_{mb,rmb,wmb} Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 12:32 ` Peter Zijlstra
2015-06-09 11:48 ` [PATCH 20/28] ARCv2: barriers Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 12:40 ` Peter Zijlstra
2015-06-10 9:34 ` Vineet Gupta
2015-06-10 10:58 ` Peter Zijlstra
2015-06-10 13:01 ` Will Deacon
2015-06-11 12:13 ` Vineet Gupta
2015-06-11 13:39 ` Will Deacon
2015-06-19 13:13 ` Vineet Gupta
2015-06-19 13:13 ` Vineet Gupta
2015-06-19 13:13 ` Vineet Gupta
2015-06-22 13:36 ` Will Deacon
2015-06-22 13:36 ` Will Deacon
2015-06-22 13:36 ` Will Deacon
2015-06-23 7:58 ` [PATCH v2 " Vineet Gupta
2015-06-23 7:58 ` Vineet Gupta
2015-06-23 8:49 ` Will Deacon
2015-06-23 9:03 ` Vineet Gupta
2015-06-23 9:26 ` Will Deacon
2015-06-23 9:52 ` [PATCH v3 22/28] " Vineet Gupta
2015-06-23 9:52 ` Vineet Gupta
2015-06-23 16:28 ` Will Deacon
2015-06-23 9:25 ` [PATCH v2 20/28] " Peter Zijlstra
2015-06-23 8:02 ` [PATCH " Vineet Gupta
2015-06-09 11:48 ` [PATCH 21/28] ARC: Reduce bitops lines of code using macros Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-12 12:20 ` [PATCH v2] " Vineet Gupta
2015-06-12 12:20 ` Vineet Gupta
2015-06-12 13:05 ` Peter Zijlstra
2015-06-09 11:48 ` [PATCH 22/28] ARCv2: STAR 9000837815 workaround hardware exclusive transactions livelock Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 12:35 ` Peter Zijlstra
2015-06-10 10:01 ` Vineet Gupta
2015-06-10 11:02 ` Peter Zijlstra
2015-06-19 9:55 ` [PATCH v2 " Vineet Gupta
2015-06-19 9:55 ` Vineet Gupta
2015-06-19 9:59 ` Will Deacon
2015-06-19 10:09 ` Vineet Gupta
2015-06-23 7:59 ` Vineet Gupta
2015-06-23 7:59 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 23/28] ARCv2: SLC: Handle explcit flush for DMA ops (w/o IO-coherency) Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 24/28] ARCv2: All bits in place, allow ARCv2 builds Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 25/28] ARCv2: [nsim*hs*] Support simulation platforms for HS38x cores Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 26/28] ARC: [axs101] Prepare for AXS103 Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 27/28] ARCv2: [axs103] Support ARC SDP FPGA platform for HS38x cores Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
2015-06-09 11:48 ` [PATCH 28/28] ARCv2: [vdk] dts files and defconfig for HS38 VDK Vineet Gupta
2015-06-09 11:48 ` Vineet Gupta
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