From 0bfa130e741f8f73a7bbf6a89aad4816e9094a71 Mon Sep 17 00:00:00 2001
From: Chris Dearman <chris@mips.com>
Date: Fri, 14 Sep 2007 21:21:58 +0100
Subject: [PATCH] [MIPS] Remove TLB sanitation code
It is not being used by Malta and shouldn't be needed for MIPSsim.
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/kernel/smp-mt.c | 47 -----------------------------------
arch/mips/kernel/smtc.c | 8 ------
arch/mips/mipssim/sim_setup.c | 6 -----
3 files changed, 61 deletions(-)
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 89e6f6aa5166f..e9c393a41775a 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -58,53 +58,6 @@ static void dump_mtregisters(int vpe, int tc)
}
#endif
-void __init sanitize_tlb_entries(void)
-{
- int i, tlbsiz;
- unsigned long mvpconf0, ncpu;
-
- if (!cpu_has_mipsmt)
- return;
-
- /* Enable VPC */
- set_c0_mvpcontrol(MVPCONTROL_VPC);
-
- back_to_back_c0_hazard();
-
- /* Disable TLB sharing */
- clear_c0_mvpcontrol(MVPCONTROL_STLB);
-
- mvpconf0 = read_c0_mvpconf0();
-
- printk(KERN_INFO "MVPConf0 0x%lx TLBS %lx PTLBE %ld\n", mvpconf0,
- (mvpconf0 & MVPCONF0_TLBS) >> MVPCONF0_TLBS_SHIFT,
- (mvpconf0 & MVPCONF0_PTLBE) >> MVPCONF0_PTLBE_SHIFT);
-
- tlbsiz = (mvpconf0 & MVPCONF0_PTLBE) >> MVPCONF0_PTLBE_SHIFT;
- ncpu = ((mvpconf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1;
-
- printk(" tlbsiz %d ncpu %ld\n", tlbsiz, ncpu);
-
- if (tlbsiz > 0) {
- /* share them out across the vpe's */
- tlbsiz /= ncpu;
-
- printk(KERN_INFO "setting Config1.MMU_size to %d\n", tlbsiz);
-
- for (i = 0; i < ncpu; i++) {
- settc(i);
-
- if (i == 0)
- write_c0_config1((read_c0_config1() & ~(0x3f << 25)) | (tlbsiz << 25));
- else
- write_vpe_c0_config1((read_vpe_c0_config1() & ~(0x3f << 25)) |
- (tlbsiz << 25));
- }
- }
-
- clear_c0_mvpcontrol(MVPCONTROL_VPC);
-}
-
static void ipi_resched_dispatch(void)
{
do_IRQ(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ);
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index b42e71c711199..4705b3c11e5fe 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -174,14 +174,6 @@ static int clock_hang_reported[NR_CPUS];
#endif /* CONFIG_SMTC_IDLE_HOOK_DEBUG */
-/* Initialize shared TLB - the should probably migrate to smtc_setup_cpus() */
-
-void __init sanitize_tlb_entries(void)
-{
- printk("Deprecated sanitize_tlb_entries() invoked\n");
-}
-
-
/*
* Configure shared TLB - VPC configuration bit must be set by caller
*/
diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c
index d49fe73426b74..7c7148ef26463 100644
--- a/arch/mips/mipssim/sim_setup.c
+++ b/arch/mips/mipssim/sim_setup.c
@@ -39,9 +39,6 @@
static void __init serial_init(void);
unsigned int _isbonito = 0;
-extern void __init sanitize_tlb_entries(void);
-
-
const char *get_system_type(void)
{
return "MIPSsim";
@@ -55,9 +52,6 @@ void __init plat_mem_setup(void)
pr_info("Linux started...\n");
-#ifdef CONFIG_MIPS_MT_SMP
- sanitize_tlb_entries();
-#endif
}
extern struct plat_smp_ops ssmtc_smp_ops;
--
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