From 816242da3735957bee99aeba40aa60c4f120a101 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 23 May 2005 15:52:08 -0700 Subject: [PATCH 1/3] [SPARC64]: Add boot option to force UltraSPARC-III P-Cache on. Older UltraSPARC-III chips have a P-Cache bug that makes us disable it by default at boot time. However, this does hurt performance substantially, particularly with memcpy(), and the bug is _incredibly_ obscure. I have never seen it triggered in practice, ever. So provide a "-P" boot option that forces the P-Cache on. It taints the kernel, so if it does trigger and cause some data corruption or OOPS, we will find out in the logs that this option was on when it happened. Signed-off-by: David S. Miller --- arch/sparc64/kernel/setup.c | 11 +++++++++++ arch/sparc64/kernel/smp.c | 3 +++ arch/sparc64/kernel/traps.c | 19 +++++++++++++++++++ include/asm-sparc64/spitfire.h | 3 +++ 4 files changed, 36 insertions(+) diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index 12c3d84b7460..b7e6a91952b2 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -383,6 +383,17 @@ static void __init process_switch(char c) /* Use PROM debug console. */ register_console(&prom_debug_console); break; + case 'P': + /* Force UltraSPARC-III P-Cache on. */ + if (tlb_type != cheetah) { + printk("BOOT: Ignoring P-Cache force option.\n"); + break; + } + cheetah_pcache_forced_on = 1; + add_taint(TAINT_MACHINE_CHECK); + cheetah_enable_pcache(); + break; + default: printk("Unknown boot switch (-%c)\n", c); break; diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 6dff06a44e76..e5b9c7a27789 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -123,6 +123,9 @@ void __init smp_callin(void) smp_setup_percpu_timer(); + if (cheetah_pcache_forced_on) + cheetah_enable_pcache(); + local_irq_enable(); calibrate_delay(); diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 56b203a2af69..a9f4596d7c2b 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -421,6 +421,25 @@ asmlinkage void cee_log(unsigned long ce_status, } } +int cheetah_pcache_forced_on; + +void cheetah_enable_pcache(void) +{ + unsigned long dcr; + + printk("CHEETAH: Enabling P-Cache on cpu %d.\n", + smp_processor_id()); + + __asm__ __volatile__("ldxa [%%g0] %1, %0" + : "=r" (dcr) + : "i" (ASI_DCU_CONTROL_REG)); + dcr |= (DCU_PE | DCU_HPE | DCU_SPE | DCU_SL); + __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" + "membar #Sync" + : /* no outputs */ + : "r" (dcr), "i" (ASI_DCU_CONTROL_REG)); +} + /* Cheetah error trap handling. */ static unsigned long ecache_flush_physbase; static unsigned long ecache_flush_linesize; diff --git a/include/asm-sparc64/spitfire.h b/include/asm-sparc64/spitfire.h index ad78ce64d69e..9d7613eea812 100644 --- a/include/asm-sparc64/spitfire.h +++ b/include/asm-sparc64/spitfire.h @@ -48,6 +48,9 @@ enum ultra_tlb_layout { extern enum ultra_tlb_layout tlb_type; +extern int cheetah_pcache_forced_on; +extern void cheetah_enable_pcache(void); + #define sparc64_highest_locked_tlbent() \ (tlb_type == spitfire ? \ SPITFIRE_HIGHEST_LOCKED_TLBENT : \ From 525a099771d348a25d12ef9c47aa8680c7317e35 Mon Sep 17 00:00:00 2001 From: NAKAMURA Kenta Date: Wed, 25 May 2005 19:28:38 -0400 Subject: [PATCH 2/3] [PATCH] sata_sil: new ID 1002:437A for ATI IXP400 --- drivers/scsi/sata_sil.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c index f0489dc302a0..2b2ff48be396 100644 --- a/drivers/scsi/sata_sil.c +++ b/drivers/scsi/sata_sil.c @@ -82,6 +82,7 @@ static struct pci_device_id sil_pci_tbl[] = { { 0x1095, 0x3114, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3114 }, { 0x1002, 0x436e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112 }, { 0x1002, 0x4379, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112 }, + { 0x1002, 0x437a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112 }, { } /* terminate list */ }; From 4c3a53d4108367f639e5e0fe9366dfd7679c5514 Mon Sep 17 00:00:00 2001 From: Francisco Javier Date: Wed, 25 May 2005 19:29:37 -0400 Subject: [PATCH 3/3] [PATCH] sata_promise: add PCI ID for FastTrak TX2200 2-ports --- drivers/scsi/sata_promise.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c index 19a13e3590f4..c4e9e0298122 100644 --- a/drivers/scsi/sata_promise.c +++ b/drivers/scsi/sata_promise.c @@ -151,6 +151,8 @@ static struct ata_port_info pdc_port_info[] = { static struct pci_device_id pdc_ata_pci_tbl[] = { { PCI_VENDOR_ID_PROMISE, 0x3371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, board_2037x }, + { PCI_VENDOR_ID_PROMISE, 0x3571, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2037x }, { PCI_VENDOR_ID_PROMISE, 0x3373, PCI_ANY_ID, PCI_ANY_ID, 0, 0, board_2037x }, { PCI_VENDOR_ID_PROMISE, 0x3375, PCI_ANY_ID, PCI_ANY_ID, 0, 0,