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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin

Browse source 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
  Blackfin: fix SMP build error in start_thread()
  Blackfin: fix memset in smp_send_reschedule() and -stop()
  Blackfin: fix typo in ptrace poking
  Blackfin: check for anomaly 05000475
  Blackfin: work around testset anomaly 05000477
  Blackfin: update anomaly lists
  Blackfin: fix cache Kconfig typo
  Blackfin: fix suspend/resume failure with some on-chip ROMs
This commit is contained in:
Linus Torvalds 2009-11-30 14:51:29 -08:00
commit 5ebacb2712
14 changed files with 138 additions and 42 deletions
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9
arch/blackfin/kernel/bfin_dma_5xx.c
View file

@ -225,8 +225,13 @@ int blackfin_dma_suspend(void)
void blackfin_dma_resume(void)
{
int i;
for (i = 0; i < MAX_DMA_SUSPEND_CHANNELS; ++i)
dma_ch[i].regs->peripheral_map = dma_ch[i].saved_peripheral_map;
for (i = 0; i < MAX_DMA_CHANNELS; ++i) {
dma_ch[i].regs->cfg = 0;
if (i < MAX_DMA_SUSPEND_CHANNELS)
dma_ch[i].regs->peripheral_map = dma_ch[i].saved_peripheral_map;
}
}
#endif

2
arch/blackfin/kernel/cplb-mpu/cplbinit.c
View file

@ -38,7 +38,7 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE
d_cache = CPLB_L1_CHBL;
#ifdef CONFIG_BFIN_EXTMEM_WRITETROUGH
#ifdef CONFIG_BFIN_EXTMEM_WRITETHROUGH
d_cache |= CPLB_L1_AOW | CPLB_WT;
#endif
#endif

2
arch/blackfin/kernel/process.c
View file

@ -151,7 +151,7 @@ void start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_
regs->pc = new_ip;
if (current->mm)
regs->p5 = current->mm->start_data;
#ifdef CONFIG_SMP
#ifndef CONFIG_SMP
task_thread_info(current)->l1_task_info.stack_start =
(void *)current->mm->context.stack_start;
task_thread_info(current)->l1_task_info.lowest_sp = (void *)new_sp;

2
arch/blackfin/kernel/ptrace.c
View file

@ -315,7 +315,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case BFIN_MEM_ACCESS_CORE:
case BFIN_MEM_ACCESS_CORE_ONLY:
copied = access_process_vm(child, addr, &data,
to_copy, 0);
to_copy, 1);
if (copied)
break;

18
arch/blackfin/mach-bf518/include/mach/anomaly.h
View file

@ -1,9 +1,13 @@
/*
* File: include/asm-blackfin/mach-bf518/anomaly.h
* Bugs: Enter bugs at http://blackfin.uclinux.org/
* DO NOT EDIT THIS FILE
* This file is under version control at
* svn://sources.blackfin.uclinux.org/toolchain/trunk/proc-defs/header-frags/
* and can be replaced with that version at any time
* DO NOT EDIT THIS FILE
*
* Copyright (C) 2004-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
* Copyright 2004-2009 Analog Devices Inc.
* Licensed under the ADI BSD license.
* https://docs.blackfin.uclinux.org/doku.php?id=adi_bsd
*/
/* This file should be up to date with:
@ -70,6 +74,10 @@
#define ANOMALY_05000461 (1)
/* Synchronization Problem at Startup May Cause SPORT Transmit Channels to Misalign */
#define ANOMALY_05000462 (1)
/* Interrupted 32-Bit SPORT Data Register Access Results In Underflow */
#define ANOMALY_05000473 (1)
/* TESTSET Instruction Cannot Be Interrupted */
#define ANOMALY_05000477 (1)
/* Anomalies that don't exist on this proc */
#define ANOMALY_05000099 (0)
@ -133,5 +141,7 @@
#define ANOMALY_05000450 (0)
#define ANOMALY_05000465 (0)
#define ANOMALY_05000467 (0)
#define ANOMALY_05000474 (0)
#define ANOMALY_05000475 (0)
#endif

20
arch/blackfin/mach-bf527/include/mach/anomaly.h
View file

@ -1,14 +1,18 @@
/*
* File: include/asm-blackfin/mach-bf527/anomaly.h
* Bugs: Enter bugs at http://blackfin.uclinux.org/
* DO NOT EDIT THIS FILE
* This file is under version control at
* svn://sources.blackfin.uclinux.org/toolchain/trunk/proc-defs/header-frags/
* and can be replaced with that version at any time
* DO NOT EDIT THIS FILE
*
* Copyright (C) 2004-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
* Copyright 2004-2009 Analog Devices Inc.
* Licensed under the ADI BSD license.
* https://docs.blackfin.uclinux.org/doku.php?id=adi_bsd
*/
/* This file should be up to date with:
* - Revision D, 08/14/2009; ADSP-BF526 Blackfin Processor Anomaly List
* - Revision F, 03/03/2009; ADSP-BF527 Blackfin Processor Anomaly List
* - Revision G, 08/25/2009; ADSP-BF527 Blackfin Processor Anomaly List
*/
#ifndef _MACH_ANOMALY_H_
@ -200,6 +204,10 @@
#define ANOMALY_05000467 (1)
/* PLL Latches Incorrect Settings During Reset */
#define ANOMALY_05000469 (1)
/* Interrupted 32-Bit SPORT Data Register Access Results In Underflow */
#define ANOMALY_05000473 (1)
/* TESTSET Instruction Cannot Be Interrupted */
#define ANOMALY_05000477 (1)
/* Anomalies that don't exist on this proc */
#define ANOMALY_05000099 (0)
@ -250,5 +258,7 @@
#define ANOMALY_05000412 (0)
#define ANOMALY_05000447 (0)
#define ANOMALY_05000448 (0)
#define ANOMALY_05000474 (0)
#define ANOMALY_05000475 (0)
#endif

18
arch/blackfin/mach-bf533/include/mach/anomaly.h
View file

@ -1,9 +1,13 @@
/*
* File: include/asm-blackfin/mach-bf533/anomaly.h
* Bugs: Enter bugs at http://blackfin.uclinux.org/
* DO NOT EDIT THIS FILE
* This file is under version control at
* svn://sources.blackfin.uclinux.org/toolchain/trunk/proc-defs/header-frags/
* and can be replaced with that version at any time
* DO NOT EDIT THIS FILE
*
* Copyright (C) 2004-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
* Copyright 2004-2009 Analog Devices Inc.
* Licensed under the ADI BSD license.
* https://docs.blackfin.uclinux.org/doku.php?id=adi_bsd
*/
/* This file should be up to date with:
@ -202,6 +206,10 @@
#define ANOMALY_05000443 (1)
/* False Hardware Error when RETI Points to Invalid Memory */
#define ANOMALY_05000461 (1)
/* Interrupted 32-Bit SPORT Data Register Access Results In Underflow */
#define ANOMALY_05000473 (1)
/* TESTSET Instruction Cannot Be Interrupted */
#define ANOMALY_05000477 (1)
/* These anomalies have been "phased" out of analog.com anomaly sheets and are
* here to show running on older silicon just isn't feasible.
@ -349,5 +357,7 @@
#define ANOMALY_05000450 (0)
#define ANOMALY_05000465 (0)
#define ANOMALY_05000467 (0)
#define ANOMALY_05000474 (0)
#define ANOMALY_05000475 (0)
#endif

18
arch/blackfin/mach-bf537/include/mach/anomaly.h
View file

@ -1,9 +1,13 @@
/*
* File: include/asm-blackfin/mach-bf537/anomaly.h
* Bugs: Enter bugs at http://blackfin.uclinux.org/
* DO NOT EDIT THIS FILE
* This file is under version control at
* svn://sources.blackfin.uclinux.org/toolchain/trunk/proc-defs/header-frags/
* and can be replaced with that version at any time
* DO NOT EDIT THIS FILE
*
* Copyright (C) 2004-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
* Copyright 2004-2009 Analog Devices Inc.
* Licensed under the ADI BSD license.
* https://docs.blackfin.uclinux.org/doku.php?id=adi_bsd
*/
/* This file should be up to date with:
@ -156,6 +160,10 @@
#define ANOMALY_05000443 (1)
/* False Hardware Error when RETI Points to Invalid Memory */
#define ANOMALY_05000461 (1)
/* Interrupted 32-Bit SPORT Data Register Access Results In Underflow */
#define ANOMALY_05000473 (1)
/* TESTSET Instruction Cannot Be Interrupted */
#define ANOMALY_05000477 (1)
/* Anomalies that don't exist on this proc */
#define ANOMALY_05000099 (0)
@ -202,5 +210,7 @@
#define ANOMALY_05000450 (0)
#define ANOMALY_05000465 (0)
#define ANOMALY_05000467 (0)
#define ANOMALY_05000474 (0)
#define ANOMALY_05000475 (0)
#endif

18
arch/blackfin/mach-bf538/include/mach/anomaly.h
View file

@ -1,9 +1,13 @@
/*
* File: include/asm-blackfin/mach-bf538/anomaly.h
* Bugs: Enter bugs at http://blackfin.uclinux.org/
* DO NOT EDIT THIS FILE
* This file is under version control at
* svn://sources.blackfin.uclinux.org/toolchain/trunk/proc-defs/header-frags/
* and can be replaced with that version at any time
* DO NOT EDIT THIS FILE
*
* Copyright (C) 2004-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
* Copyright 2004-2009 Analog Devices Inc.
* Licensed under the ADI BSD license.
* https://docs.blackfin.uclinux.org/doku.php?id=adi_bsd
*/
/* This file should be up to date with:
@ -128,6 +132,10 @@
#define ANOMALY_05000443 (1)
/* False Hardware Error when RETI Points to Invalid Memory */
#define ANOMALY_05000461 (1)
/* Interrupted 32-Bit SPORT Data Register Access Results In Underflow */
#define ANOMALY_05000473 (1)
/* TESTSET Instruction Cannot Be Interrupted */
#define ANOMALY_05000477 (1)
/* Anomalies that don't exist on this proc */
#define ANOMALY_05000099 (0)
@ -176,5 +184,7 @@
#define ANOMALY_05000450 (0)
#define ANOMALY_05000465 (0)
#define ANOMALY_05000467 (0)
#define ANOMALY_05000474 (0)
#define ANOMALY_05000475 (0)
#endif

23
arch/blackfin/mach-bf548/include/mach/anomaly.h
View file

@ -1,9 +1,13 @@
/*
* File: include/asm-blackfin/mach-bf548/anomaly.h
* Bugs: Enter bugs at http://blackfin.uclinux.org/
* DO NOT EDIT THIS FILE
* This file is under version control at
* svn://sources.blackfin.uclinux.org/toolchain/trunk/proc-defs/header-frags/
* and can be replaced with that version at any time
* DO NOT EDIT THIS FILE
*
* Copyright (C) 2004-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
* Copyright 2004-2009 Analog Devices Inc.
* Licensed under the ADI BSD license.
* https://docs.blackfin.uclinux.org/doku.php?id=adi_bsd
*/
/* This file should be up to date with:
@ -24,6 +28,8 @@
#define ANOMALY_05000119 (1)
/* Rx.H Cannot Be Used to Access 16-bit System MMR Registers */
#define ANOMALY_05000122 (1)
/* Data Corruption with Cached External Memory and Non-Cached On-Chip L2 Memory */
#define ANOMALY_05000220 (1)
/* False Hardware Error from an Access in the Shadow of a Conditional Branch */
#define ANOMALY_05000245 (1)
/* Sensitivity To Noise with Slow Input Edge Rates on External SPORT TX and RX Clocks */
@ -200,6 +206,14 @@
#define ANOMALY_05000466 (1)
/* Possible RX data corruption when control & data EP FIFOs are accessed via the core */
#define ANOMALY_05000467 (1)
/* Interrupted 32-Bit SPORT Data Register Access Results In Underflow */
#define ANOMALY_05000473 (1)
/* Access to DDR-SDRAM causes system hang under certain PLL/VR settings */
#define ANOMALY_05000474 (1)
/* Core Hang With L2/L3 Configured in Writeback Cache Mode */
#define ANOMALY_05000475 (1)
/* TESTSET Instruction Cannot Be Interrupted */
#define ANOMALY_05000477 (1)
/* Anomalies that don't exist on this proc */
#define ANOMALY_05000099 (0)
@ -215,7 +229,6 @@
#define ANOMALY_05000198 (0)
#define ANOMALY_05000202 (0)
#define ANOMALY_05000215 (0)
#define ANOMALY_05000220 (0)
#define ANOMALY_05000227 (0)
#define ANOMALY_05000230 (0)
#define ANOMALY_05000231 (0)

14
arch/blackfin/mach-bf561/atomic.S
View file

@ -19,6 +19,16 @@
\reg\().h = _corelock;
.endm
.macro safe_testset addr:req, scratch:req
#if ANOMALY_05000477
cli \scratch;
testset (\addr);
sti \scratch;
#else
testset (\addr);
#endif
.endm
/*
* r0 = address of atomic data to flush and invalidate (32bit).
*
@ -33,7 +43,7 @@ ENTRY(_get_core_lock)
cli r0;
coreslot_loadaddr p0;
.Lretry_corelock:
testset (p0);
safe_testset p0, r2;
if cc jump .Ldone_corelock;
SSYNC(r2);
jump .Lretry_corelock
@ -56,7 +66,7 @@ ENTRY(_get_core_lock_noflush)
cli r0;
coreslot_loadaddr p0;
.Lretry_corelock_noflush:
testset (p0);
safe_testset p0, r2;
if cc jump .Ldone_corelock_noflush;
SSYNC(r2);
jump .Lretry_corelock_noflush

25
arch/blackfin/mach-bf561/include/mach/anomaly.h
View file

@ -1,9 +1,13 @@
/*
* File: include/asm-blackfin/mach-bf561/anomaly.h
* Bugs: Enter bugs at http://blackfin.uclinux.org/
* DO NOT EDIT THIS FILE
* This file is under version control at
* svn://sources.blackfin.uclinux.org/toolchain/trunk/proc-defs/header-frags/
* and can be replaced with that version at any time
* DO NOT EDIT THIS FILE
*
* Copyright (C) 2004-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
* Copyright 2004-2009 Analog Devices Inc.
* Licensed under the ADI BSD license.
* https://docs.blackfin.uclinux.org/doku.php?id=adi_bsd
*/
/* This file should be up to date with:
@ -213,7 +217,11 @@
/* Disabling Peripherals with DMA Running May Cause DMA System Instability */
#define ANOMALY_05000278 (__SILICON_REVISION__ < 5)
/* False Hardware Error Exception when ISR Context Is Not Restored */
#define ANOMALY_05000281 (__SILICON_REVISION__ < 5)
/* Temporarily walk around for bug 5423 till this issue is confirmed by
* official anomaly document. It looks 05000281 still exists on bf561
* v0.5.
*/
#define ANOMALY_05000281 (__SILICON_REVISION__ <= 5)
/* System MMR Write Is Stalled Indefinitely when Killed in a Particular Stage */
#define ANOMALY_05000283 (1)
/* Reads Will Receive Incorrect Data under Certain Conditions */
@ -280,6 +288,12 @@
#define ANOMALY_05000443 (1)
/* False Hardware Error when RETI Points to Invalid Memory */
#define ANOMALY_05000461 (1)
/* Interrupted 32-Bit SPORT Data Register Access Results In Underflow */
#define ANOMALY_05000473 (1)
/* Core Hang With L2/L3 Configured in Writeback Cache Mode */
#define ANOMALY_05000475 (__SILICON_REVISION__ < 4)
/* TESTSET Instruction Cannot Be Interrupted */
#define ANOMALY_05000477 (1)
/* Anomalies that don't exist on this proc */
#define ANOMALY_05000119 (0)
@ -304,5 +318,6 @@
#define ANOMALY_05000450 (0)
#define ANOMALY_05000465 (0)
#define ANOMALY_05000467 (0)
#define ANOMALY_05000474 (0)
#endif

5
arch/blackfin/mach-common/arch_checks.c
View file

@ -57,3 +57,8 @@
(!defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) && defined(CONFIG_BFIN_L2_WRITEBACK)))
# error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB.
#endif
#if ANOMALY_05000475 && \
(defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK))
# error "Anomaly 475 does not allow you to use Write Back cache with L2 or External Memory"
#endif

6
arch/blackfin/mach-common/smp.c
View file

@ -276,10 +276,9 @@ void smp_send_reschedule(int cpu)
if (cpu_is_offline(cpu))
return;
msg = kmalloc(sizeof(*msg), GFP_ATOMIC);
msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
if (!msg)
return;
memset(msg, 0, sizeof(msg));
INIT_LIST_HEAD(&msg->list);
msg->type = BFIN_IPI_RESCHEDULE;
@ -305,10 +304,9 @@ void smp_send_stop(void)
if (cpus_empty(callmap))
return;
msg = kmalloc(sizeof(*msg), GFP_ATOMIC);
msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
if (!msg)
return;
memset(msg, 0, sizeof(msg));
INIT_LIST_HEAD(&msg->list);
msg->type = BFIN_IPI_CPU_STOP;