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bus: brcmstb_gisb: remove low-level ARM hooks

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The ARM architecture can provide meaningful diagnostic
output from the GISB arbiter solely from interrupts and
notifiers without the need to hook the low level fault
handlers.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Doug Berger 2017-03-29 17:29:12 -07:00 committed by Florian Fainelli
parent 9eb60880d9
commit a3d59ae870
1 changed files with 0 additions and 30 deletions
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30
drivers/bus/brcmstb_gisb.c
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@ -28,11 +28,6 @@
#include <linux/kdebug.h>
#include <linux/notifier.h>
#ifdef CONFIG_ARM
#include <asm/bug.h>
#include <asm/signal.h>
#endif
#ifdef CONFIG_MIPS
#include <asm/traps.h>
#endif
@ -228,27 +223,6 @@ static int brcmstb_gisb_arb_decode_addr(struct brcmstb_gisb_arb_device *gdev,
return 0;
}
#ifdef CONFIG_ARM
static int brcmstb_bus_error_handler(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
{
int ret = 0;
struct brcmstb_gisb_arb_device *gdev;
/* iterate over each GISB arb registered handlers */
list_for_each_entry(gdev, &brcmstb_gisb_arb_device_list, next)
ret |= brcmstb_gisb_arb_decode_addr(gdev, "bus error");
/*
* If it was an imprecise abort, then we need to correct the
* return address to be _after_ the instruction.
*/
if (fsr & (1 << 10))
regs->ARM_pc += 4;
return ret;
}
#endif
#ifdef CONFIG_MIPS
static int brcmstb_bus_error_handler(struct pt_regs *regs, int is_fixup)
{
@ -415,10 +389,6 @@ static int __init brcmstb_gisb_arb_probe(struct platform_device *pdev)
list_add_tail(&gdev->next, &brcmstb_gisb_arb_device_list);
#ifdef CONFIG_ARM
hook_fault_code(22, brcmstb_bus_error_handler, SIGBUS, 0,
"imprecise external abort");
#endif
#ifdef CONFIG_MIPS
board_be_handler = brcmstb_bus_error_handler;
#endif