From a3d59ae87083e3c890fe8aaba3cbdd0025f31507 Mon Sep 17 00:00:00 2001
From: Doug Berger <opendmb@gmail.com>
Date: Wed, 29 Mar 2017 17:29:12 -0700
Subject: bus: brcmstb_gisb: remove low-level ARM hooks
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>
---
drivers/bus/brcmstb_gisb.c | 30 ------------------------------
1 file changed, 30 deletions(-)
(limited to 'drivers/bus')
diff --git a/drivers/bus/brcmstb_gisb.c b/drivers/bus/brcmstb_gisb.c
index a2e1c5c25a3a..3fbc116e6b95 100644
--- a/drivers/bus/brcmstb_gisb.c
+++ b/drivers/bus/brcmstb_gisb.c
@@ -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
--
cgit v1.2.3