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authorJames Hogan <james.hogan@imgtec.com>2015-01-29 11:14:10 +0000
committerRalf Baechle <ralf@linux-mips.org>2015-03-31 12:04:12 +0200
commit602e8a345a916e91256497e13575d0690cd1565f (patch)
tree4bcde796a2ec456771ece363435c3ac76591c53a /arch/mips
parent6429e2b6fc05d8640bb94f5b67c047e936707f31 (diff)
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MIPS: Malta: Implement get_c0_fdc_int()
Implement the weak get_c0_fdc_int() function for Malta. The Fast Debug Channel (FDC) interrupt is obtained mainly depending on whether a GIC is present. Vectored external interrupt mode isn't yet supported. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9143/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/mti-malta/malta-time.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index ce02dbdedc62..7d4b86571564 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -115,6 +115,22 @@ void read_persistent_clock(struct timespec *ts)
ts->tv_nsec = 0;
}
+int get_c0_fdc_int(void)
+{
+ int mips_cpu_fdc_irq;
+
+ if (cpu_has_veic)
+ mips_cpu_fdc_irq = -1;
+ else if (gic_present)
+ mips_cpu_fdc_irq = gic_get_c0_fdc_int();
+ else if (cp0_fdc_irq >= 0)
+ mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
+ else
+ mips_cpu_fdc_irq = -1;
+
+ return mips_cpu_fdc_irq;
+}
+
int get_c0_perfcount_int(void)
{
if (cpu_has_veic) {