summaryrefslogtreecommitdiffstats
path: root/arch/arc/kernel
diff options
context:
space:
mode:
authorEugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>2020-03-05 23:02:52 +0300
committerVineet Gupta <vgupta@synopsys.com>2020-03-16 10:30:49 -0700
commitf09d3174f002ee2cf15623d5a0f68f7393536ce7 (patch)
tree26089da5142b45f5498d71dce04e1f0be210f296 /arch/arc/kernel
parent7321e2ea0d6aece516a9c0827028ecda2ccaeae9 (diff)
downloadlinux-f09d3174f002ee2cf15623d5a0f68f7393536ce7.tar.bz2
ARC: allow userspace DSP applications to use AGU extensions
To be able to run DSP-enabled userspace applications with AGU (address generation unit) extensions we additionally need to save and restore following registers at context switch: * AGU_AP* * AGU_OS* * AGU_MOD* Reviewed-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel')
-rw-r--r--arch/arc/kernel/setup.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 1ed1528d9045..b2b1cb645d9e 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -399,6 +399,12 @@ void chk_opt_strict(char *opt_name, bool hw_exists, bool opt_ena)
panic("Disable %s, hardware NOT present\n", opt_name);
}
+void chk_opt_weak(char *opt_name, bool hw_exists, bool opt_ena)
+{
+ if (!hw_exists && opt_ena)
+ panic("Disable %s, hardware NOT present\n", opt_name);
+}
+
static void arc_chk_core_config(void)
{
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];