Thread (31 messages) 31 messages, 2 authors, 2019-01-15

[PATCH v4 22/24] clock: csrc-4k: Add support for vdso_direct

STALE2816d

From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: 2019-01-15 14:02:14
Also in: linux-arch
Subsystem: mips, the rest · Maintainers: Thomas Bogendoerfer, Linus Torvalds

Revision v4 of 6 in this series.

Revisions (6)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 current
  5. v5 [diff vs current]
  6. v7 [diff vs current]
This patch is a consequence of the introduction of vdso_direct on mips
architectures.

If the clock source is selected, vdso_direct is set to true.

Cc: Ralf Baechle <redacted>
Cc: Paul Burton <redacted>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
 arch/mips/kernel/csrc-r4k.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
index eed099f35bf1..97e2a8aafdd6 100644
--- a/arch/mips/kernel/csrc-r4k.c
+++ b/arch/mips/kernel/csrc-r4k.c
@@ -77,8 +77,10 @@ int __init init_r4k_clocksource(void)
 	 * R2 onwards makes the count accessible to user mode so it can be used
 	 * by the VDSO (HWREna is configured by configure_hwrena()).
 	 */
-	if (cpu_has_mips_r2_r6 && rdhwr_count_usable())
+	if (cpu_has_mips_r2_r6 && rdhwr_count_usable()) {
+		clocksource_mips.archdata.vdso_direct = true;
 		clocksource_mips.archdata.vdso_clock_mode = VDSO_CLOCK_R4K;
+	}
 
 	clocksource_register_hz(&clocksource_mips, mips_hpt_frequency);
 
-- 
2.20.1


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