Commit 796d1295 authored by Jean PIHET's avatar Jean PIHET Committed by Russell King

ARM: 5903/1: arm/perfevents: add support for ARMv7

Adds the Performance Events support for ARMv7 processor, using
the PMNC unit in HW.

Supports the following:
- Cortex-A8 and Cortex-A9 processors,
- dynamic detection of the number of available counters,
   based on the PMCR value,
- runtime detection of the CPU arch (v6 or v7)
   and model (Cortex-A8 or Cortex-A9)

Tested on OMAP3 (Cortex-A8) only.
Signed-off-by: default avatarJean Pihet <jpihet@mvista.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 1b8873a0
......@@ -1176,7 +1176,7 @@ config HIGHPTE
config HW_PERF_EVENTS
bool "Enable hardware performance counter support for perf events"
depends on PERF_EVENTS && CPU_HAS_PMU && CPU_V6
depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
default y
help
Enable hardware performance counter support for perf events. If
......
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