[PATCH 2/7] coresight: add ETM management registers
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From: Alexander Shishkin on 25 Jul 2010 13:20 Add notion of ETM OS lock, save and restore registers. Signed-off-by: Alexander Shishkin <virtuoso(a)slind.org> Cc: Russell King <linux(a)arm.linux.org.uk> Cc: linux-arm-kernel(a)lists.infradead.org Cc: linux-kernel(a)vger.kernel.org --- arch/arm/include/asm/hardware/coresight.h | 8 ++++++-- arch/arm/kernel/etm.c | 2 +- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/arm/include/asm/hardware/coresight.h b/arch/arm/include/asm/hardware/coresight.h index 8838be1..d846051 100644 --- a/arch/arm/include/asm/hardware/coresight.h +++ b/arch/arm/include/asm/hardware/coresight.h @@ -36,8 +36,6 @@ /* CoreSight Component Registers */ #define CSCR_CLASS 0xff4 -#define CSCR_PRSR 0x314 - #define UNLOCK_MAGIC 0xc5acce55 /* ETM control register, "ETM Architecture", 3.3.1 */ @@ -120,6 +118,12 @@ ETMCTRL_BRANCH_OUTPUT | \ ETMCTRL_DO_CONTEXTID) +/* ETM management registers, "ETM Architecture", 3.5.24 */ +#define ETMMR_OSLAR 0x300 +#define ETMMR_OSLSR 0x304 +#define ETMMR_OSSRR 0x308 +#define ETMMR_PDSR 0x314 + /* ETB registers, "CoreSight Components TRM", 9.3 */ #define ETBR_DEPTH 0x04 #define ETBR_STATUS 0x0c diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index 47a38af..d08062b 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -558,7 +558,7 @@ static int __init etm_probe(struct amba_device *dev, struct amba_id *id) t->etm_portsz = 1; etm_unlock(t); - ret = etm_readl(t, CSCR_PRSR); + ret = etm_readl(t, ETMMR_PDSR); t->ncmppairs = etm_readl(t, ETMR_CONFCODE) & 0xf; etm_writel(t, 0x440, ETMR_CTRL); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |