> -----Original Message----- > From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap- > owner@xxxxxxxxxxxxxxx] On Behalf Of tom.leiming@xxxxxxxxx > Sent: Tuesday, March 01, 2011 6:47 PM > To: linux@xxxxxxxxxxxxxxxx > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; Ming Lei; Woodruff > Richard; Tony Lindgren; linux-omap@xxxxxxxxxxxxxxx > Subject: [PATCH 3/3] arm: omap4: support pmu > > From: Ming Lei <tom.leiming@xxxxxxxxx> > > This patch supports pmu irq routed from CTI, so > make pmu/perf working on OMAP4. > > The idea is from Woodruff Richard in the disscussion > "Oprofile on Pandaboard / Omap4" of pandaboard@xxxxxxxxxxxxxxxxx > > Cc: Woodruff Richard <r-woodruff2@xxxxxx> > Cc: Tony Lindgren <tony@xxxxxxxxxxx> > Cc: linux-omap@xxxxxxxxxxxxxxx > Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx> > --- Thanks Mein Lei for this. > arch/arm/mach-omap2/devices.c | 54 > ++++++++++++++++++++++++++++++++++++++++- > 1 files changed, 53 insertions(+), 1 deletions(-) > > diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach- > omap2/devices.c > index 71f099b..54e9705 100644 > --- a/arch/arm/mach-omap2/devices.c > +++ b/arch/arm/mach-omap2/devices.c > @@ -34,6 +34,7 @@ > > #include "mux.h" > #include "control.h" > +#include "dbg44xx.h" > > #if defined(CONFIG_VIDEO_OMAP2) || > defined(CONFIG_VIDEO_OMAP2_MODULE) > > @@ -347,19 +348,70 @@ static struct resource omap3_pmu_resource = { > .flags = IORESOURCE_IRQ, > }; > > +static struct resource omap4_pmu_resource[] = { > + { > + .start = OMAP44XX_IRQ_CTI0, > + .end = OMAP44XX_IRQ_CTI0, > + .flags = IORESOURCE_IRQ, > + }, > + { > + .start = OMAP44XX_IRQ_CTI1, > + .end = OMAP44XX_IRQ_CTI1, > + .flags = IORESOURCE_IRQ, > + } > +}; > + > static struct platform_device omap_pmu_device = { > .name = "arm-pmu", > .id = ARM_PMU_DEVICE_CPU, > .num_resources = 1, > }; > > +struct pmu_platform_data omap4_pmu_data; > + > +static void omap4_configure_pmu_irq(void) > +{ > + void *base0; > + void *base1; > + > + base0 = ioremap(OMAP4430_CTI0_BASE, 4096); > + base1 = ioremap(OMAP4430_CTI1_BASE, 4096); > + if (!base0 && !base1) { > + pr_err("ioremap for omap4 CTI failed\n"); > + return; > + } > + > + /*configure CTI0 for pmu irq routing*/ > + cti_init(&omap4_pmu_data.cti[0], base0, > + OMAP44XX_IRQ_CTI0, 6); > + cti_unlock(&omap4_pmu_data.cti[0]); > + cti_map_trigger(&omap4_pmu_data.cti[0], > + 1, 6, 2); > + > + /*configure CTI1 for pmu irq routing*/ > + cti_init(&omap4_pmu_data.cti[1], base1, > + OMAP44XX_IRQ_CTI1, 6); > + cti_unlock(&omap4_pmu_data.cti[1]); > + cti_map_trigger(&omap4_pmu_data.cti[1], > + 1, 6, 3); > + > + omap4_pmu_data.cti_cnt = 2; > + omap4_pmu_data.use_cti_irq = 1; > +} > + > static void omap_init_pmu(void) > { > if (cpu_is_omap24xx()) > omap_pmu_device.resource = &omap2_pmu_resource; > else if (cpu_is_omap34xx()) > omap_pmu_device.resource = &omap3_pmu_resource; > - else > + else if (cpu_is_omap44xx()) { > + omap_pmu_device.resource = omap4_pmu_resource; > + omap_pmu_device.num_resources = 2; > + omap_pmu_device.dev.platform_data = &omap4_pmu_data; > + > + omap4_configure_pmu_irq(); > + } else > return; > > platform_device_register(&omap_pmu_device); > -- > 1.7.3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux- > omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
