From patchwork Mon Jul 28 21:15:53 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felipe Balbi X-Patchwork-Id: 4636761 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 199219F38C for ; Mon, 28 Jul 2014 21:19:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1EDC3201B9 for ; Mon, 28 Jul 2014 21:19:44 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1D88B2018E for ; Mon, 28 Jul 2014 21:19:43 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XBsIx-0003nF-4J; Mon, 28 Jul 2014 21:17:59 +0000 Received: from devils.ext.ti.com ([198.47.26.153]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XBsIS-0003BS-7u for linux-arm-kernel@lists.infradead.org; Mon, 28 Jul 2014 21:17:29 +0000 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id s6SLGplx018888; Mon, 28 Jul 2014 16:16:51 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id s6SLGp9d014510; Mon, 28 Jul 2014 16:16:51 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.174.1; Mon, 28 Jul 2014 16:16:50 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id s6SLGoCP012201; Mon, 28 Jul 2014 16:16:50 -0500 From: Felipe Balbi To: Tony Lindgren Subject: [PATCH 05/35] arm: omap: irq: remove rest of irq_banks usage Date: Mon, 28 Jul 2014 16:15:53 -0500 Message-ID: <1406582183-696-6-git-send-email-balbi@ti.com> X-Mailer: git-send-email 2.0.1.563.g66f467c In-Reply-To: <1406582183-696-1-git-send-email-balbi@ti.com> References: <1406582183-696-1-git-send-email-balbi@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140728_141728_438292_B70E28F3 X-CRM114-Status: GOOD ( 17.06 ) X-Spam-Score: -5.7 (-----) Cc: devicetree@vger.kernel.org, linux@arm.linux.org.uk, jason@lakedaemon.net, khilman@deeprootsystems.com, Linux Kernel Mailing List , Felipe Balbi , bcousson@baylibre.com, tglx@linutronix.de, Linux OMAP Mailing List , Linux ARM Kernel Mailing List X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP now we can finally remove the pointless irq_banks array. Signed-off-by: Felipe Balbi --- arch/arm/mach-omap2/irq.c | 128 +++++++++++++++++----------------------------- 1 file changed, 47 insertions(+), 81 deletions(-) diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c index 3870853..8c85c39 100644 --- a/arch/arm/mach-omap2/irq.c +++ b/arch/arm/mach-omap2/irq.c @@ -49,8 +49,8 @@ #define OMAP3_IRQ_BASE OMAP2_L4_IO_ADDRESS(OMAP34XX_IC_BASE) #define INTCPS_SIR_IRQ_OFFSET 0x0040 /* omap2/3 active interrupt offset */ #define ACTIVEIRQ_MASK 0x7f /* omap2/3 active interrupt bits */ +#define INTCPS_NR_ILR_REGS 128 #define INTCPS_NR_MIR_REGS 3 -#define INTCPS_NR_IRQS 96 /* * OMAP2 has a number of different interrupt controllers, each interrupt @@ -58,15 +58,6 @@ * fairly consistent for each bank, but not all registers are implemented * for each bank.. when in doubt, consult the TRM. */ -static struct omap_irq_bank { - void __iomem *base_reg; - unsigned int nr_irqs; -} __attribute__ ((aligned(4))) irq_banks[] = { - { - /* MPU INTC */ - .nr_irqs = 96, - }, -}; static struct irq_domain *domain; static void __iomem *omap_irq_base; @@ -78,7 +69,7 @@ struct omap3_intc_regs { u32 protection; u32 idle; u32 threshold; - u32 ilr[INTCPS_NR_IRQS]; + u32 ilr[INTCPS_NR_ILR_REGS]; u32 mir[INTCPS_NR_MIR_REGS]; }; @@ -105,13 +96,14 @@ static void omap_mask_ack_irq(struct irq_data *d) omap_ack_irq(d); } -static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank) +static void __init omap_irq_soft_reset(void) { unsigned long tmp; tmp = intc_readl(INTC_REVISION) & 0xff; + pr_info("IRQ: Found an INTC at 0x%p (revision %ld.%ld) with %d interrupts\n", - bank->base_reg, tmp >> 4, tmp & 0xf, bank->nr_irqs); + omap_irq_base, tmp >> 4, tmp & 0xf, omap_nr_irqs); tmp = intc_readl(INTC_SYSCONFIG); tmp |= 1 << 1; /* soft reset */ @@ -126,17 +118,12 @@ static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank) int omap_irq_pending(void) { - int i; + int irq; - for (i = 0; i < ARRAY_SIZE(irq_banks); i++) { - struct omap_irq_bank *bank = irq_banks + i; - int irq; - - for (irq = 0; irq < bank->nr_irqs; irq += 32) - if (intc_readl(INTC_PENDING_IRQ0 + - ((irq >> 5) << 5))) - return 1; - } + for (irq = 0; irq < omap_nr_irqs; irq += 32) + if (intc_readl(INTC_PENDING_IRQ0 + + ((irq >> 5) << 5))) + return 1; return 0; } @@ -163,9 +150,7 @@ omap_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num) static void __init omap_init_irq(u32 base, int nr_irqs, struct device_node *node) { - unsigned long nr_of_irqs = 0; - unsigned int nr_banks = 0; - int i, j, irq_base; + int j, irq_base; omap_irq_base = ioremap(base, SZ_4K); if (WARN_ON(!omap_irq_base)) @@ -180,31 +165,12 @@ static void __init omap_init_irq(u32 base, int nr_irqs, } domain = irq_domain_add_legacy(node, nr_irqs, irq_base, 0, - &irq_domain_simple_ops, NULL); - - for (i = 0; i < ARRAY_SIZE(irq_banks); i++) { - struct omap_irq_bank *bank = irq_banks + i; - - bank->nr_irqs = nr_irqs; - - /* Static mapping, never released */ - bank->base_reg = ioremap(base, SZ_4K); - if (!bank->base_reg) { - pr_err("Could not ioremap irq bank%i\n", i); - continue; - } - - omap_irq_bank_init_one(bank); + &irq_domain_simple_ops, NULL); - for (j = 0; j < bank->nr_irqs; j += 32) - omap_alloc_gc(bank->base_reg + j, j + irq_base, 32); + omap_irq_soft_reset(); - nr_of_irqs += bank->nr_irqs; - nr_banks++; - } - - pr_info("Total of %ld interrupts on %d active controller%s\n", - nr_of_irqs, nr_banks, nr_banks > 1 ? "s" : ""); + for (j = 0; j < omap_nr_irqs; j += 32) + omap_alloc_gc(omap_irq_base + j, j + irq_base, 32); } void __init omap2_init_irq(void) @@ -303,45 +269,45 @@ void __init omap_intc_of_init(void) } #if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM33XX) -static struct omap3_intc_regs intc_context[ARRAY_SIZE(irq_banks)]; +static struct omap3_intc_regs intc_context; void omap_intc_save_context(void) { - int ind = 0, i = 0; - for (ind = 0; ind < ARRAY_SIZE(irq_banks); ind++) { - intc_context[ind].sysconfig = - intc_readl(INTC_SYSCONFIG); - intc_context[ind].protection = - intc_readl(INTC_PROTECTION); - intc_context[ind].idle = - intc_readl(INTC_IDLE); - intc_context[ind].threshold = - intc_readl(INTC_THRESHOLD); - for (i = 0; i < INTCPS_NR_IRQS; i++) - intc_context[ind].ilr[i] = - intc_readl((INTC_ILR0 + 0x4 * i)); - for (i = 0; i < INTCPS_NR_MIR_REGS; i++) - intc_context[ind].mir[i] = - intc_readl(INTC_MIR0 + (0x20 * i)); - } + int i; + + intc_context.sysconfig = + intc_readl(INTC_SYSCONFIG); + intc_context.protection = + intc_readl(INTC_PROTECTION); + intc_context.idle = + intc_readl(INTC_IDLE); + intc_context.threshold = + intc_readl(INTC_THRESHOLD); + + for (i = 0; i < omap_nr_irqs; i++) + intc_context.ilr[i] = + intc_readl((INTC_ILR0 + 0x4 * i)); + for (i = 0; i < INTCPS_NR_MIR_REGS; i++) + intc_context.mir[i] = + intc_readl(INTC_MIR0 + (0x20 * i)); } void omap_intc_restore_context(void) { - int ind = 0, i = 0; - - for (ind = 0; ind < ARRAY_SIZE(irq_banks); ind++) { - intc_writel(INTC_SYSCONFIG, intc_context[ind].sysconfig); - intc_writel(INTC_PROTECTION, intc_context[ind].protection); - intc_writel(INTC_IDLE, intc_context[ind].idle); - intc_writel(INTC_THRESHOLD, intc_context[ind].threshold); - for (i = 0; i < INTCPS_NR_IRQS; i++) - intc_writel(INTC_ILR0 + 0x4 * i, - intc_context[ind].ilr[i]); - for (i = 0; i < INTCPS_NR_MIR_REGS; i++) - intc_writel(INTC_MIR0 + 0x20 * i, - intc_context[ind].mir[i]); - } + int i; + + intc_writel(INTC_SYSCONFIG, intc_context.sysconfig); + intc_writel(INTC_PROTECTION, intc_context.protection); + intc_writel(INTC_IDLE, intc_context.idle); + intc_writel(INTC_THRESHOLD, intc_context.threshold); + + for (i = 0; i < omap_nr_irqs; i++) + intc_writel(INTC_ILR0 + 0x4 * i, + intc_context.ilr[i]); + + for (i = 0; i < INTCPS_NR_MIR_REGS; i++) + intc_writel(INTC_MIR0 + 0x20 * i, + intc_context.mir[i]); /* MIRs are saved and restore with other PRCM registers */ }