diff options
| author | jogo <jogo@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-05-02 15:28:26 +0000 |
|---|---|---|
| committer | jogo <jogo@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-05-02 15:28:26 +0000 |
| commit | aef5072cbec76a1376b7e6eba2c060c5e6af95d1 (patch) | |
| tree | e0694ee3b93eb20c14b1cd4fc5840f40fce51ca7 | |
| parent | 98bc05922b9cade4b86f2882a781ea3885f559f8 (diff) | |
bcm63xx: add SMP support for BCM6362 and BCM6368
BCM6358 requires further work due to its shared TLB.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36526 3c298f89-4303-0410-b956-a3cf2f4a3e73
13 files changed, 1275 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.8/310-BCM63XX-Add-SMP-support-to-prom.c.patch b/target/linux/brcm63xx/patches-3.8/310-BCM63XX-Add-SMP-support-to-prom.c.patch new file mode 100644 index 000000000..7c9baf7e4 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/310-BCM63XX-Add-SMP-support-to-prom.c.patch @@ -0,0 +1,71 @@ +From 10ea7fd6b854c3ecf745d053beba10c7e00c33c9 Mon Sep 17 00:00:00 2001 +From: Kevin Cernekee <cernekee@gmail.com> +Date: Sat, 9 Jul 2011 12:15:06 -0700 +Subject: [PATCH 01/13] MIPS: BCM63XX: Add SMP support to prom.c + +This involves two changes to the BSP code: + +1) register_smp_ops() for BMIPS SMP + +2) The CPU1 boot vector on some of the BCM63xx platforms conflicts with +the special interrupt vector (IV). Move it to 0x8000_0380 at boot time, +to resolve the conflict. + +Signed-off-by: Kevin Cernekee <cernekee@gmail.com> +[jogo@openwrt: move smp ops registration below #ifdef guard, don't enable + smp for 6328/6358] +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/prom.c | 33 +++++++++++++++++++++++++++++++++ + 1 file changed, 33 insertions(+) + +--- a/arch/mips/bcm63xx/prom.c ++++ b/arch/mips/bcm63xx/prom.c +@@ -8,7 +8,11 @@ + + #include <linux/init.h> + #include <linux/bootmem.h> ++#include <linux/smp.h> + #include <asm/bootinfo.h> ++#include <asm/bmips.h> ++#include <asm/smp-ops.h> ++#include <asm/mipsregs.h> + #include <bcm63xx_board.h> + #include <bcm63xx_cpu.h> + #include <bcm63xx_io.h> +@@ -52,6 +56,35 @@ void __init prom_init(void) + + /* do low level board init */ + board_prom_init(); ++ ++#if defined(CONFIG_CPU_BMIPS4350) && defined(CONFIG_SMP) ++ /* set up SMP */ ++ register_smp_ops(&bmips_smp_ops); ++ ++ /* ++ * BCM6328 does not have its second CPU enabled, while BCM6358 ++ * needs special handling for its shared TLB, so disable SMP for now. ++ */ ++ if (BCMCPU_IS_6328() || BCMCPU_IS_6358()) { ++ bmips_smp_enabled = 0; ++ return; ++ } ++ ++ /* ++ * The bootloader has set up the CPU1 reset vector at 0xa000_0200. ++ * This conflicts with the special interrupt vector (IV). ++ * The bootloader has also set up CPU1 to respond to the wrong ++ * IPI interrupt. ++ * Here we will start up CPU1 in the background and ask it to ++ * reconfigure itself then go back to sleep. ++ */ ++ memcpy((void *)0xa0000200, &bmips_smp_movevec, 0x20); ++ __sync(); ++ set_c0_cause(C_SW0); ++ cpumask_set_cpu(1, &bmips_booted_mask); ++ ++ /* FIXME: we really should have some sort of hazard barrier here */ ++#endif + } + + void __init prom_free_prom_memory(void) diff --git a/target/linux/brcm63xx/patches-3.8/311-MIPS-BCM63XX-Handle-SW-IRQs-0-1.patch b/target/linux/brcm63xx/patches-3.8/311-MIPS-BCM63XX-Handle-SW-IRQs-0-1.patch new file mode 100644 index 000000000..f08c7ef4f --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/311-MIPS-BCM63XX-Handle-SW-IRQs-0-1.patch @@ -0,0 +1,28 @@ +From 8e0bd819cc0f8815cad99feea98664172c0b1fe4 Mon Sep 17 00:00:00 2001 +From: Kevin Cernekee <cernekee@gmail.com> +Date: Mon, 31 Oct 2011 11:52:10 -0700 +Subject: [PATCH 02/13] MIPS: BCM63XX: Handle SW IRQs 0-1 + +MIPS software IRQs 0 and 1 are used for interprocessor signaling (IPI) +on BMIPS SMP. Make the board support code aware of them. + +Signed-off-by: Kevin Cernekee <cernekee@gmail.com> +[jogo@openwrt.org: move sw irqs behind timer irq] +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -294,6 +294,10 @@ asmlinkage void plat_irq_dispatch(void) + + if (cause & CAUSEF_IP7) + do_IRQ(7); ++ if (cause & CAUSEF_IP0) ++ do_IRQ(0); ++ if (cause & CAUSEF_IP1) ++ do_IRQ(1); + if (cause & CAUSEF_IP2) + dispatch_internal(); + if (!is_ext_irq_cascaded) { diff --git a/target/linux/brcm63xx/patches-3.8/312-MIPS-BCM63XX-select-SYS_HAS_CPU_BMIPS4350-for-suppor.patch b/target/linux/brcm63xx/patches-3.8/312-MIPS-BCM63XX-select-SYS_HAS_CPU_BMIPS4350-for-suppor.patch new file mode 100644 index 000000000..ce0e76941 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/312-MIPS-BCM63XX-select-SYS_HAS_CPU_BMIPS4350-for-suppor.patch @@ -0,0 +1,24 @@ +From 1923ce1435a5e89f9550e8c95db37a3ef1f92665 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Sun, 21 Apr 2013 14:44:00 +0200 +Subject: [PATCH 03/13] MIPS: BCM63XX: select SYS_HAS_CPU_BMIPS4350 for + supported SoCs + +BCM6338, BCM6345 and BCM6348 have a BMIPS3300, everything following +has a BMIPS4350. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/Kconfig | 1 + + 1 file changed, 1 insertion(+) + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -126,6 +126,7 @@ config BCM63XX + select DMA_NONCOHERENT + select IRQ_CPU + select SYS_HAS_CPU_MIPS32_R1 ++ select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348 + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_BIG_ENDIAN + select SYS_HAS_EARLY_PRINTK diff --git a/target/linux/brcm63xx/patches-3.8/313-MIPS-BCM63XX-rename-__dispatch_internal-to-__dispatc.patch b/target/linux/brcm63xx/patches-3.8/313-MIPS-BCM63XX-rename-__dispatch_internal-to-__dispatc.patch new file mode 100644 index 000000000..f5b607131 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/313-MIPS-BCM63XX-rename-__dispatch_internal-to-__dispatc.patch @@ -0,0 +1,51 @@ +From bb2774da9598f3ea38099d3dcf753b585824a011 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Thu, 21 Mar 2013 17:05:15 +0100 +Subject: [PATCH 04/13] MIPS: BCM63XX: rename __dispatch_internal to + __dispatch_internal_32 + +Make it follow the same naming convention as the other functions. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -19,7 +19,7 @@ + #include <bcm63xx_io.h> + #include <bcm63xx_irq.h> + +-static void __dispatch_internal(void) __maybe_unused; ++static void __dispatch_internal_32(void) __maybe_unused; + static void __dispatch_internal_64(void) __maybe_unused; + static void __internal_irq_mask_32(unsigned int irq) __maybe_unused; + static void __internal_irq_mask_64(unsigned int irq) __maybe_unused; +@@ -106,7 +106,7 @@ static void __internal_irq_unmask_64(uns + #endif + + #if irq_bits == 32 +-#define dispatch_internal __dispatch_internal ++#define dispatch_internal __dispatch_internal_32 + #define internal_irq_mask __internal_irq_mask_32 + #define internal_irq_unmask __internal_irq_unmask_32 + #else +@@ -207,7 +207,7 @@ static void bcm63xx_init_irq(void) + } + + if (irq_bits == 32) { +- dispatch_internal = __dispatch_internal; ++ dispatch_internal = __dispatch_internal_32; + internal_irq_mask = __internal_irq_mask_32; + internal_irq_unmask = __internal_irq_unmask_32; + } else { +@@ -240,7 +240,7 @@ static inline void handle_internal(int i + * will resume the loop where it ended the last time we left this + * function. + */ +-static void __dispatch_internal(void) ++static void __dispatch_internal_32(void) + { + u32 pending; + static int i; diff --git a/target/linux/brcm63xx/patches-3.8/314-MIPS-BCM63XX-replace-irq-dispatch-code-with-a-generi.patch b/target/linux/brcm63xx/patches-3.8/314-MIPS-BCM63XX-replace-irq-dispatch-code-with-a-generi.patch new file mode 100644 index 000000000..5fabd0861 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/314-MIPS-BCM63XX-replace-irq-dispatch-code-with-a-generi.patch @@ -0,0 +1,167 @@ +From 661e02b8e2b9a4b48a809bc82dfe8f7b20ca750f Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Thu, 18 Apr 2013 21:14:49 +0200 +Subject: [PATCH 05/13] MIPS: BCM63XX: replace irq dispatch code with a + generic version + +The generic version uses a variable length of u32 registers of u32/u64. +This allows easier support for longer registers without having to rewrite +verything. + +This "generic" version is not slower than the old version in the best case +(= i == next set bit), and twice as fast in the worst case in 64 bits. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 130 ++++++++++++++++++++--------------------------- + 1 file changed, 56 insertions(+), 74 deletions(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -240,47 +240,65 @@ static inline void handle_internal(int i + * will resume the loop where it ended the last time we left this + * function. + */ +-static void __dispatch_internal_32(void) +-{ +- u32 pending; +- static int i; +- +- pending = bcm_readl(irq_stat_addr) & bcm_readl(irq_mask_addr); +- +- if (!pending) +- return ; +- +- while (1) { +- int to_call = i; + +- i = (i + 1) & 0x1f; +- if (pending & (1 << to_call)) { +- handle_internal(to_call); +- break; +- } +- } ++#define BUILD_IPIC_INTERNAL(width) \ ++void __dispatch_internal_##width(void) \ ++{ \ ++ u32 pending[width / 32]; \ ++ unsigned int src, tgt; \ ++ bool irqs_pending = false; \ ++ static int i; \ ++ \ ++ /* read registers in reverse order */ \ ++ for (src = 0, tgt = (width / 32); src < (width / 32); src++) { \ ++ u32 val; \ ++ \ ++ val = bcm_readl(irq_stat_addr + src * sizeof(u32)); \ ++ val &= bcm_readl(irq_mask_addr + src * sizeof(u32)); \ ++ pending[--tgt] = val; \ ++ \ ++ if (val) \ ++ irqs_pending = true; \ ++ } \ ++ \ ++ if (!irqs_pending) \ ++ return; \ ++ \ ++ while (1) { \ ++ int to_call = i; \ ++ \ ++ i = (i + 1) & (width - 1); \ ++ if (pending[to_call / 32] & (1 << (to_call & 0x1f))) { \ ++ handle_internal(to_call); \ ++ break; \ ++ } \ ++ } \ ++} \ ++ \ ++static void __internal_irq_mask_##width(unsigned int irq) \ ++{ \ ++ u32 val; \ ++ unsigned reg = (irq / 32) ^ (width/32 - 1); \ ++ unsigned bit = irq & 0x1f; \ ++ \ ++ val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ ++ val &= ~(1 << bit); \ ++ bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ ++} \ ++ \ ++static void __internal_irq_unmask_##width(unsigned int irq) \ ++{ \ ++ u32 val; \ ++ unsigned reg = (irq / 32) ^ (width/32 - 1); \ ++ unsigned bit = irq & 0x1f; \ ++ \ ++ val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ ++ val |= (1 << bit); \ ++ bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ + } + +-static void __dispatch_internal_64(void) +-{ +- u64 pending; +- static int i; +- +- pending = bcm_readq(irq_stat_addr) & bcm_readq(irq_mask_addr); +- +- if (!pending) +- return ; +- +- while (1) { +- int to_call = i; +- +- i = (i + 1) & 0x3f; +- if (pending & (1ull << to_call)) { +- handle_internal(to_call); +- break; +- } +- } +-} ++BUILD_IPIC_INTERNAL(32); ++BUILD_IPIC_INTERNAL(64); + + asmlinkage void plat_irq_dispatch(void) + { +@@ -317,42 +335,6 @@ asmlinkage void plat_irq_dispatch(void) + * internal IRQs operations: only mask/unmask on PERF irq mask + * register. + */ +-static void __internal_irq_mask_32(unsigned int irq) +-{ +- u32 mask; +- +- mask = bcm_readl(irq_mask_addr); +- mask &= ~(1 << irq); +- bcm_writel(mask, irq_mask_addr); +-} +- +-static void __internal_irq_mask_64(unsigned int irq) +-{ +- u64 mask; +- +- mask = bcm_readq(irq_mask_addr); +- mask &= ~(1ull << irq); +- bcm_writeq(mask, irq_mask_addr); +-} +- +-static void __internal_irq_unmask_32(unsigned int irq) +-{ +- u32 mask; +- +- mask = bcm_readl(irq_mask_addr); +- mask |= (1 << irq); +- bcm_writel(mask, irq_mask_addr); +-} +- +-static void __internal_irq_unmask_64(unsigned int irq) +-{ +- u64 mask; +- +- mask = bcm_readq(irq_mask_addr); +- mask |= (1ull << irq); +- bcm_writeq(mask, irq_mask_addr); +-} +- + static void bcm63xx_internal_irq_mask(struct irq_data *d) + { + internal_irq_mask(d->irq - IRQ_INTERNAL_BASE); diff --git a/target/linux/brcm63xx/patches-3.8/315-MIPS-BCM63XX-append-cpu-number-to-irq_-stat-mask.patch b/target/linux/brcm63xx/patches-3.8/315-MIPS-BCM63XX-append-cpu-number-to-irq_-stat-mask.patch new file mode 100644 index 000000000..98cd637a8 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/315-MIPS-BCM63XX-append-cpu-number-to-irq_-stat-mask.patch @@ -0,0 +1,258 @@ +From 6ec70ebfccd31ae3668d99b5703e5c9ce38384b4 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Thu, 25 Apr 2013 00:24:06 +0200 +Subject: [PATCH 06/13] MIPS: BCM63XX: append cpu number to irq_{stat,mask}* + +For SMP affinity support we need to discrimnate between the registers +for both CPUs. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 78 ++++++++++----------- + arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 16 ++--- + 2 files changed, 47 insertions(+), 47 deletions(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -28,8 +28,8 @@ static void __internal_irq_unmask_64(uns + + #ifndef BCMCPU_RUNTIME_DETECT + #ifdef CONFIG_BCM63XX_CPU_6328 +-#define irq_stat_reg PERF_IRQSTAT_6328_REG +-#define irq_mask_reg PERF_IRQMASK_6328_REG ++#define irq_stat_reg0 PERF_IRQSTAT_6328_REG(0) ++#define irq_mask_reg0 PERF_IRQMASK_6328_REG(0) + #define irq_bits 64 + #define is_ext_irq_cascaded 1 + #define ext_irq_start (BCM_6328_EXT_IRQ0 - IRQ_INTERNAL_BASE) +@@ -39,8 +39,8 @@ static void __internal_irq_unmask_64(uns + #define ext_irq_cfg_reg2 0 + #endif + #ifdef CONFIG_BCM63XX_CPU_6338 +-#define irq_stat_reg PERF_IRQSTAT_6338_REG +-#define irq_mask_reg PERF_IRQMASK_6338_REG ++#define irq_stat_reg0 PERF_IRQSTAT_6338_REG ++#define irq_mask_reg0 PERF_IRQMASK_6338_REG + #define irq_bits 32 + #define is_ext_irq_cascaded 0 + #define ext_irq_start 0 +@@ -50,8 +50,8 @@ static void __internal_irq_unmask_64(uns + #define ext_irq_cfg_reg2 0 + #endif + #ifdef CONFIG_BCM63XX_CPU_6345 +-#define irq_stat_reg PERF_IRQSTAT_6345_REG +-#define irq_mask_reg PERF_IRQMASK_6345_REG ++#define irq_stat_reg0 PERF_IRQSTAT_6345_REG ++#define irq_mask_reg0 PERF_IRQMASK_6345_REG + #define irq_bits 32 + #define is_ext_irq_cascaded 0 + #define ext_irq_start 0 +@@ -61,8 +61,8 @@ static void __internal_irq_unmask_64(uns + #define ext_irq_cfg_reg2 0 + #endif + #ifdef CONFIG_BCM63XX_CPU_6348 +-#define irq_stat_reg PERF_IRQSTAT_6348_REG +-#define irq_mask_reg PERF_IRQMASK_6348_REG ++#define irq_stat_reg0 PERF_IRQSTAT_6348_REG ++#define irq_mask_reg0 PERF_IRQMASK_6348_REG + #define irq_bits 32 + #define is_ext_irq_cascaded 0 + #define ext_irq_start 0 +@@ -72,8 +72,8 @@ static void __internal_irq_unmask_64(uns + #define ext_irq_cfg_reg2 0 + #endif + #ifdef CONFIG_BCM63XX_CPU_6358 +-#define irq_stat_reg PERF_IRQSTAT_6358_REG +-#define irq_mask_reg PERF_IRQMASK_6358_REG ++#define irq_stat_reg0 PERF_IRQSTAT_6358_REG(0) ++#define irq_mask_reg0 PERF_IRQMASK_6358_REG(0) + #define irq_bits 32 + #define is_ext_irq_cascaded 1 + #define ext_irq_start (BCM_6358_EXT_IRQ0 - IRQ_INTERNAL_BASE) +@@ -83,8 +83,8 @@ static void __internal_irq_unmask_64(uns + #define ext_irq_cfg_reg2 0 + #endif + #ifdef CONFIG_BCM63XX_CPU_6362 +-#define irq_stat_reg PERF_IRQSTAT_6362_REG +-#define irq_mask_reg PERF_IRQMASK_6362_REG ++#define irq_stat_reg0 PERF_IRQSTAT_6362_REG(0) ++#define irq_mask_reg0 PERF_IRQMASK_6362_REG(0) + #define irq_bits 64 + #define is_ext_irq_cascaded 1 + #define ext_irq_start (BCM_6362_EXT_IRQ0 - IRQ_INTERNAL_BASE) +@@ -94,8 +94,8 @@ static void __internal_irq_unmask_64(uns + #define ext_irq_cfg_reg2 0 + #endif + #ifdef CONFIG_BCM63XX_CPU_6368 +-#define irq_stat_reg PERF_IRQSTAT_6368_REG +-#define irq_mask_reg PERF_IRQMASK_6368_REG ++#define irq_stat_reg0 PERF_IRQSTAT_6368_REG(0) ++#define irq_mask_reg0 PERF_IRQMASK_6368_REG(0) + #define irq_bits 64 + #define is_ext_irq_cascaded 1 + #define ext_irq_start (BCM_6368_EXT_IRQ0 - IRQ_INTERNAL_BASE) +@@ -115,15 +115,15 @@ static void __internal_irq_unmask_64(uns + #define internal_irq_unmask __internal_irq_unmask_64 + #endif + +-#define irq_stat_addr (bcm63xx_regset_address(RSET_PERF) + irq_stat_reg) +-#define irq_mask_addr (bcm63xx_regset_address(RSET_PERF) + irq_mask_reg) ++#define irq_stat_addr0 (bcm63xx_regset_address(RSET_PERF) + irq_stat_reg0) ++#define irq_mask_addr0 (bcm63xx_regset_address(RSET_PERF) + irq_mask_reg0) + + static inline void bcm63xx_init_irq(void) + { + } + #else /* ! BCMCPU_RUNTIME_DETECT */ + +-static u32 irq_stat_addr, irq_mask_addr; ++static u32 irq_stat_addr0, irq_mask_addr0; + static void (*dispatch_internal)(void); + static int is_ext_irq_cascaded; + static unsigned int ext_irq_count; +@@ -136,13 +136,13 @@ static void bcm63xx_init_irq(void) + { + int irq_bits; + +- irq_stat_addr = bcm63xx_regset_address(RSET_PERF); +- irq_mask_addr = bcm63xx_regset_address(RSET_PERF); ++ irq_stat_addr0 = bcm63xx_regset_address(RSET_PERF); ++ irq_mask_addr0 = bcm63xx_regset_address(RSET_PERF); + + switch (bcm63xx_get_cpu_id()) { + case BCM6328_CPU_ID: +- irq_stat_addr += PERF_IRQSTAT_6328_REG; +- irq_mask_addr += PERF_IRQMASK_6328_REG; ++ irq_stat_addr0 += PERF_IRQSTAT_6328_REG(0); ++ irq_mask_addr0 += PERF_IRQMASK_6328_REG(0); + irq_bits = 64; + ext_irq_count = 4; + is_ext_irq_cascaded = 1; +@@ -151,29 +151,29 @@ static void bcm63xx_init_irq(void) + ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6328; + break; + case BCM6338_CPU_ID: +- irq_stat_addr += PERF_IRQSTAT_6338_REG; +- irq_mask_addr += PERF_IRQMASK_6338_REG; ++ irq_stat_addr0 += PERF_IRQSTAT_6338_REG; ++ irq_mask_addr0 += PERF_IRQMASK_6338_REG; + irq_bits = 32; + ext_irq_count = 4; + ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6338; + break; + case BCM6345_CPU_ID: +- irq_stat_addr += PERF_IRQSTAT_6345_REG; +- irq_mask_addr += PERF_IRQMASK_6345_REG; ++ irq_stat_addr0 += PERF_IRQSTAT_6345_REG; ++ irq_mask_addr0 += PERF_IRQMASK_6345_REG; + irq_bits = 32; + ext_irq_count = 4; + ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6345; + break; + case BCM6348_CPU_ID: +- irq_stat_addr += PERF_IRQSTAT_6348_REG; +- irq_mask_addr += PERF_IRQMASK_6348_REG; ++ irq_stat_addr0 += PERF_IRQSTAT_6348_REG; ++ irq_mask_addr0 += PERF_IRQMASK_6348_REG; + irq_bits = 32; + ext_irq_count = 4; + ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6348; + break; + case BCM6358_CPU_ID: +- irq_stat_addr += PERF_IRQSTAT_6358_REG; +- irq_mask_addr += PERF_IRQMASK_6358_REG; ++ irq_stat_addr0 += PERF_IRQSTAT_6358_REG(0); ++ irq_mask_addr0 += PERF_IRQMASK_6358_REG(0); + irq_bits = 32; + ext_irq_count = 4; + is_ext_irq_cascaded = 1; +@@ -182,8 +182,8 @@ static void bcm63xx_init_irq(void) + ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6358; + break; + case BCM6362_CPU_ID: +- irq_stat_addr += PERF_IRQSTAT_6362_REG; +- irq_mask_addr += PERF_IRQMASK_6362_REG; ++ irq_stat_addr0 += PERF_IRQSTAT_6362_REG(0); ++ irq_mask_addr0 += PERF_IRQMASK_6362_REG(0); + irq_bits = 64; + ext_irq_count = 4; + is_ext_irq_cascaded = 1; +@@ -192,8 +192,8 @@ static void bcm63xx_init_irq(void) + ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6362; + break; + case BCM6368_CPU_ID: +- irq_stat_addr += PERF_IRQSTAT_6368_REG; +- irq_mask_addr += PERF_IRQMASK_6368_REG; ++ irq_stat_addr0 += PERF_IRQSTAT_6368_REG(0); ++ irq_mask_addr0 += PERF_IRQMASK_6368_REG(0); + irq_bits = 64; + ext_irq_count = 6; + is_ext_irq_cascaded = 1; +@@ -253,8 +253,8 @@ void __dispatch_internal_##width(void) + for (src = 0, tgt = (width / 32); src < (width / 32); src++) { \ + u32 val; \ + \ +- val = bcm_readl(irq_stat_addr + src * sizeof(u32)); \ +- val &= bcm_readl(irq_mask_addr + src * sizeof(u32)); \ ++ val = bcm_readl(irq_stat_addr0 + src * sizeof(u32)); \ ++ val &= bcm_readl(irq_mask_addr0 + src * sizeof(u32)); \ + pending[--tgt] = val; \ + \ + if (val) \ +@@ -281,9 +281,9 @@ static void __internal_irq_mask_##width( + unsigned reg = (irq / 32) ^ (width/32 - 1); \ + unsigned bit = irq & 0x1f; \ + \ +- val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ ++ val = bcm_readl(irq_mask_addr0 + reg * sizeof(u32)); \ + val &= ~(1 << bit); \ +- bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ ++ bcm_writel(val, irq_mask_addr0 + reg * sizeof(u32)); \ + } \ + \ + static void __internal_irq_unmask_##width(unsigned int irq) \ +@@ -292,9 +292,9 @@ static void __internal_irq_unmask_##widt + unsigned reg = (irq / 32) ^ (width/32 - 1); \ + unsigned bit = irq & 0x1f; \ + \ +- val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ ++ val = bcm_readl(irq_mask_addr0 + reg * sizeof(u32)); \ + val |= (1 << bit); \ +- bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ ++ bcm_writel(val, irq_mask_addr0 + reg * sizeof(u32)); \ + } + + BUILD_IPIC_INTERNAL(32); +--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h ++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h +@@ -181,22 +181,22 @@ + #define SYS_PLL_SOFT_RESET 0x1 + + /* Interrupt Mask register */ +-#define PERF_IRQMASK_6328_REG 0x20 ++#define PERF_IRQMASK_6328_REG(x) (0x20 + (x) * 0x10) + #define PERF_IRQMASK_6338_REG 0xc + #define PERF_IRQMASK_6345_REG 0xc + #define PERF_IRQMASK_6348_REG 0xc +-#define PERF_IRQMASK_6358_REG 0xc +-#define PERF_IRQMASK_6362_REG 0x20 +-#define PERF_IRQMASK_6368_REG 0x20 ++#define PERF_IRQMASK_6358_REG(x) (0xc + (x) * 0x2c) ++#define PERF_IRQMASK_6362_REG(x) (0x20 + (x) * 0x10) ++#define PERF_IRQMASK_6368_REG(x) (0x20 + (x) * 0x10) + + /* Interrupt Status register */ +-#define PERF_IRQSTAT_6328_REG 0x28 ++#define PERF_IRQSTAT_6328_REG(x) (0x28 + (x) * 0x10) + #define PERF_IRQSTAT_6338_REG 0x10 + #define PERF_IRQSTAT_6345_REG 0x10 + #define PERF_IRQSTAT_6348_REG 0x10 +-#define PERF_IRQSTAT_6358_REG 0x10 +-#define PERF_IRQSTAT_6362_REG 0x28 +-#define PERF_IRQSTAT_6368_REG 0x28 ++#define PERF_IRQSTAT_6358_REG(x) (0x10 + (x) * 0x2c) ++#define PERF_IRQSTAT_6362_REG(x) (0x28 + (x) * 0x10) ++#define PERF_IRQSTAT_6368_REG(x) (0x28 + (x) * 0x10) + + /* External Interrupt Configuration register */ + #define PERF_EXTIRQ_CFG_REG_6328 0x18 diff --git a/target/linux/brcm63xx/patches-3.8/316-MIPS-BCM63XX-populate-irq_-stat-mask-_addr-for-secon.patch b/target/linux/brcm63xx/patches-3.8/316-MIPS-BCM63XX-populate-irq_-stat-mask-_addr-for-secon.patch new file mode 100644 index 000000000..094eaa88c --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/316-MIPS-BCM63XX-populate-irq_-stat-mask-_addr-for-secon.patch @@ -0,0 +1,138 @@ +From b14de5c78d32f8f98535a99ea56bb924beb66810 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Thu, 25 Apr 2013 00:31:29 +0200 +Subject: [PATCH 07/13] MIPS: BCM63XX: populate irq_{stat,mask}_addr for + second CPU + +Populate it for all platforms with a BMIPS4350. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 28 +++++++++++++++++++++++++++- + 1 file changed, 27 insertions(+), 1 deletion(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -30,6 +30,8 @@ static void __internal_irq_unmask_64(uns + #ifdef CONFIG_BCM63XX_CPU_6328 + #define irq_stat_reg0 PERF_IRQSTAT_6328_REG(0) + #define irq_mask_reg0 PERF_IRQMASK_6328_REG(0) ++#define irq_stat_reg1 PERF_IRQSTAT_6328_REG(1) ++#define irq_mask_reg1 PERF_IRQMASK_6328_REG(1) + #define irq_bits 64 + #define is_ext_irq_cascaded 1 + #define ext_irq_start (BCM_6328_EXT_IRQ0 - IRQ_INTERNAL_BASE) +@@ -41,6 +43,8 @@ static void __internal_irq_unmask_64(uns + #ifdef CONFIG_BCM63XX_CPU_6338 + #define irq_stat_reg0 PERF_IRQSTAT_6338_REG + #define irq_mask_reg0 PERF_IRQMASK_6338_REG ++#define irq_stat_reg1 0 ++#define irq_mask_reg1 0 + #define irq_bits 32 + #define is_ext_irq_cascaded 0 + #define ext_irq_start 0 +@@ -52,6 +56,8 @@ static void __internal_irq_unmask_64(uns + #ifdef CONFIG_BCM63XX_CPU_6345 + #define irq_stat_reg0 PERF_IRQSTAT_6345_REG + #define irq_mask_reg0 PERF_IRQMASK_6345_REG ++#define irq_stat_reg1 0 ++#define irq_mask_reg1 0 + #define irq_bits 32 + #define is_ext_irq_cascaded 0 + #define ext_irq_start 0 +@@ -63,6 +69,8 @@ static void __internal_irq_unmask_64(uns + #ifdef CONFIG_BCM63XX_CPU_6348 + #define irq_stat_reg0 PERF_IRQSTAT_6348_REG + #define irq_mask_reg0 PERF_IRQMASK_6348_REG ++#define irq_stat_reg1 0 ++#define irq_mask_reg1 0 + #define irq_bits 32 + #define is_ext_irq_cascaded 0 + #define ext_irq_start 0 +@@ -74,6 +82,8 @@ static void __internal_irq_unmask_64(uns + #ifdef CONFIG_BCM63XX_CPU_6358 + #define irq_stat_reg0 PERF_IRQSTAT_6358_REG(0) + #define irq_mask_reg0 PERF_IRQMASK_6358_REG(0) ++#define irq_stat_reg1 PERF_IRQSTAT_6358_REG(1) ++#define irq_mask_reg1 PERF_IRQMASK_6358_REG(1) + #define irq_bits 32 + #define is_ext_irq_cascaded 1 + #define ext_irq_start (BCM_6358_EXT_IRQ0 - IRQ_INTERNAL_BASE) +@@ -85,6 +95,8 @@ static void __internal_irq_unmask_64(uns + #ifdef CONFIG_BCM63XX_CPU_6362 + #define irq_stat_reg0 PERF_IRQSTAT_6362_REG(0) + #define irq_mask_reg0 PERF_IRQMASK_6362_REG(0) ++#define irq_stat_reg1 PERF_IRQSTAT_6362_REG(1) ++#define irq_mask_reg1 PERF_IRQMASK_6362_REG(1) + #define irq_bits 64 + #define is_ext_irq_cascaded 1 + #define ext_irq_start (BCM_6362_EXT_IRQ0 - IRQ_INTERNAL_BASE) +@@ -96,6 +108,8 @@ static void __internal_irq_unmask_64(uns + #ifdef CONFIG_BCM63XX_CPU_6368 + #define irq_stat_reg0 PERF_IRQSTAT_6368_REG(0) + #define irq_mask_reg0 PERF_IRQMASK_6368_REG(0) ++#define irq_stat_reg1 PERF_IRQSTAT_6368_REG(1) ++#define irq_mask_reg1 PERF_IRQMASK_6368_REG(1) + #define irq_bits 64 + #define is_ext_irq_cascaded 1 + #define ext_irq_start (BCM_6368_EXT_IRQ0 - IRQ_INTERNAL_BASE) +@@ -117,13 +131,15 @@ static void __internal_irq_unmask_64(uns + + #define irq_stat_addr0 (bcm63xx_regset_address(RSET_PERF) + irq_stat_reg0) + #define irq_mask_addr0 (bcm63xx_regset_address(RSET_PERF) + irq_mask_reg0) ++#define irq_stat_addr1 (bcm63xx_regset_address(RSET_PERF) + irq_stat_reg1) ++#define irq_mask_addr1 (bcm63xx_regset_address(RSET_PERF) + irq_mask_reg1) + + static inline void bcm63xx_init_irq(void) + { + } + #else /* ! BCMCPU_RUNTIME_DETECT */ + +-static u32 irq_stat_addr0, irq_mask_addr0; ++static u32 irq_stat_addr0, irq_mask_addr0, irq_stat_addr1, irq_mask_addr1; + static void (*dispatch_internal)(void); + static int is_ext_irq_cascaded; + static unsigned int ext_irq_count; +@@ -138,11 +154,15 @@ static void bcm63xx_init_irq(void) + + irq_stat_addr0 = bcm63xx_regset_address(RSET_PERF); + irq_mask_addr0 = bcm63xx_regset_address(RSET_PERF); ++ irq_stat_addr1 = bcm63xx_regset_address(RSET_PERF); ++ irq_mask_addr1 = bcm63xx_regset_address(RSET_PERF); + + switch (bcm63xx_get_cpu_id()) { + case BCM6328_CPU_ID: + irq_stat_addr0 += PERF_IRQSTAT_6328_REG(0); + irq_mask_addr0 += PERF_IRQMASK_6328_REG(0); ++ irq_stat_addr1 += PERF_IRQSTAT_6328_REG(1); ++ irq_stat_addr1 += PERF_IRQMASK_6328_REG(1); + irq_bits = 64; + ext_irq_count = 4; + is_ext_irq_cascaded = 1; +@@ -174,6 +194,8 @@ static void bcm63xx_init_irq(void) + case BCM6358_CPU_ID: + irq_stat_addr0 += PERF_IRQSTAT_6358_REG(0); + irq_mask_addr0 += PERF_IRQMASK_6358_REG(0); ++ irq_stat_addr1 += PERF_IRQSTAT_6358_REG(1); ++ irq_mask_addr1 += PERF_IRQMASK_6358_REG(1); + irq_bits = 32; + ext_irq_count = 4; + is_ext_irq_cascaded = 1; +@@ -184,6 +206,8 @@ static void bcm63xx_init_irq(void) + case BCM6362_CPU_ID: + irq_stat_addr0 += PERF_IRQSTAT_6362_REG(0); + irq_mask_addr0 += PERF_IRQMASK_6362_REG(0); ++ irq_stat_addr1 += PERF_IRQSTAT_6362_REG(1); ++ irq_mask_addr1 += PERF_IRQMASK_6362_REG(1); + irq_bits = 64; + ext_irq_count = 4; + is_ext_irq_cascaded = 1; +@@ -194,6 +218,8 @@ static void bcm63xx_init_irq(void) + case BCM6368_CPU_ID: + irq_stat_addr0 += PERF_IRQSTAT_6368_REG(0); + irq_mask_addr0 += PERF_IRQMASK_6368_REG(0); ++ irq_stat_addr1 += PERF_IRQSTAT_6368_REG(1); ++ irq_mask_addr1 += PERF_IRQMASK_6368_REG(1); + irq_bits = 64; + ext_irq_count = 6; + is_ext_irq_cascaded = 1; diff --git a/target/linux/brcm63xx/patches-3.8/317-MIPS-BCM63XX-use-a-helper-for-getting-the-right-regi.patch b/target/linux/brcm63xx/patches-3.8/317-MIPS-BCM63XX-use-a-helper-for-getting-the-right-regi.patch new file mode 100644 index 000000000..3931b218c --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/317-MIPS-BCM63XX-use-a-helper-for-getting-the-right-regi.patch @@ -0,0 +1,80 @@ +From 7c9d3fe01034adbb890aab7c44534658f89c211b Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Thu, 25 Apr 2013 15:35:12 +0200 +Subject: [PATCH 08/13] MIPS: BCM63XX: use a helper for getting the right + register address + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 30 ++++++++++++++++++++++++------ + 1 file changed, 24 insertions(+), 6 deletions(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -251,6 +251,20 @@ static inline u32 get_ext_irq_perf_reg(i + return ext_irq_cfg_reg2; + } + ++static inline u32 get_irq_stat_addr(int cpu) ++{ ++ if (cpu == 0) ++ return irq_stat_addr0; ++ return irq_stat_addr1; ++} ++ ++static inline u32 get_irq_mask_addr(int cpu) ++{ ++ if (cpu == 0) ++ return irq_mask_addr0; ++ return irq_mask_addr1; ++} ++ + static inline void handle_internal(int intbit) + { + if (is_ext_irq_cascaded && +@@ -274,13 +288,15 @@ void __dispatch_internal_##width(void) + unsigned int src, tgt; \ + bool irqs_pending = false; \ + static int i; \ ++ u32 irq_stat_addr = get_irq_stat_addr(0); \ ++ u32 irq_mask_addr = get_irq_mask_addr(0); \ + \ + /* read registers in reverse order */ \ + for (src = 0, tgt = (width / 32); src < (width / 32); src++) { \ + u32 val; \ + \ +- val = bcm_readl(irq_stat_addr0 + src * sizeof(u32)); \ +- val &= bcm_readl(irq_mask_addr0 + src * sizeof(u32)); \ ++ val = bcm_readl(irq_stat_addr + src * sizeof(u32)); \ ++ val &= bcm_readl(irq_mask_addr + src * sizeof(u32)); \ + pending[--tgt] = val; \ + \ + if (val) \ +@@ -306,10 +322,11 @@ static void __internal_irq_mask_##width( + u32 val; \ + unsigned reg = (irq / 32) ^ (width/32 - 1); \ + unsigned bit = irq & 0x1f; \ ++ u32 irq_mask_addr = get_irq_mask_addr(0); \ + \ +- val = bcm_readl(irq_mask_addr0 + reg * sizeof(u32)); \ ++ val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ + val &= ~(1 << bit); \ +- bcm_writel(val, irq_mask_addr0 + reg * sizeof(u32)); \ ++ bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ + } \ + \ + static void __internal_irq_unmask_##width(unsigned int irq) \ +@@ -317,10 +334,11 @@ static void __internal_irq_unmask_##widt + u32 val; \ + unsigned reg = (irq / 32) ^ (width/32 - 1); \ + unsigned bit = irq & 0x1f; \ ++ u32 irq_mask_addr = get_irq_mask_addr(0); \ + \ +- val = bcm_readl(irq_mask_addr0 + reg * sizeof(u32)); \ ++ val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ + val |= (1 << bit); \ +- bcm_writel(val, irq_mask_addr0 + reg * sizeof(u32)); \ ++ bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ + } + + BUILD_IPIC_INTERNAL(32); diff --git a/target/linux/brcm63xx/patches-3.8/318-MIPS-BCM63XX-add-cpu-argument-to-dispatch-internal.patch b/target/linux/brcm63xx/patches-3.8/318-MIPS-BCM63XX-add-cpu-argument-to-dispatch-internal.patch new file mode 100644 index 000000000..081ec18b3 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/318-MIPS-BCM63XX-add-cpu-argument-to-dispatch-internal.patch @@ -0,0 +1,59 @@ +From 398337c57ebe3c704e0df5f569e6bd860ffe8914 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Fri, 26 Apr 2013 11:21:16 +0200 +Subject: [PATCH 09/13] MIPS: BCM63XX: add cpu argument to dispatch internal + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 14 +++++++------- + 1 file changed, 7 insertions(+), 7 deletions(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -19,8 +19,8 @@ + #include <bcm63xx_io.h> + #include <bcm63xx_irq.h> + +-static void __dispatch_internal_32(void) __maybe_unused; +-static void __dispatch_internal_64(void) __maybe_unused; ++static void __dispatch_internal_32(int cpu) __maybe_unused; ++static void __dispatch_internal_64(int cpu) __maybe_unused; + static void __internal_irq_mask_32(unsigned int irq) __maybe_unused; + static void __internal_irq_mask_64(unsigned int irq) __maybe_unused; + static void __internal_irq_unmask_32(unsigned int irq) __maybe_unused; +@@ -140,7 +140,7 @@ static inline void bcm63xx_init_irq(void + #else /* ! BCMCPU_RUNTIME_DETECT */ + + static u32 irq_stat_addr0, irq_mask_addr0, irq_stat_addr1, irq_mask_addr1; +-static void (*dispatch_internal)(void); ++static void (*dispatch_internal)(int cpu); + static int is_ext_irq_cascaded; + static unsigned int ext_irq_count; + static unsigned int ext_irq_start, ext_irq_end; +@@ -282,14 +282,14 @@ static inline void handle_internal(int i + */ + + #define BUILD_IPIC_INTERNAL(width) \ +-void __dispatch_internal_##width(void) \ ++void __dispatch_internal_##width(int cpu) \ + { \ + u32 pending[width / 32]; \ + unsigned int src, tgt; \ + bool irqs_pending = false; \ + static int i; \ +- u32 irq_stat_addr = get_irq_stat_addr(0); \ +- u32 irq_mask_addr = get_irq_mask_addr(0); \ ++ u32 irq_stat_addr = get_irq_stat_addr(cpu); \ ++ u32 irq_mask_addr = get_irq_mask_addr(cpu); \ + \ + /* read registers in reverse order */ \ + for (src = 0, tgt = (width / 32); src < (width / 32); src++) { \ +@@ -361,7 +361,7 @@ asmlinkage void plat_irq_dispatch(void) + if (cause & CAUSEF_IP1) + do_IRQ(1); + if (cause & CAUSEF_IP2) +- dispatch_internal(); ++ dispatch_internal(0); + if (!is_ext_irq_cascaded) { + if (cause & CAUSEF_IP3) + do_IRQ(IRQ_EXT_0); diff --git a/target/linux/brcm63xx/patches-3.8/319-MIPS-BCM63XX-protect-irq-register-accesses-with-a-sp.patch b/target/linux/brcm63xx/patches-3.8/319-MIPS-BCM63XX-protect-irq-register-accesses-with-a-sp.patch new file mode 100644 index 000000000..76e8c3267 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/319-MIPS-BCM63XX-protect-irq-register-accesses-with-a-sp.patch @@ -0,0 +1,174 @@ +From 7b8e7bc9806b61be2f07bf2bbb5e3ee6e0f333e9 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Sun, 21 Apr 2013 15:38:56 +0200 +Subject: [PATCH 10/13] MIPS: BCM63XX: protect irq register accesses with a + spinlock + +Since IRQs can be handled on both CPUs, we need to ensure that we +don't try to modify the IRQ registers at the same time. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 47 ++++++++++++++++++++++++++++++++++++++++++----- + 1 file changed, 42 insertions(+), 5 deletions(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -12,6 +12,7 @@ + #include <linux/interrupt.h> + #include <linux/module.h> + #include <linux/irq.h> ++#include <linux/spinlock.h> + #include <asm/irq_cpu.h> + #include <asm/mipsregs.h> + #include <bcm63xx_cpu.h> +@@ -26,6 +27,9 @@ static void __internal_irq_mask_64(unsig + static void __internal_irq_unmask_32(unsigned int irq) __maybe_unused; + static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused; + ++static DEFINE_SPINLOCK(ipic_lock); ++static DEFINE_SPINLOCK(epic_lock); ++ + #ifndef BCMCPU_RUNTIME_DETECT + #ifdef CONFIG_BCM63XX_CPU_6328 + #define irq_stat_reg0 PERF_IRQSTAT_6328_REG(0) +@@ -290,7 +294,9 @@ void __dispatch_internal_##width(int cpu + static int i; \ + u32 irq_stat_addr = get_irq_stat_addr(cpu); \ + u32 irq_mask_addr = get_irq_mask_addr(cpu); \ ++ unsigned long flags; \ + \ ++ spin_lock_irqsave(&ipic_lock, flags); \ + /* read registers in reverse order */ \ + for (src = 0, tgt = (width / 32); src < (width / 32); src++) { \ + u32 val; \ +@@ -302,6 +308,7 @@ void __dispatch_internal_##width(int cpu + if (val) \ + irqs_pending = true; \ + } \ ++ spin_unlock_irqrestore(&ipic_lock, flags); \ + \ + if (!irqs_pending) \ + return; \ +@@ -381,12 +388,20 @@ asmlinkage void plat_irq_dispatch(void) + */ + static void bcm63xx_internal_irq_mask(struct irq_data *d) + { ++ unsigned long flags; ++ ++ spin_lock_irqsave(&ipic_lock, flags); + internal_irq_mask(d->irq - IRQ_INTERNAL_BASE); ++ spin_unlock_irqrestore(&ipic_lock, flags); + } + + static void bcm63xx_internal_irq_unmask(struct irq_data *d) + { ++ unsigned long flags; ++ ++ spin_lock_irqsave(&ipic_lock, flags); + internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE); ++ spin_unlock_irqrestore(&ipic_lock, flags); + } + + /* +@@ -397,8 +412,11 @@ static void bcm63xx_external_irq_mask(st + { + unsigned int irq = d->irq - IRQ_EXTERNAL_BASE; + u32 reg, regaddr; ++ unsigned long flags; + + regaddr = get_ext_irq_perf_reg(irq); ++ ++ spin_lock_irqsave(&epic_lock, flags); + reg = bcm_perf_readl(regaddr); + + if (BCMCPU_IS_6348()) +@@ -407,16 +425,24 @@ static void bcm63xx_external_irq_mask(st + reg &= ~EXTIRQ_CFG_MASK(irq % 4); + + bcm_perf_writel(reg, regaddr); +- if (is_ext_irq_cascaded) +- internal_irq_mask(irq + ext_irq_start); ++ spin_unlock_irqrestore(&epic_lock, flags); ++ ++ if (is_ext_irq_cascaded) { ++ struct irq_data *cd = irq_get_irq_data(irq + ext_irq_start); ++ ++ bcm63xx_internal_irq_mask(cd); ++ } + } + + static void bcm63xx_external_irq_unmask(struct irq_data *d) + { + unsigned int irq = d->irq - IRQ_EXTERNAL_BASE; + u32 reg, regaddr; ++ unsigned long flags; + + regaddr = get_ext_irq_perf_reg(irq); ++ ++ spin_lock_irqsave(&epic_lock, flags); + reg = bcm_perf_readl(regaddr); + + if (BCMCPU_IS_6348()) +@@ -425,16 +451,22 @@ static void bcm63xx_external_irq_unmask( + reg |= EXTIRQ_CFG_MASK(irq % 4); + + bcm_perf_writel(reg, regaddr); ++ spin_unlock_irqrestore(&epic_lock, flags); ++ ++ if (is_ext_irq_cascaded) { ++ struct irq_data *cd = irq_get_irq_data(irq + ext_irq_start); + +- if (is_ext_irq_cascaded) +- internal_irq_unmask(irq + ext_irq_start); ++ bcm63xx_internal_irq_unmask(cd); ++ } + } + + static void bcm63xx_external_irq_clear(struct irq_data *d) + { + unsigned int irq = d->irq - IRQ_EXTERNAL_BASE; + u32 reg, regaddr; ++ unsigned long flags; + ++ spin_lock_irqsave(&epic_lock, flags); + regaddr = get_ext_irq_perf_reg(irq); + reg = bcm_perf_readl(regaddr); + +@@ -444,6 +476,7 @@ static void bcm63xx_external_irq_clear(s + reg |= EXTIRQ_CFG_CLEAR(irq % 4); + + bcm_perf_writel(reg, regaddr); ++ spin_unlock_irqrestore(&epic_lock, flags); + } + + static int bcm63xx_external_irq_set_type(struct irq_data *d, +@@ -452,6 +485,7 @@ static int bcm63xx_external_irq_set_type + unsigned int irq = d->irq - IRQ_EXTERNAL_BASE; + u32 reg, regaddr; + int levelsense, sense, bothedge; ++ unsigned long flags; + + flow_type &= IRQ_TYPE_SENSE_MASK; + +@@ -486,9 +520,11 @@ static int bcm63xx_external_irq_set_type + } + + regaddr = get_ext_irq_perf_reg(irq); +- reg = bcm_perf_readl(regaddr); + irq %= 4; + ++ spin_lock_irqsave(&epic_lock, flags); ++ reg = bcm_perf_readl(regaddr); ++ + switch (bcm63xx_get_cpu_id()) { + case BCM6348_CPU_ID: + if (levelsense) +@@ -529,6 +565,7 @@ static int bcm63xx_external_irq_set_type + } + + bcm_perf_writel(reg, regaddr); ++ spin_unlock_irqrestore(&epic_lock, flags); + + irqd_set_trigger_type(d, flow_type); + if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) diff --git a/target/linux/brcm63xx/patches-3.8/320-MIPS-BCM63XX-wire-up-the-second-CPU-s-irq-line.patch b/target/linux/brcm63xx/patches-3.8/320-MIPS-BCM63XX-wire-up-the-second-CPU-s-irq-line.patch new file mode 100644 index 000000000..2acbf30b0 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/320-MIPS-BCM63XX-wire-up-the-second-CPU-s-irq-line.patch @@ -0,0 +1,96 @@ +From 1baec3216529f795905b6376f9c8e4f14b114ba2 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Fri, 26 Apr 2013 12:03:15 +0200 +Subject: [PATCH 11/13] MIPS: BCM63XX: wire up the second CPU's irq line + +It's hardwired to IRQ3, so we don't need to actually check the CPU id. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 40 ++++++++++++++++++++++++++++++++-------- + 1 file changed, 32 insertions(+), 8 deletions(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -329,11 +329,15 @@ static void __internal_irq_mask_##width( + u32 val; \ + unsigned reg = (irq / 32) ^ (width/32 - 1); \ + unsigned bit = irq & 0x1f; \ +- u32 irq_mask_addr = get_irq_mask_addr(0); \ ++ int cpu; \ + \ +- val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ +- val &= ~(1 << bit); \ +- bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ ++ for_each_online_cpu(cpu) { \ ++ u32 irq_mask_addr = get_irq_mask_addr(cpu); \ ++ \ ++ val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ ++ val &= ~(1 << bit); \ ++ bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ ++ } \ + } \ + \ + static void __internal_irq_unmask_##width(unsigned int irq) \ +@@ -341,11 +345,15 @@ static void __internal_irq_unmask_##widt + u32 val; \ + unsigned reg = (irq / 32) ^ (width/32 - 1); \ + unsigned bit = irq & 0x1f; \ +- u32 irq_mask_addr = get_irq_mask_addr(0); \ ++ int cpu; \ ++ \ ++ for_each_online_cpu(cpu) { \ ++ u32 irq_mask_addr = get_irq_mask_addr(cpu); \ + \ +- val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ +- val |= (1 << bit); \ +- bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ ++ val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ ++ val |= (1 << bit); \ ++ bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ ++ } \ + } + + BUILD_IPIC_INTERNAL(32); +@@ -369,6 +377,10 @@ asmlinkage void plat_irq_dispatch(void) + do_IRQ(1); + if (cause & CAUSEF_IP2) + dispatch_internal(0); ++#ifdef CONFIG_SMP ++ if (cause & CAUSEF_IP3) ++ dispatch_internal(1); ++#else + if (!is_ext_irq_cascaded) { + if (cause & CAUSEF_IP3) + do_IRQ(IRQ_EXT_0); +@@ -379,6 +391,7 @@ asmlinkage void plat_irq_dispatch(void) + if (cause & CAUSEF_IP6) + do_IRQ(IRQ_EXT_3); + } ++#endif + } while (1); + } + +@@ -598,6 +611,14 @@ static struct irqaction cpu_ip2_cascade_ + .flags = IRQF_NO_THREAD, + }; + ++#ifdef CONFIG_SMP ++static struct irqaction cpu_ip3_cascade_action = { ++ .handler = no_action, ++ .name = "cascade_ip3", ++ .flags = IRQF_NO_THREAD, ++}; ++#endif ++ + static struct irqaction cpu_ext_cascade_action = { + .handler = no_action, + .name = "cascade_extirq", +@@ -624,4 +645,7 @@ void __init arch_init_irq(void) + } + + setup_irq(MIPS_CPU_IRQ_BASE + 2, &cpu_ip2_cascade_action); ++#ifdef CONFIG_SMP ++ setup_irq(MIPS_CPU_IRQ_BASE + 3, &cpu_ip3_cascade_action); ++#endif + } diff --git a/target/linux/brcm63xx/patches-3.8/321-MIPS-BCM63XX-add-cpumask-argument-to-unmask.patch b/target/linux/brcm63xx/patches-3.8/321-MIPS-BCM63XX-add-cpumask-argument-to-unmask.patch new file mode 100644 index 000000000..1047de39e --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/321-MIPS-BCM63XX-add-cpumask-argument-to-unmask.patch @@ -0,0 +1,68 @@ +From 8679976d2ec08db4e4a14ecdd1ee022b70e51fc6 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Tue, 30 Apr 2013 11:26:53 +0200 +Subject: [PATCH 12/13] MIPS: BCM63XX: add cpumask argument to unmask + +Allow selective unmasking of IPIC irqs. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 19 +++++++++++++------ + 1 file changed, 13 insertions(+), 6 deletions(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -24,8 +24,10 @@ static void __dispatch_internal_32(int c + static void __dispatch_internal_64(int cpu) __maybe_unused; + static void __internal_irq_mask_32(unsigned int irq) __maybe_unused; + static void __internal_irq_mask_64(unsigned int irq) __maybe_unused; +-static void __internal_irq_unmask_32(unsigned int irq) __maybe_unused; +-static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused; ++static void __internal_irq_unmask_32(unsigned int irq, ++ const struct cpumask *dest) __maybe_unused; ++static void __internal_irq_unmask_64(unsigned int irq, ++ const struct cpumask *dest) __maybe_unused; + + static DEFINE_SPINLOCK(ipic_lock); + static DEFINE_SPINLOCK(epic_lock); +@@ -150,7 +152,8 @@ static unsigned int ext_irq_count; + static unsigned int ext_irq_start, ext_irq_end; + static unsigned int ext_irq_cfg_reg1, ext_irq_cfg_reg2; + static void (*internal_irq_mask)(unsigned int irq); +-static void (*internal_irq_unmask)(unsigned int irq); ++static void (*internal_irq_unmask)(unsigned int irq, ++ const struct cpumask *dest); + + static void bcm63xx_init_irq(void) + { +@@ -340,7 +343,8 @@ static void __internal_irq_mask_##width( + } \ + } \ + \ +-static void __internal_irq_unmask_##width(unsigned int irq) \ ++static void __internal_irq_unmask_##width(unsigned int irq, \ ++ const struct cpumask *dest) \ + { \ + u32 val; \ + unsigned reg = (irq / 32) ^ (width/32 - 1); \ +@@ -351,7 +355,10 @@ static void __internal_irq_unmask_##widt + u32 irq_mask_addr = get_irq_mask_addr(cpu); \ + \ + val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \ +- val |= (1 << bit); \ ++ if (cpu_isset(cpu, *dest)) \ ++ val |= (1 << bit); \ ++ else \ ++ val &= ~(1 << bit); \ + bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \ + } \ + } +@@ -413,7 +420,7 @@ static void bcm63xx_internal_irq_unmask( + unsigned long flags; + + spin_lock_irqsave(&ipic_lock, flags); +- internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE); ++ internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE, cpu_online_mask); + spin_unlock_irqrestore(&ipic_lock, flags); + } + diff --git a/target/linux/brcm63xx/patches-3.8/322-MIPS-BCM63XX-allow-setting-affinity-for-IPIC.patch b/target/linux/brcm63xx/patches-3.8/322-MIPS-BCM63XX-allow-setting-affinity-for-IPIC.patch new file mode 100644 index 000000000..d976903d2 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.8/322-MIPS-BCM63XX-allow-setting-affinity-for-IPIC.patch @@ -0,0 +1,61 @@ +From a8bb19e5ba9a3a73fe6a761295b67b641a7bc9df Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Fri, 26 Apr 2013 12:06:03 +0200 +Subject: [PATCH 13/13] MIPS: BCM63XX: allow setting affinity for IPIC + +Add support for setting the SMP affinity for the IPIC IRQs. + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/irq.c | 27 ++++++++++++++++++++++++++- + 1 file changed, 26 insertions(+), 1 deletion(-) + +--- a/arch/mips/bcm63xx/irq.c ++++ b/arch/mips/bcm63xx/irq.c +@@ -418,9 +418,14 @@ static void bcm63xx_internal_irq_mask(st + static void bcm63xx_internal_irq_unmask(struct irq_data *d) + { + unsigned long flags; ++ const struct cpumask *dest = cpu_online_mask; + + spin_lock_irqsave(&ipic_lock, flags); +- internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE, cpu_online_mask); ++#ifdef CONFIG_SMP ++ if (irqd_affinity_was_set(d)) ++ dest = d->affinity; ++#endif ++ internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE, dest); + spin_unlock_irqrestore(&ipic_lock, flags); + } + +@@ -596,10 +601,30 @@ static int bcm63xx_external_irq_set_type + return IRQ_SET_MASK_OK_NOCOPY; + } + ++#ifdef CONFIG_SMP ++static int bcm63xx_internal_set_affinity(struct irq_data *data, ++ const struct cpumask *dest, ++ bool force) ++{ ++ unsigned int irq = data->irq - IRQ_INTERNAL_BASE; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&ipic_lock, flags); ++ if (!irqd_irq_disabled(data)) ++ internal_irq_unmask(irq, dest); ++ spin_unlock_irqrestore(&ipic_lock, flags); ++ ++ return 0; ++} ++#endif ++ + static struct irq_chip bcm63xx_internal_irq_chip = { + .name = "bcm63xx_ipic", + .irq_mask = bcm63xx_internal_irq_mask, + .irq_unmask = bcm63xx_internal_irq_unmask, ++#ifdef CONFIG_SMP ++ .irq_set_affinity = bcm63xx_internal_set_affinity, ++#endif + }; + + static struct irq_chip bcm63xx_external_irq_chip = { |