From 2fd0237538480c8d704c385b6f9abc3f6c46b760 Mon Sep 17 00:00:00 2001 From: Daniel Wolstenholme Date: Thu, 10 May 2007 22:33:02 -0700 Subject: [ARM] iop13xx: msi support Enable devices to signal interrupts via PCI memory cycles. rev6: * fix enable/disable typo, Michael Ellerman rev5: * fix up ack, enable, and disable for iop13xx_msi_chip rev4: * move smp compile fix to separate patch * use dynamic_irq_init in create_irq() * hookup mask/unmask routines in iop13xx_msi_chip rev3: * change msi.c to use linux/smp.h instead of asm/smp.h * call dynamic_irq_cleanup at destroy_irq time rev2: * destroy_irq did not take the full 128 bits of msi_irq_in_use into account * added missing '&' for calls to test_and_set_bit and clear_bit [ebiederm@xmission.com: review comments/suggestions] [dan.j.williams@intel.com: cleanups/forward port to 2.6-git] Signed-off-by: Daniel Wolstenholme Signed-off-by: Dan Williams Acked-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Russell King --- include/asm-arm/arch-iop13xx/iop13xx.h | 29 +++++++++++++++++++++++++++++ include/asm-arm/arch-iop13xx/irqs.h | 8 +++++++- include/asm-arm/arch-iop13xx/msi.h | 11 +++++++++++ 3 files changed, 47 insertions(+), 1 deletion(-) create mode 100644 include/asm-arm/arch-iop13xx/msi.h (limited to 'include/asm-arm') diff --git a/include/asm-arm/arch-iop13xx/iop13xx.h b/include/asm-arm/arch-iop13xx/iop13xx.h index 85707e9c3325..e6736c3d1f7f 100644 --- a/include/asm-arm/arch-iop13xx/iop13xx.h +++ b/include/asm-arm/arch-iop13xx/iop13xx.h @@ -181,6 +181,7 @@ static inline int iop13xx_cpu_id(void) #define IOP13XX_ADMA1_PMMR_OFFSET 0x00000200 #define IOP13XX_ADMA2_PMMR_OFFSET 0x00000400 #define IOP13XX_PBI_PMMR_OFFSET 0x00001580 +#define IOP13XX_MU_PMMR_OFFSET 0x00004000 #define IOP13XX_ESSR0_PMMR_OFFSET 0x00002188 #define IOP13XX_ESSR0 IOP13XX_REG_ADDR32(0x00002188) @@ -412,6 +413,34 @@ static inline int iop13xx_cpu_id(void) #define IOP13XX_ATU_OUMBAR_FUNC_NUM_MASK (0x7) /*=======================================================================*/ +/*============================MESSAGING UNIT=============================*/ +#define IOP13XX_MU_OFFSET(ofs) IOP13XX_REG_ADDR32(IOP13XX_MU_PMMR_OFFSET +\ + (ofs)) + +#define IOP13XX_MU_IMR0 IOP13XX_MU_OFFSET(0x10) +#define IOP13XX_MU_IMR1 IOP13XX_MU_OFFSET(0x14) +#define IOP13XX_MU_OMR0 IOP13XX_MU_OFFSET(0x18) +#define IOP13XX_MU_OMR1 IOP13XX_MU_OFFSET(0x1C) +#define IOP13XX_MU_IDR IOP13XX_MU_OFFSET(0x20) +#define IOP13XX_MU_IISR IOP13XX_MU_OFFSET(0x24) +#define IOP13XX_MU_IIMR IOP13XX_MU_OFFSET(0x28) +#define IOP13XX_MU_ODR IOP13XX_MU_OFFSET(0x2C) +#define IOP13XX_MU_OISR IOP13XX_MU_OFFSET(0x30) +#define IOP13XX_MU_OIMR IOP13XX_MU_OFFSET(0x34) +#define IOP13XX_MU_IRCSR IOP13XX_MU_OFFSET(0x38) +#define IOP13XX_MU_ORCSR IOP13XX_MU_OFFSET(0x3C) +#define IOP13XX_MU_MIMR IOP13XX_MU_OFFSET(0x48) +#define IOP13XX_MU_MUCR IOP13XX_MU_OFFSET(0x50) +#define IOP13XX_MU_QBAR IOP13XX_MU_OFFSET(0x54) +#define IOP13XX_MU_MUBAR IOP13XX_MU_OFFSET(0x84) + +#define IOP13XX_MU_WINDOW_SIZE (8 * 1024) +#define IOP13XX_MU_BASE_PHYS (0xff000000) +#define IOP13XX_MU_BASE_PCI (0xff000000) +#define IOP13XX_MU_MIMR_PCI (IOP13XX_MU_BASE_PCI + 0x48) +#define IOP13XX_MU_MIMR_CORE_SELECT (15) +/*=======================================================================*/ + /*==============================ADMA UNITS===============================*/ #define IOP13XX_ADMA_PHYS_BASE(chan) IOP13XX_REG_ADDR32_PHYS((chan << 9)) #define IOP13XX_ADMA_UPPER_PA(chan) (IOP13XX_ADMA_PHYS_BASE(chan) + 0xc0) diff --git a/include/asm-arm/arch-iop13xx/irqs.h b/include/asm-arm/arch-iop13xx/irqs.h index 5c6fac2a4004..054e7acb5bfa 100644 --- a/include/asm-arm/arch-iop13xx/irqs.h +++ b/include/asm-arm/arch-iop13xx/irqs.h @@ -168,7 +168,7 @@ static inline u32 read_intpnd_3(void) #define IRQ_IOP13XX_ATUE_IMD (110) /* 14 */ #define IRQ_IOP13XX_MU_MSI_TB (111) /* 15 */ #define IRQ_IOP13XX_RSVD_112 (112) /* 16 */ -#define IRQ_IOP13XX_RSVD_113 (113) /* 17 */ +#define IRQ_IOP13XX_INBD_MSI (113) /* 17 */ #define IRQ_IOP13XX_RSVD_114 (114) /* 18 */ #define IRQ_IOP13XX_RSVD_115 (115) /* 19 */ #define IRQ_IOP13XX_RSVD_116 (116) /* 20 */ @@ -184,7 +184,13 @@ static inline u32 read_intpnd_3(void) #define IRQ_IOP13XX_RSVD_126 (126) /* 30 */ #define IRQ_IOP13XX_HPI (127) /* 31 */ +#ifdef CONFIG_PCI_MSI +#define IRQ_IOP13XX_MSI_0 (IRQ_IOP13XX_HPI + 1) +#define NR_IOP13XX_IRQS (IRQ_IOP13XX_MSI_0 + 128) +#else #define NR_IOP13XX_IRQS (IRQ_IOP13XX_HPI + 1) +#endif + #define NR_IRQS NR_IOP13XX_IRQS #endif /* _IOP13XX_IRQ_H_ */ diff --git a/include/asm-arm/arch-iop13xx/msi.h b/include/asm-arm/arch-iop13xx/msi.h new file mode 100644 index 000000000000..b80c5ae17e99 --- /dev/null +++ b/include/asm-arm/arch-iop13xx/msi.h @@ -0,0 +1,11 @@ +#ifndef _IOP13XX_MSI_H_ +#define _IOP13XX_MSI_H_ +#ifdef CONFIG_PCI_MSI +void iop13xx_msi_init(void); +#else +static inline void iop13xx_msi_init(void) +{ + return; +} +#endif +#endif -- cgit v1.2.3