From 25732ad493b22b7d9f0d250c5a9ad17219f96a47 Mon Sep 17 00:00:00 2001 From: Bruce Losure Date: Fri, 2 Sep 2005 15:16:35 -0500 Subject: [PATCH] [IA64] Altix patch for fpga reset 1) workaround a h/w reset issue 2) to improve the determination of FPGA-based h/w in the arch/ia64/sn/kernel/tiocx code. Signed-off-by: Bruce Losure Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/tiocx.c | 62 +++++++++++++++++++++++--------------------- include/asm-ia64/sn/l1.h | 12 +++++++++ include/asm-ia64/sn/sn_sal.h | 43 ++++++++++++++++++++++++++++++ include/asm-ia64/sn/tiocx.h | 3 ++- 4 files changed, 90 insertions(+), 30 deletions(-) diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c index 254fe15..d866471 100644 --- a/arch/ia64/sn/kernel/tiocx.c +++ b/arch/ia64/sn/kernel/tiocx.c @@ -183,11 +183,12 @@ int cx_driver_unregister(struct cx_drv *cx_driver) * @part_num: device's part number * @mfg_num: device's manufacturer number * @hubdev: hub info associated with this device + * @bt: board type of the device * */ int cx_device_register(nasid_t nasid, int part_num, int mfg_num, - struct hubdev_info *hubdev) + struct hubdev_info *hubdev, int bt) { struct cx_dev *cx_dev; @@ -200,6 +201,7 @@ cx_device_register(nasid_t nasid, int part_num, int mfg_num, cx_dev->cx_id.mfg_num = mfg_num; cx_dev->cx_id.nasid = nasid; cx_dev->hubdev = hubdev; + cx_dev->bt = bt; cx_dev->dev.parent = NULL; cx_dev->dev.bus = &tiocx_bus_type; @@ -238,7 +240,8 @@ static int cx_device_reload(struct cx_dev *cx_dev) { cx_device_unregister(cx_dev); return cx_device_register(cx_dev->cx_id.nasid, cx_dev->cx_id.part_num, - cx_dev->cx_id.mfg_num, cx_dev->hubdev); + cx_dev->cx_id.mfg_num, cx_dev->hubdev, + cx_dev->bt); } static inline uint64_t tiocx_intr_alloc(nasid_t nasid, int widget, @@ -365,26 +368,20 @@ static void tio_corelet_reset(nasid_t nasid, int corelet) udelay(2000); } -static int tiocx_btchar_get(int nasid) +static int is_fpga_tio(int nasid, int *bt) { - moduleid_t module_id; - geoid_t geoid; - int cnodeid; - - cnodeid = nasid_to_cnodeid(nasid); - geoid = cnodeid_get_geoid(cnodeid); - module_id = geo_module(geoid); - return MODULE_GET_BTCHAR(module_id); -} + int ioboard_type; -static int is_fpga_brick(int nasid) -{ - switch (tiocx_btchar_get(nasid)) { + ioboard_type = ia64_sn_sysctl_ioboard_get(nasid); + + switch (ioboard_type) { case L1_BRICKTYPE_SA: case L1_BRICKTYPE_ATHENA: - case L1_BRICKTYPE_DAYTONA: + case L1_BOARDTYPE_DAYTONA: + *bt = ioboard_type; return 1; } + return 0; } @@ -407,16 +404,22 @@ static int tiocx_reload(struct cx_dev *cx_dev) if (bitstream_loaded(nasid)) { uint64_t cx_id; - - cx_id = - *(volatile uint64_t *)(TIO_SWIN_BASE(nasid, TIOCX_CORELET) + + int rv; + + rv = ia64_sn_sysctl_tio_clock_reset(nasid); + if (rv) { + printk(KERN_ALERT "CX port JTAG reset failed.\n"); + } else { + cx_id = *(volatile uint64_t *) + (TIO_SWIN_BASE(nasid, TIOCX_CORELET) + WIDGET_ID); - part_num = XWIDGET_PART_NUM(cx_id); - mfg_num = XWIDGET_MFG_NUM(cx_id); - DBG("part= 0x%x, mfg= 0x%x\n", part_num, mfg_num); - /* just ignore it if it's a CE */ - if (part_num == TIO_CE_ASIC_PARTNUM) - return 0; + part_num = XWIDGET_PART_NUM(cx_id); + mfg_num = XWIDGET_MFG_NUM(cx_id); + DBG("part= 0x%x, mfg= 0x%x\n", part_num, mfg_num); + /* just ignore it if it's a CE */ + if (part_num == TIO_CE_ASIC_PARTNUM) + return 0; + } } cx_dev->cx_id.part_num = part_num; @@ -436,10 +439,10 @@ static ssize_t show_cxdev_control(struct device *dev, struct device_attribute *a { struct cx_dev *cx_dev = to_cx_dev(dev); - return sprintf(buf, "0x%x 0x%x 0x%x %d\n", + return sprintf(buf, "0x%x 0x%x 0x%x 0x%x\n", cx_dev->cx_id.nasid, cx_dev->cx_id.part_num, cx_dev->cx_id.mfg_num, - tiocx_btchar_get(cx_dev->cx_id.nasid)); + cx_dev->bt); } static ssize_t store_cxdev_control(struct device *dev, struct device_attribute *attr, const char *buf, @@ -488,11 +491,12 @@ static int __init tiocx_init(void) for (cnodeid = 0; cnodeid < MAX_COMPACT_NODES; cnodeid++) { nasid_t nasid; + int bt; if ((nasid = cnodeid_to_nasid(cnodeid)) < 0) break; /* No more nasids .. bail out of loop */ - if ((nasid & 0x1) && is_fpga_brick(nasid)) { + if ((nasid & 0x1) && is_fpga_tio(nasid, &bt)) { struct hubdev_info *hubdev; struct xwidget_info *widgetp; @@ -512,7 +516,7 @@ static int __init tiocx_init(void) if (cx_device_register (nasid, widgetp->xwi_hwid.part_num, - widgetp->xwi_hwid.mfg_num, hubdev) < 0) + widgetp->xwi_hwid.mfg_num, hubdev, bt) < 0) return -ENXIO; else found_tiocx_device++; diff --git a/include/asm-ia64/sn/l1.h b/include/asm-ia64/sn/l1.h index 2e5f0aa..e3b8191 100644 --- a/include/asm-ia64/sn/l1.h +++ b/include/asm-ia64/sn/l1.h @@ -35,4 +35,16 @@ #define L1_BRICKTYPE_ATHENA 0x2b /* + */ #define L1_BRICKTYPE_DAYTONA 0x7a /* z */ +/* board type response codes */ +#define L1_BOARDTYPE_IP69 0x0100 /* CA */ +#define L1_BOARDTYPE_IP63 0x0200 /* CB */ +#define L1_BOARDTYPE_BASEIO 0x0300 /* IB */ +#define L1_BOARDTYPE_PCIE2SLOT 0x0400 /* IC */ +#define L1_BOARDTYPE_PCIX3SLOT 0x0500 /* ID */ +#define L1_BOARDTYPE_PCIXPCIE4SLOT 0x0600 /* IE */ +#define L1_BOARDTYPE_ABACUS 0x0700 /* AB */ +#define L1_BOARDTYPE_DAYTONA 0x0800 /* AD */ +#define L1_BOARDTYPE_INVAL (-1) /* invalid brick type */ + + #endif /* _ASM_IA64_SN_L1_H */ diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h index e67825a..6f96ae8 100644 --- a/include/asm-ia64/sn/sn_sal.h +++ b/include/asm-ia64/sn/sn_sal.h @@ -47,6 +47,7 @@ #define SN_SAL_CONSOLE_PUTB 0x02000028 #define SN_SAL_CONSOLE_XMIT_CHARS 0x0200002a #define SN_SAL_CONSOLE_READC 0x0200002b +#define SN_SAL_SYSCTL_OP 0x02000030 #define SN_SAL_SYSCTL_MODID_GET 0x02000031 #define SN_SAL_SYSCTL_GET 0x02000032 #define SN_SAL_SYSCTL_IOBRICK_MODULE_GET 0x02000033 @@ -98,6 +99,13 @@ #define SAL_INTR_FREE 2 /* + * operations available on the generic SN_SAL_SYSCTL_OP + * runtime service + */ +#define SAL_SYSCTL_OP_IOBOARD 0x0001 /* retrieve board type */ +#define SAL_SYSCTL_OP_TIO_JLCK_RST 0x0002 /* issue TIO clock reset */ + +/* * IRouter (i.e. generalized system controller) operations */ #define SAL_IROUTER_OPEN 0 /* open a subchannel */ @@ -876,6 +884,41 @@ ia64_sn_sysctl_event_init(nasid_t nasid) return (int) rv.v0; } +/* + * Ask the system controller on the specified nasid to reset + * the CX corelet clock. Only valid on TIO nodes. + */ +static inline int +ia64_sn_sysctl_tio_clock_reset(nasid_t nasid) +{ + struct ia64_sal_retval rv; + SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_TIO_JLCK_RST, + nasid, 0, 0, 0, 0, 0); + if (rv.status != 0) + return (int)rv.status; + if (rv.v0 != 0) + return (int)rv.v0; + + return 0; +} + +/* + * Get the associated ioboard type for a given nasid. + */ +static inline int +ia64_sn_sysctl_ioboard_get(nasid_t nasid) +{ + struct ia64_sal_retval rv; + SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_IOBOARD, + nasid, 0, 0, 0, 0, 0); + if (rv.v0 != 0) + return (int)rv.v0; + if (rv.v1 != 0) + return (int)rv.v1; + + return 0; +} + /** * ia64_sn_get_fit_compt - read a FIT entry from the PROM header * @nasid: NASID of node to read diff --git a/include/asm-ia64/sn/tiocx.h b/include/asm-ia64/sn/tiocx.h index c5447a5..5699e75 100644 --- a/include/asm-ia64/sn/tiocx.h +++ b/include/asm-ia64/sn/tiocx.h @@ -19,6 +19,7 @@ struct cx_id_s { struct cx_dev { struct cx_id_s cx_id; + int bt; /* board/blade type */ void *soft; /* driver specific */ struct hubdev_info *hubdev; struct device dev; @@ -59,7 +60,7 @@ struct cx_drv { extern struct sn_irq_info *tiocx_irq_alloc(nasid_t, int, int, nasid_t, int); extern void tiocx_irq_free(struct sn_irq_info *); extern int cx_device_unregister(struct cx_dev *); -extern int cx_device_register(nasid_t, int, int, struct hubdev_info *); +extern int cx_device_register(nasid_t, int, int, struct hubdev_info *, int); extern int cx_driver_unregister(struct cx_drv *); extern int cx_driver_register(struct cx_drv *); extern uint64_t tiocx_dma_addr(uint64_t addr); -- 2.7.4