From 4f640efb3170dbcf99a37a3cc99060647b95428c Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Mon, 23 Jul 2007 18:43:44 -0700 Subject: Use resource_size_t for serial port IO addresses At present, various parts of the serial code use unsigned long to define resource addresses. This is a problem, because some 32-bit platforms have physical addresses larger than 32-bits, and have mmio serial uarts located above the 4GB point. This patch changes the type of mapbase in both struct uart_port and struct plat_serial8250_port to resource_size_t, which can be configured to be 64 bits on such platforms. The mapbase in serial_struct can't safely be changed, because that structure is user visible. Signed-off-by: David Gibson Signed-off-by: Josh Boyer Cc: Russell King Cc: Paul Mackerras Cc: Jason Wessel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/serial/serial_core.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/serial/serial_core.c') diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 9c57486c2e7..030a6063541 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -626,7 +626,7 @@ static int uart_get_info(struct uart_state *state, tmp.hub6 = port->hub6; tmp.io_type = port->iotype; tmp.iomem_reg_shift = port->regshift; - tmp.iomem_base = (void *)port->mapbase; + tmp.iomem_base = (void *)(unsigned long)port->mapbase; if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) return -EFAULT; @@ -1666,10 +1666,11 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i) return 0; mmio = port->iotype >= UPIO_MEM; - ret = sprintf(buf, "%d: uart:%s %s%08lX irq:%d", + ret = sprintf(buf, "%d: uart:%s %s%08llX irq:%d", port->line, uart_type(port), mmio ? "mmio:0x" : "port:", - mmio ? port->mapbase : (unsigned long) port->iobase, + mmio ? (unsigned long long)port->mapbase + : (unsigned long long) port->iobase, port->irq); if (port->type == PORT_UNKNOWN) { @@ -2069,7 +2070,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port) case UPIO_TSI: case UPIO_DWAPB: snprintf(address, sizeof(address), - "MMIO 0x%lx", port->mapbase); + "MMIO 0x%llx", (unsigned long long)port->mapbase); break; default: strlcpy(address, "*unknown*", sizeof(address)); -- cgit v1.2.3-18-g5258