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-rw-r--r--arch/powerpc/kernel/kprobes.c14
-rw-r--r--arch/powerpc/kernel/prom.c70
-rw-r--r--arch/powerpc/platforms/pseries/eeh_event.c8
-rw-r--r--arch/ppc/platforms/mpc866ads_setup.c2
-rw-r--r--drivers/serial/cpm_uart/cpm_uart.h19
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_core.c37
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_cpm1.c2
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_cpm2.c2
-rw-r--r--include/asm-powerpc/uaccess.h19
-rw-r--r--include/asm-ppc/commproc.h1
-rw-r--r--include/asm-ppc/cpm2.h2
-rw-r--r--include/linux/fs_uart_pd.h60
12 files changed, 209 insertions, 27 deletions
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 856ef1a832b9..f78866367b70 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -90,15 +90,15 @@ void __kprobes arch_remove_kprobe(struct kprobe *p)
static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
{
- kprobe_opcode_t insn = *p->ainsn.insn;
-
regs->msr |= MSR_SE;
- /* single step inline if it is a trap variant */
- if (is_trap(insn))
- regs->nip = (unsigned long)p->addr;
- else
- regs->nip = (unsigned long)p->ainsn.insn;
+ /*
+ * On powerpc we should single step on the original
+ * instruction even if the probed insn is a trap
+ * variant as values in regs could play a part in
+ * if the trap is taken or not
+ */
+ regs->nip = (unsigned long)p->ainsn.insn;
}
static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 1cb69e8fb0b1..9a07f97f0712 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -885,6 +885,74 @@ void __init unflatten_device_tree(void)
DBG(" <- unflatten_device_tree()\n");
}
+/*
+ * ibm,pa-features is a per-cpu property that contains a string of
+ * attribute descriptors, each of which has a 2 byte header plus up
+ * to 254 bytes worth of processor attribute bits. First header
+ * byte specifies the number of bytes following the header.
+ * Second header byte is an "attribute-specifier" type, of which
+ * zero is the only currently-defined value.
+ * Implementation: Pass in the byte and bit offset for the feature
+ * that we are interested in. The function will return -1 if the
+ * pa-features property is missing, or a 1/0 to indicate if the feature
+ * is supported/not supported. Note that the bit numbers are
+ * big-endian to match the definition in PAPR.
+ */
+static struct ibm_pa_feature {
+ unsigned long cpu_features; /* CPU_FTR_xxx bit */
+ unsigned int cpu_user_ftrs; /* PPC_FEATURE_xxx bit */
+ unsigned char pabyte; /* byte number in ibm,pa-features */
+ unsigned char pabit; /* bit number (big-endian) */
+ unsigned char invert; /* if 1, pa bit set => clear feature */
+} ibm_pa_features[] __initdata = {
+ {0, PPC_FEATURE_HAS_MMU, 0, 0, 0},
+ {0, PPC_FEATURE_HAS_FPU, 0, 1, 0},
+ {CPU_FTR_SLB, 0, 0, 2, 0},
+ {CPU_FTR_CTRL, 0, 0, 3, 0},
+ {CPU_FTR_NOEXECUTE, 0, 0, 6, 0},
+ {CPU_FTR_NODSISRALIGN, 0, 1, 1, 1},
+ {CPU_FTR_CI_LARGE_PAGE, 0, 1, 2, 0},
+};
+
+static void __init check_cpu_pa_features(unsigned long node)
+{
+ unsigned char *pa_ftrs;
+ unsigned long len, tablelen, i, bit;
+
+ pa_ftrs = of_get_flat_dt_prop(node, "ibm,pa-features", &tablelen);
+ if (pa_ftrs == NULL)
+ return;
+
+ /* find descriptor with type == 0 */
+ for (;;) {
+ if (tablelen < 3)
+ return;
+ len = 2 + pa_ftrs[0];
+ if (tablelen < len)
+ return; /* descriptor 0 not found */
+ if (pa_ftrs[1] == 0)
+ break;
+ tablelen -= len;
+ pa_ftrs += len;
+ }
+
+ /* loop over bits we know about */
+ for (i = 0; i < ARRAY_SIZE(ibm_pa_features); ++i) {
+ struct ibm_pa_feature *fp = &ibm_pa_features[i];
+
+ if (fp->pabyte >= pa_ftrs[0])
+ continue;
+ bit = (pa_ftrs[2 + fp->pabyte] >> (7 - fp->pabit)) & 1;
+ if (bit ^ fp->invert) {
+ cur_cpu_spec->cpu_features |= fp->cpu_features;
+ cur_cpu_spec->cpu_user_features |= fp->cpu_user_ftrs;
+ } else {
+ cur_cpu_spec->cpu_features &= ~fp->cpu_features;
+ cur_cpu_spec->cpu_user_features &= ~fp->cpu_user_ftrs;
+ }
+ }
+}
+
static int __init early_init_dt_scan_cpus(unsigned long node,
const char *uname, int depth,
void *data)
@@ -969,6 +1037,8 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
}
#endif /* CONFIG_ALTIVEC */
+ check_cpu_pa_features(node);
+
#ifdef CONFIG_PPC_PSERIES
if (nthreads > 1)
cur_cpu_spec->cpu_features |= CPU_FTR_SMT;
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index a1bda6f96fd1..40020c65c89e 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -118,7 +118,15 @@ int eeh_send_failure_event (struct device_node *dn,
{
unsigned long flags;
struct eeh_event *event;
+ char *location;
+ if (!mem_init_done) {
+ printk(KERN_ERR "EEH: event during early boot not handled\n");
+ location = (char *) get_property(dn, "ibm,loc-code", NULL);
+ printk(KERN_ERR "EEH: device node = %s\n", dn->full_name);
+ printk(KERN_ERR "EEH: PCI location = %s\n", location);
+ return 1;
+ }
event = kmalloc(sizeof(*event), GFP_ATOMIC);
if (event == NULL) {
printk (KERN_ERR "EEH: out of memory, event not handled\n");
diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c
index 6ce3b842defe..d919dab61347 100644
--- a/arch/ppc/platforms/mpc866ads_setup.c
+++ b/arch/ppc/platforms/mpc866ads_setup.c
@@ -378,7 +378,7 @@ int __init mpc866ads_init(void)
ppc_sys_device_setfunc(MPC8xx_CPM_SMC1, PPC_SYS_FUNC_UART);
#endif
-#ifdef CONFIG_SERIAL_CPM_SMCer
+#ifdef CONFIG_SERIAL_CPM_SMC
ppc_sys_device_enable(MPC8xx_CPM_SMC2);
ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART);
#endif
diff --git a/drivers/serial/cpm_uart/cpm_uart.h b/drivers/serial/cpm_uart/cpm_uart.h
index aa5eb7ddeda9..3b35cb779539 100644
--- a/drivers/serial/cpm_uart/cpm_uart.h
+++ b/drivers/serial/cpm_uart/cpm_uart.h
@@ -5,6 +5,13 @@
*
* Copyright (C) 2004 Freescale Semiconductor, Inc.
*
+ * 2006 (c) MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
*/
#ifndef CPM_UART_H
#define CPM_UART_H
@@ -101,12 +108,13 @@ static inline unsigned long cpu2cpm_addr(void* addr, struct uart_cpm_port *pinfo
int offset;
u32 val = (u32)addr;
/* sane check */
- if ((val >= (u32)pinfo->mem_addr) &&
+ if (likely((val >= (u32)pinfo->mem_addr)) &&
(val<((u32)pinfo->mem_addr + pinfo->mem_size))) {
offset = val - (u32)pinfo->mem_addr;
return pinfo->dma_addr+offset;
}
- printk("%s(): address %x to translate out of range!\n", __FUNCTION__, val);
+ /* something nasty happened */
+ BUG();
return 0;
}
@@ -115,12 +123,13 @@ static inline void *cpm2cpu_addr(unsigned long addr, struct uart_cpm_port *pinfo
int offset;
u32 val = addr;
/* sane check */
- if ((val >= pinfo->dma_addr) &&
- (val<(pinfo->dma_addr + pinfo->mem_size))) {
+ if (likely((val >= pinfo->dma_addr) &&
+ (val<(pinfo->dma_addr + pinfo->mem_size)))) {
offset = val - (u32)pinfo->dma_addr;
return (void*)(pinfo->mem_addr+offset);
}
- printk("%s(): address %x to translate out of range!\n", __FUNCTION__, val);
+ /* something nasty happened */
+ BUG();
return 0;
}
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index ced193bf9e1e..969f94900431 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -12,7 +12,8 @@
*
* Copyright (C) 2004 Freescale Semiconductor, Inc.
* (C) 2004 Intracom, S.A.
- * (C) 2005 MontaVista Software, Inc. by Vitaly Bordug <vbordug@ru.mvista.com>
+ * (C) 2005-2006 MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -81,7 +82,7 @@ early_uart_get_pdev(int index)
}
-void cpm_uart_count(void)
+static void cpm_uart_count(void)
{
cpm_uart_nr = 0;
#ifdef CONFIG_SERIAL_CPM_SMC1
@@ -104,6 +105,21 @@ void cpm_uart_count(void)
#endif
}
+/* Get UART number by its id */
+static int cpm_uart_id2nr(int id)
+{
+ int i;
+ if (id < UART_NR) {
+ for (i=0; i<UART_NR; i++) {
+ if (cpm_uart_port_map[i] == id)
+ return i;
+ }
+ }
+
+ /* not found or invalid argument */
+ return -1;
+}
+
/*
* Check, if transmit buffers are processed
*/
@@ -457,7 +473,11 @@ static void cpm_uart_shutdown(struct uart_port *port)
}
/* Shut them really down and reinit buffer descriptors */
- cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
+ if (IS_SMC(pinfo))
+ cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
+ else
+ cpm_line_cr_cmd(line, CPM_CR_GRA_STOP_TX);
+
cpm_uart_initbd(pinfo);
}
}
@@ -1008,7 +1028,11 @@ int cpm_uart_drv_get_platform_data(struct platform_device *pdev, int is_con)
int line;
u32 mem, pram;
- for (line=0; line<UART_NR && cpm_uart_port_map[line]!=pdata->fs_no; line++);
+ line = cpm_uart_id2nr(idx);
+ if(line < 0) {
+ printk(KERN_ERR"%s(): port %d is not registered", __FUNCTION__, idx);
+ return -1;
+ }
pinfo = (struct uart_cpm_port *) &cpm_uart_ports[idx];
@@ -1241,8 +1265,7 @@ static int cpm_uart_drv_probe(struct device *dev)
}
pdata = pdev->dev.platform_data;
- pr_debug("cpm_uart_drv_probe: Adding CPM UART %d\n",
- cpm_uart_port_map[pdata->fs_no]);
+ pr_debug("cpm_uart_drv_probe: Adding CPM UART %d\n", cpm_uart_id2nr(pdata->fs_no));
if ((ret = cpm_uart_drv_get_platform_data(pdev, 0)))
return ret;
@@ -1261,7 +1284,7 @@ static int cpm_uart_drv_remove(struct device *dev)
struct fs_uart_platform_info *pdata = pdev->dev.platform_data;
pr_debug("cpm_uart_drv_remove: Removing CPM UART %d\n",
- cpm_uart_port_map[pdata->fs_no]);
+ cpm_uart_id2nr(pdata->fs_no));
uart_remove_one_port(&cpm_reg, &cpm_uart_ports[pdata->fs_no].port);
return 0;
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
index a5a30622637a..17406a05ce1f 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -8,6 +8,8 @@
*
* Copyright (C) 2004 Freescale Semiconductor, Inc.
* (C) 2004 Intracom, S.A.
+ * (C) 2006 MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index 7c6b07aeea92..4b2de08f46d0 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -8,6 +8,8 @@
*
* Copyright (C) 2004 Freescale Semiconductor, Inc.
* (C) 2004 Intracom, S.A.
+ * (C) 2006 MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
diff --git a/include/asm-powerpc/uaccess.h b/include/asm-powerpc/uaccess.h
index 3872e924cdd6..d83fc29c2bbf 100644
--- a/include/asm-powerpc/uaccess.h
+++ b/include/asm-powerpc/uaccess.h
@@ -7,6 +7,7 @@
#include <linux/sched.h>
#include <linux/errno.h>
#include <asm/processor.h>
+#include <asm/page.h>
#define VERIFY_READ 0
#define VERIFY_WRITE 1
@@ -179,9 +180,11 @@ do { \
#define __put_user_nocheck(x, ptr, size) \
({ \
long __pu_err; \
- might_sleep(); \
+ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
+ if (!is_kernel_addr((unsigned long)__pu_addr)) \
+ might_sleep(); \
__chk_user_ptr(ptr); \
- __put_user_size((x), (ptr), (size), __pu_err); \
+ __put_user_size((x), __pu_addr, (size), __pu_err); \
__pu_err; \
})
@@ -258,9 +261,11 @@ do { \
({ \
long __gu_err; \
unsigned long __gu_val; \
+ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
__chk_user_ptr(ptr); \
- might_sleep(); \
- __get_user_size(__gu_val, (ptr), (size), __gu_err); \
+ if (!is_kernel_addr((unsigned long)__gu_addr)) \
+ might_sleep(); \
+ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
(x) = (__typeof__(*(ptr)))__gu_val; \
__gu_err; \
})
@@ -270,9 +275,11 @@ do { \
({ \
long __gu_err; \
long long __gu_val; \
+ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
__chk_user_ptr(ptr); \
- might_sleep(); \
- __get_user_size(__gu_val, (ptr), (size), __gu_err); \
+ if (!is_kernel_addr((unsigned long)__gu_addr)) \
+ might_sleep(); \
+ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
(x) = (__typeof__(*(ptr)))__gu_val; \
__gu_err; \
})
diff --git a/include/asm-ppc/commproc.h b/include/asm-ppc/commproc.h
index 973e60908234..31f362966a58 100644
--- a/include/asm-ppc/commproc.h
+++ b/include/asm-ppc/commproc.h
@@ -35,6 +35,7 @@
#define CPM_CR_INIT_TX ((ushort)0x0002)
#define CPM_CR_HUNT_MODE ((ushort)0x0003)
#define CPM_CR_STOP_TX ((ushort)0x0004)
+#define CPM_CR_GRA_STOP_TX ((ushort)0x0005)
#define CPM_CR_RESTART_TX ((ushort)0x0006)
#define CPM_CR_CLOSE_RX_BD ((ushort)0x0007)
#define CPM_CR_SET_GADDR ((ushort)0x0008)
diff --git a/include/asm-ppc/cpm2.h b/include/asm-ppc/cpm2.h
index b638b87cebe3..c70344b91049 100644
--- a/include/asm-ppc/cpm2.h
+++ b/include/asm-ppc/cpm2.h
@@ -69,7 +69,7 @@
#define CPM_CR_INIT_TX ((ushort)0x0002)
#define CPM_CR_HUNT_MODE ((ushort)0x0003)
#define CPM_CR_STOP_TX ((ushort)0x0004)
-#define CPM_CR_GRA_STOP_TX ((ushort)0x0005)
+#define CPM_CR_GRA_STOP_TX ((ushort)0x0005)
#define CPM_CR_RESTART_TX ((ushort)0x0006)
#define CPM_CR_SET_GADDR ((ushort)0x0008)
#define CPM_CR_START_IDMA ((ushort)0x0009)
diff --git a/include/linux/fs_uart_pd.h b/include/linux/fs_uart_pd.h
new file mode 100644
index 000000000000..f5975126b712
--- /dev/null
+++ b/include/linux/fs_uart_pd.h
@@ -0,0 +1,60 @@
+/*
+ * Platform information definitions for the CPM Uart driver.
+ *
+ * 2006 (c) MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef FS_UART_PD_H
+#define FS_UART_PD_H
+
+#include <linux/version.h>
+#include <asm/types.h>
+
+enum fs_uart_id {
+ fsid_smc1_uart,
+ fsid_smc2_uart,
+ fsid_scc1_uart,
+ fsid_scc2_uart,
+ fsid_scc3_uart,
+ fsid_scc4_uart,
+ fs_uart_nr,
+};
+
+static inline int fs_uart_id_scc2fsid(int id)
+{
+ return fsid_scc1_uart + id - 1;
+}
+
+static inline int fs_uart_id_fsid2scc(int id)
+{
+ return id - fsid_scc1_uart + 1;
+}
+
+static inline int fs_uart_id_smc2fsid(int id)
+{
+ return fsid_smc1_uart + id - 1;
+}
+
+static inline int fs_uart_id_fsid2smc(int id)
+{
+ return id - fsid_smc1_uart + 1;
+}
+
+struct fs_uart_platform_info {
+ void(*init_ioports)(void);
+ /* device specific information */
+ int fs_no; /* controller index */
+ u32 uart_clk;
+ u8 tx_num_fifo;
+ u8 tx_buf_size;
+ u8 rx_num_fifo;
+ u8 rx_buf_size;
+ u8 brg;
+};
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 19:28:57 +0100