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-rw-r--r--arch/blackfin/kernel/Makefile7
-rw-r--r--arch/blackfin/kernel/asm-offsets.c7
-rw-r--r--arch/blackfin/kernel/bfin_dma_5xx.c251
-rw-r--r--arch/blackfin/kernel/bfin_gpio.c294
-rw-r--r--arch/blackfin/kernel/bfin_ksyms.c5
-rw-r--r--arch/blackfin/kernel/dma-mapping.c14
-rw-r--r--arch/blackfin/kernel/dualcore_test.c6
-rw-r--r--arch/blackfin/kernel/flat.c55
-rw-r--r--arch/blackfin/kernel/init_task.c1
-rw-r--r--arch/blackfin/kernel/irqchip.c2
-rw-r--r--arch/blackfin/kernel/module.c32
-rw-r--r--arch/blackfin/kernel/process.c77
-rw-r--r--arch/blackfin/kernel/ptrace.c6
-rw-r--r--arch/blackfin/kernel/setup.c373
-rw-r--r--arch/blackfin/kernel/signal.c10
-rw-r--r--arch/blackfin/kernel/sys_bfin.c9
-rw-r--r--arch/blackfin/kernel/time.c4
-rw-r--r--arch/blackfin/kernel/traps.c65
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S12
19 files changed, 522 insertions, 708 deletions
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index f3b7d2f9d49c..f429ebc3a961 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -6,9 +6,12 @@ extra-y := init_task.o vmlinux.lds
obj-y := \
entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \
- sys_bfin.o time.o traps.o irqchip.o dma-mapping.o bfin_gpio.o \
- flat.o
+ sys_bfin.o time.o traps.o irqchip.o dma-mapping.o flat.o \
+ fixed_code.o cplbinit.o cacheinit.o
+obj-$(CONFIG_BF53x) += bfin_gpio.o
+obj-$(CONFIG_BF561) += bfin_gpio.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_BFIN_DMA_5XX) += bfin_dma_5xx.o
obj-$(CONFIG_DUAL_CORE_TEST_MODULE) += dualcore_test.o
+obj-$(CONFIG_KGDB) += kgdb.o
diff --git a/arch/blackfin/kernel/asm-offsets.c b/arch/blackfin/kernel/asm-offsets.c
index e455f4504509..b56b2741cdea 100644
--- a/arch/blackfin/kernel/asm-offsets.c
+++ b/arch/blackfin/kernel/asm-offsets.c
@@ -32,11 +32,10 @@
#include <linux/kernel_stat.h>
#include <linux/ptrace.h>
#include <linux/hardirq.h>
-#include <asm/irq.h>
-#include <asm/thread_info.h>
+#include <linux/irq.h>
+#include <linux/thread_info.h>
-#define DEFINE(sym, val) \
- asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+#define DEFINE(sym, val) asm volatile("\n->" #sym " %0 " #val : : "i" (val))
int main(void)
{
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index 069a896a8f26..7cf02f02a1db 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -34,6 +34,7 @@
#include <linux/kernel.h>
#include <linux/param.h>
+#include <asm/blackfin.h>
#include <asm/dma.h>
#include <asm/cacheflush.h>
@@ -45,67 +46,6 @@
***************************************************************************/
static struct dma_channel dma_ch[MAX_BLACKFIN_DMA_CHANNEL];
-#if defined (CONFIG_BF561)
-static struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
- (struct dma_register *) DMA1_0_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_1_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_2_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_3_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_4_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_5_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_6_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_7_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_8_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_9_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_10_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_11_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_0_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_1_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_2_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_3_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_4_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_5_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_6_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_7_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_8_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_9_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_10_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_11_NEXT_DESC_PTR,
- (struct dma_register *) MDMA1_D0_NEXT_DESC_PTR,
- (struct dma_register *) MDMA1_S0_NEXT_DESC_PTR,
- (struct dma_register *) MDMA1_D1_NEXT_DESC_PTR,
- (struct dma_register *) MDMA1_S1_NEXT_DESC_PTR,
- (struct dma_register *) MDMA2_D0_NEXT_DESC_PTR,
- (struct dma_register *) MDMA2_S0_NEXT_DESC_PTR,
- (struct dma_register *) MDMA2_D1_NEXT_DESC_PTR,
- (struct dma_register *) MDMA2_S1_NEXT_DESC_PTR,
- (struct dma_register *) IMDMA_D0_NEXT_DESC_PTR,
- (struct dma_register *) IMDMA_S0_NEXT_DESC_PTR,
- (struct dma_register *) IMDMA_D1_NEXT_DESC_PTR,
- (struct dma_register *) IMDMA_S1_NEXT_DESC_PTR,
-};
-#else
-static struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
- (struct dma_register *) DMA0_NEXT_DESC_PTR,
- (struct dma_register *) DMA1_NEXT_DESC_PTR,
- (struct dma_register *) DMA2_NEXT_DESC_PTR,
- (struct dma_register *) DMA3_NEXT_DESC_PTR,
- (struct dma_register *) DMA4_NEXT_DESC_PTR,
- (struct dma_register *) DMA5_NEXT_DESC_PTR,
- (struct dma_register *) DMA6_NEXT_DESC_PTR,
- (struct dma_register *) DMA7_NEXT_DESC_PTR,
-#if (defined(CONFIG_BF537) || defined(CONFIG_BF534) || defined(CONFIG_BF536))
- (struct dma_register *) DMA8_NEXT_DESC_PTR,
- (struct dma_register *) DMA9_NEXT_DESC_PTR,
- (struct dma_register *) DMA10_NEXT_DESC_PTR,
- (struct dma_register *) DMA11_NEXT_DESC_PTR,
-#endif
- (struct dma_register *) MDMA_D0_NEXT_DESC_PTR,
- (struct dma_register *) MDMA_S0_NEXT_DESC_PTR,
- (struct dma_register *) MDMA_D1_NEXT_DESC_PTR,
- (struct dma_register *) MDMA_S1_NEXT_DESC_PTR,
-};
-#endif
/*------------------------------------------------------------------------------
* Set the Buffer Clear bit in the Configuration register of specific DMA
@@ -138,149 +78,6 @@ static int __init blackfin_dma_init(void)
arch_initcall(blackfin_dma_init);
-/*
- * Form the channel find the irq number for that channel.
- */
-#if !defined(CONFIG_BF561)
-
-static int bf533_channel2irq(unsigned int channel)
-{
- int ret_irq = -1;
-
- switch (channel) {
- case CH_PPI:
- ret_irq = IRQ_PPI;
- break;
-
-#if (defined(CONFIG_BF537) || defined(CONFIG_BF534) || defined(CONFIG_BF536))
- case CH_EMAC_RX:
- ret_irq = IRQ_MAC_RX;
- break;
-
- case CH_EMAC_TX:
- ret_irq = IRQ_MAC_TX;
- break;
-
- case CH_UART1_RX:
- ret_irq = IRQ_UART1_RX;
- break;
-
- case CH_UART1_TX:
- ret_irq = IRQ_UART1_TX;
- break;
-#endif
-
- case CH_SPORT0_RX:
- ret_irq = IRQ_SPORT0_RX;
- break;
-
- case CH_SPORT0_TX:
- ret_irq = IRQ_SPORT0_TX;
- break;
-
- case CH_SPORT1_RX:
- ret_irq = IRQ_SPORT1_RX;
- break;
-
- case CH_SPORT1_TX:
- ret_irq = IRQ_SPORT1_TX;
- break;
-
- case CH_SPI:
- ret_irq = IRQ_SPI;
- break;
-
- case CH_UART_RX:
- ret_irq = IRQ_UART_RX;
- break;
-
- case CH_UART_TX:
- ret_irq = IRQ_UART_TX;
- break;
-
- case CH_MEM_STREAM0_SRC:
- case CH_MEM_STREAM0_DEST:
- ret_irq = IRQ_MEM_DMA0;
- break;
-
- case CH_MEM_STREAM1_SRC:
- case CH_MEM_STREAM1_DEST:
- ret_irq = IRQ_MEM_DMA1;
- break;
- }
- return ret_irq;
-}
-
-# define channel2irq(channel) bf533_channel2irq(channel)
-
-#else
-
-static int bf561_channel2irq(unsigned int channel)
-{
- int ret_irq = -1;
-
- switch (channel) {
- case CH_PPI0:
- ret_irq = IRQ_PPI0;
- break;
- case CH_PPI1:
- ret_irq = IRQ_PPI1;
- break;
- case CH_SPORT0_RX:
- ret_irq = IRQ_SPORT0_RX;
- break;
- case CH_SPORT0_TX:
- ret_irq = IRQ_SPORT0_TX;
- break;
- case CH_SPORT1_RX:
- ret_irq = IRQ_SPORT1_RX;
- break;
- case CH_SPORT1_TX:
- ret_irq = IRQ_SPORT1_TX;
- break;
- case CH_SPI:
- ret_irq = IRQ_SPI;
- break;
- case CH_UART_RX:
- ret_irq = IRQ_UART_RX;
- break;
- case CH_UART_TX:
- ret_irq = IRQ_UART_TX;
- break;
-
- case CH_MEM_STREAM0_SRC:
- case CH_MEM_STREAM0_DEST:
- ret_irq = IRQ_MEM_DMA0;
- break;
- case CH_MEM_STREAM1_SRC:
- case CH_MEM_STREAM1_DEST:
- ret_irq = IRQ_MEM_DMA1;
- break;
- case CH_MEM_STREAM2_SRC:
- case CH_MEM_STREAM2_DEST:
- ret_irq = IRQ_MEM_DMA2;
- break;
- case CH_MEM_STREAM3_SRC:
- case CH_MEM_STREAM3_DEST:
- ret_irq = IRQ_MEM_DMA3;
- break;
-
- case CH_IMEM_STREAM0_SRC:
- case CH_IMEM_STREAM0_DEST:
- ret_irq = IRQ_IMEM_DMA0;
- break;
- case CH_IMEM_STREAM1_SRC:
- case CH_IMEM_STREAM1_DEST:
- ret_irq = IRQ_IMEM_DMA1;
- break;
- }
- return ret_irq;
-}
-
-# define channel2irq(channel) bf561_channel2irq(channel)
-
-#endif
-
/*------------------------------------------------------------------------------
* Request the specific DMA channel from the system.
*-----------------------------------------------------------------------------*/
@@ -535,7 +332,7 @@ set_bfin_dma_config(char direction, char flow_mode,
}
EXPORT_SYMBOL(set_bfin_dma_config);
-void set_dma_sg(unsigned int channel, struct dmasg * sg, int nr_sg)
+void set_dma_sg(unsigned int channel, struct dmasg *sg, int nr_sg)
{
BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE
&& channel < MAX_BLACKFIN_DMA_CHANNEL));
@@ -604,7 +401,7 @@ static void *__dma_memcpy(void *dest, const void *src, size_t size)
if (size <= 0)
return NULL;
-
+
local_irq_save(flags);
if ((unsigned long)src < memory_end)
@@ -748,7 +545,6 @@ void *dma_memcpy(void *dest, const void *src, size_t size)
addr = __dma_memcpy(dest+bulk, src+bulk, rest);
return addr;
}
-
EXPORT_SYMBOL(dma_memcpy);
void *safe_dma_memcpy(void *dest, const void *src, size_t size)
@@ -761,14 +557,13 @@ EXPORT_SYMBOL(safe_dma_memcpy);
void dma_outsb(void __iomem *addr, const void *buf, unsigned short len)
{
-
unsigned long flags;
-
+
local_irq_save(flags);
-
- blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len);
- bfin_write_MDMA_D0_START_ADDR(addr);
+ blackfin_dcache_flush_range((unsigned int)buf, (unsigned int)(buf) + len);
+
+ bfin_write_MDMA_D0_START_ADDR(addr);
bfin_write_MDMA_D0_X_COUNT(len);
bfin_write_MDMA_D0_X_MODIFY(0);
bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
@@ -796,9 +591,9 @@ EXPORT_SYMBOL(dma_outsb);
void dma_insb(const void __iomem *addr, void *buf, unsigned short len)
{
unsigned long flags;
-
+
local_irq_save(flags);
- bfin_write_MDMA_D0_START_ADDR(buf);
+ bfin_write_MDMA_D0_START_ADDR(buf);
bfin_write_MDMA_D0_X_COUNT(len);
bfin_write_MDMA_D0_X_MODIFY(1);
bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
@@ -827,12 +622,12 @@ EXPORT_SYMBOL(dma_insb);
void dma_outsw(void __iomem *addr, const void *buf, unsigned short len)
{
unsigned long flags;
-
+
local_irq_save(flags);
-
- blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len);
- bfin_write_MDMA_D0_START_ADDR(addr);
+ blackfin_dcache_flush_range((unsigned int)buf, (unsigned int)(buf) + len);
+
+ bfin_write_MDMA_D0_START_ADDR(addr);
bfin_write_MDMA_D0_X_COUNT(len);
bfin_write_MDMA_D0_X_MODIFY(0);
bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
@@ -859,10 +654,10 @@ EXPORT_SYMBOL(dma_outsw);
void dma_insw(const void __iomem *addr, void *buf, unsigned short len)
{
unsigned long flags;
-
+
local_irq_save(flags);
-
- bfin_write_MDMA_D0_START_ADDR(buf);
+
+ bfin_write_MDMA_D0_START_ADDR(buf);
bfin_write_MDMA_D0_X_COUNT(len);
bfin_write_MDMA_D0_X_MODIFY(2);
bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
@@ -891,12 +686,12 @@ EXPORT_SYMBOL(dma_insw);
void dma_outsl(void __iomem *addr, const void *buf, unsigned short len)
{
unsigned long flags;
-
+
local_irq_save(flags);
-
- blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len);
- bfin_write_MDMA_D0_START_ADDR(addr);
+ blackfin_dcache_flush_range((unsigned int)buf, (unsigned int)(buf) + len);
+
+ bfin_write_MDMA_D0_START_ADDR(addr);
bfin_write_MDMA_D0_X_COUNT(len);
bfin_write_MDMA_D0_X_MODIFY(0);
bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
@@ -923,10 +718,10 @@ EXPORT_SYMBOL(dma_outsl);
void dma_insl(const void __iomem *addr, void *buf, unsigned short len)
{
unsigned long flags;
-
+
local_irq_save(flags);
-
- bfin_write_MDMA_D0_START_ADDR(buf);
+
+ bfin_write_MDMA_D0_START_ADDR(buf);
bfin_write_MDMA_D0_X_COUNT(len);
bfin_write_MDMA_D0_X_MODIFY(4);
bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index bb1f4fb2467c..5d488ef965ce 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -84,6 +84,7 @@
#include <linux/err.h>
#include <asm/blackfin.h>
#include <asm/gpio.h>
+#include <asm/portmux.h>
#include <linux/irq.h>
#ifdef BF533_FAMILY
@@ -115,7 +116,11 @@ static struct gpio_port_t *gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
};
#endif
-static unsigned short reserved_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
+static unsigned short reserved_gpio_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
+static unsigned short reserved_peri_map[gpio_bank(MAX_BLACKFIN_GPIOS + 16)];
+char *str_ident = NULL;
+
+#define RESOURCE_LABEL_SIZE 16
#ifdef CONFIG_PM
static unsigned short wakeup_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
@@ -143,26 +148,104 @@ inline int check_gpio(unsigned short gpio)
return 0;
}
+static void set_label(unsigned short ident, const char *label)
+{
+
+ if (label && str_ident) {
+ strncpy(str_ident + ident * RESOURCE_LABEL_SIZE, label,
+ RESOURCE_LABEL_SIZE);
+ str_ident[ident * RESOURCE_LABEL_SIZE +
+ RESOURCE_LABEL_SIZE - 1] = 0;
+ }
+}
+
+static char *get_label(unsigned short ident)
+{
+ if (!str_ident)
+ return "UNKNOWN";
+
+ return (str_ident[ident * RESOURCE_LABEL_SIZE] ?
+ (str_ident + ident * RESOURCE_LABEL_SIZE) : "UNKNOWN");
+}
+
+static int cmp_label(unsigned short ident, const char *label)
+{
+ if (label && str_ident)
+ return strncmp(str_ident + ident * RESOURCE_LABEL_SIZE,
+ label, strlen(label));
+ else
+ return -EINVAL;
+}
+
#ifdef BF537_FAMILY
static void port_setup(unsigned short gpio, unsigned short usage)
{
- if (usage == GPIO_USAGE) {
- if (*port_fer[gpio_bank(gpio)] & gpio_bit(gpio))
- printk(KERN_WARNING "bfin-gpio: Possible Conflict with Peripheral "
- "usage and GPIO %d detected!\n", gpio);
- *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
- } else
- *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
- SSYNC();
+ if (!check_gpio(gpio)) {
+ if (usage == GPIO_USAGE) {
+ *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
+ } else
+ *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
+ SSYNC();
+ }
}
#else
# define port_setup(...) do { } while (0)
#endif
+#ifdef BF537_FAMILY
+
+#define PMUX_LUT_RES 0
+#define PMUX_LUT_OFFSET 1
+#define PMUX_LUT_ENTRIES 41
+#define PMUX_LUT_SIZE 2
+
+static unsigned short port_mux_lut[PMUX_LUT_ENTRIES][PMUX_LUT_SIZE] = {
+ {P_PPI0_D13, 11}, {P_PPI0_D14, 11}, {P_PPI0_D15, 11},
+ {P_SPORT1_TFS, 11}, {P_SPORT1_TSCLK, 11}, {P_SPORT1_DTPRI, 11},
+ {P_PPI0_D10, 10}, {P_PPI0_D11, 10}, {P_PPI0_D12, 10},
+ {P_SPORT1_RSCLK, 10}, {P_SPORT1_RFS, 10}, {P_SPORT1_DRPRI, 10},
+ {P_PPI0_D8, 9}, {P_PPI0_D9, 9}, {P_SPORT1_DRSEC, 9},
+ {P_SPORT1_DTSEC, 9}, {P_TMR2, 8}, {P_PPI0_FS3, 8}, {P_TMR3, 7},
+ {P_SPI0_SSEL4, 7}, {P_TMR4, 6}, {P_SPI0_SSEL5, 6}, {P_TMR5, 5},
+ {P_SPI0_SSEL6, 5}, {P_UART1_RX, 4}, {P_UART1_TX, 4}, {P_TMR6, 4},
+ {P_TMR7, 4}, {P_UART0_RX, 3}, {P_UART0_TX, 3}, {P_DMAR0, 3},
+ {P_DMAR1, 3}, {P_SPORT0_DTSEC, 1}, {P_SPORT0_DRSEC, 1},
+ {P_CAN0_RX, 1}, {P_CAN0_TX, 1}, {P_SPI0_SSEL7, 1},
+ {P_SPORT0_TFS, 0}, {P_SPORT0_DTPRI, 0}, {P_SPI0_SSEL2, 0},
+ {P_SPI0_SSEL3, 0}
+};
+
+static void portmux_setup(unsigned short per, unsigned short function)
+{
+ u16 y, muxreg, offset;
+
+ for (y = 0; y < PMUX_LUT_ENTRIES; y++) {
+ if (port_mux_lut[y][PMUX_LUT_RES] == per) {
+
+ /* SET PORTMUX REG */
+
+ offset = port_mux_lut[y][PMUX_LUT_OFFSET];
+ muxreg = bfin_read_PORT_MUX();
+
+ if (offset != 1) {
+ muxreg &= ~(1 << offset);
+ } else {
+ muxreg &= ~(3 << 1);
+ }
+
+ muxreg |= (function << offset);
+ bfin_write_PORT_MUX(muxreg);
+ }
+ }
+}
+
+#else
+# define portmux_setup(...) do { } while (0)
+#endif
static void default_gpio(unsigned short gpio)
{
- unsigned short bank,bitmask;
+ unsigned short bank, bitmask;
bank = gpio_bank(gpio);
bitmask = gpio_bit(gpio);
@@ -179,22 +262,15 @@ static void default_gpio(unsigned short gpio)
static int __init bfin_gpio_init(void)
{
- int i;
-
- printk(KERN_INFO "Blackfin GPIO Controller\n");
- for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE)
- reserved_map[gpio_bank(i)] = 0;
+ str_ident = kzalloc(RESOURCE_LABEL_SIZE * 256, GFP_KERNEL);
+ if (!str_ident)
+ return -ENOMEM;
-#if defined(BF537_FAMILY) && (defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE))
-# if defined(CONFIG_BFIN_MAC_RMII)
- reserved_map[gpio_bank(PORT_H)] = 0xC373;
-# else
- reserved_map[gpio_bank(PORT_H)] = 0xFFFF;
-# endif
-#endif
+ printk(KERN_INFO "Blackfin GPIO Controller\n");
return 0;
+
}
arch_initcall(bfin_gpio_init);
@@ -223,7 +299,7 @@ arch_initcall(bfin_gpio_init);
void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \
{ \
unsigned long flags; \
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
local_irq_save(flags); \
if (arg) \
gpio_bankb[gpio_bank(gpio)]->name |= gpio_bit(gpio); \
@@ -243,7 +319,7 @@ SET_GPIO(both)
#define SET_GPIO_SC(name) \
void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \
{ \
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
if (arg) \
gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \
else \
@@ -258,7 +334,7 @@ SET_GPIO_SC(maskb)
void set_gpio_data(unsigned short gpio, unsigned short arg)
{
unsigned long flags;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
if (arg)
gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
@@ -277,7 +353,7 @@ SET_GPIO_SC(data)
void set_gpio_toggle(unsigned short gpio)
{
unsigned long flags;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
bfin_read_CHIPID();
@@ -286,7 +362,7 @@ void set_gpio_toggle(unsigned short gpio)
#else
void set_gpio_toggle(unsigned short gpio)
{
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
}
#endif
@@ -350,7 +426,7 @@ unsigned short get_gpio_data(unsigned short gpio)
{
unsigned long flags;
unsigned short ret;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
ret = 0x01 & (gpio_bankb[gpio_bank(gpio)]->data >> gpio_sub_n(gpio));
bfin_read_CHIPID();
@@ -478,7 +554,7 @@ u32 gpio_pm_setup(void)
u32 sic_iwr = 0;
u16 bank, mask, i, gpio;
- for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE) {
+ for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
mask = wakeup_map[gpio_bank(i)];
bank = gpio_bank(i);
@@ -494,13 +570,14 @@ u32 gpio_pm_setup(void)
gpio_bank_saved[bank].dir = gpio_bankb[bank]->dir;
gpio_bank_saved[bank].edge = gpio_bankb[bank]->edge;
gpio_bank_saved[bank].both = gpio_bankb[bank]->both;
- gpio_bank_saved[bank].reserved = reserved_map[bank];
+ gpio_bank_saved[bank].reserved =
+ reserved_gpio_map[bank];
gpio = i;
while (mask) {
if (mask & 1) {
- reserved_map[gpio_bank(gpio)] |=
+ reserved_gpio_map[gpio_bank(gpio)] |=
gpio_bit(gpio);
bfin_gpio_wakeup_type(gpio,
wakeup_flags_map[gpio]);
@@ -522,12 +599,11 @@ u32 gpio_pm_setup(void)
return IWR_ENABLE_ALL;
}
-
void gpio_pm_restore(void)
{
u16 bank, mask, i;
- for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE) {
+ for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
mask = wakeup_map[gpio_bank(i)];
bank = gpio_bank(i);
@@ -541,7 +617,8 @@ void gpio_pm_restore(void)
gpio_bankb[bank]->edge = gpio_bank_saved[bank].edge;
gpio_bankb[bank]->both = gpio_bank_saved[bank].both;
- reserved_map[bank] = gpio_bank_saved[bank].reserved;
+ reserved_gpio_map[bank] =
+ gpio_bank_saved[bank].reserved;
}
@@ -551,6 +628,141 @@ void gpio_pm_restore(void)
#endif
+
+
+
+int peripheral_request(unsigned short per, const char *label)
+{
+ unsigned long flags;
+ unsigned short ident = P_IDENT(per);
+
+ /*
+ * Don't cares are pins with only one dedicated function
+ */
+
+ if (per & P_DONTCARE)
+ return 0;
+
+ if (!(per & P_DEFINED))
+ return -ENODEV;
+
+ local_irq_save(flags);
+
+ if (!check_gpio(ident)) {
+
+ if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) {
+ printk(KERN_ERR
+ "%s: Peripheral %d is already reserved as GPIO by %s !\n",
+ __FUNCTION__, ident, get_label(ident));
+ dump_stack();
+ local_irq_restore(flags);
+ return -EBUSY;
+ }
+
+ }
+
+ if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) {
+
+ /*
+ * Pin functions like AMC address strobes my
+ * be requested and used by several drivers
+ */
+
+ if (!(per & P_MAYSHARE)) {
+
+ /*
+ * Allow that the identical pin function can
+ * be requested from the same driver twice
+ */
+
+ if (cmp_label(ident, label) == 0)
+ goto anyway;
+
+ printk(KERN_ERR
+ "%s: Peripheral %d function %d is already"
+ "reserved by %s !\n",
+ __FUNCTION__, ident, P_FUNCT2MUX(per),
+ get_label(ident));
+ dump_stack();
+ local_irq_restore(flags);
+ return -EBUSY;
+ }
+
+ }
+
+anyway:
+
+
+ portmux_setup(per, P_FUNCT2MUX(per));
+
+ port_setup(ident, PERIPHERAL_USAGE);
+
+ reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident);
+ local_irq_restore(flags);
+ set_label(ident, label);
+
+ return 0;
+}
+EXPORT_SYMBOL(peripheral_request);
+
+int peripheral_request_list(unsigned short per[], const char *label)
+{
+ u16 cnt;
+ int ret;
+
+ for (cnt = 0; per[cnt] != 0; cnt++) {
+ ret = peripheral_request(per[cnt], label);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(peripheral_request_list);
+
+void peripheral_free(unsigned short per)
+{
+ unsigned long flags;
+ unsigned short ident = P_IDENT(per);
+
+ if (per & P_DONTCARE)
+ return;
+
+ if (!(per & P_DEFINED))
+ return;
+
+ if (check_gpio(ident) < 0)
+ return;
+
+ local_irq_save(flags);
+
+ if (unlikely(!(reserved_peri_map[gpio_bank(ident)]
+ & gpio_bit(ident)))) {
+ local_irq_restore(flags);
+ return;
+ }
+
+ if (!(per & P_MAYSHARE)) {
+ port_setup(ident, GPIO_USAGE);
+ }
+
+ reserved_peri_map[gpio_bank(ident)] &= ~gpio_bit(ident);
+
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(peripheral_free);
+
+void peripheral_free_list(unsigned short per[])
+{
+ u16 cnt;
+
+ for (cnt = 0; per[cnt] != 0; cnt++) {
+ peripheral_free(per[cnt]);
+ }
+
+}
+EXPORT_SYMBOL(peripheral_free_list);
+
/***********************************************************
*
* FUNCTIONS: Blackfin GPIO Driver
@@ -575,13 +787,13 @@ int gpio_request(unsigned short gpio, const char *label)
local_irq_save(flags);
- if (unlikely(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+ if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved!\n", gpio);
dump_stack();
local_irq_restore(flags);
return -EBUSY;
}
- reserved_map[gpio_bank(gpio)] |= gpio_bit(gpio);
+ reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio);
local_irq_restore(flags);
@@ -591,7 +803,6 @@ int gpio_request(unsigned short gpio, const char *label)
}
EXPORT_SYMBOL(gpio_request);
-
void gpio_free(unsigned short gpio)
{
unsigned long flags;
@@ -601,7 +812,7 @@ void gpio_free(unsigned short gpio)
local_irq_save(flags);
- if (unlikely(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
+ if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio);
dump_stack();
local_irq_restore(flags);
@@ -610,18 +821,17 @@ void gpio_free(unsigned short gpio)
default_gpio(gpio);
- reserved_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
+ reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
local_irq_restore(flags);
}
EXPORT_SYMBOL(gpio_free);
-
void gpio_direction_input(unsigned short gpio)
{
unsigned long flags;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
gpio_bankb[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
@@ -634,7 +844,7 @@ void gpio_direction_output(unsigned short gpio)
{
unsigned long flags;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
gpio_bankb[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c
index f64ecb638fab..70455949cfd2 100644
--- a/arch/blackfin/kernel/bfin_ksyms.c
+++ b/arch/blackfin/kernel/bfin_ksyms.c
@@ -28,10 +28,11 @@
*/
#include <linux/module.h>
-#include <asm/irq.h>
+#include <linux/irq.h>
+#include <linux/uaccess.h>
+
#include <asm/checksum.h>
#include <asm/cacheflush.h>
-#include <asm/uaccess.h>
/* platform dependent support */
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index 539eb24e062f..94d7b119b71e 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -34,8 +34,8 @@
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/io.h>
#include <asm/cacheflush.h>
-#include <asm/io.h>
#include <asm/bfin-global.h>
static spinlock_t dma_page_lock;
@@ -159,10 +159,14 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
BUG_ON(direction == DMA_NONE);
- for (i = 0; i < nents; i++)
- invalidate_dcache_range(sg_dma_address(&sg[i]),
- sg_dma_address(&sg[i]) +
- sg_dma_len(&sg[i]));
+ for (i = 0; i < nents; i++, sg++) {
+ sg->dma_address = (dma_addr_t)(page_address(sg->page) +
+ sg->offset);
+
+ invalidate_dcache_range(sg_dma_address(sg),
+ sg_dma_address(sg) +
+ sg_dma_len(sg));
+ }
return nents;
}
diff --git a/arch/blackfin/kernel/dualcore_test.c b/arch/blackfin/kernel/dualcore_test.c
index 8b89c99f9dfa..0fcba74840b7 100644
--- a/arch/blackfin/kernel/dualcore_test.c
+++ b/arch/blackfin/kernel/dualcore_test.c
@@ -30,19 +30,19 @@
#include <linux/init.h>
#include <linux/module.h>
-static int *testarg = (int*)0xfeb00000;
+static int *testarg = (int *)0xfeb00000;
static int test_init(void)
{
*testarg = 1;
- printk("Dual core test module inserted: set testarg = [%d]\n @ [%p]\n",
+ printk(KERN_INFO "Dual core test module inserted: set testarg = [%d]\n @ [%p]\n",
*testarg, testarg);
return 0;
}
static void test_exit(void)
{
- printk("Dual core test module removed: testarg = [%d]\n", *testarg);
+ printk(KERN_INFO "Dual core test module removed: testarg = [%d]\n", *testarg);
}
module_init(test_init);
diff --git a/arch/blackfin/kernel/flat.c b/arch/blackfin/kernel/flat.c
index a92587b628b5..d188b2430536 100644
--- a/arch/blackfin/kernel/flat.c
+++ b/arch/blackfin/kernel/flat.c
@@ -36,24 +36,22 @@ unsigned long bfin_get_addr_from_rp(unsigned long *ptr,
unsigned long val;
switch (type) {
- case FLAT_BFIN_RELOC_TYPE_16_BIT:
- case FLAT_BFIN_RELOC_TYPE_16H_BIT:
- usptr = (unsigned short *)ptr;
- pr_debug("*usptr = %x", get_unaligned(usptr));
- val = get_unaligned(usptr);
- val += *persistent;
- break;
+ case FLAT_BFIN_RELOC_TYPE_16_BIT:
+ case FLAT_BFIN_RELOC_TYPE_16H_BIT:
+ usptr = (unsigned short *)ptr;
+ pr_debug("*usptr = %x", get_unaligned(usptr));
+ val = get_unaligned(usptr);
+ val += *persistent;
+ break;
- case FLAT_BFIN_RELOC_TYPE_32_BIT:
- pr_debug("*ptr = %lx", get_unaligned(ptr));
- val = get_unaligned(ptr);
- break;
+ case FLAT_BFIN_RELOC_TYPE_32_BIT:
+ pr_debug("*ptr = %lx", get_unaligned(ptr));
+ val = get_unaligned(ptr);
+ break;
- default:
- pr_debug("BINFMT_FLAT: Unknown relocation type %x\n",
- type);
-
- return 0;
+ default:
+ pr_debug("BINFMT_FLAT: Unknown relocation type %x\n", type);
+ return 0;
}
/*
@@ -81,21 +79,20 @@ void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
int type = (relval >> 26) & 7;
switch (type) {
- case FLAT_BFIN_RELOC_TYPE_16_BIT:
- put_unaligned(addr, usptr);
- pr_debug("new value %x at %p", get_unaligned(usptr),
- usptr);
- break;
+ case FLAT_BFIN_RELOC_TYPE_16_BIT:
+ put_unaligned(addr, usptr);
+ pr_debug("new value %x at %p", get_unaligned(usptr), usptr);
+ break;
- case FLAT_BFIN_RELOC_TYPE_16H_BIT:
- put_unaligned(addr >> 16, usptr);
- pr_debug("new value %x", get_unaligned(usptr));
- break;
+ case FLAT_BFIN_RELOC_TYPE_16H_BIT:
+ put_unaligned(addr >> 16, usptr);
+ pr_debug("new value %x", get_unaligned(usptr));
+ break;
- case FLAT_BFIN_RELOC_TYPE_32_BIT:
- put_unaligned(addr, ptr);
- pr_debug("new ptr =%lx", get_unaligned(ptr));
- break;
+ case FLAT_BFIN_RELOC_TYPE_32_BIT:
+ put_unaligned(addr, ptr);
+ pr_debug("new ptr =%lx", get_unaligned(ptr));
+ break;
}
}
EXPORT_SYMBOL(bfin_put_addr_at_rp);
diff --git a/arch/blackfin/kernel/init_task.c b/arch/blackfin/kernel/init_task.c
index b45188f8512e..673c860ffc23 100644
--- a/arch/blackfin/kernel/init_task.c
+++ b/arch/blackfin/kernel/init_task.c
@@ -31,6 +31,7 @@
#include <linux/module.h>
#include <linux/init_task.h>
#include <linux/mqueue.h>
+#include <linux/fs.h>
static struct fs_struct init_fs = INIT_FS;
static struct files_struct init_files = INIT_FILES;
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 80996a1a94ca..1fc001c7abda 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -82,7 +82,7 @@ int show_interrupts(struct seq_file *p, void *v)
seq_printf(p, ", %s", action->name);
seq_putc(p, '\n');
- unlock:
+ unlock:
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
} else if (i == NR_IRQS) {
seq_printf(p, "Err: %10lu\n", irq_err_count);
diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c
index 372f756f1ad9..8b9fe29d03f4 100644
--- a/arch/blackfin/kernel/module.c
+++ b/arch/blackfin/kernel/module.c
@@ -165,8 +165,8 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs,
for (s = sechdrs; s < sechdrs_end; ++s) {
if ((strcmp(".l1.text", secstrings + s->sh_name) == 0) ||
- ((strcmp(".text", secstrings + s->sh_name)==0) &&
- (hdr->e_flags & FLG_CODE_IN_L1) && (s->sh_size > 0))) {
+ ((strcmp(".text", secstrings + s->sh_name) == 0) &&
+ (hdr->e_flags & FLG_CODE_IN_L1) && (s->sh_size > 0))) {
mod->arch.text_l1 = s;
dest = l1_inst_sram_alloc(s->sh_size);
if (dest == NULL) {
@@ -179,9 +179,9 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs,
s->sh_flags &= ~SHF_ALLOC;
s->sh_addr = (unsigned long)dest;
}
- if ((strcmp(".l1.data", secstrings + s->sh_name) == 0)||
- ((strcmp(".data", secstrings + s->sh_name)==0) &&
- (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) {
+ if ((strcmp(".l1.data", secstrings + s->sh_name) == 0) ||
+ ((strcmp(".data", secstrings + s->sh_name) == 0) &&
+ (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) {
mod->arch.data_a_l1 = s;
dest = l1_data_sram_alloc(s->sh_size);
if (dest == NULL) {
@@ -195,8 +195,8 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs,
s->sh_addr = (unsigned long)dest;
}
if (strcmp(".l1.bss", secstrings + s->sh_name) == 0 ||
- ((strcmp(".bss", secstrings + s->sh_name)==0) &&
- (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) {
+ ((strcmp(".bss", secstrings + s->sh_name) == 0) &&
+ (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) {
mod->arch.bss_a_l1 = s;
dest = l1_data_sram_alloc(s->sh_size);
if (dest == NULL) {
@@ -326,7 +326,7 @@ apply_relocate_add(Elf_Shdr * sechdrs, const char *strtab,
pr_debug("before %x after %x\n", *location16,
(value & 0xffff));
tmp = (value & 0xffff);
- if((unsigned long)location16 >= L1_CODE_START) {
+ if ((unsigned long)location16 >= L1_CODE_START) {
dma_memcpy(location16, &tmp, 2);
} else
*location16 = tmp;
@@ -335,7 +335,7 @@ apply_relocate_add(Elf_Shdr * sechdrs, const char *strtab,
pr_debug("before %x after %x\n", *location16,
((value >> 16) & 0xffff));
tmp = ((value >> 16) & 0xffff);
- if((unsigned long)location16 >= L1_CODE_START) {
+ if ((unsigned long)location16 >= L1_CODE_START) {
dma_memcpy(location16, &tmp, 2);
} else
*location16 = tmp;
@@ -404,8 +404,8 @@ module_finalize(const Elf_Ehdr * hdr,
continue;
if ((sechdrs[i].sh_type == SHT_RELA) &&
- ((strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0)||
- ((strcmp(".rela.text", secstrings + sechdrs[i].sh_name) == 0) &&
+ ((strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0) ||
+ ((strcmp(".rela.text", secstrings + sechdrs[i].sh_name) == 0) &&
(hdr->e_flags & FLG_CODE_IN_L1)))) {
apply_relocate_add((Elf_Shdr *) sechdrs, strtab,
symindex, i, mod);
@@ -417,13 +417,13 @@ module_finalize(const Elf_Ehdr * hdr,
void module_arch_cleanup(struct module *mod)
{
if ((mod->arch.text_l1) && (mod->arch.text_l1->sh_addr))
- l1_inst_sram_free((void*)mod->arch.text_l1->sh_addr);
+ l1_inst_sram_free((void *)mod->arch.text_l1->sh_addr);
if ((mod->arch.data_a_l1) && (mod->arch.data_a_l1->sh_addr))
- l1_data_sram_free((void*)mod->arch.data_a_l1->sh_addr);
+ l1_data_sram_free((void *)mod->arch.data_a_l1->sh_addr);
if ((mod->arch.bss_a_l1) && (mod->arch.bss_a_l1->sh_addr))
- l1_data_sram_free((void*)mod->arch.bss_a_l1->sh_addr);
+ l1_data_sram_free((void *)mod->arch.bss_a_l1->sh_addr);
if ((mod->arch.data_b_l1) && (mod->arch.data_b_l1->sh_addr))
- l1_data_B_sram_free((void*)mod->arch.data_b_l1->sh_addr);
+ l1_data_B_sram_free((void *)mod->arch.data_b_l1->sh_addr);
if ((mod->arch.bss_b_l1) && (mod->arch.bss_b_l1->sh_addr))
- l1_data_B_sram_free((void*)mod->arch.bss_b_l1->sh_addr);
+ l1_data_B_sram_free((void *)mod->arch.bss_b_l1->sh_addr);
}
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 3eff7439d8d3..6a7aefe48346 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -32,9 +32,12 @@
#include <linux/unistd.h>
#include <linux/user.h>
#include <linux/a.out.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
+#include <linux/err.h>
#include <asm/blackfin.h>
-#include <asm/uaccess.h>
+#include <asm/fixed_code.h>
#define LED_ON 0
#define LED_OFF 1
@@ -173,8 +176,8 @@ void show_regs(struct pt_regs *regs)
printk(KERN_NOTICE "R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n",
regs->r4, regs->r5, regs->r6, regs->r7);
- if (!(regs->ipend))
- printk("USP: %08lx\n", rdusp());
+ if (!regs->ipend)
+ printk(KERN_NOTICE "USP: %08lx\n", rdusp());
}
/* Fill in the fpu structure for a core dump. */
@@ -322,7 +325,7 @@ asmlinkage int sys_execve(char *name, char **argv, char **envp)
goto out;
error = do_execve(filename, argv, envp, regs);
putname(filename);
- out:
+ out:
unlock_kernel();
return error;
}
@@ -350,13 +353,77 @@ unsigned long get_wchan(struct task_struct *p)
return 0;
}
+void finish_atomic_sections (struct pt_regs *regs)
+{
+ if (regs->pc < ATOMIC_SEQS_START || regs->pc >= ATOMIC_SEQS_END)
+ return;
+
+ switch (regs->pc) {
+ case ATOMIC_XCHG32 + 2:
+ put_user(regs->r1, (int *)regs->p0);
+ regs->pc += 2;
+ break;
+
+ case ATOMIC_CAS32 + 2:
+ case ATOMIC_CAS32 + 4:
+ if (regs->r0 == regs->r1)
+ put_user(regs->r2, (int *)regs->p0);
+ regs->pc = ATOMIC_CAS32 + 8;
+ break;
+ case ATOMIC_CAS32 + 6:
+ put_user(regs->r2, (int *)regs->p0);
+ regs->pc += 2;
+ break;
+
+ case ATOMIC_ADD32 + 2:
+ regs->r0 = regs->r1 + regs->r0;
+ /* fall through */
+ case ATOMIC_ADD32 + 4:
+ put_user(regs->r0, (int *)regs->p0);
+ regs->pc = ATOMIC_ADD32 + 6;
+ break;
+
+ case ATOMIC_SUB32 + 2:
+ regs->r0 = regs->r1 - regs->r0;
+ /* fall through */
+ case ATOMIC_SUB32 + 4:
+ put_user(regs->r0, (int *)regs->p0);
+ regs->pc = ATOMIC_SUB32 + 6;
+ break;
+
+ case ATOMIC_IOR32 + 2:
+ regs->r0 = regs->r1 | regs->r0;
+ /* fall through */
+ case ATOMIC_IOR32 + 4:
+ put_user(regs->r0, (int *)regs->p0);
+ regs->pc = ATOMIC_IOR32 + 6;
+ break;
+
+ case ATOMIC_AND32 + 2:
+ regs->r0 = regs->r1 & regs->r0;
+ /* fall through */
+ case ATOMIC_AND32 + 4:
+ put_user(regs->r0, (int *)regs->p0);
+ regs->pc = ATOMIC_AND32 + 6;
+ break;
+
+ case ATOMIC_XOR32 + 2:
+ regs->r0 = regs->r1 ^ regs->r0;
+ /* fall through */
+ case ATOMIC_XOR32 + 4:
+ put_user(regs->r0, (int *)regs->p0);
+ regs->pc = ATOMIC_XOR32 + 6;
+ break;
+ }
+}
+
#if defined(CONFIG_ACCESS_CHECK)
int _access_ok(unsigned long addr, unsigned long size)
{
if (addr > (addr + size))
return 0;
- if (segment_eq(get_fs(),KERNEL_DS))
+ if (segment_eq(get_fs(), KERNEL_DS))
return 1;
#ifdef CONFIG_MTD_UCLINUX
if (addr >= memory_start && (addr + size) <= memory_end)
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index e718bb4a1ef0..ed800c7456dd 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -36,8 +36,8 @@
#include <linux/ptrace.h>
#include <linux/user.h>
#include <linux/signal.h>
+#include <linux/uaccess.h>
-#include <asm/uaccess.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
@@ -122,7 +122,7 @@ static inline long get_reg(struct task_struct *task, int regno)
static inline int
put_reg(struct task_struct *task, int regno, unsigned long data)
{
- char * reg_ptr;
+ char *reg_ptr;
struct pt_regs *regs =
(struct pt_regs *)((unsigned long)task_stack_page(task) +
@@ -146,7 +146,7 @@ put_reg(struct task_struct *task, int regno, unsigned long data)
break;
default:
if (regno <= 216)
- *(long *)(reg_ptr + regno) = data;
+ *(long *)(reg_ptr + regno) = data;
}
return 0;
}
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 83060f98d15d..88f221b89b33 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -42,6 +42,7 @@
#include <asm/cacheflush.h>
#include <asm/blackfin.h>
#include <asm/cplbinit.h>
+#include <asm/fixed_code.h>
u16 _bfin_swrst;
@@ -63,10 +64,6 @@ EXPORT_SYMBOL(mtd_size);
char __initdata command_line[COMMAND_LINE_SIZE];
-#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE)
-static void generate_cpl_tables(void);
-#endif
-
void __init bf53x_cache_init(void)
{
#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE)
@@ -197,6 +194,17 @@ void __init setup_arch(char **cmdline_p)
/* this give a chance to get printk() working before crash. */
#endif
+ printk(KERN_INFO "Hardware Trace ");
+ if (bfin_read_TBUFCTL() & 0x1 )
+ printk("Active ");
+ else
+ printk("Off ");
+ if (bfin_read_TBUFCTL() & 0x2)
+ printk("and Enabled\n");
+ else
+ printk("and Disabled\n");
+
+
#if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH)
/* we need to initialize the Flashrom device here since we might
* do things with flash early on in the boot
@@ -354,15 +362,15 @@ void __init setup_arch(char **cmdline_p)
, _stext, _etext,
__start_rodata, __end_rodata,
_sdata, _edata,
- (void*)&init_thread_union, (void*)((int)(&init_thread_union) + 0x2000),
+ (void *)&init_thread_union, (void *)((int)(&init_thread_union) + 0x2000),
__init_begin, __init_end,
__bss_start, __bss_stop,
- (void*)_ramstart, (void*)memory_end
+ (void *)_ramstart, (void *)memory_end
#ifdef CONFIG_MTD_UCLINUX
- , (void*)memory_mtd_start, (void*)(memory_mtd_start + mtd_size)
+ , (void *)memory_mtd_start, (void *)(memory_mtd_start + mtd_size)
#endif
#if DMA_UNCACHED_REGION > 0
- , (void*)(_ramend - DMA_UNCACHED_REGION), (void*)(_ramend)
+ , (void *)(_ramend - DMA_UNCACHED_REGION), (void *)(_ramend)
#endif
);
@@ -388,22 +396,37 @@ void __init setup_arch(char **cmdline_p)
/* check the size of the l1 area */
l1_length = _etext_l1 - _stext_l1;
if (l1_length > L1_CODE_LENGTH)
- panic("L1 memory overflow\n");
+ panic("L1 code memory overflow\n");
l1_length = _ebss_l1 - _sdata_l1;
if (l1_length > L1_DATA_A_LENGTH)
- panic("L1 memory overflow\n");
+ panic("L1 data memory overflow\n");
-#ifdef BF561_FAMILY
- _bfin_swrst = bfin_read_SICA_SWRST();
-#else
_bfin_swrst = bfin_read_SWRST();
-#endif
+ /* Copy atomic sequences to their fixed location, and sanity check that
+ these locations are the ones that we advertise to userspace. */
+ memcpy((void *)FIXED_CODE_START, &fixed_code_start,
+ FIXED_CODE_END - FIXED_CODE_START);
+ BUG_ON((char *)&sigreturn_stub - (char *)&fixed_code_start
+ != SIGRETURN_STUB - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_xchg32 - (char *)&fixed_code_start
+ != ATOMIC_XCHG32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_cas32 - (char *)&fixed_code_start
+ != ATOMIC_CAS32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_add32 - (char *)&fixed_code_start
+ != ATOMIC_ADD32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_sub32 - (char *)&fixed_code_start
+ != ATOMIC_SUB32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_ior32 - (char *)&fixed_code_start
+ != ATOMIC_IOR32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_and32 - (char *)&fixed_code_start
+ != ATOMIC_AND32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_xor32 - (char *)&fixed_code_start
+ != ATOMIC_XOR32 - FIXED_CODE_START);
+
+ init_exception_vectors();
bf53x_cache_init();
-
- printk(KERN_INFO "Hardware Trace Enabled\n");
- bfin_write_TBUFCTL(0x03);
}
static int __init topology_init(void)
@@ -421,286 +444,6 @@ static int __init topology_init(void)
subsys_initcall(topology_init);
-#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE)
-static u16 __init lock_kernel_check(u32 start, u32 end)
-{
- if ((start <= (u32) _stext && end >= (u32) _end)
- || (start >= (u32) _stext && end <= (u32) _end))
- return IN_KERNEL;
- return 0;
-}
-
-static unsigned short __init
-fill_cplbtab(struct cplb_tab *table,
- unsigned long start, unsigned long end,
- unsigned long block_size, unsigned long cplb_data)
-{
- int i;
-
- switch (block_size) {
- case SIZE_4M:
- i = 3;
- break;
- case SIZE_1M:
- i = 2;
- break;
- case SIZE_4K:
- i = 1;
- break;
- case SIZE_1K:
- default:
- i = 0;
- break;
- }
-
- cplb_data = (cplb_data & ~(3 << 16)) | (i << 16);
-
- while ((start < end) && (table->pos < table->size)) {
-
- table->tab[table->pos++] = start;
-
- if (lock_kernel_check(start, start + block_size) == IN_KERNEL)
- table->tab[table->pos++] =
- cplb_data | CPLB_LOCK | CPLB_DIRTY;
- else
- table->tab[table->pos++] = cplb_data;
-
- start += block_size;
- }
- return 0;
-}
-
-static unsigned short __init
-close_cplbtab(struct cplb_tab *table)
-{
-
- while (table->pos < table->size) {
-
- table->tab[table->pos++] = 0;
- table->tab[table->pos++] = 0; /* !CPLB_VALID */
- }
- return 0;
-}
-
-/* helper function */
-static void __fill_code_cplbtab(struct cplb_tab *t, int i,
- u32 a_start, u32 a_end)
-{
- if (cplb_data[i].psize) {
- fill_cplbtab(t,
- cplb_data[i].start,
- cplb_data[i].end,
- cplb_data[i].psize,
- cplb_data[i].i_conf);
- } else {
-#if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263))
- if (i == SDRAM_KERN) {
- fill_cplbtab(t,
- cplb_data[i].start,
- cplb_data[i].end,
- SIZE_4M,
- cplb_data[i].i_conf);
- } else {
-#endif
- fill_cplbtab(t,
- cplb_data[i].start,
- a_start,
- SIZE_1M,
- cplb_data[i].i_conf);
- fill_cplbtab(t,
- a_start,
- a_end,
- SIZE_4M,
- cplb_data[i].i_conf);
- fill_cplbtab(t, a_end,
- cplb_data[i].end,
- SIZE_1M,
- cplb_data[i].i_conf);
- }
- }
-}
-
-static void __fill_data_cplbtab(struct cplb_tab *t, int i,
- u32 a_start, u32 a_end)
-{
- if (cplb_data[i].psize) {
- fill_cplbtab(t,
- cplb_data[i].start,
- cplb_data[i].end,
- cplb_data[i].psize,
- cplb_data[i].d_conf);
- } else {
- fill_cplbtab(t,
- cplb_data[i].start,
- a_start, SIZE_1M,
- cplb_data[i].d_conf);
- fill_cplbtab(t, a_start,
- a_end, SIZE_4M,
- cplb_data[i].d_conf);
- fill_cplbtab(t, a_end,
- cplb_data[i].end,
- SIZE_1M,
- cplb_data[i].d_conf);
- }
-}
-static void __init generate_cpl_tables(void)
-{
-
- u16 i, j, process;
- u32 a_start, a_end, as, ae, as_1m;
-
- struct cplb_tab *t_i = NULL;
- struct cplb_tab *t_d = NULL;
- struct s_cplb cplb;
-
- cplb.init_i.size = MAX_CPLBS;
- cplb.init_d.size = MAX_CPLBS;
- cplb.switch_i.size = MAX_SWITCH_I_CPLBS;
- cplb.switch_d.size = MAX_SWITCH_D_CPLBS;
-
- cplb.init_i.pos = 0;
- cplb.init_d.pos = 0;
- cplb.switch_i.pos = 0;
- cplb.switch_d.pos = 0;
-
- cplb.init_i.tab = icplb_table;
- cplb.init_d.tab = dcplb_table;
- cplb.switch_i.tab = ipdt_table;
- cplb.switch_d.tab = dpdt_table;
-
- cplb_data[SDRAM_KERN].end = memory_end;
-
-#ifdef CONFIG_MTD_UCLINUX
- cplb_data[SDRAM_RAM_MTD].start = memory_mtd_start;
- cplb_data[SDRAM_RAM_MTD].end = memory_mtd_start + mtd_size;
- cplb_data[SDRAM_RAM_MTD].valid = mtd_size > 0;
-# if defined(CONFIG_ROMFS_FS)
- cplb_data[SDRAM_RAM_MTD].attr |= I_CPLB;
-
- /*
- * The ROMFS_FS size is often not multiple of 1MB.
- * This can cause multiple CPLB sets covering the same memory area.
- * This will then cause multiple CPLB hit exceptions.
- * Workaround: We ensure a contiguous memory area by extending the kernel
- * memory section over the mtd section.
- * For ROMFS_FS memory must be covered with ICPLBs anyways.
- * So there is no difference between kernel and mtd memory setup.
- */
-
- cplb_data[SDRAM_KERN].end = memory_mtd_start + mtd_size;;
- cplb_data[SDRAM_RAM_MTD].valid = 0;
-
-# endif
-#else
- cplb_data[SDRAM_RAM_MTD].valid = 0;
-#endif
-
- cplb_data[SDRAM_DMAZ].start = _ramend - DMA_UNCACHED_REGION;
- cplb_data[SDRAM_DMAZ].end = _ramend;
-
- cplb_data[RES_MEM].start = _ramend;
- cplb_data[RES_MEM].end = physical_mem_end;
-
- if (reserved_mem_dcache_on)
- cplb_data[RES_MEM].d_conf = SDRAM_DGENERIC;
- else
- cplb_data[RES_MEM].d_conf = SDRAM_DNON_CHBL;
-
- if (reserved_mem_icache_on)
- cplb_data[RES_MEM].i_conf = SDRAM_IGENERIC;
- else
- cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL;
-
- for (i = ZERO_P; i <= L2_MEM; i++) {
- if (!cplb_data[i].valid)
- continue;
-
- as_1m = cplb_data[i].start % SIZE_1M;
-
- /*
- * We need to make sure all sections are properly 1M aligned
- * However between Kernel Memory and the Kernel mtd section,
- * depending on the rootfs size, there can be overlapping
- * memory areas.
- */
-
- if (as_1m && i != L1I_MEM && i != L1D_MEM) {
-#ifdef CONFIG_MTD_UCLINUX
- if (i == SDRAM_RAM_MTD) {
- if ((cplb_data[SDRAM_KERN].end + 1) >
- cplb_data[SDRAM_RAM_MTD].start)
- cplb_data[SDRAM_RAM_MTD].start =
- (cplb_data[i].start &
- (-2*SIZE_1M)) + SIZE_1M;
- else
- cplb_data[SDRAM_RAM_MTD].start =
- (cplb_data[i].start &
- (-2*SIZE_1M));
- } else
-#endif
- printk(KERN_WARNING
- "Unaligned Start of %s at 0x%X\n",
- cplb_data[i].name, cplb_data[i].start);
- }
-
- as = cplb_data[i].start % SIZE_4M;
- ae = cplb_data[i].end % SIZE_4M;
-
- if (as)
- a_start = cplb_data[i].start + (SIZE_4M - (as));
- else
- a_start = cplb_data[i].start;
-
- a_end = cplb_data[i].end - ae;
-
- for (j = INITIAL_T; j <= SWITCH_T; j++) {
-
- switch (j) {
- case INITIAL_T:
- if (cplb_data[i].attr & INITIAL_T) {
- t_i = &cplb.init_i;
- t_d = &cplb.init_d;
- process = 1;
- } else
- process = 0;
- break;
- case SWITCH_T:
- if (cplb_data[i].attr & SWITCH_T) {
- t_i = &cplb.switch_i;
- t_d = &cplb.switch_d;
- process = 1;
- } else
- process = 0;
- break;
- default:
- process = 0;
- break;
- }
-
- if (!process)
- continue;
- if (cplb_data[i].attr & I_CPLB)
- __fill_code_cplbtab(t_i, i, a_start, a_end);
-
- if (cplb_data[i].attr & D_CPLB)
- __fill_data_cplbtab(t_d, i, a_start, a_end);
- }
- }
-
-/* close tables */
-
- close_cplbtab(&cplb.init_i);
- close_cplbtab(&cplb.init_d);
-
- cplb.init_i.tab[cplb.init_i.pos] = -1;
- cplb.init_d.tab[cplb.init_d.pos] = -1;
- cplb.switch_i.tab[cplb.switch_i.pos] = -1;
- cplb.switch_d.tab[cplb.switch_d.pos] = -1;
-
-}
-
-#endif
-
static u_long get_vco(void)
{
u_long msel;
@@ -730,7 +473,6 @@ u_long get_cclk(void)
return get_vco() / ssel;
return get_vco() >> csel;
}
-
EXPORT_SYMBOL(get_cclk);
/* Get the System clock */
@@ -749,7 +491,6 @@ u_long get_sclk(void)
return get_vco() / ssel;
}
-
EXPORT_SYMBOL(get_sclk);
/*
@@ -804,23 +545,23 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "D-CACHE:\tOFF\n");
- switch(bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) {
- case ACACHE_BSRAM:
- seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n");
- dcache_size = 16;
- dsup_banks = 1;
- break;
- case ACACHE_BCACHE:
- seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n");
- dcache_size = 32;
- dsup_banks = 2;
- break;
- case ASRAM_BSRAM:
- seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n");
- dcache_size = 0;
- dsup_banks = 0;
- break;
- default:
+ switch (bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) {
+ case ACACHE_BSRAM:
+ seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n");
+ dcache_size = 16;
+ dsup_banks = 1;
+ break;
+ case ACACHE_BCACHE:
+ seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n");
+ dcache_size = 32;
+ dsup_banks = 2;
+ break;
+ case ASRAM_BSRAM:
+ seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n");
+ dcache_size = 0;
+ dsup_banks = 0;
+ break;
+ default:
break;
}
diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c
index 316e65c3439d..5564c9588aa8 100644
--- a/arch/blackfin/kernel/signal.c
+++ b/arch/blackfin/kernel/signal.c
@@ -34,8 +34,8 @@
#include <linux/personality.h>
#include <linux/binfmts.h>
#include <linux/freezer.h>
+#include <linux/uaccess.h>
-#include <asm/uaccess.h>
#include <asm/cacheflush.h>
#include <asm/ucontext.h>
@@ -124,7 +124,7 @@ asmlinkage int do_rt_sigreturn(unsigned long __unused)
return r0;
- badframe:
+ badframe:
force_sig(SIGSEGV, current);
return 0;
}
@@ -239,7 +239,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info,
return 0;
- give_sigsegv:
+ give_sigsegv:
if (sig == SIGSEGV)
ka->sa.sa_handler = SIG_DFL;
force_sig(SIGSEGV, current);
@@ -263,7 +263,7 @@ handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
}
/* fallthrough */
case -ERESTARTNOINTR:
- do_restart:
+ do_restart:
regs->p0 = regs->orig_p0;
regs->r0 = regs->orig_r0;
regs->pc -= 2;
@@ -341,7 +341,7 @@ asmlinkage void do_signal(struct pt_regs *regs)
return;
}
-no_signal:
+ no_signal:
/* Did we come from a system call? */
if (regs->orig_p0 >= 0)
/* Restart the system call - no handlers present */
diff --git a/arch/blackfin/kernel/sys_bfin.c b/arch/blackfin/kernel/sys_bfin.c
index f436e6743f5a..abcd14817d0e 100644
--- a/arch/blackfin/kernel/sys_bfin.c
+++ b/arch/blackfin/kernel/sys_bfin.c
@@ -37,12 +37,13 @@
#include <linux/syscalls.h>
#include <linux/mman.h>
#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+#include <linux/ipc.h>
+#include <linux/unistd.h>
#include <asm/cacheflush.h>
-#include <asm/uaccess.h>
-#include <asm/ipc.h>
#include <asm/dma.h>
-#include <asm/unistd.h>
/*
* sys_pipe() is the normal C calling standard for creating
@@ -83,7 +84,7 @@ do_mmap2(unsigned long addr, unsigned long len,
if (file)
fput(file);
- out:
+ out:
return error;
}
diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c
index f578176b6d92..beef057bd1dc 100644
--- a/arch/blackfin/kernel/time.c
+++ b/arch/blackfin/kernel/time.c
@@ -87,7 +87,7 @@ void __init init_leds(void)
static inline void do_leds(void)
{
static unsigned int count = 50;
- static int flag = 0;
+ static int flag;
unsigned short tmp = 0;
if (--count == 0) {
@@ -200,7 +200,7 @@ irqreturn_t timer_interrupt(int irq, void *dummy)__attribute__((l1_text));
irqreturn_t timer_interrupt(int irq, void *dummy)
{
/* last time the cmos clock got updated */
- static long last_rtc_update = 0;
+ static long last_rtc_update;
write_seqlock(&xtime_lock);
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 56058b0b6d4a..792a8416fe10 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -27,15 +27,16 @@
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kallsyms.h>
+#include <linux/fs.h>
#include <asm/traps.h>
#include <asm/cacheflush.h>
#include <asm/blackfin.h>
-#include <asm/uaccess.h>
#include <asm/irq_handler.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/kallsyms.h>
+#include <asm/trace.h>
#ifdef CONFIG_KGDB
# include <linux/debugger.h>
@@ -76,7 +77,7 @@ static int printk_address(unsigned long address)
if (!modname)
modname = delim = "";
return printk("<0x%p> { %s%s%s%s + 0x%lx }",
- (void*)address, delim, modname, delim, symname,
+ (void *)address, delim, modname, delim, symname,
(unsigned long)offset);
}
@@ -119,7 +120,7 @@ static int printk_address(unsigned long address)
write_unlock_irq(&tasklist_lock);
return printk("<0x%p> [ %s + 0x%lx ]",
- (void*)address, name, offset);
+ (void *)address, name, offset);
}
vml = vml->next;
@@ -128,19 +129,9 @@ static int printk_address(unsigned long address)
write_unlock_irq(&tasklist_lock);
/* we were unable to find this address anywhere */
- return printk("[<0x%p>]", (void*)address);
+ return printk("[<0x%p>]", (void *)address);
}
-#define trace_buffer_save(x) \
- do { \
- (x) = bfin_read_TBUFCTL(); \
- bfin_write_TBUFCTL((x) & ~TBUFEN); \
- } while (0)
-#define trace_buffer_restore(x) \
- do { \
- bfin_write_TBUFCTL((x)); \
- } while (0)
-
asmlinkage void trap_c(struct pt_regs *fp)
{
int j, sig = 0;
@@ -150,7 +141,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
#ifdef CONFIG_KGDB
# define CHK_DEBUGGER_TRAP() \
do { \
- CHK_DEBUGGER(trapnr, sig, info.si_code, fp); \
+ CHK_DEBUGGER(trapnr, sig, info.si_code, fp, ); \
} while (0)
# define CHK_DEBUGGER_TRAP_MAYBE() \
do { \
@@ -203,15 +194,14 @@ asmlinkage void trap_c(struct pt_regs *fp)
#else
/* 0x02 - User Defined, Caught by default */
#endif
- /* 0x03 - Atomic test and set */
+ /* 0x03 - User Defined, userspace stack overflow */
case VEC_EXCPT03:
info.si_code = SEGV_STACKFLOW;
sig = SIGSEGV;
printk(KERN_EMERG EXC_0x03);
CHK_DEBUGGER_TRAP();
break;
- /* 0x04 - spinlock - handled by _ex_spinlock,
- getting here is an error */
+ /* 0x04 - User Defined, Caught by default */
/* 0x05 - User Defined, Caught by default */
/* 0x06 - User Defined, Caught by default */
/* 0x07 - User Defined, Caught by default */
@@ -547,29 +537,28 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr)
printk(KERN_EMERG "TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n"
KERN_EMERG "BSS = 0x%p-0x%p USER-STACK = 0x%p\n"
KERN_EMERG "\n",
- (void*)current->mm->start_code,
- (void*)current->mm->end_code,
- (void*)current->mm->start_data,
- (void*)current->mm->end_data,
- (void*)current->mm->end_data,
- (void*)current->mm->brk,
- (void*)current->mm->start_stack);
+ (void *)current->mm->start_code,
+ (void *)current->mm->end_code,
+ (void *)current->mm->start_data,
+ (void *)current->mm->end_data,
+ (void *)current->mm->end_data,
+ (void *)current->mm->brk,
+ (void *)current->mm->start_stack);
}
printk(KERN_EMERG "return address: [0x%p]; contents of:", retaddr);
- if (retaddr != 0 && retaddr <= (void*)physical_mem_end
+ if (retaddr != 0 && retaddr <= (void *)physical_mem_end
#if L1_CODE_LENGTH != 0
/* FIXME: Copy the code out of L1 Instruction SRAM through dma
memcpy. */
- && !(retaddr >= (void*)L1_CODE_START
- && retaddr < (void*)(L1_CODE_START + L1_CODE_LENGTH))
+ && !(retaddr >= (void *)L1_CODE_START
+ && retaddr < (void *)(L1_CODE_START + L1_CODE_LENGTH))
#endif
) {
int i = ((unsigned int)retaddr & 0xFFFFFFF0) - 32;
unsigned short x = 0;
- for (; i < ((unsigned int)retaddr & 0xFFFFFFF0 ) + 32 ;
- i += 2) {
- if ( !(i & 0xF) )
+ for (; i < ((unsigned int)retaddr & 0xFFFFFFF0) + 32; i += 2) {
+ if (!(i & 0xF))
printk(KERN_EMERG "\n" KERN_EMERG
"0x%08x: ", i);
@@ -588,7 +577,7 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr)
" The rest of this error"
" is meanless\n");
#endif
- if ( i == (unsigned int)retaddr )
+ if (i == (unsigned int)retaddr)
printk("[%04x]", x);
else
printk(" %04x ", x);
@@ -681,8 +670,8 @@ void panic_cplb_error(int cplb_panic, struct pt_regs *fp)
break;
}
- printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void*)bfin_read_DCPLB_FAULT_ADDR());
- printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void*)bfin_read_ICPLB_FAULT_ADDR());
+ printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void *)bfin_read_DCPLB_FAULT_ADDR());
+ printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void *)bfin_read_ICPLB_FAULT_ADDR());
dump_bfin_regs(fp, (void *)fp->retx);
dump_stack();
panic("Unrecoverable event\n");
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 1ef1e36b3957..fb53780247bc 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -31,6 +31,8 @@
#include <asm-generic/vmlinux.lds.h>
#include <asm/mem_map.h>
+#include <asm/page.h>
+#include <asm/thread_info.h>
OUTPUT_FORMAT("elf32-bfin")
ENTRY(__start)
@@ -63,8 +65,12 @@ SECTIONS
.data :
{
+ /* make sure the init_task is aligned to the
+ * kernel thread size so we can locate the kernel
+ * stack properly and quickly.
+ */
__sdata = .;
- . = ALIGN(0x2000);
+ . = ALIGN(THREAD_SIZE);
*(.data.init_task)
DATA_DATA
CONSTRUCTORS
@@ -72,14 +78,14 @@ SECTIONS
. = ALIGN(32);
*(.data.cacheline_aligned)
- . = ALIGN(0x2000);
+ . = ALIGN(THREAD_SIZE);
__edata = .;
}
___init_begin = .;
.init :
{
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
__sinittext = .;
*(.init.text)
__einittext = .;
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-20 13:56:34 +0000