If unsure, say Y. Only embedded should say N here.
-config CC_STACKPROTECTOR
- bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
- help
- This option turns on the -fstack-protector GCC feature. This
- feature puts, at the beginning of functions, a canary value on
- the stack just before the return address, and validates
- the value just before actually returning. Stack based buffer
- overflows (that need to overwrite this return address) now also
- overwrite the canary, which gets detected and the attack is then
- neutralized via a kernel panic.
-
- This feature requires gcc version 4.2 or above.
-
+ config MIPS_O32_FP64_SUPPORT
+ bool "Support for O32 binaries using 64-bit FP"
+ depends on 32BIT || MIPS32_O32
+ default y
+ help
+ When this is enabled, the kernel will support use of 64-bit floating
+ point registers with binaries using the O32 ABI along with the
+ EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
+ 32-bit MIPS systems this support is at the cost of increasing the
+ size and complexity of the compiled FPU emulator. Thus if you are
+ running a MIPS32 system and know that none of your userland binaries
+ will require 64-bit floating point, you may wish to reduce the size
+ of your kernel & potentially improve FP emulation performance by
+ saying N here.
+
+ If unsure, say Y.
+
config USE_OF
bool
select OF
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+ #include "bcm47xx_private.h"
+
#include <linux/export.h>
#include <linux/types.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_embedded.h>
#include <linux/bcma/bcma_soc.h>
_machine_halt = bcm47xx_machine_halt;
pm_power_off = bcm47xx_machine_halt;
bcm47xx_board_detect();
+ mips_set_machine_name(bcm47xx_board_get_name());
}
+ static int __init bcm47xx_cpu_fixes(void)
+ {
+ switch (bcm47xx_bus_type) {
+ #ifdef CONFIG_BCM47XX_SSB
+ case BCM47XX_BUS_TYPE_SSB:
+ /* Nothing to do */
+ break;
+ #endif
+ #ifdef CONFIG_BCM47XX_BCMA
+ case BCM47XX_BUS_TYPE_BCMA:
+ /* The BCM4706 has a problem with the CPU wait instruction.
+ * When r4k_wait or r4k_wait_irqoff is used will just hang and
+ * not return from a msleep(). Removing the cpu_wait
+ * functionality is a workaround for this problem. The BCM4716
+ * does not have this problem.
+ */
+ if (bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4706)
+ cpu_wait = NULL;
+ break;
+ #endif
+ }
+ return 0;
+ }
+ arch_initcall(bcm47xx_cpu_fixes);
+
+static struct fixed_phy_status bcm47xx_fixed_phy_status __initdata = {
+ .link = 1,
+ .speed = SPEED_100,
+ .duplex = DUPLEX_FULL,
+};
+
static int __init bcm47xx_register_bus_complete(void)
{
switch (bcm47xx_bus_type) {
break;
#endif
}
+ bcm47xx_buttons_register();
+ bcm47xx_leds_register();
+
+ fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
return 0;
}
device_initcall(bcm47xx_register_bus_complete);
#ifndef _ASM_VPE_H
#define _ASM_VPE_H
- unsigned int uid, gid;
+ #include <linux/init.h>
+ #include <linux/list.h>
+ #include <linux/smp.h>
+ #include <linux/spinlock.h>
+
+ #define VPE_MODULE_NAME "vpe"
+ #define VPE_MODULE_MINOR 1
+
+ /* grab the likely amount of memory we will need. */
+ #ifdef CONFIG_MIPS_VPE_LOADER_TOM
+ #define P_SIZE (2 * 1024 * 1024)
+ #else
+ /* add an overhead to the max kmalloc size for non-striped symbols/etc */
+ #define P_SIZE (256 * 1024)
+ #endif
+
+ #define MAX_VPES 16
+ #define VPE_PATH_MAX 256
+
+ static inline int aprp_cpu_index(void)
+ {
+ #ifdef CONFIG_MIPS_CMP
+ return setup_max_cpus;
+ #else
+ extern int tclimit;
+ return tclimit;
+ #endif
+ }
+
+ enum vpe_state {
+ VPE_STATE_UNUSED = 0,
+ VPE_STATE_INUSE,
+ VPE_STATE_RUNNING
+ };
+
+ enum tc_state {
+ TC_STATE_UNUSED = 0,
+ TC_STATE_INUSE,
+ TC_STATE_RUNNING,
+ TC_STATE_DYNAMIC
+ };
+
+ struct vpe {
+ enum vpe_state state;
+
+ /* (device) minor associated with this vpe */
+ int minor;
+
+ /* elfloader stuff */
+ void *load_addr;
+ unsigned long len;
+ char *pbuffer;
+ unsigned long plen;
+ char cwd[VPE_PATH_MAX];
+
+ unsigned long __start;
+
+ /* tc's associated with this vpe */
+ struct list_head tc;
+
+ /* The list of vpe's */
+ struct list_head list;
+
+ /* shared symbol address */
+ void *shared_ptr;
+
+ /* the list of who wants to know when something major happens */
+ struct list_head notify;
+
+ unsigned int ntcs;
+ };
+
+ struct tc {
+ enum tc_state state;
+ int index;
+
+ struct vpe *pvpe; /* parent VPE */
+ struct list_head tc; /* The list of TC's with this VPE */
+ struct list_head list; /* The global list of tc's */
+ };
+
struct vpe_notifications {
void (*start)(int vpe);
void (*stop)(int vpe);
struct list_head list;
};
-int vpe_getuid(int index);
-int vpe_getgid(int index);
+ struct vpe_control {
+ spinlock_t vpe_list_lock;
+ struct list_head vpe_list; /* Virtual processing elements */
+ spinlock_t tc_list_lock;
+ struct list_head tc_list; /* Thread contexts */
+ };
+
+ extern unsigned long physical_memsize;
+ extern struct vpe_control vpecontrol;
+ extern const struct file_operations vpe_fops;
+
+ int vpe_notify(int index, struct vpe_notifications *notify);
+
+ void *vpe_get_shared(int index);
+ char *vpe_getcwd(int index);
+
+ struct vpe *get_vpe(int minor);
+ struct tc *get_tc(int index);
+ struct vpe *alloc_vpe(int minor);
+ struct tc *alloc_tc(int index);
+ void release_vpe(struct vpe *v);
- extern int vpe_notify(int index, struct vpe_notifications *notify);
+ void *alloc_progmem(unsigned long len);
+ void release_progmem(void *ptr);
- extern void *vpe_get_shared(int index);
- extern char *vpe_getcwd(int index);
+ int __weak vpe_run(struct vpe *v);
+ void cleanup_tc(struct tc *tc);
+ int __init vpe_module_init(void);
+ void __exit vpe_module_exit(void);
#endif /* _ASM_VPE_H */
return v->shared_ptr;
}
-
EXPORT_SYMBOL(vpe_get_shared);
-int vpe_getuid(int index)
-{
- struct vpe *v = get_vpe(index);
-
- if (v == NULL)
- return -1;
-
- return v->uid;
-}
-EXPORT_SYMBOL(vpe_getuid);
-
-int vpe_getgid(int index)
-{
- struct vpe *v = get_vpe(index);
-
- if (v == NULL)
- return -1;
-
- return v->gid;
-}
-EXPORT_SYMBOL(vpe_getgid);
-
int vpe_notify(int index, struct vpe_notifications *notify)
{
- struct vpe *v;
+ struct vpe *v = get_vpe(index);
- if ((v = get_vpe(index)) == NULL)
+ if (v == NULL)
return -1;
list_add(¬ify->list, &v->notify);
void __init plat_mem_setup(void)
{
- panic_timeout = 5;
+ #ifdef CONFIG_SMP
+ nlm_wakeup_secondary_cpus();
+
+ /* update TLB size after waking up threads */
+ current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1;
+
+ register_smp_ops(&nlm_smp_ops);
+ #endif
_machine_restart = (void (*)(char *))nlm_linux_exit;
_machine_halt = nlm_linux_exit;
pm_power_off = nlm_linux_exit;
projects / mirror_ubuntu-focal-kernel.git / commitdiff