--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
-@@ -1669,6 +1669,28 @@ config MIPS_VPE_LOADER
+@@ -1699,6 +1699,28 @@
Includes a loader for loading an elf relocatable object
onto another VPE and running it.
/* TCStatus fields (per TC) */
#define TCSTATUS_TASID (_ULCAST_(0xff))
#define TCSTATUS_IXMT_SHIFT 10
-@@ -350,6 +390,14 @@ do { \
+@@ -350,6 +390,14 @@
#define write_vpe_c0_vpecontrol(val) mttc0(1, 1, val)
#define read_vpe_c0_vpeconf0() mftc0(1, 2)
#define write_vpe_c0_vpeconf0(val) mttc0(1, 2, val)
#define read_vpe_c0_count() mftc0(9, 0)
#define write_vpe_c0_count(val) mttc0(9, 0, val)
#define read_vpe_c0_status() mftc0(12, 0)
-@@ -381,6 +429,12 @@ do { \
+@@ -381,6 +429,12 @@
#define write_tc_c0_tchalt(val) mttc0(2, 4, val)
#define read_tc_c0_tccontext() mftc0(2, 5)
#define write_tc_c0_tccontext(val) mttc0(2, 5, val)
#define read_tc_gpr_sp() mftgpr(29)
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
-@@ -84,7 +84,8 @@ obj-$(CONFIG_MIPS32_O32) += binfmt_elfo3
+@@ -84,7 +84,8 @@
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_PROC_FS) += proc.o
/*
* Dump new MIPS MT state for the core. Does not leave TCs halted.
-@@ -78,18 +147,18 @@ void mips_mt_regdump(unsigned long mvpct
+@@ -78,18 +147,18 @@
if ((read_tc_c0_tcbind() & TCBIND_CURVPE) == i) {
printk(" VPE %d\n", i);
printk(" VPEControl : %08lx\n",
break; /* Next VPE */
}
}
-@@ -287,6 +356,9 @@ void mips_mt_set_cpuoptions(void)
+@@ -287,6 +356,9 @@
printk("Mapped %ld ITC cells starting at 0x%08x\n",
((itcblkgrn & 0x7fe00000) >> 20), itc_base);
}
#include <asm/bootinfo.h>
#include <asm/cpu.h>
#include <asm/cpu-features.h>
-@@ -108,3 +109,19 @@ const struct seq_operations cpuinfo_op =
+@@ -108,3 +109,19 @@
.stop = c_stop,
.show = show_cpuinfo,
};
+}
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
-@@ -1335,6 +1335,13 @@ void smtc_get_new_mmu_context(struct mm_
+@@ -1336,6 +1336,13 @@
asid = asid_cache(cpu);
do {
flush_icache_all();
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
-@@ -77,6 +77,58 @@ static struct kspd_notifications kspd_ev
+@@ -76,6 +76,58 @@
static int kspd_events_reqd;
#endif
/* grab the likely amount of memory we will need. */
#ifdef CONFIG_MIPS_VPE_LOADER_TOM
#define P_SIZE (2 * 1024 * 1024)
-@@ -269,6 +321,13 @@ static void *alloc_progmem(unsigned long
+@@ -268,6 +320,13 @@
void *addr;
#ifdef CONFIG_MIPS_VPE_LOADER_TOM
/*
* This means you must tell Linux to use less memory than you
* physically have, for example by passing a mem= boot argument.
-@@ -747,6 +806,12 @@ static int vpe_run(struct vpe * v)
+@@ -746,6 +805,12 @@
}
/* Write the address we want it to start running from in the TCPC register. */
write_tc_c0_tcrestart((unsigned long)v->__start);
write_tc_c0_tccontext((unsigned long)0);
-@@ -760,6 +825,20 @@ static int vpe_run(struct vpe * v)
+@@ -759,6 +824,20 @@
write_tc_c0_tchalt(read_tc_c0_tchalt() & ~TCHALT_H);
/*
* The sde-kit passes 'memsize' to __start in $a3, so set something
* here... Or set $a3 to zero and define DFLT_STACK_SIZE and
-@@ -834,6 +913,9 @@ static int find_vpe_symbols(struct vpe *
+@@ -833,6 +912,9 @@
if ( (v->__start == 0) || (v->shared_ptr == NULL))
return -1;
return 0;
}
-@@ -995,6 +1077,15 @@ static int vpe_elfload(struct vpe * v)
+@@ -994,6 +1076,15 @@
(unsigned long)v->load_addr + v->len);
if ((find_vpe_symbols(v, sechdrs, symindex, strtab, &mod)) < 0) {
if (v->__start == 0) {
printk(KERN_WARNING "VPE loader: program does not contain "
"a __start symbol\n");
-@@ -1065,6 +1156,9 @@ static int vpe_open(struct inode *inode,
+@@ -1064,6 +1155,9 @@
struct vpe_notifications *not;
struct vpe *v;
int ret;
if (minor != iminor(inode)) {
/* assume only 1 device at the moment. */
-@@ -1091,14 +1185,23 @@ static int vpe_open(struct inode *inode,
+@@ -1090,14 +1184,23 @@
cleanup_tc(get_tc(tclimit));
}
#ifdef CONFIG_MIPS_APSP_KSPD
/* get kspd to tell us when a syscall_exit happens */
-@@ -1351,6 +1454,133 @@ static void kspd_sp_exit( int sp_id)
+@@ -1350,6 +1453,133 @@
cleanup_tc(get_tc(sp_id));
}
#endif
static ssize_t store_kill(struct device *dev, struct device_attribute *attr,
const char *buf, size_t len)
-@@ -1432,6 +1662,18 @@ static int __init vpe_module_init(void)
+@@ -1431,6 +1661,18 @@
printk("VPE loader: not a MIPS MT capable processor\n");
return -ENODEV;
}
if (vpelimit == 0) {
printk(KERN_WARNING "No VPEs reserved for AP/SP, not "
-@@ -1476,10 +1718,12 @@ static int __init vpe_module_init(void)
+@@ -1475,10 +1717,12 @@
mtflags = dmt();
vpflags = dvpe();
val = read_c0_mvpconf0();
hw_tcs = (val & MVPCONF0_PTC) + 1;
-@@ -1491,6 +1735,7 @@ static int __init vpe_module_init(void)
+@@ -1490,6 +1734,7 @@
* reschedule send IPIs or similar we might hang.
*/
clear_c0_mvpcontrol(MVPCONTROL_VPC);
evpe(vpflags);
emt(mtflags);
local_irq_restore(flags);
-@@ -1516,6 +1761,7 @@ static int __init vpe_module_init(void)
+@@ -1515,6 +1760,7 @@
}
v->ntcs = hw_tcs - tclimit;
/* add the tc to the list of this vpe's tc's. */
list_add(&t->tc, &v->tc);
-@@ -1584,6 +1830,7 @@ static int __init vpe_module_init(void)
+@@ -1583,6 +1829,7 @@
out_reenable:
/* release config state */
clear_c0_mvpcontrol(MVPCONTROL_VPC);
projects / openwrt.git / blobdiff