180 lines
4.5 KiB
Diff
180 lines
4.5 KiB
Diff
--- a/arch/mips/Kconfig
|
|
+++ b/arch/mips/Kconfig
|
|
@@ -2320,6 +2320,12 @@ config MIPS_VPE_LOADER
|
|
Includes a loader for loading an elf relocatable object
|
|
onto another VPE and running it.
|
|
|
|
+config IFX_VPE_EXT
|
|
+ bool "IFX APRP Extensions"
|
|
+ depends on MIPS_VPE_LOADER
|
|
+ help
|
|
+ IFX included extensions in APRP
|
|
+
|
|
config MIPS_VPE_LOADER_CMP
|
|
bool
|
|
default "y"
|
|
--- a/arch/mips/include/asm/vpe.h
|
|
+++ b/arch/mips/include/asm/vpe.h
|
|
@@ -127,4 +127,13 @@ void cleanup_tc(struct tc *tc);
|
|
|
|
int __init vpe_module_init(void);
|
|
void __exit vpe_module_exit(void);
|
|
+
|
|
+/* For the explanation of the APIs please refer the section "MT APRP Kernel
|
|
+ * Programming" in AR9 SW Architecture Specification
|
|
+ */
|
|
+int32_t vpe1_sw_start(void *sw_start_addr, uint32_t tcmask, uint32_t flags);
|
|
+int32_t vpe1_sw_stop(uint32_t flags);
|
|
+uint32_t vpe1_get_load_addr(uint32_t flags);
|
|
+uint32_t vpe1_get_max_mem(uint32_t flags);
|
|
+
|
|
#endif /* _ASM_VPE_H */
|
|
--- a/arch/mips/kernel/vpe-mt.c
|
|
+++ b/arch/mips/kernel/vpe-mt.c
|
|
@@ -29,6 +29,7 @@ int vpe_run(struct vpe *v)
|
|
struct vpe_notifications *notifier;
|
|
unsigned int vpeflags;
|
|
struct tc *t;
|
|
+ unsigned long physical_memsize = 0L;
|
|
|
|
/* check we are the Master VPE */
|
|
local_irq_save(flags);
|
|
@@ -417,6 +418,8 @@ int __init vpe_module_init(void)
|
|
}
|
|
|
|
v->ntcs = hw_tcs - aprp_cpu_index();
|
|
+ write_tc_c0_tcbind((read_tc_c0_tcbind() &
|
|
+ ~TCBIND_CURVPE) | 1);
|
|
|
|
/* add the tc to the list of this vpe's tc's. */
|
|
list_add(&t->tc, &v->tc);
|
|
@@ -519,3 +522,47 @@ void __exit vpe_module_exit(void)
|
|
release_vpe(v);
|
|
}
|
|
}
|
|
+
|
|
+#ifdef CONFIG_IFX_VPE_EXT
|
|
+int32_t vpe1_sw_start(void *sw_start_addr, uint32_t tcmask, uint32_t flags)
|
|
+{
|
|
+ enum vpe_state state;
|
|
+ struct vpe *v = get_vpe(tclimit);
|
|
+ struct vpe_notifications *not;
|
|
+
|
|
+ if (tcmask || flags) {
|
|
+ pr_warn("Currently tcmask and flags should be 0. Other values are not supported\n");
|
|
+ return -1;
|
|
+ }
|
|
+
|
|
+ state = xchg(&v->state, VPE_STATE_INUSE);
|
|
+ if (state != VPE_STATE_UNUSED) {
|
|
+ vpe_stop(v);
|
|
+
|
|
+ list_for_each_entry(not, &v->notify, list) {
|
|
+ not->stop(tclimit);
|
|
+ }
|
|
+ }
|
|
+
|
|
+ v->__start = (unsigned long)sw_start_addr;
|
|
+
|
|
+ if (!vpe_run(v)) {
|
|
+ pr_debug("VPE loader: VPE1 running successfully\n");
|
|
+ return 0;
|
|
+ }
|
|
+ return -1;
|
|
+}
|
|
+EXPORT_SYMBOL(vpe1_sw_start);
|
|
+
|
|
+int32_t vpe1_sw_stop(uint32_t flags)
|
|
+{
|
|
+ struct vpe *v = get_vpe(tclimit);
|
|
+
|
|
+ if (!vpe_free(v)) {
|
|
+ pr_debug("RP Stopped\n");
|
|
+ return 0;
|
|
+ } else
|
|
+ return -1;
|
|
+}
|
|
+EXPORT_SYMBOL(vpe1_sw_stop);
|
|
+#endif
|
|
--- a/arch/mips/kernel/vpe.c
|
|
+++ b/arch/mips/kernel/vpe.c
|
|
@@ -49,6 +49,41 @@ struct vpe_control vpecontrol = {
|
|
.tc_list = LIST_HEAD_INIT(vpecontrol.tc_list)
|
|
};
|
|
|
|
+#ifdef CONFIG_IFX_VPE_EXT
|
|
+unsigned int vpe1_load_addr;
|
|
+
|
|
+static int __init load_address(char *str)
|
|
+{
|
|
+ get_option(&str, &vpe1_load_addr);
|
|
+ return 1;
|
|
+}
|
|
+__setup("vpe1_load_addr=", load_address);
|
|
+
|
|
+static unsigned int vpe1_mem;
|
|
+static int __init vpe1mem(char *str)
|
|
+{
|
|
+ vpe1_mem = memparse(str, &str);
|
|
+ return 1;
|
|
+}
|
|
+__setup("vpe1_mem=", vpe1mem);
|
|
+
|
|
+uint32_t vpe1_get_load_addr(uint32_t flags)
|
|
+{
|
|
+ return vpe1_load_addr;
|
|
+}
|
|
+EXPORT_SYMBOL(vpe1_get_load_addr);
|
|
+
|
|
+uint32_t vpe1_get_max_mem(uint32_t flags)
|
|
+{
|
|
+ if (!vpe1_mem)
|
|
+ return P_SIZE;
|
|
+ else
|
|
+ return vpe1_mem;
|
|
+}
|
|
+EXPORT_SYMBOL(vpe1_get_max_mem);
|
|
+
|
|
+#endif
|
|
+
|
|
/* get the vpe associated with this minor */
|
|
struct vpe *get_vpe(int minor)
|
|
{
|
|
--- a/arch/mips/lantiq/prom.c
|
|
+++ b/arch/mips/lantiq/prom.c
|
|
@@ -31,10 +31,14 @@ EXPORT_SYMBOL_GPL(ebu_lock);
|
|
*/
|
|
static struct ltq_soc_info soc_info;
|
|
|
|
+/* for Multithreading (APRP), vpe.c will use it */
|
|
+unsigned long cp0_memsize;
|
|
+
|
|
const char *get_system_type(void)
|
|
{
|
|
return soc_info.sys_type;
|
|
}
|
|
+EXPORT_SYMBOL(ltq_soc_type);
|
|
|
|
int ltq_soc_type(void)
|
|
{
|
|
--- a/arch/mips/include/asm/mipsmtregs.h
|
|
+++ b/arch/mips/include/asm/mipsmtregs.h
|
|
@@ -31,6 +31,9 @@
|
|
#define read_c0_vpeconf1() __read_32bit_c0_register($1, 3)
|
|
#define write_c0_vpeconf1(val) __write_32bit_c0_register($1, 3, val)
|
|
|
|
+#define read_c0_vpeopt() __read_32bit_c0_register($1, 7)
|
|
+#define write_c0_vpeopt(val) __write_32bit_c0_register($1, 7, val)
|
|
+
|
|
#define read_c0_tcstatus() __read_32bit_c0_register($2, 1)
|
|
#define write_c0_tcstatus(val) __write_32bit_c0_register($2, 1, val)
|
|
|
|
@@ -376,6 +379,8 @@ do { \
|
|
#define write_vpe_c0_vpeconf0(val) mttc0(1, 2, val)
|
|
#define read_vpe_c0_vpeconf1() mftc0(1, 3)
|
|
#define write_vpe_c0_vpeconf1(val) mttc0(1, 3, val)
|
|
+#define read_vpe_c0_vpeopt() mftc0(1, 7)
|
|
+#define write_vpe_c0_vpeopt(val) mttc0(1, 7, 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)
|