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authorSteve Reinhardt <stever@eecs.umich.edu>2006-10-08 04:29:40 -0400
committerSteve Reinhardt <stever@eecs.umich.edu>2006-10-08 04:29:40 -0400
commitc2f954ac692e664ba105f94c64c8c408cf1b4380 (patch)
treef8b183f6f0920902d81481a13a2c3b69097605af /src/kern
parentabc27ae6911cb9994cc1e718cced6ea291dca32d (diff)
downloadgem5-c2f954ac692e664ba105f94c64c8c408cf1b4380.tar.xz
Allocate new thread stacks and shared mem region via Process page table
for Tru64 thread library emulation. --HG-- extra : convert_revision : dbd307536e260e24ef79130d2aa88d84e33f03d4
Diffstat (limited to 'src/kern')
-rw-r--r--src/kern/tru64/tru64.hh39
1 files changed, 24 insertions, 15 deletions
diff --git a/src/kern/tru64/tru64.hh b/src/kern/tru64/tru64.hh
index 87ac88007..18671c364 100644
--- a/src/kern/tru64/tru64.hh
+++ b/src/kern/tru64/tru64.hh
@@ -588,16 +588,26 @@ class Tru64 : public OperatingSystem
argp.copyIn(tc->getMemPort());
+ int stack_size =
+ gtoh(argp->rsize) + gtoh(argp->ysize) + gtoh(argp->gsize);
+
// if the user chose an address, just let them have it. Otherwise
// pick one for them.
- if (htog(argp->address) == 0) {
- argp->address = htog(process->next_thread_stack_base);
- int stack_size = (htog(argp->rsize) + htog(argp->ysize) +
- htog(argp->gsize));
+ Addr stack_base = gtoh(argp->address);
+
+ if (stack_base == 0) {
+ stack_base = process->next_thread_stack_base;
process->next_thread_stack_base -= stack_size;
- argp.copyOut(tc->getMemPort());
}
+ stack_base = roundDown(stack_base, VMPageSize);
+
+ // map memory
+ process->pTable->allocate(stack_base, roundUp(stack_size, VMPageSize));
+
+ argp->address = gtoh(stack_base);
+ argp.copyOut(tc->getMemPort());
+
return 0;
}
@@ -633,7 +643,7 @@ class Tru64 : public OperatingSystem
abort();
}
- const Addr base_addr = 0x12000; // was 0x3f0000000LL;
+ Addr base_addr = 0x12000; // was 0x3f0000000LL;
Addr cur_addr = base_addr; // next addresses to use
// first comes the config_info struct
Addr config_addr = cur_addr;
@@ -659,8 +669,6 @@ class Tru64 : public OperatingSystem
config->nxm_slot_state = htog(slot_state_addr);
config->nxm_rad[0] = htog(rad_state_addr);
- config.copyOut(tc->getMemPort());
-
// initialize the slot_state array and copy it out
TypedBufferArg<Tru64::nxm_slot_state_t> slot_state(slot_state_addr,
slot_state_size);
@@ -672,8 +680,6 @@ class Tru64 : public OperatingSystem
(i == 0) ? Tru64::NXM_SLOT_BOUND : Tru64::NXM_SLOT_AVAIL;
}
- slot_state.copyOut(tc->getMemPort());
-
// same for the per-RAD "shared" struct. Note that we need to
// allocate extra bytes for the per-VP array which is embedded at
// the end.
@@ -706,17 +712,20 @@ class Tru64 : public OperatingSystem
}
}
- rad_state.copyOut(tc->getMemPort());
-
//
// copy pointer to shared config area out to user
//
*configptr_ptr = htog(config_addr);
- configptr_ptr.copyOut(tc->getMemPort());
// Register this as a valid address range with the process
- process->nxm_start = base_addr;
- process->nxm_end = cur_addr;
+ base_addr = roundDown(base_addr, VMPageSize);
+ int size = cur_addr - base_addr;
+ process->pTable->allocate(base_addr, roundUp(size, VMPageSize));
+
+ config.copyOut(tc->getMemPort());
+ slot_state.copyOut(tc->getMemPort());
+ rad_state.copyOut(tc->getMemPort());
+ configptr_ptr.copyOut(tc->getMemPort());
return 0;
}