Gabe Black has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/31755 )
Change subject: misc: Replace scalar TypedBufferArg with VPtr.
......................................................................
misc: Replace scalar TypedBufferArg with VPtr.
Change-Id: Ic8460ad133e3512c103b14820d90ee3df987d78d
---
M src/arch/arm/aapcs32.hh
M src/arch/arm/aapcs64.hh
M src/dev/hsa/hsa_driver.cc
M src/dev/hsa/hsa_packet_processor.cc
M src/sim/syscall_emul.cc
M src/sim/syscall_emul.hh
6 files changed, 21 insertions(+), 36 deletions(-)
diff --git a/src/arch/arm/aapcs32.hh b/src/arch/arm/aapcs32.hh
index e2e5d09..01663ff 100644
--- a/src/arch/arm/aapcs32.hh
+++ b/src/arch/arm/aapcs32.hh
@@ -38,7 +38,7 @@
#include "base/intmath.hh"
#include "cpu/thread_context.hh"
#include "sim/guest_abi.hh"
-#include "sim/syscall_emul_buf.hh"
+#include "sim/proxy_ptr.hh"
class ThreadContext;
@@ -113,8 +113,7 @@
state.nsaa = roundUp(state.nsaa, align);
// Extract the value from it.
- TypedBufferArg<T> val(state.nsaa);
- val.copyIn(tc->getVirtProxy());
+ ConstVPtr<T> val(state.nsaa, tc);
// Move the nsaa past this argument.
state.nsaa += size;
@@ -284,9 +283,8 @@
val = gtoh(val, ArmISA::byteOrder(tc));
tc->setIntReg(ArmISA::INTREG_R0, val);
} else {
- TypedBufferArg<Composite> cp(state.retAddr);
- cp = htog(composite, ArmISA::byteOrder(tc));
- cp.copyOut(tc->getVirtProxy());
+ VPtr<Composite> cp(state.retAddr, tc);
+ *cp = htog(composite, ArmISA::byteOrder(tc));
}
}
diff --git a/src/arch/arm/aapcs64.hh b/src/arch/arm/aapcs64.hh
index 30597f5..0c11215 100644
--- a/src/arch/arm/aapcs64.hh
+++ b/src/arch/arm/aapcs64.hh
@@ -38,7 +38,7 @@
#include "base/intmath.hh"
#include "cpu/thread_context.hh"
#include "sim/guest_abi.hh"
-#include "sim/syscall_emul_buf.hh"
+#include "sim/proxy_ptr.hh"
class ThreadContext;
@@ -158,8 +158,7 @@
state.nsaa = roundUp(state.nsaa, align);
// Extract the value from it.
- TypedBufferArg<T> val(state.nsaa);
- val.copyIn(tc->getVirtProxy());
+ ConstVPtr<T> val(state.nsaa, tc);
// Move the nsaa past this argument.
state.nsaa += size;
@@ -350,8 +349,7 @@
// kept in a buffer, and the argument is actually a pointer to
that
// buffer.
Addr addr = Argument<Aapcs64, Addr>::get(tc, state);
- TypedBufferArg<Composite> composite(addr);
- composite.copyIn(tc->getVirtProxy());
+ ConstVPtr<Composite> composite(addr, tc);
return gtoh(*composite, ArmISA::byteOrder(tc));
}
@@ -393,7 +391,7 @@
{
if (sizeof(Composite) > 16) {
Addr addr = tc->readIntReg(ArmISA::INTREG_X8);
- TypedBufferArg<Composite> composite(addr);
+ VPtr<Composite> composite(addr, tc);
*composite = htog(c, ArmISA::byteOrder(tc));
return;
}
diff --git a/src/dev/hsa/hsa_driver.cc b/src/dev/hsa/hsa_driver.cc
index 459043d..a1215c4 100644
--- a/src/dev/hsa/hsa_driver.cc
+++ b/src/dev/hsa/hsa_driver.cc
@@ -42,7 +42,7 @@
#include "dev/hsa/kfd_ioctl.h"
#include "params/HSADriver.hh"
#include "sim/process.hh"
-#include "sim/syscall_emul_buf.hh"
+#include "sim/proxy_ptr.hh"
HSADriver::HSADriver(HSADriverParams *p)
: EmulatedDriver(p), device(p->device), queueId(0)
diff --git a/src/dev/hsa/hsa_packet_processor.cc
b/src/dev/hsa/hsa_packet_processor.cc
index 4143019..f6da9cb 100644
--- a/src/dev/hsa/hsa_packet_processor.cc
+++ b/src/dev/hsa/hsa_packet_processor.cc
@@ -47,7 +47,7 @@
#include "mem/packet_access.hh"
#include "mem/page_table.hh"
#include "sim/process.hh"
-#include "sim/syscall_emul_buf.hh"
+#include "sim/proxy_ptr.hh"
#include "sim/system.hh"
#define HSAPP_EVENT_DESCRIPTION_GENERATOR(XEVENT) \
@@ -408,13 +408,10 @@
* The reason for this is that the DMASequencer does
* not support atomic operations.
*/
- auto tc = sys->threads[0];
- auto &virt_proxy = tc->getVirtProxy();
- TypedBufferArg<uint64_t> prev_signal(signal_addr);
- prev_signal.copyIn(virt_proxy);
+ VPtr<uint64_t> prev_signal(signal_addr, sys->threads[0]);
hsa_signal_value_t *new_signal = new hsa_signal_value_t;
- *new_signal = (hsa_signal_value_t) *prev_signal - 1;
+ *new_signal = (hsa_signal_value_t)*prev_signal - 1;
dmaWriteVirt(signal_addr,
sizeof(hsa_signal_value_t), NULL, new_signal,
0);
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index 4a41609..b271a5f 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -47,6 +47,7 @@
#include "mem/page_table.hh"
#include "sim/byteswap.hh"
#include "sim/process.hh"
+#include "sim/proxy_ptr.hh"
#include "sim/sim_exit.hh"
#include "sim/syscall_debug_macros.hh"
#include "sim/syscall_desc.hh"
@@ -1636,24 +1637,17 @@
SyscallReturn
getcpuFunc(SyscallDesc *desc, ThreadContext *tc,
- Addr cpu_ptr, Addr node_ptr, Addr tcache_ptr)
+ VPtr<uint32_t> cpu, VPtr<uint32_t> node, VPtr<uint32_t> tcache)
{
bool error = false;
// unsigned is the same size (4) on all Linux supported ISAs.
- if (cpu_ptr != 0) {
- TypedBufferArg<uint32_t> result(cpu_ptr);
- *result = htog(tc->contextId(),
- tc->getSystemPtr()->getGuestByteOrder());
- error |= !result.copyOut(tc->getVirtProxy());
- }
+ if (cpu)
+ *cpu = htog(tc->contextId(),
tc->getSystemPtr()->getGuestByteOrder());
// Set a fixed NUMA node 0.
- if (node_ptr != 0) {
- TypedBufferArg<uint32_t> result(node_ptr);
- *result = 0;
- error |= !result.copyOut(tc->getVirtProxy());
- }
+ if (node != 0)
+ *node = 0;
- return error ? -EFAULT : 0;
+ return 0;
}
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index f793dfd..31c1d4c 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -1933,7 +1933,8 @@
/// Target utimes() handler.
template <class OS>
SyscallReturn
-utimesFunc(SyscallDesc *desc, ThreadContext *tc, Addr pathname, Addr times)
+utimesFunc(SyscallDesc *desc, ThreadContext *tc, Addr pathname,
+ VPtr<typename OS::timeval [2]> tp)
{
std::string path;
auto process = tc->getProcessPtr();
@@ -1941,9 +1942,6 @@
if (!tc->getVirtProxy().tryReadString(path, pathname))
return -EFAULT;
- TypedBufferArg<typename OS::timeval [2]> tp(times);
- tp.copyIn(tc->getVirtProxy());
-
struct timeval hostTimeval[2];
for (int i = 0; i < 2; ++i) {
hostTimeval[i].tv_sec = gtoh((*tp)[i].tv_sec, OS::byteOrder);
--
To view, visit https://gem5-review.googlesource.com/c/public/gem5/+/31755
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ic8460ad133e3512c103b14820d90ee3df987d78d
Gerrit-Change-Number: 31755
Gerrit-PatchSet: 1
Gerrit-Owner: Gabe Black <gabebl...@google.com>
Gerrit-MessageType: newchange
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