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authorRichard Henderson <richard.henderson@linaro.org>2018-05-22 22:04:46 -0700
committerStafford Horne <shorne@gmail.com>2018-07-03 00:05:28 +0900
commit1cc9e5d896695091eeb126f5c578b02ddd0fc0e4 (patch)
tree71efab11d996bde34b4f58531487adb52cc80cdd /target
parent5ce5dad3527e024c297f73f9eb79098235efba6b (diff)
target/openrisc: Increase the TLB size
The architecture supports 128 TLB entries. There is no reason not to provide all of them. In the process we need to fix a bug that failed to parameterize the configuration register that tells the operating system the number of entries. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Stafford Horne <shorne@gmail.com> --- v2: - Change VMState version.
Diffstat (limited to 'target')
-rw-r--r--target/openrisc/cpu.c6
-rw-r--r--target/openrisc/cpu.h2
-rw-r--r--target/openrisc/machine.c5
3 files changed, 7 insertions, 6 deletions
diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c
index b92de51ecf..e01ce9ed1c 100644
--- a/target/openrisc/cpu.c
+++ b/target/openrisc/cpu.c
@@ -57,8 +57,10 @@ static void openrisc_cpu_reset(CPUState *s)
cpu->env.upr = UPR_UP | UPR_DMP | UPR_IMP | UPR_PICP | UPR_TTP |
UPR_PMP;
- cpu->env.dmmucfgr = (DMMUCFGR_NTW & (0 << 2)) | (DMMUCFGR_NTS & (6 << 2));
- cpu->env.immucfgr = (IMMUCFGR_NTW & (0 << 2)) | (IMMUCFGR_NTS & (6 << 2));
+ cpu->env.dmmucfgr = (DMMUCFGR_NTW & (0 << 2))
+ | (DMMUCFGR_NTS & (ctz32(TLB_SIZE) << 2));
+ cpu->env.immucfgr = (IMMUCFGR_NTW & (0 << 2))
+ | (IMMUCFGR_NTS & (ctz32(TLB_SIZE) << 2));
#ifndef CONFIG_USER_ONLY
cpu->env.picmr = 0x00000000;
diff --git a/target/openrisc/cpu.h b/target/openrisc/cpu.h
index 47e94659e1..b180e30e9e 100644
--- a/target/openrisc/cpu.h
+++ b/target/openrisc/cpu.h
@@ -222,7 +222,7 @@ enum {
/* TLB size */
enum {
- TLB_SIZE = 64,
+ TLB_SIZE = 128,
TLB_MASK = TLB_SIZE - 1,
};
diff --git a/target/openrisc/machine.c b/target/openrisc/machine.c
index 3fc837b925..1eedbf3dbe 100644
--- a/target/openrisc/machine.c
+++ b/target/openrisc/machine.c
@@ -38,9 +38,8 @@ static const VMStateDescription vmstate_tlb_entry = {
static const VMStateDescription vmstate_cpu_tlb = {
.name = "cpu_tlb",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
+ .version_id = 2,
+ .minimum_version_id = 2,
.fields = (VMStateField[]) {
VMSTATE_STRUCT_ARRAY(itlb, CPUOpenRISCTLBContext, TLB_SIZE, 0,
vmstate_tlb_entry, OpenRISCTLBEntry),