SvNNTest needs 32KB of RAM. (#428)

Also change the test itself to require less RAM than it did previously.
(It had required more than 32KB.)

2 files changed, 7 insertions, 4 deletions

diff --git a/debug/gdbserver.py b/debug/gdbserver.py
index d567a85..cc054a4 100755
--- a/debug/gdbserver.py
+++ b/debug/gdbserver.py
@@ -1639,6 +1639,9 @@ class CheckMisa(GdbTest):
 class TranslateTest(GdbSingleHartTest):
     compile_args = ("programs/translate.c", )
 
+    def early_applicable(self):
+        return self.hart.ram_size >= 32 * 1024
+
     def setup(self):
         self.disable_pmp()
 
@@ -1682,7 +1685,7 @@ SATP_MODE_SV64 = 11
 
 class Sv32Test(TranslateTest):
     def early_applicable(self):
-        return self.hart.xlen == 32
+        return TranslateTest.early_applicable(self) and self.hart.xlen == 32
 
     def test(self):
         self.check_satp(SATP_MODE_SV32)
@@ -1691,7 +1694,7 @@ class Sv32Test(TranslateTest):
 
 class Sv39Test(TranslateTest):
     def early_applicable(self):
-        return self.hart.xlen > 32
+        return TranslateTest.early_applicable(self) and self.hart.xlen > 32
 
     def test(self):
         self.check_satp(SATP_MODE_SV39)
@@ -1700,7 +1703,7 @@ class Sv39Test(TranslateTest):
 
 class Sv48Test(TranslateTest):
     def early_applicable(self):
-        return self.hart.xlen > 32
+        return TranslateTest.early_applicable(self) and self.hart.xlen > 32
 
     def test(self):
         self.check_satp(SATP_MODE_SV48)
diff --git a/debug/programs/translate.c b/debug/programs/translate.c
index 19f72ff..59dffd6 100644
--- a/debug/programs/translate.c
+++ b/debug/programs/translate.c
@@ -13,7 +13,7 @@ typedef uint64_t reg_t;
 typedef uint32_t reg_t;
 #endif
 
-static char page_buffer[4096 * 8];
+static char page_buffer[4096 * 6];
 static char *page_buffer_next = page_buffer;
 
 typedef struct {