Patchwork [v5,26/33] target-xtensa: implement CPENABLE and PRID SRs

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Submitter Max Filippov
Date Sept. 5, 2011, 11:55 p.m.
Message ID <1315266957-22979-27-git-send-email-jcmvbkbc@gmail.com>
Download mbox | patch
Permalink /patch/113447/
State New
Headers show

Comments

Max Filippov - Sept. 5, 2011, 11:55 p.m.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
 hw/xtensa_sample.c        |    1 +
 target-xtensa/cpu.h       |    2 ++
 target-xtensa/translate.c |    7 +++++++
 3 files changed, 10 insertions(+), 0 deletions(-)

Patch

diff --git a/hw/xtensa_sample.c b/hw/xtensa_sample.c
index 0aeb7c8..31a6f70 100644
--- a/hw/xtensa_sample.c
+++ b/hw/xtensa_sample.c
@@ -55,6 +55,7 @@  static void xtensa_init(ram_addr_t ram_size,
             exit(1);
         }
         qemu_register_reset(xtensa_sample_reset, env);
+        env->sregs[PRID] = n;
     }
 
     ram = g_malloc(sizeof(*ram));
diff --git a/target-xtensa/cpu.h b/target-xtensa/cpu.h
index 474466c..37f8b7f 100644
--- a/target-xtensa/cpu.h
+++ b/target-xtensa/cpu.h
@@ -118,12 +118,14 @@  enum {
     DEPC = 192,
     EPS2 = 194,
     EXCSAVE1 = 209,
+    CPENABLE = 224,
     INTSET = 226,
     INTCLEAR = 227,
     INTENABLE = 228,
     PS = 230,
     EXCCAUSE = 232,
     CCOUNT = 234,
+    PRID = 235,
     EXCVADDR = 238,
     CCOMPARE = 240,
 };
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c
index cee1f1c..d08b0ca 100644
--- a/target-xtensa/translate.c
+++ b/target-xtensa/translate.c
@@ -101,12 +101,14 @@  static const char * const sregnames[256] = {
     [EXCSAVE1 + 4] = "EXCSAVE5",
     [EXCSAVE1 + 5] = "EXCSAVE6",
     [EXCSAVE1 + 6] = "EXCSAVE7",
+    [CPENABLE] = "CPENABLE",
     [INTSET] = "INTSET",
     [INTCLEAR] = "INTCLEAR",
     [INTENABLE] = "INTENABLE",
     [PS] = "PS",
     [EXCCAUSE] = "EXCCAUSE",
     [CCOUNT] = "CCOUNT",
+    [PRID] = "PRID",
     [EXCVADDR] = "EXCVADDR",
     [CCOMPARE] = "CCOMPARE0",
     [CCOMPARE + 1] = "CCOMPARE1",
@@ -476,6 +478,10 @@  static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v)
     gen_jumpi_check_loop_end(dc, -1);
 }
 
+static void gen_wsr_prid(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+}
+
 static void gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v)
 {
     uint32_t id = sr - CCOMPARE;
@@ -502,6 +508,7 @@  static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s)
         [INTCLEAR] = gen_wsr_intclear,
         [INTENABLE] = gen_wsr_intenable,
         [PS] = gen_wsr_ps,
+        [PRID] = gen_wsr_prid,
         [CCOMPARE] = gen_wsr_ccompare,
         [CCOMPARE + 1] = gen_wsr_ccompare,
         [CCOMPARE + 2] = gen_wsr_ccompare,