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[4/9] PPC: Add L1CFG1 SPR emulation

Message ID 1400171570-21284-5-git-send-email-agraf@suse.de
State New
Headers show

Commit Message

Alexander Graf May 15, 2014, 4:32 p.m. UTC 
In addition to the L1 data cache configuration register L1CFG0 there is
also another one for the L1 instruction cache called L1CFG1.

Emulate that one with the same values as the data one.

Signed-off-by: Alexander Graf <agraf@suse.de>

---

v1 -> v2:

  - correct permission access to USER_RO
---
 target-ppc/cpu.h            | 1 +
 target-ppc/translate_init.c | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)
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Patch

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 178fc55..f36c90b 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1375,6 +1375,7 @@  static inline int cpu_mmu_index (CPUPPCState *env)
 #define SPR_Exxx_BBEAR        (0x201)
 #define SPR_Exxx_BBTAR        (0x202)
 #define SPR_Exxx_L1CFG0       (0x203)
+#define SPR_Exxx_L1CFG1       (0x204)
 #define SPR_Exxx_NPIDR        (0x205)
 #define SPR_ATBL              (0x20E)
 #define SPR_ATBU              (0x20F)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 07f723d..fc9d932 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -4651,6 +4651,8 @@  static void init_proc_e500 (CPUPPCState *env, int version)
     uint64_t ivpr_mask = 0xFFFF0000ULL;
     uint32_t l1cfg0 = 0x3800  /* 8 ways */
                     | 0x0020; /* 32 kb */
+    uint32_t l1cfg1 = 0x3800  /* 8 ways */
+                    | 0x0020; /* 32 kb */
 #if !defined(CONFIG_USER_ONLY)
     int i;
 #endif
@@ -4719,6 +4721,7 @@  static void init_proc_e500 (CPUPPCState *env, int version)
         env->dcache_line_size = 64;
         env->icache_line_size = 64;
         l1cfg0 |= 0x1000000; /* 64 byte cache block size */
+        l1cfg1 |= 0x1000000; /* 64 byte cache block size */
         break;
     default:
         cpu_abort(CPU(cpu), "Unknown CPU: " TARGET_FMT_lx "\n", env->spr[SPR_PVR]);
@@ -4769,7 +4772,10 @@  static void init_proc_e500 (CPUPPCState *env, int version)
                  &spr_read_generic, SPR_NOACCESS,
                  &spr_read_generic, SPR_NOACCESS,
                  l1cfg0);
-    /* XXX : not implemented */
+    spr_register(env, SPR_Exxx_L1CFG1, "L1CFG1",
+                 &spr_read_generic, SPR_NOACCESS,
+                 &spr_read_generic, SPR_NOACCESS,
+                 l1cfg1);
     spr_register(env, SPR_Exxx_L1CSR0, "L1CSR0",
                  SPR_NOACCESS, SPR_NOACCESS,
                  &spr_read_generic, &spr_write_e500_l1csr0,