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target/ppc: Remove the function ppc_hash64_set_sdr1() 

The function ppc_hash64_set_sdr1 basically checked the htabsize and set an
error if it was too big, otherwise it just stored the value in SPR_SDR1.

Given that the only function which calls ppc_hash64_set_sdr1() is
ppc_store_sdr1(), why not handle the checking in ppc_store_sdr1() to avoid
the extra function call. Note that ppc_store_sdr1() already stores the
value in SPR_SDR1 anyway, so we were doing it twice.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Remove unnecessary error temporary]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Suraj Jitindar Singh 2017-02-24 12:05:12 +11:00 committed by David Gibson
parent e57ca75ce3
commit 8d63351f9f
3 changed files with 5 additions and 27 deletions
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18
target/ppc/mmu-hash64.c
View File

@ -289,24 +289,6 @@ target_ulong helper_load_slb_vsid(CPUPPCState *env, target_ulong rb)
return rt;
}
/*
* 64-bit hash table MMU handling
*/
void ppc_hash64_set_sdr1(PowerPCCPU *cpu, target_ulong value,
Error **errp)
{
CPUPPCState *env = &cpu->env;
target_ulong htabsize = value & SDR_64_HTABSIZE;
if (htabsize > 28) {
error_setg(errp,
"Invalid HTABSIZE 0x" TARGET_FMT_lx" stored in SDR1",
htabsize);
return;
}
env->spr[SPR_SDR1] = value;
}
static int ppc_hash64_pte_prot(PowerPCCPU *cpu,
ppc_slb_t *slb, ppc_hash_pte64_t pte)
{

3
target/ppc/mmu-hash64.h
View File

@ -109,9 +109,6 @@ static inline hwaddr ppc_hash64_hpt_mask(PowerPCCPU *cpu)
return (1ULL << ((cpu->env.spr[SPR_SDR1] & SDR_64_HTABSIZE) + 18 - 7)) - 1;
}
void ppc_hash64_set_sdr1(PowerPCCPU *cpu, target_ulong value,
Error **errp);
struct ppc_hash_pte64 {
uint64_t pte0, pte1;
};

11
target/ppc/mmu_helper.c
View File

@ -28,6 +28,7 @@
#include "exec/cpu_ldst.h"
#include "exec/log.h"
#include "helper_regs.h"
#include "qemu/error-report.h"
//#define DEBUG_MMU
//#define DEBUG_BATS
@ -2006,13 +2007,11 @@ void ppc_store_sdr1(CPUPPCState *env, target_ulong value)
assert(!cpu->vhyp);
#if defined(TARGET_PPC64)
if (env->mmu_model & POWERPC_MMU_64) {
PowerPCCPU *cpu = ppc_env_get_cpu(env);
Error *local_err = NULL;
target_ulong htabsize = value & SDR_64_HTABSIZE;
ppc_hash64_set_sdr1(cpu, value, &local_err);
if (local_err) {
error_report_err(local_err);
error_free(local_err);
if (htabsize > 28) {
error_report("Invalid HTABSIZE 0x" TARGET_FMT_lx" stored in SDR1",
htabsize);
return;
}
}