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mirror_qemu/target-ppc/mmu-hash32.h

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target-ppc: Disentangle pte_check() Currently support for both 32-bit and 64-bit hash MMUs share an implementation of pte_check. But there are enough differences that this means the shared function has several very ugly conditionals on "is_64b". This patch cleans things up by separating out the 64-bit version (putting it into mmu-hash64.c) and the 32-bit hash version (putting it in mmu-hash32.c). Another copy remains in mmu_helper.c, which is used for the 6xx software loaded TLB paths. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-12 04:31:07 +04:00
#if !defined (__MMU_HASH32_H__)
#define __MMU_HASH32_H__
#ifndef CONFIG_USER_ONLY
int pte32_is_valid(target_ulong pte0);
target-ppc: Disentangle get_physical_address() paths Depending on the MSR state, for 64-bit hash MMUs, get_physical_address can either call check_physical (which has further tests for mmu type) or get_segment64. Similarly for 32-bit hash MMUs we can either call check_physucal or get_bat() and get_segment32(). This patch splits off the whole get_physical_addresss() path for hash MMUs into 32-bit and 64-bit versions, handling real mode correctly for such MMUs without going to check_physical and rechecking the mmu type. Correspondingly, the hash MMU specific paths in check_physical() are removed. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-12 04:31:11 +04:00
int ppc_hash32_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
target_ulong eaddr, int rw, int access_type);
target-ppc: Disentangle hash mmu paths for cpu_ppc_handle_mmu_fault cpu_ppc_handle_mmu_fault() calls get_physical_address() (whose behaviour depends on MMU type) then, if that fails, issues an appropriate exception - which again has a number of dependencies on MMU type. This patch starts converting cpu_ppc_handle_mmu_fault() to have a single switch on MMU type, calling MMU specific fault handler functions which deal with both translation and exception delivery appropriately for the MMU type. We convert 32-bit and 64-bit hash MMUs to this new model, but the existing code is left in place for other MMU types for now. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-12 04:31:12 +04:00
int ppc_hash32_handle_mmu_fault(CPUPPCState *env, target_ulong address, int rw,
int mmu_idx);
target-ppc: Disentangle pte_check() Currently support for both 32-bit and 64-bit hash MMUs share an implementation of pte_check. But there are enough differences that this means the shared function has several very ugly conditionals on "is_64b". This patch cleans things up by separating out the 64-bit version (putting it into mmu-hash64.c) and the 32-bit hash version (putting it in mmu-hash32.c). Another copy remains in mmu_helper.c, which is used for the 6xx software loaded TLB paths. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-12 04:31:07 +04:00
#endif /* CONFIG_USER_ONLY */
#endif /* __MMU_HASH32_H__ */