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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
target-ppc: Don't share get_pteg_offset() between 32 and 64-bit The get_pteg_offset() helper function is currently shared between 32-bit and 64-bit hash mmus, taking a parameter for the hash pte size. In the 64-bit paths, it's only called in one place, and it's a trivial calculation. This patch, therefore, open codes it for 64-bit. The remaining version, which is used in two places is made 32-bit only and moved to mmu-hash32.c. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-12 04:31:15 +04:00
hwaddr get_pteg_offset32(CPUPPCState *env, hwaddr hash);
target-ppc: Disentangle hash mmu versions of cpu_get_phys_page_debug() cpu_get_phys_page_debug() is a trivial wrapper around get_physical_address(). But even the signature of get_physical_address() has some things we'd like to clean up on a per-mmu basis, so this patch moves the test on mmu model out to cpu_get_phys_page_debug(), moving the version for 64-bit hash MMUs out to mmu-hash64.c and the version for 32-bit hash MMUs to mmu-hash32.c Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-12 04:31:13 +04:00
hwaddr ppc_hash32_get_phys_page_debug(CPUPPCState *env, target_ulong addr);
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__ */