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From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Andrew Morton <akpm@linux-foundation.org>,
	Jason Gunthorpe <jgg@nvidia.com>, Peter Xu <peterx@redhat.com>,
	Oscar Salvador <osalvador@suse.de>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v7 03/23] powerpc/64e: Drop E500 ifdefs in 64-bit code
Date: Tue,  2 Jul 2024 15:51:15 +0200	[thread overview]
Message-ID: <7fb88809c88a1b774063eda602a9333079403f83.1719928057.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <cover.1719928057.git.christophe.leroy@csgroup.eu>

From: Michael Ellerman <mpe@ellerman.id.au>

All 64-bit Book3E have E500=y, so drop the unneeded ifdefs.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
 arch/powerpc/mm/nohash/tlb_64e.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/arch/powerpc/mm/nohash/tlb_64e.c b/arch/powerpc/mm/nohash/tlb_64e.c
index 7d5506d23eab..9db85ee9ba5b 100644
--- a/arch/powerpc/mm/nohash/tlb_64e.c
+++ b/arch/powerpc/mm/nohash/tlb_64e.c
@@ -85,7 +85,6 @@ static void __init setup_page_sizes(void)
 	unsigned int eptcfg;
 	int psize;
 
-#ifdef CONFIG_PPC_E500
 	unsigned int mmucfg = mfspr(SPRN_MMUCFG);
 	int fsl_mmu = mmu_has_feature(MMU_FTR_TYPE_FSL_E);
 
@@ -151,7 +150,6 @@ static void __init setup_page_sizes(void)
 
 		goto out;
 	}
-#endif
 out:
 	/* Cleanup array and print summary */
 	pr_info("MMU: Supported page sizes\n");
@@ -180,13 +178,11 @@ static void __init setup_mmu_htw(void)
 	 */
 
 	switch (book3e_htw_mode) {
-#ifdef CONFIG_PPC_E500
 	case PPC_HTW_E6500:
 		extlb_level_exc = EX_TLB_SIZE;
 		patch_exception(0x1c0, exc_data_tlb_miss_e6500_book3e);
 		patch_exception(0x1e0, exc_instruction_tlb_miss_e6500_book3e);
 		break;
-#endif
 	}
 	pr_info("MMU: Book3E HW tablewalk %s\n",
 		book3e_htw_mode != PPC_HTW_NONE ? "enabled" : "not supported");
@@ -217,7 +213,6 @@ static void early_init_this_mmu(void)
 	}
 	mtspr(SPRN_MAS4, mas4);
 
-#ifdef CONFIG_PPC_E500
 	if (mmu_has_feature(MMU_FTR_TYPE_FSL_E)) {
 		unsigned int num_cams;
 		bool map = true;
@@ -238,7 +233,6 @@ static void early_init_this_mmu(void)
 			linear_map_top = map_mem_in_cams(linear_map_top,
 							 num_cams, false, true);
 	}
-#endif
 
 	/* A sync won't hurt us after mucking around with
 	 * the MMU configuration
@@ -270,7 +264,6 @@ static void __init early_init_mmu_global(void)
 	/* Look for HW tablewalk support */
 	setup_mmu_htw();
 
-#ifdef CONFIG_PPC_E500
 	if (mmu_has_feature(MMU_FTR_TYPE_FSL_E)) {
 		if (book3e_htw_mode == PPC_HTW_NONE) {
 			extlb_level_exc = EX_TLB_SIZE;
@@ -279,7 +272,6 @@ static void __init early_init_mmu_global(void)
 				exc_instruction_tlb_miss_bolted_book3e);
 		}
 	}
-#endif
 
 	/* Set the global containing the top of the linear mapping
 	 * for use by the TLB miss code
@@ -291,7 +283,6 @@ static void __init early_init_mmu_global(void)
 
 static void __init early_mmu_set_memory_limit(void)
 {
-#ifdef CONFIG_PPC_E500
 	if (mmu_has_feature(MMU_FTR_TYPE_FSL_E)) {
 		/*
 		 * Limit memory so we dont have linear faults.
@@ -302,7 +293,6 @@ static void __init early_mmu_set_memory_limit(void)
 		 */
 		memblock_enforce_memory_limit(linear_map_top);
 	}
-#endif
 
 	memblock_set_current_limit(linear_map_top);
 }
@@ -340,7 +330,6 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base,
 	 * We crop it to the size of the first MEMBLOCK to
 	 * avoid going over total available memory just in case...
 	 */
-#ifdef CONFIG_PPC_E500
 	if (early_mmu_has_feature(MMU_FTR_TYPE_FSL_E)) {
 		unsigned long linear_sz;
 		unsigned int num_cams;
@@ -353,7 +342,6 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base,
 
 		ppc64_rma_size = min_t(u64, linear_sz, 0x40000000);
 	} else
-#endif
 		ppc64_rma_size = min_t(u64, first_memblock_size, 0x40000000);
 
 	/* Finally limit subsequent allocations */
-- 
2.44.0



  parent reply	other threads:[~2024-07-02 13:51 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-02 13:51 [PATCH v7 00/23] Reimplement huge pages without hugepd on powerpc (8xx, e500, book3s/64) Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 01/23] powerpc/64e: Remove unused IBM HTW code Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 02/23] powerpc/64e: Split out nohash Book3E 64-bit code Christophe Leroy
2024-07-02 13:51 ` Christophe Leroy [this message]
2024-07-02 13:51 ` [PATCH v7 04/23] powerpc/64e: Drop MMU_FTR_TYPE_FSL_E checks in " Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 05/23] powerpc/64e: Consolidate TLB miss handler patching Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 06/23] powerpc/64e: Drop unused TLB miss handlers Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 07/23] mm: Define __pte_leaf_size() to also take a PMD entry Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 08/23] mm: Provide mm_struct and address to huge_ptep_get() Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 09/23] powerpc/mm: Remove _PAGE_PSIZE Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 10/23] powerpc/mm: Fix __find_linux_pte() on 32 bits with PMD leaf entries Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 11/23] powerpc/mm: Allow hugepages without hugepd Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 12/23] powerpc/8xx: Fix size given to set_huge_pte_at() Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 13/23] powerpc/8xx: Rework support for 8M pages using contiguous PTE entries Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 14/23] powerpc/8xx: Simplify struct mmu_psize_def Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 15/23] powerpc/e500: Remove enc and ind fields from " Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 16/23] powerpc/e500: Switch to 64 bits PGD on 85xx (32 bits) Christophe Leroy
2024-07-29 22:10   ` Guenter Roeck
2024-07-31 15:36     ` LEROY Christophe
2024-07-31 16:35       ` Guenter Roeck
     [not found]         ` <b73e991e-5f66-455e-a271-e10511ebeaef@csgroup.eu>
     [not found]           ` <5cc43ed9-b4f8-49f5-99ee-b411bb144085@roeck-us.net>
     [not found]             ` <17eed040-969e-4d2c-b20b-ecfd93450901@csgroup.eu>
2024-08-08 15:21               ` Guenter Roeck
2024-07-02 13:51 ` [PATCH v7 17/23] powerpc/e500: Encode hugepage size in PTE bits Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 18/23] powerpc/e500: Don't pre-check write access on data TLB error Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 19/23] powerpc/e500: Free r10 for FIND_PTE Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 20/23] powerpc/e500: Use contiguous PMD instead of hugepd Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 21/23] powerpc/64s: Use contiguous PMD/PUD instead of HUGEPD Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 22/23] powerpc/mm: Remove hugepd leftovers Christophe Leroy
2024-07-02 13:51 ` [PATCH v7 23/23] mm: Remove CONFIG_ARCH_HAS_HUGEPD Christophe Leroy

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