linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
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: [RFC PATCH v2 12/20] powerpc/64e: Remove unneeded #ifdef CONFIG_PPC_E500
Date: Fri, 17 May 2024 21:00:06 +0200	[thread overview]
Message-ID: <f70e5249b9e6a9a06e6575aa0efbaf8ba93c3659.1715971869.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <cover.1715971869.git.christophe.leroy@csgroup.eu>

When it is a nohash/64 it can't be anything else than
CONFIG_PPC_E500 so remove the #ifdef as they are always true.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
 arch/powerpc/mm/nohash/tlb.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/arch/powerpc/mm/nohash/tlb.c b/arch/powerpc/mm/nohash/tlb.c
index 5ffa0af4328a..d16f1ef7516c 100644
--- a/arch/powerpc/mm/nohash/tlb.c
+++ b/arch/powerpc/mm/nohash/tlb.c
@@ -403,8 +403,6 @@ static void __init setup_page_sizes(void)
 	unsigned int tlb0ps;
 	unsigned int eptcfg;
 	int i, psize;
-
-#ifdef CONFIG_PPC_E500
 	unsigned int mmucfg = mfspr(SPRN_MMUCFG);
 	int fsl_mmu = mmu_has_feature(MMU_FTR_TYPE_FSL_E);
 
@@ -470,7 +468,6 @@ static void __init setup_page_sizes(void)
 
 		goto out;
 	}
-#endif
 
 	tlb0cfg = mfspr(SPRN_TLB0CFG);
 	tlb0ps = mfspr(SPRN_TLB0PS);
@@ -547,13 +544,11 @@ static void __init setup_mmu_htw(void)
 		patch_exception(0x1c0, exc_data_tlb_miss_htw_book3e);
 		patch_exception(0x1e0, exc_instruction_tlb_miss_htw_book3e);
 		break;
-#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");
@@ -590,7 +585,6 @@ 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;
@@ -611,7 +605,6 @@ 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
@@ -643,7 +636,6 @@ 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;
@@ -652,7 +644,6 @@ 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
@@ -664,7 +655,6 @@ 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.
@@ -675,7 +665,6 @@ static void __init early_mmu_set_memory_limit(void)
 		 */
 		memblock_enforce_memory_limit(linear_map_top);
 	}
-#endif
 
 	memblock_set_current_limit(linear_map_top);
 }
@@ -713,7 +702,6 @@ 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;
@@ -726,7 +714,6 @@ 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:[~2024-05-17 19:00 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-17 18:59 [RFC PATCH v2 00/20] Reimplement huge pages without hugepd on powerpc (8xx, e500, book3s/64) Christophe Leroy
2024-05-17 18:59 ` [RFC PATCH v2 01/20] mm: Provide pagesize to pmd_populate() Christophe Leroy
2024-05-20  9:01   ` Oscar Salvador
2024-05-20 16:24     ` Christophe Leroy
2024-05-21 11:57       ` Oscar Salvador
2024-05-22  8:37         ` Christophe Leroy
2024-05-17 18:59 ` [RFC PATCH v2 02/20] mm: Provide page size to pte_alloc_huge() Christophe Leroy
2024-05-17 18:59 ` [RFC PATCH v2 03/20] mm: Provide pmd to pte_leaf_size() Christophe Leroy
2024-05-21  9:39   ` Oscar Salvador
2024-05-22 10:22     ` Christophe Leroy
2024-05-17 18:59 ` [RFC PATCH v2 04/20] mm: Provide mm_struct and address to huge_ptep_get() Christophe Leroy
2024-05-17 18:59 ` [RFC PATCH v2 05/20] powerpc/mm: Allow hugepages without hugepd Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 06/20] powerpc/8xx: Fix size given to set_huge_pte_at() Christophe Leroy
2024-05-20  9:14   ` Oscar Salvador
2024-05-20 16:31     ` Christophe Leroy
2024-05-20 17:42       ` Oscar Salvador
2024-05-22  8:45         ` Christophe Leroy
2024-05-21  0:48       ` Michael Ellerman
2024-05-21  9:26         ` Oscar Salvador
2024-05-22  8:32           ` Christophe Leroy
2024-05-22 12:18             ` Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 07/20] powerpc/8xx: Rework support for 8M pages using contiguous PTE entries Christophe Leroy
2024-05-24 10:02   ` Oscar Salvador
2024-05-24 11:47     ` Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 08/20] powerpc/8xx: Simplify struct mmu_psize_def Christophe Leroy
2024-05-25  3:36   ` Oscar Salvador
2024-05-17 19:00 ` [RFC PATCH v2 09/20] powerpc/mm: Remove _PAGE_PSIZE Christophe Leroy
2024-05-25  3:40   ` Oscar Salvador
2024-05-17 19:00 ` [RFC PATCH v2 10/20] powerpc/mm: Fix __find_linux_pte() on 32 bits with PMD leaf entries Christophe Leroy
2024-05-25  4:12   ` Oscar Salvador
2024-05-25  6:41     ` Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 11/20] powerpc/mm: Complement huge_pte_alloc() for all non HUGEPD setups Christophe Leroy
2024-05-25  4:29   ` Oscar Salvador
2024-05-25  6:44     ` Christophe Leroy
2024-05-25 10:33       ` Oscar Salvador
2024-05-17 19:00 ` Christophe Leroy [this message]
2024-05-24  7:31   ` [RFC PATCH v2 12/20] powerpc/64e: Remove unneeded #ifdef CONFIG_PPC_E500 Michael Ellerman
2024-05-24  8:45     ` Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 13/20] powerpc/64e: Clean up impossible setups Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 14/20] powerpc/e500: Remove enc field from struct mmu_psize_def Christophe Leroy
2024-05-25  4:35   ` Oscar Salvador
2024-05-17 19:00 ` [RFC PATCH v2 15/20] powerpc/85xx: Switch to 64 bits PGD Christophe Leroy
2024-05-25  4:54   ` Oscar Salvador
2024-05-25  9:02     ` Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 16/20] powerpc/e500: Encode hugepage size in PTE bits Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 17/20] powerpc/e500: Use contiguous PMD instead of hugepd Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 18/20] powerpc/64s: Use contiguous PMD/PUD instead of HUGEPD Christophe Leroy
2024-05-20 12:54   ` Nicholas Piggin
2024-05-20 16:43     ` Christophe Leroy
2024-05-22  1:13       ` Nicholas Piggin
2024-05-22  9:32         ` Christophe Leroy
2024-05-22 12:23         ` Jason Gunthorpe
2024-05-17 19:00 ` [RFC PATCH v2 19/20] powerpc/mm: Remove hugepd leftovers Christophe Leroy
2024-05-17 19:00 ` [RFC PATCH v2 20/20] mm: Remove CONFIG_ARCH_HAS_HUGEPD Christophe Leroy
2024-05-17 19:06 ` [RFC PATCH v2 00/20] Reimplement huge pages without hugepd on powerpc (8xx, e500, book3s/64) Jason Gunthorpe
2024-05-18  6:28   ` Christophe Leroy
2024-05-23 19:40 ` Peter Xu
2024-05-24  4:46   ` Michael Ellerman
2024-05-27 14:14     ` Peter Xu
2024-05-24  6:31   ` Oscar Salvador

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=f70e5249b9e6a9a06e6575aa0efbaf8ba93c3659.1715971869.git.christophe.leroy@csgroup.eu \
    --to=christophe.leroy@csgroup.eu \
    --cc=akpm@linux-foundation.org \
    --cc=jgg@nvidia.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=mpe@ellerman.id.au \
    --cc=npiggin@gmail.com \
    --cc=osalvador@suse.de \
    --cc=peterx@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox