mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 05/22] ARM: mmu32: introduce new mmu_addr_t type
Date: Wed,  6 Aug 2025 14:36:57 +0200	[thread overview]
Message-ID: <20250806123714.2092620-6-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20250806123714.2092620-1-a.fatoum@pengutronix.de>

The ARM 32-bit and 64-bit MMU code makes heavy use of uint32_t and
uint64_t respectively.

We can't use ulong for common code between them as u32 is an unsigned long
and u64 is a unsigned long long and pointers to them can not be implicitly
converted. As we don't want to rewrite all MMU code to use ullong, let's
just define a new mmu_addr_t, which can be used in code that should be
callable from either ISA.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 arch/arm/cpu/mmu_32.h | 2 ++
 arch/arm/cpu/mmu_64.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/cpu/mmu_32.h b/arch/arm/cpu/mmu_32.h
index 607d9e8608b2..7a58a819f08a 100644
--- a/arch/arm/cpu/mmu_32.h
+++ b/arch/arm/cpu/mmu_32.h
@@ -9,6 +9,8 @@
 
 #include "mmu-common.h"
 
+typedef u32 mmu_addr_t;
+
 #define PGDIR_SHIFT	20
 #define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
 
diff --git a/arch/arm/cpu/mmu_64.h b/arch/arm/cpu/mmu_64.h
index d3c39dabb507..ad7c1bde5631 100644
--- a/arch/arm/cpu/mmu_64.h
+++ b/arch/arm/cpu/mmu_64.h
@@ -2,6 +2,8 @@
 
 #include "mmu-common.h"
 
+typedef u64 mmu_addr_t;
+
 #define CACHED_MEM      (PTE_BLOCK_MEMTYPE(MT_NORMAL) | \
 			 PTE_BLOCK_OUTER_SHARE | \
 			 PTE_BLOCK_AF)
-- 
2.39.5




  parent reply	other threads:[~2025-08-06 12:39 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-06 12:36 [PATCH 00/22] ARM: mmu: refactor 32-bit and 64-bit code Ahmad Fatoum
2025-08-06 12:36 ` [PATCH 01/22] ARM: mmu: introduce new maptype_t type Ahmad Fatoum
2025-08-06 12:36 ` [PATCH 02/22] ARM: mmu: compare only lowest 16 bits for map type Ahmad Fatoum
2025-08-06 12:36 ` [PATCH 03/22] ARM: mmu: prefix pre-MMU functions with early_ Ahmad Fatoum
2025-08-06 12:36 ` [PATCH 04/22] ARM: mmu: panic when alloc_pte fails Ahmad Fatoum
2025-08-06 12:36 ` Ahmad Fatoum [this message]
2025-08-06 12:36 ` [PATCH 06/22] ARM: mmu: provide zero page control in PBL Ahmad Fatoum
2025-08-06 12:36 ` [PATCH 07/22] ARM: mmu: print map type as string Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 08/22] ARM: mmu64: rename create_sections to __arch_remap_range Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 09/22] ARM: mmu: move get_pte_attrs call into __arch_remap_range Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 10/22] ARM: mmu64: print debug message in __arch_remap_range Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 11/22] ARM: mmu: make force_pages a maptype_t flag Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 12/22] ARM: mmu64: move granule_size to the top of the file Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 13/22] ARM: mmu64: fix benign off-by-one in flush_cacheable_pages Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 14/22] ARM: mmu64: make flush_cacheable_pages less 64-bit dependent Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 15/22] ARM: mmu64: allow asserting last level page in __find_pte Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 16/22] ARM: mmu64: rename __find_pte to find_pte Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 17/22] ARM: mmu32: rework find_pte to have ARM64 find_pte semantics Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 18/22] ARM: mmu64: factor out flush_cacheable_pages for reusability Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 19/22] ARM: mmu32: flush only cacheable pages on remap Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 20/22] ARM: mmu32: factor out set_pte_range helper Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 21/22] ARM: mmu64: " Ahmad Fatoum
2025-08-06 12:37 ` [PATCH 22/22] ARM: mmu: define dma_alloc_writecombine in common code Ahmad Fatoum
2025-08-07  7:24 ` [PATCH 00/22] ARM: mmu: refactor 32-bit and 64-bit code Sascha Hauer

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=20250806123714.2092620-6-a.fatoum@pengutronix.de \
    --to=a.fatoum@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    /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