From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
naveen.n.rao@linux.vnet.ibm.com, jniethe5@gmail.com
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 09/12] powerpc/inst: Refactor PPC32 and PPC64 versions
Date: Thu, 20 May 2021 13:50:46 +0000 (UTC) [thread overview]
Message-ID: <d54c63dcac6d190e1cc0d2fe3259d6e621928cdf.1621516826.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <cover.1621516826.git.christophe.leroy@csgroup.eu>
ppc_inst() ppc_inst_prefixed() ppc_inst_swab() can easily
be made common to both PPC32 and PPC64.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/include/asm/inst.h | 49 +++++++++------------------------
1 file changed, 13 insertions(+), 36 deletions(-)
diff --git a/arch/powerpc/include/asm/inst.h b/arch/powerpc/include/asm/inst.h
index 32d318c3b180..e009e94e90b2 100644
--- a/arch/powerpc/include/asm/inst.h
+++ b/arch/powerpc/include/asm/inst.h
@@ -60,9 +60,9 @@ static inline int ppc_inst_primary_opcode(struct ppc_inst x)
return ppc_inst_val(x) >> 26;
}
-#ifdef CONFIG_PPC64
#define ppc_inst(x) ((struct ppc_inst){ .val = (x) })
+#ifdef CONFIG_PPC64
#define ppc_inst_prefix(x, y) ((struct ppc_inst){ .val = (x), .suffix = (y) })
static inline u32 ppc_inst_suffix(struct ppc_inst x)
@@ -70,57 +70,34 @@ static inline u32 ppc_inst_suffix(struct ppc_inst x)
return x.suffix;
}
-static inline bool ppc_inst_prefixed(struct ppc_inst x)
-{
- return ppc_inst_primary_opcode(x) == OP_PREFIX;
-}
+#else
+#define ppc_inst_prefix(x, y) ppc_inst(x)
-static inline struct ppc_inst ppc_inst_swab(struct ppc_inst x)
+static inline u32 ppc_inst_suffix(struct ppc_inst x)
{
- return ppc_inst_prefix(swab32(ppc_inst_val(x)), swab32(ppc_inst_suffix(x)));
+ return 0;
}
+#endif /* CONFIG_PPC64 */
+
static inline struct ppc_inst ppc_inst_read(const unsigned int *ptr)
{
- u32 val, suffix;
-
- val = *ptr;
- if ((val >> 26) == OP_PREFIX) {
- suffix = *(ptr + 1);
- return ppc_inst_prefix(val, suffix);
- } else {
- return ppc_inst(val);
- }
+ if (IS_ENABLED(CONFIG_PPC64) && (*ptr >> 26) == OP_PREFIX)
+ return ppc_inst_prefix(*ptr, *(ptr + 1));
+ else
+ return ppc_inst(*ptr);
}
-#else
-
-#define ppc_inst(x) ((struct ppc_inst){ .val = x })
-
-#define ppc_inst_prefix(x, y) ppc_inst(x)
-
static inline bool ppc_inst_prefixed(struct ppc_inst x)
{
- return false;
-}
-
-static inline u32 ppc_inst_suffix(struct ppc_inst x)
-{
- return 0;
+ return IS_ENABLED(CONFIG_PPC64) && ppc_inst_primary_opcode(x) == OP_PREFIX;
}
static inline struct ppc_inst ppc_inst_swab(struct ppc_inst x)
{
- return ppc_inst(swab32(ppc_inst_val(x)));
-}
-
-static inline struct ppc_inst ppc_inst_read(const unsigned int *ptr)
-{
- return ppc_inst(*ptr);
+ return ppc_inst_prefix(swab32(ppc_inst_val(x)), swab32(ppc_inst_suffix(x)));
}
-#endif /* CONFIG_PPC64 */
-
static inline bool ppc_inst_equal(struct ppc_inst x, struct ppc_inst y)
{
if (ppc_inst_val(x) != ppc_inst_val(y))
--
2.25.0
next prev parent reply other threads:[~2021-05-20 13:51 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-20 13:50 [PATCH v2 00/12] powerpc: Cleanup use of 'struct ppc_inst' Christophe Leroy
2021-05-20 13:50 ` [PATCH v2 01/12] powerpc/inst: Fix sparse detection on get_user_instr() Christophe Leroy
2021-05-20 13:50 ` [PATCH v2 02/12] powerpc/inst: Reduce casts in get_user_instr() Christophe Leroy
2021-05-20 13:50 ` [PATCH v2 03/12] powerpc/inst: Improve readability of get_user_instr() and friends Christophe Leroy
2021-05-20 13:50 ` [PATCH v2 04/12] powerpc/inst: Avoid pointer dereferencing in ppc_inst_equal() Christophe Leroy
2021-06-15 3:38 ` Jordan Niethe
2021-05-20 13:50 ` [PATCH v2 05/12] powerpc: Do not dereference code as 'struct ppc_inst' (uprobe, code-patching, feature-fixups) Christophe Leroy
2021-06-15 3:41 ` Jordan Niethe
2021-05-20 13:50 ` [PATCH v2 06/12] powerpc/lib/code-patching: Make instr_is_branch_to_addr() static Christophe Leroy
2021-06-15 3:42 ` Jordan Niethe
2021-05-20 13:50 ` [PATCH v2 07/12] powerpc/lib/code-patching: Don't use struct 'ppc_inst' for runnable code in tests Christophe Leroy
2021-06-15 3:42 ` Jordan Niethe
2021-05-20 13:50 ` [PATCH v2 08/12] powerpc: Don't use 'struct ppc_inst' to reference instruction location Christophe Leroy
2021-06-15 2:01 ` Michael Ellerman
2021-06-15 3:47 ` Jordan Niethe
2021-05-20 13:50 ` Christophe Leroy [this message]
2021-06-15 3:48 ` [PATCH v2 09/12] powerpc/inst: Refactor PPC32 and PPC64 versions Jordan Niethe
2021-05-20 13:50 ` [PATCH v2 10/12] powerpc/optprobes: Minimise casts Christophe Leroy
2021-05-20 13:50 ` [PATCH v2 11/12] powerpc/optprobes: Compact code source a bit Christophe Leroy
2021-05-20 13:50 ` [PATCH v2 12/12] powerpc/optprobes: use PPC_RAW_ macros Christophe Leroy
2021-06-08 12:46 ` [PATCH v2 00/12] powerpc: Cleanup use of 'struct ppc_inst' Christophe Leroy
2021-06-15 7:18 ` Michael Ellerman
2021-06-15 7:24 ` Christophe Leroy
2021-06-16 13:05 ` Michael Ellerman
2021-06-18 3:51 ` Michael Ellerman
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=d54c63dcac6d190e1cc0d2fe3259d6e621928cdf.1621516826.git.christophe.leroy@csgroup.eu \
--to=christophe.leroy@csgroup.eu \
--cc=benh@kernel.crashing.org \
--cc=jniethe5@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=naveen.n.rao@linux.vnet.ibm.com \
--cc=paulus@samba.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;
as well as URLs for NNTP newsgroup(s).