From: ira.weiny@intel.com
To: Michael Tsirkin <mst@redhat.com>,
Ben Widawsky <bwidawsk@kernel.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Ira Weiny <ira.weiny@intel.com>,
qemu-devel@nongnu.org, linux-cxl@vger.kernel.org
Subject: [RFC PATCH 1/6] qemu/bswap: Add const_le64()
Date: Mon, 10 Oct 2022 15:29:39 -0700 [thread overview]
Message-ID: <20221010222944.3923556-2-ira.weiny@intel.com> (raw)
In-Reply-To: <20221010222944.3923556-1-ira.weiny@intel.com>
From: Ira Weiny <ira.weiny@intel.com>
Gcc requires constant versions of cpu_to_le* calls.
Add a 64 bit version.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
include/qemu/bswap.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/qemu/bswap.h b/include/qemu/bswap.h
index 346d05f2aab3..08e607821102 100644
--- a/include/qemu/bswap.h
+++ b/include/qemu/bswap.h
@@ -192,10 +192,20 @@ CPU_CONVERT(le, 64, uint64_t)
(((_x) & 0x0000ff00U) << 8) | \
(((_x) & 0x00ff0000U) >> 8) | \
(((_x) & 0xff000000U) >> 24))
+# define const_le64(_x) \
+ ((((_x) & 0x00000000000000ffU) << 56) | \
+ (((_x) & 0x000000000000ff00U) << 40) | \
+ (((_x) & 0x0000000000ff0000U) << 24) | \
+ (((_x) & 0x00000000ff000000U) << 8) | \
+ (((_x) & 0x000000ff00000000U) >> 8) | \
+ (((_x) & 0x0000ff0000000000U) >> 24) | \
+ (((_x) & 0x00ff000000000000U) >> 40) | \
+ (((_x) & 0xff00000000000000U) >> 56))
# define const_le16(_x) \
((((_x) & 0x00ff) << 8) | \
(((_x) & 0xff00) >> 8))
#else
+# define const_le64(_x) (_x)
# define const_le32(_x) (_x)
# define const_le16(_x) (_x)
#endif
--
2.37.2
next prev parent reply other threads:[~2022-10-10 22:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-10 22:29 [RFC PATCH 0/6] QEMU CXL Provide mock CXL events and irq support ira.weiny
2022-10-10 22:29 ` ira.weiny [this message]
2022-10-11 9:03 ` [RFC PATCH 1/6] qemu/bswap: Add const_le64() Jonathan Cameron
2022-10-13 22:52 ` Ira Weiny
2022-10-11 9:48 ` Peter Maydell
2022-10-11 15:22 ` Richard Henderson
2022-10-11 15:45 ` Peter Maydell
2022-10-13 22:47 ` Ira Weiny
2022-10-10 22:29 ` [RFC PATCH 2/6] qemu/uuid: Add UUID static initializer ira.weiny
2022-10-11 9:13 ` Jonathan Cameron
2022-10-13 23:11 ` Ira Weiny
2022-10-10 22:29 ` [RFC PATCH 3/6] hw/cxl/cxl-events: Add CXL mock events ira.weiny
2022-10-11 10:07 ` Jonathan Cameron
2022-10-14 0:21 ` Ira Weiny
2022-10-17 15:57 ` Jonathan Cameron
2022-12-19 10:07 ` Jonathan Cameron
2022-12-21 18:56 ` Ira Weiny
2022-10-10 22:29 ` [RFC PATCH 4/6] hw/cxl/mailbox: Wire up get/clear event mailbox commands ira.weiny
2022-10-11 10:26 ` Jonathan Cameron
2022-10-10 22:29 ` [RFC PATCH 5/6] hw/cxl/cxl-events: Add event interrupt support ira.weiny
2022-10-11 10:30 ` Jonathan Cameron
2022-10-10 22:29 ` [RFC PATCH 6/6] hw/cxl/mailbox: Wire up Get/Set Event Interrupt policy ira.weiny
2022-10-11 10:40 ` Jonathan Cameron
2022-10-10 22:45 ` [RFC PATCH 0/6] QEMU CXL Provide mock CXL events and irq support Ira Weiny
2022-10-11 9:40 ` Jonathan Cameron
2022-10-11 17:03 ` Ira Weiny
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