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From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	dave.hansen@intel.com, luto@kernel.org, peterz@infradead.org
Cc: sathyanarayanan.kuppuswamy@linux.intel.com, aarcange@redhat.com,
	ak@linux.intel.com, dan.j.williams@intel.com, david@redhat.com,
	hpa@zytor.com, jgross@suse.com, jmattson@google.com,
	joro@8bytes.org, jpoimboe@redhat.com, knsathya@kernel.org,
	pbonzini@redhat.com, sdeep@vmware.com, seanjc@google.com,
	tony.luck@intel.com, vkuznets@redhat.com, wanpengli@tencent.com,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCHv3 14/32] x86: Adjust types used in port I/O helpers
Date: Fri, 18 Feb 2022 19:17:00 +0300	[thread overview]
Message-ID: <20220218161718.67148-15-kirill.shutemov@linux.intel.com> (raw)
In-Reply-To: <20220218161718.67148-1-kirill.shutemov@linux.intel.com>

Change port I/O helpers to use u8/u16/u32 instead of unsigned
char/short/int for values. Use u16 instead of int for port number.

It aligns the helpers with implementation in boot stub in preparation
for consolidation.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
---
 arch/x86/include/asm/io.h | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index f6d91ecb8026..638c1a2a82e0 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -258,37 +258,37 @@ static inline void slow_down_io(void)
 #endif
 
 #define BUILDIO(bwl, bw, type)						\
-static inline void out##bwl(unsigned type value, int port)		\
+static inline void out##bwl(type value, u16 port)			\
 {									\
 	asm volatile("out" #bwl " %" #bw "0, %w1"			\
 		     : : "a"(value), "Nd"(port));			\
 }									\
 									\
-static inline unsigned type in##bwl(int port)				\
+static inline type in##bwl(u16 port)					\
 {									\
-	unsigned type value;						\
+	type value;							\
 	asm volatile("in" #bwl " %w1, %" #bw "0"			\
 		     : "=a"(value) : "Nd"(port));			\
 	return value;							\
 }									\
 									\
-static inline void out##bwl##_p(unsigned type value, int port)		\
+static inline void out##bwl##_p(type value, u16 port)			\
 {									\
 	out##bwl(value, port);						\
 	slow_down_io();							\
 }									\
 									\
-static inline unsigned type in##bwl##_p(int port)			\
+static inline type in##bwl##_p(u16 port)				\
 {									\
-	unsigned type value = in##bwl(port);				\
+	type value = in##bwl(port);					\
 	slow_down_io();							\
 	return value;							\
 }									\
 									\
-static inline void outs##bwl(int port, const void *addr, unsigned long count) \
+static inline void outs##bwl(u16 port, const void *addr, unsigned long count) \
 {									\
 	if (cc_platform_has(CC_ATTR_GUEST_UNROLL_STRING_IO)) {		\
-		unsigned type *value = (unsigned type *)addr;		\
+		type *value = (type *)addr;				\
 		while (count) {						\
 			out##bwl(*value, port);				\
 			value++;					\
@@ -301,10 +301,10 @@ static inline void outs##bwl(int port, const void *addr, unsigned long count) \
 	}								\
 }									\
 									\
-static inline void ins##bwl(int port, void *addr, unsigned long count)	\
+static inline void ins##bwl(u16 port, void *addr, unsigned long count)	\
 {									\
 	if (cc_platform_has(CC_ATTR_GUEST_UNROLL_STRING_IO)) {		\
-		unsigned type *value = (unsigned type *)addr;		\
+		type *value = (type *)addr;				\
 		while (count) {						\
 			*value = in##bwl(port);				\
 			value++;					\
@@ -317,9 +317,9 @@ static inline void ins##bwl(int port, void *addr, unsigned long count)	\
 	}								\
 }
 
-BUILDIO(b, b, char)
-BUILDIO(w, w, short)
-BUILDIO(l, , int)
+BUILDIO(b, b, u8)
+BUILDIO(w, w, u16)
+BUILDIO(l,  , u32)
 
 #define inb inb
 #define inw inw
-- 
2.34.1


  parent reply	other threads:[~2022-02-18 16:18 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-18 16:16 [PATCHv3 00/32] TDX Guest: TDX core support Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 01/32] x86/mm: Fix warning on build with X86_MEM_ENCRYPT=y Kirill A. Shutemov
2022-02-18 19:39   ` Dave Hansen
2022-02-18 16:16 ` [PATCHv3 02/32] x86/coco: Add API to handle encryption mask Kirill A. Shutemov
2022-02-18 20:36   ` Dave Hansen
2022-02-18 21:33     ` Kirill A. Shutemov
2022-02-18 21:58       ` Borislav Petkov
2022-02-19  0:13         ` [PATCHv3.1 2/32] x86/coco: Explicitly declare type of confidential computing platform Kirill A. Shutemov
2022-02-19  0:13           ` [PATCHv3.1 2.1/2] x86/coco: Add API to handle encryption mask Kirill A. Shutemov
2022-02-21 18:31             ` Tom Lendacky
2022-02-21 22:14               ` Kirill A. Shutemov
2022-02-21 21:05             ` Borislav Petkov
2022-02-21 22:10               ` Kirill A. Shutemov
2022-02-21 22:36                 ` Borislav Petkov
2022-02-21 23:25                   ` Kirill A. Shutemov
2022-02-22 13:31                     ` Borislav Petkov
2022-02-21 11:07           ` [PATCHv3.1 2/32] x86/coco: Explicitly declare type of confidential computing platform Borislav Petkov
2022-02-21 11:44             ` Kirill A. Shutemov
2022-02-21 12:05               ` Borislav Petkov
2022-02-21 13:52             ` Wei Liu
2022-02-21 20:20               ` Borislav Petkov
2022-02-21 19:28       ` [PATCHv3 02/32] x86/coco: Add API to handle encryption mask Dave Hansen
2022-02-21 19:49         ` Borislav Petkov
2022-02-21 22:21           ` Kirill A. Shutemov
2022-02-21 22:56             ` Borislav Petkov
2022-02-21 23:18               ` Kirill A. Shutemov
2022-02-22 13:28                 ` Borislav Petkov
2022-02-21 22:28         ` Kirill A. Shutemov
2022-02-22 11:03           ` Kirill A. Shutemov
2022-02-22 13:37             ` Borislav Petkov
2022-02-22 13:52               ` Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 03/32] x86/tdx: Detect running as a TDX guest in early boot Kirill A. Shutemov
2022-02-18 21:07   ` Dave Hansen
2022-02-20 15:01     ` Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 04/32] x86/tdx: Provide common base for SEAMCALL and TDCALL C wrappers Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 05/32] x86/tdx: Add __tdx_module_call() and __tdx_hypercall() helper functions Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 06/32] x86/tdx: Extend the confidential computing API to support TDX guests Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 07/32] x86/tdx: Exclude shared bit from __PHYSICAL_MASK Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 08/32] x86/traps: Add #VE support for TDX guest Kirill A. Shutemov
2022-02-22  7:19   ` Dingji Li
2022-02-22 11:11     ` Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 09/32] x86/tdx: Add HLT support for TDX guests Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 10/32] x86/tdx: Add MSR " Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 11/32] x86/tdx: Handle CPUID via #VE Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 12/32] x86/tdx: Handle in-kernel MMIO Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 13/32] x86/tdx: Detect TDX at early kernel decompression time Kirill A. Shutemov
2022-02-21 11:37   ` Cyrill Gorcunov
2022-02-21 13:53     ` Kirill A. Shutemov
2022-02-18 16:17 ` Kirill A. Shutemov [this message]
2022-02-18 16:17 ` [PATCHv3 15/32] x86: Consolidate port I/O helpers Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 16/32] x86/boot: Allow to hook up alternative " Kirill A. Shutemov
2022-02-21 20:04   ` Tom Lendacky
2022-02-21 22:02     ` Kirill A. Shutemov
2022-02-22  1:25       ` Josh Poimboeuf
2022-02-18 16:17 ` [PATCHv3 17/32] x86/boot/compressed: Support TDX guest port I/O at decompression time Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 18/32] x86/tdx: Add port I/O emulation Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 19/32] x86/tdx: Handle early boot port I/O Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 20/32] x86/tdx: Wire up KVM hypercalls Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 21/32] x86/boot: Add a trampoline for booting APs via firmware handoff Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 22/32] x86/acpi, x86/boot: Add multiprocessor wake-up support Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 23/32] x86/boot: Set CR0.NE early and keep it set during the boot Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 24/32] x86/boot: Avoid #VE during boot for TDX platforms Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 25/32] x86/topology: Disable CPU online/offline control for TDX guests Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 26/32] x86/tdx: Make pages shared in ioremap() Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 27/32] x86/mm/cpa: Generailize __set_memory_enc_pgtable() Kirill A. Shutemov
2022-02-21 15:46   ` Brijesh Singh
2022-02-18 16:17 ` [PATCHv3 28/32] x86/mm/cpa: Add support for TDX shared memory Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 29/32] x86/kvm: Use bounce buffers for TD guest Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 30/32] x86/tdx: ioapic: Add shared bit for IOAPIC base address Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 31/32] ACPICA: Avoid cache flush on TDX guest Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 32/32] Documentation/x86: Document TDX kernel architecture Kirill A. Shutemov

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