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From: Claudio Imbrenda <imbrenda@linux.ibm.com>
To: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Cc: hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com,
	svens@linux.ibm.com, gerald.schaefer@linux.ibm.com,
	borntraeger@de.ibm.com
Subject: [PATCH v4 2/2] s390/pgtable: add missing hardware bits for puds, pmds
Date: Mon, 29 Apr 2024 16:34:09 +0200	[thread overview]
Message-ID: <20240429143409.49892-3-imbrenda@linux.ibm.com> (raw)
In-Reply-To: <20240429143409.49892-1-imbrenda@linux.ibm.com>

Add the table type and ACCF validity bits to _SEGMENT_ENTRY_BITS and
_SEGMENT_ENTRY_HARDWARE_BITS{,_LARGE}.

For completeness, introduce _REGION3_ENTRY_HARDWARE_BITS_LARGE and
_REGION3_ENTRY_HARDWARE_BITS, containing the hardware bits used for
large puds and normal puds.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
---
 arch/s390/include/asm/pgtable.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 3da2995fd196..c8947ee36f1a 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -262,6 +262,8 @@ static inline int is_module_addr(void *addr)
 #define _REGION3_ENTRY		(_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_LENGTH)
 #define _REGION3_ENTRY_EMPTY	(_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INVALID)
 
+#define _REGION3_ENTRY_HARDWARE_BITS		0xfffffffffffff6ffUL
+#define _REGION3_ENTRY_HARDWARE_BITS_LARGE	0xffffffff8001073cUL
 #define _REGION3_ENTRY_ORIGIN_LARGE ~0x7fffffffUL /* large page address	     */
 #define _REGION3_ENTRY_DIRTY	0x2000	/* SW region dirty bit */
 #define _REGION3_ENTRY_YOUNG	0x1000	/* SW region young bit */
@@ -278,9 +280,9 @@ static inline int is_module_addr(void *addr)
 #define _REGION_ENTRY_BITS	 0xfffffffffffff22fUL
 
 /* Bits in the segment table entry */
-#define _SEGMENT_ENTRY_BITS			0xfffffffffffffe33UL
-#define _SEGMENT_ENTRY_HARDWARE_BITS		0xfffffffffffffe30UL
-#define _SEGMENT_ENTRY_HARDWARE_BITS_LARGE	0xfffffffffff00730UL
+#define _SEGMENT_ENTRY_BITS			0xfffffffffffffe3fUL
+#define _SEGMENT_ENTRY_HARDWARE_BITS		0xfffffffffffffe3cUL
+#define _SEGMENT_ENTRY_HARDWARE_BITS_LARGE	0xfffffffffff1073cUL
 #define _SEGMENT_ENTRY_ORIGIN_LARGE ~0xfffffUL /* large page address	    */
 #define _SEGMENT_ENTRY_ORIGIN	~0x7ffUL/* page table origin		    */
 #define _SEGMENT_ENTRY_PROTECT	0x200	/* segment protection bit	    */
-- 
2.44.0


  parent reply	other threads:[~2024-04-29 14:39 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-29 14:34 [PATCH v4 0/2] s390/pgtable: misc small improvements Claudio Imbrenda
2024-04-29 14:34 ` [PATCH v4 1/2] s390/pgtable: switch read and write softbits for puds Claudio Imbrenda
2024-04-29 14:34 ` Claudio Imbrenda [this message]
2024-04-30 11:46 ` [PATCH v4 0/2] s390/pgtable: misc small improvements Alexander Gordeev

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