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Fri, 15 Aug 2025 03:01:29 -0700 (PDT) Received: from hsinchu16.internal.sifive.com ([210.176.154.34]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b472d5a7a40sm879220a12.9.2025.08.15.03.01.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Aug 2025 03:01:29 -0700 (PDT) From: Yu-Chien Peter Lin To: opensbi@lists.infradead.org Subject: [RFC PATCH 2/7] include: sbi: sbi_platform: add reserved_pmp_count field Date: Fri, 15 Aug 2025 18:01:10 +0800 Message-ID: <20250815100116.27776-3-peter.lin@sifive.com> X-Mailer: git-send-email 2.48.0 In-Reply-To: <20250815100116.27776-1-peter.lin@sifive.com> References: <20250815100116.27776-1-peter.lin@sifive.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250815_030130_691657_C3DF3407 X-CRM114-Status: UNSURE ( 8.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: opensbi@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: greentime.hu@sifive.com, Yu-Chien Peter Lin , zong.li@sifive.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "opensbi" Errors-To: opensbi-bounces+opensbi=archiver.kernel.org@lists.infradead.org Add reserved_pmp_count field to struct sbi_platform to specify the configurable number of high-priority PMP entries reserved. Signed-off-by: Yu-Chien Peter Lin --- include/sbi/sbi_platform.h | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/include/sbi/sbi_platform.h b/include/sbi/sbi_platform.h index c6d30080..e2bf9b77 100644 --- a/include/sbi/sbi_platform.h +++ b/include/sbi/sbi_platform.h @@ -31,16 +31,18 @@ #define SBI_PLATFORM_HART_STACK_SIZE_OFFSET (0x54) /** Offset of heap_size in struct sbi_platform */ #define SBI_PLATFORM_HEAP_SIZE_OFFSET (0x58) +/** Offset of reserved PMP entry count in struct sbi_platform */ +#define SBI_PLATFORM_RESERVED_PMP_COUNT_OFFSET (0x5c) /** Offset of reserved in struct sbi_platform */ -#define SBI_PLATFORM_RESERVED_OFFSET (0x5c) +#define SBI_PLATFORM_RESERVED_OFFSET (0x60) /** Offset of platform_ops_addr in struct sbi_platform */ -#define SBI_PLATFORM_OPS_OFFSET (0x60) +#define SBI_PLATFORM_OPS_OFFSET (0x68) /** Offset of firmware_context in struct sbi_platform */ -#define SBI_PLATFORM_FIRMWARE_CONTEXT_OFFSET (0x60 + __SIZEOF_POINTER__) +#define SBI_PLATFORM_FIRMWARE_CONTEXT_OFFSET (0x68 + __SIZEOF_POINTER__) /** Offset of hart_index2id in struct sbi_platform */ -#define SBI_PLATFORM_HART_INDEX2ID_OFFSET (0x60 + (__SIZEOF_POINTER__ * 2)) +#define SBI_PLATFORM_HART_INDEX2ID_OFFSET (0x68 + (__SIZEOF_POINTER__ * 2)) /** Offset of cbom_block_size in struct sbi_platform */ -#define SBI_PLATFORM_CBOM_BLOCK_SIZE_OFFSET (0x60 + (__SIZEOF_POINTER__ * 3)) +#define SBI_PLATFORM_CBOM_BLOCK_SIZE_OFFSET (0x68 + (__SIZEOF_POINTER__ * 3)) #define SBI_PLATFORM_TLB_RANGE_FLUSH_LIMIT_DEFAULT (1UL << 12) @@ -182,6 +184,8 @@ struct sbi_platform { u32 hart_stack_size; /** Size of heap shared by all HARTs */ u32 heap_size; + /** Reserved PMP entry count */ + u8 reserved_pmp_count; /** Reserved for future use */ u32 reserved; /** Pointer to sbi platform operations */ @@ -214,6 +218,7 @@ assert_member_offset(struct sbi_platform, features, SBI_PLATFORM_FEATURES_OFFSET assert_member_offset(struct sbi_platform, hart_count, SBI_PLATFORM_HART_COUNT_OFFSET); assert_member_offset(struct sbi_platform, hart_stack_size, SBI_PLATFORM_HART_STACK_SIZE_OFFSET); assert_member_offset(struct sbi_platform, heap_size, SBI_PLATFORM_HEAP_SIZE_OFFSET); +assert_member_offset(struct sbi_platform, reserved_pmp_count, SBI_PLATFORM_RESERVED_PMP_COUNT_OFFSET); assert_member_offset(struct sbi_platform, reserved, SBI_PLATFORM_RESERVED_OFFSET); assert_member_offset(struct sbi_platform, platform_ops_addr, SBI_PLATFORM_OPS_OFFSET); assert_member_offset(struct sbi_platform, firmware_context, SBI_PLATFORM_FIRMWARE_CONTEXT_OFFSET); -- 2.48.0 -- opensbi mailing list opensbi@lists.infradead.org http://lists.infradead.org/mailman/listinfo/opensbi