From: Chao-ying Fu <icebergfu@gmail.com>
To: opensbi@lists.infradead.org
Cc: Chao-ying Fu <cfu@mips.com>
Subject: [PATCH v4 3/8] platform: generic: mips: add an entry function
Date: Tue, 29 Apr 2025 16:29:23 -0700 [thread overview]
Message-ID: <20250429232928.6499-4-cfu@mips.com> (raw)
In-Reply-To: <CAAhSdy2jObwq5SUymwVmwMhcQ_h0-4OJuhwitgcVN2gPq2B=XQ@mail.gmail.com>
The entry function is minimum boot code for harts to execute after
reset, nmi, cache error, and debug exception.
Signed-off-by: Chao-ying Fu <cfu@mips.com>
---
platform/generic/mips/cps-vec.S | 75 +++++++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
create mode 100644 platform/generic/mips/cps-vec.S
diff --git a/platform/generic/mips/cps-vec.S b/platform/generic/mips/cps-vec.S
new file mode 100644
index 0000000..9309e20
--- /dev/null
+++ b/platform/generic/mips/cps-vec.S
@@ -0,0 +1,75 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 MIPS
+ *
+ */
+
+#include <sbi/riscv_encoding.h>
+#include <mips/p8700.h>
+
+ .text
+ .align 12
+ .globl mips_cps_core_entry
+mips_cps_core_entry:
+ j 1f
+
+ .align 2
+nmi_vector:
+ j 1f
+
+ .align 2
+cacheerr_vector:
+ j 1f
+
+ .align 2
+debugexc_vector:
+ j 1f
+
+ .align 2
+1:
+ li x1, 0
+ li x2, 0
+ li x3, 0
+ li x4, 0
+ li x5, 0
+ li x6, 0
+ li x7, 0
+ li x8, 0
+ li x9, 0
+ li x10, 0
+#ifdef FW_FDT_PATH
+ li x11, 0
+#endif
+ li x12, 0
+ li x13, 0
+ li x14, 0
+ li x15, 0
+ li x16, 0
+ li x17, 0
+ li x18, 0
+ li x19, 0
+ li x20, 0
+ li x21, 0
+ li x22, 0
+ li x23, 0
+ li x24, 0
+ li x25, 0
+ li x26, 0
+ li x27, 0
+ li x28, 0
+ li x29, 0
+ li x30, 0
+ li x31, 0
+
+ /* a0 has mhartid */
+ csrr a0, CSR_MHARTID
+
+ /* Let hart 0 jump to _start */
+ beqz a0, 1f
+ lla t0, _start_warm
+ jr t0
+1:
+ lla t0, _start
+ jr t0
+
--
2.47.1
--
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next prev parent reply other threads:[~2025-04-30 0:07 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-17 22:34 [PATCH] platform: generic: mips: add P8700 Chao-ying Fu
2025-02-12 12:27 ` Anup Patel
2025-02-26 0:53 ` [PATCH v2 01/11] " Chao-ying Fu
2025-03-28 4:45 ` Anup Patel
2025-02-26 0:53 ` [PATCH v2 02/11] platform: generic: mips: add header files Chao-ying Fu
2025-03-28 4:47 ` Anup Patel
2025-02-26 0:53 ` [PATCH v2 03/11] platform: generic: mips: add mips-cm header file Chao-ying Fu
2025-03-28 4:48 ` Anup Patel
2025-02-26 0:53 ` [PATCH v2 04/11] platform: generic: mips: add custom exception handler Chao-ying Fu
2025-03-28 4:53 ` Anup Patel
2025-04-08 2:49 ` Chao-ying Fu
2025-02-26 0:53 ` [PATCH v2 05/11] platform: generic: mips: add extra scratch space Chao-ying Fu
2025-03-28 4:56 ` Anup Patel
2025-02-26 0:53 ` [PATCH v2 06/11] platform: generic: mips: add an entry function Chao-ying Fu
2025-03-28 5:00 ` Anup Patel
2025-02-26 0:53 ` [PATCH v2 07/11] platform: generic: mips: add the platform file Chao-ying Fu
2025-02-26 0:53 ` [PATCH v2 08/11] platform: generic: mips: add a dts file Chao-ying Fu
2025-02-26 0:53 ` [PATCH v2 09/11] platform: generic: mips: add objects.mk Chao-ying Fu
2025-02-26 0:53 ` [PATCH v2 10/11] Change to jump to mips_cps_core_entry Chao-ying Fu
2025-02-26 0:53 ` [PATCH v2 11/11] Initialize MIPS custom PMA registers Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 0/9] *** Add MIPS P8700 platform *** Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 1/9] platform: generic: mips: add P8700 Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 2/9] platform: generic: mips: add header files Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 3/9] platform: generic: mips: add an entry function Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 4/9] platform: generic: add nanscent_init to platform_override Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 5/9] platform: generic: mips: add the platform file Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 6/9] lib: Emulate amo instructions Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 7/9] platform: generic: mips: add a dts file Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 8/9] platform: generic: mips: add objects.mk Chao-ying Fu
2025-04-10 22:45 ` [PATCH v3 9/9] Initialize MIPS custom PMA registers Chao-ying Fu
2025-04-29 23:29 ` [PATCH v4 0/8] *** Add MIPS P8700 platform *** Chao-ying Fu
2025-05-19 12:16 ` Anup Patel
2025-05-19 18:33 ` Chao-ying Fu
2025-05-19 21:52 ` Chao-ying Fu
2025-04-29 23:29 ` [PATCH v4 1/8] platform: generic: mips: add P8700 Chao-ying Fu
2025-04-29 23:29 ` [PATCH v4 2/8] platform: generic: mips: add header files Chao-ying Fu
2025-04-29 23:29 ` Chao-ying Fu [this message]
2025-04-29 23:29 ` [PATCH v4 4/8] platform: generic: mips: add the platform file Chao-ying Fu
2025-04-29 23:29 ` [PATCH v4 5/8] lib: Emulate amo instructions Chao-ying Fu
2025-05-19 12:14 ` Anup Patel
2025-04-29 23:29 ` [PATCH v4 6/8] platform: generic: mips: add a dts file Chao-ying Fu
2025-04-29 23:29 ` [PATCH v4 7/8] platform: generic: mips: add objects.mk Chao-ying Fu
2025-04-29 23:29 ` [PATCH v4 8/8] Initialize MIPS custom PMA registers Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 00/10] *** Add MIPS P8700 Platform *** Chao-ying Fu
2025-05-20 5:18 ` Anup Patel
2025-05-19 21:58 ` [PATCH v5 01/10] platform: generic: mips: add P8700 Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 02/10] platform: generic: mips: add header files Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 03/10] platform: generic: mips: add an entry function Chao-ying Fu
2025-05-20 5:29 ` Anup Patel
2025-05-22 20:50 ` Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 04/10] platform: generic: mips: add the platform file Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 05/10] platform: generic: mips: add a dts file Chao-ying Fu
2025-05-20 5:31 ` Anup Patel
2025-05-22 20:52 ` Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 06/10] platform: generic: mips: add objects.mk Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 07/10] Initialize MIPS custom PMA registers Chao-ying Fu
2025-05-20 5:08 ` Anup Patel
2025-05-22 20:47 ` Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 08/10] devices to use MMIO memory Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 09/10] platform: generic: mips: add mmio to allmem in the dts file Chao-ying Fu
2025-05-19 21:58 ` [PATCH v5 10/10] Fix PMA init for MMIO regions Chao-ying Fu
2025-05-22 21:21 ` [MIPS P8700 v6 0/7] Add MIPS P8700 support to generic platform Chao-ying Fu
2025-06-14 16:18 ` Anup Patel
2025-05-22 21:21 ` [MIPS P8700 v6 1/7] platform: generic: mips: add P8700 Chao-ying Fu
2025-05-22 21:21 ` [MIPS P8700 v6 2/7] platform: generic: mips: add header files Chao-ying Fu
2025-05-22 21:21 ` [MIPS P8700 v6 3/7] platform: generic: mips: add the platform file Chao-ying Fu
2025-05-22 21:21 ` [MIPS P8700 v6 4/7] platform: generic: mips: add objects.mk Chao-ying Fu
2025-05-22 21:21 ` [MIPS P8700 v6 5/7] devices to use MMIO memory Chao-ying Fu
2025-05-22 21:21 ` [MIPS P8700 v6 6/7] Convey MMIO flag as specified by SBI_DOMAIN_MEMREGION_MMIO Chao-ying Fu
2025-05-22 21:21 ` [MIPS P8700 v6 7/7] lib: sbi_platform: Add the platform pma_set function to set up cacheability Chao-ying Fu
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