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From: Hari Bathini <hbathini@linux.ibm.com>
To: linuxppc-dev <linuxppc-dev@ozlabs.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.ibm.com>,
	Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
	Vasant Hegde <hegdevasant@linux.ibm.com>,
	Oliver <oohall@gmail.com>, Nicholas Piggin <npiggin@gmail.com>,
	Daniel Axtens <dja@axtens.net>
Subject: [PATCH v6 03/36] powerpc/fadump: declare helper functions in internal header file
Date: Wed, 11 Sep 2019 20:16:52 +0530
Message-ID: <156821320487.5656.2660730464212209984.stgit@hbathini.in.ibm.com> (raw)
In-Reply-To: <156821308145.5656.2233728784001623843.stgit@hbathini.in.ibm.com>

Declare helper functions, that can be reused by multiple platforms,
in the internal header file.

Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
---

Changes in v6:
  * Declare helper functions in internal header while keeping the definitions
    in arch/powerpc/kernel/fadump.c itself.


 arch/powerpc/include/asm/fadump-internal.h |    8 ++++++++
 arch/powerpc/kernel/fadump.c               |   16 ++++++++--------
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/include/asm/fadump-internal.h b/arch/powerpc/include/asm/fadump-internal.h
index 16e2781..e004c89 100644
--- a/arch/powerpc/include/asm/fadump-internal.h
+++ b/arch/powerpc/include/asm/fadump-internal.h
@@ -83,4 +83,12 @@ struct fw_dump {
 	unsigned long	nocma:1;
 };
 
+/* Helper functions */
+s32 fadump_setup_cpu_notes_buf(u32 num_cpus);
+void fadump_free_cpu_notes_buf(void);
+u32 *fadump_regs_to_elf_notes(u32 *buf, struct pt_regs *regs);
+void fadump_update_elfcore_header(char *bufp);
+bool is_fadump_boot_mem_contiguous(void);
+bool is_fadump_reserved_mem_contiguous(void);
+
 #endif /* _ASM_POWERPC_FADUMP_INTERNAL_H */
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index e2b83a9..eb0745e 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -234,7 +234,7 @@ static bool is_fadump_mem_area_contiguous(u64 d_start, u64 d_end)
  * Returns true, if there are no holes in boot memory area,
  * false otherwise.
  */
-static bool is_boot_memory_area_contiguous(void)
+bool is_fadump_boot_mem_contiguous(void)
 {
 	return is_fadump_mem_area_contiguous(0, fw_dump.boot_memory_size);
 }
@@ -243,7 +243,7 @@ static bool is_boot_memory_area_contiguous(void)
  * Returns true, if there are no holes in reserved memory area,
  * false otherwise.
  */
-static bool is_reserved_memory_area_contiguous(void)
+bool is_fadump_reserved_mem_contiguous(void)
 {
 	u64 d_start, d_end;
 
@@ -617,9 +617,9 @@ static int register_fw_dump(struct fadump_mem_struct *fdm)
 			" dump. Hardware Error(%d).\n", rc);
 		break;
 	case -3:
-		if (!is_boot_memory_area_contiguous())
+		if (!is_fadump_boot_mem_contiguous())
 			pr_err("Can't have holes in boot memory area while registering fadump\n");
-		else if (!is_reserved_memory_area_contiguous())
+		else if (!is_fadump_reserved_mem_contiguous())
 			pr_err("Can't have holes in reserved memory area while"
 			       " registering fadump\n");
 
@@ -749,7 +749,7 @@ fadump_read_registers(struct fadump_reg_entry *reg_entry, struct pt_regs *regs)
 	return reg_entry;
 }
 
-static u32 *fadump_regs_to_elf_notes(u32 *buf, struct pt_regs *regs)
+u32 *fadump_regs_to_elf_notes(u32 *buf, struct pt_regs *regs)
 {
 	struct elf_prstatus prstatus;
 
@@ -764,7 +764,7 @@ static u32 *fadump_regs_to_elf_notes(u32 *buf, struct pt_regs *regs)
 	return buf;
 }
 
-static void fadump_update_elfcore_header(char *bufp)
+void fadump_update_elfcore_header(char *bufp)
 {
 	struct elfhdr *elf;
 	struct elf_phdr *phdr;
@@ -815,7 +815,7 @@ static void fadump_free_buffer(unsigned long vaddr, unsigned long size)
 	__free_pages(page, order);
 }
 
-static s32 fadump_setup_cpu_notes_buf(u32 num_cpus)
+s32 fadump_setup_cpu_notes_buf(u32 num_cpus)
 {
 	/* Allocate buffer to hold cpu crash notes. */
 	fw_dump.cpu_notes_buf_size = num_cpus * sizeof(note_buf_t);
@@ -834,7 +834,7 @@ static s32 fadump_setup_cpu_notes_buf(u32 num_cpus)
 	return 0;
 }
 
-static void fadump_free_cpu_notes_buf(void)
+void fadump_free_cpu_notes_buf(void)
 {
 	if (!fw_dump.cpu_notes_buf_vaddr)
 		return;


  parent reply index

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-11 14:45 [PATCH v6 00/36] Add FADump support on PowerNV platform Hari Bathini
2019-09-11 14:46 ` [PATCH v6 01/36] powerpc/fadump: move internal macros/definitions to a new header Hari Bathini
2019-09-19 10:25   ` Michael Ellerman
2019-09-11 14:46 ` [PATCH v6 02/36] powerpc/fadump: add helper functions Hari Bathini
2019-09-11 14:46 ` Hari Bathini [this message]
2019-09-11 14:47 ` [PATCH v6 04/36] powerpc/fadump: Improve fadump documentation Hari Bathini
2019-09-11 14:47 ` [PATCH v6 05/36] powerpc/fadump: use helper functions to reserve/release cpu notes buffer Hari Bathini
2019-09-11 14:48 ` [PATCH v6 06/36] pseries/fadump: move rtas specific definitions to platform code Hari Bathini
2019-09-11 14:48 ` [PATCH v6 07/36] pseries/fadump: introduce callbacks for platform specific operations Hari Bathini
2019-09-11 14:48 ` [PATCH v6 08/36] pseries/fadump: define RTAS register/un-register callback functions Hari Bathini
2019-09-11 14:49 ` [PATCH v6 09/36] pseries/fadump: add source info while displaying region contents Hari Bathini
2019-09-11 14:49 ` [PATCH v6 10/36] powerpc/fadump: release all the memory above boot memory size Hari Bathini
2019-09-11 14:49 ` [PATCH v6 11/36] pseries/fadump: move out platform specific support from generic code Hari Bathini
2019-09-11 14:49 ` [PATCH v6 12/36] powerpc/fadump: use FADump instead of fadump for how it is pronounced Hari Bathini
2019-09-11 14:50 ` [PATCH v6 13/36] opal: add MPIPL interface definitions Hari Bathini
2019-09-11 14:50 ` [PATCH v6 14/36] powernv/fadump: add fadump support on powernv Hari Bathini
2019-09-11 14:50 ` [PATCH v6 15/36] powerpc/fadump: improve fadump_reserve_mem() Hari Bathini
2019-09-11 14:50 ` [PATCH v6 16/36] powernv/fadump: register kernel metadata address with opal Hari Bathini
2019-09-11 14:51 ` [PATCH v6 17/36] powernv/fadump: reset metadata address during clean up Hari Bathini
2019-09-11 14:51 ` [PATCH v6 18/36] powernv/fadump: define OPAL register/un-register callback functions Hari Bathini
2019-09-11 14:51 ` [PATCH v6 19/36] powernv/fadump: support copying multiple kernel boot memory regions Hari Bathini
2019-09-11 14:51 ` [PATCH v6 20/36] powernv/fadump: process the crashdump by exporting it as /proc/vmcore Hari Bathini
2019-09-11 14:52 ` [PATCH v6 21/36] powernv/fadump: Warn before processing partial crashdump Hari Bathini
2019-09-11 14:53 ` [PATCH v6 22/36] powernv/fadump: handle invalidation of crashdump and re-registraion Hari Bathini
2019-09-11 14:53 ` [PATCH v6 23/36] powerpc/fadump: Update documentation about OPAL platform support Hari Bathini
2019-09-11 14:54 ` [PATCH v6 24/36] powerpc/fadump: make use of memblock's bottom up allocation mode Hari Bathini
2019-09-11 14:54 ` [PATCH v6 25/36] powernv/fadump: process architected register state data provided by firmware Hari Bathini
2019-09-11 14:55 ` [PATCH v6 26/36] powerpc/fadump: make crash memory ranges array allocation generic Hari Bathini
2019-09-11 14:55 ` [PATCH v6 27/36] powerpc/fadump: consider reserved ranges while releasing memory Hari Bathini
2019-09-11 14:55 ` [PATCH v6 28/36] powerpc/fadump: improve how crashed kernel's memory is reserved Hari Bathini
2019-09-11 14:56 ` [PATCH v6 29/36] powernv/fadump: add support to preserve crash data on FADUMP disabled kernel Hari Bathini
2019-09-11 14:56 ` [PATCH v6 30/36] powerpc/fadump: update documentation about CONFIG_PRESERVE_FA_DUMP Hari Bathini
2019-09-11 14:56 ` [PATCH v6 31/36] powernv/opalcore: export /sys/firmware/opal/core for analysing opal crashes Hari Bathini
2019-09-11 14:56 ` [PATCH v6 32/36] powernv/opalcore: provide an option to invalidate /sys/firmware/opal/core file Hari Bathini
2019-09-11 14:56 ` [PATCH v6 33/36] powerpc/fadump: consider f/w load area Hari Bathini
2019-09-11 14:57 ` [PATCH v6 34/36] powernv/fadump: update documentation about option to release opalcore Hari Bathini
2019-09-11 14:57 ` [PATCH v6 35/36] powerpc/fadump: remove RMA_START and RMA_END macros Hari Bathini
2019-09-11 14:57 ` [PATCH v6 36/36] powernv/fadump: support holes in kernel boot memory area Hari Bathini

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