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Message-Id: <20201215110517.5215-1-bp@alien8.de>
Date: Tue, 15 Dec 2020 12:05:16 +0100
From: Borislav Petkov <bp@...en8.de>
To: Yazen Ghannam <Yazen.Ghannam@....com>
Cc: linux-edac <linux-edac@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] EDAC/amd64: Merge sysfs debugging attributes setup code
From: Borislav Petkov <bp@...e.de>
There's no need for them to be in a separate file so merge them into the
main driver compilation unit like the other EDAC drivers do.
Drop now-unneeded function export, make the function static and shorten
static function names.
No functional changes.
Signed-off-by: Borislav Petkov <bp@...e.de>
---
drivers/edac/Makefile | 1 -
drivers/edac/amd64_edac.c | 65 +++++++++++++++++++++++++++++++----
drivers/edac/amd64_edac.h | 3 --
drivers/edac/amd64_edac_dbg.c | 55 -----------------------------
4 files changed, 59 insertions(+), 65 deletions(-)
delete mode 100644 drivers/edac/amd64_edac_dbg.c
diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile
index 3a849168780d..195e851652b6 100644
--- a/drivers/edac/Makefile
+++ b/drivers/edac/Makefile
@@ -45,7 +45,6 @@ obj-$(CONFIG_EDAC_I82860) += i82860_edac.o
obj-$(CONFIG_EDAC_R82600) += r82600_edac.o
amd64_edac_mod-y := amd64_edac.o
-amd64_edac_mod-$(CONFIG_EDAC_DEBUG) += amd64_edac_dbg.o
amd64_edac_mod-$(CONFIG_EDAC_AMD64_ERROR_INJECTION) += amd64_edac_inj.o
obj-$(CONFIG_EDAC_AMD64) += amd64_edac_mod.o
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 1362274d840b..b793ccd6c6bd 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -497,8 +497,8 @@ static int input_addr_to_csrow(struct mem_ctl_info *mci, u64 input_addr)
* complete 32-bit values despite the fact that the bitfields in the DHAR
* only represent bits 31-24 of the base and offset values.
*/
-int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
- u64 *hole_offset, u64 *hole_size)
+static int get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
+ u64 *hole_offset, u64 *hole_size)
{
struct amd64_pvt *pvt = mci->pvt_info;
@@ -551,7 +551,61 @@ int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
return 0;
}
-EXPORT_SYMBOL_GPL(amd64_get_dram_hole_info);
+
+#ifdef CONFIG_EDAC_DEBUG
+#define EDAC_DCT_ATTR_SHOW(reg) \
+static ssize_t reg##_show(struct device *dev, \
+ struct device_attribute *mattr, char *data) \
+{ \
+ struct mem_ctl_info *mci = to_mci(dev); \
+ struct amd64_pvt *pvt = mci->pvt_info; \
+ \
+ return sprintf(data, "0x%016llx\n", (u64)pvt->reg); \
+}
+
+EDAC_DCT_ATTR_SHOW(dhar);
+EDAC_DCT_ATTR_SHOW(dbam0);
+EDAC_DCT_ATTR_SHOW(top_mem);
+EDAC_DCT_ATTR_SHOW(top_mem2);
+
+static ssize_t hole_show(struct device *dev, struct device_attribute *mattr,
+ char *data)
+{
+ struct mem_ctl_info *mci = to_mci(dev);
+
+ u64 hole_base = 0;
+ u64 hole_offset = 0;
+ u64 hole_size = 0;
+
+ get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size);
+
+ return sprintf(data, "%llx %llx %llx\n", hole_base, hole_offset,
+ hole_size);
+}
+
+/*
+ * update NUM_DBG_ATTRS in case you add new members
+ */
+static DEVICE_ATTR(dhar, S_IRUGO, dhar_show, NULL);
+static DEVICE_ATTR(dbam, S_IRUGO, dbam0_show, NULL);
+static DEVICE_ATTR(topmem, S_IRUGO, top_mem_show, NULL);
+static DEVICE_ATTR(topmem2, S_IRUGO, top_mem2_show, NULL);
+static DEVICE_ATTR(dram_hole, S_IRUGO, hole_show, NULL);
+
+static struct attribute *dbg_attrs[] = {
+ &dev_attr_dhar.attr,
+ &dev_attr_dbam.attr,
+ &dev_attr_topmem.attr,
+ &dev_attr_topmem2.attr,
+ &dev_attr_dram_hole.attr,
+ NULL
+};
+
+const struct attribute_group dbg_group = {
+ .attrs = dbg_attrs,
+};
+#endif /* CONFIG_EDAC_DEBUG */
+
/*
* Return the DramAddr that the SysAddr given by @sys_addr maps to. It is
@@ -590,8 +644,7 @@ static u64 sys_addr_to_dram_addr(struct mem_ctl_info *mci, u64 sys_addr)
dram_base = get_dram_base(pvt, pvt->mc_node_id);
- ret = amd64_get_dram_hole_info(mci, &hole_base, &hole_offset,
- &hole_size);
+ ret = get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size);
if (!ret) {
if ((sys_addr >= (1ULL << 32)) &&
(sys_addr < ((1ULL << 32) + hole_size))) {
@@ -3411,7 +3464,7 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
static const struct attribute_group *amd64_edac_attr_groups[] = {
#ifdef CONFIG_EDAC_DEBUG
- &amd64_edac_dbg_group,
+ &dbg_group,
#endif
#ifdef CONFIG_EDAC_AMD64_ERROR_INJECTION
&amd64_edac_inj_group,
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 52b5d03eeba0..7c9f8c0b46d7 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -501,9 +501,6 @@ int __amd64_write_pci_cfg_dword(struct pci_dev *pdev, int offset,
#define amd64_write_pci_cfg(pdev, offset, val) \
__amd64_write_pci_cfg_dword(pdev, offset, val, __func__)
-int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
- u64 *hole_offset, u64 *hole_size);
-
#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
/* Injection helpers */
diff --git a/drivers/edac/amd64_edac_dbg.c b/drivers/edac/amd64_edac_dbg.c
deleted file mode 100644
index 393be3351493..000000000000
--- a/drivers/edac/amd64_edac_dbg.c
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include "amd64_edac.h"
-
-#define EDAC_DCT_ATTR_SHOW(reg) \
-static ssize_t amd64_##reg##_show(struct device *dev, \
- struct device_attribute *mattr, \
- char *data) \
-{ \
- struct mem_ctl_info *mci = to_mci(dev); \
- struct amd64_pvt *pvt = mci->pvt_info; \
- return sprintf(data, "0x%016llx\n", (u64)pvt->reg); \
-}
-
-EDAC_DCT_ATTR_SHOW(dhar);
-EDAC_DCT_ATTR_SHOW(dbam0);
-EDAC_DCT_ATTR_SHOW(top_mem);
-EDAC_DCT_ATTR_SHOW(top_mem2);
-
-static ssize_t amd64_hole_show(struct device *dev,
- struct device_attribute *mattr,
- char *data)
-{
- struct mem_ctl_info *mci = to_mci(dev);
-
- u64 hole_base = 0;
- u64 hole_offset = 0;
- u64 hole_size = 0;
-
- amd64_get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size);
-
- return sprintf(data, "%llx %llx %llx\n", hole_base, hole_offset,
- hole_size);
-}
-
-/*
- * update NUM_DBG_ATTRS in case you add new members
- */
-static DEVICE_ATTR(dhar, S_IRUGO, amd64_dhar_show, NULL);
-static DEVICE_ATTR(dbam, S_IRUGO, amd64_dbam0_show, NULL);
-static DEVICE_ATTR(topmem, S_IRUGO, amd64_top_mem_show, NULL);
-static DEVICE_ATTR(topmem2, S_IRUGO, amd64_top_mem2_show, NULL);
-static DEVICE_ATTR(dram_hole, S_IRUGO, amd64_hole_show, NULL);
-
-static struct attribute *amd64_edac_dbg_attrs[] = {
- &dev_attr_dhar.attr,
- &dev_attr_dbam.attr,
- &dev_attr_topmem.attr,
- &dev_attr_topmem2.attr,
- &dev_attr_dram_hole.attr,
- NULL
-};
-
-const struct attribute_group amd64_edac_dbg_group = {
- .attrs = amd64_edac_dbg_attrs,
-};
--
2.29.2
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