From: Robert Richter <rrichter@marvell.com>
To: Borislav Petkov <bp@alien8.de>, James Morse <james.morse@arm.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Robert Richter <rrichter@marvell.com>
Subject: [PATCH v2 24/24] EDAC, ghes: Disable legacy API for ARM64
Date: Mon, 24 Jun 2019 15:09:44 +0000 [thread overview]
Message-ID: <20190624150758.6695-25-rrichter@marvell.com> (raw)
In-Reply-To: <20190624150758.6695-1-rrichter@marvell.com>
James Morse: "I'm all for removing/warning-its-broken it when
ghes_edac is in use."
Let's just disable legacy API for the ghes driver on arm64. Though, I
don't agree with it as there still could be some userland tools that
use this interface that cannot be used any longer after a transition
from x86 to arm64. I leave that decision up to James.
Signed-off-by: Robert Richter <rrichter@marvell.com>
---
drivers/edac/edac_mc.c | 34 +++++++++++++++++++++++++++-------
drivers/edac/edac_mc.h | 7 +++++++
drivers/edac/ghes_edac.c | 4 +++-
3 files changed, 37 insertions(+), 8 deletions(-)
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 9383a1179b83..d7a120d7e304 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -276,16 +276,11 @@ void *edac_align_ptr(void **p, unsigned size, int n_elems)
return (void *)(((unsigned long)ptr) + align - r);
}
-static void _edac_mc_free(struct mem_ctl_info *mci)
+static void _edac_mc_free_legacy(struct mem_ctl_info *mci)
{
- int i, chn, row;
+ int chn, row;
struct csrow_info *csr;
- if (mci->dimms) {
- for (i = 0; i < mci->tot_dimms; i++)
- kfree(mci->dimms[i]);
- kfree(mci->dimms);
- }
if (mci->csrows) {
for (row = 0; row < mci->nr_csrows; row++) {
csr = mci->csrows[row];
@@ -300,9 +295,34 @@ static void _edac_mc_free(struct mem_ctl_info *mci)
}
kfree(mci->csrows);
}
+}
+
+static void _edac_mc_free(struct mem_ctl_info *mci)
+{
+ int i;
+
+ if (mci->dimms) {
+ for (i = 0; i < mci->tot_dimms; i++)
+ kfree(mci->dimms[i]);
+ kfree(mci->dimms);
+ }
+
+ _edac_mc_free_legacy(mci);
+
kfree(mci);
}
+void edac_mc_disable_legacy_api(struct mem_ctl_info *mci)
+{
+#ifdef CONFIG_EDAC_LEGACY_SYSFS
+ _edac_mc_free_legacy(mci);
+ mci->nr_csrows = 0;
+ mci->num_cschannel = 0;
+ mci->csrows = NULL;
+#endif
+}
+EXPORT_SYMBOL_GPL(edac_mc_disable_legacy_api);
+
struct mem_ctl_info *__edac_mc_alloc(unsigned mc_num,
unsigned dimm_num,
unsigned n_layers,
diff --git a/drivers/edac/edac_mc.h b/drivers/edac/edac_mc.h
index e8215847f853..d1bacc5f47f5 100644
--- a/drivers/edac/edac_mc.h
+++ b/drivers/edac/edac_mc.h
@@ -270,6 +270,13 @@ void edac_mc_handle_error(const enum hw_event_mc_err_type type,
const char *msg,
const char *other_detail);
+/**
+ * edac_mc_disable_legacy_api() - Disable legacy sysfs API
+ *
+ * @mci: a struct mem_ctl_info pointer
+ */
+void edac_mc_disable_legacy_api(struct mem_ctl_info *mci);
+
/*
* edac misc APIs
*/
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
index 714623204232..804e48773f66 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -780,7 +780,9 @@ ghes_edac_register_one(int nid, struct ghes *ghes, struct device *parent)
mci->dev_name = dev_name(dev);
mem_info_prepare_mci(mci);
-
+#ifdef CONFIG_ARM64
+ edac_mc_disable_legacy_api(mci);
+#endif
rc = edac_mc_add_mc(mci);
if (rc < 0) {
pr_err("Can't register at EDAC core (%d)\n", rc);
--
2.20.1
next prev parent reply other threads:[~2019-06-24 15:09 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-24 15:08 [PATCH v2 00/24] EDAC, mc, ghes: Fixes and updates to improve memory error reporting Robert Richter
2019-06-24 15:08 ` [PATCH v2 01/24] EDAC, mc: Fix grain_bits calculation Robert Richter
2019-08-03 10:08 ` Borislav Petkov
2019-06-24 15:08 ` [PATCH v2 02/24] EDAC, ghes: Fix grain calculation Robert Richter
2019-08-09 13:15 ` Borislav Petkov
2019-08-12 6:42 ` Robert Richter
2019-08-12 7:32 ` Borislav Petkov
2019-08-12 12:05 ` Robert Richter
2019-08-12 12:38 ` Borislav Petkov
2019-06-24 15:08 ` [PATCH v2 03/24] EDAC, ghes: Remove pvt->detail_location string Robert Richter
2019-08-02 17:04 ` James Morse
2019-08-07 9:00 ` Robert Richter
2019-08-13 8:09 ` Borislav Petkov
2019-06-24 15:09 ` [PATCH v2 04/24] EDAC, ghes: Unify trace_mc_event() code with edac_mc driver Robert Richter
2019-06-24 15:09 ` [PATCH v2 05/24] EDAC, mc: Fix and improve sysfs init functions Robert Richter
2019-08-13 8:26 ` Borislav Petkov
2019-06-24 15:09 ` [PATCH v2 06/24] EDAC: Kill EDAC_DIMM_PTR() macro Robert Richter
2019-08-13 14:59 ` Borislav Petkov
2019-08-27 12:20 ` Robert Richter
2019-06-24 15:09 ` [PATCH v2 07/24] EDAC: Kill EDAC_DIMM_OFF() macro Robert Richter
2019-08-14 14:52 ` Borislav Petkov
2019-06-24 15:09 ` [PATCH v2 08/24] EDAC: Introduce mci_for_each_dimm() iterator Robert Richter
2019-08-14 15:18 ` Borislav Petkov
2019-08-28 8:18 ` Robert Richter
2019-06-24 15:09 ` [PATCH v2 09/24] EDAC, mc: Cleanup _edac_mc_free() code Robert Richter
2019-08-14 16:31 ` Borislav Petkov
2019-06-24 15:09 ` [PATCH v2 10/24] EDAC, mc: Remove per layer counters Robert Richter
2019-08-16 9:24 ` Borislav Petkov
2019-06-24 15:09 ` [PATCH v2 11/24] EDAC, mc: Rework edac_raw_mc_handle_error() to use struct dimm_info Robert Richter
2019-06-24 15:09 ` [PATCH v2 12/24] EDAC, ghes: Use standard kernel macros for page calculations Robert Richter
2019-08-02 17:04 ` James Morse
2019-08-07 9:52 ` Robert Richter
2019-06-24 15:09 ` [PATCH v2 13/24] EDAC, ghes: Add support for legacy API counters Robert Richter
2019-08-16 9:55 ` Borislav Petkov
2019-08-30 9:35 ` Robert Richter
2019-06-24 15:09 ` [PATCH v2 14/24] EDAC, ghes: Rework memory hierarchy detection Robert Richter
2019-08-20 8:56 ` Borislav Petkov
2019-06-24 15:09 ` [PATCH v2 15/24] EDAC, ghes: Extract numa node information for each dimm Robert Richter
2019-08-02 17:05 ` James Morse
2019-08-09 13:09 ` Robert Richter
2019-06-24 15:09 ` [PATCH v2 16/24] EDAC, ghes: Moving code around ghes_edac_register() Robert Richter
2019-06-24 15:09 ` [PATCH v2 17/24] EDAC, ghes: Create one memory controller device per node Robert Richter
2019-06-24 15:09 ` [PATCH v2 18/24] EDAC, ghes: Fill sysfs with the DMI DIMM label information Robert Richter
2019-06-24 15:09 ` [PATCH v2 19/24] EDAC, mc: Introduce edac_mc_alloc_by_dimm() for per dimm allocation Robert Richter
2019-06-24 15:09 ` [PATCH v2 20/24] EDAC, ghes: Identify dimm by node, card, module and handle Robert Richter
2019-06-24 15:09 ` [PATCH v2 21/24] EDAC, ghes: Enable per-layer reporting based on card/module Robert Richter
2019-06-24 15:09 ` [PATCH v2 22/24] EDAC, ghes: Move struct member smbios_handle to struct ghes_dimm_info Robert Richter
2019-06-24 15:09 ` [PATCH v2 23/24] EDAC, Documentation: Describe CPER module definition and DIMM ranks Robert Richter
2019-06-24 15:09 ` Robert Richter [this message]
2019-06-26 9:33 ` [PATCH v2 24/24] EDAC, ghes: Disable legacy API for ARM64 James Morse
2019-06-26 10:11 ` Robert Richter
2019-08-02 7:58 ` [PATCH v2 00/24] EDAC, mc, ghes: Fixes and updates to improve memory error reporting Robert Richter
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