From: Robert Richter <rrichter@marvell.com>
To: Borislav Petkov <bp@alien8.de>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Tony Luck <tony.luck@intel.com>
Cc: James Morse <james.morse@arm.com>,
Robert Richter <rrichter@marvell.com>,
"linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Mauro Carvalho Chehab" <mchehab+samsung@kernel.org>
Subject: [PATCH v2 16/20] EDAC, mc: Reorder functions edac_mc_alloc*()
Date: Wed, 6 Nov 2019 09:33:37 +0000 [thread overview]
Message-ID: <20191106093239.25517-17-rrichter@marvell.com> (raw)
In-Reply-To: <20191106093239.25517-1-rrichter@marvell.com>
Reorder the new created functions edac_mc_alloc_csrows() and
edac_mc_alloc_dimms() and move them before edac_mc_alloc(). No further
code changes.
Signed-off-by: Robert Richter <rrichter@marvell.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
drivers/edac/edac_mc.c | 171 ++++++++++++++++++++---------------------
1 file changed, 84 insertions(+), 87 deletions(-)
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 042a4504bb7f..bbe37af487c3 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -305,93 +305,6 @@ static void _edac_mc_free(struct mem_ctl_info *mci)
kfree(mci);
}
-static int edac_mc_alloc_csrows(struct mem_ctl_info *mci);
-static int edac_mc_alloc_dimms(struct mem_ctl_info *mci);
-
-struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num,
- unsigned int n_layers,
- struct edac_mc_layer *layers,
- unsigned int sz_pvt)
-{
- struct mem_ctl_info *mci;
- struct edac_mc_layer *layer;
- unsigned int idx, size, tot_dimms = 1;
- unsigned int tot_csrows = 1, tot_channels = 1;
- void *pvt, *ptr = NULL;
- bool per_rank = false;
-
- if (WARN_ON(n_layers > EDAC_MAX_LAYERS || n_layers == 0))
- return NULL;
-
- /*
- * Calculate the total amount of dimms and csrows/cschannels while
- * in the old API emulation mode
- */
- for (idx = 0; idx < n_layers; idx++) {
- tot_dimms *= layers[idx].size;
- if (layers[idx].is_virt_csrow)
- tot_csrows *= layers[idx].size;
- else
- tot_channels *= layers[idx].size;
-
- if (layers[idx].type == EDAC_MC_LAYER_CHIP_SELECT)
- per_rank = true;
- }
-
- /* Figure out the offsets of the various items from the start of an mc
- * structure. We want the alignment of each item to be at least as
- * stringent as what the compiler would provide if we could simply
- * hardcode everything into a single struct.
- */
- mci = edac_align_ptr(&ptr, sizeof(*mci), 1);
- layer = edac_align_ptr(&ptr, sizeof(*layer), n_layers);
- pvt = edac_align_ptr(&ptr, sz_pvt, 1);
- size = ((unsigned long)pvt) + sz_pvt;
-
- edac_dbg(1, "allocating %u bytes for mci data (%d %s, %d csrows/channels)\n",
- size,
- tot_dimms,
- per_rank ? "ranks" : "dimms",
- tot_csrows * tot_channels);
-
- mci = kzalloc(size, GFP_KERNEL);
- if (mci == NULL)
- return NULL;
-
- /* Adjust pointers so they point within the memory we just allocated
- * rather than an imaginary chunk of memory located at address 0.
- */
- layer = (struct edac_mc_layer *)(((char *)mci) + ((unsigned long)layer));
- pvt = sz_pvt ? (((char *)mci) + ((unsigned long)pvt)) : NULL;
-
- /* setup index and various internal pointers */
- mci->mc_idx = mc_num;
- mci->tot_dimms = tot_dimms;
- mci->pvt_info = pvt;
- mci->n_layers = n_layers;
- mci->layers = layer;
- memcpy(mci->layers, layers, sizeof(*layer) * n_layers);
- mci->nr_csrows = tot_csrows;
- mci->num_cschannel = tot_channels;
- mci->csbased = per_rank;
-
- if (edac_mc_alloc_csrows(mci))
- goto error;
-
- if (edac_mc_alloc_dimms(mci))
- goto error;
-
- mci->op_state = OP_ALLOC;
-
- return mci;
-
-error:
- _edac_mc_free(mci);
-
- return NULL;
-}
-EXPORT_SYMBOL_GPL(edac_mc_alloc);
-
static int edac_mc_alloc_csrows(struct mem_ctl_info *mci)
{
unsigned int tot_csrows = mci->nr_csrows;
@@ -520,6 +433,90 @@ static int edac_mc_alloc_dimms(struct mem_ctl_info *mci)
return 0;
}
+struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num,
+ unsigned int n_layers,
+ struct edac_mc_layer *layers,
+ unsigned int sz_pvt)
+{
+ struct mem_ctl_info *mci;
+ struct edac_mc_layer *layer;
+ unsigned int idx, size, tot_dimms = 1;
+ unsigned int tot_csrows = 1, tot_channels = 1;
+ void *pvt, *ptr = NULL;
+ bool per_rank = false;
+
+ if (WARN_ON(n_layers > EDAC_MAX_LAYERS || n_layers == 0))
+ return NULL;
+
+ /*
+ * Calculate the total amount of dimms and csrows/cschannels while
+ * in the old API emulation mode
+ */
+ for (idx = 0; idx < n_layers; idx++) {
+ tot_dimms *= layers[idx].size;
+ if (layers[idx].is_virt_csrow)
+ tot_csrows *= layers[idx].size;
+ else
+ tot_channels *= layers[idx].size;
+
+ if (layers[idx].type == EDAC_MC_LAYER_CHIP_SELECT)
+ per_rank = true;
+ }
+
+ /* Figure out the offsets of the various items from the start of an mc
+ * structure. We want the alignment of each item to be at least as
+ * stringent as what the compiler would provide if we could simply
+ * hardcode everything into a single struct.
+ */
+ mci = edac_align_ptr(&ptr, sizeof(*mci), 1);
+ layer = edac_align_ptr(&ptr, sizeof(*layer), n_layers);
+ pvt = edac_align_ptr(&ptr, sz_pvt, 1);
+ size = ((unsigned long)pvt) + sz_pvt;
+
+ edac_dbg(1, "allocating %u bytes for mci data (%d %s, %d csrows/channels)\n",
+ size,
+ tot_dimms,
+ per_rank ? "ranks" : "dimms",
+ tot_csrows * tot_channels);
+
+ mci = kzalloc(size, GFP_KERNEL);
+ if (mci == NULL)
+ return NULL;
+
+ /* Adjust pointers so they point within the memory we just allocated
+ * rather than an imaginary chunk of memory located at address 0.
+ */
+ layer = (struct edac_mc_layer *)(((char *)mci) + ((unsigned long)layer));
+ pvt = sz_pvt ? (((char *)mci) + ((unsigned long)pvt)) : NULL;
+
+ /* setup index and various internal pointers */
+ mci->mc_idx = mc_num;
+ mci->tot_dimms = tot_dimms;
+ mci->pvt_info = pvt;
+ mci->n_layers = n_layers;
+ mci->layers = layer;
+ memcpy(mci->layers, layers, sizeof(*layer) * n_layers);
+ mci->nr_csrows = tot_csrows;
+ mci->num_cschannel = tot_channels;
+ mci->csbased = per_rank;
+
+ if (edac_mc_alloc_csrows(mci))
+ goto error;
+
+ if (edac_mc_alloc_dimms(mci))
+ goto error;
+
+ mci->op_state = OP_ALLOC;
+
+ return mci;
+
+error:
+ _edac_mc_free(mci);
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(edac_mc_alloc);
+
void edac_mc_free(struct mem_ctl_info *mci)
{
edac_dbg(1, "\n");
--
2.20.1
next prev parent reply other threads:[~2019-11-06 9:33 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-06 9:32 [PATCH v2 00/20] EDAC: Rework edac_mc and ghes drivers Robert Richter
2019-11-06 9:33 ` [PATCH v2 01/20] EDAC: Replace EDAC_DIMM_PTR() macro with edac_get_dimm() function Robert Richter
2019-11-09 7:23 ` Mauro Carvalho Chehab
2019-11-06 9:33 ` [PATCH v2 02/20] EDAC: Remove EDAC_DIMM_OFF() macro Robert Richter
2019-11-09 7:27 ` Mauro Carvalho Chehab
2019-11-06 9:33 ` [PATCH v2 03/20] EDAC: Introduce mci_for_each_dimm() iterator Robert Richter
2019-11-10 11:37 ` Borislav Petkov
2019-11-06 9:33 ` [PATCH v2 04/20] EDAC, mc: Do not BUG_ON() in edac_mc_alloc() Robert Richter
2019-11-06 9:33 ` [PATCH v2 05/20] EDAC, mc: Remove needless zero string termination Robert Richter
2019-11-09 7:28 ` Mauro Carvalho Chehab
2019-11-09 10:11 ` Borislav Petkov
2019-11-06 9:33 ` [PATCH v2 06/20] EDAC, mc: Reduce indentation level in edac_mc_handle_error() Robert Richter
2019-11-06 9:33 ` [PATCH v2 07/20] EDAC, mc: Rename iterator variable to idx Robert Richter
2019-11-09 10:21 ` Borislav Petkov
2019-11-06 9:33 ` [PATCH v2 08/20] EDAC: Remove misleading comment in struct edac_raw_error_desc Robert Richter
2019-11-06 9:33 ` [PATCH v2 09/20] EDAC, ghes: Use standard kernel macros for page calculations Robert Richter
2019-11-06 9:33 ` [PATCH v2 10/20] EDAC, ghes: Fix grain calculation Robert Richter
2019-11-06 9:33 ` [PATCH v2 11/20] EDAC, ghes: Remove intermediate buffer pvt->detail_location Robert Richter
2019-11-06 9:33 ` [PATCH v2 12/20] EDAC, ghes: Unify trace_mc_event() code with edac_mc driver Robert Richter
2019-11-06 9:33 ` [PATCH v2 13/20] EDAC, Documentation: Describe CPER module definition and DIMM ranks Robert Richter
2019-11-06 9:33 ` [PATCH v2 14/20] EDAC, mc: Remove per layer counters Robert Richter
2019-11-09 7:40 ` Mauro Carvalho Chehab
2019-11-18 20:30 ` Robert Richter
2019-11-06 9:33 ` [PATCH v2 15/20] EDAC, mc: Split edac_mc_alloc() into smaller functions Robert Richter
2019-11-06 9:33 ` Robert Richter [this message]
2019-11-06 9:33 ` [PATCH v2 17/20] EDAC, mc: Rework edac_raw_mc_handle_error() to use struct dimm_info Robert Richter
2019-11-06 9:33 ` [PATCH v2 18/20] EDAC: Store error type in struct edac_raw_error_desc Robert Richter
2019-11-09 7:30 ` Mauro Carvalho Chehab
2019-11-06 9:33 ` [PATCH v2 19/20] EDAC, mc: Determine mci pointer from the error descriptor Robert Richter
2019-11-06 9:33 ` [PATCH v2 20/20] EDAC, mc: Create new function edac_inc_csrow() Robert Richter
2019-11-09 7:32 ` Mauro Carvalho Chehab
2019-11-10 14:51 ` [PATCH v2 00/20] EDAC: Rework edac_mc and ghes drivers Borislav Petkov
2019-11-11 15:49 ` Robert Richter
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