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EDAC/mc: Reorder functions edac_mc_alloc*()

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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>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Link: https://lkml.kernel.org/r/20200123090210.26933-3-rrichter@marvell.com
This commit is contained in:
Robert Richter 2020-01-23 09:02:52 +00:00 committed by Borislav Petkov
parent aad28c6f6b
commit 1f27c79062
1 changed files with 103 additions and 106 deletions
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209
drivers/edac/edac_mc.c
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@ -311,112 +311,6 @@ static void mci_release(struct device *dev)
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;
u32 *ce_per_layer[EDAC_MAX_LAYERS], *ue_per_layer[EDAC_MAX_LAYERS];
unsigned int idx, size, tot_dimms = 1, count = 1;
unsigned int tot_csrows = 1, tot_channels = 1, tot_errcount = 0;
void *pvt, *ptr = NULL;
int i;
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);
for (i = 0; i < n_layers; i++) {
count *= layers[i].size;
edac_dbg(4, "errcount layer %d size %d\n", i, count);
ce_per_layer[i] = edac_align_ptr(&ptr, sizeof(u32), count);
ue_per_layer[i] = edac_align_ptr(&ptr, sizeof(u32), count);
tot_errcount += 2 * count;
}
edac_dbg(4, "allocating %d error counters\n", tot_errcount);
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;
mci->dev.release = mci_release;
device_initialize(&mci->dev);
/* 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));
for (i = 0; i < n_layers; i++) {
mci->ce_per_layer[i] = (u32 *)((char *)mci + ((unsigned long)ce_per_layer[i]));
mci->ue_per_layer[i] = (u32 *)((char *)mci + ((unsigned long)ue_per_layer[i]));
}
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_channels = mci->num_cschannel;
@ -545,6 +439,109 @@ 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;
u32 *ce_per_layer[EDAC_MAX_LAYERS], *ue_per_layer[EDAC_MAX_LAYERS];
unsigned int idx, size, tot_dimms = 1, count = 1;
unsigned int tot_csrows = 1, tot_channels = 1, tot_errcount = 0;
void *pvt, *ptr = NULL;
int i;
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);
for (i = 0; i < n_layers; i++) {
count *= layers[i].size;
edac_dbg(4, "errcount layer %d size %d\n", i, count);
ce_per_layer[i] = edac_align_ptr(&ptr, sizeof(u32), count);
ue_per_layer[i] = edac_align_ptr(&ptr, sizeof(u32), count);
tot_errcount += 2 * count;
}
edac_dbg(4, "allocating %d error counters\n", tot_errcount);
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;
mci->dev.release = mci_release;
device_initialize(&mci->dev);
/* 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));
for (i = 0; i < n_layers; i++) {
mci->ce_per_layer[i] = (u32 *)((char *)mci + ((unsigned long)ce_per_layer[i]));
mci->ue_per_layer[i] = (u32 *)((char *)mci + ((unsigned long)ue_per_layer[i]));
}
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");