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| author |   Chris Packham <chris.packham@alliedtelesis.co.nz> | 2017-06-07 11:54:59 +1200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2017-06-14 13:49:25 +0200 |
| commit | ff0abed4922ffbd40dc4e5a78b8ea56a5eb68ec7 (patch) | |
| tree | 1a97df13f1d384c0660cf115dcc53bb49bf0019e /drivers/edac | |
| parent | EDAC, sb_edac: Avoid creating SOCK memory controller (diff) | |
| download | linux-dev-ff0abed4922ffbd40dc4e5a78b8ea56a5eb68ec7.tar.xz linux-dev-ff0abed4922ffbd40dc4e5a78b8ea56a5eb68ec7.zip | |
EDAC, altera: Simplify calculation of total memory
Use of_address_to_resource() and resource_size() instead of manually
parsing the "reg" property from the "memory" node(s).
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Thor Thayer <thor.thayer@linux.intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170606235500.22772-3-chris.packham@alliedtelesis.co.nz
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/altera_edac.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index 122637530b15..db75d4b614f7 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -214,24 +214,16 @@ static void altr_sdr_mc_create_debugfs_nodes(struct mem_ctl_info *mci) static unsigned long get_total_mem(void) { struct device_node *np = NULL; - const unsigned int *reg, *reg_end; - int len, sw, aw; - unsigned long start, size, total_mem = 0; + struct resource res; + int ret; + unsigned long total_mem = 0; for_each_node_by_type(np, "memory") { - aw = of_n_addr_cells(np); - sw = of_n_size_cells(np); - reg = (const unsigned int *)of_get_property(np, "reg", &len); - reg_end = reg + (len / sizeof(u32)); - - total_mem = 0; - do { - start = of_read_number(reg, aw); - reg += aw; - size = of_read_number(reg, sw); - reg += sw; - total_mem += size; - } while (reg < reg_end); + ret = of_address_to_resource(np, 0, &res); + if (ret) + continue; + + total_mem += resource_size(&res); } edac_dbg(0, "total_mem 0x%lx\n", total_mem); return total_mem; |