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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-27 10:08:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-27 10:08:10 -0700 |
| commit | 288321a9c65192878446a00acaa9f6c3ca9bb1f5 (patch) | |
| tree | d61bceb24d7438de2c965af7883bcfd0ffd828a6 /fs/pstore/ram.c | |
| parent | 7e4910b9acea9fb9575f6506f76dd465259ad8d9 (diff) | |
| parent | 9d843e8fafc7c0b15d8f511d146c0c3d7c816634 (diff) | |
| download | linux-288321a9c65192878446a00acaa9f6c3ca9bb1f5.tar.bz2 | |
Merge tag 'pstore-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore update from Kees Cook:
- Add mem_type property to expand support for >2 memory types (Mukesh Ojha)
* tag 'pstore-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
pstore: Add mem_type property DT parsing support
Diffstat (limited to 'fs/pstore/ram.c')
| -rw-r--r-- | fs/pstore/ram.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index ca6d8a867285..fefe3d391d3a 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -56,7 +56,7 @@ MODULE_PARM_DESC(mem_size, static unsigned int mem_type; module_param(mem_type, uint, 0400); MODULE_PARM_DESC(mem_type, - "set to 1 to try to use unbuffered memory (default 0)"); + "memory type: 0=write-combined (default), 1=unbuffered, 2=cached"); static int ramoops_max_reason = -1; module_param_named(max_reason, ramoops_max_reason, int, 0400); @@ -648,6 +648,10 @@ static int ramoops_parse_dt(struct platform_device *pdev, pdata->mem_size = resource_size(res); pdata->mem_address = res->start; + /* + * Setting "unbuffered" is deprecated and will be ignored if + * "mem_type" is also specified. + */ pdata->mem_type = of_property_read_bool(of_node, "unbuffered"); /* * Setting "no-dump-oops" is deprecated and will be ignored if @@ -666,6 +670,7 @@ static int ramoops_parse_dt(struct platform_device *pdev, field = value; \ } + parse_u32("mem-type", pdata->record_size, pdata->mem_type); parse_u32("record-size", pdata->record_size, 0); parse_u32("console-size", pdata->console_size, 0); parse_u32("ftrace-size", pdata->ftrace_size, 0); |