Merge remote-tracking branch 'drm-tegra/drm/tegra/for-next'

[karo-tx-linux.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index a491aaecc8bb569bf88aa51f4eb238b358ddcd51..a7fe423326b6a9be8b011725e439e78830b75b3d 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -930,11 +930,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        The filter can be disabled or changed to another
                        driver later using sysfs.
 
-       drm_kms_helper.edid_firmware=[<connector>:]<file>
-                       Broken monitors, graphic adapters and KVMs may
-                       send no or incorrect EDID data sets. This parameter
-                       allows to specify an EDID data set in the
-                       /lib/firmware directory that is used instead.
+       drm_kms_helper.edid_firmware=[<connector>:]<file>[,[<connector>:]<file>]
+                       Broken monitors, graphic adapters, KVMs and EDIDless
+                       panels may send no or incorrect EDID data sets.
+                       This parameter allows to specify an EDID data sets
+                       in the /lib/firmware directory that are used instead.
                        Generic built-in EDID data sets are used, if one of
                        edid/1024x768.bin, edid/1280x1024.bin,
                        edid/1680x1050.bin, or edid/1920x1080.bin is given
@@ -943,7 +943,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        available in Documentation/EDID/HOWTO.txt. An EDID
                        data set will only be used for a particular connector,
                        if its name and a colon are prepended to the EDID
-                       name.
+                       name. Each connector may use a unique EDID data
+                       set by separating the files with a comma.  An EDID
+                       data set with no connector name will be used for
+                       any connectors not explicitly specified.
 
        dscc4.setup=    [NET]
 
@@ -1095,6 +1098,21 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        you are really sure that your UEFI does sane gc and
                        fulfills the spec otherwise your board may brick.
 
+       efi_fake_mem=   nn[KMG]@ss[KMG]:aa[,nn[KMG]@ss[KMG]:aa,..] [EFI; X86]
+                       Add arbitrary attribute to specific memory range by
+                       updating original EFI memory map.
+                       Region of memory which aa attribute is added to is
+                       from ss to ss+nn.
+                       If efi_fake_mem=2G@4G:0x10000,2G@0x10a0000000:0x10000
+                       is specified, EFI_MEMORY_MORE_RELIABLE(0x10000)
+                       attribute is added to range 0x100000000-0x180000000 and
+                       0x10a0000000-0x1120000000.
+
+                       Using this parameter you can do debugging of EFI memmap
+                       related feature. For example, you can do debugging of
+                       Address Range Mirroring feature even if your box
+                       doesn't support it.
+
        eisa_irq_edge=  [PARISC,HW]
                        See header of drivers/parisc/eisa.c.
 
@@ -3078,9 +3096,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        cache-to-cache transfer latencies.
 
        rcutree.rcu_fanout_leaf= [KNL]
-                       Increase the number of CPUs assigned to each
-                       leaf rcu_node structure.  Useful for very large
-                       systems.
+                       Change the number of CPUs assigned to each
+                       leaf rcu_node structure.  Useful for very
+                       large systems, which will choose the value 64,
+                       and for NUMA systems with large remote-access
+                       latencies, which will choose a value aligned
+                       with the appropriate hardware boundaries.
 
        rcutree.jiffies_till_sched_qs= [KNL]
                        Set required age in jiffies for a