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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 14:30:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 14:30:54 -0800
commit287f037db5b46de5a86e4bdfbf02e0206ca877bf (patch)
tree56efb3d4d29175a1e98a6ba3e895de522492994e /include
parenta89ef2aa552db985e0ee8cb458846298c007704c (diff)
parent97fa21f65c3eb5bbab9b4734bed37fd624cddd86 (diff)
downloadlinux-287f037db5b46de5a86e4bdfbf02e0206ca877bf.tar.bz2
Merge tag 'x86_cache_for_6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cache resource control updates from Dave Hansen: "These declare the resource control (rectrl) MSRs a bit more normally and clean up an unnecessary structure member: - Remove unnecessary arch_has_empty_bitmaps structure memory - Move rescrtl MSR defines into msr-index.h, like normal MSRs" * tag 'x86_cache_for_6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Move MSR defines into msr-index.h x86/resctrl: Remove arch_has_empty_bitmaps
Diffstat (limited to 'include')
-rw-r--r--include/linux/resctrl.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h
index 0cf5b20c6ddf..0cee154abc9f 100644
--- a/include/linux/resctrl.h
+++ b/include/linux/resctrl.h
@@ -89,11 +89,12 @@ struct rdt_domain {
/**
* struct resctrl_cache - Cache allocation related data
* @cbm_len: Length of the cache bit mask
- * @min_cbm_bits: Minimum number of consecutive bits to be set
+ * @min_cbm_bits: Minimum number of consecutive bits to be set.
+ * The value 0 means the architecture can support
+ * zero CBM.
* @shareable_bits: Bitmask of shareable resource with other
* executing entities
* @arch_has_sparse_bitmaps: True if a bitmap like f00f is valid.
- * @arch_has_empty_bitmaps: True if the '0' bitmap is valid.
* @arch_has_per_cpu_cfg: True if QOS_CFG register for this cache
* level has CPU scope.
*/
@@ -102,7 +103,6 @@ struct resctrl_cache {
unsigned int min_cbm_bits;
unsigned int shareable_bits;
bool arch_has_sparse_bitmaps;
- bool arch_has_empty_bitmaps;
bool arch_has_per_cpu_cfg;
};