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Date: Fri, 23 Sep 2022 18:02:01 -0000
From: "tip-bot2 for James Morse" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: James Morse <james.morse@....com>, Borislav Petkov <bp@...e.de>,
Jamie Iles <quic_jiles@...cinc.com>,
Shaopeng Tan <tan.shaopeng@...itsu.com>,
Reinette Chatre <reinette.chatre@...el.com>,
Xin Hao <xhao@...ux.alibaba.com>,
Cristian Marussi <cristian.marussi@....com>, x86@...nel.org,
linux-kernel@...r.kernel.org
Subject: [tip: x86/cache] x86/resctrl: Kill off alloc_enabled
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: 4d269ed485298e8a09485a664e7b35b370ab4ada
Gitweb: https://git.kernel.org/tip/4d269ed485298e8a09485a664e7b35b370ab4ada
Author: James Morse <james.morse@....com>
AuthorDate: Fri, 02 Sep 2022 15:48:09
Committer: Borislav Petkov <bp@...e.de>
CommitterDate: Thu, 22 Sep 2022 14:34:33 +02:00
x86/resctrl: Kill off alloc_enabled
rdt_resources_all[] used to have extra entries for L2CODE/L2DATA.
These were hidden from resctrl by the alloc_enabled value.
Now that the L2/L2CODE/L2DATA resources have been merged together,
alloc_enabled doesn't mean anything, it always has the same value as
alloc_capable which indicates allocation is supported by this resource.
Remove alloc_enabled and its helpers.
Signed-off-by: James Morse <james.morse@....com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Reviewed-by: Jamie Iles <quic_jiles@...cinc.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@...itsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@...el.com>
Tested-by: Xin Hao <xhao@...ux.alibaba.com>
Tested-by: Shaopeng Tan <tan.shaopeng@...itsu.com>
Tested-by: Cristian Marussi <cristian.marussi@....com>
Link: https://lore.kernel.org/r/20220902154829.30399-2-james.morse@arm.com
---
arch/x86/kernel/cpu/resctrl/core.c | 4 ----
arch/x86/kernel/cpu/resctrl/internal.h | 4 ----
arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 2 +-
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 6 +++---
include/linux/resctrl.h | 2 --
5 files changed, 4 insertions(+), 14 deletions(-)
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index bb1c3f5..2f87177 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -147,7 +147,6 @@ static inline void cache_alloc_hsw_probe(void)
r->cache.shareable_bits = 0xc0000;
r->cache.min_cbm_bits = 2;
r->alloc_capable = true;
- r->alloc_enabled = true;
rdt_alloc_capable = true;
}
@@ -211,7 +210,6 @@ static bool __get_mem_config_intel(struct rdt_resource *r)
thread_throttle_mode_init();
r->alloc_capable = true;
- r->alloc_enabled = true;
return true;
}
@@ -242,7 +240,6 @@ static bool __rdt_get_mem_config_amd(struct rdt_resource *r)
r->data_width = 4;
r->alloc_capable = true;
- r->alloc_enabled = true;
return true;
}
@@ -261,7 +258,6 @@ static void rdt_get_cache_alloc_cfg(int idx, struct rdt_resource *r)
r->cache.shareable_bits = ebx & r->default_ctrl;
r->data_width = (r->cache.cbm_len + 3) / 4;
r->alloc_capable = true;
- r->alloc_enabled = true;
}
static void rdt_get_cdp_config(int level)
diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index 1d64718..53f3d27 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -459,10 +459,6 @@ int resctrl_arch_set_cdp_enabled(enum resctrl_res_level l, bool enable);
for_each_rdt_resource(r) \
if (r->mon_capable)
-#define for_each_alloc_enabled_rdt_resource(r) \
- for_each_rdt_resource(r) \
- if (r->alloc_enabled)
-
#define for_each_mon_enabled_rdt_resource(r) \
for_each_rdt_resource(r) \
if (r->mon_enabled)
diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
index 4d83989..d961ae3 100644
--- a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
+++ b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
@@ -837,7 +837,7 @@ bool rdtgroup_pseudo_locked_in_hierarchy(struct rdt_domain *d)
* First determine which cpus have pseudo-locked regions
* associated with them.
*/
- for_each_alloc_enabled_rdt_resource(r) {
+ for_each_alloc_capable_rdt_resource(r) {
list_for_each_entry(d_i, &r->domains, list) {
if (d_i->plr)
cpumask_or(cpu_with_psl, cpu_with_psl,
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index f276aff..526eb93 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -1756,7 +1756,7 @@ static int rdtgroup_create_info_dir(struct kernfs_node *parent_kn)
if (ret)
goto out_destroy;
- /* loop over enabled controls, these are all alloc_enabled */
+ /* loop over enabled controls, these are all alloc_capable */
list_for_each_entry(s, &resctrl_schema_all, list) {
r = s->res;
fflags = r->fflags | RF_CTRL_INFO;
@@ -2106,7 +2106,7 @@ static int schemata_list_create(void)
struct rdt_resource *r;
int ret = 0;
- for_each_alloc_enabled_rdt_resource(r) {
+ for_each_alloc_capable_rdt_resource(r) {
if (resctrl_arch_get_cdp_enabled(r->rid)) {
ret = schemata_list_add(r, CDP_CODE);
if (ret)
@@ -2452,7 +2452,7 @@ static void rdt_kill_sb(struct super_block *sb)
set_mba_sc(false);
/*Put everything back to default values. */
- for_each_alloc_enabled_rdt_resource(r)
+ for_each_alloc_capable_rdt_resource(r)
reset_all_ctrls(r);
cdp_disable_all();
rmdir_all_sub();
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h
index 21deb52..386ab3a 100644
--- a/include/linux/resctrl.h
+++ b/include/linux/resctrl.h
@@ -130,7 +130,6 @@ struct resctrl_schema;
/**
* struct rdt_resource - attributes of a resctrl resource
* @rid: The index of the resource
- * @alloc_enabled: Is allocation enabled on this machine
* @mon_enabled: Is monitoring enabled for this feature
* @alloc_capable: Is allocation available on this machine
* @mon_capable: Is monitor feature available on this machine
@@ -150,7 +149,6 @@ struct resctrl_schema;
*/
struct rdt_resource {
int rid;
- bool alloc_enabled;
bool mon_enabled;
bool alloc_capable;
bool mon_capable;
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