From: James Morse <james.morse@arm.com>
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
Fenghua Yu <fenghua.yu@intel.com>,
Tony Luck <tony.luck@intel.com>, Ingo Molnar <mingo@redhat.com>,
H Peter Anvin <hpa@zytor.com>,
Reinette Chatre <reinette.chatre@intel.com>,
Vikas Shivappa <vikas.shivappa@linux.intel.com>
Subject: [RFC PATCH 18/20] x86/intel_rdt: Remove the CODE/DATA illusionary caches
Date: Fri, 24 Aug 2018 11:45:17 +0100 [thread overview]
Message-ID: <20180824104519.11203-19-james.morse@arm.com> (raw)
In-Reply-To: <20180824104519.11203-1-james.morse@arm.com>
Now that nothing uses these caches, remove them.
Signed-off-by: James Morse <james.morse@arm.com>
---
arch/x86/kernel/cpu/intel_rdt.c | 69 ---------------------------------
arch/x86/kernel/cpu/intel_rdt.h | 4 --
2 files changed, 73 deletions(-)
diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c
index 96b1aab36053..f6f1eceb366f 100644
--- a/arch/x86/kernel/cpu/intel_rdt.c
+++ b/arch/x86/kernel/cpu/intel_rdt.c
@@ -84,41 +84,6 @@ struct rdt_hw_resource rdt_resources_all[] = {
.msr_base = IA32_L3_CBM_BASE,
.msr_update = cat_wrmsr,
},
- [RDT_RESOURCE_L3DATA] =
- {
- .rid = RDT_RESOURCE_L3DATA,
- .resctrl = {
- .name = "L3DATA",
- .cache_level = 3,
- .cache = {
- .min_cbm_bits = 1,
- },
- .domains = domain_init(RDT_RESOURCE_L3DATA),
- .parse_ctrlval = parse_cbm,
- .format_str = "%d=%0*x",
- .fflags = RFTYPE_RES_CACHE,
- },
- .msr_base = IA32_L3_CBM_BASE,
- .msr_update = cat_wrmsr,
-
- },
- [RDT_RESOURCE_L3CODE] =
- {
- .rid = RDT_RESOURCE_L3CODE,
- .resctrl = {
- .name = "L3CODE",
- .cache_level = 3,
- .cache = {
- .min_cbm_bits = 1,
- },
- .domains = domain_init(RDT_RESOURCE_L3CODE),
- .parse_ctrlval = parse_cbm,
- .format_str = "%d=%0*x",
- .fflags = RFTYPE_RES_CACHE,
- },
- .msr_base = IA32_L3_CBM_BASE,
- .msr_update = cat_wrmsr,
- },
[RDT_RESOURCE_L2] =
{
.rid = RDT_RESOURCE_L2,
@@ -136,40 +101,6 @@ struct rdt_hw_resource rdt_resources_all[] = {
.msr_base = IA32_L2_CBM_BASE,
.msr_update = cat_wrmsr,
},
- [RDT_RESOURCE_L2DATA] =
- {
- .rid = RDT_RESOURCE_L2DATA,
- .resctrl = {
- .name = "L2DATA",
- .cache_level = 2,
- .cache = {
- .min_cbm_bits = 1,
- },
- .domains = domain_init(RDT_RESOURCE_L2DATA),
- .parse_ctrlval = parse_cbm,
- .format_str = "%d=%0*x",
- .fflags = RFTYPE_RES_CACHE,
- },
- .msr_base = IA32_L2_CBM_BASE,
- .msr_update = cat_wrmsr,
- },
- [RDT_RESOURCE_L2CODE] =
- {
- .rid = RDT_RESOURCE_L2CODE,
- .resctrl = {
- .name = "L2CODE",
- .cache_level = 2,
- .cache = {
- .min_cbm_bits = 1,
- },
- .domains = domain_init(RDT_RESOURCE_L2CODE),
- .parse_ctrlval = parse_cbm,
- .format_str = "%d=%0*x",
- .fflags = RFTYPE_RES_CACHE,
- },
- .msr_base = IA32_L2_CBM_BASE,
- .msr_update = cat_wrmsr,
- },
[RDT_RESOURCE_MBA] =
{
.rid = RDT_RESOURCE_MBA,
diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h
index fd5c0b3dc797..a4aba005cfea 100644
--- a/arch/x86/kernel/cpu/intel_rdt.h
+++ b/arch/x86/kernel/cpu/intel_rdt.h
@@ -311,11 +311,7 @@ int __init rdtgroup_init(void);
enum {
RDT_RESOURCE_L3,
- RDT_RESOURCE_L3DATA,
- RDT_RESOURCE_L3CODE,
RDT_RESOURCE_L2,
- RDT_RESOURCE_L2DATA,
- RDT_RESOURCE_L2CODE,
RDT_RESOURCE_MBA,
/* Must be the last */
--
2.18.0
next prev parent reply other threads:[~2018-08-24 10:46 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-24 10:44 [RFC PATCH 00/20] x86/intel_rdt: Start abstraction for a second arch James Morse
2018-08-24 10:45 ` [RFC PATCH 01/20] x86/intel_rdt: Split struct rdt_resource James Morse
2018-08-24 10:45 ` [RFC PATCH 02/20] x86/intel_rdt: Split struct rdt_domain James Morse
2018-08-24 10:45 ` [RFC PATCH 03/20] x86/intel_rdt: Group staged configuration into a separate struct James Morse
2018-08-24 10:45 ` [RFC PATCH 04/20] x86/intel_rdt: Add closid to the staged config James Morse
2018-08-24 10:45 ` [RFC PATCH 05/20] x86/intel_rdt: make update_domains() learn the affected closids James Morse
2018-08-24 10:45 ` [RFC PATCH 06/20] x86/intel_rdt: Add a helper to read a closid's configuration for show_doms() James Morse
2018-08-24 10:45 ` [RFC PATCH 07/20] x86/intel_rdt: Expose update_domains() as an arch helper James Morse
2018-08-24 10:45 ` [RFC PATCH 08/20] x86/intel_rdt: Make cdp enable/disable global James Morse
2018-08-24 10:45 ` [RFC PATCH 09/20] x86/intel_rdt: Track the actual number of closids separately James Morse
2018-08-24 10:45 ` [RFC PATCH 10/20] x86/intel_rdt: Let resctrl change the resources's num_closid James Morse
2018-08-24 10:45 ` [RFC PATCH 11/20] x86/intel_rdt: Pass in the code/data/both configuration value when parsing James Morse
2018-08-24 10:45 ` [RFC PATCH 12/20] x86/intel_rdt: Correct the closid when staging configuration changes James Morse
2018-08-24 10:45 ` [RFC PATCH 13/20] x86/intel_rdt: Allow different CODE/DATA configurations to be staged James Morse
2018-08-24 10:45 ` [RFC PATCH 14/20] x86/intel_rdt: Add a separate resource list for resctrl James Morse
2018-08-24 10:45 ` [RFC PATCH 15/20] x86/intel_rdt: Walk the resctrl schema list instead of the arch's resource list James Morse
2018-08-24 10:45 ` [RFC PATCH 16/20] x86/intel_rdt: Move the schemata names into struct resctrl_schema James Morse
2018-08-24 10:45 ` [RFC PATCH 17/20] x86/intel_rdt: Stop using Lx CODE/DATA resources James Morse
2018-08-24 10:45 ` James Morse [this message]
2018-08-24 10:45 ` [RFC PATCH 19/20] x86/intel_rdt: Kill off alloc_enabled James Morse
2018-08-24 10:45 ` [RFC PATCH 20/20] x86/intel_rdt: Merge cdp enable/disable calls James Morse
2018-08-27 14:22 ` [RFC PATCH 00/20] x86/intel_rdt: Start abstraction for a second arch Fenghua Yu
2018-08-31 15:34 ` James Morse
2018-09-06 14:03 ` Thomas Gleixner
2018-11-27 12:33 ` Yury Norov
2018-11-30 19:23 ` James Morse
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