From: "Moger, Babu" <Babu.Moger@amd.com>
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Subject: [PATCH v5 03/13] arch/x86: Re-arrange RDT init code
Date: Thu, 18 Oct 2018 22:52:08 +0000 [thread overview]
Message-ID: <20181018225124.23043-4-babu.moger@amd.com> (raw)
In-Reply-To: <20181018225124.23043-1-babu.moger@amd.com>
Separate the call sequence for rdt_quirks and MBA feature.
This is in preparation to handle vendor differences in these
call sequences.
Signed-off-by: Babu Moger <babu.moger@amd.com>
---
arch/x86/kernel/cpu/resctrl.c | 29 +++++++++++++++++++++++------
1 file changed, 23 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kernel/cpu/resctrl.c b/arch/x86/kernel/cpu/resctrl.c
index 8afc0da6fa59..6c1199f7f28e 100644
--- a/arch/x86/kernel/cpu/resctrl.c
+++ b/arch/x86/kernel/cpu/resctrl.c
@@ -787,6 +787,16 @@ static bool __init rdt_cpu_has(int flag)
return ret;
}
+static __init bool rdt_mba_config(void)
+{
+ if (rdt_cpu_has(X86_FEATURE_MBA)) {
+ if (rdt_get_mem_config(&rdt_resources_all[RDT_RESOURCE_MBA]))
+ return true;
+ }
+
+ return false;
+}
+
static __init bool get_rdt_alloc_resources(void)
{
bool ret = false;
@@ -811,10 +821,9 @@ static __init bool get_rdt_alloc_resources(void)
ret = true;
}
- if (rdt_cpu_has(X86_FEATURE_MBA)) {
- if (rdt_get_mem_config(&rdt_resources_all[RDT_RESOURCE_MBA]))
- ret = true;
- }
+ if (rdt_mba_config())
+ ret = true;
+
return ret;
}
@@ -833,7 +842,7 @@ static __init bool get_rdt_mon_resources(void)
return !rdt_get_mon_l3_config(&rdt_resources_all[RDT_RESOURCE_L3]);
}
-static __init void rdt_quirks(void)
+static __init void rdt_quirks_intel(void)
{
switch (boot_cpu_data.x86_model) {
case INTEL_FAM6_HASWELL_X:
@@ -848,9 +857,14 @@ static __init void rdt_quirks(void)
}
}
+static __init void rdt_quirks(void)
+{
+ if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+ rdt_quirks_intel();
+}
+
static __init bool get_rdt_resources(void)
{
- rdt_quirks();
rdt_alloc_capable = get_rdt_alloc_resources();
rdt_mon_capable = get_rdt_mon_resources();
@@ -864,6 +878,9 @@ static int __init resctrl_late_init(void)
struct rdt_resource *r;
int state, ret;
+ /* Run quirks first */
+ rdt_quirks();
+
if (!get_rdt_resources())
return -ENODEV;
--
2.17.1
next prev parent reply other threads:[~2018-10-18 22:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-18 22:52 [PATCH v5 00/13] arch/x86: AMD QoS support Moger, Babu
2018-10-18 22:52 ` [PATCH v5 01/13] arch/x86: Start renaming the rdt files to more generic names Moger, Babu
2018-10-18 22:52 ` [PATCH v5 02/13] arch/x86: Rename the RDT functions and definitions Moger, Babu
2018-10-18 22:52 ` Moger, Babu [this message]
2018-10-18 22:52 ` [PATCH v5 04/13] arch/x86: Bring all the macros to resctrl.h Moger, Babu
2018-10-18 22:52 ` [PATCH v5 05/13] arch/x86: Introduce a new config parameter RESCTRL Moger, Babu
2018-10-18 22:52 ` [PATCH v5 06/13] arch/x86: Use new config parameter RESCTRL for compilation Moger, Babu
2018-10-18 22:52 ` [PATCH v5 07/13] arch/x86: Initialize the resource functions that are different Moger, Babu
2018-10-18 22:52 ` [PATCH v5 08/13] arch/x86: Bring cbm_validate function into the resource structure Moger, Babu
2018-10-18 22:52 ` [PATCH v5 09/13] arch/x86: Introduce new config parameter AMD_QOS Moger, Babu
2018-10-18 22:52 ` [PATCH v5 10/13] arch/x86: Add AMD feature bit X86_FEATURE_MBA in cpuid bits array Moger, Babu
2018-10-18 22:52 ` [PATCH v5 11/13] arch/x86: Introduce QOS feature for AMD Moger, Babu
2018-10-18 22:52 ` [PATCH v5 12/13] Documentation/x86: Rename and update intel_rdt_ui.txt Moger, Babu
2018-10-18 22:52 ` [PATCH v5 13/13] MAINTAINERS: Update the file and documentation names in arch/x86 Moger, Babu
2018-10-26 17:30 ` [PATCH v5 00/13] arch/x86: AMD QoS support Moger, Babu
2018-10-30 9:11 ` Thomas Gleixner
2018-10-31 21:55 ` Fenghua Yu
2018-11-01 14:55 ` Moger, Babu
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