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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2dcdedf5-2a0c-41dc-ab06-08d6354c54f1 X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Oct 2018 22:52:08.3137 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR12MB1818 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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; } =20 +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 =3D false; @@ -811,10 +821,9 @@ static __init bool get_rdt_alloc_resources(void) ret =3D true; } =20 - if (rdt_cpu_has(X86_FEATURE_MBA)) { - if (rdt_get_mem_config(&rdt_resources_all[RDT_RESOURCE_MBA])) - ret =3D true; - } + if (rdt_mba_config()) + ret =3D true; + return ret; } =20 @@ -833,7 +842,7 @@ static __init bool get_rdt_mon_resources(void) return !rdt_get_mon_l3_config(&rdt_resources_all[RDT_RESOURCE_L3]); } =20 -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) } } =20 +static __init void rdt_quirks(void) +{ + if (boot_cpu_data.x86_vendor =3D=3D X86_VENDOR_INTEL) + rdt_quirks_intel(); +} + static __init bool get_rdt_resources(void) { - rdt_quirks(); rdt_alloc_capable =3D get_rdt_alloc_resources(); rdt_mon_capable =3D get_rdt_mon_resources(); =20 @@ -864,6 +878,9 @@ static int __init resctrl_late_init(void) struct rdt_resource *r; int state, ret; =20 + /* Run quirks first */ + rdt_quirks(); + if (!get_rdt_resources()) return -ENODEV; =20 --=20 2.17.1