Reviewed-by: Steve Wahl <steve.wahl@xxxxxxx>
On Fri, Jul 28, 2023 at 02:13:02PM +0200, Thomas Gleixner wrote:
> APIC IDs are used with random data types u16, u32, int, unsigned int,
> unsigned long.
>
> Make it all consistently use u32 because that reflects the hardware
> register width.
>
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> ---
> arch/x86/include/asm/apic.h | 14 ++------------
> arch/x86/kernel/apic/apic_flat_64.c | 4 ++--
> arch/x86/kernel/apic/apic_noop.c | 2 +-
> arch/x86/kernel/apic/apic_numachip.c | 8 ++++----
> arch/x86/kernel/apic/bigsmp_32.c | 2 +-
> arch/x86/kernel/apic/local.h | 4 ++--
> arch/x86/kernel/apic/probe_32.c | 10 ++++++++++
> arch/x86/kernel/apic/x2apic_phys.c | 4 ++--
> arch/x86/kernel/apic/x2apic_uv_x.c | 2 +-
> arch/x86/xen/apic.c | 4 ++--
> 10 files changed, 27 insertions(+), 27 deletions(-)
>
> --- a/arch/x86/include/asm/apic.h
> +++ b/arch/x86/include/asm/apic.h
> @@ -298,8 +298,8 @@ struct apic {
> u32 (*cpu_present_to_apicid)(int mps_cpu);
> u32 (*phys_pkg_id)(u32 cpuid_apic, int index_msb);
>
> - u32 (*get_apic_id)(unsigned long x);
> - u32 (*set_apic_id)(unsigned int id);
> + u32 (*get_apic_id)(u32 id);
> + u32 (*set_apic_id)(u32 apicid);
>
> /* wakeup_secondary_cpu */
> int (*wakeup_secondary_cpu)(int apicid, unsigned long start_eip);
> @@ -493,16 +493,6 @@ static inline bool lapic_vector_set_in_i
> return !!(irr & (1U << (vector % 32)));
> }
>
> -static inline unsigned default_get_apic_id(unsigned long x)
> -{
> - unsigned int ver = GET_APIC_VERSION(apic_read(APIC_LVR));
> -
> - if (APIC_XAPIC(ver) || boot_cpu_has(X86_FEATURE_EXTD_APICID))
> - return (x >> 24) & 0xFF;
> - else
> - return (x >> 24) & 0x0F;
> -}
> -
> /*
> * Warm reset vector position:
> */
> --- a/arch/x86/kernel/apic/apic_flat_64.c
> +++ b/arch/x86/kernel/apic/apic_flat_64.c
> @@ -56,12 +56,12 @@ flat_send_IPI_mask_allbutself(const stru
> _flat_send_IPI_mask(mask, vector);
> }
>
> -static unsigned int flat_get_apic_id(unsigned long x)
> +static u32 flat_get_apic_id(u32 x)
> {
> return (x >> 24) & 0xFF;
> }
>
> -static u32 set_apic_id(unsigned int id)
> +static u32 set_apic_id(u32 id)
> {
> return (id & 0xFF) << 24;
> }
> --- a/arch/x86/kernel/apic/apic_noop.c
> +++ b/arch/x86/kernel/apic/apic_noop.c
> @@ -30,7 +30,7 @@ static void noop_apic_icr_write(u32 low,
> static int noop_wakeup_secondary_cpu(int apicid, unsigned long start_eip) { return -1; }
> static u64 noop_apic_icr_read(void) { return 0; }
> static u32 noop_phys_pkg_id(u32 cpuid_apic, int index_msb) { return 0; }
> -static unsigned int noop_get_apic_id(unsigned long x) { return 0; }
> +static u32 noop_get_apic_id(u32 apicid) { return 0; }
> static void noop_apic_eoi(void) { }
>
> static u32 noop_apic_read(u32 reg)
> --- a/arch/x86/kernel/apic/apic_numachip.c
> +++ b/arch/x86/kernel/apic/apic_numachip.c
> @@ -25,7 +25,7 @@ static const struct apic apic_numachip1;
> static const struct apic apic_numachip2;
> static void (*numachip_apic_icr_write)(int apicid, unsigned int val) __read_mostly;
>
> -static unsigned int numachip1_get_apic_id(unsigned long x)
> +static u32 numachip1_get_apic_id(u32 x)
> {
> unsigned long value;
> unsigned int id = (x >> 24) & 0xff;
> @@ -38,12 +38,12 @@ static unsigned int numachip1_get_apic_i
> return id;
> }
>
> -static u32 numachip1_set_apic_id(unsigned int id)
> +static u32 numachip1_set_apic_id(u32 id)
> {
> return (id & 0xff) << 24;
> }
>
> -static unsigned int numachip2_get_apic_id(unsigned long x)
> +static u32 numachip2_get_apic_id(u32 x)
> {
> u64 mcfg;
>
> @@ -51,7 +51,7 @@ static unsigned int numachip2_get_apic_i
> return ((mcfg >> (28 - 8)) & 0xfff00) | (x >> 24);
> }
>
> -static u32 numachip2_set_apic_id(unsigned int id)
> +static u32 numachip2_set_apic_id(u32 id)
> {
> return id << 24;
> }
> --- a/arch/x86/kernel/apic/bigsmp_32.c
> +++ b/arch/x86/kernel/apic/bigsmp_32.c
> @@ -13,7 +13,7 @@
>
> #include "local.h"
>
> -static unsigned bigsmp_get_apic_id(unsigned long x)
> +static u32 bigsmp_get_apic_id(u32 x)
> {
> return (x >> 24) & 0xFF;
> }
> --- a/arch/x86/kernel/apic/local.h
> +++ b/arch/x86/kernel/apic/local.h
> @@ -15,8 +15,8 @@
>
> /* X2APIC */
> void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest);
> -unsigned int x2apic_get_apic_id(unsigned long id);
> -u32 x2apic_set_apic_id(unsigned int id);
> +u32 x2apic_get_apic_id(u32 id);
> +u32 x2apic_set_apic_id(u32 id);
> u32 x2apic_phys_pkg_id(u32 initial_apicid, int index_msb);
>
> void x2apic_send_IPI_all(int vector);
> --- a/arch/x86/kernel/apic/probe_32.c
> +++ b/arch/x86/kernel/apic/probe_32.c
> @@ -23,6 +23,16 @@ static u32 default_phys_pkg_id(u32 cpuid
> return cpuid_apic >> index_msb;
> }
>
> +static u32 default_get_apic_id(u32 x)
> +{
> + unsigned int ver = GET_APIC_VERSION(apic_read(APIC_LVR));
> +
> + if (APIC_XAPIC(ver) || boot_cpu_has(X86_FEATURE_EXTD_APICID))
> + return (x >> 24) & 0xFF;
> + else
> + return (x >> 24) & 0x0F;
> +}
> +
> /* should be called last. */
> static int probe_default(void)
> {
> --- a/arch/x86/kernel/apic/x2apic_phys.c
> +++ b/arch/x86/kernel/apic/x2apic_phys.c
> @@ -124,12 +124,12 @@ static int x2apic_phys_probe(void)
> return apic == &apic_x2apic_phys;
> }
>
> -unsigned int x2apic_get_apic_id(unsigned long id)
> +u32 x2apic_get_apic_id(u32 id)
> {
> return id;
> }
>
> -u32 x2apic_set_apic_id(unsigned int id)
> +u32 x2apic_set_apic_id(u32 id)
> {
> return id;
> }
> --- a/arch/x86/kernel/apic/x2apic_uv_x.c
> +++ b/arch/x86/kernel/apic/x2apic_uv_x.c
> @@ -780,7 +780,7 @@ static void uv_send_IPI_all(int vector)
> uv_send_IPI_mask(cpu_online_mask, vector);
> }
>
> -static u32 set_apic_id(unsigned int id)
> +static u32 set_apic_id(u32 id)
> {
> return id;
> }
> --- a/arch/x86/xen/apic.c
> +++ b/arch/x86/xen/apic.c
> @@ -33,13 +33,13 @@ static unsigned int xen_io_apic_read(uns
> return 0xfd;
> }
>
> -static u32 xen_set_apic_id(unsigned int x)
> +static u32 xen_set_apic_id(u32 x)
> {
> WARN_ON(1);
> return x;
> }
>
> -static unsigned int xen_get_apic_id(unsigned long x)
> +static u32 xen_get_apic_id(u32 x)
> {
> return ((x)>>24) & 0xFFu;
> }
>
--
Steve Wahl, Hewlett Packard Enterprise
