[PATCH] x86-64: Don't trust boot_cpu_id in the mptable.

[pandora-kernel.git] / arch / x86_64 / kernel / apic.c

diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 9af0cc3..a759f4e 100644 (file)
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -109,11 +109,8 @@ void clear_local_APIC(void)
        if (maxlvt >= 4)
                apic_write_around(APIC_LVTPC, APIC_LVT_MASKED);
        v = GET_APIC_VERSION(apic_read(APIC_LVR));
-       if (APIC_INTEGRATED(v)) {       /* !82489DX */
-               if (maxlvt > 3)         /* Due to Pentium errata 3AP and 11AP. */
-                       apic_write(APIC_ESR, 0);
-               apic_read(APIC_ESR);
-       }
+       apic_write(APIC_ESR, 0);
+       apic_read(APIC_ESR);
 }
 
 void __init connect_bsp_APIC(void)
@@ -316,8 +313,6 @@ void __init init_bsp_APIC(void)
         */
        apic_write_around(APIC_LVT0, APIC_DM_EXTINT);
        value = APIC_DM_NMI;
-       if (!APIC_INTEGRATED(ver))              /* 82489DX */
-               value |= APIC_LVT_LEVEL_TRIGGER;
        apic_write_around(APIC_LVT1, value);
 }
 
@@ -422,15 +417,11 @@ void __cpuinit setup_local_APIC (void)
                value = APIC_DM_NMI;
        else
                value = APIC_DM_NMI | APIC_LVT_MASKED;
-       if (!APIC_INTEGRATED(ver))              /* 82489DX */
-               value |= APIC_LVT_LEVEL_TRIGGER;
        apic_write_around(APIC_LVT1, value);
 
        {
                unsigned oldvalue;
                maxlvt = get_maxlvt();
-               if (maxlvt > 3)         /* Due to the Pentium erratum 3AP. */
-                       apic_write(APIC_ESR, 0);
                oldvalue = apic_read(APIC_ESR);
                value = ERROR_APIC_VECTOR;      // enables sending errors
                apic_write_around(APIC_LVTERR, value);
@@ -631,8 +622,7 @@ void __init init_apic_mappings(void)
         * Fetch the APIC ID of the BSP in case we have a
         * default configuration (or the MP table is broken).
         */
-       if (boot_cpu_id == -1U)
-               boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID));
+       boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID));
 
 #ifdef CONFIG_X86_IO_APIC
        {
@@ -674,8 +664,6 @@ static void __setup_APIC_LVTT(unsigned int clocks)
 
        ver = GET_APIC_VERSION(apic_read(APIC_LVR));
        lvtt_value = APIC_LVT_TIMER_PERIODIC | LOCAL_TIMER_VECTOR;
-       if (!APIC_INTEGRATED(ver))
-               lvtt_value |= SET_APIC_TIMER_BASE(APIC_TIMER_BASE_DIV);
        apic_write_around(APIC_LVTT, lvtt_value);
 
        /*
@@ -1062,7 +1050,7 @@ int __init APIC_init_uniprocessor (void)
 
        connect_bsp_APIC();
 
-       phys_cpu_present_map = physid_mask_of_physid(0);
+       phys_cpu_present_map = physid_mask_of_physid(boot_cpu_id);
        apic_write_around(APIC_ID, boot_cpu_id);
 
        setup_local_APIC();