/* * ========== Copyright Header Begin ========================================== * * OpenSPARC T2 Processor File: interrupt_pci_spurious_err.s * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved * 4150 Network Circle, Santa Clara, California 95054, U.S.A. * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * For the avoidance of doubt, and except that if any non-GPL license * choice is available it will apply instead, Sun elects to use only * the General Public License version 2 (GPLv2) at this time for any * software where a choice of GPL license versions is made * available with the language indicating that GPLv2 or any later version * may be used, or where a choice of which version of the GPL is applied is * otherwise unspecified. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * * * ========== Copyright Header End ============================================ */ #define MAIN_PAGE_HV_ALSO #define H_HT0_Interrupt_0x60 #define My_HT0_Interrupt_0x60 \ call my_trap_code; \ nop; \ retry; \ nop; #include "hboot.s" #include "peu_defines.h" #include "ncu_defines.h" #include "cmp_macros.h" /************************************************************************ Test case code start ************************************************************************/ .text .global main main: ta T_CHANGE_HPRIV nop stx %g0, [%g7] ! Clear this thread's interrupt count membar #Sync /* Initialize the NCU for the interrupt. */ ! Disable interrupts no_intr: rdpr %pstate, %g7 xor %g7, 0x2, %g7 ! Reset interrupt enable wrpr %g7, %pstate ! Initially set all the Interrupt Management Registers ! Not used in this diag, so set vector number to 1, thread to 0. ncu_init: setx INT_MAN, %g1, %g2 ! %g2 = INT_MAN reg. addr. setx INT_MAN_COUNT, %g1, %g4 ! %g4 = INT_MAN reg. count value set 1, %g1 ncu_init_loop_top: stx %g1, [%g2] add %g2, INT_MAN_STEP, %g2 cmp %g4, 1 bne ncu_init_loop_top add %g4, -1, %g4 ! Initialize Mondo Interrupt Vector Register ! VECTOR = 63 ncu_mondo_int_vec: set 63, %g1 setx MONDO_INT_VEC, %g2, %g3 stx %g1, [%g3] ! Clear Mondo Interrupt Busy registers. ncu_mondo_int_busy: setx MONDO_INT_BUSY, %g1, %g2 setx MONDO_INT_BUSY_STEP, %g1, %g3 setx MONDO_INT_BUSY_COUNT, %g1, %g4 ncu_mondo_int_busy_loop_top: stx %g0, [%g2] add %g2, %g3, %g2 cmp %g4, 1 bne ncu_mondo_int_busy_loop_top dec %g4 ! Initialize for error interrupt in PIU ! First clear error in case one pending. peu_error_clear: setx PCI_E_MMU_ERR_STAT_CL_ADDR, %g1, %g2 sub %g0, 1, %g3 ! W1C stx %g3, [%g2] ! Also clear in Interrupt Clear reg. peu_intr_clear: setx PCI_E_INT_CLEAR_ADDR, %g1, %g2 setx PCI_E_INT_CLEAR_MONDO_62_OFFSET, %g1, %g4 add %g2, %g4, %g2 stx %g0, [%g2] ! Now enable Mondo 62 in PIU and set destination thread peu_mondo62_enable: setx PCI_E_INT_MAP_ADDR, %g1, %g7 setx PCI_E_INT_MAP_MONDO_62_OFFSET, %g1, %g3 add %g7, %g3, %g7 setx 0x80000040, %g1, %g6 ! valid = 1, thread id = 0 stx %g6, [%g7] ! interrupt controller = 1 ! Enable MMU block mondo 62 interrupts peu_dmu_error_enable: setx PCI_E_DMU_INT_ENB_ADDR, %g1, %g2 setx 0x8000000000000002, %g1, %g3 ! DMC = 1, MMU = 1 stx %g3, [%g2] ! Enable Bypass access with BE = 0 primary error peu_mmu_error_enable: setx PCI_E_MMU_INT_ENB_ADDR, %g1, %g2 set 1, %g3 stx %g3, [%g2] ! Enable interrupts yes_intr: rdpr %pstate, %g7 or %g7, 0x2, %g7 ! Set interrupt enable wrpr %g7, %pstate /* Generate the error and therefore the interrupt */ mmu_error_set: setx PCI_E_MMU_ERR_STAT_SET_ADDR, %g1, %g2 set 1, %g3 stx %g3, [%g2] /* Wait for two interrupts to occur */ intr_wait_2: setx 0x800, %g1, %g2 ! timeout count setx user_data_start, %g1, %g3 intr_wait_loop_top_2: ldx [%g3], %g5 cmp %g5, 2 be test_passed dec %g2 cmp %g2, 0 bne intr_wait_loop_top_2 nop ba local_test_failed nop test_passed: EXIT_GOOD local_test_failed: EXIT_BAD /********************************************************************** Interrupt trap handler. **********************************************************************/ .global my_trap_code my_trap_code: ! Get the thread id. ta T_RD_THID ! %o1 = thread id ! Check Mondo Interrupt Busy reg. for this thread trap_mondo_busy: setx MONDO_INT_BUSY, %l1, %l2 setx MONDO_INT_BUSY_STEP, %l1, %l3 mulx %l3, %o1, %l3 add %l3, %l2, %l2 ldx [%l2], %l4 and %l4, 0x40, %l5 ! Is busy bit set? cmp %l5, 0 be local_test_failed nop ! Check Mondo Interrupt Alias Busy reg. trap_mondo_abusy: setx MONDO_INT_ABUSY, %l1, %l2 ldx [%l2], %l3 cmp %l3, %l4 ! ABUSY = BUSY ? bne local_test_failed nop ! Check Mondo Interrupt Data 0/1 against Mondo Interrupt Alias Data 0/1 trap_mondo_data0: setx MONDO_INT_DATA0, %l1, %l2 setx MONDO_INT_DATA0_STEP, %l1, %l3 mulx %l3, %o1, %l3 add %l3, %l2, %l2 ldx [%l2], %l0 ! %l0 = mondo_int_busy0 trap_mondo_adata0: setx MONDO_INT_ADATA0, %l1, %l4 ! %l5 = mondo_int_abusy0 ldx [%l4], %l5 cmp %l5, %l0 bne local_test_failed nop trap_mondo_data1: setx MONDO_INT_DATA1, %l1, %l2 setx MONDO_INT_DATA1_STEP, %l1, %l3 mulx %l3, %o1, %l3 add %l3, %l2, %l2 ldx [%l2], %l0 ! %l0 = mondo_int_busy1 trap_mondo_adata1: setx MONDO_INT_ADATA1, %l1, %l4 ! %l5 = mondo_int_abusy1 ldx [%l4], %l5 cmp %l5, %l0 bne local_test_failed nop ! Check error status in PIU ! Interrupt Clear reg. trap_peu_intr_clear: setx PCI_E_INT_CLEAR_ADDR, %l1, %l2 setx PCI_E_INT_CLEAR_MONDO_62_OFFSET, %l1, %l3 add %l2, %l3, %l2 ldx [%l2], %l0 cmp %l0, 3 ! Should be in pending state bne local_test_failed nop ! MMU Interrupt Status reg. trap_mmu_intr_status: setx PCI_E_MMU_INT_STAT_ADDR, %l1, %l2 ldx [%l2], %l0 cmp %l0, 1 bne local_test_failed nop ! MMU Error Status Clear reg. trap_mmu_err_status_clear: setx PCI_E_MMU_ERR_STAT_CL_ADDR, %l1, %l2 ldx [%l2], %l0 cmp %l0, 1 bne local_test_failed nop ! All status checking done. ! Only on second interrupt, clear the error, MMU Error Status Set reg. trap_intr_check: setx user_data_start, %l2, %l6 ! Do not overwrite %l6 ! ldx [%l6], %l7 ! Do not overwrite %l7 ! cmp %l7, 1 bgt local_test_failed ! Should only get 2 nop bne trap_piu_mondo_clear nop ! Clear error in MMU Error Status Set reg. trap_clear_error: setx PCI_E_MMU_ERR_STAT_CL_ADDR, %l1, %l2 ldx [%l2], %l1 stx %l1, [%l2] ! RW1C reg. membar #Sync ldx [%l2], %g0 membar #Sync ! Don't be hasty ! Clear the error, mondo 62 interrupt in the PIU, via Interrupt Clear reg. trap_piu_mondo_clear: setx PCI_E_INT_CLEAR_ADDR, %l0, %l2 setx PCI_E_INT_CLEAR_MONDO_62_OFFSET, %l1, %l3 add %l2, %l3, %l2 set 1, %l4 stx %l4, [%l2] membar #Sync ! Don't be hasty ! Clear the mondo interrupt in the NCU trap_mondo_intr_clear: setx MONDO_INT_ABUSY, %l0, %l1 stx %g0, [%l1] membar #Sync ldx [%l1], %l2 and %l2, 0x40, %l2 cmp %l2, 0 ! Busy should be cleared bne local_test_failed nop membar #Sync ! Don't be hasty ! Clear the interrupt in the core trap_clear_asi_intr_r: ldxa [%g0]ASI_SWVR_INTR_R, %l5 cmp %l5, 63 ! check for correct vector number bne local_test_failed nop ! Indicate that the interrupt trap occured trap_flag: inc %l7 stx %l7, [%l6] membar #Sync ! Done. trap_done: jmpl %o7+0x8, %g0 nop /************************************************************************ Test case data start ************************************************************************/ .align 1024 .data user_data_start: .word 0x0 .word 0x0 .word 0x0 .word 0x0 user_data_end: .end /************************************************************************/