calmsacibis995
104 lines
2.1 KiB
ArmAsm
104 lines
2.1 KiB
ArmAsm
/***********************************************************************\
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* File: mtest_asm.s *
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* *
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* This file contains memory routines in handcoded *
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* assembly so that they run as fast as possible. *
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* *
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* Would it be possible to use the BTE to further speed them up? *
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* *
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\***********************************************************************/
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#ident "$Revision: 1.3 $"
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#include <asm.h>
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#include <sys/regdef.h>
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#include <sys/sbd.h>
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#include <sys/SN/agent.h>
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#include "mtest.h"
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.text
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.set at
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.set reorder
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#define T_S4D(r, A, B, C, D) \
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.set noreorder; \
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sd A, 0(r); \
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sd B, 8(r); \
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sd C, 16(r); \
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sd D, 24(r); \
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.set reorder
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#define T_L4D(r, A, B, C, D) \
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.set noreorder; \
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ld A, 0(r); \
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ld B, 8(r); \
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ld C, 16(r); \
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ld D, 24(r); \
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.set reorder
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/*
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* mtest_compare_prom
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*
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* Compares PROM data with data elsewhere in memory
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*
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* a0 Source address in PROM (word-aligned)
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* a1 Source address in RAM (word-aligned)
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* a2 Length in bytes (will be rounded up to a multiple of 64)
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* a3 Pointer to mtest_fail_t structure to receive failure info
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*
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* Returns 0 for success, -1 for failure.
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*/
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#define MCP_CHECK(exp, act, off) \
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beq exp, act, 1f; \
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move t0, exp; \
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move ta0, act; \
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li v0, off; \
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b 9f; \
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1:
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LEAF(mtest_compare_prom)
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beqz a2, 10f # Done if NULL compare
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daddu a2, 63 # Round up to a multiple of 64
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and a2, ~63
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1:
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T_L4D(a0, t0, t1, t2, t3)
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T_L4D(a1, ta0, ta1, ta2, ta3)
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MCP_CHECK(t0, ta0, 0)
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MCP_CHECK(t1, ta1, 8)
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MCP_CHECK(t2, ta2, 16)
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MCP_CHECK(t3, ta3, 24)
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daddu a0, 32
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daddu a1, 32
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dsubu a2, 32
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bnez a2, 1b
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10:
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li v0, 0 # Return success
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j ra
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9: daddu a1, v0 # Failed address adjustment
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ld v0, 0(a1)
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sd v0, MTEST_FAIL_OFF_REREAD(a3)
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sd a1, MTEST_FAIL_OFF_ADDR(a3)
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li v0, -1
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sd v0, MTEST_FAIL_OFF_MASK(a3)
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sd t0, MTEST_FAIL_OFF_EXPECT(a3)
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sd ta0, MTEST_FAIL_OFF_ACTUAL(a3)
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ld v0, LOCAL_HUB(MD_MEM_ERROR_CLR)
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sd v0, MTEST_FAIL_OFF_MEM_ERR(a3)
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ld v0, LOCAL_HUB(MD_DIR_ERROR_CLR)
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sd v0, MTEST_FAIL_OFF_DIR_ERR(a3)
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li v0, -1 # Return failure
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j ra
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END(mtest_compare_prom)
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