mirror of https://gitee.com/openkylin/linux.git
MIPS: OCTEON: Delete unused COP2 saving code
Commit2c952e06e4
("MIPS: Move cop2 save/restore to switch_to()") removes assembler code to store COP2 registers. Commita36d8225bc
("MIPS: OCTEON: Enable use of FPU") mistakenly restores it Fixes:a36d8225bc
("MIPS: OCTEON: Enable use of FPU") Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: David Daney <david.daney@cavium.com> Patchwork: https://patchwork.linux-mips.org/patch/8937/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -52,32 +52,6 @@
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.set pop
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1:
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/* check if we need to save COP2 registers */
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LONG_L t0, ST_OFF(t3)
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bbit0 t0, 30, 1f
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/* Disable COP2 in the stored process state */
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li t1, ST0_CU2
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xor t0, t1
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LONG_S t0, ST_OFF(t3)
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/* Enable COP2 so we can save it */
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mfc0 t0, CP0_STATUS
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or t0, t1
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mtc0 t0, CP0_STATUS
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/* Save COP2 */
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daddu a0, THREAD_CP2
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jal octeon_cop2_save
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dsubu a0, THREAD_CP2
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/* Disable COP2 now that we are done */
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mfc0 t0, CP0_STATUS
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li t1, ST0_CU2
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xor t0, t1
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mtc0 t0, CP0_STATUS
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1:
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#if CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0
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/* Check if we need to store CVMSEG state */
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dmfc0 t0, $11,7 /* CvmMemCtl */
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