cell/spufs/switch.c

1775 static int quiece_spu(struct spu_state *prev, struct spu *spu)
1787 	if (check_spu_isolate(prev, spu)) {	/* Step 2. */
1790 	disable_interrupts(prev, spu);	        /* Step 3. */
1791 	set_watchdog_timer(prev, spu);	        /* Step 4. */
1792 	inhibit_user_access(prev, spu);	        /* Step 5. */
1793 	if (check_spu_isolate(prev, spu)) {	/* Step 6. */
1796 	set_switch_pending(prev, spu);	        /* Step 7. */
1797 	save_mfc_cntl(prev, spu);		/* Step 8. */
1798 	save_spu_runcntl(prev, spu);	        /* Step 9. */
1799 	save_mfc_sr1(prev, spu);	        /* Step 10. */
1800 	save_spu_status(prev, spu);	        /* Step 11. */
1801 	save_mfc_stopped_status(prev, spu);     /* Step 12. */
1802 	halt_mfc_decr(prev, spu);	        /* Step 13. */
1803 	save_timebase(prev, spu);		/* Step 14. */
1804 	remove_other_spu_access(prev, spu);	/* Step 15. */
1805 	do_mfc_mssync(prev, spu);	        /* Step 16. */
1806 	issue_mfc_tlbie(prev, spu);	        /* Step 17. */
1807 	handle_pending_interrupts(prev, spu);	/* Step 18. */
1812 static void save_csa(struct spu_state *prev, struct spu *spu)
1819 	save_mfc_queues(prev, spu);	/* Step 19. */
1820 	save_ppu_querymask(prev, spu);	/* Step 20. */
1821 	save_ppu_querytype(prev, spu);	/* Step 21. */
1822 	save_ppu_tagstatus(prev, spu);  /* NEW.     */
1823 	save_mfc_csr_tsq(prev, spu);	/* Step 22. */
1824 	save_mfc_csr_cmd(prev, spu);	/* Step 23. */
1825 	save_mfc_csr_ato(prev, spu);	/* Step 24. */
1826 	save_mfc_tclass_id(prev, spu);	/* Step 25. */
1827 	set_mfc_tclass_id(prev, spu);	/* Step 26. */
1828 	save_mfc_cmd(prev, spu);	/* Step 26a - moved from 44. */
1829 	purge_mfc_queue(prev, spu);	/* Step 27. */
1830 	wait_purge_complete(prev, spu);	/* Step 28. */
1831 	setup_mfc_sr1(prev, spu);	/* Step 30. */
1832 	save_spu_npc(prev, spu);	/* Step 31. */
1833 	save_spu_privcntl(prev, spu);	/* Step 32. */
1834 	reset_spu_privcntl(prev, spu);	/* Step 33. */
1835 	save_spu_lslr(prev, spu);	/* Step 34. */
1836 	reset_spu_lslr(prev, spu);	/* Step 35. */
1837 	save_spu_cfg(prev, spu);	/* Step 36. */
1838 	save_pm_trace(prev, spu);	/* Step 37. */
1839 	save_mfc_rag(prev, spu);	/* Step 38. */
1840 	save_ppu_mb_stat(prev, spu);	/* Step 39. */
1841 	save_ppu_mb(prev, spu);	        /* Step 40. */
1842 	save_ppuint_mb(prev, spu);	/* Step 41. */
1843 	save_ch_part1(prev, spu);	/* Step 42. */
1844 	save_spu_mb(prev, spu);	        /* Step 43. */
1845 	reset_ch(prev, spu);	        /* Step 45. */
1848 static void save_lscsa(struct spu_state *prev, struct spu *spu)
1856 	resume_mfc_queue(prev, spu);	/* Step 46. */
1858 	setup_mfc_slbs(prev, spu, spu_save_code, sizeof(spu_save_code));
1859 	set_switch_active(prev, spu);	/* Step 48. */
1860 	enable_interrupts(prev, spu);	/* Step 49. */
1861 	save_ls_16kb(prev, spu);	/* Step 50. */
1862 	set_spu_npc(prev, spu);	        /* Step 51. */
1863 	set_signot1(prev, spu);		/* Step 52. */
1864 	set_signot2(prev, spu);		/* Step 53. */
1865 	send_save_code(prev, spu);	/* Step 54. */
1866 	set_ppu_querymask(prev, spu);	/* Step 55. */
1867 	wait_tag_complete(prev, spu);	/* Step 56. */
1868 	wait_spu_stopped(prev, spu);	/* Step 57. */
1916 static void harvest(struct spu_state *prev, struct spu *spu)
1924 	disable_interrupts(prev, spu);	        /* Step 2.  */
1925 	inhibit_user_access(prev, spu);	        /* Step 3.  */
1926 	terminate_spu_app(prev, spu);	        /* Step 4.  */
1927 	set_switch_pending(prev, spu);	        /* Step 5.  */
1929 	remove_other_spu_access(prev, spu);	/* Step 6.  */
1930 	suspend_mfc_and_halt_decr(prev, spu);	/* Step 7.  */
1931 	wait_suspend_mfc_complete(prev, spu);	/* Step 8.  */
1932 	if (!suspend_spe(prev, spu))	        /* Step 9.  */
1933 		clear_spu_status(prev, spu);	/* Step 10. */
1934 	do_mfc_mssync(prev, spu);	        /* Step 11. */
1935 	issue_mfc_tlbie(prev, spu);	        /* Step 12. */
1936 	handle_pending_interrupts(prev, spu);	/* Step 13. */
1937 	purge_mfc_queue(prev, spu);	        /* Step 14. */
1938 	wait_purge_complete(prev, spu);	        /* Step 15. */
1939 	reset_spu_privcntl(prev, spu);	        /* Step 16. */
1940 	reset_spu_lslr(prev, spu);              /* Step 17. */
1941 	setup_mfc_sr1(prev, spu);	        /* Step 18. */
1943 	reset_ch_part1(prev, spu);	        /* Step 20. */
1944 	reset_ch_part2(prev, spu);	        /* Step 21. */
1945 	enable_interrupts(prev, spu);	        /* Step 22. */
1946 	set_switch_active(prev, spu);	        /* Step 23. */
1947 	set_mfc_tclass_id(prev, spu);	        /* Step 24. */
1948 	resume_mfc_queue(prev, spu);	        /* Step 25. */
2022 static int __do_spu_save(struct spu_state *prev, struct spu *spu)
2038 	rc = quiece_spu(prev, spu);	        /* Steps 2-16. */
2043 		harvest(prev, spu);
2049 	save_csa(prev, spu);	                /* Steps 17-43. */
2050 	save_lscsa(prev, spu);	                /* Steps 44-53. */
2051 	return check_save_status(prev, spu);	/* Step 54.     */
2087  * @prev: pointer to SPU context save area, to be saved.
2092 int spu_save(struct spu_state *prev, struct spu *spu)
2097 	rc = __do_spu_save(prev, spu);	/* Steps 2-53. */