summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/powernv/opal-wrappers.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal-wrappers.S')
-rw-r--r--arch/powerpc/platforms/powernv/opal-wrappers.S344
1 files changed, 39 insertions, 305 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index f4875fe3f8ff..7d2052d8af9d 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -17,317 +17,51 @@
#include <asm/asm-compat.h>
#include <asm/feature-fixups.h>
- .section ".text"
-
-#ifdef CONFIG_TRACEPOINTS
-#ifdef CONFIG_JUMP_LABEL
-#define OPAL_BRANCH(LABEL) \
- ARCH_STATIC_BRANCH(LABEL, opal_tracepoint_key)
-#else
-
- .section ".toc","aw"
-
- .globl opal_tracepoint_refcount
-opal_tracepoint_refcount:
- .8byte 0
-
- .section ".text"
-
-/*
- * We branch around this in early init by using an unconditional cpu
- * feature.
- */
-#define OPAL_BRANCH(LABEL) \
-BEGIN_FTR_SECTION; \
- b 1f; \
-END_FTR_SECTION(0, 1); \
- ld r11,opal_tracepoint_refcount@toc(r2); \
- cmpdi r11,0; \
- bne- LABEL; \
-1:
-
-#endif
-
-#else
-#define OPAL_BRANCH(LABEL)
-#endif
+ .section ".text"
/*
- * DO_OPAL_CALL assumes:
- * r0 = opal call token
- * r12 = msr
- * LR has been saved
+ * r3-r10 - OPAL call arguments
+ * STK_PARAM(R11) - OPAL opcode
+ * STK_PARAM(R12) - MSR to restore
*/
-#define DO_OPAL_CALL() \
- mfcr r11; \
- stw r11,8(r1); \
- li r11,0; \
- ori r11,r11,MSR_EE; \
- std r12,PACASAVEDMSR(r13); \
- andc r12,r12,r11; \
- mtmsrd r12,1; \
- LOAD_REG_ADDR(r11,opal_return); \
- mtlr r11; \
- li r11,MSR_DR|MSR_IR|MSR_LE;\
- andc r12,r12,r11; \
- mtspr SPRN_HSRR1,r12; \
- LOAD_REG_ADDR(r11,opal); \
- ld r12,8(r11); \
- ld r2,0(r11); \
- mtspr SPRN_HSRR0,r12; \
+_GLOBAL_TOC(__opal_call)
+ mflr r0
+ std r0,PPC_LR_STKOFF(r1)
+ ld r12,STK_PARAM(R12)(r1)
+ li r0,MSR_IR|MSR_DR|MSR_LE
+ andc r12,r12,r0
+ LOAD_REG_ADDR(r11, opal_return)
+ mtlr r11
+ LOAD_REG_ADDR(r11, opal)
+ ld r2,0(r11)
+ ld r11,8(r11)
+ mtspr SPRN_HSRR0,r11
+ mtspr SPRN_HSRR1,r12
+ /* set token to r0 */
+ ld r0,STK_PARAM(R11)(r1)
hrfid
-
-#define OPAL_CALL(name, token) \
- _GLOBAL_TOC(name); \
- mfmsr r12; \
- mflr r0; \
- andi. r11,r12,MSR_IR|MSR_DR; \
- std r0,PPC_LR_STKOFF(r1); \
- li r0,token; \
- beq opal_real_call; \
- OPAL_BRANCH(opal_tracepoint_entry) \
- DO_OPAL_CALL()
-
-
opal_return:
/*
- * Fixup endian on OPAL return... we should be able to simplify
- * this by instead converting the below trampoline to a set of
- * bytes (always BE) since MSR:LE will end up fixed up as a side
- * effect of the rfid.
+ * Restore MSR on OPAL return. The MSR is set to big-endian.
*/
- FIXUP_ENDIAN_HV
- ld r2,PACATOC(r13);
- lwz r4,8(r1);
- ld r5,PPC_LR_STKOFF(r1);
- ld r6,PACASAVEDMSR(r13);
- mtcr r4;
- mtspr SPRN_HSRR0,r5;
- mtspr SPRN_HSRR1,r6;
- hrfid
-
-opal_real_call:
- mfcr r11
- stw r11,8(r1)
- /* Set opal return address */
- LOAD_REG_ADDR(r11, opal_return_realmode)
- mtlr r11
- li r11,MSR_LE
- andc r12,r12,r11
- mtspr SPRN_HSRR1,r12
- LOAD_REG_ADDR(r11,opal)
- ld r12,8(r11)
- ld r2,0(r11)
- mtspr SPRN_HSRR0,r12
- hrfid
-
-opal_return_realmode:
- FIXUP_ENDIAN_HV
- ld r2,PACATOC(r13);
- lwz r11,8(r1);
- ld r12,PPC_LR_STKOFF(r1)
- mtcr r11;
- mtlr r12
- blr
-
-#ifdef CONFIG_TRACEPOINTS
-opal_tracepoint_entry:
- stdu r1,-STACKFRAMESIZE(r1)
- std r0,STK_REG(R23)(r1)
- std r3,STK_REG(R24)(r1)
- std r4,STK_REG(R25)(r1)
- std r5,STK_REG(R26)(r1)
- std r6,STK_REG(R27)(r1)
- std r7,STK_REG(R28)(r1)
- std r8,STK_REG(R29)(r1)
- std r9,STK_REG(R30)(r1)
- std r10,STK_REG(R31)(r1)
- mr r3,r0
- addi r4,r1,STK_REG(R24)
- bl __trace_opal_entry
- ld r0,STK_REG(R23)(r1)
- ld r3,STK_REG(R24)(r1)
- ld r4,STK_REG(R25)(r1)
- ld r5,STK_REG(R26)(r1)
- ld r6,STK_REG(R27)(r1)
- ld r7,STK_REG(R28)(r1)
- ld r8,STK_REG(R29)(r1)
- ld r9,STK_REG(R30)(r1)
- ld r10,STK_REG(R31)(r1)
-
- /* setup LR so we return via tracepoint_return */
- LOAD_REG_ADDR(r11,opal_tracepoint_return)
- std r11,16(r1)
-
- mfmsr r12
- DO_OPAL_CALL()
-
-opal_tracepoint_return:
- std r3,STK_REG(R31)(r1)
- mr r4,r3
- ld r3,STK_REG(R23)(r1)
- bl __trace_opal_exit
- ld r3,STK_REG(R31)(r1)
- addi r1,r1,STACKFRAMESIZE
- ld r0,16(r1)
+#ifdef __BIG_ENDIAN__
+ ld r11,STK_PARAM(R12)(r1)
+ mtmsrd r11
+#else
+ /* Endian can only be switched with rfi, must byte reverse MSR load */
+ .short 0x4039 /* li r10,STK_PARAM(R12) */
+ .byte (STK_PARAM(R12) >> 8) & 0xff
+ .byte STK_PARAM(R12) & 0xff
+
+ .long 0x280c6a7d /* ldbrx r11,r10,r1 */
+ .long 0x05009f42 /* bcl 20,31,$+4 */
+ .long 0xa602487d /* mflr r10 */
+ .long 0x14004a39 /* addi r10,r10,20 */
+ .long 0xa64b5a7d /* mthsrr0 r10 */
+ .long 0xa64b7b7d /* mthsrr1 r11 */
+ .long 0x2402004c /* hrfid */
+#endif
+ ld r2,PACATOC(r13)
+ ld r0,PPC_LR_STKOFF(r1)
mtlr r0
blr
-#endif
-
-
-OPAL_CALL(opal_invalid_call, OPAL_INVALID_CALL);
-OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE);
-OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ);
-OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE);
-OPAL_CALL(opal_rtc_read, OPAL_RTC_READ);
-OPAL_CALL(opal_rtc_write, OPAL_RTC_WRITE);
-OPAL_CALL(opal_cec_power_down, OPAL_CEC_POWER_DOWN);
-OPAL_CALL(opal_cec_reboot, OPAL_CEC_REBOOT);
-OPAL_CALL(opal_cec_reboot2, OPAL_CEC_REBOOT2);
-OPAL_CALL(opal_read_nvram, OPAL_READ_NVRAM);
-OPAL_CALL(opal_write_nvram, OPAL_WRITE_NVRAM);
-OPAL_CALL(opal_handle_interrupt, OPAL_HANDLE_INTERRUPT);
-OPAL_CALL(opal_poll_events, OPAL_POLL_EVENTS);
-OPAL_CALL(opal_pci_set_hub_tce_memory, OPAL_PCI_SET_HUB_TCE_MEMORY);
-OPAL_CALL(opal_pci_set_phb_tce_memory, OPAL_PCI_SET_PHB_TCE_MEMORY);
-OPAL_CALL(opal_pci_config_read_byte, OPAL_PCI_CONFIG_READ_BYTE);
-OPAL_CALL(opal_pci_config_read_half_word, OPAL_PCI_CONFIG_READ_HALF_WORD);
-OPAL_CALL(opal_pci_config_read_word, OPAL_PCI_CONFIG_READ_WORD);
-OPAL_CALL(opal_pci_config_write_byte, OPAL_PCI_CONFIG_WRITE_BYTE);
-OPAL_CALL(opal_pci_config_write_half_word, OPAL_PCI_CONFIG_WRITE_HALF_WORD);
-OPAL_CALL(opal_pci_config_write_word, OPAL_PCI_CONFIG_WRITE_WORD);
-OPAL_CALL(opal_set_xive, OPAL_SET_XIVE);
-OPAL_CALL(opal_get_xive, OPAL_GET_XIVE);
-OPAL_CALL(opal_register_exception_handler, OPAL_REGISTER_OPAL_EXCEPTION_HANDLER);
-OPAL_CALL(opal_pci_eeh_freeze_status, OPAL_PCI_EEH_FREEZE_STATUS);
-OPAL_CALL(opal_pci_eeh_freeze_clear, OPAL_PCI_EEH_FREEZE_CLEAR);
-OPAL_CALL(opal_pci_eeh_freeze_set, OPAL_PCI_EEH_FREEZE_SET);
-OPAL_CALL(opal_pci_err_inject, OPAL_PCI_ERR_INJECT);
-OPAL_CALL(opal_pci_shpc, OPAL_PCI_SHPC);
-OPAL_CALL(opal_pci_phb_mmio_enable, OPAL_PCI_PHB_MMIO_ENABLE);
-OPAL_CALL(opal_pci_set_phb_mem_window, OPAL_PCI_SET_PHB_MEM_WINDOW);
-OPAL_CALL(opal_pci_map_pe_mmio_window, OPAL_PCI_MAP_PE_MMIO_WINDOW);
-OPAL_CALL(opal_pci_set_phb_table_memory, OPAL_PCI_SET_PHB_TABLE_MEMORY);
-OPAL_CALL(opal_pci_set_pe, OPAL_PCI_SET_PE);
-OPAL_CALL(opal_pci_set_peltv, OPAL_PCI_SET_PELTV);
-OPAL_CALL(opal_pci_set_mve, OPAL_PCI_SET_MVE);
-OPAL_CALL(opal_pci_set_mve_enable, OPAL_PCI_SET_MVE_ENABLE);
-OPAL_CALL(opal_pci_get_xive_reissue, OPAL_PCI_GET_XIVE_REISSUE);
-OPAL_CALL(opal_pci_set_xive_reissue, OPAL_PCI_SET_XIVE_REISSUE);
-OPAL_CALL(opal_pci_set_xive_pe, OPAL_PCI_SET_XIVE_PE);
-OPAL_CALL(opal_get_xive_source, OPAL_GET_XIVE_SOURCE);
-OPAL_CALL(opal_get_msi_32, OPAL_GET_MSI_32);
-OPAL_CALL(opal_get_msi_64, OPAL_GET_MSI_64);
-OPAL_CALL(opal_start_cpu, OPAL_START_CPU);
-OPAL_CALL(opal_query_cpu_status, OPAL_QUERY_CPU_STATUS);
-OPAL_CALL(opal_write_oppanel, OPAL_WRITE_OPPANEL);
-OPAL_CALL(opal_pci_map_pe_dma_window, OPAL_PCI_MAP_PE_DMA_WINDOW);
-OPAL_CALL(opal_pci_map_pe_dma_window_real, OPAL_PCI_MAP_PE_DMA_WINDOW_REAL);
-OPAL_CALL(opal_pci_reset, OPAL_PCI_RESET);
-OPAL_CALL(opal_pci_get_hub_diag_data, OPAL_PCI_GET_HUB_DIAG_DATA);
-OPAL_CALL(opal_pci_get_phb_diag_data, OPAL_PCI_GET_PHB_DIAG_DATA);
-OPAL_CALL(opal_pci_fence_phb, OPAL_PCI_FENCE_PHB);
-OPAL_CALL(opal_pci_reinit, OPAL_PCI_REINIT);
-OPAL_CALL(opal_pci_mask_pe_error, OPAL_PCI_MASK_PE_ERROR);
-OPAL_CALL(opal_set_slot_led_status, OPAL_SET_SLOT_LED_STATUS);
-OPAL_CALL(opal_get_epow_status, OPAL_GET_EPOW_STATUS);
-OPAL_CALL(opal_get_dpo_status, OPAL_GET_DPO_STATUS);
-OPAL_CALL(opal_set_system_attention_led, OPAL_SET_SYSTEM_ATTENTION_LED);
-OPAL_CALL(opal_pci_next_error, OPAL_PCI_NEXT_ERROR);
-OPAL_CALL(opal_pci_poll, OPAL_PCI_POLL);
-OPAL_CALL(opal_pci_msi_eoi, OPAL_PCI_MSI_EOI);
-OPAL_CALL(opal_pci_get_phb_diag_data2, OPAL_PCI_GET_PHB_DIAG_DATA2);
-OPAL_CALL(opal_xscom_read, OPAL_XSCOM_READ);
-OPAL_CALL(opal_xscom_write, OPAL_XSCOM_WRITE);
-OPAL_CALL(opal_lpc_read, OPAL_LPC_READ);
-OPAL_CALL(opal_lpc_write, OPAL_LPC_WRITE);
-OPAL_CALL(opal_return_cpu, OPAL_RETURN_CPU);
-OPAL_CALL(opal_reinit_cpus, OPAL_REINIT_CPUS);
-OPAL_CALL(opal_read_elog, OPAL_ELOG_READ);
-OPAL_CALL(opal_send_ack_elog, OPAL_ELOG_ACK);
-OPAL_CALL(opal_get_elog_size, OPAL_ELOG_SIZE);
-OPAL_CALL(opal_resend_pending_logs, OPAL_ELOG_RESEND);
-OPAL_CALL(opal_write_elog, OPAL_ELOG_WRITE);
-OPAL_CALL(opal_validate_flash, OPAL_FLASH_VALIDATE);
-OPAL_CALL(opal_manage_flash, OPAL_FLASH_MANAGE);
-OPAL_CALL(opal_update_flash, OPAL_FLASH_UPDATE);
-OPAL_CALL(opal_resync_timebase, OPAL_RESYNC_TIMEBASE);
-OPAL_CALL(opal_check_token, OPAL_CHECK_TOKEN);
-OPAL_CALL(opal_dump_init, OPAL_DUMP_INIT);
-OPAL_CALL(opal_dump_info, OPAL_DUMP_INFO);
-OPAL_CALL(opal_dump_info2, OPAL_DUMP_INFO2);
-OPAL_CALL(opal_dump_read, OPAL_DUMP_READ);
-OPAL_CALL(opal_dump_ack, OPAL_DUMP_ACK);
-OPAL_CALL(opal_get_msg, OPAL_GET_MSG);
-OPAL_CALL(opal_write_oppanel_async, OPAL_WRITE_OPPANEL_ASYNC);
-OPAL_CALL(opal_check_completion, OPAL_CHECK_ASYNC_COMPLETION);
-OPAL_CALL(opal_dump_resend_notification, OPAL_DUMP_RESEND);
-OPAL_CALL(opal_sync_host_reboot, OPAL_SYNC_HOST_REBOOT);
-OPAL_CALL(opal_sensor_read, OPAL_SENSOR_READ);
-OPAL_CALL(opal_get_param, OPAL_GET_PARAM);
-OPAL_CALL(opal_set_param, OPAL_SET_PARAM);
-OPAL_CALL(opal_handle_hmi, OPAL_HANDLE_HMI);
-OPAL_CALL(opal_config_cpu_idle_state, OPAL_CONFIG_CPU_IDLE_STATE);
-OPAL_CALL(opal_slw_set_reg, OPAL_SLW_SET_REG);
-OPAL_CALL(opal_register_dump_region, OPAL_REGISTER_DUMP_REGION);
-OPAL_CALL(opal_unregister_dump_region, OPAL_UNREGISTER_DUMP_REGION);
-OPAL_CALL(opal_pci_set_phb_cxl_mode, OPAL_PCI_SET_PHB_CAPI_MODE);
-OPAL_CALL(opal_tpo_write, OPAL_WRITE_TPO);
-OPAL_CALL(opal_tpo_read, OPAL_READ_TPO);
-OPAL_CALL(opal_ipmi_send, OPAL_IPMI_SEND);
-OPAL_CALL(opal_ipmi_recv, OPAL_IPMI_RECV);
-OPAL_CALL(opal_i2c_request, OPAL_I2C_REQUEST);
-OPAL_CALL(opal_flash_read, OPAL_FLASH_READ);
-OPAL_CALL(opal_flash_write, OPAL_FLASH_WRITE);
-OPAL_CALL(opal_flash_erase, OPAL_FLASH_ERASE);
-OPAL_CALL(opal_prd_msg, OPAL_PRD_MSG);
-OPAL_CALL(opal_leds_get_ind, OPAL_LEDS_GET_INDICATOR);
-OPAL_CALL(opal_leds_set_ind, OPAL_LEDS_SET_INDICATOR);
-OPAL_CALL(opal_console_flush, OPAL_CONSOLE_FLUSH);
-OPAL_CALL(opal_get_device_tree, OPAL_GET_DEVICE_TREE);
-OPAL_CALL(opal_pci_get_presence_state, OPAL_PCI_GET_PRESENCE_STATE);
-OPAL_CALL(opal_pci_get_power_state, OPAL_PCI_GET_POWER_STATE);
-OPAL_CALL(opal_pci_set_power_state, OPAL_PCI_SET_POWER_STATE);
-OPAL_CALL(opal_int_get_xirr, OPAL_INT_GET_XIRR);
-OPAL_CALL(opal_int_set_cppr, OPAL_INT_SET_CPPR);
-OPAL_CALL(opal_int_eoi, OPAL_INT_EOI);
-OPAL_CALL(opal_int_set_mfrr, OPAL_INT_SET_MFRR);
-OPAL_CALL(opal_pci_tce_kill, OPAL_PCI_TCE_KILL);
-OPAL_CALL(opal_nmmu_set_ptcr, OPAL_NMMU_SET_PTCR);
-OPAL_CALL(opal_xive_reset, OPAL_XIVE_RESET);
-OPAL_CALL(opal_xive_get_irq_info, OPAL_XIVE_GET_IRQ_INFO);
-OPAL_CALL(opal_xive_get_irq_config, OPAL_XIVE_GET_IRQ_CONFIG);
-OPAL_CALL(opal_xive_set_irq_config, OPAL_XIVE_SET_IRQ_CONFIG);
-OPAL_CALL(opal_xive_get_queue_info, OPAL_XIVE_GET_QUEUE_INFO);
-OPAL_CALL(opal_xive_set_queue_info, OPAL_XIVE_SET_QUEUE_INFO);
-OPAL_CALL(opal_xive_donate_page, OPAL_XIVE_DONATE_PAGE);
-OPAL_CALL(opal_xive_alloc_vp_block, OPAL_XIVE_ALLOCATE_VP_BLOCK);
-OPAL_CALL(opal_xive_free_vp_block, OPAL_XIVE_FREE_VP_BLOCK);
-OPAL_CALL(opal_xive_allocate_irq, OPAL_XIVE_ALLOCATE_IRQ);
-OPAL_CALL(opal_xive_free_irq, OPAL_XIVE_FREE_IRQ);
-OPAL_CALL(opal_xive_get_vp_info, OPAL_XIVE_GET_VP_INFO);
-OPAL_CALL(opal_xive_set_vp_info, OPAL_XIVE_SET_VP_INFO);
-OPAL_CALL(opal_xive_sync, OPAL_XIVE_SYNC);
-OPAL_CALL(opal_xive_dump, OPAL_XIVE_DUMP);
-OPAL_CALL(opal_signal_system_reset, OPAL_SIGNAL_SYSTEM_RESET);
-OPAL_CALL(opal_npu_init_context, OPAL_NPU_INIT_CONTEXT);
-OPAL_CALL(opal_npu_destroy_context, OPAL_NPU_DESTROY_CONTEXT);
-OPAL_CALL(opal_npu_map_lpar, OPAL_NPU_MAP_LPAR);
-OPAL_CALL(opal_imc_counters_init, OPAL_IMC_COUNTERS_INIT);
-OPAL_CALL(opal_imc_counters_start, OPAL_IMC_COUNTERS_START);
-OPAL_CALL(opal_imc_counters_stop, OPAL_IMC_COUNTERS_STOP);
-OPAL_CALL(opal_pci_set_p2p, OPAL_PCI_SET_P2P);
-OPAL_CALL(opal_get_powercap, OPAL_GET_POWERCAP);
-OPAL_CALL(opal_set_powercap, OPAL_SET_POWERCAP);
-OPAL_CALL(opal_get_power_shift_ratio, OPAL_GET_POWER_SHIFT_RATIO);
-OPAL_CALL(opal_set_power_shift_ratio, OPAL_SET_POWER_SHIFT_RATIO);
-OPAL_CALL(opal_sensor_group_clear, OPAL_SENSOR_GROUP_CLEAR);
-OPAL_CALL(opal_quiesce, OPAL_QUIESCE);
-OPAL_CALL(opal_npu_spa_setup, OPAL_NPU_SPA_SETUP);
-OPAL_CALL(opal_npu_spa_clear_cache, OPAL_NPU_SPA_CLEAR_CACHE);
-OPAL_CALL(opal_npu_tl_set, OPAL_NPU_TL_SET);
-OPAL_CALL(opal_pci_get_pbcq_tunnel_bar, OPAL_PCI_GET_PBCQ_TUNNEL_BAR);
-OPAL_CALL(opal_pci_set_pbcq_tunnel_bar, OPAL_PCI_SET_PBCQ_TUNNEL_BAR);
-OPAL_CALL(opal_sensor_read_u64, OPAL_SENSOR_READ_U64);
-OPAL_CALL(opal_sensor_group_enable, OPAL_SENSOR_GROUP_ENABLE);
-OPAL_CALL(opal_nx_coproc_init, OPAL_NX_COPROC_INIT);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-04 10:01:29 +0000