Attachment 108440 Details for Bug 85471 – Disassembly of nouveau_pmops_runtime_suspend

Disassembly of nouveau_pmops_runtime_suspend

disassembly_nouveau_pmops_runtime_suspend.txt (text/plain), 5.76 KB, created by Christian Vogel on 2014-10-26 09:53:52 UTC

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Creator: Christian Vogel

Created: 2014-10-26 09:53:52 UTC

Size: 5.76 KB

patch

obsolete

>static int nouveau_pmops_runtime_suspend(struct device *dev)
>{
>	struct pci_dev *pdev = to_pci_dev(dev);
>	struct drm_device *drm_dev = pci_get_drvdata(pdev);
>	int ret;
>
>	if (nouveau_runtime_pm == 0) {
>		pm_runtime_forbid(dev);
>		return -EBUSY;
>	}
>
>	/* are we optimus enabled? */
>	if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
>		DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
>		pm_runtime_forbid(dev);
>		return -EBUSY;
>	}
>
>	nv_debug_level(SILENT);
>	drm_kms_helper_poll_disable(drm_dev);
>	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
>	nouveau_switcheroo_optimus_dsm();
>	ret = nouveau_do_suspend(drm_dev, true);
>	pci_save_state(pdev);
>	pci_disable_device(pdev);
>	pci_set_power_state(pdev, PCI_D3cold);
>	drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
>	return ret;
>}
>
>0000000000000855 <nouveau_pmops_runtime_suspend>:
>     855:       e8 00 00 00 00          callq  85a <nouveau_pci_name+0x85a>
>                        856: R_X86_64_PC32      __fentry__-0x4
>     85a:       55                      push   %rbp
>     85b:       48 89 e5                mov    %rsp,%rbp
>     85e:       41 55                   push   %r13
>     860:       41 54                   push   %r12
>     862:       4c 8d a7 68 ff ff ff    lea    -0x98(%rdi),%r12
>     869:       53                      push   %rbx
>     86a:       48 89 fb                mov    %rdi,%rbx
>     86d:       51                      push   %rcx
>     86e:       8b 05 00 00 00 00       mov    0x0(%rip),%eax        # 874 <nouveau_pci_name+0x874>
>                        870: R_X86_64_PC32      nouveau_runtime_pm-0x4
>     874:       4c 8b af a0 00 00 00    mov    0xa0(%rdi),%r13
>     87b:       85 c0                   test   %eax,%eax
>     87d:       75 12                   jne    891 <nouveau_pci_name+0x891>
> +-> 87f:       48 89 df                mov    %rbx,%rdi
> |
>###############
>###############
> |   882:       e8 00 00 00 00          callq  887 <nouveau_pci_name+0x887>
> |                      883: R_X86_64_PC32      pm_runtime_forbid-0x4
>###############
>###############
> |   887:       b8 f0 ff ff ff          mov    $0xfffffff0,%eax
> |   88c:       e9 8e 00 00 00          jmpq   91f <nouveau_pci_name+0x91f>
> ^   891:       ff c0                   inc    %eax
> |   893:       75 30                   jne    8c5 <nouveau_pci_name+0x8c5>
> |   895:       e8 00 00 00 00          callq  89a <nouveau_pci_name+0x89a>
>                        896: R_X86_64_PC32      nouveau_is_optimus-0x4
>     89a:       84 c0                   test   %al,%al
>     89c:       75 27                   jne    8c5 <nouveau_pci_name+0x8c5>
>     89e:       e8 00 00 00 00          callq  8a3 <nouveau_pci_name+0x8a3>
>                        89f: R_X86_64_PC32      nouveau_is_v1_dsm-0x4
>     8a3:       84 c0                   test   %al,%al
>     8a5:       75 1e                   jne    8c5 <nouveau_pci_name+0x8c5>
>     8a7:       f6 05 00 00 00 00 02    testb  $0x2,0x0(%rip)        # 8ae <nouveau_pci_name+0x8ae>
>                        8a9: R_X86_64_PC32      drm_debug-0x5
>     8ae:       74 cf                   je     87f <nouveau_pci_name+0x87f>
>     8b0:       48 c7 c6 00 00 00 00    mov    $0x0,%rsi
> ^                      8b3: R_X86_64_32S       .rodata.str1.1+0x135
> |   8b7:       48 c7 c7 00 00 00 00    mov    $0x0,%rdi
> |                      8ba: R_X86_64_32S       .rodata+0x20
> |   8be:       e8 00 00 00 00          callq  8c3 <nouveau_pci_name+0x8c3>
> |                      8bf: R_X86_64_PC32      drm_ut_debug_printk-0x4
> ^-  8c3:       eb ba                   jmp    87f <nouveau_pci_name+0x87f>
>     8c5:       c7 05 00 00 00 00 04    movl   $0x4,0x0(%rip)        # 8cf <nouveau_pci_name+0x8cf>
>     8cc:       00 00 00
>                        8c7: R_X86_64_PC32      nv_info_debug_level-0x8
>     8cf:       4c 89 ef                mov    %r13,%rdi
>     8d2:       e8 00 00 00 00          callq  8d7 <nouveau_pci_name+0x8d7>
>                        8d3: R_X86_64_PC32      drm_kms_helper_poll_disable-0x4
>     8d7:       31 f6                   xor    %esi,%esi
>     8d9:       4c 89 e7                mov    %r12,%rdi
>     8dc:       e8 00 00 00 00          callq  8e1 <nouveau_pci_name+0x8e1>
>                        8dd: R_X86_64_PC32      vga_switcheroo_set_dynamic_switch-0x4
>     8e1:       e8 00 00 00 00          callq  8e6 <nouveau_pci_name+0x8e6>
>                        8e2: R_X86_64_PC32      nouveau_switcheroo_optimus_dsm-0x4
>     8e6:       be 01 00 00 00          mov    $0x1,%esi
>     8eb:       4c 89 ef                mov    %r13,%rdi
>     8ee:       e8 f4 f7 ff ff          callq  e7 <nouveau_pci_name+0xe7>
>     8f3:       4c 89 e7                mov    %r12,%rdi
>     8f6:       89 c3                   mov    %eax,%ebx
>     8f6:       89 c3                   mov    %eax,%ebx
>     8f8:       e8 00 00 00 00          callq  8fd <nouveau_pci_name+0x8fd>
>                        8f9: R_X86_64_PC32      pci_save_state-0x4
>     8fd:       4c 89 e7                mov    %r12,%rdi
>     900:       e8 00 00 00 00          callq  905 <nouveau_pci_name+0x905>
>                        901: R_X86_64_PC32      pci_disable_device-0x4
>     905:       be 04 00 00 00          mov    $0x4,%esi
>     90a:       4c 89 e7                mov    %r12,%rdi
>     90d:       e8 00 00 00 00          callq  912 <nouveau_pci_name+0x912>
>                        90e: R_X86_64_PC32      pci_set_power_state-0x4
>     912:       89 d8                   mov    %ebx,%eax
>     914:       41 c7 85 60 05 00 00    movl   $0x3,0x560(%r13)
>     91b:       03 00 00 00
>     91f:       5a                      pop    %rdx
>     920:       5b                      pop    %rbx
>     921:       41 5c                   pop    %r12
>     923:       41 5d                   pop    %r13
>     925:       5d                      pop    %rbp
>     926:       c3                      retq

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Attachments on bug 85471: 108436 | 108439 | 108440

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