diff options
Diffstat (limited to 'kernel/gsp_phys_booter.c')
| -rw-r--r-- | kernel/gsp_phys_booter.c | 69 |
1 files changed, 68 insertions, 1 deletions
diff --git a/kernel/gsp_phys_booter.c b/kernel/gsp_phys_booter.c index 5a5287f..8bf94d8 100644 --- a/kernel/gsp_phys_booter.c +++ b/kernel/gsp_phys_booter.c @@ -12707,6 +12707,46 @@ static int gsp_phys_rmcall_user_lane_notifier(void __iomem *bar0) u64 base = 0; int ret; + /* + * m83: host-visible sysmem error notifier (gsp_phys_rmcall_gr_notifier_sys; + * default 0). The RM writes asynchronous channel error records into the + * context's error notifier; with the FBMEM aperture nothing can read them + * (the m66..m82 GPC exception has never been decodable). A sysmem chunk + * registered as the hObjectError memory object makes the RM's own fault + * record readable from the host. + */ + if (gsp_phys_rmcall_gr_notifier_sys_value()) { + struct gsp_phys_boot_chunk *n = + &boot_stage.rmcall_user_lane_notifier; + + if (!boot_stage.pdev) { + pr_err("vgsp-boot: rm-call: mode 35 sysmem error-notifier: no claimed pci_dev\n"); + return -EINVAL; + } + if (!n->pages) { + ret = gsp_phys_chunk_alloc(boot_stage.pdev, n, + GSP_PHYS_RMCALL_NOTIFIER_SIZE / + GSP_PHYS_PAGE_SIZE); + if (ret) { + pr_err("vgsp-boot: rm-call: mode 35 sysmem error-notifier chunk allocation failed (%d)\n", + ret); + return ret; + } + gsp_phys_chunk_zero(n); + } + ret = gsp_phys_rmcall_register_chunk(bar0, n, + GSP_PHYS_RMCALL_HANDLE_USER_LANE_NOTIFIER, + "mode 35 user-lane error notifier (sysmem m83)"); + if (ret) + return ret; + base = (u64)gsp_phys_chunk_page_dma(n, 0); + boot_stage.rmcall_user_lane_notifier_pa = base; + pr_info("vgsp-boot: rm-call: mode 35 user-lane error notifier: hObject=0x%x SYSMEM pa=0x%llx size=0x%x (host-readable RM fault records; m83)\n", + GSP_PHYS_RMCALL_HANDLE_USER_LANE_NOTIFIER, base, + GSP_PHYS_RMCALL_NOTIFIER_SIZE); + return 0; + } + ret = gsp_phys_rmcall_alloc_fb_mem(bar0, GSP_PHYS_RMCALL_HANDLE_USER_LANE_NOTIFIER, GSP_PHYS_RMCALL_NOTIFIER_SIZE, &base, @@ -12869,7 +12909,9 @@ static int gsp_phys_rmcall_alloc_user_lane_channel(void __iomem *bar0) ch.error_notifier_mem.size = cpu_to_le64(GSP_PHYS_RMCALL_NOTIFIER_SIZE); ch.error_notifier_mem.address_space = - cpu_to_le32(GSP_PHYS_RMCALL_ADDR_FBMEM); + cpu_to_le32(gsp_phys_rmcall_gr_notifier_sys_value() ? + GSP_PHYS_RMCALL_ADDR_SYSMEM : + GSP_PHYS_RMCALL_ADDR_FBMEM); ch.error_notifier_mem.cache_attrib = cpu_to_le32(GSP_PHYS_RMCALL_CACHE_UNCACHED); @@ -16660,6 +16702,31 @@ gr_page_unmapped: p1[0], p1[1], p1[2], p1[3], p1[4], p1[5], p1[6], p1[7]); } + /* + * m83: the RM's asynchronous channel-error reports + * land in the error notifier; with the sysmem + * aperture they are host-readable after a failure. + */ + if (gsp_phys_rmcall_gr_notifier_sys_value()) { + struct gsp_phys_boot_chunk *nt = + &boot_stage.rmcall_user_lane_notifier; + const u32 *np = nt->pages ? + gsp_phys_chunk_page_va(nt, 0) : NULL; + u32 i; + + if (np) { + for (i = 0; i < 32; i += 8) + pr_info("vgsp-gr: post-mortem notifier w%u..%u = %08x %08x %08x %08x %08x %08x %08x %08x\n", + i, i + 7, + np[i], np[i + 1], + np[i + 2], + np[i + 3], + np[i + 4], + np[i + 5], + np[i + 6], + np[i + 7]); + } + } { u8 *qp2 = qmd_dst_mem ? qmd_dst_mem : (req->qmd_hpa ? |