diff options
Diffstat (limited to 'kernel/gsp_phys_booter.c')
| -rw-r--r-- | kernel/gsp_phys_booter.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/kernel/gsp_phys_booter.c b/kernel/gsp_phys_booter.c index 94d5f5f..9b1294a 100644 --- a/kernel/gsp_phys_booter.c +++ b/kernel/gsp_phys_booter.c @@ -18092,6 +18092,20 @@ MODULE_PARM_DESC(sema_gl_sdm_drop, "Drop single-word SDM-type entries (SEC_OP 0/2/6) from 3D window replays, the MME prelude and the attr prelude (default 1)"); /* + * Whole-vidmem page-hash bracket for the forwarded GR launch path. When set, + * hash every 4 KB page of the first open device's BAR1 shadow immediately + * before the publish, then re-hash once the output retirement wait returns + * and log the pages whose content changed. This proves whether the engine + * wrote any vidmem page, not just the output pages the copy-out samples. + * Default 0: no allocation, no hashing and no change to the submit path. + */ +static bool gsp_phys_gr_vidmem_bracket; +module_param_named(sema_gl_vidmem_bracket, gsp_phys_gr_vidmem_bracket, bool, + 0644); +MODULE_PARM_DESC(sema_gl_vidmem_bracket, + "Hash every vidmem page before and after a forwarded GR launch to report writes outside the sampled output pages (default 0)"); + +/* * SESSION 153-CONTINUED-53: MME context-setup prelude. The r1073-r1077 * in-flight capture proved the draw-window replay raises a real MME * ILLEGAL_OPCODE on CALL_MME_MACRO(2)=0x3810 (mme_pc=0, mme_ir=1, mme_mac @@ -28941,6 +28955,14 @@ gr_page_unmapped: */ gsp_phys_gr_wit_capture(req); + if (gsp_phys_gr_vidmem_bracket) { + int hret = gsp_sema_service_vidmem_hash_snapshot(); + + if (hret) + pr_warn_ratelimited("vgsp-gr: VIDMEM-BRACKET snapshot failed rc=%d\n", + hret); + } + ret = gsp_phys_rmcall_publish_locked(bar0, boot_stage.rmcall_va_pb, words, &sub); mutex_unlock(&gsp_phys_rm_lock); @@ -30146,6 +30168,9 @@ gr_page_unmapped: u32 wrote = gsp_phys_gr_output_retire_wait(req, bounce_csum_in, &n_tracked); + if (gsp_phys_gr_vidmem_bracket) + gsp_sema_service_vidmem_hash_diff("launch", 64); + /* CONT-73: where did the draw write? bounce count above; * direct guest stores (relocated alias/shadow operands and * MME shadow-scratch destinations) here. */ |