vgsp-diag: whole-vidmem page-hash bracket - sema_gl_vidmem_bracket hashes every 4KB page of the BAR1 shadow before the GR publish and diffs after the output-retirement wait, reporting any changed page outside the sampled output set; vidmem_hash_snap/vidmem_hash_diff manual module params; default 0 is a strict no-op

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/gsp_sema_service.h b/kernel/gsp_sema_service.h
index 1e0dac6..f63b9fa 100644
--- a/kernel/gsp_sema_service.h
+++ b/kernel/gsp_sema_service.h
@@ -149,6 +149,9 @@ int  gsp_sema_service_dump_vidmem(u64 addr, u64 len);
 int  gsp_sema_service_xw_mirror(u64 cnt_pa, u64 mem_pa);
 int  gsp_sema_service_xw_comp(u64 comp_pa);
 int  gsp_sema_service_find_vidmem(u64 pattern, u64 max_hits);
+int  gsp_sema_service_vidmem_hash_snapshot(void);
+int  gsp_sema_service_vidmem_hash_diff(const char *tag,
+				       unsigned int max_pages);
 int  gsp_sema_service_pdb_discover(u64 ring_va, u64 ring_pa);
 int  gsp_sema_service_chan_rewind(u32 h_object);
 int  gsp_sema_service_counter_add(u32 h_object, u64 pa);