Initial 5.12 (release) kernel patch for 455 series - Thanks to @openglfreak

PKGBUILD

@@ -48,7 +48,7 @@ if [ -z "$_driver_version" ] || [ "$_driver_version" = "latest" ] || [ -z "$_dri
     fi
   fi
   if [[ -z $CONDITION ]]; then
-    read -p "    What driver version do you want?`echo $'\n    > 1.Vulkan dev: 455.50.14 (kernel 5.11 or lower)\n      2.465 series: 465.24.02\n      3.460 series: 460.73.01\n      4.455 series: 455.45.01 (kernel 5.11 or lower)\n      5.450 series: 450.102.04 (kernel 5.11 or lower)\n      6.440 series: 440.100 (kernel 5.8 or lower)\n      7.435 series: 435.21  (kernel 5.6 or lower)\n      8.430 series: 430.64  (kernel 5.5 or lower)\n      9.418 series: 418.113 (kernel 5.5 or lower)\n      10.415 series: 415.27  (kernel 5.4 or lower)\n      11.410 series: 410.104 (kernel 5.5 or lower)\n      12.396 series: 396.54  (kernel 5.3 or lower, 5.1 or lower recommended)\n      13.Custom version (396.xx series or higher)\n    choice[1-13?]: '`" CONDITION;
+    read -p "    What driver version do you want?`echo $'\n    > 1.Vulkan dev: 455.50.14\n      2.465 series: 465.24.02\n      3.460 series: 460.73.01\n      4.455 series: 455.45.01\n      5.450 series: 450.102.04 (kernel 5.11 or lower)\n      6.440 series: 440.100 (kernel 5.8 or lower)\n      7.435 series: 435.21  (kernel 5.6 or lower)\n      8.430 series: 430.64  (kernel 5.5 or lower)\n      9.418 series: 418.113 (kernel 5.5 or lower)\n      10.415 series: 415.27  (kernel 5.4 or lower)\n      11.410 series: 410.104 (kernel 5.5 or lower)\n      12.396 series: 396.54  (kernel 5.3 or lower, 5.1 or lower recommended)\n      13.Custom version (396.xx series or higher)\n    choice[1-13?]: '`" CONDITION;
   fi
     # This will be treated as the latest regular driver.
     if [ "$CONDITION" = "2" ]; then
@@ -222,7 +222,7 @@ fi
 
 pkgname=("${_pkgname_array[@]}")
 pkgver=$_driver_version
-pkgrel=160
+pkgrel=161
 arch=('x86_64')
 url="http://www.nvidia.com/"
 license=('custom:NVIDIA')
@@ -275,6 +275,7 @@ source=($_source_name
         'kernel-5.11.patch' # 5.11 workaround
         '5.11-legacy.diff' # 5.11 additional workaround (<460.32.03)
         '455-crashfix.diff' # 455 drivers fix - https://forums.developer.nvidia.com/t/455-23-04-page-allocation-failure-in-kernel-module-at-random-points/155250/79
+        'kernel-5.12.patch' # 5.12 workaround
 )
 
 msg2 "Selected driver integrity check behavior (md5sum or SKIP): $_md5sum" # If the driver is "known", return md5sum. If it isn't, return SKIP
@@ -307,7 +308,8 @@ md5sums=("$_md5sum"
          'bcdd512edad1bad8331a8872259d2581'
          'fd0d6e14e675a61f32279558678cfc36'
          '8764cc714e61363cc8f818315957ad17'
-         '08bec554de265ce5fdcfdbd55fb608fc')
+         '08bec554de265ce5fdcfdbd55fb608fc'
+         '3980770412a1d4d7bd3a16c9042200df')
 
 if [ "$_autoaddpatch" = "true" ]; then
   # Auto-add *.patch files from $startdir to source=()
@@ -597,6 +599,12 @@ DEST_MODULE_LOCATION[3]="/kernel/drivers/video"' dkms.conf
       fi
     fi
 
+    # 5.12
+    if (( $(vercmp "$_kernel" "5.12") >= 0 )); then
+      _kernel512="1"
+      _whitelist512=( 455.4* 455.5* )
+    fi
+
     # Loop patches (linux-4.15.patch, lol.patch, ...)
     for _p in $(printf -- '%s\n' ${source[@]} | grep .patch); do  # https://stackoverflow.com/a/21058239/1821548
       # Patch version (4.15, "", ...)
@@ -647,6 +655,9 @@ DEST_MODULE_LOCATION[3]="/kernel/drivers/video"' dkms.conf
       if [ "$_patch" = "5.11" ]; then
         _whitelist=(${_whitelist511[@]})
       fi
+      if [ "$_patch" = "5.12" ]; then
+        _whitelist=(${_whitelist512[@]})
+      fi
 
       patchy=0
       if (( $(vercmp "$_kernel" "$_patch") >= 0 )); then
@@ -919,6 +930,20 @@ DEST_MODULE_LOCATION[3]="/kernel/drivers/video"' dkms.conf
       fi
     fi
 
+    # 5.12
+    if [ "$_kernel512" = "1" ]; then
+      patchy=0
+      for yup in "${_whitelist512[@]}"; do
+        [[ $pkgver = $yup ]] && patchy=1
+      done
+      if [ "$patchy" = "1" ]; then
+        msg2 "Applying kernel-5.12.patch for dkms..."
+        patch -Np1 -i "$srcdir"/kernel-5.12.patch
+      else
+        msg2 "Skipping kernel-5.12.patch as it doesn't apply to this driver version..."
+      fi
+    fi
+
     # Legacy quirks
     if [ "$_oldstuff" = "1" ]; then
       msg2 "Applying 01-ipmi-vm.diff for dkms..."

patches/kernel-5.12.patch

@@ -0,0 +1,30 @@
+diff --git a/kernel-dkms/nvidia-drm/nvidia-drm-drv.c b/kernel-dkms/nvidia-drm/nvidia-drm-drv.c
+index ef89513..7f0707d 100644
+--- a/kernel-dkms/nvidia-drm/nvidia-drm-drv.c
++++ b/kernel-dkms/nvidia-drm/nvidia-drm-drv.c
+@@ -855,7 +855,9 @@ static void nv_drm_update_drm_driver_features(void)
+ 
+     nv_drm_driver.dumb_create      = nv_drm_dumb_create;
+     nv_drm_driver.dumb_map_offset  = nv_drm_dumb_map_offset;
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 12, 0))
+     nv_drm_driver.dumb_destroy     = drm_gem_dumb_destroy;
++#endif
+ #endif /* NV_DRM_ATOMIC_MODESET_AVAILABLE */
+ }
+ 
+diff --git a/kernel-dkms/nvidia-drm/nvidia-drm-gem-user-memory.c b/kernel-dkms/nvidia-drm/nvidia-drm-gem-user-memory.c
+index 89ab321..f29b644 100644
+--- a/kernel-dkms/nvidia-drm/nvidia-drm-gem-user-memory.c
++++ b/kernel-dkms/nvidia-drm/nvidia-drm-gem-user-memory.c
+@@ -208,7 +208,11 @@ struct nv_drm_gem_user_memory *nv_drm_gem_user_memory_import_sg_table(
+         return NULL;
+     }
+ 
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 12, 0))
+     if (drm_prime_sg_to_page_addr_arrays(sgt, pages, NULL, pages_count) < 0) {
++#else
++    if (drm_prime_sg_to_page_array(sgt, pages, pages_count) < 0) {
++#endif
+         nv_drm_free(nv_user_memory);
+         nv_drm_free(pages);
+         return NULL;