nvidia470: add patches for newer kernels

srcpkgs/nvidia470/patches/disable-objtool-override.patch

@@ -0,0 +1,41 @@
+From 77af76b80b3dea6df69af616d45e4c6a1d26bf4c Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <joanbrugueram@gmail.com>
+Date: Mon, 16 Feb 2026 01:07:18 +0000
+Subject: [PATCH] Disable final processing of .o files with binary blobs
+
+Due to the fact that the driver is unmaintained, and can't be adapted
+to the current Linux kernel security standards (e.g. IBT), as it has a
+proprietary blob; as this is likely to be an ever-growing security risk:
+Use at your own risk; no warranty of any kind is provided.
+---
+ Kbuild | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/kernel/Kbuild b/kernel/Kbuild
+index f333e0b..9381ab1 100644
+--- a/kernel/Kbuild
++++ b/kernel/Kbuild
+@@ -55,6 +55,20 @@ ifeq ($(NV_UNDEF_BEHAVIOR_SANITIZER),1)
+  UBSAN_SANITIZE := y
+ endif
+
++# This is an *ugly* hack to disable objtool during the final processing of the
++# objects that embed the proprietary blobs. Objtool can't process them, as they
++# do not follow the requirements of current kernels, including support for
++# critical security features. In Ubuntu 26.04+, this causes a build error.
++# Disable it at your own risk. Note that the MIT license applies:
++# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
++# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
++# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
++# SOFTWARE.
++nvidia.o nvidia-modeset.o: override objtool-enabled =
++
+ $(foreach _module, $(NV_KERNEL_MODULES), \
+  $(eval include $(src)/$(_module)/$(_module).Kbuild))
+
+-- 
+2.53.0
+

srcpkgs/nvidia470/patches/enable-drm-modeset-by-default.patch

@@ -0,0 +1,27 @@
+From aa59e5d9b1ed0f8d4012d2773573c15008286a4d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <joanbrugueram@gmail.com>
+Date: Sun, 31 Aug 2025 14:09:49 +0000
+Subject: [PATCH] Enable nvidia-drm.modeset=1 by default
+
+---
+ nvidia-drm/nvidia-drm-linux.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/kernel/nvidia-drm/nvidia-drm-linux.c b/kernel/nvidia-drm/nvidia-drm-linux.c
+index 2319640..55de3e3 100644
+--- a/kernel/nvidia-drm/nvidia-drm-linux.c
++++ b/kernel/nvidia-drm/nvidia-drm-linux.c
+@@ -41,8 +41,8 @@
+
+ MODULE_PARM_DESC(
+     modeset,
+-    "Enable atomic kernel modesetting (1 = enable, 0 = disable (default))");
+-bool nv_drm_modeset_module_param = false;
++    "Enable atomic kernel modesetting (1 = enable (default), 0 = disable)");
++bool nv_drm_modeset_module_param = true;
+ module_param_named(modeset, nv_drm_modeset_module_param, bool, 0400);
+
+ void *nv_drm_calloc(size_t nmemb, size_t size)
+-- 
+2.51.0
+

srcpkgs/nvidia470/patches/nvidia-470xx-fix-gcc-15.patch

@@ -0,0 +1,32 @@
+From 3d51f7abf1c591dfd47d0070e2b6942ef91301af Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <joanbrugueram@gmail.com>
+Date: Sun, 1 Jun 2025 22:14:13 +0000
+Subject: [PATCH] Fix for NVIDIA 470.256.02 driver for GCC 15
+
+conftest.sh invokes GCC on its own, without going through the usual
+kernel Makefile that would add the proper CFLAGS (e.g. -std=gnu11).
+
+This means that it builds with the default of GCC, which in GCC 15
+has changed to -std=gnu23 which and has backwards incompatible changes
+that the kernel does not support. Force it to -std=gnu17 instead.
+---
+ conftest.sh | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/kernel/conftest.sh b/kernel/conftest.sh
+index 70c91e5..dc40d3a 100755
+--- a/kernel/conftest.sh
++++ b/kernel/conftest.sh
+@@ -205,6 +205,9 @@ build_cflags() {
+             CFLAGS="$CFLAGS -mfentry -DCC_USING_FENTRY"
+         fi
+     fi
++
++    # Specify the C standard, instead of defaulting to the compiler's
++    CFLAGS="$CFLAGS -std=gnu17"
+ }
+
+ CONFTEST_PREAMBLE="#include \"conftest/headers.h\"
+-- 
+2.49.0
+

srcpkgs/nvidia470/patches/nvidia-470xx-fix-linux-6.13.patch

@@ -0,0 +1,58 @@
+From 9f91b171f680648647580c163bbc9cc1641e3920 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <joanbrugueram@gmail.com>
+Date: Sat, 16 Nov 2024 22:45:21 +0000
+Subject: [PATCH] Tentative fix for NVIDIA 470.256.02 driver for Linux 6.13-rc1
+
+---
+ nvidia-modeset/nvidia-modeset.Kbuild | 8 +++++---
+ nvidia/nvidia.Kbuild                 | 8 +++++---
+ 2 files changed, 10 insertions(+), 6 deletions(-)
+
+diff --git a/kernel/nvidia-modeset/nvidia-modeset.Kbuild b/kernel/nvidia-modeset/nvidia-modeset.Kbuild
+index a7d84e0..d417c28 100644
+--- a/kernel/nvidia-modeset/nvidia-modeset.Kbuild
++++ b/kernel/nvidia-modeset/nvidia-modeset.Kbuild
+@@ -40,13 +40,15 @@ NV_KERNEL_MODULE_TARGETS += $(NVIDIA_MODESET_KO)
+ NVIDIA_MODESET_BINARY_OBJECT := $(src)/nvidia-modeset/nv-modeset-kernel.o_binary
+ NVIDIA_MODESET_BINARY_OBJECT_O := nvidia-modeset/nv-modeset-kernel.o
+
+-quiet_cmd_symlink = SYMLINK $@
+-cmd_symlink = ln -sf $< $@
++# Rel. commit 80f289101690 "kbuild: change working directory to external module directory with M=" (Masahiro Yamada, 10 Nov 2024)
++# Ensure `$<` is absolute, since the link target is resolved relative to its path, not from where `ln` is run from.
++quiet_cmd_symlinkabs = SYMLINK $@
++ cmd_symlinkabs = ln -sf $(abspath $<) $@
+
+ targets += $(NVIDIA_MODESET_BINARY_OBJECT_O)
+
+ $(obj)/$(NVIDIA_MODESET_BINARY_OBJECT_O): $(NVIDIA_MODESET_BINARY_OBJECT) FORCE
+-	$(call if_changed,symlink)
++	$(call if_changed,symlinkabs)
+
+ nvidia-modeset-y += $(NVIDIA_MODESET_BINARY_OBJECT_O)
+
+diff --git a/kernel/nvidia/nvidia.Kbuild b/kernel/nvidia/nvidia.Kbuild
+index 31a6f92..62689f6 100644
+--- a/kernel/nvidia/nvidia.Kbuild
++++ b/kernel/nvidia/nvidia.Kbuild
+@@ -40,13 +40,15 @@ NVIDIA_KO = nvidia/nvidia.ko
+ NVIDIA_BINARY_OBJECT := $(src)/nvidia/nv-kernel.o_binary
+ NVIDIA_BINARY_OBJECT_O := nvidia/nv-kernel.o
+
+-quiet_cmd_symlink = SYMLINK $@
+- cmd_symlink = ln -sf $< $@
++# Rel. commit 80f289101690 "kbuild: change working directory to external module directory with M=" (Masahiro Yamada, 10 Nov 2024)
++# Ensure `$<` is absolute, since the link target is resolved relative to its path, not from where `ln` is run from.
++quiet_cmd_symlinkabs = SYMLINK $@
++ cmd_symlinkabs = ln -sf $(abspath $<) $@
+
+ targets += $(NVIDIA_BINARY_OBJECT_O)
+
+ $(obj)/$(NVIDIA_BINARY_OBJECT_O): $(NVIDIA_BINARY_OBJECT) FORCE
+-	$(call if_changed,symlink)
++	$(call if_changed,symlinkabs)
+
+ nvidia-y += $(NVIDIA_BINARY_OBJECT_O)
+
+-- 
+2.47.0

srcpkgs/nvidia470/patches/nvidia-470xx-fix-linux-6.14.patch

@@ -0,0 +1,26 @@
+From bee3ff1153f7b42491d2a0552d6f9a66a307ec1a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <joanbrugueram@gmail.com>
+Date: Sun, 15 Dec 2024 17:56:03 +0000
+Subject: [PATCH] Tentative fix for NVIDIA 470.256.02 driver for Linux 6.14-rc1
+
+---
+ nvidia-drm/nvidia-drm-drv.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/kernel/nvidia-drm/nvidia-drm-drv.c b/kernel/nvidia-drm/nvidia-drm-drv.c
+index 0b1181d..b50b17a 100644
+--- a/kernel/nvidia-drm/nvidia-drm-drv.c
++++ b/kernel/nvidia-drm/nvidia-drm-drv.c
+@@ -882,7 +882,10 @@ static struct drm_driver nv_drm_driver = {
+     .name                   = "nvidia-drm",
+
+     .desc                   = "NVIDIA DRM driver",
++#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 14, 0)
++    // Rel. commit. "drm: remove driver date from struct drm_driver and all drivers" (Jani Nikula, 4 Dec 2024)
+     .date                   = "20160202",
++#endif
+
+ #if defined(NV_DRM_DRIVER_HAS_DEVICE_LIST)
+     .device_list            = LIST_HEAD_INIT(nv_drm_driver.device_list),
+-- 
+2.48.1