Tentative fix for NVIDIA 470.161.03 driver for Linux 6.2-rc1

nvidia-470xx-fix-linux-6.2.patch

From 5db7eb5a62003bbe04f3f07d089fcf5445b34a29 Mon Sep 17 00:00:00 2001
From: Joan Bruguera <[email protected]>
Date: Sun, 25 Dec 2022 22:05:14 +0000
Subject: [PATCH] Tentative fix for NVIDIA 470.161.03 driver for Linux 6.2-rc1

---
 nvidia-drm/nvidia-drm-connector.c | 22 ++++++++++++++++++++++
 nvidia-drm/nvidia-drm-drv.c       |  4 ++++
 nvidia/nv-acpi.c                  | 19 ++++++++++++++++---
 3 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/nvidia-drm/nvidia-drm-connector.c b/nvidia-drm/nvidia-drm-connector.c
index 6fbcd63..a5ab9e9 100644
--- a/nvidia-drm/nvidia-drm-connector.c
+++ b/nvidia-drm/nvidia-drm-connector.c
@@ -20,6 +20,8 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/version.h>
+#include <drm/drm_edid.h>
 #include "nvidia-drm-conftest.h" /* NV_DRM_ATOMIC_MODESET_AVAILABLE */
 
 #if defined(NV_DRM_ATOMIC_MODESET_AVAILABLE)
@@ -98,6 +100,7 @@ __nv_drm_detect_encoder(struct NvKmsKapiDynamicDisplayParams *pDetectParams,
             break;
     }
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 2, 0)
     if (connector->override_edid) {
         const struct drm_property_blob *edid = connector->edid_blob_ptr;
 
@@ -110,6 +113,25 @@ __nv_drm_detect_encoder(struct NvKmsKapiDynamicDisplayParams *pDetectParams,
                     sizeof(pDetectParams->edid.buffer));
         }
     }
+#else
+    // Rel. commit "drm/edid: detach debugfs EDID override from EDID property update" (Jani Nikula, 24 Oct 2022)
+    // NOTE: HUGE HACK!
+    mutex_lock(&connector->edid_override_mutex);
+    if (connector->edid_override) {
+        const struct edid *edid = drm_edid_raw(connector->edid_override);
+        size_t edid_length = EDID_LENGTH * (edid->extensions + 1);
+        if (edid_length <= sizeof(pDetectParams->edid.buffer)) {
+            memcpy(pDetectParams->edid.buffer, edid, edid_length);
+            pDetectParams->edid.bufferSize = edid_length;
+            pDetectParams->overrideEdid = NV_TRUE;
+        } else {
+            WARN_ON(edid_length >
+                    sizeof(pDetectParams->edid.buffer));
+        }
+    }
+    mutex_unlock(&connector->edid_override_mutex);
+
+#endif
 
     if (!nvKms->getDynamicDisplayInfo(nv_dev->pDevice, pDetectParams)) {
         NV_DRM_DEV_LOG_ERR(
diff --git a/nvidia-drm/nvidia-drm-drv.c b/nvidia-drm/nvidia-drm-drv.c
index 6d007b1..d08ab4c 100644
--- a/nvidia-drm/nvidia-drm-drv.c
+++ b/nvidia-drm/nvidia-drm-drv.c
@@ -20,6 +20,7 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/version.h>
 #include "nvidia-drm-conftest.h" /* NV_DRM_AVAILABLE and NV_DRM_DRM_GEM_H_PRESENT */
 
 #include "nvidia-drm-priv.h"
@@ -240,9 +241,12 @@ nv_drm_init_mode_config(struct nv_drm_device *nv_dev,
     dev->mode_config.preferred_depth = 24;
     dev->mode_config.prefer_shadow = 1;
 
+// Rel. commit "drm: Remove drm_mode_config::fb_base" (Zack Rusin, 18 Oct 2022)
+#if defined(CONFIG_FB) && LINUX_VERSION_CODE < KERNEL_VERSION(6, 2, 0)
     /* Currently unused. Update when needed. */
 
     dev->mode_config.fb_base = 0;
+#endif
 
 #if defined(NV_DRM_CRTC_STATE_HAS_ASYNC_FLIP) || \
     defined(NV_DRM_CRTC_STATE_HAS_PAGEFLIP_FLAGS)
diff --git a/nvidia/nv-acpi.c b/nvidia/nv-acpi.c
index 07501eb..1fdf71c 100644
--- a/nvidia/nv-acpi.c
+++ b/nvidia/nv-acpi.c
@@ -8,6 +8,7 @@
  * _NVRM_COPYRIGHT_END_
  */
 
+#include <linux/version.h>
 #define  __NO_VERSION__
 
 #include "os-interface.h"
@@ -24,7 +25,10 @@ static NV_STATUS   nv_acpi_extract_object  (const union acpi_object *, void *, N
 
 static int         nv_acpi_add             (struct acpi_device *);
 
-#if !defined(NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT) || (NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT == 2)
+// Rel. commit "ACPI: make remove callback of ACPI driver void" (Dawei Li, 14 Nov 2022)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 2, 0))
+static void        nv_acpi_remove_one_arg_void(struct acpi_device *device);
+#elif !defined(NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT) || (NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT == 2)
 static int         nv_acpi_remove_two_args(struct acpi_device *device, int type);
 #else
 static int         nv_acpi_remove_one_arg(struct acpi_device *device);
@@ -80,7 +84,10 @@ static const struct acpi_driver nv_acpi_driver_template = {
     .ids = nv_video_device_ids,
     .ops = {
         .add = nv_acpi_add,
-#if !defined(NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT) || (NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT == 2)
+// Rel. commit "ACPI: make remove callback of ACPI driver void" (Dawei Li, 14 Nov 2022)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 2, 0))
+        .remove = nv_acpi_remove_one_arg_void,
+#elif !defined(NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT) || (NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT == 2)
         .remove = nv_acpi_remove_two_args,
 #else
         .remove = nv_acpi_remove_one_arg,
@@ -342,7 +349,10 @@ static int nv_acpi_add(struct acpi_device *device)
     return 0;
 }
 
-#if !defined(NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT) || (NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT == 2)
+// Rel. commit "ACPI: make remove callback of ACPI driver void" (Dawei Li, 14 Nov 2022)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 2, 0))
+static void nv_acpi_remove_one_arg_void(struct acpi_device *device)
+#elif !defined(NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT) || (NV_ACPI_DEVICE_OPS_REMOVE_ARGUMENT_COUNT == 2)
 static int nv_acpi_remove_two_args(struct acpi_device *device, int type)
 #else
 static int nv_acpi_remove_one_arg(struct acpi_device *device)
@@ -396,7 +406,10 @@ static int nv_acpi_remove_one_arg(struct acpi_device *device)
         device->driver_data = NULL;
     }
 
+// Rel. commit "ACPI: make remove callback of ACPI driver void" (Dawei Li, 14 Nov 2022)
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 2, 0))
     return status;
+#endif
 }
 
 /*
-- 
2.39.0

@joanbm: you're right. I compiled kernel 6.1.2 with gcc 12.1.1; nvidia module nvidia-470.161.03 compiled fine. Seems the culprit is clang.
Thank you for the suggestion

Regards
Pascal

Thanks Joan Bruguera.
Now my video card work in kernel 6.2.
Have an nice week.