The patch below does not apply to the 6.2-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.2.y git checkout FETCH_HEAD git cherry-pick -x b7cdb41e7d25ceb4f8c1de7343517b29b58e357b # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '167844816138234@kroah.com' --subject-prefix 'PATCH 6.2.y' HEAD^..

Possible dependencies:

b7cdb41e7d25 ("drm/amd: Delay removal of the firmware framebuffer")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From b7cdb41e7d25ceb4f8c1de7343517b29b58e357b Mon Sep 17 00:00:00 2001 From: Mario Limonciello mario.limonciello@amd.com Date: Tue, 27 Dec 2022 15:49:17 -0600 Subject: [PATCH] drm/amd: Delay removal of the firmware framebuffer

Removing the firmware framebuffer from the driver means that even if the driver doesn't support the IP blocks in a GPU it will no longer be functional after the driver fails to initialize.

This change will ensure that unsupported IP blocks at least cause the driver to work with the EFI framebuffer.

Cc: stable@vger.kernel.org Suggested-by: Alex Deucher alexander.deucher@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Reviewed-by: Lijo Lazar lijo.lazar@amd.com Signed-off-by: Mario Limonciello mario.limonciello@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 585e73f2839e..e6d7e0878c79 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -36,6 +36,7 @@ #include <generated/utsrelease.h> #include <linux/pci-p2pdma.h>

+#include <drm/drm_aperture.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_fb_helper.h> #include <drm/drm_probe_helper.h> @@ -90,6 +91,8 @@ MODULE_FIRMWARE("amdgpu/navi12_gpu_info.bin"); #define AMDGPU_MAX_RETRY_LIMIT 2 #define AMDGPU_RETRY_SRIOV_RESET(r) ((r) == -EBUSY || (r) == -ETIMEDOUT || (r) == -EINVAL)

+static const struct drm_driver amdgpu_kms_driver; + const char *amdgpu_asic_name[] = { "TAHITI", "PITCAIRN", @@ -3688,6 +3691,11 @@ int amdgpu_device_init(struct amdgpu_device *adev, if (r) return r;

+ /* Get rid of things like offb */ + r = drm_aperture_remove_conflicting_pci_framebuffers(adev->pdev, &amdgpu_kms_driver); + if (r) + return r; + /* Enable TMZ based on IP_VERSION */ amdgpu_gmc_tmz_set(adev);

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 3112af2c7afd..82b9f85f922b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -23,7 +23,6 @@ */

#include <drm/amdgpu_drm.h> -#include <drm/drm_aperture.h> #include <drm/drm_drv.h> #include <drm/drm_fbdev_generic.h> #include <drm/drm_gem.h> @@ -2124,11 +2123,6 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, } #endif

- /* Get rid of things like offb */ - ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &amdgpu_kms_driver); - if (ret) - return ret; - adev = devm_drm_dev_alloc(&pdev->dev, &amdgpu_kms_driver, typeof(*adev), ddev); if (IS_ERR(adev)) return PTR_ERR(adev);