Hi Am 18.01.21 um 15:56 schrieb Daniel Vetter:
On Mon, Jan 18, 2021 at 3:40 PM Thomas Zimmermann <tzimmerm...@suse.de> wrote:Hi Am 18.01.21 um 14:50 schrieb Christian König:Hi Thomas, this patch unfortunately completely broke amdgpu. See the splat below: [ 74.553881] ================================================================== [ 74.554060] BUG: KASAN: null-ptr-deref in drm_pci_set_busid+0x38/0x100 [drm] [ 74.554393] Read of size 4 at addr 0000000000000038 by task Xorg/1115 [ 74.554585] CPU: 6 PID: 1115 Comm: Xorg Not tainted 5.11.0-rc2+ #75 [ 74.554594] Hardware name: System manufacturer System Product Name/PRIME X399-A, BIOS 0808 10/12/2018 [ 74.554600] Call Trace: [ 74.554605] dump_stack+0x9d/0xce [ 74.554616] ? drm_pci_set_busid+0x38/0x100 [drm] [ 74.554787] kasan_report.cold+0x5d/0xd1 [ 74.554799] ? drm_pci_set_busid+0x38/0x100 [drm] [ 74.554969] __asan_load4+0x6b/0x90 [ 74.554978] drm_pci_set_busid+0x38/0x100 [drm] [ 74.555148] drm_setversion+0x2ce/0x350 [drm] [ 74.555315] ? drm_is_current_master+0x5d/0x70 [drm] [ 74.555481] drm_ioctl_kernel+0x16d/0x1c0 [drm] [ 74.555648] ? drm_ioctl_permit+0xb0/0xb0 [drm] [ 74.555811] ? drm_setversion+0x350/0x350 [drm] [ 74.555973] ? check_stack_object+0x2d/0xb0 [ 74.555985] drm_ioctl+0x363/0x5a0 [drm] [ 74.556147] ? drm_ioctl_permit+0xb0/0xb0 [drm] [ 74.556310] ? drm_ioctl_kernel+0x1c0/0x1c0 [drm] [ 74.556473] ? __kasan_check_write+0x14/0x20 [ 74.556481] ? _raw_spin_lock_irqsave+0x8e/0xf0 [ 74.556492] ? _raw_spin_trylock_bh+0x100/0x100 [ 74.556504] amdgpu_drm_ioctl+0x7e/0xd0 [amdgpu] [ 74.557409] __x64_sys_ioctl+0xc3/0x100 [ 74.557418] do_syscall_64+0x38/0x90 [ 74.557427] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Any idea what's going wrong here?I meanwhile posted an updated patchset with a fix in patch 1. [1] Maybe you can apply this one and test. The original bug report and testing is at [2]. Apparently, DRM core has to be changed together with drivers. I'm honestly not sure why.Same thing Chris pointed out on the i915 patch: If drivers stop setting drm->pdev, but core still uses it, we have booms. So that patch 1 needs to land asap I think.
Yep. But somehow my impression was that the DRM core also sets pdev internally in drm_get_pci_dev(). But looking at it now, that code is only used by legacy drivers. :/
Best regards Thomas
-DanielBest regards Thomas [1] https://lore.kernel.org/dri-devel/20210118131420.15874-1-tzimmerm...@suse.de/T/#m8a0cdf02375a4e23e194d2e7eb80e8738632ea84 [2] https://lore.kernel.org/dri-devel/7851c78c-8c57-3c84-cd49-a72703095...@suse.de/Thanks in advance, Christian. Am 07.01.21 um 09:07 schrieb Thomas Zimmermann:Using struct drm_device.pdev is deprecated. Convert amdgpu to struct drm_device.dev. No functional changes. v3: * rebased Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de> Acked-by: Christian König <christian.koe...@amd.com> Acked-by: Alex Deucher <alexander.deuc...@amd.com> Acked-by: Sam Ravnborg <s...@ravnborg.org> Cc: Alex Deucher <alexander.deuc...@amd.com> Cc: Christian König <christian.koe...@amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 17 ++++++++--------- drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 1 - drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 10 +++++----- drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 10 +++++----- 7 files changed, 21 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 7d16395ede0a..f7e2a878411e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1423,9 +1423,9 @@ static void amdgpu_switcheroo_set_state(struct pci_dev *pdev, /* don't suspend or resume card normally */ dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; - pci_set_power_state(dev->pdev, PCI_D0); - amdgpu_device_load_pci_state(dev->pdev); - r = pci_enable_device(dev->pdev); + pci_set_power_state(pdev, PCI_D0); + amdgpu_device_load_pci_state(pdev); + r = pci_enable_device(pdev); if (r) DRM_WARN("pci_enable_device failed (%d)\n", r); amdgpu_device_resume(dev, true); @@ -1437,10 +1437,10 @@ static void amdgpu_switcheroo_set_state(struct pci_dev *pdev, drm_kms_helper_poll_disable(dev); dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; amdgpu_device_suspend(dev, true); - amdgpu_device_cache_pci_state(dev->pdev); + amdgpu_device_cache_pci_state(pdev); /* Shut down the device */ - pci_disable_device(dev->pdev); - pci_set_power_state(dev->pdev, PCI_D3cold); + pci_disable_device(pdev); + pci_set_power_state(pdev, PCI_D3cold); dev->switch_power_state = DRM_SWITCH_POWER_OFF; } } @@ -1703,8 +1703,7 @@ static void amdgpu_device_enable_virtual_display(struct amdgpu_device *adev) adev->enable_virtual_display = false; if (amdgpu_virtual_display) { - struct drm_device *ddev = adev_to_drm(adev); - const char *pci_address_name = pci_name(ddev->pdev); + const char *pci_address_name = pci_name(adev->pdev); char *pciaddstr, *pciaddstr_tmp, *pciaddname_tmp, *pciaddname; pciaddstr = kstrdup(amdgpu_virtual_display, GFP_KERNEL); @@ -3397,7 +3396,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, } } - pci_enable_pcie_error_reporting(adev->ddev.pdev); + pci_enable_pcie_error_reporting(adev->pdev); /* Post card if necessary */ if (amdgpu_device_need_post(adev)) { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index f764803c53a4..0150a51b65ef 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -926,6 +926,7 @@ amdgpu_display_user_framebuffer_create(struct drm_device *dev, struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd) { + struct amdgpu_device *adev = drm_to_adev(dev); struct drm_gem_object *obj; struct amdgpu_framebuffer *amdgpu_fb; int ret; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 72efd579ec5e..b4ea67e12ada 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -1204,7 +1204,6 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, if (ret) return ret; - ddev->pdev = pdev; pci_set_drvdata(pdev, ddev); ret = amdgpu_driver_load_kms(adev, ent->driver_data); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index 0bf7d36c6686..51cd49c6f38f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -271,7 +271,7 @@ static int amdgpufb_create(struct drm_fb_helper *helper, DRM_INFO("fb depth is %d\n", fb->format->depth); DRM_INFO(" pitch is %d\n", fb->pitches[0]); - vga_switcheroo_client_fb_set(adev_to_drm(adev)->pdev, info); + vga_switcheroo_client_fb_set(adev->pdev, info); return 0; out: diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index d0a1fee1f5f6..a5c42c3004a0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -619,7 +619,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, int r = 0; if (args->va_address < AMDGPU_VA_RESERVED_SIZE) { - dev_dbg(&dev->pdev->dev, + dev_dbg(dev->dev, "va_address 0x%LX is in reserved area 0x%LX\n", args->va_address, AMDGPU_VA_RESERVED_SIZE); return -EINVAL; @@ -627,7 +627,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, if (args->va_address >= AMDGPU_GMC_HOLE_START && args->va_address < AMDGPU_GMC_HOLE_END) { - dev_dbg(&dev->pdev->dev, + dev_dbg(dev->dev, "va_address 0x%LX is in VA hole 0x%LX-0x%LX\n", args->va_address, AMDGPU_GMC_HOLE_START, AMDGPU_GMC_HOLE_END); @@ -639,14 +639,14 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE; vm_size -= AMDGPU_VA_RESERVED_SIZE; if (args->va_address + args->map_size > vm_size) { - dev_dbg(&dev->pdev->dev, + dev_dbg(dev->dev, "va_address 0x%llx is in top reserved area 0x%llx\n", args->va_address + args->map_size, vm_size); return -EINVAL; } if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) { - dev_dbg(&dev->pdev->dev, "invalid flags combination 0x%08X\n", + dev_dbg(dev->dev, "invalid flags combination 0x%08X\n", args->flags); return -EINVAL; } @@ -658,7 +658,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, case AMDGPU_VA_OP_REPLACE: break; default: - dev_dbg(&dev->pdev->dev, "unsupported operation %d\n", + dev_dbg(dev->dev, "unsupported operation %d\n", args->operation); return -EINVAL; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c index 47cad23a6b9e..bca4dddd5a15 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c @@ -176,7 +176,7 @@ struct amdgpu_i2c_chan *amdgpu_i2c_create(struct drm_device *dev, i2c->rec = *rec; i2c->adapter.owner = THIS_MODULE; i2c->adapter.class = I2C_CLASS_DDC; - i2c->adapter.dev.parent = &dev->pdev->dev; + i2c->adapter.dev.parent = dev->dev; i2c->dev = dev; i2c_set_adapdata(&i2c->adapter, i2c); mutex_init(&i2c->mutex); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index b16b32797624..3c37cf1ae8b7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -142,7 +142,7 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) (amdgpu_is_atpx_hybrid() || amdgpu_has_atpx_dgpu_power_cntl()) && ((flags & AMD_IS_APU) == 0) && - !pci_is_thunderbolt_attached(dev->pdev)) + !pci_is_thunderbolt_attached(to_pci_dev(dev->dev))) flags |= AMD_IS_PX; parent = pci_upstream_bridge(adev->pdev); @@ -156,7 +156,7 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) */ r = amdgpu_device_init(adev, flags); if (r) { - dev_err(&dev->pdev->dev, "Fatal error during GPU init\n"); + dev_err(dev->dev, "Fatal error during GPU init\n"); goto out; } @@ -199,7 +199,7 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) acpi_status = amdgpu_acpi_init(adev); if (acpi_status) - dev_dbg(&dev->pdev->dev, "Error during ACPI methods call\n"); + dev_dbg(dev->dev, "Error during ACPI methods call\n"); if (adev->runpm) { /* only need to skip on ATPX */ @@ -735,10 +735,10 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) if (!dev_info) return -ENOMEM; - dev_info->device_id = dev->pdev->device; + dev_info->device_id = adev->pdev->device; dev_info->chip_rev = adev->rev_id; dev_info->external_rev = adev->external_rev_id; - dev_info->pci_rev = dev->pdev->revision; + dev_info->pci_rev = adev->pdev->revision; dev_info->family = adev->family; dev_info->num_shader_engines = adev->gfx.config.max_shader_engines; dev_info->num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;_______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer
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