Displaying 20 results from an estimated 35 matches for "pci_base_class_display".
2023 Aug 25
7
[PATCH 0/5] Add the pci_get_base_class() helper and use it
...mming interface ignored. Therefore, add
the pci_get_base_class() function to suit the need.
For example, if an application want to process all PCI(e) display devices
in a system, it can achieve such goal by writing the code as following:
pdev = NULL;
do {
pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev);
if (!pdev)
break;
do_something_for_pci_display_device(pdev);
} while (1);
Sui Jingfeng (5):
PCI: Add the pci_get_base_class() helper
ALSA: hda/intel: Use pci_get_base_class() to reduce duplicated code
drm/nouveau: Use pci_get_base_class() to reduce du...
2016 May 31
2
[PATCH v6 1/2] vga_switcheroo: Add helper for deferred probing
...nly
happen after calling this helper. (Daniel Vetter)
v4: Rebase on 412c8f7de011 ("drm/radeon: Return -EPROBE_DEFER when
amdkfd not loaded")
v5: Some Optimus GPUs use PCI_CLASS_DISPLAY_3D, make sure those are
matched as well. (Emil Velikov)
v6: The if-condition referring to PCI_BASE_CLASS_DISPLAY may be
considered a functional change. Move to a separate commit to
keep this a pure refactoring change. (Emil Velikov, Jani Nikula)
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Ben Skeggs <bskeggs at redhat.com>
Cc: Alex Deucher <alexander.deucher at amd.com>
Signed...
2016 May 31
2
[PATCH 4/4] drm/nouveau/acpi: fix lockup with PCIe runtime PM
...r such ports regardless of the BIOS date, as I've done
for Thunderbolt in this commit:
https://github.com/l1k/linux/commit/3cb8549cd4e5
Not sure how to uniquely identify such ports though. Perhaps check
if there's a device in slot 0 below the port which has
(pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY &&
(pdev->vendor == PCI_VENDOR_ID_NVIDIA ||
pdev->vendor == PCI_VENDOR_ID_ATI)
Best regards,
Lukas
2016 May 31
0
[PATCH v6 2/2] vga_switcheroo: Support deferred probing of audio clients
Daniel Vetter pointed out that vga_switcheroo_client_probe_defer() could
be needed by audio clients as well. To avoid mistakes when someone adds
conditions for these in the future, constrain the single existing
condition to VGA clients by checking for PCI_BASE_CLASS_DISPLAY. This
encompasses both PCI_CLASS_DISPLAY_VGA as well as PCI_CLASS_DISPLAY_3D,
which is used by some Nvidia Optimus GPUs.
Any future checks for audio clients should then be constrained to
PCI_BASE_CLASS_MULTIMEDIA.
v6: Spun out from commit introducing vga_switcheroo_client_probe_defer()
to kee...
2023 Aug 25
1
[PATCH 2/5] ALSA: hda/intel: Use pci_get_base_class() to reduce duplicated code
...if (dhandle) {
- status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
- if (ACPI_SUCCESS(status)) {
- pci_dev_put(pdev);
- return true;
- }
- }
- }
- while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
+ while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
+ if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
+ (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
+ continue;
+
dhandle = ACPI_HANDLE(&pdev->dev);
if (dhandle) {
status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);...
2019 Jul 08
2
[PATCH v2] PCI: Expose hidden NVIDIA HDA controllers
...word(gpu, 0x488, val | BIT(25));
+
+ /* the GPU becomes a multifunction device when the HDA is exposed */
+ pci_read_config_byte(gpu, PCI_HEADER_TYPE, &hdr_type);
+ gpu->multifunction = !!(hdr_type & BIT(7));
+}
+DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
+DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
+
/*
* Some IDT switches incorrectly flag an ACS Source Validation error on
* completions for config read requests even though PCIe r4.0, se...
2019 Jul 31
3
[PATCH] Revert "PCI: Enable NVIDIA HDA controllers"
...dword(gpu, 0x488, val | BIT(25));
-
- /* The GPU becomes a multi-function device when the HDA is enabled */
- pci_read_config_byte(gpu, PCI_HEADER_TYPE, &hdr_type);
- gpu->multifunction = !!(hdr_type & 0x80);
-}
-DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
- PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
-DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
- PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
-
/*
* Some IDT switches incorrectly flag an ACS Source Validation error on
* completions for config read requests even though PCIe r4.0, se...
2019 Jun 13
5
[PATCH] PCI: Expose hidden NVIDIA HDA controllers
...word(gpu, 0x488, val | BIT(25));
+
+ /* the GPU becomes a multifunction device when the HDA is exposed */
+ pci_read_config_byte(gpu, PCI_HEADER_TYPE, &hdr_type);
+ gpu->multifunction = !!(hdr_type & BIT(7));
+}
+DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
+DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
+
/*
* Some IDT switches incorrectly flag an ACS Source Validation error on
* completions for config read requests even though PCIe r4.0, se...
2016 May 21
1
[PATCH v4] vga_switcheroo: Add helper for deferred probing
...n
audio client, chances are they'll forget to add this if-block.
> Furthermore on nouveau and AMD (iirc) front, some dual-gpu/optimus
> systems use PCI_CLASS_DISPLAY_3D. So if we add DISPLAY_VGA perhaps we
> should also check for DISPLAY_3D ?
Fair enough, I've changed it to match PCI_BASE_CLASS_DISPLAY
and sent it out as v5 a few minutes ago.
Thanks,
Lukas
2019 Jun 13
0
[PATCH] PCI: Expose hidden NVIDIA HDA controllers
...t; +
> + /* the GPU becomes a multifunction device when the HDA is exposed */
> + pci_read_config_byte(gpu, PCI_HEADER_TYPE, &hdr_type);
> + gpu->multifunction = !!(hdr_type & BIT(7));
> +}
> +DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
> + PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
> +DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
> + PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
> +
> /*
> * Some IDT switches incorrectly flag an ACS Source Validation error on
> * completions for config read requ...
2019 Jun 13
0
[PATCH] PCI: Expose hidden NVIDIA HDA controllers
...multifunction device when the HDA is exposed */
> + pci_read_config_byte(gpu, PCI_HEADER_TYPE, &hdr_type);
> + gpu->multifunction = !!(hdr_type & BIT(7));
> +}
> +DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
> + PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
> +DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
> + PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
> +
> /*
> * Some IDT switches incorrectly flag an ACS Source Validation error on
> * completions...
2019 Jul 10
0
[PATCH v2] PCI: Expose hidden NVIDIA HDA controllers
...dword(gpu, 0x488, val | BIT(25));
+
+ /* The GPU becomes a multi-function device when the HDA is enabled */
+ pci_read_config_byte(gpu, PCI_HEADER_TYPE, &hdr_type);
+ gpu->multifunction = !!(hdr_type & 0x80);
+}
+DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
+DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
+
/*
* Some IDT switches incorrectly flag an ACS Source Validation error on
* completions for config read requests even though PCIe r4.0, se...
2019 Oct 17
4
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...k_broken_nv_runpm(struct pci_dev *dev)
+{
+ struct pci_dev *bridge = pci_upstream_bridge(dev);
+
+ if (bridge->vendor == PCI_VENDOR_ID_INTEL &&
+ bridge->device == 0x1901)
+ dev->broken_nv_runpm = 1;
+}
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16,
+ quirk_broken_nv_runpm);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index ac8a6c4e1792..903a0b3a39ec 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -416,6 +416,7 @@ struct pci_dev {
unsigned int __aer_firmware_first_valid:1;
unsigned int __aer_firmware_f...
2019 Oct 16
4
[PATCH v3] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...+ * in the bridge controller rather than in the GPU.
+ *
+ * This issue was not able to be reproduced on non laptop systems.
+ */
+
+static void quirk_broken_nv_runpm(struct pci_dev *dev)
+{
+ dev->broken_nv_runpm = 1;
+}
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16,
+ quirk_broken_nv_runpm);
+/* kaby lake */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1901,
+ quirk_broken_nv_runpm);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index ac8a6c4e1792..903a0b3a39ec 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -416,6 +416...
2019 Oct 16
2
[PATCH v3] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...if (bridge &&
> bridge->vendor == PCI_VENDOR_ID_INTEL && bridge->device == 0x1901)
> dev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
>
> > +}
> > +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
> > + PCI_BASE_CLASS_DISPLAY, 16,
> > + quirk_broken_nv_runpm);
> > +/* kaby lake */
> > +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1901,
> > + quirk_broken_nv_runpm);
> > diff --git a/include/linux/pci.h b/include/linux/pci.h
> > index ac8a...
2016 Jun 01
0
[PATCH 4/4] drm/nouveau/acpi: fix lockup with PCIe runtime PM
...op? Maybe the PCI core needs
to export a function that allows drivers to override the detection if
this becomes more common.
> Not sure how to uniquely identify such ports though. Perhaps check
> if there's a device in slot 0 below the port which has
> (pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY &&
> (pdev->vendor == PCI_VENDOR_ID_NVIDIA ||
> pdev->vendor == PCI_VENDOR_ID_ATI)
Seems fragile, there are desktop setups satisfying this match.
--
Kind regards,
Peter Wu
https://lekensteyn.nl
2023 Aug 25
0
[PATCH 5/5] drm/radeon: Use pci_get_base_class() to reduce duplicated code
.../drivers/gpu/drm/radeon/radeon_bios.c
@@ -199,7 +199,11 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev)
if (rdev->flags & RADEON_IS_IGP)
return false;
- while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
+ while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
+ if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
+ (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
+ continue;
+
dhandle = ACPI_HANDLE(&pdev->dev);
if (!dhandle)
continue;
@@ -211,20 +215,6 @@ static bool radeon_atrm_get_bios(struct r...
2019 Nov 22
1
[PATCH v5] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...dev *dev)
+{
+ struct pci_dev *bridge = pci_upstream_bridge(dev);
+
+ if (!bridge || bridge->vendor != PCI_VENDOR_ID_INTEL)
+ return;
+
+ switch (bridge->device) {
+ case 0x1901:
+ dev->broken_nv_runpm = 1;
+ }
+}
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY, 16,
+ quirk_broken_nv_runpm);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index ac8a6c4e1792..903a0b3a39ec 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -416,6 +416,7 @@ struct pci_dev {
unsigned int __aer_firmware_first_valid:1;
unsigned int __aer_firmware_f...
2023 Aug 25
0
[PATCH 1/5] PCI: Add the pci_get_base_class() helper
...d the programming interface ignored. Therefore, add
the pci_get_base_class() function to suit the need.
For example, if an application want to process all PCI(e) display devices
in a system, it can achieve such goal by writing the code as following:
pdev = NULL;
do {
pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev);
if (!pdev)
break;
do_something_for_pci_display_device(pdev);
} while (1);
Cc: Bjorn Helgaas <bhelgaas at google.com>
Signed-off-by: Sui Jingfeng <suijingfeng at loongson.cn>
---
drivers/pci/search.c | 31 +++++++++++++++++++++++++++++++
include/linux/pci.h |...
2016 May 23
1
[PATCH v4] vga_switcheroo: Add helper for deferred probing
...chances of things going wrong, are pretty high.
>> Furthermore on nouveau and AMD (iirc) front, some dual-gpu/optimus
>> systems use PCI_CLASS_DISPLAY_3D. So if we add DISPLAY_VGA perhaps we
>> should also check for DISPLAY_3D ?
>
> Fair enough, I've changed it to match PCI_BASE_CLASS_DISPLAY
> and sent it out as v5 a few minutes ago.
>
Tweaking the exact class id (bitfield) is likely to end up drawn out
and obnoxious. That's why I'm suggesting to keep it separate.
Regards,
Emil