* [PATCH] PCI: Add ACS quirk for Qualcomm Hamoa & Glymur
@ 2026-01-09 8:23 Krishna Chaitanya Chundru
2026-01-09 15:58 ` Bjorn Helgaas
2026-01-21 14:23 ` Manivannan Sadhasivam
0 siblings, 2 replies; 3+ messages in thread
From: Krishna Chaitanya Chundru @ 2026-01-09 8:23 UTC (permalink / raw)
To: Bjorn Helgaas; +Cc: linux-pci, linux-kernel, mani, Krishna Chaitanya Chundru
The Qualcomm Hamoa & Glymur root ports don't advertise an ACS capability,
but they do provide ACS-like features to disable peer transactions and
validate bus numbers in requests.
So add an ACS quirk for Hamoa & Glymur.
Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
---
drivers/pci/quirks.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index b9c252aa6fe08a864cebe245f5dd7bf41fcc5116..75dee46f474a643cc79d112df1f5a57a9f6b95b1 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5107,6 +5107,10 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs },
/* QCOM SA8775P root port */
{ PCI_VENDOR_ID_QCOM, 0x0115, pci_quirk_qcom_rp_acs },
+ /* QCOM Hamoa root port */
+ { PCI_VENDOR_ID_QCOM, 0x0111, pci_quirk_qcom_rp_acs },
+ /* QCOM Glymur root port */
+ { PCI_VENDOR_ID_QCOM, 0x0120, pci_quirk_qcom_rp_acs },
/* HXT SD4800 root ports. The ACS design is same as QCOM QDF2xxx */
{ PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs },
/* Intel PCH root ports */
---
base-commit: 623fb9912f6af600cda3b6bd166ac738c1115ef4
change-id: 20260109-acs_quirk-0f8e83dc945e
Best regards,
--
Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] PCI: Add ACS quirk for Qualcomm Hamoa & Glymur
2026-01-09 8:23 [PATCH] PCI: Add ACS quirk for Qualcomm Hamoa & Glymur Krishna Chaitanya Chundru
@ 2026-01-09 15:58 ` Bjorn Helgaas
2026-01-21 14:23 ` Manivannan Sadhasivam
1 sibling, 0 replies; 3+ messages in thread
From: Bjorn Helgaas @ 2026-01-09 15:58 UTC (permalink / raw)
To: Krishna Chaitanya Chundru; +Cc: Bjorn Helgaas, linux-pci, linux-kernel, mani
On Fri, Jan 09, 2026 at 01:53:32PM +0530, Krishna Chaitanya Chundru wrote:
> The Qualcomm Hamoa & Glymur root ports don't advertise an ACS capability,
> but they do provide ACS-like features to disable peer transactions and
> validate bus numbers in requests.
>
> So add an ACS quirk for Hamoa & Glymur.
>
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Applied to pci/virtualization for v6.20, thanks!
> ---
> drivers/pci/quirks.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index b9c252aa6fe08a864cebe245f5dd7bf41fcc5116..75dee46f474a643cc79d112df1f5a57a9f6b95b1 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -5107,6 +5107,10 @@ static const struct pci_dev_acs_enabled {
> { PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs },
> /* QCOM SA8775P root port */
> { PCI_VENDOR_ID_QCOM, 0x0115, pci_quirk_qcom_rp_acs },
> + /* QCOM Hamoa root port */
> + { PCI_VENDOR_ID_QCOM, 0x0111, pci_quirk_qcom_rp_acs },
> + /* QCOM Glymur root port */
> + { PCI_VENDOR_ID_QCOM, 0x0120, pci_quirk_qcom_rp_acs },
> /* HXT SD4800 root ports. The ACS design is same as QCOM QDF2xxx */
> { PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs },
> /* Intel PCH root ports */
>
> ---
> base-commit: 623fb9912f6af600cda3b6bd166ac738c1115ef4
> change-id: 20260109-acs_quirk-0f8e83dc945e
>
> Best regards,
> --
> Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] PCI: Add ACS quirk for Qualcomm Hamoa & Glymur
2026-01-09 8:23 [PATCH] PCI: Add ACS quirk for Qualcomm Hamoa & Glymur Krishna Chaitanya Chundru
2026-01-09 15:58 ` Bjorn Helgaas
@ 2026-01-21 14:23 ` Manivannan Sadhasivam
1 sibling, 0 replies; 3+ messages in thread
From: Manivannan Sadhasivam @ 2026-01-21 14:23 UTC (permalink / raw)
To: Krishna Chaitanya Chundru; +Cc: Bjorn Helgaas, linux-pci, linux-kernel
On Fri, Jan 09, 2026 at 01:53:32PM +0530, Krishna Chaitanya Chundru wrote:
> The Qualcomm Hamoa & Glymur root ports don't advertise an ACS capability,
> but they do provide ACS-like features to disable peer transactions and
> validate bus numbers in requests.
>
> So add an ACS quirk for Hamoa & Glymur.
>
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
- Mani
> ---
> drivers/pci/quirks.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index b9c252aa6fe08a864cebe245f5dd7bf41fcc5116..75dee46f474a643cc79d112df1f5a57a9f6b95b1 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -5107,6 +5107,10 @@ static const struct pci_dev_acs_enabled {
> { PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs },
> /* QCOM SA8775P root port */
> { PCI_VENDOR_ID_QCOM, 0x0115, pci_quirk_qcom_rp_acs },
> + /* QCOM Hamoa root port */
> + { PCI_VENDOR_ID_QCOM, 0x0111, pci_quirk_qcom_rp_acs },
> + /* QCOM Glymur root port */
> + { PCI_VENDOR_ID_QCOM, 0x0120, pci_quirk_qcom_rp_acs },
> /* HXT SD4800 root ports. The ACS design is same as QCOM QDF2xxx */
> { PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs },
> /* Intel PCH root ports */
>
> ---
> base-commit: 623fb9912f6af600cda3b6bd166ac738c1115ef4
> change-id: 20260109-acs_quirk-0f8e83dc945e
>
> Best regards,
> --
> Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
>
--
மணிவண்ணன் சதாசிவம்
^ permalink raw reply [flat|nested] 3+ messages in thread
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2026-01-09 8:23 [PATCH] PCI: Add ACS quirk for Qualcomm Hamoa & Glymur Krishna Chaitanya Chundru
2026-01-09 15:58 ` Bjorn Helgaas
2026-01-21 14:23 ` Manivannan Sadhasivam
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