[PATCH 10/12] misc: pci_endpoint_test: Add support for rockchip rk3588

[Frank Li]

On Wed, Apr 24, 2024 at 05:16:28PM +0200, Niklas Cassel wrote:
> Rockchip rk3588 requires 64k alignment.
> While there is an existing device_id:vendor_id in the driver with 64k
> alignment, that device_id:vendor_id is am654, which uses BAR2 instead of
> BAR0 as the test_reg_bar, and also has special is_am654_pci_dev() checks
> in the driver to disallow BAR0. In order to allow testing all BARs, add a
> new rk3588 entry in the driver.
> 
> We intentionally do not add the vendor id to pci_ids.h, since the policy
> for that file is that the vendor id has to be used by multiple drivers.
> 
> Hopefully, this new entry will be short-lived, as there is a series on the
> mailing list which intends to move the address alignment restrictions from
> this driver to the endpoint side.
> 
> Add a new entry for rk3588 in order to allow us to test all BARs.
> 
> Signed-off-by: Niklas Cassel <cassel at kernel.org>
> ---
>  drivers/misc/pci_endpoint_test.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
> index c38a6083f0a7..a7f593b4e3b3 100644
> --- a/drivers/misc/pci_endpoint_test.c
> +++ b/drivers/misc/pci_endpoint_test.c
> @@ -84,6 +84,9 @@
>  #define PCI_DEVICE_ID_RENESAS_R8A774E1		0x0025
>  #define PCI_DEVICE_ID_RENESAS_R8A779F0		0x0031
>  
> +#define PCI_VENDOR_ID_ROCKCHIP			0x1d87
> +#define PCI_DEVICE_ID_ROCKCHIP_RK3588		0x3588
> +

Did you make sure 0x3588 will not used by other production with vendor id
0x1d87?

Frank

>  static DEFINE_IDA(pci_endpoint_test_ida);
>  
>  #define to_endpoint_test(priv) container_of((priv), struct pci_endpoint_test, \
> @@ -980,6 +983,11 @@ static const struct pci_endpoint_test_data j721e_data = {
>  	.irq_type = IRQ_TYPE_MSI,
>  };
>  
> +static const struct pci_endpoint_test_data rk3588_data = {
> +	.alignment = SZ_64K,
> +	.irq_type = IRQ_TYPE_MSI,
> +};
> +
>  static const struct pci_device_id pci_endpoint_test_tbl[] = {
>  	{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_DRA74x),
>  	  .driver_data = (kernel_ulong_t)&default_data,
> @@ -1017,6 +1025,9 @@ static const struct pci_device_id pci_endpoint_test_tbl[] = {
>  	{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_J721S2),
>  	  .driver_data = (kernel_ulong_t)&j721e_data,
>  	},
> +	{ PCI_DEVICE(PCI_VENDOR_ID_ROCKCHIP, PCI_DEVICE_ID_ROCKCHIP_RK3588),
> +	  .driver_data = (kernel_ulong_t)&rk3588_data,
> +	},
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(pci, pci_endpoint_test_tbl);
> 
> -- 
> 2.44.0
>