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PCI: rockchip: dw: Add the specification of ep information

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Definition rockchip ep device information, like drivers version
and devices dma status. These information will be store in BAR0
in default.

Change-Id: I33dcc00e9923d10ad63d706ce16ba646f0049480
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
2023-01-17 16:46:16 +08:00
parent 29686dd3c9
commit 051e4d7cf0
1 changed files with 47 additions and 0 deletions
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47
include/uapi/linux/rk-pcie-ep.h
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@@ -8,19 +8,66 @@
#include <linux/types.h>
/*
* rockchip pcie driver elbi ioctrl output data
*/
struct pcie_ep_user_data {
__u64 bar0_phys_addr;
__u32 elbi_app_user[11];
};
/*
* rockchip driver cache ioctrl input param
*/
struct pcie_ep_dma_cache_cfg {
__u64 addr;
__u32 size;
};
#define PCIE_EP_OBJ_INFO_MAGIC 0x524B4550
enum pcie_ep_obj_irq_type {
OBJ_IRQ_UNKNOWN,
OBJ_IRQ_DMA,
OBJ_IRQ_USER,
OBJ_IRQ_ELBI,
};
struct pcie_ep_obj_irq_dma_status {
__u32 wr;
__u32 rd;
};
enum pcie_ep_mmap_resource {
PCIE_EP_MMAP_RESOURCE_DBI,
PCIE_EP_MMAP_RESOURCE_BAR0,
PCIE_EP_MMAP_RESOURCE_BAR2,
PCIE_EP_MMAP_RESOURCE_BAR4,
PCIE_EP_MMAP_RESOURCE_MAX,
};
/*
* rockchip ep device information which is store in BAR0
*/
struct pcie_ep_obj_info {
__u32 magic;
__u32 version;
__u8 reserved[0x1F8];
u32 irq_type_rc; /* Generate in ep isr, valid only for rc, clear in rc */
struct pcie_ep_obj_irq_dma_status dma_status_rc; /* Generate in ep isr, valid only for rc, clear in rc */
u32 irq_type_ep; /* Generate in ep isr, valid only for ep, clear in ep */
struct pcie_ep_obj_irq_dma_status dma_status_ep; /* Generate in ep isr, valid only for ep, clear in ep */
__u32 obj_irq_user_data; /* OBJ_IRQ_USER userspace data */
};
#define PCIE_BASE 'P'
#define PCIE_DMA_GET_ELBI_DATA _IOR(PCIE_BASE, 0, struct pcie_ep_user_data)
#define PCIE_DMA_CACHE_INVALIDE _IOW(PCIE_BASE, 1, struct pcie_ep_dma_cache_cfg)
#define PCIE_DMA_CACHE_FLUSH _IOW(PCIE_BASE, 2, struct pcie_ep_dma_cache_cfg)
#define PCIE_DMA_IRQ_MASK_ALL _IOW(PCIE_BASE, 3, int)
#define PCIE_DMA_RAISE_MSI_OBJ_IRQ_USER _IOW(PCIE_BASE, 4, int)
#define PCIE_EP_GET_USER_INFO _IOR(PCIE_BASE, 5, struct pcie_ep_user_data)
#define PCIE_EP_SET_MMAP_RESOURCE _IOW(PCIE_BASE, 6, enum pcie_ep_mmap_resource)
#endif