add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/ntb/hw/intel/ntb_hw_intel.h
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@@ -53,6 +53,7 @@
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 #include <linux/ntb.h>
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 #include <linux/pci.h>
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+#include <linux/io-64-nonatomic-lo-hi.h>
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 /* PCI device IDs */
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 #define PCI_DEVICE_ID_INTEL_NTB_B2B_JSF	0x3725
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@@ -71,6 +72,7 @@
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 #define PCI_DEVICE_ID_INTEL_NTB_PS_BDX	0x6F0E
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 #define PCI_DEVICE_ID_INTEL_NTB_SS_BDX	0x6F0F
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 #define PCI_DEVICE_ID_INTEL_NTB_B2B_SKX	0x201C
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+#define PCI_DEVICE_ID_INTEL_NTB_B2B_ICX	0x347e
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 /* Ntb control and link status */
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 #define NTB_CTL_CFG_LOCK		BIT(0)
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@@ -101,7 +103,7 @@
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 struct intel_ntb_reg {
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 	int (*poll_link)(struct intel_ntb_dev *ndev);
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 	int (*link_is_up)(struct intel_ntb_dev *ndev);
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-	u64 (*db_ioread)(void __iomem *mmio);
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+	u64 (*db_ioread)(const void __iomem *mmio);
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 	void (*db_iowrite)(u64 db_bits, void __iomem *mmio);
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 	unsigned long			ntb_ctl;
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 	resource_size_t			db_size;
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@@ -119,6 +121,7 @@
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 	unsigned long			bar0_base;
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 	unsigned long			bar2_xlat;
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 	unsigned long			bar2_limit;
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+	unsigned short			bar2_idx;
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 };
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 struct intel_b2b_addr {
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@@ -181,6 +184,9 @@
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 	struct dentry			*debugfs_dir;
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 	struct dentry			*debugfs_info;
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+
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+	/* gen4 entries */
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+	int				dev_up;
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 };
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 #define ntb_ndev(__ntb) container_of(__ntb, struct intel_ntb_dev, ntb)
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@@ -218,33 +224,11 @@
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 	return 0;
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 }
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-#ifndef ioread64
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-#ifdef readq
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-#define ioread64 readq
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-#else
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-#define ioread64 _ioread64
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-static inline u64 _ioread64(void __iomem *mmio)
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+static inline int pdev_is_gen4(struct pci_dev *pdev)
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 {
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-	u64 low, high;
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+	if (pdev->device == PCI_DEVICE_ID_INTEL_NTB_B2B_ICX)
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+		return 1;
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-	low = ioread32(mmio);
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-	high = ioread32(mmio + sizeof(u32));
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-	return low | (high << 32);
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+	return 0;
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 }
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-#endif
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-#endif
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-
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-#ifndef iowrite64
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-#ifdef writeq
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-#define iowrite64 writeq
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-#else
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-#define iowrite64 _iowrite64
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-static inline void _iowrite64(u64 val, void __iomem *mmio)
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-{
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-	iowrite32(val, mmio);
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-	iowrite32(val >> 32, mmio + sizeof(u32));
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-}
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-#endif
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-#endif
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-
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 #endif