8 #include "gsi.h"
12 /* Is this register ID valid for the current GSI version? */
13 static bool gsi_reg_id_valid(struct gsi *gsi, enum gsi_reg_id reg_id)  in gsi_reg_id_valid()  argument
18 		return gsi->version >= IPA_VERSION_3_5;  in gsi_reg_id_valid()
21 		return gsi->version >= IPA_VERSION_3_5_1;  in gsi_reg_id_valid()
24 		return gsi->version >= IPA_VERSION_5_0;  in gsi_reg_id_valid()
82 const struct reg *gsi_reg(struct gsi *gsi, enum gsi_reg_id reg_id)  in gsi_reg()  argument
84 	if (WARN(!gsi_reg_id_valid(gsi, reg_id), "invalid reg %u\n", reg_id))  in gsi_reg()
87 	return reg(gsi->regs, reg_id);  in gsi_reg()
90 static const struct regs *gsi_regs(struct gsi *gsi)  in gsi_regs()  argument
92 	switch (gsi->version) {  in gsi_regs()
121 /* Sets gsi->virt and I/O maps the "gsi" memory range for registers */
122 int gsi_reg_init(struct gsi *gsi, struct platform_device *pdev)  in gsi_reg_init()  argument
128 	/* Get GSI memory range and map it */  in gsi_reg_init()
129 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gsi");  in gsi_reg_init()
131 		dev_err(dev, "DT error getting \"gsi\" memory property\n");  in gsi_reg_init()
137 		dev_err(dev, "DT memory resource \"gsi\" out of range\n");  in gsi_reg_init()
141 	gsi->regs = gsi_regs(gsi);  in gsi_reg_init()
142 	if (!gsi->regs) {  in gsi_reg_init()
143 		dev_err(dev, "unsupported IPA version %u (?)\n", gsi->version);  in gsi_reg_init()
147 	gsi->virt = ioremap(res->start, size);  in gsi_reg_init()
148 	if (!gsi->virt) {  in gsi_reg_init()
149 		dev_err(dev, "unable to remap \"gsi\" memory\n");  in gsi_reg_init()
157 void gsi_reg_exit(struct gsi *gsi)  in gsi_reg_exit()  argument
159 	iounmap(gsi->virt);  in gsi_reg_exit()
160 	gsi->virt = NULL;  in gsi_reg_exit()
161 	gsi->regs = NULL;  in gsi_reg_exit()