88 	 * Set the root complex BAR configuration register:  in cdns_pcie_host_init_root_port()
122 					enum cdns_pcie_rp_bar bar,  in cdns_pcie_host_bar_ib_config()  argument
129 	if (!rc->avail_ib_bar[bar])  in cdns_pcie_host_bar_ib_config()
132 	rc->avail_ib_bar[bar] = false;  in cdns_pcie_host_bar_ib_config()
138 	cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_RP_BAR_ADDR0(bar), addr0);  in cdns_pcie_host_bar_ib_config()
139 	cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_RP_BAR_ADDR1(bar), addr1);  in cdns_pcie_host_bar_ib_config()
141 	if (bar == RP_NO_BAR)  in cdns_pcie_host_bar_ib_config()
145 	value &= ~(LM_RC_BAR_CFG_CTRL_MEM_64BITS(bar) |  in cdns_pcie_host_bar_ib_config()
146 		   LM_RC_BAR_CFG_CTRL_PREF_MEM_64BITS(bar) |  in cdns_pcie_host_bar_ib_config()
147 		   LM_RC_BAR_CFG_CTRL_MEM_32BITS(bar) |  in cdns_pcie_host_bar_ib_config()
148 		   LM_RC_BAR_CFG_CTRL_PREF_MEM_32BITS(bar) |  in cdns_pcie_host_bar_ib_config()
149 		   LM_RC_BAR_CFG_APERTURE(bar, bar_aperture_mask[bar] + 2));  in cdns_pcie_host_bar_ib_config()
152 			value |= LM_RC_BAR_CFG_CTRL_MEM_64BITS(bar);  in cdns_pcie_host_bar_ib_config()
153 		value |= LM_RC_BAR_CFG_CTRL_PREF_MEM_64BITS(bar);  in cdns_pcie_host_bar_ib_config()
156 			value |= LM_RC_BAR_CFG_CTRL_MEM_32BITS(bar);  in cdns_pcie_host_bar_ib_config()
157 		value |= LM_RC_BAR_CFG_CTRL_PREF_MEM_32BITS(bar);  in cdns_pcie_host_bar_ib_config()
160 	value |= LM_RC_BAR_CFG_APERTURE(bar, aperture);  in cdns_pcie_host_bar_ib_config()
169 	enum cdns_pcie_rp_bar bar, sel_bar;  in cdns_pcie_host_find_min_bar()  local
172 	for (bar = RP_BAR0; bar <= RP_NO_BAR; bar++) {  in cdns_pcie_host_find_min_bar()
173 		if (!rc->avail_ib_bar[bar])  in cdns_pcie_host_find_min_bar()
176 		if (size <= bar_max_size[bar]) {  in cdns_pcie_host_find_min_bar()
178 				sel_bar = bar;  in cdns_pcie_host_find_min_bar()
182 			if (bar_max_size[bar] < bar_max_size[sel_bar])  in cdns_pcie_host_find_min_bar()
183 				sel_bar = bar;  in cdns_pcie_host_find_min_bar()
193 	enum cdns_pcie_rp_bar bar, sel_bar;  in cdns_pcie_host_find_max_bar()  local
196 	for (bar = RP_BAR0; bar <= RP_NO_BAR; bar++) {  in cdns_pcie_host_find_max_bar()
197 		if (!rc->avail_ib_bar[bar])  in cdns_pcie_host_find_max_bar()
200 		if (size >= bar_max_size[bar]) {  in cdns_pcie_host_find_max_bar()
202 				sel_bar = bar;  in cdns_pcie_host_find_max_bar()
206 			if (bar_max_size[bar] > bar_max_size[sel_bar])  in cdns_pcie_host_find_max_bar()
207 				sel_bar = bar;  in cdns_pcie_host_find_max_bar()
220 	enum cdns_pcie_rp_bar bar;  in cdns_pcie_host_bar_config()  local
237 		 * Try to find a minimum BAR whose size is greater than  in cdns_pcie_host_bar_config()
241 		 * If a minimum BAR is found, IB ATU will be configured and  in cdns_pcie_host_bar_config()
244 		bar = cdns_pcie_host_find_min_bar(rc, size);  in cdns_pcie_host_bar_config()
245 		if (bar != RP_BAR_UNDEFINED) {  in cdns_pcie_host_bar_config()
246 			ret = cdns_pcie_host_bar_ib_config(rc, bar, cpu_addr,  in cdns_pcie_host_bar_config()
249 				dev_err(dev, "IB BAR: %d config failed\n", bar);  in cdns_pcie_host_bar_config()
255 		 * resource_entry size cannot be fitted in a single BAR. So we  in cdns_pcie_host_bar_config()
256 		 * find a maximum BAR whose size is less than or equal to the  in cdns_pcie_host_bar_config()
259 		 * BAR. The remaining size would be fitted during the next  in cdns_pcie_host_bar_config()
261 		 * If a maximum BAR is not found, there is no way we can fit  in cdns_pcie_host_bar_config()
264 		bar = cdns_pcie_host_find_max_bar(rc, size);  in cdns_pcie_host_bar_config()
265 		if (bar == RP_BAR_UNDEFINED) {  in cdns_pcie_host_bar_config()
266 			dev_err(dev, "No free BAR to map cpu_addr %llx\n",  in cdns_pcie_host_bar_config()
271 		winsize = bar_max_size[bar];  in cdns_pcie_host_bar_config()
272 		ret = cdns_pcie_host_bar_ib_config(rc, bar, cpu_addr, winsize,  in cdns_pcie_host_bar_config()
275 			dev_err(dev, "IB BAR: %d config failed\n", bar);  in cdns_pcie_host_bar_config()
311 		of_property_read_u32(np, "cdns,no-bar-match-nbits",  in cdns_pcie_host_map_dma_ranges()
316 			dev_err(dev, "IB BAR: %d config failed\n", RP_NO_BAR);  in cdns_pcie_host_map_dma_ranges()
424 	enum cdns_pcie_rp_bar bar;  in cdns_pcie_host_setup()  local
464 	for (bar = RP_BAR0; bar <= RP_NO_BAR; bar++)  in cdns_pcie_host_setup()
465 		rc->avail_ib_bar[bar] = true;  in cdns_pcie_host_setup()