1 /*-
2  * Copyright 2016-2023 Microchip Technology, Inc. and/or its subsidiaries.
32  * DMA map load callback function
65  * DMA mem resource allocation wrapper function
75 	ASSERT(dma_mem->align >= 4);  in os_dma_mem_alloc()
77 	/* DMA memory needed - allocate it */  in os_dma_mem_alloc()
79 		softs->os_specific.pqi_parent_dmat, /* parent */  in os_dma_mem_alloc()
80 		dma_mem->align, 0,	/* algnmnt, boundary */  in os_dma_mem_alloc()
84 		dma_mem->size, 		/* maxsize */  in os_dma_mem_alloc()
86 		dma_mem->size,		/* maxsegsize */  in os_dma_mem_alloc()
89 		&dma_mem->dma_tag)) != 0 ) {  in os_dma_mem_alloc()
90 	        DBG_ERR("can't allocate DMA tag with error = 0x%x\n", ret);  in os_dma_mem_alloc()
94 	if (!dma_mem->dma_tag) {  in os_dma_mem_alloc()
95 	        DBG_ERR("dma tag is NULL\n");  in os_dma_mem_alloc()
100 	if ((ret = bus_dmamem_alloc(dma_mem->dma_tag, (void **)&dma_mem->virt_addr,  in os_dma_mem_alloc()
101 		BUS_DMA_NOWAIT, &dma_mem->dma_map)) != 0) {  in os_dma_mem_alloc()
102 		DBG_ERR("can't allocate DMA memory for required object \  in os_dma_mem_alloc()
107 	if((ret = bus_dmamap_load(dma_mem->dma_tag, dma_mem->dma_map,  in os_dma_mem_alloc()
108 		dma_mem->virt_addr, dma_mem->size,  in os_dma_mem_alloc()
109 		os_dma_map, &dma_mem->dma_addr, 0)) != 0) {  in os_dma_mem_alloc()
110 		DBG_ERR("can't load DMA memory for required \  in os_dma_mem_alloc()
115 	memset(dma_mem->virt_addr, 0, dma_mem->size);  in os_dma_mem_alloc()
123 	if(dma_mem->virt_addr)  in os_dma_mem_alloc()
124 		bus_dmamem_free(dma_mem->dma_tag, dma_mem->virt_addr,  in os_dma_mem_alloc()
125 				dma_mem->dma_map);  in os_dma_mem_alloc()
127 	if(dma_mem->dma_tag)  in os_dma_mem_alloc()
128 		bus_dma_tag_destroy(dma_mem->dma_tag);  in os_dma_mem_alloc()
138  * DMA mem resource deallocation wrapper function
145 	if(dma_mem->dma_addr) {  in os_dma_mem_free()
146 		bus_dmamap_unload(dma_mem->dma_tag, dma_mem->dma_map);  in os_dma_mem_free()
147 		dma_mem->dma_addr = 0;  in os_dma_mem_free()
150 	if(dma_mem->virt_addr) {  in os_dma_mem_free()
151 		bus_dmamem_free(dma_mem->dma_tag, dma_mem->virt_addr,  in os_dma_mem_free()
152 					dma_mem->dma_map);  in os_dma_mem_free()
153 		dma_mem->virt_addr = NULL;  in os_dma_mem_free()
156 	if(dma_mem->dma_tag) {  in os_dma_mem_free()
157 		bus_dma_tag_destroy(dma_mem->dma_tag);  in os_dma_mem_free()
158 		dma_mem->dma_tag = NULL;  in os_dma_mem_free()
166  * Mem resource allocation wrapper function
184  * Mem resource deallocation wrapper function
197  * dma/bus resource deallocation wrapper function
202 	if(softs->os_specific.pqi_parent_dmat)  in os_resource_free()
203 		bus_dma_tag_destroy(softs->os_specific.pqi_parent_dmat);  in os_resource_free()
205 	if (softs->os_specific.pqi_regs_res0 != NULL)  in os_resource_free()
206                 bus_release_resource(softs->os_specific.pqi_dev,  in os_resource_free()
208 				softs->os_specific.pqi_regs_rid0,  in os_resource_free()
209 				softs->os_specific.pqi_regs_res0);  in os_resource_free()