7  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
20  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
26  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
62 	struct sci_unsolicited_frame_control *uf_control = &ihost->uf_control;  in sci_unsolicited_frame_control_construct()
64 	dma_addr_t dma = ihost->ufi_dma;  in sci_unsolicited_frame_control_construct()
65 	void *virt = ihost->ufi_buf;  in sci_unsolicited_frame_control_construct()
75 	 * Program the location of the UF header table into the SCU.  in sci_unsolicited_frame_control_construct()
77 	 * - The address must align on a 64-byte boundary. Guaranteed to be  in sci_unsolicited_frame_control_construct()
78 	 *   on 64-byte boundary already 1KB boundary for unsolicited frames.  in sci_unsolicited_frame_control_construct()
79 	 * - Program unused header entries to overlap with the last  in sci_unsolicited_frame_control_construct()
84 	uf_control->headers.physical_address = dma + SCI_UFI_BUF_SIZE;  in sci_unsolicited_frame_control_construct()
85 	uf_control->headers.array = virt + SCI_UFI_BUF_SIZE;  in sci_unsolicited_frame_control_construct()
88 	 * Program the location of the UF address table into the SCU.  in sci_unsolicited_frame_control_construct()
90 	 * - The address must align on a 64-bit boundary. Guaranteed to be on 64  in sci_unsolicited_frame_control_construct()
92 	 *   64-bit boundary and headers are on a 64-bytes in size.  in sci_unsolicited_frame_control_construct()
94 	uf_control->address_table.physical_address = dma + SCI_UFI_BUF_SIZE + SCI_UFI_HDR_SIZE;  in sci_unsolicited_frame_control_construct()
95 	uf_control->address_table.array = virt + SCI_UFI_BUF_SIZE + SCI_UFI_HDR_SIZE;  in sci_unsolicited_frame_control_construct()
96 	uf_control->get = 0;  in sci_unsolicited_frame_control_construct()
100 	 * - The last entry in the UF queue is not NULL.  in sci_unsolicited_frame_control_construct()
101 	 * - There is a power of 2 number of entries (NULL or not-NULL)  in sci_unsolicited_frame_control_construct()
103 	 * - Aligned on a 1KB boundary. */  in sci_unsolicited_frame_control_construct()
110 		uf = &uf_control->buffers.array[i];  in sci_unsolicited_frame_control_construct()
112 		uf_control->address_table.array[i] = dma;  in sci_unsolicited_frame_control_construct()
114 		uf->buffer = virt;  in sci_unsolicited_frame_control_construct()
115 		uf->header = &uf_control->headers.array[i];  in sci_unsolicited_frame_control_construct()
116 		uf->state  = UNSOLICITED_FRAME_EMPTY;  in sci_unsolicited_frame_control_construct()
136 		*frame_header = &uf_control->buffers.array[frame_index].header->data;  in sci_unsolicited_frame_control_get_header()
149 		*frame_buffer = uf_control->buffers.array[frame_index].buffer;  in sci_unsolicited_frame_control_get_buffer()
163 	frame_get   = uf_control->get & (SCU_MAX_UNSOLICITED_FRAMES - 1);  in sci_unsolicited_frame_control_release_frame()
164 	frame_cycle = uf_control->get & SCU_MAX_UNSOLICITED_FRAMES;  in sci_unsolicited_frame_control_release_frame()
171 	while (lower_32_bits(uf_control->address_table.array[frame_get]) == 0 &&  in sci_unsolicited_frame_control_release_frame()
172 	       upper_32_bits(uf_control->address_table.array[frame_get]) == 0 &&  in sci_unsolicited_frame_control_release_frame()
184 	uf_control->buffers.array[frame_index].state = UNSOLICITED_FRAME_RELEASED;  in sci_unsolicited_frame_control_release_frame()
195 	 * The frame index is equal to the current get pointer so we  in sci_unsolicited_frame_control_release_frame()
198 	while (uf_control->buffers.array[frame_get].state == UNSOLICITED_FRAME_RELEASED) {  in sci_unsolicited_frame_control_release_frame()
199 		uf_control->buffers.array[frame_get].state = UNSOLICITED_FRAME_EMPTY;  in sci_unsolicited_frame_control_release_frame()
201 		if (frame_get+1 == SCU_MAX_UNSOLICITED_FRAMES-1) {  in sci_unsolicited_frame_control_release_frame()
208 	uf_control->get = SCU_UFQGP_GEN_BIT(ENABLE_BIT) | frame_cycle | frame_get;  in sci_unsolicited_frame_control_release_frame()