last_head         247 drivers/gpu/drm/i810/i810_dma.c 	unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
last_head         256 drivers/gpu/drm/i810/i810_dma.c 		if (ring->head != last_head) {
last_head         258 drivers/gpu/drm/i810/i810_dma.c 			last_head = ring->head;
last_head          82 drivers/gpu/drm/i915/gt/intel_engine_types.h 	u32 last_head;
last_head         144 drivers/gpu/drm/i915/gt/intel_hangcheck.c 	engine->hangcheck.last_head = hc->head;
last_head         157 drivers/gpu/drm/i915/gt/intel_hangcheck.c 	if (engine->hangcheck.last_head != hc->head)
last_head        1282 drivers/net/ethernet/microchip/lan743x_main.c 	while ((*tx->head_cpu_ptr) != (tx->last_head)) {
last_head        1283 drivers/net/ethernet/microchip/lan743x_main.c 		lan743x_tx_release_desc(tx, tx->last_head, false);
last_head        1284 drivers/net/ethernet/microchip/lan743x_main.c 		tx->last_head = lan743x_tx_next_index(tx, tx->last_head);
last_head        1292 drivers/net/ethernet/microchip/lan743x_main.c 	original_head = tx->last_head;
last_head        1294 drivers/net/ethernet/microchip/lan743x_main.c 		lan743x_tx_release_desc(tx, tx->last_head, true);
last_head        1295 drivers/net/ethernet/microchip/lan743x_main.c 		tx->last_head = lan743x_tx_next_index(tx, tx->last_head);
last_head        1296 drivers/net/ethernet/microchip/lan743x_main.c 	} while (tx->last_head != original_head);
last_head        1318 drivers/net/ethernet/microchip/lan743x_main.c 	int last_head = tx->last_head;
last_head        1321 drivers/net/ethernet/microchip/lan743x_main.c 	if (last_tail >= last_head)
last_head        1322 drivers/net/ethernet/microchip/lan743x_main.c 		return tx->ring_size - last_tail + last_head - 1;
last_head        1324 drivers/net/ethernet/microchip/lan743x_main.c 		return last_head - last_tail - 1;
last_head        1855 drivers/net/ethernet/microchip/lan743x_main.c 	tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number));
last_head        1997 drivers/net/ethernet/microchip/lan743x_main.c 	if (rx->last_head < 0 || rx->last_head >= rx->ring_size)
last_head        2000 drivers/net/ethernet/microchip/lan743x_main.c 	if (rx->last_head != current_head_index) {
last_head        2001 drivers/net/ethernet/microchip/lan743x_main.c 		descriptor = &rx->ring_cpu_ptr[rx->last_head];
last_head        2008 drivers/net/ethernet/microchip/lan743x_main.c 		first_index = rx->last_head;
last_head        2010 drivers/net/ethernet/microchip/lan743x_main.c 			last_index = rx->last_head;
last_head        2155 drivers/net/ethernet/microchip/lan743x_main.c 		rx->last_head = lan743x_rx_next_index(rx, real_last_index);
last_head        2242 drivers/net/ethernet/microchip/lan743x_main.c 	rx->last_head = 0;
last_head        2298 drivers/net/ethernet/microchip/lan743x_main.c 	rx->last_head = 0;
last_head        2419 drivers/net/ethernet/microchip/lan743x_main.c 	rx->last_head = lan743x_csr_read(adapter, RX_HEAD(rx->channel_number));
last_head        2420 drivers/net/ethernet/microchip/lan743x_main.c 	if (rx->last_head) {
last_head         660 drivers/net/ethernet/microchip/lan743x_main.h 	int		last_head;
last_head         690 drivers/net/ethernet/microchip/lan743x_main.h 	u32		last_head;
last_head        1508 drivers/video/fbdev/intelfb/intelfbhw.c 	u32 last_head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK;
last_head        1519 drivers/video/fbdev/intelfb/intelfbhw.c 		if (dinfo->ring_head != last_head) {
last_head        1521 drivers/video/fbdev/intelfb/intelfbhw.c 			last_head = dinfo->ring_head;