12 #include <soc/tegra/bpmp.h>
13 #include <soc/tegra/bpmp-abi.h>
16 #include "bpmp-private.h"
82 static int tegra186_bpmp_ring_doorbell(struct tegra_bpmp *bpmp)  in tegra186_bpmp_ring_doorbell()  argument
84 	struct tegra186_bpmp *priv = bpmp->priv;  in tegra186_bpmp_ring_doorbell()
98 	struct tegra_bpmp *bpmp = data;  in tegra186_bpmp_ivc_notify()  local
99 	struct tegra186_bpmp *priv = bpmp->priv;  in tegra186_bpmp_ivc_notify()
104 	tegra186_bpmp_ring_doorbell(bpmp);  in tegra186_bpmp_ivc_notify()
108 				      struct tegra_bpmp *bpmp,  in tegra186_bpmp_channel_init()  argument
111 	struct tegra186_bpmp *priv = bpmp->priv;  in tegra186_bpmp_channel_init()
117 	channel->ivc = devm_kzalloc(bpmp->dev, sizeof(*channel->ivc),  in tegra186_bpmp_channel_init()
136 			     bpmp);  in tegra186_bpmp_channel_init()
138 		dev_err(bpmp->dev, "failed to setup IVC for channel %u: %d\n",  in tegra186_bpmp_channel_init()
144 	channel->bpmp = bpmp;  in tegra186_bpmp_channel_init()
154 	/* sync the channel state with BPMP */  in tegra186_bpmp_channel_reset()
166 	struct tegra_bpmp *bpmp = mbox_client_to_bpmp(client);  in mbox_handle_rx()  local
168 	tegra_bpmp_handle_rx(bpmp);  in mbox_handle_rx()
171 static void tegra186_bpmp_teardown_channels(struct tegra_bpmp *bpmp)  in tegra186_bpmp_teardown_channels()  argument
173 	struct tegra186_bpmp *priv = bpmp->priv;  in tegra186_bpmp_teardown_channels()
176 	for (i = 0; i < bpmp->threaded.count; i++) {  in tegra186_bpmp_teardown_channels()
177 		if (!bpmp->threaded_channels[i].bpmp)  in tegra186_bpmp_teardown_channels()
180 		tegra186_bpmp_channel_cleanup(&bpmp->threaded_channels[i]);  in tegra186_bpmp_teardown_channels()
183 	tegra186_bpmp_channel_cleanup(bpmp->rx_channel);  in tegra186_bpmp_teardown_channels()
184 	tegra186_bpmp_channel_cleanup(bpmp->tx_channel);  in tegra186_bpmp_teardown_channels()
192 static int tegra186_bpmp_dram_init(struct tegra_bpmp *bpmp)  in tegra186_bpmp_dram_init()  argument
194 	struct tegra186_bpmp *priv = bpmp->priv;  in tegra186_bpmp_dram_init()
200 	np = of_parse_phandle(bpmp->dev->of_node, "memory-region", 0);  in tegra186_bpmp_dram_init()
206 		dev_warn(bpmp->dev, "failed to parse memory region: %d\n", err);  in tegra186_bpmp_dram_init()
213 		dev_warn(bpmp->dev, "DRAM region must be larger than 8 KiB\n");  in tegra186_bpmp_dram_init()
220 	priv->tx.dram = devm_memremap(bpmp->dev, priv->tx.phys, size,  in tegra186_bpmp_dram_init()
224 		dev_warn(bpmp->dev, "failed to map DRAM region: %d\n", err);  in tegra186_bpmp_dram_init()
233 static int tegra186_bpmp_sram_init(struct tegra_bpmp *bpmp)  in tegra186_bpmp_sram_init()  argument
235 	struct tegra186_bpmp *priv = bpmp->priv;  in tegra186_bpmp_sram_init()
238 	priv->tx.pool = of_gen_pool_get(bpmp->dev->of_node, "shmem", 0);  in tegra186_bpmp_sram_init()
240 		dev_err(bpmp->dev, "TX shmem pool not found\n");  in tegra186_bpmp_sram_init()
247 		dev_err(bpmp->dev, "failed to allocate from TX pool\n");  in tegra186_bpmp_sram_init()
251 	priv->rx.pool = of_gen_pool_get(bpmp->dev->of_node, "shmem", 1);  in tegra186_bpmp_sram_init()
253 		dev_err(bpmp->dev, "RX shmem pool not found\n");  in tegra186_bpmp_sram_init()
261 		dev_err(bpmp->dev, "failed to allocate from RX pool\n");  in tegra186_bpmp_sram_init()
274 static int tegra186_bpmp_setup_channels(struct tegra_bpmp *bpmp)  in tegra186_bpmp_setup_channels()  argument
279 	err = tegra186_bpmp_dram_init(bpmp);  in tegra186_bpmp_setup_channels()
281 		err = tegra186_bpmp_sram_init(bpmp);  in tegra186_bpmp_setup_channels()
286 	err = tegra186_bpmp_channel_init(bpmp->tx_channel, bpmp,  in tegra186_bpmp_setup_channels()
287 					 bpmp->soc->channels.cpu_tx.offset);  in tegra186_bpmp_setup_channels()
291 	err = tegra186_bpmp_channel_init(bpmp->rx_channel, bpmp,  in tegra186_bpmp_setup_channels()
292 					 bpmp->soc->channels.cpu_rx.offset);  in tegra186_bpmp_setup_channels()
294 		tegra186_bpmp_channel_cleanup(bpmp->tx_channel);  in tegra186_bpmp_setup_channels()
298 	for (i = 0; i < bpmp->threaded.count; i++) {  in tegra186_bpmp_setup_channels()
299 		unsigned int index = bpmp->soc->channels.thread.offset + i;  in tegra186_bpmp_setup_channels()
301 		err = tegra186_bpmp_channel_init(&bpmp->threaded_channels[i],  in tegra186_bpmp_setup_channels()
302 						 bpmp, index);  in tegra186_bpmp_setup_channels()
308 		tegra186_bpmp_teardown_channels(bpmp);  in tegra186_bpmp_setup_channels()
313 static void tegra186_bpmp_reset_channels(struct tegra_bpmp *bpmp)  in tegra186_bpmp_reset_channels()  argument
318 	tegra186_bpmp_channel_reset(bpmp->tx_channel);  in tegra186_bpmp_reset_channels()
319 	tegra186_bpmp_channel_reset(bpmp->rx_channel);  in tegra186_bpmp_reset_channels()
321 	for (i = 0; i < bpmp->threaded.count; i++)  in tegra186_bpmp_reset_channels()
322 		tegra186_bpmp_channel_reset(&bpmp->threaded_channels[i]);  in tegra186_bpmp_reset_channels()
325 static int tegra186_bpmp_init(struct tegra_bpmp *bpmp)  in tegra186_bpmp_init()  argument
330 	priv = devm_kzalloc(bpmp->dev, sizeof(*priv), GFP_KERNEL);  in tegra186_bpmp_init()
334 	priv->parent = bpmp;  in tegra186_bpmp_init()
335 	bpmp->priv = priv;  in tegra186_bpmp_init()
337 	err = tegra186_bpmp_setup_channels(bpmp);  in tegra186_bpmp_init()
342 	priv->mbox.client.dev = bpmp->dev;  in tegra186_bpmp_init()
350 		dev_err(bpmp->dev, "failed to get HSP mailbox: %d\n", err);  in tegra186_bpmp_init()
351 		tegra186_bpmp_teardown_channels(bpmp);  in tegra186_bpmp_init()
355 	tegra186_bpmp_reset_channels(bpmp);  in tegra186_bpmp_init()
360 static void tegra186_bpmp_deinit(struct tegra_bpmp *bpmp)  in tegra186_bpmp_deinit()  argument
362 	struct tegra186_bpmp *priv = bpmp->priv;  in tegra186_bpmp_deinit()
366 	tegra186_bpmp_teardown_channels(bpmp);  in tegra186_bpmp_deinit()
369 static int tegra186_bpmp_resume(struct tegra_bpmp *bpmp)  in tegra186_bpmp_resume()  argument
371 	tegra186_bpmp_reset_channels(bpmp);  in tegra186_bpmp_resume()