From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/sound/soc/sh/rcar/dma.c | 241 ++++++++++++++++++++++++++--------------- 1 file changed, 153 insertions(+), 88 deletions(-) (limited to 'kernel/sound/soc/sh/rcar/dma.c') diff --git a/kernel/sound/soc/sh/rcar/dma.c b/kernel/sound/soc/sh/rcar/dma.c index 144308f15..5d084d040 100644 --- a/kernel/sound/soc/sh/rcar/dma.c +++ b/kernel/sound/soc/sh/rcar/dma.c @@ -27,16 +27,26 @@ struct rsnd_dma_ctrl { int dmapp_num; }; +struct rsnd_dma_ops { + char *name; + void (*start)(struct rsnd_dai_stream *io, struct rsnd_dma *dma); + void (*stop)(struct rsnd_dai_stream *io, struct rsnd_dma *dma); + int (*init)(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id, + struct rsnd_mod *mod_from, struct rsnd_mod *mod_to); + void (*quit)(struct rsnd_dai_stream *io, struct rsnd_dma *dma); +}; + #define rsnd_priv_to_dmac(p) ((struct rsnd_dma_ctrl *)(p)->dma) /* * Audio DMAC */ -static void rsnd_dmaen_complete(void *data) +static void __rsnd_dmaen_complete(struct rsnd_mod *mod, + struct rsnd_dai_stream *io) { - struct rsnd_dma *dma = (struct rsnd_dma *)data; - struct rsnd_mod *mod = rsnd_dma_to_mod(dma); - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + bool elapsed = false; + unsigned long flags; /* * Renesas sound Gen1 needs 1 DMAC, @@ -49,23 +59,36 @@ static void rsnd_dmaen_complete(void *data) * rsnd_dai_pointer_update() will be called twice, * ant it will breaks io->byte_pos */ + spin_lock_irqsave(&priv->lock, flags); + + if (rsnd_io_is_working(io)) + elapsed = rsnd_dai_pointer_update(io, io->byte_per_period); + + spin_unlock_irqrestore(&priv->lock, flags); + + if (elapsed) + rsnd_dai_period_elapsed(io); +} + +static void rsnd_dmaen_complete(void *data) +{ + struct rsnd_mod *mod = data; - rsnd_dai_pointer_update(io, io->byte_per_period); + rsnd_mod_interrupt(mod, __rsnd_dmaen_complete); } -static void rsnd_dmaen_stop(struct rsnd_dma *dma) +static void rsnd_dmaen_stop(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); dmaengine_terminate_all(dmaen->chan); } -static void rsnd_dmaen_start(struct rsnd_dma *dma) +static void rsnd_dmaen_start(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); struct rsnd_mod *mod = rsnd_dma_to_mod(dma); struct rsnd_priv *priv = rsnd_mod_to_priv(mod); - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); struct snd_pcm_substream *substream = io->substream; struct device *dev = rsnd_priv_to_dev(priv); struct dma_async_tx_descriptor *desc; @@ -84,7 +107,7 @@ static void rsnd_dmaen_start(struct rsnd_dma *dma) } desc->callback = rsnd_dmaen_complete; - desc->callback_param = dma; + desc->callback_param = mod; if (dmaengine_submit(desc) < 0) { dev_err(dev, "dmaengine_submit() fail\n"); @@ -115,7 +138,8 @@ struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node, return chan; } -static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_mod *mod_from, +static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_dai_stream *io, + struct rsnd_mod *mod_from, struct rsnd_mod *mod_to) { if ((!mod_from && !mod_to) || @@ -123,19 +147,19 @@ static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_mod *mod_from, return NULL; if (mod_from) - return rsnd_mod_dma_req(mod_from); + return rsnd_mod_dma_req(io, mod_from); else - return rsnd_mod_dma_req(mod_to); + return rsnd_mod_dma_req(io, mod_to); } -static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, +static int rsnd_dmaen_init(struct rsnd_dai_stream *io, + struct rsnd_dma *dma, int id, struct rsnd_mod *mod_from, struct rsnd_mod *mod_to) { struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); + struct rsnd_priv *priv = rsnd_io_to_priv(io); struct device *dev = rsnd_priv_to_dev(priv); struct dma_slave_config cfg = {}; - struct rsnd_mod *mod = rsnd_dma_to_mod(dma); - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); int is_play = rsnd_io_is_play(io); int ret; @@ -145,7 +169,7 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, } if (dev->of_node) { - dmaen->chan = rsnd_dmaen_request_channel(mod_from, mod_to); + dmaen->chan = rsnd_dmaen_request_channel(io, mod_from, mod_to); } else { dma_cap_mask_t mask; @@ -153,7 +177,7 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, dma_cap_set(DMA_SLAVE, mask); dmaen->chan = dma_request_channel(mask, shdma_chan_filter, - (void *)id); + (void *)(uintptr_t)id); } if (IS_ERR_OR_NULL(dmaen->chan)) { dmaen->chan = NULL; @@ -167,7 +191,8 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - dev_dbg(dev, "dma : %pad -> %pad\n", + dev_dbg(dev, "%s %pad -> %pad\n", + dma->ops->name, &cfg.src_addr, &cfg.dst_addr); ret = dmaengine_slave_config(dmaen->chan, &cfg); @@ -177,7 +202,7 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, return 0; rsnd_dma_init_err: - rsnd_dma_quit(dma); + rsnd_dma_quit(io, dma); rsnd_dma_channel_err: /* @@ -189,7 +214,7 @@ rsnd_dma_channel_err: return -EAGAIN; } -static void rsnd_dmaen_quit(struct rsnd_dma *dma) +static void rsnd_dmaen_quit(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); @@ -200,6 +225,7 @@ static void rsnd_dmaen_quit(struct rsnd_dma *dma) } static struct rsnd_dma_ops rsnd_dmaen_ops = { + .name = "audmac", .start = rsnd_dmaen_start, .stop = rsnd_dmaen_stop, .init = rsnd_dmaen_init, @@ -238,9 +264,9 @@ static const u8 gen2_id_table_cmd[] = { 0x38, /* SCU_CMD1 */ }; -static u32 rsnd_dmapp_get_id(struct rsnd_mod *mod) +static u32 rsnd_dmapp_get_id(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) { - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io); struct rsnd_mod *src = rsnd_io_to_mod_src(io); struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); @@ -268,11 +294,12 @@ static u32 rsnd_dmapp_get_id(struct rsnd_mod *mod) return entry[id]; } -static u32 rsnd_dmapp_get_chcr(struct rsnd_mod *mod_from, +static u32 rsnd_dmapp_get_chcr(struct rsnd_dai_stream *io, + struct rsnd_mod *mod_from, struct rsnd_mod *mod_to) { - return (rsnd_dmapp_get_id(mod_from) << 24) + - (rsnd_dmapp_get_id(mod_to) << 16); + return (rsnd_dmapp_get_id(io, mod_from) << 24) + + (rsnd_dmapp_get_id(io, mod_to) << 16); } #define rsnd_dmapp_addr(dmac, dma, reg) \ @@ -299,7 +326,7 @@ static u32 rsnd_dmapp_read(struct rsnd_dma *dma, u32 reg) return ioread32(rsnd_dmapp_addr(dmac, dma, reg)); } -static void rsnd_dmapp_stop(struct rsnd_dma *dma) +static void rsnd_dmapp_stop(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { int i; @@ -312,7 +339,7 @@ static void rsnd_dmapp_stop(struct rsnd_dma *dma) } } -static void rsnd_dmapp_start(struct rsnd_dma *dma) +static void rsnd_dmapp_start(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma); @@ -321,19 +348,21 @@ static void rsnd_dmapp_start(struct rsnd_dma *dma) rsnd_dmapp_write(dma, dmapp->chcr, PDMACHCR); } -static int rsnd_dmapp_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, +static int rsnd_dmapp_init(struct rsnd_dai_stream *io, + struct rsnd_dma *dma, int id, struct rsnd_mod *mod_from, struct rsnd_mod *mod_to) { struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma); + struct rsnd_priv *priv = rsnd_io_to_priv(io); struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv); struct device *dev = rsnd_priv_to_dev(priv); dmapp->dmapp_id = dmac->dmapp_num; - dmapp->chcr = rsnd_dmapp_get_chcr(mod_from, mod_to) | PDMACHCR_DE; + dmapp->chcr = rsnd_dmapp_get_chcr(io, mod_from, mod_to) | PDMACHCR_DE; dmac->dmapp_num++; - rsnd_dmapp_stop(dma); + rsnd_dmapp_stop(io, dma); dev_dbg(dev, "id/src/dst/chcr = %d/%pad/%pad/%08x\n", dmapp->dmapp_id, &dma->src_addr, &dma->dst_addr, dmapp->chcr); @@ -342,6 +371,7 @@ static int rsnd_dmapp_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, } static struct rsnd_dma_ops rsnd_dmapp_ops = { + .name = "audmac-pp", .start = rsnd_dmapp_start, .stop = rsnd_dmapp_stop, .init = rsnd_dmapp_init, @@ -386,17 +416,19 @@ static struct rsnd_dma_ops rsnd_dmapp_ops = { #define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i)) static dma_addr_t -rsnd_gen2_dma_addr(struct rsnd_priv *priv, +rsnd_gen2_dma_addr(struct rsnd_dai_stream *io, struct rsnd_mod *mod, int is_play, int is_from) { + struct rsnd_priv *priv = rsnd_io_to_priv(io); struct device *dev = rsnd_priv_to_dev(priv); - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); phys_addr_t ssi_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SSI); phys_addr_t src_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SCU); int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod); int use_src = !!rsnd_io_to_mod_src(io); - int use_dvc = !!rsnd_io_to_mod_dvc(io); + int use_cmd = !!rsnd_io_to_mod_dvc(io) || + !!rsnd_io_to_mod_mix(io) || + !!rsnd_io_to_mod_ctu(io); int id = rsnd_mod_id(mod); struct dma_addr { dma_addr_t out_addr; @@ -434,22 +466,24 @@ rsnd_gen2_dma_addr(struct rsnd_priv *priv, }; /* it shouldn't happen */ - if (use_dvc && !use_src) + if (use_cmd && !use_src) dev_err(dev, "DVC is selected without SRC\n"); /* use SSIU or SSI ? */ - if (is_ssi && rsnd_ssi_use_busif(mod)) + if (is_ssi && rsnd_ssi_use_busif(io)) is_ssi++; return (is_from) ? - dma_addrs[is_ssi][is_play][use_src + use_dvc].out_addr : - dma_addrs[is_ssi][is_play][use_src + use_dvc].in_addr; + dma_addrs[is_ssi][is_play][use_src + use_cmd].out_addr : + dma_addrs[is_ssi][is_play][use_src + use_cmd].in_addr; } -static dma_addr_t rsnd_dma_addr(struct rsnd_priv *priv, +static dma_addr_t rsnd_dma_addr(struct rsnd_dai_stream *io, struct rsnd_mod *mod, int is_play, int is_from) { + struct rsnd_priv *priv = rsnd_io_to_priv(io); + /* * gen1 uses default DMA addr */ @@ -459,82 +493,108 @@ static dma_addr_t rsnd_dma_addr(struct rsnd_priv *priv, if (!mod) return 0; - return rsnd_gen2_dma_addr(priv, mod, is_play, is_from); + return rsnd_gen2_dma_addr(io, mod, is_play, is_from); } -#define MOD_MAX 4 /* MEM/SSI/SRC/DVC */ +#define MOD_MAX (RSND_MOD_MAX + 1) /* +Memory */ static void rsnd_dma_of_path(struct rsnd_dma *dma, + struct rsnd_dai_stream *io, int is_play, struct rsnd_mod **mod_from, struct rsnd_mod **mod_to) { struct rsnd_mod *this = rsnd_dma_to_mod(dma); - struct rsnd_dai_stream *io = rsnd_mod_to_io(this); struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io); struct rsnd_mod *src = rsnd_io_to_mod_src(io); + struct rsnd_mod *ctu = rsnd_io_to_mod_ctu(io); + struct rsnd_mod *mix = rsnd_io_to_mod_mix(io); struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); struct rsnd_mod *mod[MOD_MAX]; - int i, index; + struct rsnd_mod *mod_start, *mod_end; + struct rsnd_priv *priv = rsnd_mod_to_priv(this); + struct device *dev = rsnd_priv_to_dev(priv); + int nr, i; + if (!ssi) + return; - for (i = 0; i < MOD_MAX; i++) + nr = 0; + for (i = 0; i < MOD_MAX; i++) { mod[i] = NULL; + nr += !!rsnd_io_to_mod(io, i); + } /* - * in play case... + * [S] -*-> [E] + * [S] -*-> SRC -o-> [E] + * [S] -*-> SRC -> DVC -o-> [E] + * [S] -*-> SRC -> CTU -> MIX -> DVC -o-> [E] + * + * playback [S] = mem + * [E] = SSI * - * src -> dst + * capture [S] = SSI + * [E] = mem * - * mem -> SSI - * mem -> SRC -> SSI - * mem -> SRC -> DVC -> SSI + * -*-> Audio DMAC + * -o-> Audio DMAC peri peri */ - mod[0] = NULL; /* for "mem" */ - index = 1; - for (i = 1; i < MOD_MAX; i++) { - if (!src) { - mod[i] = ssi; - } else if (!dvc) { - mod[i] = src; - src = NULL; - } else { - if ((!is_play) && (this == src)) - this = dvc; + mod_start = (is_play) ? NULL : ssi; + mod_end = (is_play) ? ssi : NULL; - mod[i] = (is_play) ? src : dvc; - i++; - mod[i] = (is_play) ? dvc : src; + mod[0] = mod_start; + for (i = 1; i < nr; i++) { + if (src) { + mod[i] = src; src = NULL; + } else if (ctu) { + mod[i] = ctu; + ctu = NULL; + } else if (mix) { + mod[i] = mix; + mix = NULL; + } else if (dvc) { + mod[i] = dvc; dvc = NULL; } - - if (mod[i] == this) - index = i; - - if (mod[i] == ssi) - break; } + mod[i] = mod_end; - if (is_play) { - *mod_from = mod[index - 1]; - *mod_to = mod[index]; + /* + * | SSI | SRC | + * -------------+-----+-----+ + * is_play | o | * | + * !is_play | * | o | + */ + if ((this == ssi) == (is_play)) { + *mod_from = mod[nr - 1]; + *mod_to = mod[nr]; } else { - *mod_from = mod[index]; - *mod_to = mod[index - 1]; + *mod_from = mod[0]; + *mod_to = mod[1]; + } + + dev_dbg(dev, "module connection (this is %s[%d])\n", + rsnd_mod_name(this), rsnd_mod_id(this)); + for (i = 0; i <= nr; i++) { + dev_dbg(dev, " %s[%d]%s\n", + rsnd_mod_name(mod[i]), rsnd_mod_id(mod[i]), + (mod[i] == *mod_from) ? " from" : + (mod[i] == *mod_to) ? " to" : ""); } } -void rsnd_dma_stop(struct rsnd_dma *dma) +void rsnd_dma_stop(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { - dma->ops->stop(dma); + dma->ops->stop(io, dma); } -void rsnd_dma_start(struct rsnd_dma *dma) +void rsnd_dma_start(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { - dma->ops->start(dma); + dma->ops->start(io, dma); } -void rsnd_dma_quit(struct rsnd_dma *dma) +void rsnd_dma_quit(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_mod *mod = rsnd_dma_to_mod(dma); struct rsnd_priv *priv = rsnd_mod_to_priv(mod); @@ -543,16 +603,16 @@ void rsnd_dma_quit(struct rsnd_dma *dma) if (!dmac) return; - dma->ops->quit(dma); + dma->ops->quit(io, dma); } -int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id) +int rsnd_dma_init(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id) { - struct rsnd_mod *mod = rsnd_dma_to_mod(dma); - struct rsnd_mod *mod_from; - struct rsnd_mod *mod_to; - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); + struct rsnd_mod *mod_from = NULL; + struct rsnd_mod *mod_to = NULL; + struct rsnd_priv *priv = rsnd_io_to_priv(io); struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv); + struct device *dev = rsnd_priv_to_dev(priv); int is_play = rsnd_io_is_play(io); /* @@ -564,10 +624,10 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id) if (!dmac) return -EAGAIN; - rsnd_dma_of_path(dma, is_play, &mod_from, &mod_to); + rsnd_dma_of_path(dma, io, is_play, &mod_from, &mod_to); - dma->src_addr = rsnd_dma_addr(priv, mod_from, is_play, 1); - dma->dst_addr = rsnd_dma_addr(priv, mod_to, is_play, 0); + dma->src_addr = rsnd_dma_addr(io, mod_from, is_play, 1); + dma->dst_addr = rsnd_dma_addr(io, mod_to, is_play, 0); /* for Gen2 */ if (mod_from && mod_to) @@ -579,7 +639,12 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id) if (rsnd_is_gen1(priv)) dma->ops = &rsnd_dmaen_ops; - return dma->ops->init(priv, dma, id, mod_from, mod_to); + dev_dbg(dev, "%s %s[%d] -> %s[%d]\n", + dma->ops->name, + rsnd_mod_name(mod_from), rsnd_mod_id(mod_from), + rsnd_mod_name(mod_to), rsnd_mod_id(mod_to)); + + return dma->ops->init(io, dma, id, mod_from, mod_to); } int rsnd_dma_probe(struct platform_device *pdev, -- cgit 1.2.3-korg