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author | Jakub Kicinski <kuba@kernel.org> | 2024-07-04 23:11:03 +0200 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2024-07-04 23:16:11 +0200 |
commit | 76ed626479ebe0227728eff16bb44544ebd98920 (patch) | |
tree | d7c1d6e2146e29cbc3135306e0c87e91eea3bf30 /drivers/mmc/host/moxart-mmc.c | |
parent | Merge branch 'crypto-caam-unembed-net_dev' (diff) | |
parent | Merge tag 'net-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff) | |
download | linux-76ed626479ebe0227728eff16bb44544ebd98920.tar.xz linux-76ed626479ebe0227728eff16bb44544ebd98920.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Conflicts:
drivers/net/phy/aquantia/aquantia.h
219343755eae ("net: phy: aquantia: add missing include guards")
61578f679378 ("net: phy: aquantia: add support for PHY LEDs")
drivers/net/ethernet/wangxun/libwx/wx_hw.c
bd07a9817846 ("net: txgbe: remove separate irq request for MSI and INTx")
b501d261a5b3 ("net: txgbe: add FDIR ATR support")
https://lore.kernel.org/all/20240703112936.483c1975@canb.auug.org.au/
include/linux/mlx5/mlx5_ifc.h
048a403648fc ("net/mlx5: IFC updates for changing max EQs")
99be56171fa9 ("net/mlx5e: SHAMPO, Re-enable HW-GRO")
https://lore.kernel.org/all/20240701133951.6926b2e3@canb.auug.org.au/
Adjacent changes:
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
4130c67cd123 ("wifi: iwlwifi: mvm: check vif for NULL/ERR_PTR before dereference")
3f3126515fbe ("wifi: iwlwifi: mvm: add mvm-specific guard")
include/net/mac80211.h
816c6bec09ed ("wifi: mac80211: fix BSS_CHANGED_UNSOL_BCAST_PROBE_RESP")
5a009b42e041 ("wifi: mac80211: track changes in AP's TPE")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/mmc/host/moxart-mmc.c')
-rw-r--r-- | drivers/mmc/host/moxart-mmc.c | 78 |
1 files changed, 43 insertions, 35 deletions
diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c index 9a5f75163aca..8ede4ce93271 100644 --- a/drivers/mmc/host/moxart-mmc.c +++ b/drivers/mmc/host/moxart-mmc.c @@ -131,10 +131,12 @@ struct moxart_host { struct dma_async_tx_descriptor *tx_desc; struct mmc_host *mmc; struct mmc_request *mrq; + struct scatterlist *cur_sg; struct completion dma_complete; struct completion pio_complete; - struct sg_mapping_iter sg_miter; + u32 num_sg; + u32 data_remain; u32 data_len; u32 fifo_width; u32 timeout; @@ -146,6 +148,35 @@ struct moxart_host { bool is_removed; }; +static inline void moxart_init_sg(struct moxart_host *host, + struct mmc_data *data) +{ + host->cur_sg = data->sg; + host->num_sg = data->sg_len; + host->data_remain = host->cur_sg->length; + + if (host->data_remain > host->data_len) + host->data_remain = host->data_len; +} + +static inline int moxart_next_sg(struct moxart_host *host) +{ + int remain; + struct mmc_data *data = host->mrq->cmd->data; + + host->cur_sg++; + host->num_sg--; + + if (host->num_sg > 0) { + host->data_remain = host->cur_sg->length; + remain = host->data_len - data->bytes_xfered; + if (remain > 0 && remain < host->data_remain) + host->data_remain = remain; + } + + return host->num_sg; +} + static int moxart_wait_for_status(struct moxart_host *host, u32 mask, u32 *status) { @@ -278,29 +309,14 @@ static void moxart_transfer_dma(struct mmc_data *data, struct moxart_host *host) static void moxart_transfer_pio(struct moxart_host *host) { - struct sg_mapping_iter *sgm = &host->sg_miter; struct mmc_data *data = host->mrq->cmd->data; u32 *sgp, len = 0, remain, status; if (host->data_len == data->bytes_xfered) return; - /* - * By updating sgm->consumes this will get a proper pointer into the - * buffer at any time. - */ - if (!sg_miter_next(sgm)) { - /* This shold not happen */ - dev_err(mmc_dev(host->mmc), "ran out of scatterlist prematurely\n"); - data->error = -EINVAL; - complete(&host->pio_complete); - return; - } - sgp = sgm->addr; - remain = sgm->length; - if (remain > host->data_len) - remain = host->data_len; - sgm->consumed = 0; + sgp = sg_virt(host->cur_sg); + remain = host->data_remain; if (data->flags & MMC_DATA_WRITE) { while (remain > 0) { @@ -315,7 +331,6 @@ static void moxart_transfer_pio(struct moxart_host *host) sgp++; len += 4; } - sgm->consumed += len; remain -= len; } @@ -332,22 +347,22 @@ static void moxart_transfer_pio(struct moxart_host *host) sgp++; len += 4; } - sgm->consumed += len; remain -= len; } } - data->bytes_xfered += sgm->consumed; - if (host->data_len == data->bytes_xfered) { + data->bytes_xfered += host->data_remain - remain; + host->data_remain = remain; + + if (host->data_len != data->bytes_xfered) + moxart_next_sg(host); + else complete(&host->pio_complete); - return; - } } static void moxart_prepare_data(struct moxart_host *host) { struct mmc_data *data = host->mrq->cmd->data; - unsigned int flags = SG_MITER_ATOMIC; /* Used from IRQ */ u32 datactrl; int blksz_bits; @@ -358,19 +373,15 @@ static void moxart_prepare_data(struct moxart_host *host) blksz_bits = ffs(data->blksz) - 1; BUG_ON(1 << blksz_bits != data->blksz); + moxart_init_sg(host, data); + datactrl = DCR_DATA_EN | (blksz_bits & DCR_BLK_SIZE); - if (data->flags & MMC_DATA_WRITE) { - flags |= SG_MITER_FROM_SG; + if (data->flags & MMC_DATA_WRITE) datactrl |= DCR_DATA_WRITE; - } else { - flags |= SG_MITER_TO_SG; - } if (moxart_use_dma(host)) datactrl |= DCR_DMA_EN; - else - sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); writel(DCR_DATA_FIFO_RESET, host->base + REG_DATA_CONTROL); writel(MASK_DATA | FIFO_URUN | FIFO_ORUN, host->base + REG_CLEAR); @@ -443,9 +454,6 @@ static void moxart_request(struct mmc_host *mmc, struct mmc_request *mrq) } request_done: - if (!moxart_use_dma(host)) - sg_miter_stop(&host->sg_miter); - spin_unlock_irqrestore(&host->lock, flags); mmc_request_done(host->mmc, mrq); } |