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-rw-r--r--include/linux/clk/sunxi-ng.h35
-rw-r--r--include/linux/mfd/tmio.h5
-rw-r--r--include/linux/mmc/card.h4
-rw-r--r--include/linux/mmc/core.h23
-rw-r--r--include/linux/mmc/host.h60
-rw-r--r--include/trace/events/mmc.h36
6 files changed, 135 insertions, 28 deletions
diff --git a/include/linux/clk/sunxi-ng.h b/include/linux/clk/sunxi-ng.h
new file mode 100644
index 000000000000..990f760f70e5
--- /dev/null
+++ b/include/linux/clk/sunxi-ng.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2017 Chen-Yu Tsai. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_CLK_SUNXI_NG_H_
+#define _LINUX_CLK_SUNXI_NG_H_
+
+#include <linux/errno.h>
+
+#ifdef CONFIG_SUNXI_CCU
+int sunxi_ccu_set_mmc_timing_mode(struct clk *clk, bool new_mode);
+int sunxi_ccu_get_mmc_timing_mode(struct clk *clk);
+#else
+static inline int sunxi_ccu_set_mmc_timing_mode(struct clk *clk,
+ bool new_mode)
+{
+ return -ENOTSUPP;
+}
+
+static inline int sunxi_ccu_get_mmc_timing_mode(struct clk *clk)
+{
+ return -ENOTSUPP;
+}
+#endif
+
+#endif
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 26e8f8c0a6db..b572955e6de6 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -107,6 +107,9 @@
*/
#define TMIO_MMC_CLK_ACTUAL BIT(10)
+/* Some controllers have a CBSY bit */
+#define TMIO_MMC_HAVE_CBSY BIT(11)
+
int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);
@@ -128,6 +131,8 @@ struct tmio_mmc_data {
unsigned int cd_gpio;
int alignment_shift;
dma_addr_t dma_rx_offset;
+ unsigned int max_blk_count;
+ unsigned short max_segs;
void (*set_pwr)(struct platform_device *host, int state);
void (*set_clk_div)(struct platform_device *host, int state);
};
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 46c73e97e61f..279b39008a33 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -29,8 +29,8 @@ struct mmc_csd {
unsigned char structure;
unsigned char mmca_vsn;
unsigned short cmdclass;
- unsigned short tacc_clks;
- unsigned int tacc_ns;
+ unsigned short taac_clks;
+ unsigned int taac_ns;
unsigned int c_size;
unsigned int r2w_factor;
unsigned int max_dtr;
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index a0c63ea28796..927519385482 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -122,11 +122,18 @@ struct mmc_data {
unsigned int timeout_clks; /* data timeout (in clocks) */
unsigned int blksz; /* data block size */
unsigned int blocks; /* number of blocks */
+ unsigned int blk_addr; /* block address */
int error; /* data error */
unsigned int flags;
-#define MMC_DATA_WRITE (1 << 8)
-#define MMC_DATA_READ (1 << 9)
+#define MMC_DATA_WRITE BIT(8)
+#define MMC_DATA_READ BIT(9)
+/* Extra flags used by CQE */
+#define MMC_DATA_QBR BIT(10) /* CQE queue barrier*/
+#define MMC_DATA_PRIO BIT(11) /* CQE high priority */
+#define MMC_DATA_REL_WR BIT(12) /* Reliable write */
+#define MMC_DATA_DAT_TAG BIT(13) /* Tag request */
+#define MMC_DATA_FORCED_PRG BIT(14) /* Forced programming */
unsigned int bytes_xfered;
@@ -149,18 +156,22 @@ struct mmc_request {
struct completion completion;
struct completion cmd_completion;
void (*done)(struct mmc_request *);/* completion function */
+ /*
+ * Notify uppers layers (e.g. mmc block driver) that recovery is needed
+ * due to an error associated with the mmc_request. Currently used only
+ * by CQE.
+ */
+ void (*recovery_notifier)(struct mmc_request *);
struct mmc_host *host;
/* Allow other commands during this ongoing data transfer or busy wait */
bool cap_cmd_during_tfr;
+
+ int tag;
};
struct mmc_card;
-struct mmc_async_req;
-struct mmc_async_req *mmc_start_areq(struct mmc_host *host,
- struct mmc_async_req *areq,
- enum mmc_blk_status *ret_stat);
void mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq);
int mmc_wait_for_cmd(struct mmc_host *host, struct mmc_command *cmd,
int retries);
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index ebd1cebbef0c..f3f2d07feb2a 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -162,6 +162,50 @@ struct mmc_host_ops {
unsigned int direction, int blk_size);
};
+struct mmc_cqe_ops {
+ /* Allocate resources, and make the CQE operational */
+ int (*cqe_enable)(struct mmc_host *host, struct mmc_card *card);
+ /* Free resources, and make the CQE non-operational */
+ void (*cqe_disable)(struct mmc_host *host);
+ /*
+ * Issue a read, write or DCMD request to the CQE. Also deal with the
+ * effect of ->cqe_off().
+ */
+ int (*cqe_request)(struct mmc_host *host, struct mmc_request *mrq);
+ /* Free resources (e.g. DMA mapping) associated with the request */
+ void (*cqe_post_req)(struct mmc_host *host, struct mmc_request *mrq);
+ /*
+ * Prepare the CQE and host controller to accept non-CQ commands. There
+ * is no corresponding ->cqe_on(), instead ->cqe_request() is required
+ * to deal with that.
+ */
+ void (*cqe_off)(struct mmc_host *host);
+ /*
+ * Wait for all CQE tasks to complete. Return an error if recovery
+ * becomes necessary.
+ */
+ int (*cqe_wait_for_idle)(struct mmc_host *host);
+ /*
+ * Notify CQE that a request has timed out. Return false if the request
+ * completed or true if a timeout happened in which case indicate if
+ * recovery is needed.
+ */
+ bool (*cqe_timeout)(struct mmc_host *host, struct mmc_request *mrq,
+ bool *recovery_needed);
+ /*
+ * Stop all CQE activity and prepare the CQE and host controller to
+ * accept recovery commands.
+ */
+ void (*cqe_recovery_start)(struct mmc_host *host);
+ /*
+ * Clear the queue and call mmc_cqe_request_done() on all requests.
+ * Requests that errored will have the error set on the mmc_request
+ * (data->error or cmd->error for DCMD). Requests that did not error
+ * will have zero data bytes transferred.
+ */
+ void (*cqe_recovery_finish)(struct mmc_host *host);
+};
+
struct mmc_async_req {
/* active mmc request */
struct mmc_request *mrq;
@@ -291,10 +335,6 @@ struct mmc_host {
MMC_CAP2_HS200_1_2V_SDR)
#define MMC_CAP2_CD_ACTIVE_HIGH (1 << 10) /* Card-detect signal active high */
#define MMC_CAP2_RO_ACTIVE_HIGH (1 << 11) /* Write-protect signal active high */
-#define MMC_CAP2_PACKED_RD (1 << 12) /* Allow packed read */
-#define MMC_CAP2_PACKED_WR (1 << 13) /* Allow packed write */
-#define MMC_CAP2_PACKED_CMD (MMC_CAP2_PACKED_RD | \
- MMC_CAP2_PACKED_WR)
#define MMC_CAP2_NO_PRESCAN_POWERUP (1 << 14) /* Don't power up before scan */
#define MMC_CAP2_HS400_1_8V (1 << 15) /* Can support HS400 1.8V */
#define MMC_CAP2_HS400_1_2V (1 << 16) /* Can support HS400 1.2V */
@@ -307,6 +347,8 @@ struct mmc_host {
#define MMC_CAP2_HS400_ES (1 << 20) /* Host supports enhanced strobe */
#define MMC_CAP2_NO_SD (1 << 21) /* Do not send SD commands during initialization */
#define MMC_CAP2_NO_MMC (1 << 22) /* Do not send (e)MMC commands during initialization */
+#define MMC_CAP2_CQE (1 << 23) /* Has eMMC command queue engine */
+#define MMC_CAP2_CQE_DCMD (1 << 24) /* CQE can issue a direct command */
mmc_pm_flag_t pm_caps; /* supported pm features */
@@ -328,9 +370,6 @@ struct mmc_host {
unsigned int use_spi_crc:1;
unsigned int claimed:1; /* host exclusively claimed */
unsigned int bus_dead:1; /* bus has been released */
-#ifdef CONFIG_MMC_DEBUG
- unsigned int removed:1; /* host is being removed */
-#endif
unsigned int can_retune:1; /* re-tuning can be used */
unsigned int doing_retune:1; /* re-tuning in progress */
unsigned int retune_now:1; /* do re-tuning at next req */
@@ -393,6 +432,13 @@ struct mmc_host {
int dsr_req; /* DSR value is valid */
u32 dsr; /* optional driver stage (DSR) value */
+ /* Command Queue Engine (CQE) support */
+ const struct mmc_cqe_ops *cqe_ops;
+ void *cqe_private;
+ int cqe_qdepth;
+ bool cqe_enabled;
+ bool cqe_on;
+
unsigned long private[0] ____cacheline_aligned;
};
diff --git a/include/trace/events/mmc.h b/include/trace/events/mmc.h
index a72f9b94c80b..f30a99ac65b6 100644
--- a/include/trace/events/mmc.h
+++ b/include/trace/events/mmc.h
@@ -29,8 +29,10 @@ TRACE_EVENT(mmc_request_start,
__field(unsigned int, sbc_flags)
__field(unsigned int, sbc_retries)
__field(unsigned int, blocks)
+ __field(unsigned int, blk_addr)
__field(unsigned int, blksz)
__field(unsigned int, data_flags)
+ __field(int, tag)
__field(unsigned int, can_retune)
__field(unsigned int, doing_retune)
__field(unsigned int, retune_now)
@@ -42,10 +44,10 @@ TRACE_EVENT(mmc_request_start,
),
TP_fast_assign(
- __entry->cmd_opcode = mrq->cmd->opcode;
- __entry->cmd_arg = mrq->cmd->arg;
- __entry->cmd_flags = mrq->cmd->flags;
- __entry->cmd_retries = mrq->cmd->retries;
+ __entry->cmd_opcode = mrq->cmd ? mrq->cmd->opcode : 0;
+ __entry->cmd_arg = mrq->cmd ? mrq->cmd->arg : 0;
+ __entry->cmd_flags = mrq->cmd ? mrq->cmd->flags : 0;
+ __entry->cmd_retries = mrq->cmd ? mrq->cmd->retries : 0;
__entry->stop_opcode = mrq->stop ? mrq->stop->opcode : 0;
__entry->stop_arg = mrq->stop ? mrq->stop->arg : 0;
__entry->stop_flags = mrq->stop ? mrq->stop->flags : 0;
@@ -56,7 +58,9 @@ TRACE_EVENT(mmc_request_start,
__entry->sbc_retries = mrq->sbc ? mrq->sbc->retries : 0;
__entry->blksz = mrq->data ? mrq->data->blksz : 0;
__entry->blocks = mrq->data ? mrq->data->blocks : 0;
+ __entry->blk_addr = mrq->data ? mrq->data->blk_addr : 0;
__entry->data_flags = mrq->data ? mrq->data->flags : 0;
+ __entry->tag = mrq->tag;
__entry->can_retune = host->can_retune;
__entry->doing_retune = host->doing_retune;
__entry->retune_now = host->retune_now;
@@ -71,8 +75,8 @@ TRACE_EVENT(mmc_request_start,
"cmd_opcode=%u cmd_arg=0x%x cmd_flags=0x%x cmd_retries=%u "
"stop_opcode=%u stop_arg=0x%x stop_flags=0x%x stop_retries=%u "
"sbc_opcode=%u sbc_arg=0x%x sbc_flags=0x%x sbc_retires=%u "
- "blocks=%u block_size=%u data_flags=0x%x "
- "can_retune=%u doing_retune=%u retune_now=%u "
+ "blocks=%u block_size=%u blk_addr=%u data_flags=0x%x "
+ "tag=%d can_retune=%u doing_retune=%u retune_now=%u "
"need_retune=%d hold_retune=%d retune_period=%u",
__get_str(name), __entry->mrq,
__entry->cmd_opcode, __entry->cmd_arg,
@@ -81,7 +85,8 @@ TRACE_EVENT(mmc_request_start,
__entry->stop_flags, __entry->stop_retries,
__entry->sbc_opcode, __entry->sbc_arg,
__entry->sbc_flags, __entry->sbc_retries,
- __entry->blocks, __entry->blksz, __entry->data_flags,
+ __entry->blocks, __entry->blk_addr,
+ __entry->blksz, __entry->data_flags, __entry->tag,
__entry->can_retune, __entry->doing_retune,
__entry->retune_now, __entry->need_retune,
__entry->hold_retune, __entry->retune_period)
@@ -108,6 +113,7 @@ TRACE_EVENT(mmc_request_done,
__field(unsigned int, sbc_retries)
__field(unsigned int, bytes_xfered)
__field(int, data_err)
+ __field(int, tag)
__field(unsigned int, can_retune)
__field(unsigned int, doing_retune)
__field(unsigned int, retune_now)
@@ -119,10 +125,13 @@ TRACE_EVENT(mmc_request_done,
),
TP_fast_assign(
- __entry->cmd_opcode = mrq->cmd->opcode;
- __entry->cmd_err = mrq->cmd->error;
- memcpy(__entry->cmd_resp, mrq->cmd->resp, 4);
- __entry->cmd_retries = mrq->cmd->retries;
+ __entry->cmd_opcode = mrq->cmd ? mrq->cmd->opcode : 0;
+ __entry->cmd_err = mrq->cmd ? mrq->cmd->error : 0;
+ __entry->cmd_resp[0] = mrq->cmd ? mrq->cmd->resp[0] : 0;
+ __entry->cmd_resp[1] = mrq->cmd ? mrq->cmd->resp[1] : 0;
+ __entry->cmd_resp[2] = mrq->cmd ? mrq->cmd->resp[2] : 0;
+ __entry->cmd_resp[3] = mrq->cmd ? mrq->cmd->resp[3] : 0;
+ __entry->cmd_retries = mrq->cmd ? mrq->cmd->retries : 0;
__entry->stop_opcode = mrq->stop ? mrq->stop->opcode : 0;
__entry->stop_err = mrq->stop ? mrq->stop->error : 0;
__entry->stop_resp[0] = mrq->stop ? mrq->stop->resp[0] : 0;
@@ -139,6 +148,7 @@ TRACE_EVENT(mmc_request_done,
__entry->sbc_retries = mrq->sbc ? mrq->sbc->retries : 0;
__entry->bytes_xfered = mrq->data ? mrq->data->bytes_xfered : 0;
__entry->data_err = mrq->data ? mrq->data->error : 0;
+ __entry->tag = mrq->tag;
__entry->can_retune = host->can_retune;
__entry->doing_retune = host->doing_retune;
__entry->retune_now = host->retune_now;
@@ -154,7 +164,7 @@ TRACE_EVENT(mmc_request_done,
"cmd_retries=%u stop_opcode=%u stop_err=%d "
"stop_resp=0x%x 0x%x 0x%x 0x%x stop_retries=%u "
"sbc_opcode=%u sbc_err=%d sbc_resp=0x%x 0x%x 0x%x 0x%x "
- "sbc_retries=%u bytes_xfered=%u data_err=%d "
+ "sbc_retries=%u bytes_xfered=%u data_err=%d tag=%d "
"can_retune=%u doing_retune=%u retune_now=%u need_retune=%d "
"hold_retune=%d retune_period=%u",
__get_str(name), __entry->mrq,
@@ -170,7 +180,7 @@ TRACE_EVENT(mmc_request_done,
__entry->sbc_resp[0], __entry->sbc_resp[1],
__entry->sbc_resp[2], __entry->sbc_resp[3],
__entry->sbc_retries,
- __entry->bytes_xfered, __entry->data_err,
+ __entry->bytes_xfered, __entry->data_err, __entry->tag,
__entry->can_retune, __entry->doing_retune,
__entry->retune_now, __entry->need_retune,
__entry->hold_retune, __entry->retune_period)
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-17 05:59:24 +0000