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Date: Tue, 4 Jan 2022 19:11:20 +0800
From: kernel test robot <lkp@...el.com>
To: Neil Armstrong <narmstrong@...libre.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [narmstrong-oxnas:oxnas/v5.10/dma 1/2]
drivers/dma/oxnas_adma.c:374:45: warning: format '%x' expects argument of
type 'unsigned int', but argument 6 has type 'dma_addr_t' {aka 'long long
unsigned int'}
tree: https://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas.git oxnas/v5.10/dma
head: 3bd8beb561b1c68fd95c5b6ff855690dc64eb0f1
commit: 7e67852a5a05099cb1df2d7bfdb39f35c91f2bd0 [1/2] dmaengine: Add Oxford Semiconductor OXNAS DMA Controller
config: ia64-allmodconfig (https://download.01.org/0day-ci/archive/20220104/202201041921.RvnfQhD8-lkp@intel.com/config)
compiler: ia64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas.git/commit/?id=7e67852a5a05099cb1df2d7bfdb39f35c91f2bd0
git remote add narmstrong-oxnas https://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas.git
git fetch --no-tags narmstrong-oxnas oxnas/v5.10/dma
git checkout 7e67852a5a05099cb1df2d7bfdb39f35c91f2bd0
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/dma/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c: In function 'oxnas_dma_start_next':
>> drivers/dma/oxnas_adma.c:374:45: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
374 | dev_dbg(&dmadev->pdev->dev, "ch%d: started req %d from %08x to %08x, %lubytes\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:161:9: note: in expansion of macro '_dynamic_func_call'
161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:9: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:30: note: in expansion of macro 'dev_fmt'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
drivers/dma/oxnas_adma.c:374:17: note: in expansion of macro 'dev_dbg'
374 | dev_dbg(&dmadev->pdev->dev, "ch%d: started req %d from %08x to %08x, %lubytes\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:374:75: note: format string is defined here
374 | dev_dbg(&dmadev->pdev->dev, "ch%d: started req %d from %08x to %08x, %lubytes\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c:374:45: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
374 | dev_dbg(&dmadev->pdev->dev, "ch%d: started req %d from %08x to %08x, %lubytes\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:161:9: note: in expansion of macro '_dynamic_func_call'
161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:9: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:30: note: in expansion of macro 'dev_fmt'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
drivers/dma/oxnas_adma.c:374:17: note: in expansion of macro 'dev_dbg'
374 | dev_dbg(&dmadev->pdev->dev, "ch%d: started req %d from %08x to %08x, %lubytes\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:374:83: note: format string is defined here
374 | dev_dbg(&dmadev->pdev->dev, "ch%d: started req %d from %08x to %08x, %lubytes\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/device.h:15,
from include/linux/platform_device.h:13,
from drivers/dma/oxnas_adma.c:15:
drivers/dma/oxnas_adma.c: In function 'oxnas_dma_prep_slave_sg':
>> drivers/dma/oxnas_adma.c:460:53: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'phys_addr_t' {aka 'long long unsigned int'} [-Wformat=]
460 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
19 | #define dev_fmt(fmt) fmt
| ^~~
drivers/dma/oxnas_adma.c:460:25: note: in expansion of macro 'dev_err'
460 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:460:80: note: format string is defined here
460 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/device.h:15,
from include/linux/platform_device.h:13,
from drivers/dma/oxnas_adma.c:15:
drivers/dma/oxnas_adma.c:472:53: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'phys_addr_t' {aka 'long long unsigned int'} [-Wformat=]
472 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
19 | #define dev_fmt(fmt) fmt
| ^~~
drivers/dma/oxnas_adma.c:472:25: note: in expansion of macro 'dev_err'
472 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:472:80: note: format string is defined here
472 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c:509:37: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
509 | dev_dbg(&dmadev->pdev->dev, "got entry %p (%08x)\n", entry_dev, entry_dev->this_paddr);
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:161:9: note: in expansion of macro '_dynamic_func_call'
161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:9: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:30: note: in expansion of macro 'dev_fmt'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
drivers/dma/oxnas_adma.c:509:9: note: in expansion of macro 'dev_dbg'
509 | dev_dbg(&dmadev->pdev->dev, "got entry %p (%08x)\n", entry_dev, entry_dev->this_paddr);
| ^~~~~~~
drivers/dma/oxnas_adma.c:509:55: note: format string is defined here
509 | dev_dbg(&dmadev->pdev->dev, "got entry %p (%08x)\n", entry_dev, entry_dev->this_paddr);
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c:526:37: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
526 | dev_dbg(&dmadev->pdev->dev, "src = %p (%08x) dst = %p (%08x)\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:161:9: note: in expansion of macro '_dynamic_func_call'
161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:9: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:30: note: in expansion of macro 'dev_fmt'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
drivers/dma/oxnas_adma.c:526:9: note: in expansion of macro 'dev_dbg'
526 | dev_dbg(&dmadev->pdev->dev, "src = %p (%08x) dst = %p (%08x)\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:526:51: note: format string is defined here
526 | dev_dbg(&dmadev->pdev->dev, "src = %p (%08x) dst = %p (%08x)\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c:526:37: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
526 | dev_dbg(&dmadev->pdev->dev, "src = %p (%08x) dst = %p (%08x)\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
--
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/device.h:15,
from include/linux/platform_device.h:13,
from drivers/dma/oxnas_adma.c:15:
drivers/dma/oxnas_adma.c: In function 'oxnas_dma_prep_dma_memcpy':
drivers/dma/oxnas_adma.c:643:45: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
643 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
19 | #define dev_fmt(fmt) fmt
| ^~~
drivers/dma/oxnas_adma.c:643:17: note: in expansion of macro 'dev_err'
643 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:643:72: note: format string is defined here
643 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/device.h:15,
from include/linux/platform_device.h:13,
from drivers/dma/oxnas_adma.c:15:
drivers/dma/oxnas_adma.c:649:45: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
649 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
19 | #define dev_fmt(fmt) fmt
| ^~~
drivers/dma/oxnas_adma.c:649:17: note: in expansion of macro 'dev_err'
649 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:649:72: note: format string is defined here
649 | dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c:659:37: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
659 | dev_dbg(&dmadev->pdev->dev, "preparing memcpy from %08x to %08x, %lubytes (flags %x)\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:161:9: note: in expansion of macro '_dynamic_func_call'
161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:9: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:30: note: in expansion of macro 'dev_fmt'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
drivers/dma/oxnas_adma.c:659:9: note: in expansion of macro 'dev_dbg'
659 | dev_dbg(&dmadev->pdev->dev, "preparing memcpy from %08x to %08x, %lubytes (flags %x)\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:659:63: note: format string is defined here
659 | dev_dbg(&dmadev->pdev->dev, "preparing memcpy from %08x to %08x, %lubytes (flags %x)\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c:659:37: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
659 | dev_dbg(&dmadev->pdev->dev, "preparing memcpy from %08x to %08x, %lubytes (flags %x)\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:161:9: note: in expansion of macro '_dynamic_func_call'
161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:9: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:30: note: in expansion of macro 'dev_fmt'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
drivers/dma/oxnas_adma.c:659:9: note: in expansion of macro 'dev_dbg'
659 | dev_dbg(&dmadev->pdev->dev, "preparing memcpy from %08x to %08x, %lubytes (flags %x)\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:659:71: note: format string is defined here
659 | dev_dbg(&dmadev->pdev->dev, "preparing memcpy from %08x to %08x, %lubytes (flags %x)\n",
| ~~~^
| |
| unsigned int
| %08llx
drivers/dma/oxnas_adma.c: At top level:
>> drivers/dma/oxnas_adma.c:742:17: warning: no previous prototype for 'oxnas_dma_tx_status' [-Wmissing-prototypes]
742 | enum dma_status oxnas_dma_tx_status(struct dma_chan *chan,
| ^~~~~~~~~~~~~~~~~~~
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c: In function 'oxnas_dma_probe':
drivers/dma/oxnas_adma.c:870:37: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
870 | dev_dbg(&pdev->dev, "0x%08x-0x%08x = %d\n",
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:161:9: note: in expansion of macro '_dynamic_func_call'
161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:9: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:30: note: in expansion of macro 'dev_fmt'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
drivers/dma/oxnas_adma.c:870:17: note: in expansion of macro 'dev_dbg'
870 | dev_dbg(&pdev->dev, "0x%08x-0x%08x = %d\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:870:43: note: format string is defined here
870 | dev_dbg(&pdev->dev, "0x%08x-0x%08x = %d\n",
| ~~~^
| |
| unsigned int
| %08llx
In file included from include/linux/printk.h:409,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/dma/oxnas_adma.c:9:
drivers/dma/oxnas_adma.c:870:37: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
870 | dev_dbg(&pdev->dev, "0x%08x-0x%08x = %d\n",
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:129:29: note: in definition of macro '__dynamic_func_call'
129 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:161:9: note: in expansion of macro '_dynamic_func_call'
161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:9: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:30: note: in expansion of macro 'dev_fmt'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
drivers/dma/oxnas_adma.c:870:17: note: in expansion of macro 'dev_dbg'
870 | dev_dbg(&pdev->dev, "0x%08x-0x%08x = %d\n",
| ^~~~~~~
drivers/dma/oxnas_adma.c:870:50: note: format string is defined here
870 | dev_dbg(&pdev->dev, "0x%08x-0x%08x = %d\n",
| ~~~^
| |
| unsigned int
| %08llx
vim +374 drivers/dma/oxnas_adma.c
318
319 static void oxnas_dma_start_next(oxnas_dma_channel_t *channel)
320 {
321 oxnas_dma_device_t *dmadev = channel->dmadev;
322 struct virt_dma_desc *vd = vchan_next_desc(&channel->vc);
323 oxnas_dma_desc_t *desc;
324 unsigned long ctrl_status;
325
326 if (!vd) {
327 channel->cur = NULL;
328 return;
329 }
330
331 list_del(&vd->node);
332
333 channel->cur = desc = container_of(&vd->tx, oxnas_dma_desc_t, vd.tx);
334
335 if (desc->type == OXNAS_DMA_TYPE_SIMPLE) {
336 /* Write the control/status value to the DMAC */
337 writel(desc->ctrl, dmadev->dma_base +
338 DMA_CALC_REG_ADR(channel->id, DMA_CTRL_STATUS));
339
340 /* Ensure control/status word makes it to the DMAC before
341 * we write address/length info
342 */
343 wmb();
344
345 /* Write the source addresses to the DMAC */
346 writel(desc->src_adr & OXNAS_DMA_ADR_MASK, dmadev->dma_base +
347 DMA_CALC_REG_ADR(channel->id, DMA_BASE_SRC_ADR));
348
349 /* Write the destination addresses to the DMAC */
350 writel(desc->dst_adr & OXNAS_DMA_ADR_MASK, dmadev->dma_base +
351 DMA_CALC_REG_ADR(channel->id, DMA_BASE_DST_ADR));
352
353 /* Write the length, with EOT configuration
354 * for the single transfer
355 */
356 writel(desc->len, dmadev->dma_base +
357 DMA_CALC_REG_ADR(channel->id, DMA_BYTE_CNT));
358
359 /* Ensure adr/len info makes it to DMAC before later modifications to
360 * control/status register due to starting the transfer, which happens in
361 * oxnas_dma_start()
362 */
363 wmb();
364
365 /* Setup channel data */
366 atomic_set(&channel->active, 1);
367
368 /* Single transfer mode, so unpause the DMA controller channel */
369 ctrl_status = readl(dmadev->dma_base +
370 DMA_CALC_REG_ADR(channel->id, DMA_CTRL_STATUS));
371 writel(ctrl_status & ~DMA_CTRL_STATUS_PAUSE, dmadev->dma_base +
372 DMA_CALC_REG_ADR(channel->id, DMA_CTRL_STATUS));
373
> 374 dev_dbg(&dmadev->pdev->dev, "ch%d: started req %d from %08x to %08x, %lubytes\n",
375 channel->id, vd->tx.cookie,
376 desc->src_adr, desc->dst_adr,
377 desc->len & OXNAS_DMA_MAX_TRANSFER_LENGTH);
378 } else if (desc->type == OXNAS_DMA_TYPE_SG) {
379 /* Write to the SG-DMA channel's reset register to reset the control
380 * in case the previous SG-DMA transfer failed in some way, thus
381 * leaving the SG-DMA controller hung up part way through processing
382 * its SG list. The reset bits are self-clearing */
383 writel(BIT(DMA_SG_RESETS_CONTROL_BIT), dmadev->sgdma_base +
384 DMA_SG_CALC_REG_ADR(channel->id, DMA_SG_RESETS));
385
386 /* Copy the sg_info structure */
387 memcpy(channel->sg_info, &desc->sg_info, sizeof(oxnas_dma_sg_info_t));
388 wmb();
389
390 /* Write the pointer to the SG info struct into the Request Pointer reg */
391 writel(channel->p_sg_info, dmadev->sgdma_base +
392 DMA_SG_CALC_REG_ADR(channel->id, DMA_SG_REQ_PTR));
393
394 /* Setup channel data */
395 atomic_set(&channel->active, 1);
396
397 /* Start the transfert */
398 writel(BIT(DMA_SG_CONTROL_START_BIT) |
399 BIT(DMA_SG_CONTROL_QUEUING_ENABLE_BIT) |
400 BIT(DMA_SG_CONTROL_HBURST_ENABLE_BIT),
401 dmadev->sgdma_base +
402 DMA_SG_CALC_REG_ADR(channel->id, DMA_SG_CONTROL));
403
404 dev_dbg(&dmadev->pdev->dev, "ch%d: started %d sg req with %d entries\n",
405 channel->id, vd->tx.cookie,
406 desc->entries);
407 }
408 }
409
410 static void oxnas_dma_sched(unsigned long data)
411 {
412 oxnas_dma_device_t *dmadev = (oxnas_dma_device_t*)data;
413 LIST_HEAD(head);
414
415 spin_lock_irq(&dmadev->lock);
416 list_splice_tail_init(&dmadev->pending, &head);
417 spin_unlock_irq(&dmadev->lock);
418
419 while (!list_empty(&head)) {
420 oxnas_dma_channel_t *ch = list_first_entry(&head,
421 oxnas_dma_channel_t, node);
422
423 spin_lock_irq(&ch->vc.lock);
424 list_del_init(&ch->node);
425 oxnas_dma_start_next(ch);
426 spin_unlock_irq(&ch->vc.lock);
427 }
428 }
429
430 static int oxnas_check_address(oxnas_dma_device_t *dmadev, dma_addr_t address)
431 {
432 int i;
433
434 for (i = 0 ; i < dmadev->authorized_types_count ; ++i) {
435 if (address >= dmadev->authorized_types[i].start &&
436 address < dmadev->authorized_types[i].end)
437 return dmadev->authorized_types[i].type;
438 }
439
440 return -1;
441 }
442
443 static struct dma_async_tx_descriptor *oxnas_dma_prep_slave_sg(
444 struct dma_chan *chan, struct scatterlist *sgl, unsigned sglen,
445 enum dma_transfer_direction dir, unsigned long flags, void *context)
446 {
447 oxnas_dma_channel_t *channel = container_of(chan, oxnas_dma_channel_t, vc.chan);
448 oxnas_dma_device_t *dmadev = channel->dmadev;
449 oxnas_dma_desc_t *desc;
450 struct scatterlist *sgent;
451 oxnas_dma_sg_entry_t *entry_mem = NULL, *prev_entry_mem = NULL;
452 oxnas_dma_sg_entry_t *entry_dev = NULL;
453 unsigned i;
454 int src_memory = OXNAS_DMA_DREQ_MEMORY;
455 int dst_memory = OXNAS_DMA_DREQ_MEMORY;
456
457 if (dir == DMA_DEV_TO_MEM) {
458 src_memory = oxnas_check_address(dmadev, channel->cfg.src_addr);
459 if (src_memory == -1) {
> 460 dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
461 channel->cfg.src_addr);
462 return NULL;
463 }
464 if (src_memory == OXNAS_DMA_DREQ_MEMORY) {
465 dev_err(&dmadev->pdev->dev, "In DEV_TO_MEM, src cannot be memory\n");
466 return NULL;
467 }
468 }
469 else if (dir == DMA_MEM_TO_DEV) {
470 dst_memory = oxnas_check_address(dmadev, channel->cfg.dst_addr);
471 if (dst_memory == -1) {
472 dev_err(&dmadev->pdev->dev, "invalid memory address %08x\n",
473 channel->cfg.dst_addr);
474 return NULL;
475 }
476 if (dst_memory == OXNAS_DMA_DREQ_MEMORY) {
477 dev_err(&dmadev->pdev->dev, "In MEM_TO_DEV, dst cannot be memory\n");
478 return NULL;
479 }
480 }
481 else {
482 dev_err(&dmadev->pdev->dev, "invalid direction\n");
483 return NULL;
484 }
485
486 if (atomic_read(&dmadev->free_entries_count) < (sglen + 1)) {
487 dev_err(&dmadev->pdev->dev, "Missing sg entries...\n");
488 return NULL;
489 }
490
491 desc = kzalloc(sizeof(oxnas_dma_desc_t), GFP_KERNEL);
492 if (unlikely(!desc))
493 return NULL;
494 desc->channel = channel;
495
496 INIT_LIST_HEAD(&desc->sg_entries);
497 desc->entries = 0;
498
499 /* Device single entry */
500 entry_dev = list_first_entry_or_null(&dmadev->free_entries,
501 oxnas_dma_sg_entry_t, entry);
502 if (!entry_dev) {
503 dev_err(&dmadev->pdev->dev, "Fatal error: Missing dev sg entry...\n");
504 goto entries_cleanup;
505 }
506 atomic_dec(&dmadev->free_entries_count);
507 list_move(&entry_dev->entry, &desc->sg_entries);
508 ++desc->entries;
509 dev_dbg(&dmadev->pdev->dev, "got entry %p (%08x)\n", entry_dev, entry_dev->this_paddr);
510
511 entry_dev->next_entry = NULL;
512 entry_dev->p_next_entry = 0;
513 entry_dev->data_length = 0; /* Completed by mem sg entries */
514
515 if (dir == DMA_DEV_TO_MEM) {
516 entry_dev->data_addr = channel->cfg.src_addr & OXNAS_DMA_ADR_MASK;
517 desc->sg_info.srcEntries = entry_dev;
518 desc->sg_info.p_srcEntries = entry_dev->this_paddr;
519 dev_dbg(&dmadev->pdev->dev, "src set %p\n", entry_dev);
520 } else if (dir == DMA_MEM_TO_DEV) {
521 entry_dev->data_addr = channel->cfg.dst_addr & OXNAS_DMA_ADR_MASK;
522 desc->sg_info.dstEntries = entry_dev;
523 desc->sg_info.p_dstEntries = entry_dev->this_paddr;
524 dev_dbg(&dmadev->pdev->dev, "dst set %p\n", entry_dev);
525 }
526 dev_dbg(&dmadev->pdev->dev, "src = %p (%08x) dst = %p (%08x)\n",
527 desc->sg_info.srcEntries, desc->sg_info.p_srcEntries,
528 desc->sg_info.dstEntries, desc->sg_info.p_dstEntries);
529
530 /* Memory entries */
531 for_each_sg(sgl, sgent, sglen, i) {
532 entry_mem = list_first_entry_or_null(&dmadev->free_entries,
533 oxnas_dma_sg_entry_t, entry);
534 if (!entry_mem) {
535 dev_err(&dmadev->pdev->dev, "Fatal error: Missing mem sg entries...\n");
536 goto entries_cleanup;
537 }
538 atomic_dec(&dmadev->free_entries_count);
539 list_move(&entry_mem->entry, &desc->sg_entries);
540 ++desc->entries;
541 dev_dbg(&dmadev->pdev->dev, "got entry %p (%08x)\n", entry_mem, entry_mem->this_paddr);
542
543 /* Fill the linked list */
544 if (prev_entry_mem) {
545 prev_entry_mem->next_entry = entry_mem;
546 prev_entry_mem->p_next_entry = entry_mem->this_paddr;
547 }
548 else {
549 if (dir == DMA_DEV_TO_MEM) {
550 desc->sg_info.dstEntries = entry_mem;
551 desc->sg_info.p_dstEntries = entry_mem->this_paddr;
552 dev_dbg(&dmadev->pdev->dev, "src set %p\n", entry_mem);
553 } else if (dir == DMA_MEM_TO_DEV) {
554 desc->sg_info.srcEntries = entry_mem;
555 desc->sg_info.p_srcEntries = entry_mem->this_paddr;
556 dev_dbg(&dmadev->pdev->dev, "dst set %p\n", entry_mem);
557 }
558 dev_dbg(&dmadev->pdev->dev, "src = %p (%08x) dst = %p (%08x)\n",
559 desc->sg_info.srcEntries, desc->sg_info.p_srcEntries,
560 desc->sg_info.dstEntries, desc->sg_info.p_dstEntries);
561 }
562 prev_entry_mem = entry_mem;
563
564 /* Fill the entry from the SG */
565 entry_mem->next_entry = NULL;
566 entry_mem->p_next_entry = 0;
567
568 entry_mem->data_addr = sg_dma_address(sgent) & OXNAS_DMA_ADR_MASK;
569 entry_mem->data_length = sg_dma_len(sgent);
570 dev_dbg(&dmadev->pdev->dev, "sg = %08x len = %d\n",
571 sg_dma_address(sgent),
572 sg_dma_len(sgent));
573
574 /* Add to dev sg length */
575 entry_dev->data_length += sg_dma_len(sgent);
576 }
577 dev_dbg(&dmadev->pdev->dev, "allocated %d sg entries\n", desc->entries);
578
579 desc->sg_info.qualifier = (channel->id << OXNAS_DMA_SG_CHANNEL_BIT) |
580 BIT(OXNAS_DMA_SG_QUALIFIER_BIT);
581 if (dir == DMA_DEV_TO_MEM)
582 desc->sg_info.qualifier |= (2 << OXNAS_DMA_SG_SRC_EOT_BIT);
583 else if (dir == DMA_MEM_TO_DEV)
584 desc->sg_info.qualifier |= (2 << OXNAS_DMA_SG_DST_EOT_BIT);
585
586 desc->sg_info.control = (DMA_CTRL_STATUS_INTERRUPT_ENABLE |
587 DMA_CTRL_STATUS_FAIR_SHARE_ARB |
588 DMA_CTRL_STATUS_INTR_CLEAR_ENABLE);
589 desc->sg_info.control |= (src_memory << DMA_CTRL_STATUS_SRC_DREQ_SHIFT);
590 desc->sg_info.control |= (dst_memory << DMA_CTRL_STATUS_DEST_DREQ_SHIFT);
591
592 if (dir == DMA_DEV_TO_MEM) {
593 desc->sg_info.control |= DMA_CTRL_STATUS_SRC_ADR_MODE;
594 desc->sg_info.control &= ~DMA_CTRL_STATUS_SOURCE_ADDRESS_FIXED;
595 desc->sg_info.control |= DMA_CTRL_STATUS_DEST_ADR_MODE;
596 desc->sg_info.control &= ~DMA_CTRL_STATUS_DESTINATION_ADDRESS_FIXED;
597 } else if (dir == DMA_MEM_TO_DEV) {
598 desc->sg_info.control |= DMA_CTRL_STATUS_SRC_ADR_MODE;
599 desc->sg_info.control &= DMA_CTRL_STATUS_SOURCE_ADDRESS_FIXED;
600 desc->sg_info.control |= DMA_CTRL_STATUS_DEST_ADR_MODE;
601 desc->sg_info.control &= ~DMA_CTRL_STATUS_DESTINATION_ADDRESS_FIXED;
602 }
603 desc->sg_info.control |= DMA_CTRL_STATUS_TRANSFER_MODE_A;
604 desc->sg_info.control |= DMA_CTRL_STATUS_TRANSFER_MODE_B;
605 desc->sg_info.control |= (OXNAS_DMA_A_TO_B << DMA_CTRL_STATUS_DIR_SHIFT);
606
607 desc->sg_info.control |= (OXNAS_DMA_TRANSFER_WIDTH_32BITS << DMA_CTRL_STATUS_SRC_WIDTH_SHIFT);
608 desc->sg_info.control |= (OXNAS_DMA_TRANSFER_WIDTH_32BITS << DMA_CTRL_STATUS_DEST_WIDTH_SHIFT);
609 desc->sg_info.control &= ~DMA_CTRL_STATUS_STARVE_LOW_PRIORITY;
610
611 desc->type = OXNAS_DMA_TYPE_SG;
612
613 return vchan_tx_prep(&channel->vc, &desc->vd, flags);
614
615 entries_cleanup:
616 /* Put back all entries in the free entries... */
617 list_splice_tail_init(&desc->sg_entries, &dmadev->free_entries);
618 atomic_add(desc->entries, &dmadev->free_entries_count);
619 dev_dbg(&dmadev->pdev->dev, "freed %d sg entries\n", desc->entries);
620
621 kfree(desc);
622
623 return NULL;
624 }
625
---
0-DAY CI Kernel Test Service, Intel Corporation
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