* Add "good DMA drives" hack for icside to ide-dma.c::ide_find_dma_mode()
(in the long-term it should be either removed or generalized for all hosts).
* Use ide_tune_dma() in icside.c::icside_dma_check().
This results in the following changes in behavior:
- pre-EIDE SWDMA modes are now also respected
- drive->autodma is checked instead of hwif->autodma
(doesn't really matter as icside sets both to "1")
* Make ide-dma.c::__ide_dma_good_drive() static and drop "__" prefix.
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* All other implementations of ->speedproc return zero on success
and non-zero on failure. Currently it doesn't matter for icside host
driver and isn't a bug per se since:
- ide_set_xfer_rate() return value is ignored by all IDE core users
- icside doesn't (yet!) use ide_tune_dma() in icside_dma_check()
but sooner or later we will need to fix anyway - so lets do it now.
* icside_set_speed() happily accepts unsupported transfer modes which
results in drive->drive_data being set to the maximum value (480)
and drive->current_speed being set to the unsupported transfer mode.
Fix it.
v2:
* The initial version of the patch was broken because it didn't take into
the account (the different from usual) return values of icside_set_speed()
(Noticed by Russell).
v3:
* Remove no longer needed initialization/checking of cycle_time
(Noticed by Sergei).
* No need to set drive->drive_data if DMA is not going to be used
(Noticed by Sergei).
* Remove incorrect setting of drive->current_speed
(Noticed by Sergei).
* Move ide_config_drive_speed() at the end of icside_set_speed().
v4:
* If DMA mode is not found in icside_dma_check() then just return "-1" and
don't call icside_set_speed() (v3 got it wrong and "1" was returned instead).
v5:
* Return "-1"/"0" in icside_set_speed() instead of icside_dma_check() return
value (just like it was before this patch).
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Move ide_rate_filter() calls from host drivers to IDE core.
* Make ide_rate_filter() static.
* Make 'speed' argument of ->speedproc const.
v2:
* Fix it8213_tune_chipset() comment.
There should be no functionality changes caused by this patch.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Fix icside, cris-ide, au1xxx-ide, amd74xx, via82cxxx and pmac host drivers
to use ide_rate_filter().
This results in the following modes (from user requests) being clipped down:
- invalid modes (values 0x46-0xFF) [ for all hosts ]
- unsupported by a host UDMA modes [ for hosts which support UDMA]
- all UDMA modes and MWDMA3-4 modes [ for hosts which don't support UDMA ]
- invalid modes (values 0x25-0x39) [ for hosts which don't support UDMA ]
* Host driver specific changes in behavior:
icside:
- no change
cris-ide
- clip unsupported UDMA3-6 modes down
- fix BUG() on trying to set unsupported UDMA3-6 modes
au1xxx-ide/pmac
- clip unsupported UDMA modes down
amd74xx/via82cxxx
- clip unsupported UDMA modes down
- fix random PIO timings being set for unsupported/invalid modes
- fix unsupported/invalid modes being set on the device
* While at it remove no longer needed checks from pmac.c driver.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Is this a bug? In original verison memset cleared sizeof(state) bytes
instead of sizeof(*state). If it was intentional then this patch is invalid.
If not intentional -> valid :) Please review.
Bart: Yes, it is a bug so this patch is a valid bugfix. :-)
drivers/ide/arm/icside.c | 18883 -> 18849 (-34 bytes)
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
The arm26 port has been in a state where it was far from even compiling
for quite some time.
Ian Molton agreed with the removal.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Since ide_dma_timeout() method's result is discarded, make it return 'void'.
While at it, drop 'ide_' from the method's name, drop the '__' prefix from
the default method's name, and do some cleanups in this method driver-wise:
- in ide-dma.c, au1xxx-ide.c, and pdc202xx_old.c, define/use 'hwif' variable;
- in au1xxx-ide.c, get rid of commented out printk();
- in sl82c105.c, get rid of unnecessary variables.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Since ide_dma_lostirq() method's result is discarded, make it return 'void'.
While at it, rename the method to dma_lost_irq(), drop the '__' prefix from the
default method's name, and do some cleanups in this method driver-wise:
- in aec62xx.c, rename the method in accordance with other drivers, and get rid
of unnecessary variables there;
- in pdc202xx_old.c, define/use 'hwif' variable;
- in sgiioc4.c, rearrange the code to call the resetproc() method directly.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add devres ecardm_iomap() and ecardm_iounmap() for Acorn expansion
cards. Convert all expansion card drivers to use them.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rather than having every driver fiddle about setting its private
IRQ operations and data, provide a helper function to contain
this functionality in one place.
Arrange to remove the driver-private IRQ operations and data when
the device is removed from the driver, and remove the driver
private code to do this.
This fixes potential problems caused by drivers forgetting to
remove these hooks.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* create_proc_ide_interfaces() tries to add /proc entries for every probed
and initialized IDE port, replace it by ide_proc_register_port() which does
it only for the given port (also rename destroy_proc_ide_interface() to
ide_proc_unregister_port() for consistency)
* convert {create,destroy}_proc_ide_interface[s]() users to use new functions
* pmac driver depended on proc_ide_create() to add /proc port entries, fix it
* au1xxx-ide, swarm and cs5520 drivers depended indirectly on ide-generic
driver (CONFIG_IDE_GENERIC=y) to add port /proc entries, fix them
* there is now no need to add /proc entries for IDE ports in proc_ide_create()
so don't do it
* proc_ide_create() needs now to be called before drivers are probed - fix it,
while at it make proc_ide_create() create /proc "ide" directory
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add "initializing" argument to ide_register_hw() and use it instead of ide.c
wide variable of the same name. Update all users of ide_register_hw()
accordingly.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Depends on the "ide: fix UDMA/MWDMA/SWDMA masks" patch.
* add ide_hwif_t.udma_filter hook for filtering UDMA mask
(use it in alim15x3, hpt366, siimage and serverworks drivers)
* add ide_max_dma_mode() for finding best DMA mode for the device
(loosely based on some older libata-core.c code)
* convert ide_dma_speed() users to use ide_max_dma_mode()
* make ide_rate_filter() take "ide_drive_t *drive" as an argument instead
of "u8 mode" and teach it to how to use UDMA mask to do filtering
* use ide_rate_filter() in hpt366 driver
* remove no longer needed ide_dma_speed() and *_ratemask()
* unexport eighty_ninty_three()
v2:
* rename ->filter_udma_mask to ->udma_filter
[ Suggested by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ]
v3:
* updated for scc_pata driver (fixes XFER_UDMA_6 filtering for user-space
originated transfer mode change requests when 100MHz clock is used)
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
All modern distributions have been setting these options to "y" for ages.
(additionally "n" cases have been obsoleted for few years). Therefore use
DMA by default and remove CONFIG_IDEDMA_{ICS,PCI}_AUTO (also remove no longer
needed CONFIG_IDEDMA_AUTO). This fixes DMA support for rare configurations
where CONFIG_IDEDMA_{ICS,PCI}_AUTO was set to "n" but "hdparm -d 1" was used
to enable DMA support and which were forced to PIO mode by "ide: don't allow
DMA to be enabled if CONFIG_IDEDMA_{ICS,PCI}_AUTO=n" patch. There is no
functionality loss because "ide=nodma" kernel option is still available.
Cc: Patrick Horn <phrh@yahoo.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* since ide_hwif_t.ide_dma_host_on is called either when drive->using_dma == 1
or when return value is discarded make it void, also drop "ide_" prefix
* make __ide_dma_host_on() void and drop "__" prefix
v2:
* while at it rename atiixp_ide_dma_host_on() to atiixp_dma_host_on()
and sgiioc4_ide_dma_host_on() to sgiioc4_dma_host_on().
[ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* since ide_hwif_t.ide_dma_{host_off,off_quietly} always return '0'
make these functions void and while at it drop "ide_" prefix
* fix comment for __ide_dma_off_quietly()
* make __ide_dma_{host_off,off_quietly,off}() void and drop "__" prefix
v2:
* while at it rename atiixp_ide_dma_host_off() to atiixp_dma_host_off(),
sgiioc4_ide_dma_{host_off,off_quietly}() to sgiioc4_dma_{host_off,off_quietly}()
and sl82c105_ide_dma_off_quietly() to sl82c105_dma_off_quietly()
[ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* add ide_set_dma() helper and make ide_hwif_t.ide_dma_check return
-1 when DMA needs to be disabled (== need to call ->ide_dma_off_quietly)
0 when DMA needs to be enabled (== need to call ->ide_dma_on)
1 when DMA setting shouldn't be changed
* fix IDE code to use ide_set_dma() instead if using ->ide_dma_check directly
v2:
* updated for scc_pata
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
All users of ->mmio == 1 are gone so convert ->mmio into flag.
Noticed by Alan Cox.
v2:
* updated for scc_pata
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
