xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ide: add ide_set{_max}_pio() (take 4)

Browse Source 
* Add IDE_HFLAG_ABUSE_{PREFETCH,FAST_DEVSEL,DMA_MODES} flags
  and set them in ht6560, cmd640, cmd64x and sc1200 host drivers.

* Add set_pio_mode_abuse() for checking if host driver has a non-standard
  ->tuneproc() implementation and use it in do_special().

* Add ide_set_pio() for setting PIO mode (it uses hwif->pio_mask to find
  the maximum PIO mode supported by the host), also add ide_set_max_pio()
  wrapper for ide_set_pio() to use for auto-tuning.  Convert users of
  ->tuneproc to use ide_set{_max}_pio() where possible.  This leaves only
  do_special(), set_using_pio(), ide_hwif_restore() and ide_set_pio() as
  a direct users of ->tuneproc.

* Remove no longer needed ide_get_best_pio_mode() calls and printk-s
  reporting PIO mode selected from ->tuneproc implementations.

* Rename ->tuneproc hook to ->set_pio_mode and make 'pio' argument const.

* Remove stale comment from ide_config_drive_speed().

v2:
* Fix "ata_" prefix (Noticed by Jeff).

v3:
* Minor cleanups/fixups per Sergei's suggestions.

v4:
* Fix compile problem in drivers/ide/pci/cmd640.c
  (Noticed by Andrew Morton).

* Improve some ->set_pio_mode comments.

Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2007-10-11 23:54:00 +02:00
parent 842c19ad6f
commit 26bcb879c0
45 changed files with 318 additions and 326 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/ide/legacy/ali14xx.c
View File

@@ -68,8 +68,6 @@ static RegInitializer initData[] __initdata = {
{0x35, 0x03}, {0x00, 0x00}
};
#define ALI_MAX_PIO 4
/* timing parameter registers for each drive */
static struct { u8 reg1, reg2, reg3, reg4; } regTab[4] = {
{0x03, 0x26, 0x04, 0x27}, /* drive 0 */
@@ -109,7 +107,7 @@ static void outReg (u8 data, u8 reg)
* This function computes timing parameters
* and sets controller registers accordingly.
*/
static void ali14xx_tune_drive (ide_drive_t *drive, u8 pio)
static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
int driveNum;
int time1, time2;
@@ -117,8 +115,6 @@ static void ali14xx_tune_drive (ide_drive_t *drive, u8 pio)
unsigned long flags;
int bus_speed = system_bus_clock();
pio = ide_get_best_pio_mode(drive, pio, ALI_MAX_PIO);
/* calculate timing, according to PIO mode */
time1 = ide_pio_cycle_time(drive, pio);
time2 = ide_pio_timings[pio].active_time;
@@ -212,12 +208,12 @@ static int __init ali14xx_probe(void)
hwif->chipset = ide_ali14xx;
hwif->pio_mask = ATA_PIO4;
hwif->tuneproc = &ali14xx_tune_drive;
hwif->set_pio_mode = &ali14xx_set_pio_mode;
hwif->mate = mate;
mate->chipset = ide_ali14xx;
mate->pio_mask = ATA_PIO4;
mate->tuneproc = &ali14xx_tune_drive;
mate->set_pio_mode = &ali14xx_set_pio_mode;
mate->mate = hwif;
mate->channel = 1;

6
drivers/ide/legacy/dtc2278.c
View File

@@ -67,12 +67,10 @@ static void sub22 (char b, char c)
}
}
static void tune_dtc2278 (ide_drive_t *drive, u8 pio)
static void dtc2278_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
unsigned long flags;
pio = ide_get_best_pio_mode(drive, pio, 4);
if (pio >= 3) {
spin_lock_irqsave(&ide_lock, flags);
/*
@@ -124,7 +122,7 @@ static int __init dtc2278_probe(void)
hwif->serialized = 1;
hwif->chipset = ide_dtc2278;
hwif->pio_mask = ATA_PIO4;
hwif->tuneproc = &tune_dtc2278;
hwif->set_pio_mode = &dtc2278_set_pio_mode;
hwif->drives[0].no_unmask = 1;
hwif->drives[1].no_unmask = 1;
hwif->mate = mate;

11
drivers/ide/legacy/ht6560b.c
View File

@@ -199,7 +199,7 @@ static int __init try_to_init_ht6560b(void)
return 1;
}
static u8 ht_pio2timings(ide_drive_t *drive, u8 pio)
static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio)
{
int active_time, recovery_time;
int active_cycles, recovery_cycles;
@@ -208,7 +208,6 @@ static u8 ht_pio2timings(ide_drive_t *drive, u8 pio)
if (pio) {
unsigned int cycle_time;
pio = ide_get_best_pio_mode(drive, pio, 5);
cycle_time = ide_pio_cycle_time(drive, pio);
/*
@@ -277,7 +276,7 @@ static void ht_set_prefetch(ide_drive_t *drive, u8 state)
#endif
}
static void tune_ht6560b (ide_drive_t *drive, u8 pio)
static void ht6560b_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
unsigned long flags;
u8 timing;
@@ -333,15 +332,17 @@ int __init ht6560b_init(void)
hwif->chipset = ide_ht6560b;
hwif->selectproc = &ht6560b_selectproc;
hwif->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
hwif->pio_mask = ATA_PIO5;
hwif->tuneproc = &tune_ht6560b;
hwif->set_pio_mode = &ht6560b_set_pio_mode;
hwif->serialized = 1; /* is this needed? */
hwif->mate = mate;
mate->chipset = ide_ht6560b;
mate->selectproc = &ht6560b_selectproc;
mate->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
mate->pio_mask = ATA_PIO5;
mate->tuneproc = &tune_ht6560b;
mate->set_pio_mode = &ht6560b_set_pio_mode;
mate->serialized = 1; /* is this needed? */
mate->mate = hwif;
mate->channel = 1;

60
drivers/ide/legacy/qd65xx.c
View File

@@ -224,15 +224,14 @@ static void qd_set_timing (ide_drive_t *drive, u8 timing)
printk(KERN_DEBUG "%s: %#x\n", drive->name, timing);
}
/*
* qd6500_tune_drive
*/
static void qd6500_tune_drive (ide_drive_t *drive, u8 pio)
static void qd6500_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
int active_time = 175;
int recovery_time = 415; /* worst case values from the dos driver */
/*
* FIXME: use "pio" value
*/
if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)
&& drive->id->tPIO && (drive->id->field_valid & 0x02)
&& drive->id->eide_pio >= 240) {
@@ -246,11 +245,7 @@ static void qd6500_tune_drive (ide_drive_t *drive, u8 pio)
qd_set_timing(drive, qd6500_compute_timing(HWIF(drive), active_time, recovery_time));
}
/*
* qd6580_tune_drive
*/
static void qd6580_tune_drive (ide_drive_t *drive, u8 pio)
static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
int base = HWIF(drive)->select_data;
unsigned int cycle_time;
@@ -258,7 +253,6 @@ static void qd6580_tune_drive (ide_drive_t *drive, u8 pio)
int recovery_time = 415; /* worst case values from the dos driver */
if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) {
pio = ide_get_best_pio_mode(drive, pio, 4);
cycle_time = ide_pio_cycle_time(drive, pio);
switch (pio) {
@@ -335,8 +329,7 @@ static int __init qd_testreg(int port)
*/
static void __init qd_setup(ide_hwif_t *hwif, int base, int config,
unsigned int data0, unsigned int data1,
void (*tuneproc) (ide_drive_t *, u8 pio))
unsigned int data0, unsigned int data1)
{
hwif->chipset = ide_qd65xx;
hwif->channel = hwif->index;
@@ -347,8 +340,6 @@ static void __init qd_setup(ide_hwif_t *hwif, int base, int config,
hwif->drives[0].io_32bit =
hwif->drives[1].io_32bit = 1;
hwif->pio_mask = ATA_PIO4;
hwif->tuneproc = tuneproc;
probe_hwif_init(hwif);
}
/*
@@ -361,7 +352,7 @@ static void __exit qd_unsetup(ide_hwif_t *hwif)
{
u8 config = hwif->config_data;
int base = hwif->select_data;
void *tuneproc = (void *) hwif->tuneproc;
void *set_pio_mode = (void *)hwif->set_pio_mode;
if (hwif->chipset != ide_qd65xx)
return;
@@ -369,12 +360,12 @@ static void __exit qd_unsetup(ide_hwif_t *hwif)
printk(KERN_NOTICE "%s: back to defaults\n", hwif->name);
hwif->selectproc = NULL;
hwif->tuneproc = NULL;
hwif->set_pio_mode = NULL;
if (tuneproc == (void *) qd6500_tune_drive) {
if (set_pio_mode == (void *)qd6500_set_pio_mode) {
// will do it for both
qd_write_reg(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
} else if (tuneproc == (void *) qd6580_tune_drive) {
} else if (set_pio_mode == (void *)qd6580_set_pio_mode) {
if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
qd_write_reg(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
qd_write_reg(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1]));
@@ -424,8 +415,11 @@ static int __init qd_probe(int base)
return 1;
}
qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA,
&qd6500_tune_drive);
qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA);
hwif->set_pio_mode = &qd6500_set_pio_mode;
probe_hwif_init(hwif);
ide_proc_register_port(hwif);
@@ -455,8 +449,12 @@ static int __init qd_probe(int base)
printk(KERN_INFO "%s: qd6580: single IDE board\n",
hwif->name);
qd_setup(hwif, base, config | (control << 8),
QD6580_DEF_DATA, QD6580_DEF_DATA2,
&qd6580_tune_drive);
QD6580_DEF_DATA, QD6580_DEF_DATA2);
hwif->set_pio_mode = &qd6580_set_pio_mode;
probe_hwif_init(hwif);
qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
ide_proc_register_port(hwif);
@@ -472,11 +470,19 @@ static int __init qd_probe(int base)
hwif->name, mate->name);
qd_setup(hwif, base, config | (control << 8),
QD6580_DEF_DATA, QD6580_DEF_DATA,
&qd6580_tune_drive);
QD6580_DEF_DATA, QD6580_DEF_DATA);
hwif->set_pio_mode = &qd6580_set_pio_mode;
probe_hwif_init(hwif);
qd_setup(mate, base, config | (control << 8),
QD6580_DEF_DATA2, QD6580_DEF_DATA2,
&qd6580_tune_drive);
QD6580_DEF_DATA2, QD6580_DEF_DATA2);
mate->set_pio_mode = &qd6580_set_pio_mode;
probe_hwif_init(mate);
qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
ide_proc_register_port(hwif);

7
drivers/ide/legacy/umc8672.c
View File

@@ -105,12 +105,11 @@ static void umc_set_speeds (u8 speeds[])
speeds[0], speeds[1], speeds[2], speeds[3]);
}
static void tune_umc (ide_drive_t *drive, u8 pio)
static void umc_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
unsigned long flags;
ide_hwgroup_t *hwgroup = ide_hwifs[HWIF(drive)->index^1].hwgroup;
pio = ide_get_best_pio_mode(drive, pio, 4);
printk("%s: setting umc8672 to PIO mode%d (speed %d)\n",
drive->name, pio, pio_to_umc[pio]);
spin_lock_irqsave(&ide_lock, flags);
@@ -150,12 +149,12 @@ static int __init umc8672_probe(void)
hwif->chipset = ide_umc8672;
hwif->pio_mask = ATA_PIO4;
hwif->tuneproc = &tune_umc;
hwif->set_pio_mode = &umc_set_pio_mode;
hwif->mate = mate;
mate->chipset = ide_umc8672;
mate->pio_mask = ATA_PIO4;
mate->tuneproc = &tune_umc;
mate->set_pio_mode = &umc_set_pio_mode;
mate->mate = hwif;
mate->channel = 1;