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path: root/drivers/ide/ide-acpi.c
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Diffstat (limited to 'drivers/ide/ide-acpi.c')
-rw-r--r--drivers/ide/ide-acpi.c84
1 files changed, 35 insertions, 49 deletions
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 77f79d26b26..b6940992a6f 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -7,17 +7,17 @@
* Copyright (C) 2006 Hannes Reinecke
*/
+#include <linux/acpi.h>
#include <linux/ata.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/kernel.h>
-#include <acpi/acpi.h>
+#include <linux/slab.h>
#include <linux/ide.h>
#include <linux/pci.h>
#include <linux/dmi.h>
-
-#include <acpi/acpi_bus.h>
+#include <linux/module.h>
#define REGS_PER_GTF 7
@@ -51,15 +51,15 @@ struct ide_acpi_hwif_link {
#define DEBPRINT(fmt, args...) do {} while (0)
#endif /* DEBUGGING */
-static int ide_noacpi;
+static bool ide_noacpi;
module_param_named(noacpi, ide_noacpi, bool, 0);
MODULE_PARM_DESC(noacpi, "disable IDE ACPI support");
-static int ide_acpigtf;
+static bool ide_acpigtf;
module_param_named(acpigtf, ide_acpigtf, bool, 0);
MODULE_PARM_DESC(acpigtf, "enable IDE ACPI _GTF support");
-static int ide_acpionboot;
+static bool ide_acpionboot;
module_param_named(acpionboot, ide_acpionboot, bool, 0);
MODULE_PARM_DESC(acpionboot, "call IDE ACPI methods on boot");
@@ -92,6 +92,22 @@ int ide_acpi_init(void)
return 0;
}
+bool ide_port_acpi(ide_hwif_t *hwif)
+{
+ return ide_noacpi == 0 && hwif->acpidata;
+}
+
+static acpi_handle acpi_get_child(acpi_handle handle, u64 addr)
+{
+ struct acpi_device *adev;
+
+ if (!handle || acpi_bus_get_device(handle, &adev))
+ return NULL;
+
+ adev = acpi_find_child_device(adev, addr, false);
+ return adev ? adev->handle : NULL;
+}
+
/**
* ide_get_dev_handle - finds acpi_handle and PCI device.function
* @dev: device to locate
@@ -103,14 +119,12 @@ int ide_acpi_init(void)
* Returns 0 on success, <0 on error.
*/
static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
- acpi_integer *pcidevfn)
+ u64 *pcidevfn)
{
struct pci_dev *pdev = to_pci_dev(dev);
unsigned int bus, devnum, func;
- acpi_integer addr;
+ u64 addr;
acpi_handle dev_handle;
- struct acpi_buffer buffer = {.length = ACPI_ALLOCATE_BUFFER,
- .pointer = NULL};
acpi_status status;
struct acpi_device_info *dinfo = NULL;
int ret = -ENODEV;
@@ -119,22 +133,21 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
devnum = PCI_SLOT(pdev->devfn);
func = PCI_FUNC(pdev->devfn);
/* ACPI _ADR encoding for PCI bus: */
- addr = (acpi_integer)(devnum << 16 | func);
+ addr = (u64)(devnum << 16 | func);
DEBPRINT("ENTER: pci %02x:%02x.%01x\n", bus, devnum, func);
- dev_handle = DEVICE_ACPI_HANDLE(dev);
+ dev_handle = ACPI_HANDLE(dev);
if (!dev_handle) {
DEBPRINT("no acpi handle for device\n");
goto err;
}
- status = acpi_get_object_info(dev_handle, &buffer);
+ status = acpi_get_object_info(dev_handle, &dinfo);
if (ACPI_FAILURE(status)) {
DEBPRINT("get_object_info for device failed\n");
goto err;
}
- dinfo = buffer.pointer;
if (dinfo && (dinfo->valid & ACPI_VALID_ADR) &&
dinfo->address == addr) {
*pcidevfn = addr;
@@ -167,7 +180,7 @@ static acpi_handle ide_acpi_hwif_get_handle(ide_hwif_t *hwif)
{
struct device *dev = hwif->gendev.parent;
acpi_handle uninitialized_var(dev_handle);
- acpi_integer pcidevfn;
+ u64 pcidevfn;
acpi_handle chan_handle;
int err;
@@ -352,9 +365,6 @@ int ide_acpi_exec_tfs(ide_drive_t *drive)
unsigned long gtf_address;
unsigned long obj_loc;
- if (ide_noacpi)
- return 0;
-
DEBPRINT("call get_GTF, drive=%s port=%d\n", drive->name, drive->dn);
ret = do_drive_get_GTF(drive, &gtf_length, &gtf_address, &obj_loc);
@@ -389,16 +399,6 @@ void ide_acpi_get_timing(ide_hwif_t *hwif)
struct acpi_buffer output;
union acpi_object *out_obj;
- if (ide_noacpi)
- return;
-
- DEBPRINT("ENTER:\n");
-
- if (!hwif->acpidata) {
- DEBPRINT("no ACPI data for %s\n", hwif->name);
- return;
- }
-
/* Setting up output buffer for _GTM */
output.length = ACPI_ALLOCATE_BUFFER;
output.pointer = NULL; /* ACPI-CA sets this; save/free it later */
@@ -426,21 +426,21 @@ void ide_acpi_get_timing(ide_hwif_t *hwif)
out_obj = output.pointer;
if (out_obj->type != ACPI_TYPE_BUFFER) {
- kfree(output.pointer);
DEBPRINT("Run _GTM: error: "
"expected object type of ACPI_TYPE_BUFFER, "
"got 0x%x\n", out_obj->type);
+ kfree(output.pointer);
return;
}
if (!out_obj->buffer.length || !out_obj->buffer.pointer ||
out_obj->buffer.length != sizeof(struct GTM_buffer)) {
- kfree(output.pointer);
printk(KERN_ERR
"%s: unexpected _GTM length (0x%x)[should be 0x%zx] or "
"addr (0x%p)\n",
__func__, out_obj->buffer.length,
sizeof(struct GTM_buffer), out_obj->buffer.pointer);
+ kfree(output.pointer);
return;
}
@@ -479,16 +479,6 @@ void ide_acpi_push_timing(ide_hwif_t *hwif)
struct ide_acpi_drive_link *master = &hwif->acpidata->master;
struct ide_acpi_drive_link *slave = &hwif->acpidata->slave;
- if (ide_noacpi)
- return;
-
- DEBPRINT("ENTER:\n");
-
- if (!hwif->acpidata) {
- DEBPRINT("no ACPI data for %s\n", hwif->name);
- return;
- }
-
/* Give the GTM buffer + drive Identify data to the channel via the
* _STM method: */
/* setup input parameters buffer for _STM */
@@ -527,16 +517,11 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
ide_drive_t *drive;
int i;
- if (ide_noacpi || ide_noacpi_psx)
+ if (ide_noacpi_psx)
return;
DEBPRINT("ENTER:\n");
- if (!hwif->acpidata) {
- DEBPRINT("no ACPI data for %s\n", hwif->name);
- return;
- }
-
/* channel first and then drives for power on and verse versa for power off */
if (on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
@@ -544,11 +529,12 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
ide_port_for_each_present_dev(i, drive, hwif) {
if (drive->acpidata->obj_handle)
acpi_bus_set_power(drive->acpidata->obj_handle,
- on ? ACPI_STATE_D0 : ACPI_STATE_D3);
+ on ? ACPI_STATE_D0 : ACPI_STATE_D3_COLD);
}
if (!on)
- acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3);
+ acpi_bus_set_power(hwif->acpidata->obj_handle,
+ ACPI_STATE_D3_COLD);
}
/**
@@ -616,7 +602,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
drive->name, err);
}
- if (!ide_acpionboot) {
+ if (ide_noacpi || ide_acpionboot == 0) {
DEBPRINT("ACPI methods disabled on boot\n");
return;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 10:27:42 +0000