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Commit 110f66d2 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

libata: make gtf_filter per-dev 



Add ->gtf_filter to ata_device and set it to ata_acpi_gtf_filter when
initializing ata_link.  This is to allow quirks which apply different
gtf filters.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent fa5b561c

drivers/ata/libata-acpi.c

+9 −8
Original line number Diff line number Diff line
@@ -20,7 +20,7 @@ 


#include <acpi/acpi_bus.h>



static unsigned int ata_acpi_gtf_filter = ATA_ACPI_FILTER_DEFAULT;

unsigned int ata_acpi_gtf_filter = ATA_ACPI_FILTER_DEFAULT;

module_param_named(acpi_gtf_filter, ata_acpi_gtf_filter, int, 0644);

MODULE_PARM_DESC(acpi_gtf_filter, "filter mask for ACPI _GTF commands, set to filter out (0x1=set xfermode, 0x2=lock/freeze lock, 0x4=DIPM, 0x8=FPDMA non-zero offset, 0x10=FPDMA DMA Setup FIS auto-activate)");
@@ -603,10 +603,11 @@ static void ata_acpi_gtf_to_tf(struct ata_device *dev, 
	tf->command = gtf->tf[6];	/* 0x1f7 */

}



static int ata_acpi_filter_tf(const struct ata_taskfile *tf,

static int ata_acpi_filter_tf(struct ata_device *dev,

			      const struct ata_taskfile *tf,

			      const struct ata_taskfile *ptf)

{

	if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_SETXFER) {

	if (dev->gtf_filter & ATA_ACPI_FILTER_SETXFER) {

		/* libata doesn't use ACPI to configure transfer mode.

		 * It will only confuse device configuration.  Skip.

		 */
@@ -615,7 +616,7 @@ static int ata_acpi_filter_tf(const struct ata_taskfile *tf, 
			return 1;

	}



	if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_LOCK) {

	if (dev->gtf_filter & ATA_ACPI_FILTER_LOCK) {

		/* BIOS writers, sorry but we don't wanna lock

		 * features unless the user explicitly said so.

		 */
@@ -640,18 +641,18 @@ static int ata_acpi_filter_tf(const struct ata_taskfile *tf, 
	if (tf->command == ATA_CMD_SET_FEATURES &&

	    tf->feature == SETFEATURES_SATA_ENABLE) {

		/* inhibit enabling DIPM */

		if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_DIPM &&

		if (dev->gtf_filter & ATA_ACPI_FILTER_DIPM &&

		    tf->nsect == SATA_DIPM)

			return 1;



		/* inhibit FPDMA non-zero offset */

		if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_FPDMA_OFFSET &&

		if (dev->gtf_filter & ATA_ACPI_FILTER_FPDMA_OFFSET &&

		    (tf->nsect == SATA_FPDMA_OFFSET ||

		     tf->nsect == SATA_FPDMA_IN_ORDER))

			return 1;



		/* inhibit FPDMA auto activation */

		if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_FPDMA_AA &&

		if (dev->gtf_filter & ATA_ACPI_FILTER_FPDMA_AA &&

		    tf->nsect == SATA_FPDMA_AA)

			return 1;

	}
@@ -705,7 +706,7 @@ static int ata_acpi_run_tf(struct ata_device *dev, 
		pptf = &ptf;

	}



	if (!ata_acpi_filter_tf(&tf, pptf)) {

	if (!ata_acpi_filter_tf(dev, &tf, pptf)) {

		rtf = tf;

		err_mask = ata_exec_internal(dev, &rtf, NULL,

					     DMA_NONE, NULL, 0, 0);

drivers/ata/libata-core.c

+3 −0
Original line number Diff line number Diff line
@@ -5591,6 +5591,9 @@ void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp) 


		dev->link = link;

		dev->devno = dev - link->device;

#ifdef CONFIG_ATA_ACPI

		dev->gtf_filter = ata_acpi_gtf_filter;

#endif

		ata_dev_init(dev);

	}

}

drivers/ata/libata.h

+2 −0
Original line number Diff line number Diff line
@@ -118,6 +118,8 @@ extern void ata_lpm_schedule(struct ata_port *ap, enum link_pm); 


/* libata-acpi.c */

#ifdef CONFIG_ATA_ACPI

extern unsigned int ata_acpi_gtf_filter;



extern void ata_acpi_associate_sata_port(struct ata_port *ap);

extern void ata_acpi_associate(struct ata_host *host);

extern void ata_acpi_dissociate(struct ata_host *host);

include/linux/libata.h

+1 −0
Original line number Diff line number Diff line
@@ -598,6 +598,7 @@ struct ata_device { 
#ifdef CONFIG_ATA_ACPI

	acpi_handle		acpi_handle;

	union acpi_object	*gtf_cache;

	unsigned int		gtf_filter;

#endif

	/* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */

	u64			n_sectors;	/* size of device, if ATA */