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Merge tag 'for-5.4/libata-2019-09-15' of git://git.kernel.dk/linux-block
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Pull libata updates from Jens Axboe:

 - Kill unused export (Andy)

 - Use dma_set_mask_and_coherent() throughout (Christoph)

 - Drop PCS quirk on Denverton, which has different register layout
   (Dan)

 - Support non-boot time detection for pata_buddha (Max)

* tag 'for-5.4/libata-2019-09-15' of git://git.kernel.dk/linux-block:
  libata/ahci: Drop PCS quirk for Denverton and beyond
  ahci: Do not export local variable ahci_em_messages
  libata: switch remaining drivers to use dma_set_mask_and_coherent
  sata_sil24: use dma_set_mask_and_coherent
  sata_qstor: use dma_set_mask_and_coherent
  sata_nv: use dma_set_mask_and_coherent
  sata_mv: use dma_set_mask_and_coherent
  pdc_adma: use dma_set_mask_and_coherent
  ahci: use dma_set_mask_and_coherent
  acard_ahci: use dma_set_mask_and_coherent
  ata/pata_buddha: Probe via modalias instead of initcall
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@torvalds
torvalds committed Sep 17, 2019
2 parents 1e6fa3a + c312ef1 commit 5260c2b
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Showing 24 changed files with 255 additions and 378 deletions.
38 changes: 5 additions & 33 deletions drivers/ata/acard-ahci.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -160,37 +160,6 @@ static int acard_ahci_pci_device_resume(struct pci_dev *pdev)
}
#endif

static int acard_ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
{
int rc;

if (using_dac &&
!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
if (rc) {
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev,
"64-bit DMA enable failed\n");
return rc;
}
}
} else {
rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev, "32-bit DMA enable failed\n");
return rc;
}
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev,
"32-bit consistent DMA enable failed\n");
return rc;
}
}
return 0;
}

static void acard_ahci_pci_print_info(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
Expand Down Expand Up @@ -471,9 +440,12 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
}

/* initialize adapter */
rc = acard_ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
if (rc)
rc = dma_set_mask_and_coherent(&pdev->dev,
DMA_BIT_MASK((hpriv->cap & HOST_CAP_64) ? 64 : 32));
if (rc) {
dev_err(&pdev->dev, "DMA enable failed\n");
return rc;
}

rc = ahci_reset_controller(host);
if (rc)
Expand Down
149 changes: 77 additions & 72 deletions drivers/ata/ahci.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,12 @@ enum board_ids {
board_ahci_sb700, /* for SB700 and SB800 */
board_ahci_vt8251,

/*
* board IDs for Intel chipsets that support more than 6 ports
* *and* end up needing the PCS quirk.
*/
board_ahci_pcs7,

/* aliases */
board_ahci_mcp_linux = board_ahci_mcp65,
board_ahci_mcp67 = board_ahci_mcp65,
Expand Down Expand Up @@ -220,6 +226,12 @@ static const struct ata_port_info ahci_port_info[] = {
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_vt8251_ops,
},
[board_ahci_pcs7] = {
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
};

static const struct pci_device_id ahci_pci_tbl[] = {
Expand Down Expand Up @@ -264,26 +276,26 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_mobile }, /* PCH M RAID */
{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_mobile }, /* CPT M AHCI */
{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
Expand Down Expand Up @@ -623,30 +635,6 @@ static void ahci_pci_save_initial_config(struct pci_dev *pdev,
ahci_save_initial_config(&pdev->dev, hpriv);
}

static int ahci_pci_reset_controller(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
int rc;

rc = ahci_reset_controller(host);
if (rc)
return rc;

if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
struct ahci_host_priv *hpriv = host->private_data;
u16 tmp16;

/* configure PCS */
pci_read_config_word(pdev, 0x92, &tmp16);
if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
tmp16 |= hpriv->port_map;
pci_write_config_word(pdev, 0x92, tmp16);
}
}

return 0;
}

static void ahci_pci_init_controller(struct ata_host *host)
{
struct ahci_host_priv *hpriv = host->private_data;
Expand Down Expand Up @@ -849,7 +837,7 @@ static int ahci_pci_device_runtime_resume(struct device *dev)
struct ata_host *host = pci_get_drvdata(pdev);
int rc;

rc = ahci_pci_reset_controller(host);
rc = ahci_reset_controller(host);
if (rc)
return rc;
ahci_pci_init_controller(host);
Expand Down Expand Up @@ -884,7 +872,7 @@ static int ahci_pci_device_resume(struct device *dev)
ahci_mcp89_apple_enable(pdev);

if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
rc = ahci_pci_reset_controller(host);
rc = ahci_reset_controller(host);
if (rc)
return rc;

Expand All @@ -901,40 +889,23 @@ static int ahci_pci_device_resume(struct device *dev)

static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
{
const int dma_bits = using_dac ? 64 : 32;
int rc;

/*
* If the device fixup already set the dma_mask to some non-standard
* value, don't extend it here. This happens on STA2X11, for example.
*
* XXX: manipulating the DMA mask from platform code is completely
* bogus, platform code should use dev->bus_dma_mask instead..
*/
if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
return 0;

if (using_dac &&
!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
if (rc) {
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev,
"64-bit DMA enable failed\n");
return rc;
}
}
} else {
rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev, "32-bit DMA enable failed\n");
return rc;
}
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev,
"32-bit consistent DMA enable failed\n");
return rc;
}
}
return 0;
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
if (rc)
dev_err(&pdev->dev, "DMA enable failed\n");
return rc;
}

static void ahci_pci_print_info(struct ata_host *host)
Expand Down Expand Up @@ -1619,6 +1590,34 @@ static void ahci_update_initial_lpm_policy(struct ata_port *ap,
ap->target_lpm_policy = policy;
}

static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
{
const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
u16 tmp16;

/*
* Only apply the 6-port PCS quirk for known legacy platforms.
*/
if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
return;
if (((enum board_ids) id->driver_data) < board_ahci_pcs7)
return;

/*
* port_map is determined from PORTS_IMPL PCI register which is
* implemented as write or write-once register. If the register
* isn't programmed, ahci automatically generates it from number
* of ports, which is good enough for PCS programming. It is
* otherwise expected that platform firmware enables the ports
* before the OS boots.
*/
pci_read_config_word(pdev, PCS_6, &tmp16);
if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
tmp16 |= hpriv->port_map;
pci_write_config_word(pdev, PCS_6, tmp16);
}
}

static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
unsigned int board_id = ent->driver_data;
Expand Down Expand Up @@ -1731,6 +1730,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/* save initial config */
ahci_pci_save_initial_config(pdev, hpriv);

/*
* If platform firmware failed to enable ports, try to enable
* them here.
*/
ahci_intel_pcs_quirk(pdev, hpriv);

/* prepare host */
if (hpriv->cap & HOST_CAP_NCQ) {
pi.flags |= ATA_FLAG_NCQ;
Expand Down Expand Up @@ -1840,7 +1845,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
return rc;

rc = ahci_pci_reset_controller(host);
rc = ahci_reset_controller(host);
if (rc)
return rc;

Expand Down
2 changes: 2 additions & 0 deletions drivers/ata/ahci.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -247,6 +247,8 @@ enum {
ATA_FLAG_ACPI_SATA | ATA_FLAG_AN,

ICH_MAP = 0x90, /* ICH MAP register */
PCS_6 = 0x92, /* 6 port PCS */
PCS_7 = 0x94, /* 7+ port PCS (Denverton) */

/* em constants */
EM_MAX_SLOTS = 8,
Expand Down
1 change: 0 additions & 1 deletion drivers/ata/libahci.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -175,7 +175,6 @@ struct ata_port_operations ahci_pmp_retry_srst_ops = {
EXPORT_SYMBOL_GPL(ahci_pmp_retry_srst_ops);

static bool ahci_em_messages __read_mostly = true;
EXPORT_SYMBOL_GPL(ahci_em_messages);
module_param(ahci_em_messages, bool, 0444);
/* add other LED protocol types when they become supported */
MODULE_PARM_DESC(ahci_em_messages,
Expand Down
8 changes: 1 addition & 7 deletions drivers/ata/libata-sff.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -3153,15 +3153,9 @@ void ata_pci_bmdma_init(struct ata_host *host)
* ->sff_irq_clear method. Try to initialize bmdma_addr
* regardless of dma masks.
*/
rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
rc = dma_set_mask_and_coherent(&pdev->dev, ATA_DMA_MASK);
if (rc)
ata_bmdma_nodma(host, "failed to set dma mask");
if (!rc) {
rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
if (rc)
ata_bmdma_nodma(host,
"failed to set consistent dma mask");
}

/* request and iomap DMA region */
rc = pcim_iomap_regions(pdev, 1 << 4, dev_driver_string(gdev));
Expand Down
7 changes: 1 addition & 6 deletions drivers/ata/pata_atp867x.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -463,12 +463,7 @@ static int atp867x_ata_pci_sff_init_host(struct ata_host *host)

atp867x_fixup(host);

rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
if (rc)
return rc;

rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
return rc;
return dma_set_mask_and_coherent(&pdev->dev, ATA_DMA_MASK);
}

static int atp867x_init_one(struct pci_dev *pdev,
Expand Down
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