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i915: switch from acpi_os_ioremap to memremap 

i915 expects the OpRegion to be cached (i.e. not __iomem), so explicitly
map it with memremap rather than the implied cache setting of
acpi_os_ioremap().

Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Williams, Dan J 2015-10-12 21:12:57 +00:00 committed by Daniel Vetter
parent adfb46721e
commit 115719fcea
5 changed files with 62 additions and 62 deletions
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2
drivers/gpu/drm/i915/i915_debugfs.c
View File

@ -1851,7 +1851,7 @@ static int i915_opregion(struct seq_file *m, void *unused)
goto out;
if (opregion->header) {
memcpy_fromio(data, opregion->header, OPREGION_SIZE);
memcpy(data, opregion->header, OPREGION_SIZE);
seq_write(m, data, OPREGION_SIZE);
}

12
drivers/gpu/drm/i915/i915_drv.h
View File

@ -450,14 +450,14 @@ struct opregion_swsci;
struct opregion_asle;
struct intel_opregion {
struct opregion_header __iomem *header;
struct opregion_acpi __iomem *acpi;
struct opregion_swsci __iomem *swsci;
struct opregion_header *header;
struct opregion_acpi *acpi;
struct opregion_swsci *swsci;
u32 swsci_gbda_sub_functions;
u32 swsci_sbcb_sub_functions;
struct opregion_asle __iomem *asle;
void __iomem *vbt;
u32 __iomem *lid_state;
struct opregion_asle *asle;
void *vbt;
u32 *lid_state;
struct work_struct asle_work;
};
#define OPREGION_SIZE (8*1024)

25
drivers/gpu/drm/i915/intel_bios.c
View File

@ -1231,20 +1231,13 @@ static const struct dmi_system_id intel_no_opregion_vbt[] = {
{ }
};
static const struct bdb_header *validate_vbt(const void __iomem *_base,
static const struct bdb_header *validate_vbt(const void *base,
size_t size,
const void __iomem *_vbt,
const void *_vbt,
const char *source)
{
/*
* This is the one place where we explicitly discard the address space
* (__iomem) of the BIOS/VBT. (And this will cause a sparse complaint.)
* From now on everything is based on 'base', and treated as regular
* memory.
*/
const void *base = (const void *) _base;
size_t offset = _vbt - _base;
const struct vbt_header *vbt = base + offset;
size_t offset = _vbt - base;
const struct vbt_header *vbt = _vbt;
const struct bdb_header *bdb;
if (offset + sizeof(struct vbt_header) > size) {
@ -1282,7 +1275,15 @@ static const struct bdb_header *find_vbt(void __iomem *bios, size_t size)
/* Scour memory looking for the VBT signature. */
for (i = 0; i + 4 < size; i++) {
if (ioread32(bios + i) == *((const u32 *) "$VBT")) {
bdb = validate_vbt(bios, size, bios + i, "PCI ROM");
/*
* This is the one place where we explicitly discard the
* address space (__iomem) of the BIOS/VBT. From now on
* everything is based on 'base', and treated as regular
* memory.
*/
void *_bios = (void __force *) bios;
bdb = validate_vbt(_bios, size, _bios + i, "PCI ROM");
break;
}
}

83
drivers/gpu/drm/i915/intel_opregion.c
View File

@ -239,7 +239,7 @@ struct opregion_asle {
static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct opregion_swsci __iomem *swsci = dev_priv->opregion.swsci;
struct opregion_swsci *swsci = dev_priv->opregion.swsci;
u32 main_function, sub_function, scic;
u16 pci_swsci;
u32 dslp;
@ -264,7 +264,7 @@ static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out)
}
/* Driver sleep timeout in ms. */
dslp = ioread32(&swsci->dslp);
dslp = swsci->dslp;
if (!dslp) {
/* The spec says 2ms should be the default, but it's too small
* for some machines. */
@ -277,7 +277,7 @@ static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out)
}
/* The spec tells us to do this, but we are the only user... */
scic = ioread32(&swsci->scic);
scic = swsci->scic;
if (scic & SWSCI_SCIC_INDICATOR) {
DRM_DEBUG_DRIVER("SWSCI request already in progress\n");
return -EBUSY;
@ -285,8 +285,8 @@ static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out)
scic = function | SWSCI_SCIC_INDICATOR;
iowrite32(parm, &swsci->parm);
iowrite32(scic, &swsci->scic);
swsci->parm = parm;
swsci->scic = scic;
/* Ensure SCI event is selected and event trigger is cleared. */
pci_read_config_word(dev->pdev, PCI_SWSCI, &pci_swsci);
@ -301,7 +301,7 @@ static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out)
pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci);
/* Poll for the result. */
#define C (((scic = ioread32(&swsci->scic)) & SWSCI_SCIC_INDICATOR) == 0)
#define C (((scic = swsci->scic) & SWSCI_SCIC_INDICATOR) == 0)
if (wait_for(C, dslp)) {
DRM_DEBUG_DRIVER("SWSCI request timed out\n");
return -ETIMEDOUT;
@ -317,7 +317,7 @@ static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out)
}
if (parm_out)
*parm_out = ioread32(&swsci->parm);
*parm_out = swsci->parm;
return 0;
@ -412,7 +412,7 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_connector *intel_connector;
struct opregion_asle __iomem *asle = dev_priv->opregion.asle;
struct opregion_asle *asle = dev_priv->opregion.asle;
DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp);
@ -437,7 +437,7 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp);
list_for_each_entry(intel_connector, &dev->mode_config.connector_list, base.head)
intel_panel_set_backlight_acpi(intel_connector, bclp, 255);
iowrite32(DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID, &asle->cblv);
asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID;
drm_modeset_unlock(&dev->mode_config.connection_mutex);
@ -524,14 +524,14 @@ static void asle_work(struct work_struct *work)
struct drm_i915_private *dev_priv =
container_of(opregion, struct drm_i915_private, opregion);
struct drm_device *dev = dev_priv->dev;
struct opregion_asle __iomem *asle = dev_priv->opregion.asle;
struct opregion_asle *asle = dev_priv->opregion.asle;
u32 aslc_stat = 0;
u32 aslc_req;
if (!asle)
return;
aslc_req = ioread32(&asle->aslc);
aslc_req = asle->aslc;
if (!(aslc_req & ASLC_REQ_MSK)) {
DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n",
@ -540,34 +540,34 @@ static void asle_work(struct work_struct *work)
}
if (aslc_req & ASLC_SET_ALS_ILLUM)
aslc_stat |= asle_set_als_illum(dev, ioread32(&asle->alsi));
aslc_stat |= asle_set_als_illum(dev, asle->alsi);
if (aslc_req & ASLC_SET_BACKLIGHT)
aslc_stat |= asle_set_backlight(dev, ioread32(&asle->bclp));
aslc_stat |= asle_set_backlight(dev, asle->bclp);
if (aslc_req & ASLC_SET_PFIT)
aslc_stat |= asle_set_pfit(dev, ioread32(&asle->pfit));
aslc_stat |= asle_set_pfit(dev, asle->pfit);
if (aslc_req & ASLC_SET_PWM_FREQ)
aslc_stat |= asle_set_pwm_freq(dev, ioread32(&asle->pfmb));
aslc_stat |= asle_set_pwm_freq(dev, asle->pfmb);
if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES)
aslc_stat |= asle_set_supported_rotation_angles(dev,
ioread32(&asle->srot));
asle->srot);
if (aslc_req & ASLC_BUTTON_ARRAY)
aslc_stat |= asle_set_button_array(dev, ioread32(&asle->iuer));
aslc_stat |= asle_set_button_array(dev, asle->iuer);
if (aslc_req & ASLC_CONVERTIBLE_INDICATOR)
aslc_stat |= asle_set_convertible(dev, ioread32(&asle->iuer));
aslc_stat |= asle_set_convertible(dev, asle->iuer);
if (aslc_req & ASLC_DOCKING_INDICATOR)
aslc_stat |= asle_set_docking(dev, ioread32(&asle->iuer));
aslc_stat |= asle_set_docking(dev, asle->iuer);
if (aslc_req & ASLC_ISCT_STATE_CHANGE)
aslc_stat |= asle_isct_state(dev);
iowrite32(aslc_stat, &asle->aslc);
asle->aslc = aslc_stat;
}
void intel_opregion_asle_intr(struct drm_device *dev)
@ -592,8 +592,8 @@ static int intel_opregion_video_event(struct notifier_block *nb,
Linux, these are handled by the dock, button and video drivers.
*/
struct opregion_acpi __iomem *acpi;
struct acpi_bus_event *event = data;
struct opregion_acpi *acpi;
int ret = NOTIFY_OK;
if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0)
@ -604,11 +604,10 @@ static int intel_opregion_video_event(struct notifier_block *nb,
acpi = system_opregion->acpi;
if (event->type == 0x80 &&
(ioread32(&acpi->cevt) & 1) == 0)
if (event->type == 0x80 && ((acpi->cevt & 1) == 0))
ret = NOTIFY_BAD;
iowrite32(0, &acpi->csts);
acpi->csts = 0;
return ret;
}
@ -628,14 +627,14 @@ static u32 get_did(struct intel_opregion *opregion, int i)
u32 did;
if (i < ARRAY_SIZE(opregion->acpi->didl)) {
did = ioread32(&opregion->acpi->didl[i]);
did = opregion->acpi->didl[i];
} else {
i -= ARRAY_SIZE(opregion->acpi->didl);
if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2)))
return 0;
did = ioread32(&opregion->acpi->did2[i]);
did = opregion->acpi->did2[i];
}
return did;
@ -644,14 +643,14 @@ static u32 get_did(struct intel_opregion *opregion, int i)
static void set_did(struct intel_opregion *opregion, int i, u32 val)
{
if (i < ARRAY_SIZE(opregion->acpi->didl)) {
iowrite32(val, &opregion->acpi->didl[i]);
opregion->acpi->didl[i] = val;
} else {
i -= ARRAY_SIZE(opregion->acpi->didl);
if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2)))
return;
iowrite32(val, &opregion->acpi->did2[i]);
opregion->acpi->did2[i] = val;
}
}
@ -773,7 +772,7 @@ static void intel_setup_cadls(struct drm_device *dev)
* there are less than eight devices. */
do {
disp_id = get_did(opregion, i);
iowrite32(disp_id, &opregion->acpi->cadl[i]);
opregion->acpi->cadl[i] = disp_id;
} while (++i < 8 && disp_id != 0);
}
@ -792,16 +791,16 @@ void intel_opregion_init(struct drm_device *dev)
/* Notify BIOS we are ready to handle ACPI video ext notifs.
* Right now, all the events are handled by the ACPI video module.
* We don't actually need to do anything with them. */
iowrite32(0, &opregion->acpi->csts);
iowrite32(1, &opregion->acpi->drdy);
opregion->acpi->csts = 0;
opregion->acpi->drdy = 1;
system_opregion = opregion;
register_acpi_notifier(&intel_opregion_notifier);
}
if (opregion->asle) {
iowrite32(ASLE_TCHE_BLC_EN, &opregion->asle->tche);
iowrite32(ASLE_ARDY_READY, &opregion->asle->ardy);
opregion->asle->tche = ASLE_TCHE_BLC_EN;
opregion->asle->ardy = ASLE_ARDY_READY;
}
}
@ -814,19 +813,19 @@ void intel_opregion_fini(struct drm_device *dev)
return;
if (opregion->asle)
iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy);
opregion->asle->ardy = ASLE_ARDY_NOT_READY;
cancel_work_sync(&dev_priv->opregion.asle_work);
if (opregion->acpi) {
iowrite32(0, &opregion->acpi->drdy);
opregion->acpi->drdy = 0;
system_opregion = NULL;
unregister_acpi_notifier(&intel_opregion_notifier);
}
/* just clear all opregion memory pointers now */
iounmap(opregion->header);
memunmap(opregion->header);
opregion->header = NULL;
opregion->acpi = NULL;
opregion->swsci = NULL;
@ -899,10 +898,10 @@ int intel_opregion_setup(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_opregion *opregion = &dev_priv->opregion;
void __iomem *base;
u32 asls, mboxes;
char buf[sizeof(OPREGION_SIGNATURE)];
int err = 0;
void *base;
BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100);
BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100);
@ -920,11 +919,11 @@ int intel_opregion_setup(struct drm_device *dev)
INIT_WORK(&opregion->asle_work, asle_work);
#endif
base = acpi_os_ioremap(asls, OPREGION_SIZE);
base = memremap(asls, OPREGION_SIZE, MEMREMAP_WB);
if (!base)
return -ENOMEM;
memcpy_fromio(buf, base, sizeof(buf));
memcpy(buf, base, sizeof(buf));
if (memcmp(buf, OPREGION_SIGNATURE, 16)) {
DRM_DEBUG_DRIVER("opregion signature mismatch\n");
@ -936,7 +935,7 @@ int intel_opregion_setup(struct drm_device *dev)
opregion->lid_state = base + ACPI_CLID;
mboxes = ioread32(&opregion->header->mboxes);
mboxes = opregion->header->mboxes;
if (mboxes & MBOX_ACPI) {
DRM_DEBUG_DRIVER("Public ACPI methods supported\n");
opregion->acpi = base + OPREGION_ACPI_OFFSET;
@ -951,12 +950,12 @@ int intel_opregion_setup(struct drm_device *dev)
DRM_DEBUG_DRIVER("ASLE supported\n");
opregion->asle = base + OPREGION_ASLE_OFFSET;
iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy);
opregion->asle->ardy = ASLE_ARDY_NOT_READY;
}
return 0;
err_out:
iounmap(base);
memunmap(base);
return err;
}

2
drivers/gpu/drm/i915/intel_panel.c
View File

@ -381,7 +381,7 @@ intel_panel_detect(struct drm_device *dev)
/* Assume that the BIOS does not lie through the OpRegion... */
if (!i915.panel_ignore_lid && dev_priv->opregion.lid_state) {
return ioread32(dev_priv->opregion.lid_state) & 0x1 ?
return *dev_priv->opregion.lid_state & 0x1 ?
connector_status_connected :
connector_status_disconnected;
}