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 --- drivers/gpu/drm/i915/i915_debugfs.c | 2 - drivers/gpu/drm/i915/i915_drv.h | 12 +++-- drivers/gpu/drm/i915/intel_bios.c | 7 +-- drivers/gpu/drm/i915/intel_opregion.c | 73 ++++++++++++++++----------------- drivers/gpu/drm/i915/intel_panel.c | 2 - 5 files changed, 47 insertions(+), 49 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e3ec9049081f..15989cc16e92 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1849,7 +1849,7 @@ 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); }
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e1db8de52851..d8684634a31d 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -444,14 +444,14 @@ 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) diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index c19e669ffe50..1ee2f11d355d 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -1238,11 +1238,10 @@ static const struct bdb_header *validate_vbt(const void __iomem *_base, { /* * 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. + * (__iomem) of the BIOS/VBT. From now on everything is based on + * 'base', and treated as regular memory. */ - const void *base = (const void *) _base; + const void *base = (const void __force *) _base; size_t offset = _vbt - _base; const struct vbt_header *vbt = base + offset; const struct bdb_header *bdb; diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index cb1c65739425..4f65cdb38e1b 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -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;
@@ -407,7 +407,7 @@ 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);
@@ -432,7 +432,7 @@ 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);
@@ -519,14 +519,14 @@ 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", @@ -535,34 +535,34 @@ 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) @@ -587,8 +587,8 @@ 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) @@ -599,11 +599,10 @@ 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; } @@ -787,16 +786,16 @@ 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; } }
@@ -809,19 +808,19 @@ 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; @@ -894,10 +893,10 @@ 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); @@ -915,11 +914,11 @@ 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"); @@ -931,7 +930,7 @@ 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; @@ -946,12 +945,12 @@ 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; } diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index e2ab3f6ed022..c8444d5f549f 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -387,7 +387,7 @@ 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; }