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OpenCloudOS-Kernel/drivers/gpu/drm/gma500/psb_drv.c

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/**************************************************************************
* Copyright (c) 2007-2011, Intel Corporation.
* All Rights Reserved.
* Copyright (c) 2008, Tungsten Graphics, Inc. Cedar Park, TX., USA.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
**************************************************************************/
#include <drm/drmP.h>
#include <drm/drm.h>
#include "psb_drv.h"
#include "framebuffer.h"
#include "psb_reg.h"
#include "psb_intel_reg.h"
#include "intel_bios.h"
#include "mid_bios.h"
#include <drm/drm_pciids.h>
#include "power.h"
#include <linux/cpu.h>
#include <linux/notifier.h>
#include <linux/spinlock.h>
#include <linux/pm_runtime.h>
#include <acpi/video.h>
#include <linux/module.h>
#include <asm/set_memory.h>
static struct drm_driver driver;
static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
/*
* The table below contains a mapping of the PCI vendor ID and the PCI Device ID
* to the different groups of PowerVR 5-series chip designs
*
* 0x8086 = Intel Corporation
*
* PowerVR SGX535 - Poulsbo - Intel GMA 500, Intel Atom Z5xx
* PowerVR SGX535 - Moorestown - Intel GMA 600
* PowerVR SGX535 - Oaktrail - Intel GMA 600, Intel Atom Z6xx, E6xx
* PowerVR SGX540 - Medfield - Intel Atom Z2460
* PowerVR SGX544MP2 - Medfield -
* PowerVR SGX545 - Cedartrail - Intel GMA 3600, Intel Atom D2500, N2600
* PowerVR SGX545 - Cedartrail - Intel GMA 3650, Intel Atom D2550, D2700,
* N2800
*/
static const struct pci_device_id pciidlist[] = {
{ 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
{ 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
#if defined(CONFIG_DRM_GMA600)
{ 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
{ 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
{ 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
{ 0x8086, 0x4103, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
{ 0x8086, 0x4104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
{ 0x8086, 0x4105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
{ 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
{ 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
{ 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
#endif
#if defined(CONFIG_DRM_MEDFIELD)
{ 0x8086, 0x0130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
{ 0x8086, 0x0131, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
{ 0x8086, 0x0132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
{ 0x8086, 0x0133, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
{ 0x8086, 0x0134, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
{ 0x8086, 0x0135, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
{ 0x8086, 0x0136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
{ 0x8086, 0x0137, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
#endif
#if defined(CONFIG_DRM_GMA3600)
{ 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0be9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0bea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0beb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0bec, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0bed, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0bee, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
{ 0x8086, 0x0bef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
#endif
{ 0, }
};
MODULE_DEVICE_TABLE(pci, pciidlist);
/*
* Standard IOCTLs.
*/
static const struct drm_ioctl_desc psb_ioctls[] = {
};
static int psb_do_init(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
struct psb_gtt *pg = &dev_priv->gtt;
uint32_t stolen_gtt;
if (pg->mmu_gatt_start & 0x0FFFFFFF) {
dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n");
return -EINVAL;
}
stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4;
stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT;
stolen_gtt = (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages;
dev_priv->gatt_free_offset = pg->mmu_gatt_start +
(stolen_gtt << PAGE_SHIFT) * 1024;
spin_lock_init(&dev_priv->irqmask_lock);
spin_lock_init(&dev_priv->lock_2d);
PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0);
PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1);
PSB_RSGX32(PSB_CR_BIF_BANK1);
/* Do not bypass any MMU access, let them pagefault instead */
PSB_WSGX32((PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_MMU_ER_MASK),
PSB_CR_BIF_CTRL);
PSB_RSGX32(PSB_CR_BIF_CTRL);
psb_spank(dev_priv);
/* mmu_gatt ?? */
PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
PSB_RSGX32(PSB_CR_BIF_TWOD_REQ_BASE); /* Post */
return 0;
}
static void psb_driver_unload(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
/* TODO: Kill vblank etc here */
if (dev_priv) {
if (dev_priv->backlight_device)
gma_backlight_exit(dev);
psb_modeset_cleanup(dev);
if (dev_priv->ops->chip_teardown)
dev_priv->ops->chip_teardown(dev);
psb_intel_opregion_fini(dev);
if (dev_priv->pf_pd) {
psb_mmu_free_pagedir(dev_priv->pf_pd);
dev_priv->pf_pd = NULL;
}
if (dev_priv->mmu) {
struct psb_gtt *pg = &dev_priv->gtt;
down_read(&pg->sem);
psb_mmu_remove_pfn_sequence(
psb_mmu_get_default_pd
(dev_priv->mmu),
pg->mmu_gatt_start,
dev_priv->vram_stolen_size >> PAGE_SHIFT);
up_read(&pg->sem);
psb_mmu_driver_takedown(dev_priv->mmu);
dev_priv->mmu = NULL;
}
psb_gtt_takedown(dev);
if (dev_priv->scratch_page) {
set_pages_wb(dev_priv->scratch_page, 1);
__free_page(dev_priv->scratch_page);
dev_priv->scratch_page = NULL;
}
if (dev_priv->vdc_reg) {
iounmap(dev_priv->vdc_reg);
dev_priv->vdc_reg = NULL;
}
if (dev_priv->sgx_reg) {
iounmap(dev_priv->sgx_reg);
dev_priv->sgx_reg = NULL;
}
if (dev_priv->aux_reg) {
iounmap(dev_priv->aux_reg);
dev_priv->aux_reg = NULL;
}
pci_dev_put(dev_priv->aux_pdev);
pci_dev_put(dev_priv->lpc_pdev);
/* Destroy VBT data */
psb_intel_destroy_bios(dev);
kfree(dev_priv);
dev->dev_private = NULL;
}
gma_power_uninit(dev);
}
static int psb_driver_load(struct drm_device *dev, unsigned long flags)
{
struct drm_psb_private *dev_priv;
unsigned long resource_start, resource_len;
unsigned long irqflags;
int ret = -ENOMEM;
struct drm_connector *connector;
struct gma_encoder *gma_encoder;
struct psb_gtt *pg;
/* allocating and initializing driver private data */
dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
if (dev_priv == NULL)
return -ENOMEM;
dev_priv->ops = (struct psb_ops *)flags;
dev_priv->dev = dev;
dev->dev_private = (void *) dev_priv;
pg = &dev_priv->gtt;
pci_set_master(dev->pdev);
dev_priv->num_pipe = dev_priv->ops->pipes;
resource_start = pci_resource_start(dev->pdev, PSB_MMIO_RESOURCE);
dev_priv->vdc_reg =
ioremap(resource_start + PSB_VDC_OFFSET, PSB_VDC_SIZE);
if (!dev_priv->vdc_reg)
goto out_err;
dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset,
PSB_SGX_SIZE);
if (!dev_priv->sgx_reg)
goto out_err;
if (IS_MRST(dev)) {
int domain = pci_domain_nr(dev->pdev->bus);
dev_priv->aux_pdev =
pci_get_domain_bus_and_slot(domain, 0,
PCI_DEVFN(3, 0));
if (dev_priv->aux_pdev) {
resource_start = pci_resource_start(dev_priv->aux_pdev,
PSB_AUX_RESOURCE);
resource_len = pci_resource_len(dev_priv->aux_pdev,
PSB_AUX_RESOURCE);
dev_priv->aux_reg = ioremap_nocache(resource_start,
resource_len);
if (!dev_priv->aux_reg)
goto out_err;
DRM_DEBUG_KMS("Found aux vdc");
} else {
/* Couldn't find the aux vdc so map to primary vdc */
dev_priv->aux_reg = dev_priv->vdc_reg;
DRM_DEBUG_KMS("Couldn't find aux pci device");
}
dev_priv->gmbus_reg = dev_priv->aux_reg;
dev_priv->lpc_pdev =
pci_get_domain_bus_and_slot(domain, 0,
PCI_DEVFN(31, 0));
if (dev_priv->lpc_pdev) {
pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,
&dev_priv->lpc_gpio_base);
pci_write_config_dword(dev_priv->lpc_pdev, PSB_LPC_GBA,
(u32)dev_priv->lpc_gpio_base | (1L<<31));
pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,
&dev_priv->lpc_gpio_base);
dev_priv->lpc_gpio_base &= 0xffc0;
if (dev_priv->lpc_gpio_base)
DRM_DEBUG_KMS("Found LPC GPIO at 0x%04x\n",
dev_priv->lpc_gpio_base);
else {
pci_dev_put(dev_priv->lpc_pdev);
dev_priv->lpc_pdev = NULL;
}
}
} else {
dev_priv->gmbus_reg = dev_priv->vdc_reg;
}
psb_intel_opregion_setup(dev);
ret = dev_priv->ops->chip_setup(dev);
if (ret)
goto out_err;
/* Init OSPM support */
gma_power_init(dev);
ret = -ENOMEM;
dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO);
if (!dev_priv->scratch_page)
goto out_err;
set_pages_uc(dev_priv->scratch_page, 1);
ret = psb_gtt_init(dev, 0);
if (ret)
goto out_err;
dev_priv->mmu = psb_mmu_driver_init(dev, 1, 0, 0);
if (!dev_priv->mmu)
goto out_err;
dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);
if (!dev_priv->pf_pd)
goto out_err;
ret = psb_do_init(dev);
if (ret)
return ret;
/* Add stolen memory to SGX MMU */
down_read(&pg->sem);
ret = psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd(dev_priv->mmu),
dev_priv->stolen_base >> PAGE_SHIFT,
pg->gatt_start,
pg->stolen_size >> PAGE_SHIFT, 0);
up_read(&pg->sem);
psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);
psb_mmu_set_pd_context(dev_priv->pf_pd, 1);
PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE);
PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
acpi_video_register();
/* Setup vertical blanking handling */
ret = drm_vblank_init(dev, dev_priv->num_pipe);
if (ret)
goto out_err;
/*
* Install interrupt handlers prior to powering off SGX or else we will
* crash.
*/
dev_priv->vdc_irq_mask = 0;
dev_priv->pipestat[0] = 0;
dev_priv->pipestat[1] = 0;
dev_priv->pipestat[2] = 0;
spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
drm_irq_install(dev, dev->pdev->irq);
dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
dev->driver->get_vblank_counter = psb_get_vblank_counter;
psb_modeset_init(dev);
psb_fbdev_init(dev);
drm_kms_helper_poll_init(dev);
/* Only add backlight support if we have LVDS output */
list_for_each_entry(connector, &dev->mode_config.connector_list,
head) {
gma_encoder = gma_attached_encoder(connector);
switch (gma_encoder->type) {
case INTEL_OUTPUT_LVDS:
case INTEL_OUTPUT_MIPI:
ret = gma_backlight_init(dev);
break;
}
}
if (ret)
return ret;
psb_intel_opregion_enable_asle(dev);
#if 0
/* Enable runtime pm at last */
pm_runtime_enable(&dev->pdev->dev);
pm_runtime_set_active(&dev->pdev->dev);
#endif
/* Intel drm driver load is done, continue doing pvr load */
return 0;
out_err:
psb_driver_unload(dev);
return ret;
}
static inline void get_brightness(struct backlight_device *bd)
{
#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
if (bd) {
bd->props.brightness = bd->ops->get_brightness(bd);
backlight_update_status(bd);
}
#endif
}
static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
struct drm_file *file_priv = filp->private_data;
struct drm_device *dev = file_priv->minor->dev;
struct drm_psb_private *dev_priv = dev->dev_private;
static unsigned int runtime_allowed;
if (runtime_allowed == 1 && dev_priv->is_lvds_on) {
runtime_allowed++;
pm_runtime_allow(&dev->pdev->dev);
dev_priv->rpm_enabled = 1;
}
return drm_ioctl(filp, cmd, arg);
/* FIXME: do we need to wrap the other side of this */
}
static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
return drm_get_pci_dev(pdev, ent, &driver);
}
static void psb_pci_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
drm_put_dev(dev);
}
static const struct dev_pm_ops psb_pm_ops = {
.resume = gma_power_resume,
.suspend = gma_power_suspend,
.thaw = gma_power_thaw,
.freeze = gma_power_freeze,
.restore = gma_power_restore,
.runtime_suspend = psb_runtime_suspend,
.runtime_resume = psb_runtime_resume,
.runtime_idle = psb_runtime_idle,
};
static const struct vm_operations_struct psb_gem_vm_ops = {
.fault = psb_gem_fault,
.open = drm_gem_vm_open,
.close = drm_gem_vm_close,
};
static const struct file_operations psb_gem_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = psb_unlocked_ioctl,
.compat_ioctl = drm_compat_ioctl,
.mmap = drm_gem_mmap,
.poll = drm_poll,
.read = drm_read,
};
static struct drm_driver driver = {
.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \
DRIVER_MODESET | DRIVER_GEM,
.load = psb_driver_load,
.unload = psb_driver_unload,
.lastclose = drm_fb_helper_lastclose,
.num_ioctls = ARRAY_SIZE(psb_ioctls),
.irq_preinstall = psb_irq_preinstall,
.irq_postinstall = psb_irq_postinstall,
.irq_uninstall = psb_irq_uninstall,
.irq_handler = psb_irq_handler,
.enable_vblank = psb_enable_vblank,
.disable_vblank = psb_disable_vblank,
.get_vblank_counter = psb_get_vblank_counter,
.gem_free_object = psb_gem_free_object,
.gem_vm_ops = &psb_gem_vm_ops,
.dumb_create = psb_gem_dumb_create,
.ioctls = psb_ioctls,
.fops = &psb_gem_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL
};
static struct pci_driver psb_pci_driver = {
.name = DRIVER_NAME,
.id_table = pciidlist,
.probe = psb_pci_probe,
.remove = psb_pci_remove,
.driver.pm = &psb_pm_ops,
};
static int __init psb_init(void)
{
return pci_register_driver(&psb_pci_driver);
}
static void __exit psb_exit(void)
{
pci_unregister_driver(&psb_pci_driver);
}
late_initcall(psb_init);
module_exit(psb_exit);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
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