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#include "drmP.h"
#include "drm.h"
#include "drm_sarea.h"
#include "i915_drm.h"
#include "i915_drv.h"
/**
* i915_driver_load - setup chip and create an initial config
* @dev: DRM device
* @flags: startup flags
*
* The driver load routine has to do several things:
* - drive output discovery via intel_modeset_init()
* - initialize the memory manager
* - allocate initial config memory
* - setup the DRM framebuffer with the allocated memory
*/
int i915_driver_load(drm_device_t *dev, unsigned long flags)
{
drm_i915_private_t *dev_priv;
drm_i915_init_t init;
drm_buffer_object_t *entry;
struct drm_framebuffer *fb;
int ret;
dev_priv = drm_alloc(sizeof(drm_i915_private_t), DRM_MEM_DRIVER);
if (dev_priv == NULL)
return DRM_ERR(ENOMEM);
memset(dev_priv, 0, sizeof(drm_i915_private_t));
dev->dev_private = (void *)dev_priv;
// dev_priv->flags = flags;
/* i915 has 4 more counters */
dev->counters += 4;
dev->types[6] = _DRM_STAT_IRQ;
dev->types[7] = _DRM_STAT_PRIMARY;
dev->types[8] = _DRM_STAT_SECONDARY;
dev->types[9] = _DRM_STAT_DMA;
if (IS_I9XX(dev)) {
dev_priv->mmiobase = drm_get_resource_start(dev, 0);
dev_priv->mmiolen = drm_get_resource_len(dev, 0);
dev->mode_config.fb_base = dev_priv->baseaddr = drm_get_resource_start(dev, 2) & 0xff000000;
} else if (drm_get_resource_start(dev, 1)) {
dev_priv->mmiobase = drm_get_resource_start(dev, 1);
dev_priv->mmiolen = drm_get_resource_len(dev, 1);
dev->mode_config.fb_base = dev_priv->baseaddr = drm_get_resource_start(dev, 0) & 0xff000000;
} else {
DRM_ERROR("Unable to find MMIO registers\n");
return -ENODEV;
}
ret = drm_addmap(dev, dev_priv->mmiobase, dev_priv->mmiolen,
_DRM_REGISTERS, _DRM_READ_ONLY, &dev_priv->mmio_map);
if (ret != 0) {
DRM_ERROR("Cannot add mapping for MMIO registers\n");
return ret;
}
ret = drm_setup(dev);
if (ret) {
DRM_ERROR("drm_setup failed\n");
return ret;
}
DRM_GETSAREA();
if (!dev_priv->sarea) {
DRM_ERROR("can not find sarea!\n");
dev->dev_private = (void *)dev_priv;
i915_dma_cleanup(dev);
return DRM_ERR(EINVAL);
}
/* FIXME: assume sarea_priv is right after SAREA */
dev_priv->sarea_priv = dev_priv->sarea->handle + sizeof(drm_sarea_t);
/*
* Initialize the memory manager for local and AGP space
*/
drm_bo_driver_init(dev);
/* FIXME: initial stolen area 8M init */
#define SCANOUT_SIZE 1024*1024*8 /* big enough for 2048x1024 32bpp */
drm_bo_init_mm(dev, DRM_BO_MEM_PRIV0, dev->mode_config.fb_base,
SCANOUT_SIZE);
/* Allocate scanout buffer and command ring */
/* FIXME: types and other args correct? */
drm_buffer_object_create(dev, SCANOUT_SIZE, drm_bo_type_dc,
DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE |
DRM_BO_FLAG_MEM_PRIV0 | DRM_BO_FLAG_NO_MOVE,
0, PAGE_SIZE, 0,
&entry);
DRM_DEBUG("allocated bo, start: 0x%lx, offset: 0x%lx\n",
entry->buffer_start, entry->offset);
intel_modeset_init(dev);
fb = drm_framebuffer_create(dev);
if (!fb) {
DRM_ERROR("failed to allocate fb\n");
return -EINVAL;
}
fb->width = 1024;
fb->height = 768;
fb->pitch = 1024;
fb->bits_per_pixel = 32;
fb->depth = 32;
fb->offset = entry->offset;
fb->bo = entry;
drm_initial_config(dev, fb, false);
drmfb_probe(dev, fb);
drm_set_desired_modes(dev);
#if 0
/* FIXME: command ring needs AGP space, do we own it at this point? */
dev_priv->ring.Start = dev_priv->baseaddr;
dev_priv->ring.End = 128*1024;
dev_priv->ring.Size = 128*1024;
dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
dev_priv->ring.map.offset = dev_priv->ring.Start;
dev_priv->ring.map.size = dev_priv->ring.Size;
dev_priv->ring.map.type = 0;
dev_priv->ring.map.flags = 0;
dev_priv->ring.map.mtrr = 0;
drm_core_ioremap(&dev_priv->ring.map, dev);
if (dev_priv->ring.map.handle == NULL) {
dev->dev_private = (void *)dev_priv;
i915_dma_cleanup(dev);
DRM_ERROR("can not ioremap virtual address for"
" ring buffer\n");
return DRM_ERR(ENOMEM);
}
dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
dev_priv->cpp = 4;
dev_priv->sarea_priv->pf_current_page = 0;
/* We are using separate values as placeholders for mechanisms for
* private backbuffer/depthbuffer usage.
*/
dev_priv->use_mi_batchbuffer_start = 0;
/* Allow hardware batchbuffers unless told otherwise.
*/
dev_priv->allow_batchbuffer = 1;
/* Program Hardware Status Page */
dev_priv->status_page_dmah = drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE,
0xffffffff);
if (!dev_priv->status_page_dmah) {
dev->dev_private = (void *)dev_priv;
i915_dma_cleanup(dev);
DRM_ERROR("Can not allocate hardware status page\n");
return DRM_ERR(ENOMEM);
}
dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr;
dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;
memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
I915_WRITE(0x02080, dev_priv->dma_status_page);
DRM_DEBUG("Enabled hardware status page\n");
#endif
return 0;
}
int i915_driver_unload(drm_device_t *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_framebuffer *fb;
/* FIXME: remove framebuffer */
//intel_modeset_cleanup(dev);
drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
dev->dev_private = NULL;
return 0;
}
void i915_driver_lastclose(drm_device_t * dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
i915_mem_takedown(&(dev_priv->agp_heap));
i915_dma_cleanup(dev);
dev_priv->mmio_map = NULL;
}
void i915_driver_preclose(drm_device_t * dev, DRMFILE filp)
{
drm_i915_private_t *dev_priv = dev->dev_private;
i915_mem_release(dev, filp, dev_priv->agp_heap);
}
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