kolibrios/drivers/video/Intel-2D/sna.c

//#include "../bitmap.h"

#include <memory.h>
#include <malloc.h>

#include "sna.h"

#include <pixlib2.h>

static struct sna_fb sna_fb;

typedef struct __attribute__((packed))
{
  unsigned      handle;
  unsigned      io_code;
  void          *input;
  int           inp_size;
  void          *output;
  int           out_size;
}ioctl_t;


static int call_service(ioctl_t *io)
{
  int retval;

  asm volatile("int $0x40"
      :"=a"(retval)
      :"a"(68),"b"(17),"c"(io)
      :"memory","cc");

  return retval;
};

const struct intel_device_info *
intel_detect_chipset(struct pci_device *pci);

//struct kgem_bo *create_bo(bitmap_t *bitmap);

static bool sna_solid_cache_init(struct sna *sna);

struct sna *sna_device;

static void no_render_reset(struct sna *sna)
{
	(void)sna;
}

void no_render_init(struct sna *sna)
{
    struct sna_render *render = &sna->render;

    memset (render,0, sizeof (*render));

    render->prefer_gpu = PREFER_GPU_BLT;

    render->vertices = render->vertex_data;
    render->vertex_size = ARRAY_SIZE(render->vertex_data);

//    render->composite = no_render_composite;

//    render->copy_boxes = no_render_copy_boxes;
//    render->copy = no_render_copy;

//    render->fill_boxes = no_render_fill_boxes;
//    render->fill = no_render_fill;
//    render->fill_one = no_render_fill_one;
//    render->clear = no_render_clear;

    render->reset = no_render_reset;
//    render->flush = no_render_flush;
//    render->fini = no_render_fini;

//    sna->kgem.context_switch = no_render_context_switch;
//    sna->kgem.retire = no_render_retire;

      if (sna->kgem.gen >= 60)
        sna->kgem.ring = KGEM_RENDER;

      sna_vertex_init(sna);
}

void sna_vertex_init(struct sna *sna)
{
//    pthread_mutex_init(&sna->render.lock, NULL);
//    pthread_cond_init(&sna->render.wait, NULL);
    sna->render.active = 0;
}

bool sna_accel_init(struct sna *sna)
{
    const char *backend;

//    list_init(&sna->deferred_free);
//    list_init(&sna->dirty_pixmaps);
//    list_init(&sna->active_pixmaps);
//    list_init(&sna->inactive_clock[0]);
//    list_init(&sna->inactive_clock[1]);

//    sna_accel_install_timers(sna);


    backend = "no";
    no_render_init(sna);

 	if (sna->info->gen >= 0100) {
/*	} else if (sna->info->gen >= 070) {
		if (gen7_render_init(sna))
			backend = "IvyBridge";  */
	} else if (sna->info->gen >= 060) {
		if (gen6_render_init(sna))
			backend = "SandyBridge";
/*	} else if (sna->info->gen >= 050) {
		if (gen5_render_init(sna))
			backend = "Ironlake";
	} else if (sna->info->gen >= 040) {
		if (gen4_render_init(sna))
			backend = "Broadwater/Crestline";
	} else if (sna->info->gen >= 030) {
		if (gen3_render_init(sna))
			backend = "gen3";
	} else if (sna->info->gen >= 020) {
		if (gen2_render_init(sna))
			backend = "gen2"; */
	}

	DBG(("%s(backend=%s, prefer_gpu=%x)\n",
	     __FUNCTION__, backend, sna->render.prefer_gpu));

    kgem_reset(&sna->kgem);

//    if (!sna_solid_cache_init(sna))
//        return false;

    sna_device = sna;


    return kgem_init_fb(&sna->kgem, &sna_fb);
}

int sna_init(uint32_t service)
{
    ioctl_t   io;

    static struct pci_device device;
    struct sna *sna;

    DBG(("%s\n", __FUNCTION__));

    sna = malloc(sizeof(struct sna));
    if (sna == NULL)
        return false;

    io.handle   = service;
    io.io_code  = SRV_GET_PCI_INFO;
    io.input    = &device;
    io.inp_size = sizeof(device);
    io.output   = NULL;
    io.out_size = 0;

    if (call_service(&io)!=0)
        return false;

    sna->PciInfo = &device;

  	sna->info = intel_detect_chipset(sna->PciInfo);

    kgem_init(&sna->kgem, service, sna->PciInfo, sna->info->gen);
/*
    if (!xf86ReturnOptValBool(sna->Options,
                  OPTION_RELAXED_FENCING,
                  sna->kgem.has_relaxed_fencing)) {
        xf86DrvMsg(scrn->scrnIndex,
               sna->kgem.has_relaxed_fencing ? X_CONFIG : X_PROBED,
               "Disabling use of relaxed fencing\n");
        sna->kgem.has_relaxed_fencing = 0;
    }
    if (!xf86ReturnOptValBool(sna->Options,
                  OPTION_VMAP,
                  sna->kgem.has_vmap)) {
        xf86DrvMsg(scrn->scrnIndex,
               sna->kgem.has_vmap ? X_CONFIG : X_PROBED,
               "Disabling use of vmap\n");
        sna->kgem.has_vmap = 0;
    }
*/

    /* Disable tiling by default */
    sna->tiling = SNA_TILING_DISABLE;

    /* Default fail-safe value of 75 Hz */
//    sna->vblank_interval = 1000 * 1000 * 1000 / 75;

    sna->flags = 0;

    return sna_accel_init(sna);
}

#if 0

static bool sna_solid_cache_init(struct sna *sna)
{
    struct sna_solid_cache *cache = &sna->render.solid_cache;

    DBG(("%s\n", __FUNCTION__));

    cache->cache_bo =
        kgem_create_linear(&sna->kgem, sizeof(cache->color));
    if (!cache->cache_bo)
        return FALSE;

    /*
     * Initialise [0] with white since it is very common and filling the
     * zeroth slot simplifies some of the checks.
     */
    cache->color[0] = 0xffffffff;
    cache->bo[0] = kgem_create_proxy(cache->cache_bo, 0, sizeof(uint32_t));
    cache->bo[0]->pitch = 4;
    cache->dirty = 1;
    cache->size = 1;
    cache->last = 0;

    return TRUE;
}

void
sna_render_flush_solid(struct sna *sna)
{
    struct sna_solid_cache *cache = &sna->render.solid_cache;

    DBG(("sna_render_flush_solid(size=%d)\n", cache->size));
    assert(cache->dirty);
    assert(cache->size);

    kgem_bo_write(&sna->kgem, cache->cache_bo,
              cache->color, cache->size*sizeof(uint32_t));
    cache->dirty = 0;
    cache->last = 0;
}

static void
sna_render_finish_solid(struct sna *sna, bool force)
{
    struct sna_solid_cache *cache = &sna->render.solid_cache;
    int i;

    DBG(("sna_render_finish_solid(force=%d, domain=%d, busy=%d, dirty=%d)\n",
         force, cache->cache_bo->domain, cache->cache_bo->rq != NULL, cache->dirty));

    if (!force && cache->cache_bo->domain != DOMAIN_GPU)
        return;

    if (cache->dirty)
        sna_render_flush_solid(sna);

    for (i = 0; i < cache->size; i++) {
        if (cache->bo[i] == NULL)
            continue;

        kgem_bo_destroy(&sna->kgem, cache->bo[i]);
        cache->bo[i] = NULL;
    }
    kgem_bo_destroy(&sna->kgem, cache->cache_bo);

    DBG(("sna_render_finish_solid reset\n"));

    cache->cache_bo = kgem_create_linear(&sna->kgem, sizeof(cache->color));
    cache->bo[0] = kgem_create_proxy(cache->cache_bo, 0, sizeof(uint32_t));
    cache->bo[0]->pitch = 4;
    if (force)
        cache->size = 1;
}


struct kgem_bo *
sna_render_get_solid(struct sna *sna, uint32_t color)
{
    struct sna_solid_cache *cache = &sna->render.solid_cache;
    int i;

    DBG(("%s: %08x\n", __FUNCTION__, color));

//    if ((color & 0xffffff) == 0) /* alpha only */
//        return kgem_bo_reference(sna->render.alpha_cache.bo[color>>24]);

    if (color == 0xffffffff) {
        DBG(("%s(white)\n", __FUNCTION__));
        return kgem_bo_reference(cache->bo[0]);
    }

    if (cache->color[cache->last] == color) {
        DBG(("sna_render_get_solid(%d) = %x (last)\n",
             cache->last, color));
        return kgem_bo_reference(cache->bo[cache->last]);
    }

    for (i = 1; i < cache->size; i++) {
        if (cache->color[i] == color) {
            if (cache->bo[i] == NULL) {
                DBG(("sna_render_get_solid(%d) = %x (recreate)\n",
                     i, color));
                goto create;
            } else {
                DBG(("sna_render_get_solid(%d) = %x (old)\n",
                     i, color));
                goto done;
            }
        }
    }

    sna_render_finish_solid(sna, i == ARRAY_SIZE(cache->color));

    i = cache->size++;
    cache->color[i] = color;
    cache->dirty = 1;
    DBG(("sna_render_get_solid(%d) = %x (new)\n", i, color));

create:
    cache->bo[i] = kgem_create_proxy(cache->cache_bo,
                     i*sizeof(uint32_t), sizeof(uint32_t));
    cache->bo[i]->pitch = 4;

done:
    cache->last = i;
    return kgem_bo_reference(cache->bo[i]);
}

#endif


int sna_blit_copy(bitmap_t *src_bitmap, int dst_x, int dst_y,
                  int w, int h, int src_x, int src_y)

{
    struct sna_copy_op copy;
    struct _Pixmap src, dst;
    struct kgem_bo *src_bo;

    memset(&src, 0, sizeof(src));
    memset(&dst, 0, sizeof(dst));

    src.drawable.bitsPerPixel = 32;
    src.drawable.width  = src_bitmap->width;
    src.drawable.height = src_bitmap->height;

    dst.drawable.bitsPerPixel = 32;
    dst.drawable.width  = sna_fb.width;
    dst.drawable.height = sna_fb.height;

    memset(&copy, 0, sizeof(copy));

    src_bo = (struct kgem_bo*)src_bitmap->handle;
    
    if( sna_device->render.copy(sna_device, GXcopy,
                                &src, src_bo,
                                &dst, sna_fb.fb_bo, &copy) )
    {                            
    copy.blt(sna_device, &copy, src_x, src_y, w, h, dst_x, dst_y);
    copy.done(sna_device, &copy);
    }

    kgem_submit(&sna_device->kgem);

//    __asm__ __volatile__("int3");

};

int sna_create_bitmap(bitmap_t *bitmap)
{
	struct kgem_bo *bo;

    bo = kgem_create_2d(&sna_device->kgem, bitmap->width, bitmap->height,
                        32,I915_TILING_NONE, CREATE_CPU_MAP);

    if(bo == NULL)
        goto err_1;
     
    void *map = kgem_bo_map(&sna_device->kgem, bo);
    if(map == NULL)
        goto err_2;
        
    bitmap->handle = (uint32_t)bo;
    bitmap->pitch  = bo->pitch;
    bitmap->data   = map;
    
    return 0;
    
err_2:
    kgem_bo_destroy(&sna_device->kgem, bo);
    
err_1:
    return -1;        
};
/*

int sna_blit_tex(bitmap_t *dst_bitmap, int dst_x, int dst_y,
                  int w, int h, bitmap_t *src_bitmap, int src_x, int src_y,
                  bitmap_t *mask_bitmap)

{
    struct sna_composite_op cop;
    batchbuffer_t  execbuffer;
    BoxRec box;

    struct kgem_bo src_bo, mask_bo, dst_bo;

    memset(&cop, 0, sizeof(cop));
    memset(&execbuffer,  0, sizeof(execbuffer));
    memset(&src_bo, 0, sizeof(src_bo));
    memset(&dst_bo, 0, sizeof(dst_bo));
    memset(&mask_bo, 0, sizeof(mask_bo));

    src_bo.gaddr  = src_bitmap->gaddr;
    src_bo.pitch  = src_bitmap->pitch;
    src_bo.tiling = 0;

    dst_bo.gaddr  = dst_bitmap->gaddr;
    dst_bo.pitch  = dst_bitmap->pitch;
    dst_bo.tiling = 0;

    mask_bo.gaddr  = mask_bitmap->gaddr;
    mask_bo.pitch  = mask_bitmap->pitch;
    mask_bo.tiling = 0;

    box.x1 = dst_x;
    box.y1 = dst_y;
    box.x2 = dst_x+w;
    box.y2 = dst_y+h;

    sna_device->render.composite(sna_device, 0,
                                 src_bitmap, &src_bo,
                                 mask_bitmap, &mask_bo,
                                 dst_bitmap, &dst_bo,
                                 src_x, src_y,
                                 src_x, src_y,
                                 dst_x, dst_y,
                                 w, h, &cop);

    cop.box(sna_device, &cop, &box);
    cop.done(sna_device, &cop);

    INIT_LIST_HEAD(&execbuffer.objects);
    list_add_tail(&src_bitmap->obj->exec_list, &execbuffer.objects);
    list_add_tail(&mask_bitmap->obj->exec_list, &execbuffer.objects);

    _kgem_submit(&sna_device->kgem, &execbuffer);

};

*/

static const struct intel_device_info intel_generic_info = {
	.gen = -1,
};

static const struct intel_device_info intel_i915_info = {
	.gen = 030,
};
static const struct intel_device_info intel_i945_info = {
	.gen = 031,
};

static const struct intel_device_info intel_g33_info = {
	.gen = 033,
};

static const struct intel_device_info intel_i965_info = {
	.gen = 040,
};

static const struct intel_device_info intel_g4x_info = {
	.gen = 045,
};

static const struct intel_device_info intel_ironlake_info = {
	.gen = 050,
};

static const struct intel_device_info intel_sandybridge_info = {
	.gen = 060,
};

static const struct intel_device_info intel_ivybridge_info = {
	.gen = 070,
};

static const struct intel_device_info intel_valleyview_info = {
	.gen = 071,
};

static const struct intel_device_info intel_haswell_info = {
	.gen = 075,
};

#define INTEL_DEVICE_MATCH(d,i) \
    { 0x8086, (d), PCI_MATCH_ANY, PCI_MATCH_ANY, 0x3 << 16, 0xff << 16, (intptr_t)(i) }


static const struct pci_id_match intel_device_match[] = {


	INTEL_DEVICE_MATCH (PCI_CHIP_I915_G, &intel_i915_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_E7221_G, &intel_i915_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_I915_GM, &intel_i915_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_I945_G, &intel_i945_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_I945_GM, &intel_i945_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_I945_GME, &intel_i945_info ),

	INTEL_DEVICE_MATCH (PCI_CHIP_PINEVIEW_M, &intel_g33_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_PINEVIEW_G, &intel_g33_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_G33_G, &intel_g33_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_Q33_G, &intel_g33_info ),
	/* Another marketing win: Q35 is another g33 device not a gen4 part
	 * like its G35 brethren.
	 */
	INTEL_DEVICE_MATCH (PCI_CHIP_Q35_G, &intel_g33_info ),

	INTEL_DEVICE_MATCH (PCI_CHIP_I965_G, &intel_i965_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_G35_G, &intel_i965_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_I965_Q, &intel_i965_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_I946_GZ, &intel_i965_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_I965_GM, &intel_i965_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_I965_GME, &intel_i965_info ),

	INTEL_DEVICE_MATCH (PCI_CHIP_GM45_GM, &intel_g4x_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_G45_E_G, &intel_g4x_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_G45_G, &intel_g4x_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_Q45_G, &intel_g4x_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_G41_G, &intel_g4x_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_B43_G, &intel_g4x_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_B43_G1, &intel_g4x_info ),

	INTEL_DEVICE_MATCH (PCI_CHIP_IRONLAKE_D_G, &intel_ironlake_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_IRONLAKE_M_G, &intel_ironlake_info ),

	INTEL_DEVICE_MATCH (PCI_CHIP_SANDYBRIDGE_GT1, &intel_sandybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_SANDYBRIDGE_GT2, &intel_sandybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_SANDYBRIDGE_GT2_PLUS, &intel_sandybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_SANDYBRIDGE_M_GT1, &intel_sandybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_SANDYBRIDGE_M_GT2, &intel_sandybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_SANDYBRIDGE_M_GT2_PLUS, &intel_sandybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_SANDYBRIDGE_S_GT, &intel_sandybridge_info ),

	INTEL_DEVICE_MATCH (PCI_CHIP_IVYBRIDGE_M_GT1, &intel_ivybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_IVYBRIDGE_M_GT2, &intel_ivybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_IVYBRIDGE_D_GT1, &intel_ivybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_IVYBRIDGE_D_GT2, &intel_ivybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_IVYBRIDGE_S_GT1, &intel_ivybridge_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_IVYBRIDGE_S_GT2, &intel_ivybridge_info ),

	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_D_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_D_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_D_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_M_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_M_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_M_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_S_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_S_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_S_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_D_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_D_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_D_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_M_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_M_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_M_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_S_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_S_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_SDV_S_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_D_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_D_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_D_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_M_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_M_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_M_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_S_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_S_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_ULT_S_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_D_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_D_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_D_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_M_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_M_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_M_GT2_PLUS, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_S_GT1, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_S_GT2, &intel_haswell_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_HASWELL_CRW_S_GT2_PLUS, &intel_haswell_info ),

	INTEL_DEVICE_MATCH (PCI_CHIP_VALLEYVIEW_PO, &intel_valleyview_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_VALLEYVIEW_1, &intel_valleyview_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_VALLEYVIEW_2, &intel_valleyview_info ),
	INTEL_DEVICE_MATCH (PCI_CHIP_VALLEYVIEW_3, &intel_valleyview_info ),

	INTEL_DEVICE_MATCH (PCI_MATCH_ANY, &intel_generic_info ),

	{ 0, 0, 0 },
};

const struct pci_id_match *PciDevMatch(uint16_t dev,const struct pci_id_match *list)
{
    while(list->device_id)
    {
        if(dev==list->device_id)
            return list;
        list++;
    }
    return NULL;
}

const struct intel_device_info *
intel_detect_chipset(struct pci_device *pci)
{
    const struct pci_id_match *ent = NULL;
	const char *name = NULL;
	int i;

    ent = PciDevMatch(pci->device_id, intel_device_match); 
    
    if(ent != NULL)
        return (const struct intel_device_info*)ent->match_data;
    else    
        return &intel_generic_info;
        
#if 0         
	for (i = 0; intel_chipsets[i].name != NULL; i++) {
		if (DEVICE_ID(pci) == intel_chipsets[i].token) {
			name = intel_chipsets[i].name;
			break;
		}
	}
	if (name == NULL) {
		xf86DrvMsg(scrn->scrnIndex, X_WARNING, "unknown chipset\n");
		name = "unknown";
	} else {
		xf86DrvMsg(scrn->scrnIndex, from,
			   "Integrated Graphics Chipset: Intel(R) %s\n",
			   name);
	}

	scrn->chipset = name;
#endif
	
}


int drmIoctl(int fd, unsigned long request, void *arg)
{
    ioctl_t  io;

    io.handle   = fd;
    io.io_code  = request;
    io.input    = arg;
    io.inp_size = 64;
    io.output   = NULL;
    io.out_size = 0;

    return call_service(&io);
}