dri: Allow selective generation of accum. buffer configs

[mesa.git] / src / mesa / drivers / dri / radeon / radeon_screen.c

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                     VA Linux Systems Inc., Fremont, California.

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/**
 * \file radeon_screen.c
 * Screen initialization functions for the Radeon driver.
 *
 * \author Kevin E. Martin <martin@valinux.com>
 * \author  Gareth Hughes <gareth@valinux.com>
 */

#include <errno.h>
#include "main/glheader.h"
#include "main/imports.h"
#include "main/mtypes.h"
#include "main/framebuffer.h"
#include "main/renderbuffer.h"

#define STANDALONE_MMIO
#include "radeon_chipset.h"
#include "radeon_macros.h"
#include "radeon_screen.h"
#include "radeon_common.h"
#if defined(RADEON_R100)
#include "radeon_context.h"
#include "radeon_tex.h"
#elif defined(RADEON_R200)
#include "r200_context.h"
#include "r200_ioctl.h"
#include "r200_tex.h"
#elif defined(RADEON_R300)
#include "r300_context.h"
#include "r300_tex.h"
#elif defined(RADEON_R600)
#include "r600_context.h"
#include "r700_driconf.h" /* +r6/r7 */
#include "r600_tex.h"     /* +r6/r7 */
#endif

#include "utils.h"
#include "vblank.h"

#include "radeon_bocs_wrapper.h"

#include "GL/internal/dri_interface.h"

/* Radeon configuration
 */
#include "xmlpool.h"

#define DRI_CONF_COMMAND_BUFFER_SIZE(def,min,max) \
DRI_CONF_OPT_BEGIN_V(command_buffer_size,int,def, # min ":" # max ) \
        DRI_CONF_DESC(en,"Size of command buffer (in KB)") \
        DRI_CONF_DESC(de,"Grösse des Befehlspuffers (in KB)") \
DRI_CONF_OPT_END

#if defined(RADEON_R100)        /* R100 */
PUBLIC const char __driConfigOptions[] =
DRI_CONF_BEGIN
    DRI_CONF_SECTION_PERFORMANCE
        DRI_CONF_TCL_MODE(DRI_CONF_TCL_CODEGEN)
        DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
        DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
        DRI_CONF_MAX_TEXTURE_UNITS(3,2,3)
        DRI_CONF_HYPERZ(false)
        DRI_CONF_COMMAND_BUFFER_SIZE(8, 8, 32)
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_QUALITY
        DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
        DRI_CONF_DEF_MAX_ANISOTROPY(1.0,"1.0,2.0,4.0,8.0,16.0")
        DRI_CONF_NO_NEG_LOD_BIAS(false)
        DRI_CONF_FORCE_S3TC_ENABLE(false)
        DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER)
        DRI_CONF_ROUND_MODE(DRI_CONF_ROUND_TRUNC)
        DRI_CONF_DITHER_MODE(DRI_CONF_DITHER_XERRORDIFF)
        DRI_CONF_ALLOW_LARGE_TEXTURES(2)
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_DEBUG
        DRI_CONF_NO_RAST(false)
    DRI_CONF_SECTION_END
DRI_CONF_END;
static const GLuint __driNConfigOptions = 15;

#elif defined(RADEON_R200)

PUBLIC const char __driConfigOptions[] =
DRI_CONF_BEGIN
    DRI_CONF_SECTION_PERFORMANCE
        DRI_CONF_TCL_MODE(DRI_CONF_TCL_CODEGEN)
        DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
        DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
        DRI_CONF_MAX_TEXTURE_UNITS(6,2,6)
        DRI_CONF_HYPERZ(false)
        DRI_CONF_COMMAND_BUFFER_SIZE(8, 8, 32)
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_QUALITY
        DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
        DRI_CONF_DEF_MAX_ANISOTROPY(1.0,"1.0,2.0,4.0,8.0,16.0")
        DRI_CONF_NO_NEG_LOD_BIAS(false)
        DRI_CONF_FORCE_S3TC_ENABLE(false)
        DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER)
        DRI_CONF_ROUND_MODE(DRI_CONF_ROUND_TRUNC)
        DRI_CONF_DITHER_MODE(DRI_CONF_DITHER_XERRORDIFF)
        DRI_CONF_ALLOW_LARGE_TEXTURES(2)
        DRI_CONF_TEXTURE_BLEND_QUALITY(1.0,"0.0:1.0")
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_DEBUG
        DRI_CONF_NO_RAST(false)
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_SOFTWARE
        DRI_CONF_NV_VERTEX_PROGRAM(false)
    DRI_CONF_SECTION_END
DRI_CONF_END;
static const GLuint __driNConfigOptions = 17;

#elif defined(RADEON_R300) || defined(RADEON_R600)

#define DRI_CONF_FP_OPTIMIZATION_SPEED   0
#define DRI_CONF_FP_OPTIMIZATION_QUALITY 1

/* TODO: integrate these into xmlpool.h! */
#define DRI_CONF_MAX_TEXTURE_IMAGE_UNITS(def,min,max) \
DRI_CONF_OPT_BEGIN_V(texture_image_units,int,def, # min ":" # max ) \
        DRI_CONF_DESC(en,"Number of texture image units") \
        DRI_CONF_DESC(de,"Anzahl der Textureinheiten") \
DRI_CONF_OPT_END

#define DRI_CONF_MAX_TEXTURE_COORD_UNITS(def,min,max) \
DRI_CONF_OPT_BEGIN_V(texture_coord_units,int,def, # min ":" # max ) \
        DRI_CONF_DESC(en,"Number of texture coordinate units") \
        DRI_CONF_DESC(de,"Anzahl der Texturkoordinateneinheiten") \
DRI_CONF_OPT_END



#define DRI_CONF_DISABLE_S3TC(def) \
DRI_CONF_OPT_BEGIN(disable_s3tc,bool,def) \
        DRI_CONF_DESC(en,"Disable S3TC compression") \
DRI_CONF_OPT_END

#define DRI_CONF_DISABLE_FALLBACK(def) \
DRI_CONF_OPT_BEGIN(disable_lowimpact_fallback,bool,def) \
        DRI_CONF_DESC(en,"Disable Low-impact fallback") \
DRI_CONF_OPT_END

#define DRI_CONF_DISABLE_DOUBLE_SIDE_STENCIL(def) \
DRI_CONF_OPT_BEGIN(disable_stencil_two_side,bool,def) \
        DRI_CONF_DESC(en,"Disable GL_EXT_stencil_two_side") \
DRI_CONF_OPT_END

#define DRI_CONF_FP_OPTIMIZATION(def) \
DRI_CONF_OPT_BEGIN_V(fp_optimization,enum,def,"0:1") \
        DRI_CONF_DESC_BEGIN(en,"Fragment Program optimization") \
                DRI_CONF_ENUM(0,"Optimize for Speed") \
                DRI_CONF_ENUM(1,"Optimize for Quality") \
        DRI_CONF_DESC_END \
DRI_CONF_OPT_END

PUBLIC const char __driConfigOptions[] =
DRI_CONF_BEGIN
        DRI_CONF_SECTION_PERFORMANCE
                DRI_CONF_TCL_MODE(DRI_CONF_TCL_CODEGEN)
                DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
                DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
                DRI_CONF_MAX_TEXTURE_IMAGE_UNITS(8, 2, 8)
                DRI_CONF_MAX_TEXTURE_COORD_UNITS(8, 2, 8)
                DRI_CONF_COMMAND_BUFFER_SIZE(8, 8, 32)
                DRI_CONF_DISABLE_FALLBACK(true)
                DRI_CONF_DISABLE_DOUBLE_SIDE_STENCIL(false)
        DRI_CONF_SECTION_END
        DRI_CONF_SECTION_QUALITY
                DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
                DRI_CONF_DEF_MAX_ANISOTROPY(1.0, "1.0,2.0,4.0,8.0,16.0")
                DRI_CONF_FORCE_S3TC_ENABLE(false)
                DRI_CONF_DISABLE_S3TC(false)
                DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER)
                DRI_CONF_ROUND_MODE(DRI_CONF_ROUND_TRUNC)
                DRI_CONF_DITHER_MODE(DRI_CONF_DITHER_XERRORDIFF)
                DRI_CONF_FP_OPTIMIZATION(DRI_CONF_FP_OPTIMIZATION_SPEED)
        DRI_CONF_SECTION_END
        DRI_CONF_SECTION_DEBUG
                DRI_CONF_NO_RAST(false)
        DRI_CONF_SECTION_END
DRI_CONF_END;
static const GLuint __driNConfigOptions = 17;

#endif

static int getSwapInfo( __DRIdrawable *dPriv, __DRIswapInfo * sInfo );

static int
radeonGetParam(__DRIscreen *sPriv, int param, void *value)
{
  int ret;
  drm_radeon_getparam_t gp = { 0 };
  struct drm_radeon_info info = { 0 };

  if (sPriv->drm_version.major >= 2) {
      info.value = (uint64_t)(uintptr_t)value;
      switch (param) {
      case RADEON_PARAM_DEVICE_ID:
          info.request = RADEON_INFO_DEVICE_ID;
          break;
      case RADEON_PARAM_NUM_GB_PIPES:
          info.request = RADEON_INFO_NUM_GB_PIPES;
          break;
      case RADEON_PARAM_NUM_Z_PIPES:
          info.request = RADEON_INFO_NUM_Z_PIPES;
          break;
      default:
          return -EINVAL;
      }
      ret = drmCommandWriteRead(sPriv->fd, DRM_RADEON_INFO, &info, sizeof(info));
  } else {
      gp.param = param;
      gp.value = value;

      ret = drmCommandWriteRead(sPriv->fd, DRM_RADEON_GETPARAM, &gp, sizeof(gp));
  }
  return ret;
}

static const __DRIconfig **
radeonFillInModes( __DRIscreen *psp,
                   unsigned pixel_bits, unsigned depth_bits,
                   unsigned stencil_bits, GLboolean have_back_buffer )
{
    __DRIconfig **configs;
    __GLcontextModes *m;
    unsigned depth_buffer_factor;
    unsigned back_buffer_factor;
    int i;

    /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
     * enough to add support.  Basically, if a context is created with an
     * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
     * will never be used.
     */
    static const GLenum back_buffer_modes[] = {
        GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
    };

    uint8_t depth_bits_array[2];
    uint8_t stencil_bits_array[2];
    uint8_t msaa_samples_array[1];

    depth_bits_array[0] = depth_bits;
    depth_bits_array[1] = depth_bits;

    /* Just like with the accumulation buffer, always provide some modes
     * with a stencil buffer.  It will be a sw fallback, but some apps won't
     * care about that.
     */
    stencil_bits_array[0] = stencil_bits;
    stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;

    msaa_samples_array[0] = 0;

    depth_buffer_factor = (stencil_bits == 0) ? 2 : 1;
    back_buffer_factor  = (have_back_buffer) ? 2 : 1;

    if (pixel_bits == 16) {
        __DRIconfig **configs_a8r8g8b8;
        __DRIconfig **configs_r5g6b5;

        configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
                                          depth_bits_array, stencil_bits_array,
                                          depth_buffer_factor, back_buffer_modes,
                                          back_buffer_factor, msaa_samples_array,
                                          1, TRUE);
        configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
                                            depth_bits_array, stencil_bits_array,
                                            1, back_buffer_modes, 1,
                                            msaa_samples_array, 1, TRUE);
        configs = driConcatConfigs(configs_r5g6b5, configs_a8r8g8b8);
   } else
        configs = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
                                   depth_bits_array, stencil_bits_array,
                                   depth_buffer_factor,
                                   back_buffer_modes, back_buffer_factor,
                                   msaa_samples_array, 1, TRUE);

    if (configs == NULL) {
        fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
                 __func__, __LINE__ );
        return NULL;
    }

    /* Mark the visual as slow if there are "fake" stencil bits.
     */
    for (i = 0; configs[i]; i++) {
        m = &configs[i]->modes;
        if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
            m->visualRating = GLX_SLOW_CONFIG;
        }
    }

    return (const __DRIconfig **) configs;
}

#if defined(RADEON_R100)
static const __DRItexOffsetExtension radeonTexOffsetExtension = {
    { __DRI_TEX_OFFSET, __DRI_TEX_OFFSET_VERSION },
    radeonSetTexOffset,
};

static const __DRItexBufferExtension radeonTexBufferExtension = {
    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
   radeonSetTexBuffer,
   radeonSetTexBuffer2,
};
#endif

#if defined(RADEON_R200)
static const __DRIallocateExtension r200AllocateExtension = {
    { __DRI_ALLOCATE, __DRI_ALLOCATE_VERSION },
    r200AllocateMemoryMESA,
    r200FreeMemoryMESA,
    r200GetMemoryOffsetMESA
};

static const __DRItexOffsetExtension r200texOffsetExtension = {
    { __DRI_TEX_OFFSET, __DRI_TEX_OFFSET_VERSION },
   r200SetTexOffset,
};

static const __DRItexBufferExtension r200TexBufferExtension = {
    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
   r200SetTexBuffer,
   r200SetTexBuffer2,
};
#endif

#if defined(RADEON_R300)
static const __DRItexOffsetExtension r300texOffsetExtension = {
    { __DRI_TEX_OFFSET, __DRI_TEX_OFFSET_VERSION },
   r300SetTexOffset,
};

static const __DRItexBufferExtension r300TexBufferExtension = {
    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
   r300SetTexBuffer,
   r300SetTexBuffer2,
};
#endif

#if defined(RADEON_R600)
static const __DRItexOffsetExtension r600texOffsetExtension = {
    { __DRI_TEX_OFFSET, __DRI_TEX_OFFSET_VERSION },
   r600SetTexOffset, /* +r6/r7 */
};

static const __DRItexBufferExtension r600TexBufferExtension = {
    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
   r600SetTexBuffer,  /* +r6/r7 */
   r600SetTexBuffer2, /* +r6/r7 */
};
#endif

static int radeon_set_screen_flags(radeonScreenPtr screen, int device_id)
{
   screen->device_id = device_id;
   screen->chip_flags = 0;
   switch ( device_id ) {
   case PCI_CHIP_RN50_515E:
   case PCI_CHIP_RN50_5969:
        return -1;

   case PCI_CHIP_RADEON_LY:
   case PCI_CHIP_RADEON_LZ:
   case PCI_CHIP_RADEON_QY:
   case PCI_CHIP_RADEON_QZ:
      screen->chip_family = CHIP_FAMILY_RV100;
      break;

   case PCI_CHIP_RS100_4136:
   case PCI_CHIP_RS100_4336:
      screen->chip_family = CHIP_FAMILY_RS100;
      break;

   case PCI_CHIP_RS200_4137:
   case PCI_CHIP_RS200_4337:
   case PCI_CHIP_RS250_4237:
   case PCI_CHIP_RS250_4437:
      screen->chip_family = CHIP_FAMILY_RS200;
      break;

   case PCI_CHIP_RADEON_QD:
   case PCI_CHIP_RADEON_QE:
   case PCI_CHIP_RADEON_QF:
   case PCI_CHIP_RADEON_QG:
      /* all original radeons (7200) presumably have a stencil op bug */
      screen->chip_family = CHIP_FAMILY_R100;
      screen->chip_flags = RADEON_CHIPSET_TCL | RADEON_CHIPSET_BROKEN_STENCIL;
      break;

   case PCI_CHIP_RV200_QW:
   case PCI_CHIP_RV200_QX:
   case PCI_CHIP_RADEON_LW:
   case PCI_CHIP_RADEON_LX:
      screen->chip_family = CHIP_FAMILY_RV200;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_R200_BB:
   case PCI_CHIP_R200_BC:
   case PCI_CHIP_R200_QH:
   case PCI_CHIP_R200_QL:
   case PCI_CHIP_R200_QM:
      screen->chip_family = CHIP_FAMILY_R200;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV250_If:
   case PCI_CHIP_RV250_Ig:
   case PCI_CHIP_RV250_Ld:
   case PCI_CHIP_RV250_Lf:
   case PCI_CHIP_RV250_Lg:
      screen->chip_family = CHIP_FAMILY_RV250;
      screen->chip_flags = R200_CHIPSET_YCBCR_BROKEN | RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV280_5960:
   case PCI_CHIP_RV280_5961:
   case PCI_CHIP_RV280_5962:
   case PCI_CHIP_RV280_5964:
   case PCI_CHIP_RV280_5965:
   case PCI_CHIP_RV280_5C61:
   case PCI_CHIP_RV280_5C63:
      screen->chip_family = CHIP_FAMILY_RV280;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RS300_5834:
   case PCI_CHIP_RS300_5835:
   case PCI_CHIP_RS350_7834:
   case PCI_CHIP_RS350_7835:
      screen->chip_family = CHIP_FAMILY_RS300;
      break;

   case PCI_CHIP_R300_AD:
   case PCI_CHIP_R300_AE:
   case PCI_CHIP_R300_AF:
   case PCI_CHIP_R300_AG:
   case PCI_CHIP_R300_ND:
   case PCI_CHIP_R300_NE:
   case PCI_CHIP_R300_NF:
   case PCI_CHIP_R300_NG:
      screen->chip_family = CHIP_FAMILY_R300;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV350_AP:
   case PCI_CHIP_RV350_AQ:
   case PCI_CHIP_RV350_AR:
   case PCI_CHIP_RV350_AS:
   case PCI_CHIP_RV350_AT:
   case PCI_CHIP_RV350_AV:
   case PCI_CHIP_RV350_AU:
   case PCI_CHIP_RV350_NP:
   case PCI_CHIP_RV350_NQ:
   case PCI_CHIP_RV350_NR:
   case PCI_CHIP_RV350_NS:
   case PCI_CHIP_RV350_NT:
   case PCI_CHIP_RV350_NV:
      screen->chip_family = CHIP_FAMILY_RV350;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_R350_AH:
   case PCI_CHIP_R350_AI:
   case PCI_CHIP_R350_AJ:
   case PCI_CHIP_R350_AK:
   case PCI_CHIP_R350_NH:
   case PCI_CHIP_R350_NI:
   case PCI_CHIP_R360_NJ:
   case PCI_CHIP_R350_NK:
      screen->chip_family = CHIP_FAMILY_R350;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV370_5460:
   case PCI_CHIP_RV370_5462:
   case PCI_CHIP_RV370_5464:
   case PCI_CHIP_RV370_5B60:
   case PCI_CHIP_RV370_5B62:
   case PCI_CHIP_RV370_5B63:
   case PCI_CHIP_RV370_5B64:
   case PCI_CHIP_RV370_5B65:
   case PCI_CHIP_RV380_3150:
   case PCI_CHIP_RV380_3152:
   case PCI_CHIP_RV380_3154:
   case PCI_CHIP_RV380_3E50:
   case PCI_CHIP_RV380_3E54:
      screen->chip_family = CHIP_FAMILY_RV380;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_R420_JN:
   case PCI_CHIP_R420_JH:
   case PCI_CHIP_R420_JI:
   case PCI_CHIP_R420_JJ:
   case PCI_CHIP_R420_JK:
   case PCI_CHIP_R420_JL:
   case PCI_CHIP_R420_JM:
   case PCI_CHIP_R420_JO:
   case PCI_CHIP_R420_JP:
   case PCI_CHIP_R420_JT:
   case PCI_CHIP_R481_4B49:
   case PCI_CHIP_R481_4B4A:
   case PCI_CHIP_R481_4B4B:
   case PCI_CHIP_R481_4B4C:
   case PCI_CHIP_R423_UH:
   case PCI_CHIP_R423_UI:
   case PCI_CHIP_R423_UJ:
   case PCI_CHIP_R423_UK:
   case PCI_CHIP_R430_554C:
   case PCI_CHIP_R430_554D:
   case PCI_CHIP_R430_554E:
   case PCI_CHIP_R430_554F:
   case PCI_CHIP_R423_5550:
   case PCI_CHIP_R423_UQ:
   case PCI_CHIP_R423_UR:
   case PCI_CHIP_R423_UT:
   case PCI_CHIP_R430_5D48:
   case PCI_CHIP_R430_5D49:
   case PCI_CHIP_R430_5D4A:
   case PCI_CHIP_R480_5D4C:
   case PCI_CHIP_R480_5D4D:
   case PCI_CHIP_R480_5D4E:
   case PCI_CHIP_R480_5D4F:
   case PCI_CHIP_R480_5D50:
   case PCI_CHIP_R480_5D52:
   case PCI_CHIP_R423_5D57:
      screen->chip_family = CHIP_FAMILY_R420;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV410_5E4C:
   case PCI_CHIP_RV410_5E4F:
   case PCI_CHIP_RV410_564A:
   case PCI_CHIP_RV410_564B:
   case PCI_CHIP_RV410_564F:
   case PCI_CHIP_RV410_5652:
   case PCI_CHIP_RV410_5653:
   case PCI_CHIP_RV410_5657:
   case PCI_CHIP_RV410_5E48:
   case PCI_CHIP_RV410_5E4A:
   case PCI_CHIP_RV410_5E4B:
   case PCI_CHIP_RV410_5E4D:
      screen->chip_family = CHIP_FAMILY_RV410;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RS480_5954:
   case PCI_CHIP_RS480_5955:
   case PCI_CHIP_RS482_5974:
   case PCI_CHIP_RS482_5975:
   case PCI_CHIP_RS400_5A41:
   case PCI_CHIP_RS400_5A42:
   case PCI_CHIP_RC410_5A61:
   case PCI_CHIP_RC410_5A62:
      screen->chip_family = CHIP_FAMILY_RS400;
      break;

   case PCI_CHIP_RS600_793F:
   case PCI_CHIP_RS600_7941:
   case PCI_CHIP_RS600_7942:
      screen->chip_family = CHIP_FAMILY_RS600;
      break;

   case PCI_CHIP_RS690_791E:
   case PCI_CHIP_RS690_791F:
      screen->chip_family = CHIP_FAMILY_RS690;
      break;
   case PCI_CHIP_RS740_796C:
   case PCI_CHIP_RS740_796D:
   case PCI_CHIP_RS740_796E:
   case PCI_CHIP_RS740_796F:
      screen->chip_family = CHIP_FAMILY_RS740;
      break;

   case PCI_CHIP_R520_7100:
   case PCI_CHIP_R520_7101:
   case PCI_CHIP_R520_7102:
   case PCI_CHIP_R520_7103:
   case PCI_CHIP_R520_7104:
   case PCI_CHIP_R520_7105:
   case PCI_CHIP_R520_7106:
   case PCI_CHIP_R520_7108:
   case PCI_CHIP_R520_7109:
   case PCI_CHIP_R520_710A:
   case PCI_CHIP_R520_710B:
   case PCI_CHIP_R520_710C:
   case PCI_CHIP_R520_710E:
   case PCI_CHIP_R520_710F:
      screen->chip_family = CHIP_FAMILY_R520;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV515_7140:
   case PCI_CHIP_RV515_7141:
   case PCI_CHIP_RV515_7142:
   case PCI_CHIP_RV515_7143:
   case PCI_CHIP_RV515_7144:
   case PCI_CHIP_RV515_7145:
   case PCI_CHIP_RV515_7146:
   case PCI_CHIP_RV515_7147:
   case PCI_CHIP_RV515_7149:
   case PCI_CHIP_RV515_714A:
   case PCI_CHIP_RV515_714B:
   case PCI_CHIP_RV515_714C:
   case PCI_CHIP_RV515_714D:
   case PCI_CHIP_RV515_714E:
   case PCI_CHIP_RV515_714F:
   case PCI_CHIP_RV515_7151:
   case PCI_CHIP_RV515_7152:
   case PCI_CHIP_RV515_7153:
   case PCI_CHIP_RV515_715E:
   case PCI_CHIP_RV515_715F:
   case PCI_CHIP_RV515_7180:
   case PCI_CHIP_RV515_7181:
   case PCI_CHIP_RV515_7183:
   case PCI_CHIP_RV515_7186:
   case PCI_CHIP_RV515_7187:
   case PCI_CHIP_RV515_7188:
   case PCI_CHIP_RV515_718A:
   case PCI_CHIP_RV515_718B:
   case PCI_CHIP_RV515_718C:
   case PCI_CHIP_RV515_718D:
   case PCI_CHIP_RV515_718F:
   case PCI_CHIP_RV515_7193:
   case PCI_CHIP_RV515_7196:
   case PCI_CHIP_RV515_719B:
   case PCI_CHIP_RV515_719F:
   case PCI_CHIP_RV515_7200:
   case PCI_CHIP_RV515_7210:
   case PCI_CHIP_RV515_7211:
      screen->chip_family = CHIP_FAMILY_RV515;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV530_71C0:
   case PCI_CHIP_RV530_71C1:
   case PCI_CHIP_RV530_71C2:
   case PCI_CHIP_RV530_71C3:
   case PCI_CHIP_RV530_71C4:
   case PCI_CHIP_RV530_71C5:
   case PCI_CHIP_RV530_71C6:
   case PCI_CHIP_RV530_71C7:
   case PCI_CHIP_RV530_71CD:
   case PCI_CHIP_RV530_71CE:
   case PCI_CHIP_RV530_71D2:
   case PCI_CHIP_RV530_71D4:
   case PCI_CHIP_RV530_71D5:
   case PCI_CHIP_RV530_71D6:
   case PCI_CHIP_RV530_71DA:
   case PCI_CHIP_RV530_71DE:
      screen->chip_family = CHIP_FAMILY_RV530;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_R580_7240:
   case PCI_CHIP_R580_7243:
   case PCI_CHIP_R580_7244:
   case PCI_CHIP_R580_7245:
   case PCI_CHIP_R580_7246:
   case PCI_CHIP_R580_7247:
   case PCI_CHIP_R580_7248:
   case PCI_CHIP_R580_7249:
   case PCI_CHIP_R580_724A:
   case PCI_CHIP_R580_724B:
   case PCI_CHIP_R580_724C:
   case PCI_CHIP_R580_724D:
   case PCI_CHIP_R580_724E:
   case PCI_CHIP_R580_724F:
   case PCI_CHIP_R580_7284:
      screen->chip_family = CHIP_FAMILY_R580;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV570_7280:
   case PCI_CHIP_RV560_7281:
   case PCI_CHIP_RV560_7283:
   case PCI_CHIP_RV560_7287:
   case PCI_CHIP_RV570_7288:
   case PCI_CHIP_RV570_7289:
   case PCI_CHIP_RV570_728B:
   case PCI_CHIP_RV570_728C:
   case PCI_CHIP_RV560_7290:
   case PCI_CHIP_RV560_7291:
   case PCI_CHIP_RV560_7293:
   case PCI_CHIP_RV560_7297:
      screen->chip_family = CHIP_FAMILY_RV560;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_R600_9400:
   case PCI_CHIP_R600_9401:
   case PCI_CHIP_R600_9402:
   case PCI_CHIP_R600_9403:
   case PCI_CHIP_R600_9405:
   case PCI_CHIP_R600_940A:
   case PCI_CHIP_R600_940B:
   case PCI_CHIP_R600_940F:
      screen->chip_family = CHIP_FAMILY_R600;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV610_94C0:
   case PCI_CHIP_RV610_94C1:
   case PCI_CHIP_RV610_94C3:
   case PCI_CHIP_RV610_94C4:
   case PCI_CHIP_RV610_94C5:
   case PCI_CHIP_RV610_94C6:
   case PCI_CHIP_RV610_94C7:
   case PCI_CHIP_RV610_94C8:
   case PCI_CHIP_RV610_94C9:
   case PCI_CHIP_RV610_94CB:
   case PCI_CHIP_RV610_94CC:
   case PCI_CHIP_RV610_94CD:
      screen->chip_family = CHIP_FAMILY_RV610;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV630_9580:
   case PCI_CHIP_RV630_9581:
   case PCI_CHIP_RV630_9583:
   case PCI_CHIP_RV630_9586:
   case PCI_CHIP_RV630_9587:
   case PCI_CHIP_RV630_9588:
   case PCI_CHIP_RV630_9589:
   case PCI_CHIP_RV630_958A:
   case PCI_CHIP_RV630_958B:
   case PCI_CHIP_RV630_958C:
   case PCI_CHIP_RV630_958D:
   case PCI_CHIP_RV630_958E:
   case PCI_CHIP_RV630_958F:
      screen->chip_family = CHIP_FAMILY_RV630;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV670_9500:
   case PCI_CHIP_RV670_9501:
   case PCI_CHIP_RV670_9504:
   case PCI_CHIP_RV670_9505:
   case PCI_CHIP_RV670_9506:
   case PCI_CHIP_RV670_9507:
   case PCI_CHIP_RV670_9508:
   case PCI_CHIP_RV670_9509:
   case PCI_CHIP_RV670_950F:
   case PCI_CHIP_RV670_9511:
   case PCI_CHIP_RV670_9515:
   case PCI_CHIP_RV670_9517:
   case PCI_CHIP_RV670_9519:
      screen->chip_family = CHIP_FAMILY_RV670;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV620_95C0:
   case PCI_CHIP_RV620_95C2:
   case PCI_CHIP_RV620_95C4:
   case PCI_CHIP_RV620_95C5:
   case PCI_CHIP_RV620_95C6:
   case PCI_CHIP_RV620_95C7:
   case PCI_CHIP_RV620_95C9:
   case PCI_CHIP_RV620_95CC:
   case PCI_CHIP_RV620_95CD:
   case PCI_CHIP_RV620_95CE:
   case PCI_CHIP_RV620_95CF:
      screen->chip_family = CHIP_FAMILY_RV620;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV635_9590:
   case PCI_CHIP_RV635_9591:
   case PCI_CHIP_RV635_9593:
   case PCI_CHIP_RV635_9595:
   case PCI_CHIP_RV635_9596:
   case PCI_CHIP_RV635_9597:
   case PCI_CHIP_RV635_9598:
   case PCI_CHIP_RV635_9599:
   case PCI_CHIP_RV635_959B:
      screen->chip_family = CHIP_FAMILY_RV635;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RS780_9610:
   case PCI_CHIP_RS780_9611:
   case PCI_CHIP_RS780_9612:
   case PCI_CHIP_RS780_9613:
   case PCI_CHIP_RS780_9614:
   case PCI_CHIP_RS780_9615:
   case PCI_CHIP_RS780_9616:
      screen->chip_family = CHIP_FAMILY_RS780;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;
   case PCI_CHIP_RS880_9710:
   case PCI_CHIP_RS880_9711:
   case PCI_CHIP_RS880_9712:
   case PCI_CHIP_RS880_9713:
   case PCI_CHIP_RS880_9714:
      screen->chip_family = CHIP_FAMILY_RS880;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV770_9440:
   case PCI_CHIP_RV770_9441:
   case PCI_CHIP_RV770_9442:
   case PCI_CHIP_RV770_9443:
   case PCI_CHIP_RV770_9444:
   case PCI_CHIP_RV770_9446:
   case PCI_CHIP_RV770_944A:
   case PCI_CHIP_RV770_944B:
   case PCI_CHIP_RV770_944C:
   case PCI_CHIP_RV770_944E:
   case PCI_CHIP_RV770_9450:
   case PCI_CHIP_RV770_9452:
   case PCI_CHIP_RV770_9456:
   case PCI_CHIP_RV770_945A:
   case PCI_CHIP_RV770_945B:
   case PCI_CHIP_RV790_9460:
   case PCI_CHIP_RV790_9462:
   case PCI_CHIP_RV770_946A:
   case PCI_CHIP_RV770_946B:
   case PCI_CHIP_RV770_947A:
   case PCI_CHIP_RV770_947B:
      screen->chip_family = CHIP_FAMILY_RV770;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV730_9480:
   case PCI_CHIP_RV730_9487:
   case PCI_CHIP_RV730_9488:
   case PCI_CHIP_RV730_9489:
   case PCI_CHIP_RV730_948F:
   case PCI_CHIP_RV730_9490:
   case PCI_CHIP_RV730_9491:
   case PCI_CHIP_RV730_9495:
   case PCI_CHIP_RV730_9498:
   case PCI_CHIP_RV730_949C:
   case PCI_CHIP_RV730_949E:
   case PCI_CHIP_RV730_949F:
      screen->chip_family = CHIP_FAMILY_RV730;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV710_9540:
   case PCI_CHIP_RV710_9541:
   case PCI_CHIP_RV710_9542:
   case PCI_CHIP_RV710_954E:
   case PCI_CHIP_RV710_954F:
   case PCI_CHIP_RV710_9552:
   case PCI_CHIP_RV710_9553:
   case PCI_CHIP_RV710_9555:
   case PCI_CHIP_RV710_9557:
      screen->chip_family = CHIP_FAMILY_RV710;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   case PCI_CHIP_RV740_94A0:
   case PCI_CHIP_RV740_94A1:
   case PCI_CHIP_RV740_94A3:
   case PCI_CHIP_RV740_94B1:
   case PCI_CHIP_RV740_94B3:
   case PCI_CHIP_RV740_94B4:
   case PCI_CHIP_RV740_94B5:
   case PCI_CHIP_RV740_94B9:
      screen->chip_family = CHIP_FAMILY_RV740;
      screen->chip_flags = RADEON_CHIPSET_TCL;
      break;

   default:
      fprintf(stderr, "unknown chip id 0x%x, can't guess.\n",
              device_id);
      return -1;
   }

   return 0;
}


/* Create the device specific screen private data struct.
 */
static radeonScreenPtr
radeonCreateScreen( __DRIscreen *sPriv )
{
   radeonScreenPtr screen;
   RADEONDRIPtr dri_priv = (RADEONDRIPtr)sPriv->pDevPriv;
   unsigned char *RADEONMMIO = NULL;
   int i;
   int ret;
   uint32_t temp = 0;

   if (sPriv->devPrivSize != sizeof(RADEONDRIRec)) {
      fprintf(stderr,"\nERROR!  sizeof(RADEONDRIRec) does not match passed size from device driver\n");
      return GL_FALSE;
   }

   /* Allocate the private area */
   screen = (radeonScreenPtr) CALLOC( sizeof(*screen) );
   if ( !screen ) {
      __driUtilMessage("%s: Could not allocate memory for screen structure",
                       __FUNCTION__);
      return NULL;
   }

   radeon_init_debug();

   /* parse information in __driConfigOptions */
   driParseOptionInfo (&screen->optionCache,
                       __driConfigOptions, __driNConfigOptions);

   /* This is first since which regions we map depends on whether or
    * not we are using a PCI card.
    */
   screen->card_type = (dri_priv->IsPCI ? RADEON_CARD_PCI : RADEON_CARD_AGP);
   {
      int ret;

      ret = radeonGetParam(sPriv, RADEON_PARAM_GART_BUFFER_OFFSET,
                            &screen->gart_buffer_offset);

      if (ret) {
         FREE( screen );
         fprintf(stderr, "drm_radeon_getparam_t (RADEON_PARAM_GART_BUFFER_OFFSET): %d\n", ret);
         return NULL;
      }

      ret = radeonGetParam(sPriv, RADEON_PARAM_GART_BASE,
                            &screen->gart_base);
      if (ret) {
         FREE( screen );
         fprintf(stderr, "drm_radeon_getparam_t (RADEON_PARAM_GART_BASE): %d\n", ret);
         return NULL;
      }

      ret = radeonGetParam(sPriv, RADEON_PARAM_IRQ_NR,
                            &screen->irq);
      if (ret) {
         FREE( screen );
         fprintf(stderr, "drm_radeon_getparam_t (RADEON_PARAM_IRQ_NR): %d\n", ret);
         return NULL;
      }
      screen->drmSupportsCubeMapsR200 = (sPriv->drm_version.minor >= 7);
      screen->drmSupportsBlendColor = (sPriv->drm_version.minor >= 11);
      screen->drmSupportsTriPerf = (sPriv->drm_version.minor >= 16);
      screen->drmSupportsFragShader = (sPriv->drm_version.minor >= 18);
      screen->drmSupportsPointSprites = (sPriv->drm_version.minor >= 13);
      screen->drmSupportsCubeMapsR100 = (sPriv->drm_version.minor >= 15);
      screen->drmSupportsVertexProgram = (sPriv->drm_version.minor >= 25);
      screen->drmSupportsOcclusionQueries = (sPriv->drm_version.minor >= 30);
   }

   ret = radeon_set_screen_flags(screen, dri_priv->deviceID);
   if (ret == -1)
     return NULL;

   screen->mmio.handle = dri_priv->registerHandle;
   screen->mmio.size   = dri_priv->registerSize;
   if ( drmMap( sPriv->fd,
                screen->mmio.handle,
                screen->mmio.size,
                &screen->mmio.map ) ) {
     FREE( screen );
     __driUtilMessage("%s: drmMap failed\n", __FUNCTION__ );
     return NULL;
   }

   RADEONMMIO = screen->mmio.map;

   screen->status.handle = dri_priv->statusHandle;
   screen->status.size   = dri_priv->statusSize;
   if ( drmMap( sPriv->fd,
                screen->status.handle,
                screen->status.size,
                &screen->status.map ) ) {
     drmUnmap( screen->mmio.map, screen->mmio.size );
     FREE( screen );
     __driUtilMessage("%s: drmMap (2) failed\n", __FUNCTION__ );
     return NULL;
   }
   if (screen->chip_family < CHIP_FAMILY_R600)
           screen->scratch = (__volatile__ uint32_t *)
                   ((GLubyte *)screen->status.map + RADEON_SCRATCH_REG_OFFSET);
   else
           screen->scratch = (__volatile__ uint32_t *)
                   ((GLubyte *)screen->status.map + R600_SCRATCH_REG_OFFSET);

   screen->buffers = drmMapBufs( sPriv->fd );
   if ( !screen->buffers ) {
     drmUnmap( screen->status.map, screen->status.size );
     drmUnmap( screen->mmio.map, screen->mmio.size );
     FREE( screen );
     __driUtilMessage("%s: drmMapBufs failed\n", __FUNCTION__ );
     return NULL;
   }

   if ( dri_priv->gartTexHandle && dri_priv->gartTexMapSize ) {
     screen->gartTextures.handle = dri_priv->gartTexHandle;
     screen->gartTextures.size   = dri_priv->gartTexMapSize;
     if ( drmMap( sPriv->fd,
                  screen->gartTextures.handle,
                  screen->gartTextures.size,
                  (drmAddressPtr)&screen->gartTextures.map ) ) {
       drmUnmapBufs( screen->buffers );
       drmUnmap( screen->status.map, screen->status.size );
       drmUnmap( screen->mmio.map, screen->mmio.size );
       FREE( screen );
       __driUtilMessage("%s: drmMap failed for GART texture area\n", __FUNCTION__);
       return NULL;
    }

     screen->gart_texture_offset = dri_priv->gartTexOffset + screen->gart_base;
   }

   if ((screen->chip_family == CHIP_FAMILY_R350 || screen->chip_family == CHIP_FAMILY_R300) &&
       sPriv->ddx_version.minor < 2) {
      fprintf(stderr, "xf86-video-ati-6.6.2 or newer needed for Radeon 9500/9700/9800 cards.\n");
      return NULL;
   }

   if ((sPriv->drm_version.minor < 29) && (screen->chip_family >= CHIP_FAMILY_RV515)) {
      fprintf(stderr, "R500 support requires a newer drm.\n");
      return NULL;
   }

   if (getenv("R300_NO_TCL"))
           screen->chip_flags &= ~RADEON_CHIPSET_TCL;

   if (screen->chip_family <= CHIP_FAMILY_RS200)
           screen->chip_flags |= RADEON_CLASS_R100;
   else if (screen->chip_family <= CHIP_FAMILY_RV280)
           screen->chip_flags |= RADEON_CLASS_R200;
   else if (screen->chip_family <= CHIP_FAMILY_RV570)
           screen->chip_flags |= RADEON_CLASS_R300;
   else
           screen->chip_flags |= RADEON_CLASS_R600;

   screen->cpp = dri_priv->bpp / 8;
   screen->AGPMode = dri_priv->AGPMode;

   ret = radeonGetParam(sPriv, RADEON_PARAM_FB_LOCATION, &temp);

   /* +r6/r7 */
   if(screen->chip_family >= CHIP_FAMILY_R600)
   {
       if (ret)
       {
            FREE( screen );
            fprintf(stderr, "Unable to get fb location need newer drm\n");
            return NULL;
       }
       else
       {
            screen->fbLocation = (temp & 0xffff) << 24;
       }
   }
   else
   {
        if (ret)
        {
            if (screen->chip_family < CHIP_FAMILY_RS600 && !screen->kernel_mm)
                    screen->fbLocation      = ( INREG( RADEON_MC_FB_LOCATION ) & 0xffff) << 16;
            else
            {
                FREE( screen );
                fprintf(stderr, "Unable to get fb location need newer drm\n");
                return NULL;
            }
        }
        else
        {
            screen->fbLocation = (temp & 0xffff) << 16;
        }
   }

   if (IS_R300_CLASS(screen)) {
       ret = radeonGetParam(sPriv, RADEON_PARAM_NUM_GB_PIPES, &temp);
       if (ret) {
           fprintf(stderr, "Unable to get num_pipes, need newer drm\n");
           switch (screen->chip_family) {
           case CHIP_FAMILY_R300:
           case CHIP_FAMILY_R350:
               screen->num_gb_pipes = 2;
               break;
           case CHIP_FAMILY_R420:
           case CHIP_FAMILY_R520:
           case CHIP_FAMILY_R580:
           case CHIP_FAMILY_RV560:
           case CHIP_FAMILY_RV570:
               screen->num_gb_pipes = 4;
               break;
           case CHIP_FAMILY_RV350:
           case CHIP_FAMILY_RV515:
           case CHIP_FAMILY_RV530:
           case CHIP_FAMILY_RV410:
           default:
               screen->num_gb_pipes = 1;
               break;
           }
       } else {
           screen->num_gb_pipes = temp;
       }

       /* pipe overrides */
       switch (dri_priv->deviceID) {
       case PCI_CHIP_R300_AD: /* 9500 with 1 quadpipe verified by: Reid Linnemann <lreid@cs.okstate.edu> */
       case PCI_CHIP_RV410_5E4C: /* RV410 SE only have 1 quadpipe */
       case PCI_CHIP_RV410_5E4F: /* RV410 SE only have 1 quadpipe */
           screen->num_gb_pipes = 1;
           break;
       default:
           break;
       }

       if ( sPriv->drm_version.minor >= 31 ) {
               ret = radeonGetParam(sPriv, RADEON_PARAM_NUM_Z_PIPES, &temp);
               if (ret)
                       screen->num_z_pipes = 2;
               else
                       screen->num_z_pipes = temp;
       } else
               screen->num_z_pipes = 2;
   }

   if ( sPriv->drm_version.minor >= 10 ) {
      drm_radeon_setparam_t sp;

      sp.param = RADEON_SETPARAM_FB_LOCATION;
      sp.value = screen->fbLocation;

      drmCommandWrite( sPriv->fd, DRM_RADEON_SETPARAM,
                       &sp, sizeof( sp ) );
   }

   screen->frontOffset  = dri_priv->frontOffset;
   screen->frontPitch   = dri_priv->frontPitch;
   screen->backOffset   = dri_priv->backOffset;
   screen->backPitch    = dri_priv->backPitch;
   screen->depthOffset  = dri_priv->depthOffset;
   screen->depthPitch   = dri_priv->depthPitch;

   /* Check if ddx has set up a surface reg to cover depth buffer */
   screen->depthHasSurface = (sPriv->ddx_version.major > 4) ||
      /* these chips don't use tiled z without hyperz. So always pretend
         we have set up a surface which will cause linear reads/writes */
      (IS_R100_CLASS(screen) &&
      !(screen->chip_flags & RADEON_CHIPSET_TCL));

   if ( dri_priv->textureSize == 0 ) {
      screen->texOffset[RADEON_LOCAL_TEX_HEAP] = screen->gart_texture_offset;
      screen->texSize[RADEON_LOCAL_TEX_HEAP] = dri_priv->gartTexMapSize;
      screen->logTexGranularity[RADEON_LOCAL_TEX_HEAP] =
         dri_priv->log2GARTTexGran;
   } else {
      screen->texOffset[RADEON_LOCAL_TEX_HEAP] = dri_priv->textureOffset
                                               + screen->fbLocation;
      screen->texSize[RADEON_LOCAL_TEX_HEAP] = dri_priv->textureSize;
      screen->logTexGranularity[RADEON_LOCAL_TEX_HEAP] =
         dri_priv->log2TexGran;
   }

   if ( !screen->gartTextures.map || dri_priv->textureSize == 0
        || getenv( "RADEON_GARTTEXTURING_FORCE_DISABLE" ) ) {
      screen->numTexHeaps = RADEON_NR_TEX_HEAPS - 1;
      screen->texOffset[RADEON_GART_TEX_HEAP] = 0;
      screen->texSize[RADEON_GART_TEX_HEAP] = 0;
      screen->logTexGranularity[RADEON_GART_TEX_HEAP] = 0;
   } else {
      screen->numTexHeaps = RADEON_NR_TEX_HEAPS;
      screen->texOffset[RADEON_GART_TEX_HEAP] = screen->gart_texture_offset;
      screen->texSize[RADEON_GART_TEX_HEAP] = dri_priv->gartTexMapSize;
      screen->logTexGranularity[RADEON_GART_TEX_HEAP] =
         dri_priv->log2GARTTexGran;
   }

   i = 0;
   screen->extensions[i++] = &driCopySubBufferExtension.base;
   screen->extensions[i++] = &driFrameTrackingExtension.base;
   screen->extensions[i++] = &driReadDrawableExtension;

   if ( screen->irq != 0 ) {
       screen->extensions[i++] = &driSwapControlExtension.base;
       screen->extensions[i++] = &driMediaStreamCounterExtension.base;
   }

#if defined(RADEON_R100)
   screen->extensions[i++] = &radeonTexOffsetExtension.base;
#endif

#if defined(RADEON_R200)
   if (IS_R200_CLASS(screen))
      screen->extensions[i++] = &r200AllocateExtension.base;

   screen->extensions[i++] = &r200texOffsetExtension.base;
#endif

#if defined(RADEON_R300)
   screen->extensions[i++] = &r300texOffsetExtension.base;
#endif

#if defined(RADEON_R600)
   screen->extensions[i++] = &r600texOffsetExtension.base;
#endif

   screen->extensions[i++] = NULL;
   sPriv->extensions = screen->extensions;

   screen->driScreen = sPriv;
   screen->sarea_priv_offset = dri_priv->sarea_priv_offset;
   screen->sarea = (drm_radeon_sarea_t *) ((GLubyte *) sPriv->pSAREA +
                                               screen->sarea_priv_offset);

   screen->bom = radeon_bo_manager_legacy_ctor(screen);
   if (screen->bom == NULL) {
     free(screen);
     return NULL;
   }

   return screen;
}

static radeonScreenPtr
radeonCreateScreen2(__DRIscreen *sPriv)
{
   radeonScreenPtr screen;
   int i;
   int ret;
   uint32_t device_id = 0;
   uint32_t temp = 0;

   /* Allocate the private area */
   screen = (radeonScreenPtr) CALLOC( sizeof(*screen) );
   if ( !screen ) {
      __driUtilMessage("%s: Could not allocate memory for screen structure",
                       __FUNCTION__);
      fprintf(stderr, "leaving here\n");
      return NULL;
   }

   radeon_init_debug();

   /* parse information in __driConfigOptions */
   driParseOptionInfo (&screen->optionCache,
                       __driConfigOptions, __driNConfigOptions);

   screen->kernel_mm = 1;
   screen->chip_flags = 0;

   /* if we have kms we can support all of these */
   screen->drmSupportsCubeMapsR200 = 1;
   screen->drmSupportsBlendColor = 1;
   screen->drmSupportsTriPerf = 1;
   screen->drmSupportsFragShader = 1;
   screen->drmSupportsPointSprites = 1;
   screen->drmSupportsCubeMapsR100 = 1;
   screen->drmSupportsVertexProgram = 1;
   screen->drmSupportsOcclusionQueries = 1;
   screen->irq = 1;

   ret = radeonGetParam(sPriv, RADEON_PARAM_DEVICE_ID, &device_id);
   if (ret) {
     FREE( screen );
     fprintf(stderr, "drm_radeon_getparam_t (RADEON_PARAM_DEVICE_ID): %d\n", ret);
     return NULL;
   }

   ret = radeon_set_screen_flags(screen, device_id);
   if (ret == -1)
     return NULL;

   if (getenv("R300_NO_TCL"))
           screen->chip_flags &= ~RADEON_CHIPSET_TCL;

   if (screen->chip_family <= CHIP_FAMILY_RS200)
           screen->chip_flags |= RADEON_CLASS_R100;
   else if (screen->chip_family <= CHIP_FAMILY_RV280)
           screen->chip_flags |= RADEON_CLASS_R200;
   else if (screen->chip_family <= CHIP_FAMILY_RV570)
           screen->chip_flags |= RADEON_CLASS_R300;
   else
           screen->chip_flags |= RADEON_CLASS_R600;

   if (IS_R300_CLASS(screen)) {
       ret = radeonGetParam(sPriv, RADEON_PARAM_NUM_GB_PIPES, &temp);
       if (ret) {
           fprintf(stderr, "Unable to get num_pipes, need newer drm\n");
           switch (screen->chip_family) {
           case CHIP_FAMILY_R300:
           case CHIP_FAMILY_R350:
               screen->num_gb_pipes = 2;
               break;
           case CHIP_FAMILY_R420:
           case CHIP_FAMILY_R520:
           case CHIP_FAMILY_R580:
           case CHIP_FAMILY_RV560:
           case CHIP_FAMILY_RV570:
               screen->num_gb_pipes = 4;
               break;
           case CHIP_FAMILY_RV350:
           case CHIP_FAMILY_RV515:
           case CHIP_FAMILY_RV530:
           case CHIP_FAMILY_RV410:
           default:
               screen->num_gb_pipes = 1;
               break;
           }
       } else {
           screen->num_gb_pipes = temp;
       }

       /* pipe overrides */
       switch (device_id) {
       case PCI_CHIP_R300_AD: /* 9500 with 1 quadpipe verified by: Reid Linnemann <lreid@cs.okstate.edu> */
       case PCI_CHIP_RV410_5E4C: /* RV410 SE only have 1 quadpipe */
       case PCI_CHIP_RV410_5E4F: /* RV410 SE only have 1 quadpipe */
           screen->num_gb_pipes = 1;
           break;
       default:
           break;
       }

       ret = radeonGetParam(sPriv, RADEON_PARAM_NUM_Z_PIPES, &temp);
       if (ret)
               screen->num_z_pipes = 2;
       else
               screen->num_z_pipes = temp;

   }

   i = 0;
   screen->extensions[i++] = &driCopySubBufferExtension.base;
   screen->extensions[i++] = &driFrameTrackingExtension.base;
   screen->extensions[i++] = &driReadDrawableExtension;

   if ( screen->irq != 0 ) {
       screen->extensions[i++] = &driSwapControlExtension.base;
       screen->extensions[i++] = &driMediaStreamCounterExtension.base;
   }

#if defined(RADEON_R100)
   screen->extensions[i++] = &radeonTexBufferExtension.base;
#endif

#if defined(RADEON_R200)
   if (IS_R200_CLASS(screen))
       screen->extensions[i++] = &r200AllocateExtension.base;

   screen->extensions[i++] = &r200TexBufferExtension.base;
#endif

#if defined(RADEON_R300)
   screen->extensions[i++] = &r300TexBufferExtension.base;
#endif

#if defined(RADEON_R600)
   screen->extensions[i++] = &r600TexBufferExtension.base;
#endif

   screen->extensions[i++] = NULL;
   sPriv->extensions = screen->extensions;

   screen->driScreen = sPriv;
   screen->bom = radeon_bo_manager_gem_ctor(sPriv->fd);
   if (screen->bom == NULL) {
       free(screen);
       return NULL;
   }
   return screen;
}

/* Destroy the device specific screen private data struct.
 */
static void
radeonDestroyScreen( __DRIscreen *sPriv )
{
    radeonScreenPtr screen = (radeonScreenPtr)sPriv->private;

    if (!screen)
        return;

    if (screen->kernel_mm) {
#ifdef RADEON_BO_TRACK
        radeon_tracker_print(&screen->bom->tracker, stderr);
#endif
        radeon_bo_manager_gem_dtor(screen->bom);
    } else {
        radeon_bo_manager_legacy_dtor(screen->bom);

        if ( screen->gartTextures.map ) {
            drmUnmap( screen->gartTextures.map, screen->gartTextures.size );
        }
        drmUnmapBufs( screen->buffers );
        drmUnmap( screen->status.map, screen->status.size );
        drmUnmap( screen->mmio.map, screen->mmio.size );
    }

    /* free all option information */
    driDestroyOptionInfo (&screen->optionCache);

    FREE( screen );
    sPriv->private = NULL;
}


/* Initialize the driver specific screen private data.
 */
static GLboolean
radeonInitDriver( __DRIscreen *sPriv )
{
    if (sPriv->dri2.enabled) {
        sPriv->private = (void *) radeonCreateScreen2( sPriv );
    } else {
        sPriv->private = (void *) radeonCreateScreen( sPriv );
    }
    if ( !sPriv->private ) {
        radeonDestroyScreen( sPriv );
        return GL_FALSE;
    }

    return GL_TRUE;
}



/**
 * Create the Mesa framebuffer and renderbuffers for a given window/drawable.
 *
 * \todo This function (and its interface) will need to be updated to support
 * pbuffers.
 */
static GLboolean
radeonCreateBuffer( __DRIscreen *driScrnPriv,
                    __DRIdrawable *driDrawPriv,
                    const __GLcontextModes *mesaVis,
                    GLboolean isPixmap )
{
    radeonScreenPtr screen = (radeonScreenPtr) driScrnPriv->private;

    const GLboolean swDepth = GL_FALSE;
    const GLboolean swAlpha = GL_FALSE;
    const GLboolean swAccum = mesaVis->accumRedBits > 0;
    const GLboolean swStencil = mesaVis->stencilBits > 0 &&
        mesaVis->depthBits != 24;
    gl_format rgbFormat;
    struct radeon_framebuffer *rfb;

    if (isPixmap)
      return GL_FALSE; /* not implemented */

    rfb = CALLOC_STRUCT(radeon_framebuffer);
    if (!rfb)
      return GL_FALSE;

    _mesa_initialize_window_framebuffer(&rfb->base, mesaVis);

    if (mesaVis->redBits == 5)
        rgbFormat = _mesa_little_endian() ? MESA_FORMAT_RGB565 : MESA_FORMAT_RGB565_REV;
    else if (mesaVis->alphaBits == 0)
        rgbFormat = _mesa_little_endian() ? MESA_FORMAT_XRGB8888 : MESA_FORMAT_XRGB8888_REV;
    else
        rgbFormat = _mesa_little_endian() ? MESA_FORMAT_ARGB8888 : MESA_FORMAT_ARGB8888_REV;

    /* front color renderbuffer */
    rfb->color_rb[0] = radeon_create_renderbuffer(rgbFormat, driDrawPriv);
    _mesa_add_renderbuffer(&rfb->base, BUFFER_FRONT_LEFT, &rfb->color_rb[0]->base);
    rfb->color_rb[0]->has_surface = 1;

    /* back color renderbuffer */
    if (mesaVis->doubleBufferMode) {
      rfb->color_rb[1] = radeon_create_renderbuffer(rgbFormat, driDrawPriv);
        _mesa_add_renderbuffer(&rfb->base, BUFFER_BACK_LEFT, &rfb->color_rb[1]->base);
        rfb->color_rb[1]->has_surface = 1;
    }

    if (mesaVis->depthBits == 24) {
      if (mesaVis->stencilBits == 8) {
        struct radeon_renderbuffer *depthStencilRb =
           radeon_create_renderbuffer(MESA_FORMAT_S8_Z24, driDrawPriv);
        _mesa_add_renderbuffer(&rfb->base, BUFFER_DEPTH, &depthStencilRb->base);
        _mesa_add_renderbuffer(&rfb->base, BUFFER_STENCIL, &depthStencilRb->base);
        depthStencilRb->has_surface = screen->depthHasSurface;
      } else {
        /* depth renderbuffer */
        struct radeon_renderbuffer *depth =
           radeon_create_renderbuffer(MESA_FORMAT_X8_Z24, driDrawPriv);
        _mesa_add_renderbuffer(&rfb->base, BUFFER_DEPTH, &depth->base);
        depth->has_surface = screen->depthHasSurface;
      }
    } else if (mesaVis->depthBits == 16) {
        /* just 16-bit depth buffer, no hw stencil */
        struct radeon_renderbuffer *depth =
           radeon_create_renderbuffer(MESA_FORMAT_Z16, driDrawPriv);
        _mesa_add_renderbuffer(&rfb->base, BUFFER_DEPTH, &depth->base);
        depth->has_surface = screen->depthHasSurface;
    }

    _mesa_add_soft_renderbuffers(&rfb->base,
            GL_FALSE, /* color */
            swDepth,
            swStencil,
            swAccum,
            swAlpha,
            GL_FALSE /* aux */);
    driDrawPriv->driverPrivate = (void *) rfb;

    return (driDrawPriv->driverPrivate != NULL);
}


static void radeon_cleanup_renderbuffers(struct radeon_framebuffer *rfb)
{
        struct radeon_renderbuffer *rb;

        rb = rfb->color_rb[0];
        if (rb && rb->bo) {
                radeon_bo_unref(rb->bo);
                rb->bo = NULL;
        }
        rb = rfb->color_rb[1];
        if (rb && rb->bo) {
                radeon_bo_unref(rb->bo);
                rb->bo = NULL;
        }
        rb = radeon_get_renderbuffer(&rfb->base, BUFFER_DEPTH);
        if (rb && rb->bo) {
                radeon_bo_unref(rb->bo);
                rb->bo = NULL;
        }
}

void
radeonDestroyBuffer(__DRIdrawable *driDrawPriv)
{
    struct radeon_framebuffer *rfb;
    if (!driDrawPriv)
        return;

    rfb = (void*)driDrawPriv->driverPrivate;
    if (!rfb)
        return;
    radeon_cleanup_renderbuffers(rfb);
    _mesa_reference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)), NULL);
}


/**
 * This is the driver specific part of the createNewScreen entry point.
 *
 * \todo maybe fold this into intelInitDriver
 *
 * \return the __GLcontextModes supported by this driver
 */
static const __DRIconfig **
radeonInitScreen(__DRIscreen *psp)
{
#if defined(RADEON_R100)
   static const char *driver_name = "Radeon";
   static const __DRIutilversion2 ddx_expected = { 4, 5, 0, 0 };
   static const __DRIversion dri_expected = { 4, 0, 0 };
   static const __DRIversion drm_expected = { 1, 6, 0 };
#elif defined(RADEON_R200)
   static const char *driver_name = "R200";
   static const __DRIutilversion2 ddx_expected = { 4, 5, 0, 0 };
   static const __DRIversion dri_expected = { 4, 0, 0 };
   static const __DRIversion drm_expected = { 1, 6, 0 };
#elif defined(RADEON_R300)
   static const char *driver_name = "R300";
   static const __DRIutilversion2 ddx_expected = { 4, 5, 0, 0 };
   static const __DRIversion dri_expected = { 4, 0, 0 };
   static const __DRIversion drm_expected = { 1, 24, 0 };
#elif defined(RADEON_R600)
   static const char *driver_name = "R600";
   static const __DRIutilversion2 ddx_expected = { 4, 5, 0, 0 };
   static const __DRIversion dri_expected = { 4, 0, 0 };
   static const __DRIversion drm_expected = { 1, 24, 0 };
#endif
   RADEONDRIPtr dri_priv = (RADEONDRIPtr) psp->pDevPriv;

   if ( ! driCheckDriDdxDrmVersions3( driver_name,
                                      &psp->dri_version, & dri_expected,
                                      &psp->ddx_version, & ddx_expected,
                                      &psp->drm_version, & drm_expected ) ) {
      return NULL;
   }

   if (!radeonInitDriver(psp))
       return NULL;

   /* for now fill in all modes */
   return radeonFillInModes( psp,
                             dri_priv->bpp,
                             (dri_priv->bpp == 16) ? 16 : 24,
                             (dri_priv->bpp == 16) ? 0  : 8, 1);
}
#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))

/**
 * This is the driver specific part of the createNewScreen entry point.
 * Called when using DRI2.
 *
 * \return the __GLcontextModes supported by this driver
 */
static const
__DRIconfig **radeonInitScreen2(__DRIscreen *psp)
{
   GLenum fb_format[3];
   GLenum fb_type[3];
   /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
    * support pageflipping at all.
    */
   static const GLenum back_buffer_modes[] = {
     GLX_NONE, GLX_SWAP_UNDEFINED_OML, /*, GLX_SWAP_COPY_OML*/
   };
   uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
   int color;
   __DRIconfig **configs = NULL;

   if (!radeonInitDriver(psp)) {
       return NULL;
    }
   depth_bits[0] = 0;
   stencil_bits[0] = 0;
   depth_bits[1] = 16;
   stencil_bits[1] = 0;
   depth_bits[2] = 24;
   stencil_bits[2] = 0;
   depth_bits[3] = 24;
   stencil_bits[3] = 8;

   msaa_samples_array[0] = 0;

   fb_format[0] = GL_RGB;
   fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;

   fb_format[1] = GL_BGR;
   fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;

   fb_format[2] = GL_BGRA;
   fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;

   for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
      __DRIconfig **new_configs;

      new_configs = driCreateConfigs(fb_format[color], fb_type[color],
                                     depth_bits,
                                     stencil_bits,
                                     ARRAY_SIZE(depth_bits),
                                     back_buffer_modes,
                                     ARRAY_SIZE(back_buffer_modes),
                                     msaa_samples_array,
                                     ARRAY_SIZE(msaa_samples_array),
                                     GL_TRUE);
      if (configs == NULL)
         configs = new_configs;
      else
         configs = driConcatConfigs(configs, new_configs);
   }

   if (configs == NULL) {
      fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
              __LINE__);
      return NULL;
   }

   return (const __DRIconfig **)configs;
}

/**
 * Get information about previous buffer swaps.
 */
static int
getSwapInfo( __DRIdrawable *dPriv, __DRIswapInfo * sInfo )
{
    struct radeon_framebuffer *rfb;

    if ( (dPriv == NULL) || (dPriv->driContextPriv == NULL)
         || (dPriv->driContextPriv->driverPrivate == NULL)
         || (sInfo == NULL) ) {
        return -1;
   }

    rfb = dPriv->driverPrivate;
    sInfo->swap_count = rfb->swap_count;
    sInfo->swap_ust = rfb->swap_ust;
    sInfo->swap_missed_count = rfb->swap_missed_count;

   sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
       ? driCalculateSwapUsage( dPriv, 0, rfb->swap_missed_ust )
       : 0.0;

   return 0;
}

const struct __DriverAPIRec driDriverAPI = {
   .InitScreen      = radeonInitScreen,
   .DestroyScreen   = radeonDestroyScreen,
#if defined(RADEON_R200)
   .CreateContext   = r200CreateContext,
   .DestroyContext  = r200DestroyContext,
#elif defined(RADEON_R600)
   .CreateContext   = r600CreateContext,
   .DestroyContext  = radeonDestroyContext,
#elif defined(RADEON_R300)
   .CreateContext   = r300CreateContext,
   .DestroyContext  = radeonDestroyContext,
#else
   .CreateContext   = r100CreateContext,
   .DestroyContext  = radeonDestroyContext,
#endif
   .CreateBuffer    = radeonCreateBuffer,
   .DestroyBuffer   = radeonDestroyBuffer,
   .SwapBuffers     = radeonSwapBuffers,
   .MakeCurrent     = radeonMakeCurrent,
   .UnbindContext   = radeonUnbindContext,
   .GetSwapInfo     = getSwapInfo,
   .GetDrawableMSC  = driDrawableGetMSC32,
   .WaitForMSC      = driWaitForMSC32,
   .WaitForSBC      = NULL,
   .SwapBuffersMSC  = NULL,
   .CopySubBuffer   = radeonCopySubBuffer,
    /* DRI2 */
   .InitScreen2     = radeonInitScreen2,
};

/* This is the table of extensions that the loader will dlsym() for. */
PUBLIC const __DRIextension *__driDriverExtensions[] = {
    &driCoreExtension.base,
    &driLegacyExtension.base,
    &driDRI2Extension.base,
    NULL
};