radeonsi: add GFX-IB-size query to the HUD
[mesa.git] / src / gallium / winsys / radeon / drm / radeon_drm_winsys.c
index 3ac57d25b5eb8ab0773e2bbf18fa6b105086e169..c61f3d97957a07016777207584aba02ca9c1fd3a 100644 (file)
 #include "radeon_drm_cs.h"
 #include "radeon_drm_public.h"
 
-#include "pipebuffer/pb_bufmgr.h"
 #include "util/u_memory.h"
+#include "util/u_hash_table.h"
 
 #include <xf86drm.h>
 #include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <radeon_surface.h>
 
-#ifndef RADEON_INFO_WANT_HYPERZ
-#define RADEON_INFO_WANT_HYPERZ 7
-#endif
-#ifndef RADEON_INFO_WANT_CMASK
-#define RADEON_INFO_WANT_CMASK 8
-#endif
+static struct util_hash_table *fd_tab = NULL;
+static mtx_t fd_tab_mutex = _MTX_INITIALIZER_NP;
 
 /* Enable/disable feature access for one command stream.
- * If enable == TRUE, return TRUE on success.
- * Otherwise, return FALSE.
+ * If enable == true, return true on success.
+ * Otherwise, return false.
  *
  * We basically do the same thing kernel does, because we have to deal
  * with multiple contexts (here command streams) backed by one winsys. */
-static boolean radeon_set_fd_access(struct radeon_drm_cs *applier,
-                                    struct radeon_drm_cs **owner,
-                                    pipe_mutex *mutex,
-                                    unsigned request, boolean enable)
+static bool radeon_set_fd_access(struct radeon_drm_cs *applier,
+                                 struct radeon_drm_cs **owner,
+                                 mtx_t *mutex,
+                                 unsigned request, const char *request_name,
+                                 bool enable)
 {
-    struct drm_radeon_info info = {0};
+    struct drm_radeon_info info;
     unsigned value = enable ? 1 : 0;
 
-    pipe_mutex_lock(*mutex);
+    memset(&info, 0, sizeof(info));
+
+    mtx_lock(&*mutex);
 
     /* Early exit if we are sure the request will fail. */
     if (enable) {
         if (*owner) {
-            pipe_mutex_unlock(*mutex);
-            return FALSE;
+            mtx_unlock(&*mutex);
+            return false;
         }
     } else {
         if (*owner != applier) {
-            pipe_mutex_unlock(*mutex);
-            return FALSE;
+            mtx_unlock(&*mutex);
+            return false;
         }
     }
 
@@ -82,37 +86,55 @@ static boolean radeon_set_fd_access(struct radeon_drm_cs *applier,
     info.request = request;
     if (drmCommandWriteRead(applier->ws->fd, DRM_RADEON_INFO,
                             &info, sizeof(info)) != 0) {
-        pipe_mutex_unlock(*mutex);
-        return FALSE;
+        mtx_unlock(&*mutex);
+        return false;
     }
 
     /* Update the rights in the winsys. */
     if (enable) {
         if (value) {
             *owner = applier;
-            fprintf(stderr, "radeon: Acquired Hyper-Z.\n");
-            pipe_mutex_unlock(*mutex);
-            return TRUE;
+            mtx_unlock(&*mutex);
+            return true;
         }
     } else {
         *owner = NULL;
-        fprintf(stderr, "radeon: Released Hyper-Z.\n");
     }
 
-    pipe_mutex_unlock(*mutex);
-    return FALSE;
+    mtx_unlock(&*mutex);
+    return false;
+}
+
+static bool radeon_get_drm_value(int fd, unsigned request,
+                                 const char *errname, uint32_t *out)
+{
+    struct drm_radeon_info info;
+    int retval;
+
+    memset(&info, 0, sizeof(info));
+
+    info.value = (unsigned long)out;
+    info.request = request;
+
+    retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
+    if (retval) {
+        if (errname) {
+            fprintf(stderr, "radeon: Failed to get %s, error number %d\n",
+                    errname, retval);
+        }
+        return false;
+    }
+    return true;
 }
 
 /* Helper function to do the ioctls needed for setup and init. */
-static void do_ioctls(struct radeon_drm_winsys *winsys)
+static bool do_winsys_init(struct radeon_drm_winsys *ws)
 {
-    struct drm_radeon_gem_info gem_info = {0};
-    struct drm_radeon_info info = {0};
-    int target = 0;
+    struct drm_radeon_gem_info gem_info;
     int retval;
     drmVersionPtr version;
 
-    info.value = (unsigned long)&target;
+    memset(&gem_info, 0, sizeof(gem_info));
 
     /* We do things in a specific order here.
      *
@@ -123,183 +145,722 @@ static void do_ioctls(struct radeon_drm_winsys *winsys)
      * for all Radeons. If this fails, we probably got handed an FD for some
      * non-Radeon card.
      *
+     * The GEM info is actually bogus on the kernel side, as well as our side
+     * (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because
+     * we don't actually use the info for anything yet.
+     *
      * The GB and Z pipe requests should always succeed, but they might not
      * return sensical values for all chipsets, but that's alright because
      * the pipe drivers already know that.
-     *
-     * The GEM info is actually bogus on the kernel side, as well as our side
-     * (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because
-     * we don't actually use the info for anything yet. */
+     */
 
-    version = drmGetVersion(winsys->fd);
+    /* Get DRM version. */
+    version = drmGetVersion(ws->fd);
     if (version->version_major != 2 ||
-        version->version_minor < 3) {
+        version->version_minor < 12) {
         fprintf(stderr, "%s: DRM version is %d.%d.%d but this driver is "
-                "only compatible with 2.3.x (kernel 2.6.34) and later.\n",
+                "only compatible with 2.12.0 (kernel 3.2) or later.\n",
                 __FUNCTION__,
                 version->version_major,
                 version->version_minor,
                 version->version_patchlevel);
         drmFreeVersion(version);
-        exit(1);
+        return false;
     }
 
-    winsys->drm_major = version->version_major;
-    winsys->drm_minor = version->version_minor;
-    winsys->drm_patchlevel = version->version_patchlevel;
+    ws->info.drm_major = version->version_major;
+    ws->info.drm_minor = version->version_minor;
+    ws->info.drm_patchlevel = version->version_patchlevel;
+    drmFreeVersion(version);
 
-    info.request = RADEON_INFO_DEVICE_ID;
-    retval = drmCommandWriteRead(winsys->fd, DRM_RADEON_INFO, &info, sizeof(info));
-    if (retval) {
-        fprintf(stderr, "%s: Failed to get PCI ID, "
-                "error number %d\n", __FUNCTION__, retval);
-        exit(1);
+    /* Get PCI ID. */
+    if (!radeon_get_drm_value(ws->fd, RADEON_INFO_DEVICE_ID, "PCI ID",
+                              &ws->info.pci_id))
+        return false;
+
+    /* Check PCI ID. */
+    switch (ws->info.pci_id) {
+#define CHIPSET(pci_id, name, cfamily) case pci_id: ws->info.family = CHIP_##cfamily; ws->gen = DRV_R300; break;
+#include "pci_ids/r300_pci_ids.h"
+#undef CHIPSET
+
+#define CHIPSET(pci_id, name, cfamily) case pci_id: ws->info.family = CHIP_##cfamily; ws->gen = DRV_R600; break;
+#include "pci_ids/r600_pci_ids.h"
+#undef CHIPSET
+
+#define CHIPSET(pci_id, name, cfamily) case pci_id: ws->info.family = CHIP_##cfamily; ws->gen = DRV_SI; break;
+#include "pci_ids/radeonsi_pci_ids.h"
+#undef CHIPSET
+
+    default:
+        fprintf(stderr, "radeon: Invalid PCI ID.\n");
+        return false;
     }
-    winsys->pci_id = target;
 
-    info.request = RADEON_INFO_NUM_GB_PIPES;
-    retval = drmCommandWriteRead(winsys->fd, DRM_RADEON_INFO, &info, sizeof(info));
-    if (retval) {
-        fprintf(stderr, "%s: Failed to get GB pipe count, "
-                "error number %d\n", __FUNCTION__, retval);
-        exit(1);
+    switch (ws->info.family) {
+    default:
+    case CHIP_UNKNOWN:
+        fprintf(stderr, "radeon: Unknown family.\n");
+        return false;
+    case CHIP_R300:
+    case CHIP_R350:
+    case CHIP_RV350:
+    case CHIP_RV370:
+    case CHIP_RV380:
+    case CHIP_RS400:
+    case CHIP_RC410:
+    case CHIP_RS480:
+        ws->info.chip_class = R300;
+        break;
+    case CHIP_R420:     /* R4xx-based cores. */
+    case CHIP_R423:
+    case CHIP_R430:
+    case CHIP_R480:
+    case CHIP_R481:
+    case CHIP_RV410:
+    case CHIP_RS600:
+    case CHIP_RS690:
+    case CHIP_RS740:
+        ws->info.chip_class = R400;
+        break;
+    case CHIP_RV515:    /* R5xx-based cores. */
+    case CHIP_R520:
+    case CHIP_RV530:
+    case CHIP_R580:
+    case CHIP_RV560:
+    case CHIP_RV570:
+        ws->info.chip_class = R500;
+        break;
+    case CHIP_R600:
+    case CHIP_RV610:
+    case CHIP_RV630:
+    case CHIP_RV670:
+    case CHIP_RV620:
+    case CHIP_RV635:
+    case CHIP_RS780:
+    case CHIP_RS880:
+        ws->info.chip_class = R600;
+        break;
+    case CHIP_RV770:
+    case CHIP_RV730:
+    case CHIP_RV710:
+    case CHIP_RV740:
+        ws->info.chip_class = R700;
+        break;
+    case CHIP_CEDAR:
+    case CHIP_REDWOOD:
+    case CHIP_JUNIPER:
+    case CHIP_CYPRESS:
+    case CHIP_HEMLOCK:
+    case CHIP_PALM:
+    case CHIP_SUMO:
+    case CHIP_SUMO2:
+    case CHIP_BARTS:
+    case CHIP_TURKS:
+    case CHIP_CAICOS:
+        ws->info.chip_class = EVERGREEN;
+        break;
+    case CHIP_CAYMAN:
+    case CHIP_ARUBA:
+        ws->info.chip_class = CAYMAN;
+        break;
+    case CHIP_TAHITI:
+    case CHIP_PITCAIRN:
+    case CHIP_VERDE:
+    case CHIP_OLAND:
+    case CHIP_HAINAN:
+        ws->info.chip_class = SI;
+        break;
+    case CHIP_BONAIRE:
+    case CHIP_KAVERI:
+    case CHIP_KABINI:
+    case CHIP_HAWAII:
+    case CHIP_MULLINS:
+        ws->info.chip_class = CIK;
+        break;
     }
-    winsys->gb_pipes = target;
 
-    info.request = RADEON_INFO_NUM_Z_PIPES;
-    retval = drmCommandWriteRead(winsys->fd, DRM_RADEON_INFO, &info, sizeof(info));
-    if (retval) {
-        fprintf(stderr, "%s: Failed to get Z pipe count, "
-                "error number %d\n", __FUNCTION__, retval);
-        exit(1);
+    /* Set which chips don't have dedicated VRAM. */
+    switch (ws->info.family) {
+    case CHIP_RS400:
+    case CHIP_RC410:
+    case CHIP_RS480:
+    case CHIP_RS600:
+    case CHIP_RS690:
+    case CHIP_RS740:
+    case CHIP_RS780:
+    case CHIP_RS880:
+    case CHIP_PALM:
+    case CHIP_SUMO:
+    case CHIP_SUMO2:
+    case CHIP_ARUBA:
+    case CHIP_KAVERI:
+    case CHIP_KABINI:
+    case CHIP_MULLINS:
+       ws->info.has_dedicated_vram = false;
+       break;
+
+    default:
+       ws->info.has_dedicated_vram = true;
+    }
+
+    /* Check for dma */
+    ws->info.num_sdma_rings = 0;
+    /* DMA is disabled on R700. There is IB corruption and hangs. */
+    if (ws->info.chip_class >= EVERGREEN && ws->info.drm_minor >= 27) {
+        ws->info.num_sdma_rings = 1;
+    }
+
+    /* Check for UVD and VCE */
+    ws->info.has_hw_decode = false;
+    ws->info.vce_fw_version = 0x00000000;
+    if (ws->info.drm_minor >= 32) {
+       uint32_t value = RADEON_CS_RING_UVD;
+        if (radeon_get_drm_value(ws->fd, RADEON_INFO_RING_WORKING,
+                                 "UVD Ring working", &value))
+            ws->info.has_hw_decode = value;
+
+        value = RADEON_CS_RING_VCE;
+        if (radeon_get_drm_value(ws->fd, RADEON_INFO_RING_WORKING,
+                                 NULL, &value) && value) {
+
+            if (radeon_get_drm_value(ws->fd, RADEON_INFO_VCE_FW_VERSION,
+                                     "VCE FW version", &value))
+                ws->info.vce_fw_version = value;
+       }
     }
-    winsys->z_pipes = target;
 
-    retval = drmCommandWriteRead(winsys->fd, DRM_RADEON_GEM_INFO,
+    /* Check for userptr support. */
+    {
+        struct drm_radeon_gem_userptr args = {0};
+
+        /* If the ioctl doesn't exist, -EINVAL is returned.
+         *
+         * If the ioctl exists, it should return -EACCES
+         * if RADEON_GEM_USERPTR_READONLY or RADEON_GEM_USERPTR_REGISTER
+         * aren't set.
+         */
+        ws->info.has_userptr =
+            drmCommandWriteRead(ws->fd, DRM_RADEON_GEM_USERPTR,
+                                &args, sizeof(args)) == -EACCES;
+    }
+
+    /* Get GEM info. */
+    retval = drmCommandWriteRead(ws->fd, DRM_RADEON_GEM_INFO,
             &gem_info, sizeof(gem_info));
     if (retval) {
-        fprintf(stderr, "%s: Failed to get MM info, error number %d\n",
-                __FUNCTION__, retval);
-        exit(1);
+        fprintf(stderr, "radeon: Failed to get MM info, error number %d\n",
+                retval);
+        return false;
+    }
+    ws->info.gart_size = gem_info.gart_size;
+    ws->info.vram_size = gem_info.vram_size;
+    ws->info.vram_vis_size = gem_info.vram_visible;
+    /* Older versions of the kernel driver reported incorrect values, and
+     * didn't support more than 256MB of visible VRAM anyway
+     */
+    if (ws->info.drm_minor < 49)
+        ws->info.vram_vis_size = MIN2(ws->info.vram_vis_size, 256*1024*1024);
+
+    /* Radeon allocates all buffers as contigous, which makes large allocations
+     * unlikely to succeed. */
+    ws->info.max_alloc_size = MAX2(ws->info.vram_size, ws->info.gart_size) * 0.7;
+    if (ws->info.has_dedicated_vram)
+        ws->info.max_alloc_size = MIN2(ws->info.vram_size * 0.7, ws->info.max_alloc_size);
+    if (ws->info.drm_minor < 40)
+        ws->info.max_alloc_size = MIN2(ws->info.max_alloc_size, 256*1024*1024);
+
+    /* Get max clock frequency info and convert it to MHz */
+    radeon_get_drm_value(ws->fd, RADEON_INFO_MAX_SCLK, NULL,
+                         &ws->info.max_shader_clock);
+    ws->info.max_shader_clock /= 1000;
+
+    /* Default value. */
+    ws->info.enabled_rb_mask = u_bit_consecutive(0, ws->info.num_render_backends);
+    /* This fails on non-GCN or older kernels: */
+    radeon_get_drm_value(ws->fd, RADEON_INFO_SI_BACKEND_ENABLED_MASK, NULL,
+                         &ws->info.enabled_rb_mask);
+
+    ws->num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+
+    /* Generation-specific queries. */
+    if (ws->gen == DRV_R300) {
+        if (!radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_GB_PIPES,
+                                  "GB pipe count",
+                                  &ws->info.r300_num_gb_pipes))
+            return false;
+
+        if (!radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_Z_PIPES,
+                                  "Z pipe count",
+                                  &ws->info.r300_num_z_pipes))
+            return false;
+    }
+    else if (ws->gen >= DRV_R600) {
+        uint32_t tiling_config = 0;
+
+        if (!radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_BACKENDS,
+                                  "num backends",
+                                  &ws->info.num_render_backends))
+            return false;
+
+        /* get the GPU counter frequency, failure is not fatal */
+        radeon_get_drm_value(ws->fd, RADEON_INFO_CLOCK_CRYSTAL_FREQ, NULL,
+                             &ws->info.clock_crystal_freq);
+
+        radeon_get_drm_value(ws->fd, RADEON_INFO_TILING_CONFIG, NULL,
+                             &tiling_config);
+
+        ws->info.r600_num_banks =
+            ws->info.chip_class >= EVERGREEN ?
+                4 << ((tiling_config & 0xf0) >> 4) :
+                4 << ((tiling_config & 0x30) >> 4);
+
+        ws->info.pipe_interleave_bytes =
+            ws->info.chip_class >= EVERGREEN ?
+                256 << ((tiling_config & 0xf00) >> 8) :
+                256 << ((tiling_config & 0xc0) >> 6);
+
+        if (!ws->info.pipe_interleave_bytes)
+            ws->info.pipe_interleave_bytes =
+                ws->info.chip_class >= EVERGREEN ? 512 : 256;
+
+        radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_TILE_PIPES, NULL,
+                             &ws->info.num_tile_pipes);
+
+        /* "num_tiles_pipes" must be equal to the number of pipes (Px) in the
+         * pipe config field of the GB_TILE_MODE array. Only one card (Tahiti)
+         * reports a different value (12). Fix it by setting what's in the
+         * GB_TILE_MODE array (8).
+         */
+        if (ws->gen == DRV_SI && ws->info.num_tile_pipes == 12)
+            ws->info.num_tile_pipes = 8;
+
+        if (radeon_get_drm_value(ws->fd, RADEON_INFO_BACKEND_MAP, NULL,
+                                  &ws->info.r600_gb_backend_map))
+            ws->info.r600_gb_backend_map_valid = true;
+
+        ws->info.has_virtual_memory = false;
+        if (ws->info.drm_minor >= 13) {
+            uint32_t ib_vm_max_size;
+
+            ws->info.has_virtual_memory = true;
+            if (!radeon_get_drm_value(ws->fd, RADEON_INFO_VA_START, NULL,
+                                      &ws->va_start))
+                ws->info.has_virtual_memory = false;
+            if (!radeon_get_drm_value(ws->fd, RADEON_INFO_IB_VM_MAX_SIZE, NULL,
+                                      &ib_vm_max_size))
+                ws->info.has_virtual_memory = false;
+            radeon_get_drm_value(ws->fd, RADEON_INFO_VA_UNMAP_WORKING, NULL,
+                                 &ws->va_unmap_working);
+        }
+       if (ws->gen == DRV_R600 && !debug_get_bool_option("RADEON_VA", false))
+               ws->info.has_virtual_memory = false;
     }
-    winsys->gart_size = gem_info.gart_size;
-    winsys->vram_size = gem_info.vram_size;
 
-    drmFreeVersion(version);
+    /* Get max pipes, this is only needed for compute shaders.  All evergreen+
+     * chips have at least 2 pipes, so we use 2 as a default. */
+    ws->info.r600_max_quad_pipes = 2;
+    radeon_get_drm_value(ws->fd, RADEON_INFO_MAX_PIPES, NULL,
+                         &ws->info.r600_max_quad_pipes);
+
+    /* All GPUs have at least one compute unit */
+    ws->info.num_good_compute_units = 1;
+    radeon_get_drm_value(ws->fd, RADEON_INFO_ACTIVE_CU_COUNT, NULL,
+                         &ws->info.num_good_compute_units);
+
+    radeon_get_drm_value(ws->fd, RADEON_INFO_MAX_SE, NULL,
+                         &ws->info.max_se);
+
+    if (!ws->info.max_se) {
+        switch (ws->info.family) {
+        default:
+            ws->info.max_se = 1;
+            break;
+        case CHIP_CYPRESS:
+        case CHIP_HEMLOCK:
+        case CHIP_BARTS:
+        case CHIP_CAYMAN:
+        case CHIP_TAHITI:
+        case CHIP_PITCAIRN:
+        case CHIP_BONAIRE:
+            ws->info.max_se = 2;
+            break;
+        case CHIP_HAWAII:
+            ws->info.max_se = 4;
+            break;
+        }
+    }
 
-    winsys->num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+    radeon_get_drm_value(ws->fd, RADEON_INFO_MAX_SH_PER_SE, NULL,
+                         &ws->info.max_sh_per_se);
+
+    radeon_get_drm_value(ws->fd, RADEON_INFO_ACCEL_WORKING2, NULL,
+                         &ws->accel_working2);
+    if (ws->info.family == CHIP_HAWAII && ws->accel_working2 < 2) {
+        fprintf(stderr, "radeon: GPU acceleration for Hawaii disabled, "
+                "returned accel_working2 value %u is smaller than 2. "
+                "Please install a newer kernel.\n",
+                ws->accel_working2);
+        return false;
+    }
+
+    if (ws->info.chip_class == CIK) {
+        if (!radeon_get_drm_value(ws->fd, RADEON_INFO_CIK_MACROTILE_MODE_ARRAY, NULL,
+                                  ws->info.cik_macrotile_mode_array)) {
+            fprintf(stderr, "radeon: Kernel 3.13 is required for CIK support.\n");
+            return false;
+        }
+    }
+
+    if (ws->info.chip_class >= SI) {
+        if (!radeon_get_drm_value(ws->fd, RADEON_INFO_SI_TILE_MODE_ARRAY, NULL,
+                                  ws->info.si_tile_mode_array)) {
+            fprintf(stderr, "radeon: Kernel 3.10 is required for SI support.\n");
+            return false;
+        }
+    }
+
+    /* Hawaii with old firmware needs type2 nop packet.
+     * accel_working2 with value 3 indicates the new firmware.
+     */
+    ws->info.gfx_ib_pad_with_type2 = ws->info.chip_class <= SI ||
+                                    (ws->info.family == CHIP_HAWAII &&
+                                     ws->accel_working2 < 3);
+    ws->info.tcc_cache_line_size = 64; /* TC L2 line size on GCN */
+
+    ws->check_vm = strstr(debug_get_option("R600_DEBUG", ""), "check_vm") != NULL;
+
+    return true;
 }
 
 static void radeon_winsys_destroy(struct radeon_winsys *rws)
 {
     struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
 
-    pipe_mutex_destroy(ws->hyperz_owner_mutex);
-    pipe_mutex_destroy(ws->cmask_owner_mutex);
+    if (util_queue_is_initialized(&ws->cs_queue))
+        util_queue_destroy(&ws->cs_queue);
+
+    mtx_destroy(&ws->hyperz_owner_mutex);
+    mtx_destroy(&ws->cmask_owner_mutex);
+
+    if (ws->info.has_virtual_memory)
+        pb_slabs_deinit(&ws->bo_slabs);
+    pb_cache_deinit(&ws->bo_cache);
+
+    if (ws->gen >= DRV_R600) {
+        radeon_surface_manager_free(ws->surf_man);
+    }
+
+    util_hash_table_destroy(ws->bo_names);
+    util_hash_table_destroy(ws->bo_handles);
+    util_hash_table_destroy(ws->bo_vas);
+    mtx_destroy(&ws->bo_handles_mutex);
+    mtx_destroy(&ws->bo_va_mutex);
+    mtx_destroy(&ws->bo_fence_lock);
+
+    if (ws->fd >= 0)
+        close(ws->fd);
 
-    ws->cman->destroy(ws->cman);
-    ws->kman->destroy(ws->kman);
     FREE(rws);
 }
 
-static uint32_t radeon_get_value(struct radeon_winsys *rws,
-                                 enum radeon_value_id id)
+static void radeon_query_info(struct radeon_winsys *rws,
+                              struct radeon_info *info)
 {
-    struct radeon_drm_winsys *ws = (struct radeon_drm_winsys *)rws;
-
-    switch(id) {
-    case RADEON_VID_PCI_ID:
-       return ws->pci_id;
-    case RADEON_VID_R300_GB_PIPES:
-       return ws->gb_pipes;
-    case RADEON_VID_R300_Z_PIPES:
-       return ws->z_pipes;
-    case RADEON_VID_GART_SIZE:
-        return ws->gart_size;
-    case RADEON_VID_VRAM_SIZE:
-        return ws->vram_size;
-    case RADEON_VID_DRM_MAJOR:
-        return ws->drm_major;
-    case RADEON_VID_DRM_MINOR:
-        return ws->drm_minor;
-    case RADEON_VID_DRM_PATCHLEVEL:
-        return ws->drm_patchlevel;
-    case RADEON_VID_DRM_2_6_0:
-        return ws->drm_major*100 + ws->drm_minor >= 206;
-    case RADEON_VID_DRM_2_8_0:
-        return ws->drm_major*100 + ws->drm_minor >= 208;
-    }
-    return 0;
+    *info = ((struct radeon_drm_winsys *)rws)->info;
 }
 
-static boolean radeon_cs_request_feature(struct radeon_winsys_cs *rcs,
-                                         enum radeon_feature_id fid,
-                                         boolean enable)
+static bool radeon_cs_request_feature(struct radeon_winsys_cs *rcs,
+                                      enum radeon_feature_id fid,
+                                      bool enable)
 {
     struct radeon_drm_cs *cs = radeon_drm_cs(rcs);
 
     switch (fid) {
-    case RADEON_FID_HYPERZ_RAM_ACCESS:
-        if (debug_get_bool_option("RADEON_HYPERZ", FALSE)) {
-            return radeon_set_fd_access(cs, &cs->ws->hyperz_owner,
-                                        &cs->ws->hyperz_owner_mutex,
-                                        RADEON_INFO_WANT_HYPERZ, enable);
-        } else {
-            return FALSE;
-        }
+    case RADEON_FID_R300_HYPERZ_ACCESS:
+        return radeon_set_fd_access(cs, &cs->ws->hyperz_owner,
+                                    &cs->ws->hyperz_owner_mutex,
+                                    RADEON_INFO_WANT_HYPERZ, "Hyper-Z",
+                                    enable);
+
+    case RADEON_FID_R300_CMASK_ACCESS:
+        return radeon_set_fd_access(cs, &cs->ws->cmask_owner,
+                                    &cs->ws->cmask_owner_mutex,
+                                    RADEON_INFO_WANT_CMASK, "AA optimizations",
+                                    enable);
+    }
+    return false;
+}
 
-    case RADEON_FID_CMASK_RAM_ACCESS:
-        if (debug_get_bool_option("RADEON_CMASK", FALSE)) {
-            return radeon_set_fd_access(cs, &cs->ws->cmask_owner,
-                                        &cs->ws->cmask_owner_mutex,
-                                        RADEON_INFO_WANT_CMASK, enable);
-        } else {
-            return FALSE;
+static uint64_t radeon_query_value(struct radeon_winsys *rws,
+                                   enum radeon_value_id value)
+{
+    struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
+    uint64_t retval = 0;
+
+    switch (value) {
+    case RADEON_REQUESTED_VRAM_MEMORY:
+        return ws->allocated_vram;
+    case RADEON_REQUESTED_GTT_MEMORY:
+        return ws->allocated_gtt;
+    case RADEON_MAPPED_VRAM:
+       return ws->mapped_vram;
+    case RADEON_MAPPED_GTT:
+       return ws->mapped_gtt;
+    case RADEON_BUFFER_WAIT_TIME_NS:
+        return ws->buffer_wait_time;
+    case RADEON_NUM_MAPPED_BUFFERS:
+        return ws->num_mapped_buffers;
+    case RADEON_TIMESTAMP:
+        if (ws->info.drm_minor < 20 || ws->gen < DRV_R600) {
+            assert(0);
+            return 0;
         }
+
+        radeon_get_drm_value(ws->fd, RADEON_INFO_TIMESTAMP, "timestamp",
+                             (uint32_t*)&retval);
+        return retval;
+    case RADEON_NUM_GFX_IBS:
+        return ws->num_gfx_IBs;
+    case RADEON_NUM_SDMA_IBS:
+        return ws->num_sdma_IBs;
+    case RADEON_NUM_BYTES_MOVED:
+        radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_BYTES_MOVED,
+                             "num-bytes-moved", (uint32_t*)&retval);
+        return retval;
+    case RADEON_NUM_EVICTIONS:
+    case RADEON_NUM_VRAM_CPU_PAGE_FAULTS:
+    case RADEON_VRAM_VIS_USAGE:
+    case RADEON_GFX_BO_LIST_COUNTER:
+    case RADEON_GFX_IB_SIZE_COUNTER:
+        return 0; /* unimplemented */
+    case RADEON_VRAM_USAGE:
+        radeon_get_drm_value(ws->fd, RADEON_INFO_VRAM_USAGE,
+                             "vram-usage", (uint32_t*)&retval);
+        return retval;
+    case RADEON_GTT_USAGE:
+        radeon_get_drm_value(ws->fd, RADEON_INFO_GTT_USAGE,
+                             "gtt-usage", (uint32_t*)&retval);
+        return retval;
+    case RADEON_GPU_TEMPERATURE:
+        radeon_get_drm_value(ws->fd, RADEON_INFO_CURRENT_GPU_TEMP,
+                             "gpu-temp", (uint32_t*)&retval);
+        return retval;
+    case RADEON_CURRENT_SCLK:
+        radeon_get_drm_value(ws->fd, RADEON_INFO_CURRENT_GPU_SCLK,
+                             "current-gpu-sclk", (uint32_t*)&retval);
+        return retval;
+    case RADEON_CURRENT_MCLK:
+        radeon_get_drm_value(ws->fd, RADEON_INFO_CURRENT_GPU_MCLK,
+                             "current-gpu-mclk", (uint32_t*)&retval);
+        return retval;
+    case RADEON_GPU_RESET_COUNTER:
+        radeon_get_drm_value(ws->fd, RADEON_INFO_GPU_RESET_COUNTER,
+                             "gpu-reset-counter", (uint32_t*)&retval);
+        return retval;
+    case RADEON_CS_THREAD_TIME:
+        return util_queue_get_thread_time_nano(&ws->cs_queue, 0);
     }
-    return FALSE;
+    return 0;
+}
+
+static bool radeon_read_registers(struct radeon_winsys *rws,
+                                  unsigned reg_offset,
+                                  unsigned num_registers, uint32_t *out)
+{
+    struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
+    unsigned i;
+
+    for (i = 0; i < num_registers; i++) {
+        uint32_t reg = reg_offset + i*4;
+
+        if (!radeon_get_drm_value(ws->fd, RADEON_INFO_READ_REG, NULL, &reg))
+            return false;
+        out[i] = reg;
+    }
+    return true;
+}
+
+static unsigned hash_fd(void *key)
+{
+    int fd = pointer_to_intptr(key);
+    struct stat stat;
+    fstat(fd, &stat);
+
+    return stat.st_dev ^ stat.st_ino ^ stat.st_rdev;
+}
+
+static int compare_fd(void *key1, void *key2)
+{
+    int fd1 = pointer_to_intptr(key1);
+    int fd2 = pointer_to_intptr(key2);
+    struct stat stat1, stat2;
+    fstat(fd1, &stat1);
+    fstat(fd2, &stat2);
+
+    return stat1.st_dev != stat2.st_dev ||
+           stat1.st_ino != stat2.st_ino ||
+           stat1.st_rdev != stat2.st_rdev;
+}
+
+DEBUG_GET_ONCE_BOOL_OPTION(thread, "RADEON_THREAD", true)
+
+static bool radeon_winsys_unref(struct radeon_winsys *ws)
+{
+    struct radeon_drm_winsys *rws = (struct radeon_drm_winsys*)ws;
+    bool destroy;
+
+    /* When the reference counter drops to zero, remove the fd from the table.
+     * This must happen while the mutex is locked, so that
+     * radeon_drm_winsys_create in another thread doesn't get the winsys
+     * from the table when the counter drops to 0. */
+    mtx_lock(&fd_tab_mutex);
+
+    destroy = pipe_reference(&rws->reference, NULL);
+    if (destroy && fd_tab)
+        util_hash_table_remove(fd_tab, intptr_to_pointer(rws->fd));
+
+    mtx_unlock(&fd_tab_mutex);
+    return destroy;
+}
+
+#define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
+
+static unsigned handle_hash(void *key)
+{
+    return PTR_TO_UINT(key);
 }
 
-struct radeon_winsys *radeon_drm_winsys_create(int fd)
+static int handle_compare(void *key1, void *key2)
 {
-    struct radeon_drm_winsys *ws = CALLOC_STRUCT(radeon_drm_winsys);
+    return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
+}
+
+PUBLIC struct radeon_winsys *
+radeon_drm_winsys_create(int fd, const struct pipe_screen_config *config,
+                        radeon_screen_create_t screen_create)
+{
+    struct radeon_drm_winsys *ws;
+
+    mtx_lock(&fd_tab_mutex);
+    if (!fd_tab) {
+        fd_tab = util_hash_table_create(hash_fd, compare_fd);
+    }
+
+    ws = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
+    if (ws) {
+        pipe_reference(NULL, &ws->reference);
+        mtx_unlock(&fd_tab_mutex);
+        return &ws->base;
+    }
+
+    ws = CALLOC_STRUCT(radeon_drm_winsys);
     if (!ws) {
+        mtx_unlock(&fd_tab_mutex);
         return NULL;
     }
 
-    ws->fd = fd;
-    do_ioctls(ws);
+    ws->fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+
+    if (!do_winsys_init(ws))
+        goto fail1;
+
+    pb_cache_init(&ws->bo_cache, 500000, ws->check_vm ? 1.0f : 2.0f, 0,
+                  MIN2(ws->info.vram_size, ws->info.gart_size),
+                  radeon_bo_destroy,
+                  radeon_bo_can_reclaim);
+
+    if (ws->info.has_virtual_memory) {
+        /* There is no fundamental obstacle to using slab buffer allocation
+         * without GPUVM, but enabling it requires making sure that the drivers
+         * honor the address offset.
+         */
+        if (!pb_slabs_init(&ws->bo_slabs,
+                           RADEON_SLAB_MIN_SIZE_LOG2, RADEON_SLAB_MAX_SIZE_LOG2,
+                           RADEON_MAX_SLAB_HEAPS,
+                           ws,
+                           radeon_bo_can_reclaim_slab,
+                           radeon_bo_slab_alloc,
+                           radeon_bo_slab_free))
+            goto fail_cache;
+
+        ws->info.min_alloc_size = 1 << RADEON_SLAB_MIN_SIZE_LOG2;
+    } else {
+        ws->info.min_alloc_size = ws->info.gart_page_size;
+    }
 
-    if (!is_r3xx(ws->pci_id)) {
-        goto fail;
+    if (ws->gen >= DRV_R600) {
+        ws->surf_man = radeon_surface_manager_new(ws->fd);
+        if (!ws->surf_man)
+            goto fail_slab;
     }
 
-    /* Create managers. */
-    ws->kman = radeon_bomgr_create(ws);
-    if (!ws->kman)
-       goto fail;
-    ws->cman = pb_cache_manager_create(ws->kman, 1000000);
-    if (!ws->cman)
-       goto fail;
+    /* init reference */
+    pipe_reference_init(&ws->reference, 1);
 
     /* Set functions. */
+    ws->base.unref = radeon_winsys_unref;
     ws->base.destroy = radeon_winsys_destroy;
-    ws->base.get_value = radeon_get_value;
+    ws->base.query_info = radeon_query_info;
     ws->base.cs_request_feature = radeon_cs_request_feature;
+    ws->base.query_value = radeon_query_value;
+    ws->base.read_registers = radeon_read_registers;
 
-    radeon_bomgr_init_functions(ws);
+    radeon_drm_bo_init_functions(ws);
     radeon_drm_cs_init_functions(ws);
+    radeon_surface_init_functions(ws);
+
+    (void) mtx_init(&ws->hyperz_owner_mutex, mtx_plain);
+    (void) mtx_init(&ws->cmask_owner_mutex, mtx_plain);
 
-    pipe_mutex_init(ws->hyperz_owner_mutex);
-    pipe_mutex_init(ws->cmask_owner_mutex);
+    ws->bo_names = util_hash_table_create(handle_hash, handle_compare);
+    ws->bo_handles = util_hash_table_create(handle_hash, handle_compare);
+    ws->bo_vas = util_hash_table_create(handle_hash, handle_compare);
+    (void) mtx_init(&ws->bo_handles_mutex, mtx_plain);
+    (void) mtx_init(&ws->bo_va_mutex, mtx_plain);
+    (void) mtx_init(&ws->bo_fence_lock, mtx_plain);
+    ws->va_offset = ws->va_start;
+    list_inithead(&ws->va_holes);
+
+    /* TTM aligns the BO size to the CPU page size */
+    ws->info.gart_page_size = sysconf(_SC_PAGESIZE);
+
+    if (ws->num_cpus > 1 && debug_get_option_thread())
+        util_queue_init(&ws->cs_queue, "radeon_cs", 8, 1, 0);
+
+    /* Create the screen at the end. The winsys must be initialized
+     * completely.
+     *
+     * Alternatively, we could create the screen based on "ws->gen"
+     * and link all drivers into one binary blob. */
+    ws->base.screen = screen_create(&ws->base, config);
+    if (!ws->base.screen) {
+        radeon_winsys_destroy(&ws->base);
+        mtx_unlock(&fd_tab_mutex);
+        return NULL;
+    }
+
+    util_hash_table_set(fd_tab, intptr_to_pointer(ws->fd), ws);
+
+    /* We must unlock the mutex once the winsys is fully initialized, so that
+     * other threads attempting to create the winsys from the same fd will
+     * get a fully initialized winsys and not just half-way initialized. */
+    mtx_unlock(&fd_tab_mutex);
 
     return &ws->base;
 
-fail:
-    if (ws->cman)
-       ws->cman->destroy(ws->cman);
-    if (ws->kman)
-       ws->kman->destroy(ws->kman);
+fail_slab:
+    if (ws->info.has_virtual_memory)
+        pb_slabs_deinit(&ws->bo_slabs);
+fail_cache:
+    pb_cache_deinit(&ws->bo_cache);
+fail1:
+    mtx_unlock(&fd_tab_mutex);
+    if (ws->surf_man)
+        radeon_surface_manager_free(ws->surf_man);
+    if (ws->fd >= 0)
+        close(ws->fd);
+
     FREE(ws);
     return NULL;
 }