winsys/amdgpu+radeon: process AMD_DEBUG in addition to R600_DEBUG
[mesa.git] / src / gallium / winsys / amdgpu / drm / amdgpu_winsys.c
index 2cbc39c0c7005975fe489dc934f5e4ab80f74195..a89432d8594c6b76b4c7449c1a0d7043c83bdaea 100644 (file)
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
  */
-/*
- * Authors:
- *      Marek Olšák <maraeo@gmail.com>
- */
 
 #include "amdgpu_cs.h"
 #include "amdgpu_public.h"
 
+#include "util/u_cpu_detect.h"
 #include "util/u_hash_table.h"
+#include "util/hash_table.h"
+#include "util/xmlconfig.h"
 #include <amdgpu_drm.h>
 #include <xf86drm.h>
 #include <stdio.h>
 #include <sys/stat.h>
-#include "amd/common/amdgpu_id.h"
+#include <fcntl.h>
+#include "amd/common/ac_llvm_util.h"
 #include "amd/common/sid.h"
-#include "amd/common/gfx9d.h"
 
 #ifndef AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS
 #define AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS   0x1E
 #endif
 
 static struct util_hash_table *dev_tab = NULL;
-static mtx_t dev_tab_mutex = _MTX_INITIALIZER_NP;
+static simple_mtx_t dev_tab_mutex = _SIMPLE_MTX_INITIALIZER_NP;
+
+DEBUG_GET_ONCE_BOOL_OPTION(all_bos, "RADEON_ALL_BOS", false)
+
+static void handle_env_var_force_family(struct amdgpu_winsys *ws)
+{
+      const char *family = debug_get_option("SI_FORCE_FAMILY", NULL);
+      unsigned i;
+
+      if (!family)
+               return;
+
+      for (i = CHIP_TAHITI; i < CHIP_LAST; i++) {
+         if (!strcmp(family, ac_get_llvm_processor_name(i))) {
+            /* Override family and chip_class. */
+            ws->info.family = i;
+            ws->info.name = "GCN-NOOP";
+
+            if (i >= CHIP_NAVI10)
+               ws->info.chip_class = GFX10;
+            else if (i >= CHIP_VEGA10)
+               ws->info.chip_class = GFX9;
+            else if (i >= CHIP_TONGA)
+               ws->info.chip_class = GFX8;
+            else if (i >= CHIP_BONAIRE)
+               ws->info.chip_class = GFX7;
+            else
+               ws->info.chip_class = GFX6;
+
+            /* Don't submit any IBs. */
+            setenv("RADEON_NOOP", "1", 1);
+            return;
+         }
+      }
+
+      fprintf(stderr, "radeonsi: Unknown family: %s\n", family);
+      exit(1);
+}
 
 /* Helper function to do the ioctls needed for setup and init. */
-static bool do_winsys_init(struct amdgpu_winsys *ws, int fd)
+static bool do_winsys_init(struct amdgpu_winsys *ws,
+                           const struct pipe_screen_config *config,
+                           int fd)
 {
    if (!ac_query_gpu_info(fd, ws->dev, &ws->info, &ws->amdinfo))
       goto fail;
 
-   /* LLVM 5.0 is required for GFX9. */
-   if (ws->info.chip_class >= GFX9 && HAVE_LLVM < 0x0500) {
-      fprintf(stderr, "amdgpu: LLVM 5.0 is required, got LLVM %i.%i\n",
-              HAVE_LLVM >> 8, HAVE_LLVM & 255);
-      goto fail;
-   }
+   /* TODO: Enable this once the kernel handles it efficiently. */
+   if (ws->info.has_dedicated_vram)
+      ws->info.has_local_buffers = false;
+
+   handle_env_var_force_family(ws);
 
-   ws->addrlib = amdgpu_addr_create(&ws->info, &ws->amdinfo);
+   ws->addrlib = amdgpu_addr_create(&ws->info, &ws->amdinfo, &ws->info.max_alignment);
    if (!ws->addrlib) {
       fprintf(stderr, "amdgpu: Cannot create addrlib.\n");
       goto fail;
    }
 
-   ws->check_vm = strstr(debug_get_option("R600_DEBUG", ""), "check_vm") != NULL;
+   ws->check_vm = strstr(debug_get_option("R600_DEBUG", ""), "check_vm") != NULL ||
+                  strstr(debug_get_option("AMD_DEBUG", ""), "check_vm") != NULL;
+   ws->debug_all_bos = debug_get_option_all_bos();
+   ws->reserve_vmid = strstr(debug_get_option("R600_DEBUG", ""), "reserve_vmid") != NULL ||
+                      strstr(debug_get_option("AMD_DEBUG", ""), "reserve_vmid") != NULL;
+   ws->zero_all_vram_allocs = strstr(debug_get_option("R600_DEBUG", ""), "zerovram") != NULL ||
+                              strstr(debug_get_option("AMD_DEBUG", ""), "zerovram") != NULL ||
+                              driQueryOptionb(config->options, "radeonsi_zerovram");
 
    return true;
 
@@ -81,32 +125,66 @@ fail:
 
 static void do_winsys_deinit(struct amdgpu_winsys *ws)
 {
+   if (ws->reserve_vmid)
+      amdgpu_vm_unreserve_vmid(ws->dev, 0);
+
+   if (util_queue_is_initialized(&ws->cs_queue))
+      util_queue_destroy(&ws->cs_queue);
+
+   simple_mtx_destroy(&ws->bo_fence_lock);
+   for (unsigned i = 0; i < NUM_SLAB_ALLOCATORS; i++) {
+      if (ws->bo_slabs[i].groups)
+         pb_slabs_deinit(&ws->bo_slabs[i]);
+   }
+   pb_cache_deinit(&ws->bo_cache);
+   util_hash_table_destroy(ws->bo_export_table);
+   simple_mtx_destroy(&ws->global_bo_list_lock);
+   simple_mtx_destroy(&ws->bo_export_table_lock);
+
    AddrDestroy(ws->addrlib);
    amdgpu_device_deinitialize(ws->dev);
+   FREE(ws);
 }
 
 static void amdgpu_winsys_destroy(struct radeon_winsys *rws)
 {
-   struct amdgpu_winsys *ws = (struct amdgpu_winsys*)rws;
+   struct amdgpu_screen_winsys *sws = amdgpu_screen_winsys(rws);
+   struct amdgpu_winsys *ws = sws->aws;
+   bool destroy;
 
-   if (util_queue_is_initialized(&ws->cs_queue))
-      util_queue_destroy(&ws->cs_queue);
+   /* When the reference counter drops to zero, remove the device pointer
+    * from the table.
+    * This must happen while the mutex is locked, so that
+    * amdgpu_winsys_create in another thread doesn't get the winsys
+    * from the table when the counter drops to 0.
+    */
+   simple_mtx_lock(&dev_tab_mutex);
 
-   mtx_destroy(&ws->bo_fence_lock);
-   pb_slabs_deinit(&ws->bo_slabs);
-   pb_cache_deinit(&ws->bo_cache);
-   mtx_destroy(&ws->global_bo_list_lock);
-   do_winsys_deinit(ws);
+   destroy = pipe_reference(&ws->reference, NULL);
+   if (destroy && dev_tab) {
+      util_hash_table_remove(dev_tab, ws->dev);
+      if (util_hash_table_count(dev_tab) == 0) {
+         util_hash_table_destroy(dev_tab);
+         dev_tab = NULL;
+      }
+   }
+
+   simple_mtx_unlock(&dev_tab_mutex);
+
+   if (destroy)
+      do_winsys_deinit(ws);
+
+   close(sws->fd);
    FREE(rws);
 }
 
 static void amdgpu_winsys_query_info(struct radeon_winsys *rws,
                                      struct radeon_info *info)
 {
-   *info = ((struct amdgpu_winsys *)rws)->info;
+   *info = amdgpu_winsys(rws)->info;
 }
 
-static bool amdgpu_cs_request_feature(struct radeon_winsys_cs *rcs,
+static bool amdgpu_cs_request_feature(struct radeon_cmdbuf *rcs,
                                       enum radeon_feature_id fid,
                                       bool enable)
 {
@@ -116,7 +194,7 @@ static bool amdgpu_cs_request_feature(struct radeon_winsys_cs *rcs,
 static uint64_t amdgpu_query_value(struct radeon_winsys *rws,
                                    enum radeon_value_id value)
 {
-   struct amdgpu_winsys *ws = (struct amdgpu_winsys*)rws;
+   struct amdgpu_winsys *ws = amdgpu_winsys(rws);
    struct amdgpu_heap_info heap;
    uint64_t retval = 0;
 
@@ -140,6 +218,10 @@ static uint64_t amdgpu_query_value(struct radeon_winsys *rws,
       return ws->num_gfx_IBs;
    case RADEON_NUM_SDMA_IBS:
       return ws->num_sdma_IBs;
+   case RADEON_GFX_BO_LIST_COUNTER:
+      return ws->gfx_bo_list_counter;
+   case RADEON_GFX_IB_SIZE_COUNTER:
+      return ws->gfx_ib_size_counter;
    case RADEON_NUM_BYTES_MOVED:
       amdgpu_query_info(ws->dev, AMDGPU_INFO_NUM_BYTES_MOVED, 8, &retval);
       return retval;
@@ -168,9 +250,6 @@ static uint64_t amdgpu_query_value(struct radeon_winsys *rws,
    case RADEON_CURRENT_MCLK:
       amdgpu_query_sensor_info(ws->dev, AMDGPU_INFO_SENSOR_GFX_MCLK, 4, &retval);
       return retval;
-   case RADEON_GPU_RESET_COUNTER:
-      assert(0);
-      return 0;
    case RADEON_CS_THREAD_TIME:
       return util_queue_get_thread_time_nano(&ws->cs_queue, 0);
    }
@@ -181,120 +260,156 @@ static bool amdgpu_read_registers(struct radeon_winsys *rws,
                                   unsigned reg_offset,
                                   unsigned num_registers, uint32_t *out)
 {
-   struct amdgpu_winsys *ws = (struct amdgpu_winsys*)rws;
+   struct amdgpu_winsys *ws = amdgpu_winsys(rws);
 
    return amdgpu_read_mm_registers(ws->dev, reg_offset / 4, num_registers,
                                    0xffffffff, 0, out) == 0;
 }
 
-static unsigned hash_dev(void *key)
+static unsigned hash_pointer(void *key)
 {
-#if defined(PIPE_ARCH_X86_64)
-   return pointer_to_intptr(key) ^ (pointer_to_intptr(key) >> 32);
-#else
-   return pointer_to_intptr(key);
-#endif
+   return _mesa_hash_pointer(key);
 }
 
-static int compare_dev(void *key1, void *key2)
+static int compare_pointers(void *key1, void *key2)
 {
    return key1 != key2;
 }
 
 static bool amdgpu_winsys_unref(struct radeon_winsys *rws)
 {
-   struct amdgpu_winsys *ws = (struct amdgpu_winsys*)rws;
-   bool destroy;
-
-   /* When the reference counter drops to zero, remove the device pointer
-    * from the table.
-    * This must happen while the mutex is locked, so that
-    * amdgpu_winsys_create in another thread doesn't get the winsys
-    * from the table when the counter drops to 0. */
-   mtx_lock(&dev_tab_mutex);
-
-   destroy = pipe_reference(&ws->reference, NULL);
-   if (destroy && dev_tab)
-      util_hash_table_remove(dev_tab, ws->dev);
-
-   mtx_unlock(&dev_tab_mutex);
-   return destroy;
+   /* radeon_winsys corresponds to amdgpu_screen_winsys, which is never
+    * referenced multiple times, so amdgpu_winsys_destroy always needs to be
+    * called. It handles reference counting for amdgpu_winsys.
+    */
+   return true;
 }
 
-static const char* amdgpu_get_chip_name(struct radeon_winsys *ws)
+static void amdgpu_pin_threads_to_L3_cache(struct radeon_winsys *rws,
+                                           unsigned cache)
 {
-   amdgpu_device_handle dev = ((struct amdgpu_winsys *)ws)->dev;
-   return amdgpu_get_marketing_name(dev);
-}
+   struct amdgpu_winsys *ws = amdgpu_winsys(rws);
 
+   util_pin_thread_to_L3(ws->cs_queue.threads[0], cache,
+                         util_cpu_caps.cores_per_L3);
+}
 
 PUBLIC struct radeon_winsys *
-amdgpu_winsys_create(int fd, radeon_screen_create_t screen_create)
+amdgpu_winsys_create(int fd, const struct pipe_screen_config *config,
+                    radeon_screen_create_t screen_create)
 {
-   struct amdgpu_winsys *ws;
-   drmVersionPtr version = drmGetVersion(fd);
+   struct amdgpu_screen_winsys *ws;
+   struct amdgpu_winsys *aws;
    amdgpu_device_handle dev;
    uint32_t drm_major, drm_minor, r;
 
-   /* The DRM driver version of amdgpu is 3.x.x. */
-   if (version->version_major != 3) {
-      drmFreeVersion(version);
+   ws = CALLOC_STRUCT(amdgpu_screen_winsys);
+   if (!ws)
       return NULL;
-   }
-   drmFreeVersion(version);
+
+   ws->fd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
 
    /* Look up the winsys from the dev table. */
-   mtx_lock(&dev_tab_mutex);
+   simple_mtx_lock(&dev_tab_mutex);
    if (!dev_tab)
-      dev_tab = util_hash_table_create(hash_dev, compare_dev);
+      dev_tab = util_hash_table_create(hash_pointer, compare_pointers);
 
    /* Initialize the amdgpu device. This should always return the same pointer
     * for the same fd. */
    r = amdgpu_device_initialize(fd, &drm_major, &drm_minor, &dev);
    if (r) {
-      mtx_unlock(&dev_tab_mutex);
       fprintf(stderr, "amdgpu: amdgpu_device_initialize failed.\n");
-      return NULL;
+      goto fail;
    }
 
    /* Lookup a winsys if we have already created one for this device. */
-   ws = util_hash_table_get(dev_tab, dev);
-   if (ws) {
-      pipe_reference(NULL, &ws->reference);
-      mtx_unlock(&dev_tab_mutex);
-      return &ws->base;
+   aws = util_hash_table_get(dev_tab, dev);
+   if (aws) {
+      pipe_reference(NULL, &aws->reference);
+      simple_mtx_unlock(&dev_tab_mutex);
+
+      /* Release the device handle, because we don't need it anymore.
+       * This function is returning an existing winsys instance, which
+       * has its own device handle.
+       */
+      amdgpu_device_deinitialize(dev);
+   } else {
+      /* Create a new winsys. */
+      aws = CALLOC_STRUCT(amdgpu_winsys);
+      if (!aws)
+         goto fail;
+
+      aws->dev = dev;
+      aws->info.drm_major = drm_major;
+      aws->info.drm_minor = drm_minor;
+
+      if (!do_winsys_init(aws, config, fd))
+         goto fail_alloc;
+
+      /* Create managers. */
+      pb_cache_init(&aws->bo_cache, RADEON_MAX_CACHED_HEAPS,
+                    500000, aws->check_vm ? 1.0f : 2.0f, 0,
+                    (aws->info.vram_size + aws->info.gart_size) / 8,
+                    amdgpu_bo_destroy, amdgpu_bo_can_reclaim);
+
+      unsigned min_slab_order = 9;  /* 512 bytes */
+      unsigned max_slab_order = 18; /* 256 KB - higher numbers increase memory usage */
+      unsigned num_slab_orders_per_allocator = (max_slab_order - min_slab_order) /
+                                               NUM_SLAB_ALLOCATORS;
+
+      /* Divide the size order range among slab managers. */
+      for (unsigned i = 0; i < NUM_SLAB_ALLOCATORS; i++) {
+         unsigned min_order = min_slab_order;
+         unsigned max_order = MIN2(min_order + num_slab_orders_per_allocator,
+                                   max_slab_order);
+
+         if (!pb_slabs_init(&aws->bo_slabs[i],
+                            min_order, max_order,
+                            RADEON_MAX_SLAB_HEAPS,
+                            aws,
+                            amdgpu_bo_can_reclaim_slab,
+                            amdgpu_bo_slab_alloc,
+                            amdgpu_bo_slab_free)) {
+            amdgpu_winsys_destroy(&ws->base);
+            simple_mtx_unlock(&dev_tab_mutex);
+            return NULL;
+         }
+
+         min_slab_order = max_order + 1;
+      }
+
+      aws->info.min_alloc_size = 1 << aws->bo_slabs[0].min_order;
+
+      /* init reference */
+      pipe_reference_init(&aws->reference, 1);
+
+      LIST_INITHEAD(&aws->global_bo_list);
+      aws->bo_export_table = util_hash_table_create(hash_pointer, compare_pointers);
+
+      (void) simple_mtx_init(&aws->global_bo_list_lock, mtx_plain);
+      (void) simple_mtx_init(&aws->bo_fence_lock, mtx_plain);
+      (void) simple_mtx_init(&aws->bo_export_table_lock, mtx_plain);
+
+      if (!util_queue_init(&aws->cs_queue, "cs", 8, 1,
+                           UTIL_QUEUE_INIT_RESIZE_IF_FULL)) {
+         amdgpu_winsys_destroy(&ws->base);
+         simple_mtx_unlock(&dev_tab_mutex);
+         return NULL;
+      }
+
+      util_hash_table_set(dev_tab, dev, aws);
+
+      if (aws->reserve_vmid) {
+         r = amdgpu_vm_reserve_vmid(dev, 0);
+         if (r) {
+            amdgpu_winsys_destroy(&ws->base);
+            simple_mtx_unlock(&dev_tab_mutex);
+            return NULL;
+         }
+      }
    }
 
-   /* Create a new winsys. */
-   ws = CALLOC_STRUCT(amdgpu_winsys);
-   if (!ws)
-      goto fail;
-
-   ws->dev = dev;
-   ws->info.drm_major = drm_major;
-   ws->info.drm_minor = drm_minor;
-
-   if (!do_winsys_init(ws, fd))
-      goto fail_alloc;
-
-   /* Create managers. */
-   pb_cache_init(&ws->bo_cache, 500000, ws->check_vm ? 1.0f : 2.0f, 0,
-                 (ws->info.vram_size + ws->info.gart_size) / 8,
-                 amdgpu_bo_destroy, amdgpu_bo_can_reclaim);
-
-   if (!pb_slabs_init(&ws->bo_slabs,
-                      AMDGPU_SLAB_MIN_SIZE_LOG2, AMDGPU_SLAB_MAX_SIZE_LOG2,
-                      12, /* number of heaps (domain/flags combinations) */
-                      ws,
-                      amdgpu_bo_can_reclaim_slab,
-                      amdgpu_bo_slab_alloc,
-                      amdgpu_bo_slab_free))
-      goto fail_cache;
-
-   ws->info.min_alloc_size = 1 << AMDGPU_SLAB_MIN_SIZE_LOG2;
-
-   /* init reference */
-   pipe_reference_init(&ws->reference, 1);
+   ws->aws = aws;
 
    /* Set functions. */
    ws->base.unref = amdgpu_winsys_unref;
@@ -303,49 +418,36 @@ amdgpu_winsys_create(int fd, radeon_screen_create_t screen_create)
    ws->base.cs_request_feature = amdgpu_cs_request_feature;
    ws->base.query_value = amdgpu_query_value;
    ws->base.read_registers = amdgpu_read_registers;
-   ws->base.get_chip_name = amdgpu_get_chip_name;
+   ws->base.pin_threads_to_L3_cache = amdgpu_pin_threads_to_L3_cache;
 
    amdgpu_bo_init_functions(ws);
    amdgpu_cs_init_functions(ws);
    amdgpu_surface_init_functions(ws);
 
-   LIST_INITHEAD(&ws->global_bo_list);
-   (void) mtx_init(&ws->global_bo_list_lock, mtx_plain);
-   (void) mtx_init(&ws->bo_fence_lock, mtx_plain);
-
-   if (!util_queue_init(&ws->cs_queue, "amdgpu_cs", 8, 1, 0)) {
-      amdgpu_winsys_destroy(&ws->base);
-      mtx_unlock(&dev_tab_mutex);
-      return NULL;
-   }
-
    /* 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);
+   ws->base.screen = screen_create(&ws->base, config);
    if (!ws->base.screen) {
       amdgpu_winsys_destroy(&ws->base);
-      mtx_unlock(&dev_tab_mutex);
+      simple_mtx_unlock(&dev_tab_mutex);
       return NULL;
    }
 
-   util_hash_table_set(dev_tab, dev, 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(&dev_tab_mutex);
+   simple_mtx_unlock(&dev_tab_mutex);
 
    return &ws->base;
 
-fail_cache:
-   pb_cache_deinit(&ws->bo_cache);
-   do_winsys_deinit(ws);
 fail_alloc:
-   FREE(ws);
+   FREE(aws);
 fail:
-   mtx_unlock(&dev_tab_mutex);
+   close(ws->fd);
+   FREE(ws);
+   simple_mtx_unlock(&dev_tab_mutex);
    return NULL;
 }