Revert "ac, radeonsi: remove has_syncobj, has_fence_to_handle"

This reverts commit 02fe3c32cd.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11352
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29876>

src/amd/common/ac_gpu_info.c

@@ -355,6 +355,14 @@ static intptr_t readlink(const char *path, char *buf, size_t bufsiz)
 
 #define CIK_TILE_MODE_COLOR_2D 14
 
+static bool has_syncobj(int fd)
+{
+   uint64_t value;
+   if (drmGetCap(fd, DRM_CAP_SYNCOBJ, &value))
+      return false;
+   return value ? true : false;
+}
+
 static bool has_timeline_syncobj(int fd)
 {
    uint64_t value;
@@ -1069,7 +1077,9 @@ bool ac_query_gpu_info(int fd, void *dev_p, struct radeon_info *info,
    info->memory_freq_mhz_effective *= ac_memory_ops_per_clock(info->vram_type);
 
    info->has_userptr = true;
+   info->has_syncobj = has_syncobj(fd);
    info->has_timeline_syncobj = has_timeline_syncobj(fd);
+   info->has_fence_to_handle = info->has_syncobj;
    info->has_local_buffers = true;
    info->has_bo_metadata = true;
    info->has_eqaa_surface_allocator = info->gfx_level < GFX11;
@@ -1975,7 +1985,9 @@ void ac_print_gpu_info(const struct radeon_info *info, FILE *f)
    fprintf(f, "Kernel & winsys capabilities:\n");
    fprintf(f, "    drm = %i.%i.%i\n", info->drm_major, info->drm_minor, info->drm_patchlevel);
    fprintf(f, "    has_userptr = %i\n", info->has_userptr);
+   fprintf(f, "    has_syncobj = %u\n", info->has_syncobj);
    fprintf(f, "    has_timeline_syncobj = %u\n", info->has_timeline_syncobj);
+   fprintf(f, "    has_fence_to_handle = %u\n", info->has_fence_to_handle);
    fprintf(f, "    has_local_buffers = %u\n", info->has_local_buffers);
    fprintf(f, "    has_bo_metadata = %u\n", info->has_bo_metadata);
    fprintf(f, "    has_eqaa_surface_allocator = %u\n", info->has_eqaa_surface_allocator);

src/amd/common/ac_gpu_info.h

@@ -218,7 +218,9 @@ struct radeon_info {
    uint32_t max_submitted_ibs[AMD_NUM_IP_TYPES];
    bool is_amdgpu;
    bool has_userptr;
+   bool has_syncobj;
    bool has_timeline_syncobj;
+   bool has_fence_to_handle;
    bool has_local_buffers;
    bool has_bo_metadata;
    bool has_eqaa_surface_allocator;

src/gallium/drivers/r600/r600_pipe_common.c

@@ -1338,6 +1338,7 @@ bool r600_common_screen_init(struct r600_common_screen *rscreen,
 		printf("drm = %i.%i.%i\n", rscreen->info.drm_major,
 		       rscreen->info.drm_minor, rscreen->info.drm_patchlevel);
 		printf("has_userptr = %i\n", rscreen->info.has_userptr);
+		printf("has_syncobj = %u\n", rscreen->info.has_syncobj);
 
 		printf("r600_max_quad_pipes = %i\n", rscreen->info.r600_max_quad_pipes);
 		printf("max_gpu_freq_mhz = %i\n", rscreen->info.max_gpu_freq_mhz);

src/gallium/drivers/radeonsi/si_fence.c

@@ -374,10 +374,16 @@ static void si_create_fence_fd(struct pipe_context *ctx, struct pipe_fence_handl
 
    switch (type) {
    case PIPE_FD_TYPE_NATIVE_SYNC:
+      if (!sscreen->info.has_fence_to_handle)
+         goto finish;
+
       sfence->gfx = ws->fence_import_sync_file(ws, fd);
       break;
 
    case PIPE_FD_TYPE_SYNCOBJ:
+      if (!sscreen->info.has_syncobj)
+         goto finish;
+
       sfence->gfx = ws->fence_import_syncobj(ws, fd);
       break;
 
@@ -385,6 +391,7 @@ static void si_create_fence_fd(struct pipe_context *ctx, struct pipe_fence_handl
       unreachable("bad fence fd type when importing");
    }
 
+finish:
    if (!sfence->gfx) {
       FREE(sfence);
       return;
@@ -400,6 +407,9 @@ static int si_fence_get_fd(struct pipe_screen *screen, struct pipe_fence_handle
    struct si_fence *sfence = (struct si_fence *)fence;
    int gfx_fd = -1;
 
+   if (!sscreen->info.has_fence_to_handle)
+      return -1;
+
    util_queue_fence_wait(&sfence->ready);
 
    /* Deferred fences aren't supported. */

src/gallium/drivers/radeonsi/si_get.c

@@ -183,8 +183,6 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_ALLOW_GLTHREAD_BUFFER_SUBDATA_OPT: /* TODO: remove if it's slow */
    case PIPE_CAP_NULL_TEXTURES:
    case PIPE_CAP_HAS_CONST_BW:
-   case PIPE_CAP_FENCE_SIGNAL:
-   case PIPE_CAP_NATIVE_FENCE_FD:
    case PIPE_CAP_CL_GL_SHARING:
       return 1;
 
@@ -309,9 +307,15 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
              PIPE_CONTEXT_PRIORITY_MEDIUM |
              PIPE_CONTEXT_PRIORITY_HIGH;
 
+   case PIPE_CAP_FENCE_SIGNAL:
+      return sscreen->info.has_syncobj;
+
    case PIPE_CAP_CONSTBUF0_FLAGS:
       return SI_RESOURCE_FLAG_32BIT;
 
+   case PIPE_CAP_NATIVE_FENCE_FD:
+      return sscreen->info.has_fence_to_handle;
+
    case PIPE_CAP_DRAW_PARAMETERS:
    case PIPE_CAP_MULTI_DRAW_INDIRECT:
    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS: