iris: Bypass half-float pack/unpack lowering.
[mesa.git] / src / gallium / drivers / iris / iris_screen.c
index 9e1147ffc80213cc81becfbd391717d87b34d071..83f5208e65e3c152b02f49a1ebd546faf55930a5 100644 (file)
 #include "util/debug.h"
 #include "util/u_inlines.h"
 #include "util/u_format.h"
+#include "util/u_transfer_helper.h"
 #include "util/u_upload_mgr.h"
 #include "util/ralloc.h"
+#include "util/xmlconfig.h"
 #include "drm-uapi/i915_drm.h"
 #include "iris_context.h"
 #include "iris_defines.h"
@@ -62,7 +64,7 @@ iris_flush_frontbuffer(struct pipe_screen *_screen,
 static const char *
 iris_get_vendor(struct pipe_screen *pscreen)
 {
-   return "Mesa Project";
+   return "Intel";
 }
 
 static const char *
@@ -75,6 +77,7 @@ static const char *
 iris_get_name(struct pipe_screen *pscreen)
 {
    struct iris_screen *screen = (struct iris_screen *)pscreen;
+   static char buf[128];
    const char *chipset;
 
    switch (screen->pci_id) {
@@ -85,7 +88,17 @@ iris_get_name(struct pipe_screen *pscreen)
       chipset = "Unknown Intel Chipset";
       break;
    }
-   return &chipset[9];
+
+   snprintf(buf, sizeof(buf), "Mesa %s", chipset);
+   return buf;
+}
+
+static uint64_t
+get_aperture_size(int fd)
+{
+   struct drm_i915_gem_get_aperture aperture = {};
+   drm_ioctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
+   return aperture.aper_size;
 }
 
 static int
@@ -126,16 +139,19 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_TEXTURE_MULTISAMPLE:
    case PIPE_CAP_CUBE_MAP_ARRAY:
    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
-   case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
+   case PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE:
    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
    case PIPE_CAP_TEXTURE_QUERY_LOD:
    case PIPE_CAP_SAMPLE_SHADING:
    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
    case PIPE_CAP_DRAW_INDIRECT:
+   case PIPE_CAP_MULTI_DRAW_INDIRECT:
+   case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
+   case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
    case PIPE_CAP_ACCELERATED:
    case PIPE_CAP_UMA:
    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
@@ -145,9 +161,9 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_DOUBLES:
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD:
-   case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
    case PIPE_CAP_SAMPLER_VIEW_TARGET:
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+   case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    case PIPE_CAP_CULL_DISTANCE:
@@ -156,12 +172,10 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
-   case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_QUERY_BUFFER_OBJECT:
    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    case PIPE_CAP_TGSI_TXQS:
-   case PIPE_CAP_TGSI_FS_FBFETCH:
    case PIPE_CAP_TGSI_CLOCK:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
@@ -171,17 +185,32 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_TEXTURE_GATHER_SM5:
    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
    case PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS:
-   case PIPE_CAP_SHADER_STENCIL_EXPORT:
    case PIPE_CAP_LOAD_CONSTBUF:
+   case PIPE_CAP_NIR_COMPACT_ARRAYS:
+   case PIPE_CAP_DRAW_PARAMETERS:
+   case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
+   case PIPE_CAP_COMPUTE_SHADER_DERIVATIVES:
+   case PIPE_CAP_INVALIDATE_BUFFER:
+   case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
       return true;
-
+   case PIPE_CAP_FBFETCH:
+      /* TODO: Support non-coherent FB fetch on Broadwell */
+      return devinfo->gen >= 9 ? BRW_MAX_DRAW_BUFFERS : 0;
+   case PIPE_CAP_FBFETCH_COHERENT:
+   case PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE:
+   case PIPE_CAP_POST_DEPTH_COVERAGE:
+   case PIPE_CAP_SHADER_STENCIL_EXPORT:
+   case PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE:
+   case PIPE_CAP_FRAGMENT_SHADER_INTERLOCK:
+      return devinfo->gen >= 9;
    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
       return 1;
    case PIPE_CAP_MAX_RENDER_TARGETS:
       return BRW_MAX_DRAW_BUFFERS;
-   case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
+   case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
+      return 16384;
    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
-      return 15; /* 16384x16384 */
+      return IRIS_MAX_MIPLEVELS; /* 16384x16384 */
    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
       return 12; /* 2048x2048 */
    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
@@ -199,6 +228,8 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
       /* 3DSTATE_CONSTANT_XS requires the start of UBOs to be 32B aligned */
       return 32;
+   case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
+      return IRIS_MAP_BUFFER_ALIGNMENT;
    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
       /* Choose a cacheline (64 bytes) so that we can safely have the CPU and
        * GPU writing the same SSBO on non-coherent systems (Atom CPUs).  With
@@ -236,9 +267,30 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
       return 0x8086;
    case PIPE_CAP_DEVICE_ID:
       return screen->pci_id;
-   case PIPE_CAP_VIDEO_MEMORY:
-      return 0xffffffff; // XXX: bogus
+   case PIPE_CAP_VIDEO_MEMORY: {
+      /* Once a batch uses more than 75% of the maximum mappable size, we
+       * assume that there's some fragmentation, and we start doing extra
+       * flushing, etc.  That's the big cliff apps will care about.
+       */
+      const unsigned gpu_mappable_megabytes =
+         (screen->aperture_bytes * 3 / 4) / (1024 * 1024);
+
+      const long system_memory_pages = sysconf(_SC_PHYS_PAGES);
+      const long system_page_size = sysconf(_SC_PAGE_SIZE);
+
+      if (system_memory_pages <= 0 || system_page_size <= 0)
+         return -1;
+
+      const uint64_t system_memory_bytes =
+         (uint64_t) system_memory_pages * (uint64_t) system_page_size;
+
+      const unsigned system_memory_megabytes =
+         (unsigned) (system_memory_bytes / (1024 * 1024));
+
+      return MIN2(system_memory_megabytes, gpu_mappable_megabytes);
+   }
    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
+   case PIPE_CAP_MAX_VARYINGS:
       return 32;
    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
       /* AMD_pinned_memory assumes the flexibility of using client memory
@@ -250,6 +302,11 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
        */
       return devinfo->has_llc;
 
+   case PIPE_CAP_CONTEXT_PRIORITY_MASK:
+      return PIPE_CONTEXT_PRIORITY_LOW |
+             PIPE_CONTEXT_PRIORITY_MEDIUM |
+             PIPE_CONTEXT_PRIORITY_HIGH;
+
    // XXX: don't hardcode 00:00:02.0 PCI here
    case PIPE_CAP_PCI_GROUP:
       return 0;
@@ -296,8 +353,6 @@ iris_get_shader_param(struct pipe_screen *pscreen,
                       enum pipe_shader_type p_stage,
                       enum pipe_shader_cap param)
 {
-   struct iris_screen *screen = (struct iris_screen *)pscreen;
-   struct brw_compiler *compiler = screen->compiler;
    gl_shader_stage stage = stage_from_pipe(p_stage);
 
    /* this is probably not totally correct.. but it's a start: */
@@ -356,11 +411,12 @@ iris_get_shader_param(struct pipe_screen *pscreen,
       return 1 << PIPE_SHADER_IR_NIR;
    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
       return 32;
+   case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+   case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
+      return 1;
    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
-   case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
-   case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
@@ -377,11 +433,8 @@ iris_get_compute_param(struct pipe_screen *pscreen,
                        void *ret)
 {
    struct iris_screen *screen = (struct iris_screen *)pscreen;
-   struct brw_compiler *compiler = screen->compiler;
    const struct gen_device_info *devinfo = &screen->devinfo;
 
-   // XXX: cherryview fusing
-
    const unsigned max_threads = MIN2(64, devinfo->max_cs_threads);
    const uint32_t max_invocations = 32 * max_threads;
 
@@ -459,6 +512,9 @@ iris_destroy_screen(struct pipe_screen *pscreen)
 {
    struct iris_screen *screen = (struct iris_screen *) pscreen;
    iris_bo_unreference(screen->workaround_bo);
+   u_transfer_helper_destroy(pscreen->transfer_helper);
+   iris_bufmgr_destroy(screen->bufmgr);
+   disk_cache_destroy(screen->disk_cache);
    ralloc_free(screen);
 }
 
@@ -480,6 +536,13 @@ iris_get_compiler_options(struct pipe_screen *pscreen,
    return screen->compiler->glsl_compiler_options[stage].NirOptions;
 }
 
+static struct disk_cache *
+iris_get_disk_shader_cache(struct pipe_screen *pscreen)
+{
+   struct iris_screen *screen = (struct iris_screen *) pscreen;
+   return screen->disk_cache;
+}
+
 static int
 iris_getparam(struct iris_screen *screen, int param, int *value)
 {
@@ -491,13 +554,6 @@ iris_getparam(struct iris_screen *screen, int param, int *value)
    return 0;
 }
 
-static bool
-iris_getparam_boolean(struct iris_screen *screen, int param)
-{
-   int value = 0;
-   return (iris_getparam(screen, param, &value) == 0) && value;
-}
-
 static int
 iris_getparam_integer(struct iris_screen *screen, int param)
 {
@@ -530,17 +586,24 @@ iris_shader_perf_log(void *data, const char *fmt, ...)
    struct pipe_debug_callback *dbg = data;
    unsigned id = 0;
    va_list args;
+   va_start(args, fmt);
 
-   if (!dbg->debug_message)
-      return;
+   if (unlikely(INTEL_DEBUG & DEBUG_PERF)) {
+      va_list args_copy;
+      va_copy(args_copy, args);
+      vfprintf(stderr, fmt, args_copy);
+      va_end(args_copy);
+   }
+
+   if (dbg->debug_message) {
+      dbg->debug_message(dbg->data, &id, PIPE_DEBUG_TYPE_PERF_INFO, fmt, args);
+   }
 
-   va_start(args, fmt);
-   dbg->debug_message(dbg->data, &id, PIPE_DEBUG_TYPE_PERF_INFO, fmt, args);
    va_end(args);
 }
 
 struct pipe_screen *
-iris_screen_create(int fd)
+iris_screen_create(int fd, const struct pipe_screen_config *config)
 {
    struct iris_screen *screen = rzalloc(NULL, struct iris_screen);
    if (!screen)
@@ -552,9 +615,17 @@ iris_screen_create(int fd)
    if (!gen_get_device_info(screen->pci_id, &screen->devinfo))
       return NULL;
 
+   if (screen->devinfo.gen < 8 || screen->devinfo.is_cherryview)
+      return NULL;
+
    screen->devinfo.timestamp_frequency =
       iris_getparam_integer(screen, I915_PARAM_CS_TIMESTAMP_FREQUENCY);
 
+   screen->aperture_bytes = get_aperture_size(fd);
+
+   if (getenv("INTEL_NO_HW") != NULL)
+      screen->no_hw = true;
+
    screen->bufmgr = iris_bufmgr_init(&screen->devinfo, fd);
    if (!screen->bufmgr)
       return NULL;
@@ -566,15 +637,20 @@ iris_screen_create(int fd)
 
    brw_process_intel_debug_variable();
 
+   screen->driconf.dual_color_blend_by_location =
+      driQueryOptionb(config->options, "dual_color_blend_by_location");
+
    screen->precompile = env_var_as_boolean("shader_precompile", true);
 
-   bool hw_has_swizzling = false; // XXX: detect?
-   isl_device_init(&screen->isl_dev, &screen->devinfo, hw_has_swizzling);
+   isl_device_init(&screen->isl_dev, &screen->devinfo, false);
 
    screen->compiler = brw_compiler_create(screen, &screen->devinfo);
    screen->compiler->shader_debug_log = iris_shader_debug_log;
    screen->compiler->shader_perf_log = iris_shader_perf_log;
    screen->compiler->supports_pull_constants = false;
+   screen->compiler->supports_shader_constants = true;
+
+   iris_disk_cache_init(screen);
 
    slab_create_parent(&screen->transfer_pool,
                       sizeof(struct iris_transfer), 64);
@@ -597,6 +673,7 @@ iris_screen_create(int fd)
    pscreen->get_compute_param = iris_get_compute_param;
    pscreen->get_paramf = iris_get_paramf;
    pscreen->get_compiler_options = iris_get_compiler_options;
+   pscreen->get_disk_shader_cache = iris_get_disk_shader_cache;
    pscreen->is_format_supported = iris_is_format_supported;
    pscreen->context_create = iris_create_context;
    pscreen->flush_frontbuffer = iris_flush_frontbuffer;