struct pipe_screen *
ilo_screen_create(struct intel_winsys *ws)
{
struct ilo_screen *is;
const struct intel_winsys_info *info;
ilo_debug = debug_get_flags_option("ILO_DEBUG", ilo_debug_flags, 0);
is = CALLOC_STRUCT(ilo_screen);
if (!is)
return NULL;
is->winsys = ws;
intel_winsys_enable_reuse(is->winsys);
info = intel_winsys_get_info(is->winsys);
if (!init_dev(&is->dev, info)) {
FREE(is);
return NULL;
}
util_format_s3tc_init();
is->base.destroy = ilo_screen_destroy;
is->base.get_name = ilo_get_name;
is->base.get_vendor = ilo_get_vendor;
is->base.get_param = ilo_get_param;
is->base.get_paramf = ilo_get_paramf;
is->base.get_shader_param = ilo_get_shader_param;
is->base.get_video_param = ilo_get_video_param;
is->base.get_compute_param = ilo_get_compute_param;
is->base.get_timestamp = ilo_get_timestamp;
is->base.flush_frontbuffer = NULL;
is->base.fence_reference = ilo_fence_reference;
is->base.fence_signalled = ilo_fence_signalled;
is->base.fence_finish = ilo_fence_finish;
is->base.get_driver_query_info = NULL;
ilo_init_format_functions(is);
ilo_init_context_functions(is);
ilo_init_resource_functions(is);
return &is->base;
}
/**
* Initialize the \p dev from \p winsys.
*/
bool
ilo_dev_init(struct ilo_dev *dev, struct intel_winsys *winsys)
{
const struct intel_winsys_info *info;
assert(ilo_is_zeroed(dev, sizeof(*dev)));
info = intel_winsys_get_info(winsys);
dev->winsys = winsys;
dev->devid = info->devid;
dev->aperture_total = info->aperture_total;
dev->aperture_mappable = info->aperture_mappable;
dev->has_llc = info->has_llc;
dev->has_address_swizzling = info->has_address_swizzling;
dev->has_logical_context = info->has_logical_context;
dev->has_ppgtt = info->has_ppgtt;
dev->has_timestamp = info->has_timestamp;
dev->has_gen7_sol_reset = info->has_gen7_sol_reset;
if (!dev->has_logical_context) {
ilo_err("missing hardware logical context support\n");
return false;
}
/*
* PIPE_CONTROL and MI_* use PPGTT writes on GEN7+ and privileged GGTT
* writes on GEN6.
*
* From the Sandy Bridge PRM, volume 1 part 3, page 101:
*
* "[DevSNB] When Per-Process GTT Enable is set, it is assumed that all
* code is in a secure environment, independent of address space.
* Under this condition, this bit only specifies the address space
* (GGTT or PPGTT). All commands are executed "as-is""
*
* We need PPGTT to be enabled on GEN6 too.
*/
if (!dev->has_ppgtt) {
/* experiments show that it does not really matter... */
ilo_warn("PPGTT disabled\n");
}
if (gen_is_bdw(info->devid) || gen_is_chv(info->devid)) {
dev->gen_opaque = ILO_GEN(8);
dev->gt = (gen_is_bdw(info->devid)) ? gen_get_bdw_gt(info->devid) : 1;
/* XXX random values */
if (dev->gt == 3) {
dev->eu_count = 48;
dev->thread_count = 336;
dev->urb_size = 384 * 1024;
} else if (dev->gt == 2) {
dev->eu_count = 24;
dev->thread_count = 168;
dev->urb_size = 384 * 1024;
} else {
dev->eu_count = 12;
dev->thread_count = 84;
dev->urb_size = 192 * 1024;
}
} else if (gen_is_hsw(info->devid)) {
/*
* From the Haswell PRM, volume 4, page 8:
*
* "Description GT3 GT2 GT1.5 GT1
* (...)
* EUs (Total) 40 20 12 10
* Threads (Total) 280 140 84 70
* (...)
* URB Size (max, within L3$) 512KB 256KB 256KB 128KB
*/
dev->gen_opaque = ILO_GEN(7.5);
dev->gt = gen_get_hsw_gt(info->devid);
if (dev->gt == 3) {
dev->eu_count = 40;
dev->thread_count = 280;
dev->urb_size = 512 * 1024;
} else if (dev->gt == 2) {
dev->eu_count = 20;
dev->thread_count = 140;
dev->urb_size = 256 * 1024;
} else {
dev->eu_count = 10;
dev->thread_count = 70;
dev->urb_size = 128 * 1024;
}
} else if (gen_is_ivb(info->devid) || gen_is_vlv(info->devid)) {
/*
* From the Ivy Bridge PRM, volume 1 part 1, page 18:
*
* "Device # of EUs #Threads/EU
* Ivy Bridge (GT2) 16 8
* Ivy Bridge (GT1) 6 6"
*
* From the Ivy Bridge PRM, volume 4 part 2, page 17:
*
* "URB Size URB Rows URB Rows when SLM Enabled
* 128k 4096 2048
* 256k 8096 4096"
*/
dev->gen_opaque = ILO_GEN(7);
dev->gt = (gen_is_ivb(info->devid)) ? gen_get_ivb_gt(info->devid) : 1;
if (dev->gt == 2) {
dev->eu_count = 16;
dev->thread_count = 128;
dev->urb_size = 256 * 1024;
} else {
dev->eu_count = 6;
dev->thread_count = 36;
dev->urb_size = 128 * 1024;
}
} else if (gen_is_snb(info->devid)) {
/*
* From the Sandy Bridge PRM, volume 1 part 1, page 22:
*
* "Device # of EUs #Threads/EU
* SNB GT2 12 5
* SNB GT1 6 4"
*
* From the Sandy Bridge PRM, volume 4 part 2, page 18:
*
* "[DevSNB]: The GT1 product's URB provides 32KB of storage,
* arranged as 1024 256-bit rows. The GT2 product's URB provides
* 64KB of storage, arranged as 2048 256-bit rows. A row
* corresponds in size to an EU GRF register. Read/write access to
* the URB is generally supported on a row-granular basis."
*/
dev->gen_opaque = ILO_GEN(6);
dev->gt = gen_get_snb_gt(info->devid);
if (dev->gt == 2) {
dev->eu_count = 12;
dev->thread_count = 60;
dev->urb_size = 64 * 1024;
} else {
dev->eu_count = 6;
dev->thread_count = 24;
dev->urb_size = 32 * 1024;
}
} else {
ilo_err("unknown GPU generation\n");
return false;
}
return true;
}
