C++ (Cpp) ltc_ltc0_lts0_tstg_cfg1_active_sets_half_v Examples

Example #1

File: ltc_common.c Project: FrozenCow/FIRE-ICE

static int gk20a_determine_L2_size_bytes(struct gk20a *g)
{
	const u32 gpuid = GK20A_GPUID(g->gpu_characteristics.arch,
				      g->gpu_characteristics.impl);
	u32 lts_per_ltc;
	u32 ways;
	u32 sets;
	u32 bytes_per_line;
	u32 active_ltcs;
	u32 cache_size;

	u32 tmp;
	u32 active_sets_value;

	tmp = gk20a_readl(g, ltc_ltc0_lts0_tstg_cfg1_r());
	ways = hweight32(ltc_ltc0_lts0_tstg_cfg1_active_ways_v(tmp));

	active_sets_value = ltc_ltc0_lts0_tstg_cfg1_active_sets_v(tmp);
	if (active_sets_value == ltc_ltc0_lts0_tstg_cfg1_active_sets_all_v()) {
		sets = 64;
	} else if (active_sets_value ==
		 ltc_ltc0_lts0_tstg_cfg1_active_sets_half_v()) {
		sets = 32;
	} else if (active_sets_value ==
		 ltc_ltc0_lts0_tstg_cfg1_active_sets_quarter_v()) {
		sets = 16;
	} else {
		dev_err(dev_from_gk20a(g),
			"Unknown constant %u for active sets",
		       (unsigned)active_sets_value);
		sets = 0;
	}

	active_ltcs = g->gr.num_fbps;

	/* chip-specific values */
	switch (gpuid) {
	case GK20A_GPUID_GK20A:
		lts_per_ltc = 1;
		bytes_per_line = 128;
		break;

	default:
		dev_err(dev_from_gk20a(g), "Unknown GPU id 0x%02x\n",
			(unsigned)gpuid);
		lts_per_ltc = 0;
		bytes_per_line = 0;
	}

	cache_size = active_ltcs * lts_per_ltc * ways * sets * bytes_per_line;

	return cache_size;
}

Example #2

File: ltc_gm20b.c Project: 1ee7/linux_l4t_tx1

static int gm20b_determine_L2_size_bytes(struct gk20a *g)
{
	u32 lts_per_ltc;
	u32 ways;
	u32 sets;
	u32 bytes_per_line;
	u32 active_ltcs;
	u32 cache_size;

	u32 tmp;
	u32 active_sets_value;

	tmp = gk20a_readl(g, ltc_ltc0_lts0_tstg_cfg1_r());
	ways = hweight32(ltc_ltc0_lts0_tstg_cfg1_active_ways_v(tmp));

	active_sets_value = ltc_ltc0_lts0_tstg_cfg1_active_sets_v(tmp);
	if (active_sets_value == ltc_ltc0_lts0_tstg_cfg1_active_sets_all_v()) {
		sets = 64;
	} else if (active_sets_value ==
		 ltc_ltc0_lts0_tstg_cfg1_active_sets_half_v()) {
		sets = 32;
	} else if (active_sets_value ==
		 ltc_ltc0_lts0_tstg_cfg1_active_sets_quarter_v()) {
		sets = 16;
	} else {
		dev_err(dev_from_gk20a(g),
			"Unknown constant %u for active sets",
		       (unsigned)active_sets_value);
		sets = 0;
	}

	active_ltcs = g->gr.num_fbps;

	/* chip-specific values */
	lts_per_ltc = 2;
	bytes_per_line = 128;
	cache_size = active_ltcs * lts_per_ltc * ways * sets * bytes_per_line;

	return cache_size;
}