diff options
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/gk20a.c')
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/gk20a.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c index 39ff605b..5eab4ba0 100644 --- a/drivers/gpu/nvgpu/gk20a/gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/gk20a.c | |||
@@ -1585,65 +1585,6 @@ void gk20a_reset(struct gk20a *g, u32 units) | |||
1585 | gk20a_enable(g, units); | 1585 | gk20a_enable(g, units); |
1586 | } | 1586 | } |
1587 | 1587 | ||
1588 | static u32 gk20a_determine_L2_size_bytes(struct gk20a *g) | ||
1589 | { | ||
1590 | const u32 gpuid = GK20A_GPUID(g->gpu_characteristics.arch, | ||
1591 | g->gpu_characteristics.impl); | ||
1592 | u32 lts_per_ltc; | ||
1593 | u32 ways; | ||
1594 | u32 sets; | ||
1595 | u32 bytes_per_line; | ||
1596 | u32 active_ltcs; | ||
1597 | u32 cache_size; | ||
1598 | |||
1599 | u32 tmp; | ||
1600 | u32 active_sets_value; | ||
1601 | |||
1602 | tmp = gk20a_readl(g, ltc_ltc0_lts0_tstg_cfg1_r()); | ||
1603 | ways = hweight32(ltc_ltc0_lts0_tstg_cfg1_active_ways_v(tmp)); | ||
1604 | |||
1605 | active_sets_value = ltc_ltc0_lts0_tstg_cfg1_active_sets_v(tmp); | ||
1606 | if (active_sets_value == ltc_ltc0_lts0_tstg_cfg1_active_sets_all_v()) { | ||
1607 | sets = 64; | ||
1608 | } else if (active_sets_value == | ||
1609 | ltc_ltc0_lts0_tstg_cfg1_active_sets_half_v()) { | ||
1610 | sets = 32; | ||
1611 | } else if (active_sets_value == | ||
1612 | ltc_ltc0_lts0_tstg_cfg1_active_sets_quarter_v()) { | ||
1613 | sets = 16; | ||
1614 | } else { | ||
1615 | dev_err(dev_from_gk20a(g), | ||
1616 | "Unknown constant %u for active sets", | ||
1617 | (unsigned)active_sets_value); | ||
1618 | sets = 0; | ||
1619 | } | ||
1620 | |||
1621 | active_ltcs = g->gr.num_fbps; | ||
1622 | |||
1623 | /* chip-specific values */ | ||
1624 | switch (gpuid) { | ||
1625 | case GK20A_GPUID_GK20A: | ||
1626 | lts_per_ltc = 1; | ||
1627 | bytes_per_line = 128; | ||
1628 | break; | ||
1629 | |||
1630 | case GK20A_GPUID_GM20B: | ||
1631 | lts_per_ltc = 2; | ||
1632 | bytes_per_line = 128; | ||
1633 | break; | ||
1634 | |||
1635 | default: | ||
1636 | dev_err(dev_from_gk20a(g), "Unknown GPU id 0x%02x\n", | ||
1637 | (unsigned)gpuid); | ||
1638 | lts_per_ltc = 0; | ||
1639 | bytes_per_line = 0; | ||
1640 | } | ||
1641 | |||
1642 | cache_size = active_ltcs * lts_per_ltc * ways * sets * bytes_per_line; | ||
1643 | |||
1644 | return cache_size; | ||
1645 | } | ||
1646 | |||
1647 | int gk20a_init_gpu_characteristics(struct gk20a *g) | 1588 | int gk20a_init_gpu_characteristics(struct gk20a *g) |
1648 | { | 1589 | { |
1649 | struct nvhost_gpu_characteristics *gpu = &g->gpu_characteristics; | 1590 | struct nvhost_gpu_characteristics *gpu = &g->gpu_characteristics; |