diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/gr/gv100.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/gr/gv100.c | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gv100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gv100.c new file mode 100644 index 000000000..7f7404a76 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gv100.c @@ -0,0 +1,342 @@ +/* + * Copyright 2018 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "gf100.h" +#include "ctxgf100.h" + +#include <nvif/class.h> + +static void +gv100_gr_trap_sm(struct gf100_gr *gr, int gpc, int tpc, int sm) +{ + struct nvkm_subdev *subdev = &gr->base.engine.subdev; + struct nvkm_device *device = subdev->device; + u32 werr = nvkm_rd32(device, TPC_UNIT(gpc, tpc, 0x730 + (sm * 0x80))); + u32 gerr = nvkm_rd32(device, TPC_UNIT(gpc, tpc, 0x734 + (sm * 0x80))); + const struct nvkm_enum *warp; + char glob[128]; + + nvkm_snprintbf(glob, sizeof(glob), gf100_mp_global_error, gerr); + warp = nvkm_enum_find(gf100_mp_warp_error, werr & 0xffff); + + nvkm_error(subdev, "GPC%i/TPC%i/SM%d trap: " + "global %08x [%s] warp %04x [%s]\n", + gpc, tpc, sm, gerr, glob, werr, warp ? warp->name : ""); + + nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x730 + sm * 0x80), 0x00000000); + nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x734 + sm * 0x80), gerr); +} + +void +gv100_gr_trap_mp(struct gf100_gr *gr, int gpc, int tpc) +{ + gv100_gr_trap_sm(gr, gpc, tpc, 0); + gv100_gr_trap_sm(gr, gpc, tpc, 1); +} + +void +gv100_gr_init_4188a4(struct gf100_gr *gr) +{ + struct nvkm_device *device = gr->base.engine.subdev.device; + + nvkm_mask(device, 0x4188a4, 0x03000000, 0x03000000); +} + +void +gv100_gr_init_shader_exceptions(struct gf100_gr *gr, int gpc, int tpc) +{ + struct nvkm_device *device = gr->base.engine.subdev.device; + int sm; + for (sm = 0; sm < 0x100; sm += 0x80) { + nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x610), 0x00000001); + nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x72c + sm), 0x00000004); + } +} + +void +gv100_gr_init_504430(struct gf100_gr *gr, int gpc, int tpc) +{ + struct nvkm_device *device = gr->base.engine.subdev.device; + nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x430), 0x403f0000); +} + +void +gv100_gr_init_419bd8(struct gf100_gr *gr) +{ + struct nvkm_device *device = gr->base.engine.subdev.device; + nvkm_mask(device, 0x419bd8, 0x00000700, 0x00000000); +} + +u32 +gv100_gr_nonpes_aware_tpc(struct gf100_gr *gr, u32 gpc, u32 tpc) +{ + u32 pes, temp, tpc_new = 0; + + for (pes = 0; pes < gr->ppc_nr[gpc]; pes++) { + if (gr->ppc_tpc_mask[gpc][pes] & BIT(tpc)) + break; + + tpc_new += gr->ppc_tpc_nr[gpc][pes]; + } + + temp = (BIT(tpc) - 1) & gr->ppc_tpc_mask[gpc][pes]; + temp = hweight32(temp); + return tpc_new + temp; +} + +static int +gv100_gr_scg_estimate_perf(struct gf100_gr *gr, unsigned long *gpc_tpc_mask, + u32 disable_gpc, u32 disable_tpc, int *perf) +{ + const u32 scale_factor = 512UL; /* Use fx23.9 */ + const u32 pix_scale = 1024*1024UL; /* Pix perf in [29:20] */ + const u32 world_scale = 1024UL; /* World performance in [19:10] */ + const u32 tpc_scale = 1; /* TPC balancing in [9:0] */ + u32 scg_num_pes = 0; + u32 min_scg_gpc_pix_perf = scale_factor; /* Init perf as maximum */ + u32 average_tpcs = 0; /* Average of # of TPCs per GPC */ + u32 deviation; /* absolute diff between TPC# and average_tpcs, averaged across GPCs */ + u32 norm_tpc_deviation; /* deviation/max_tpc_per_gpc */ + u32 tpc_balance; + u32 scg_gpc_pix_perf; + u32 scg_world_perf; + u32 gpc; + u32 pes; + int diff; + bool tpc_removed_gpc = false; + bool tpc_removed_pes = false; + u32 max_tpc_gpc = 0; + u32 num_tpc_mask; + u32 *num_tpc_gpc; + int ret = -EINVAL; + + if (!(num_tpc_gpc = kcalloc(gr->gpc_nr, sizeof(*num_tpc_gpc), GFP_KERNEL))) + return -ENOMEM; + + /* Calculate pix-perf-reduction-rate per GPC and find bottleneck TPC */ + for (gpc = 0; gpc < gr->gpc_nr; gpc++) { + num_tpc_mask = gpc_tpc_mask[gpc]; + + if ((gpc == disable_gpc) && num_tpc_mask & BIT(disable_tpc)) { + /* Safety check if a TPC is removed twice */ + if (WARN_ON(tpc_removed_gpc)) + goto done; + + /* Remove logical TPC from set */ + num_tpc_mask &= ~BIT(disable_tpc); + tpc_removed_gpc = true; + } + + /* track balancing of tpcs across gpcs */ + num_tpc_gpc[gpc] = hweight32(num_tpc_mask); + average_tpcs += num_tpc_gpc[gpc]; + + /* save the maximum numer of gpcs */ + max_tpc_gpc = num_tpc_gpc[gpc] > max_tpc_gpc ? num_tpc_gpc[gpc] : max_tpc_gpc; + + /* + * Calculate ratio between TPC count and post-FS and post-SCG + * + * ratio represents relative throughput of the GPC + */ + scg_gpc_pix_perf = scale_factor * num_tpc_gpc[gpc] / gr->tpc_nr[gpc]; + if (min_scg_gpc_pix_perf > scg_gpc_pix_perf) + min_scg_gpc_pix_perf = scg_gpc_pix_perf; + + /* Calculate # of surviving PES */ + for (pes = 0; pes < gr->ppc_nr[gpc]; pes++) { + /* Count the number of TPC on the set */ + num_tpc_mask = gr->ppc_tpc_mask[gpc][pes] & gpc_tpc_mask[gpc]; + + if ((gpc == disable_gpc) && (num_tpc_mask & BIT(disable_tpc))) { + if (WARN_ON(tpc_removed_pes)) + goto done; + + num_tpc_mask &= ~BIT(disable_tpc); + tpc_removed_pes = true; + } + + if (hweight32(num_tpc_mask)) + scg_num_pes++; + } + } + + if (WARN_ON(!tpc_removed_gpc || !tpc_removed_pes)) + goto done; + + if (max_tpc_gpc == 0) { + *perf = 0; + goto done_ok; + } + + /* Now calculate perf */ + scg_world_perf = (scale_factor * scg_num_pes) / gr->ppc_total; + deviation = 0; + average_tpcs = scale_factor * average_tpcs / gr->gpc_nr; + for (gpc = 0; gpc < gr->gpc_nr; gpc++) { + diff = average_tpcs - scale_factor * num_tpc_gpc[gpc]; + if (diff < 0) + diff = -diff; + + deviation += diff; + } + + deviation /= gr->gpc_nr; + + norm_tpc_deviation = deviation / max_tpc_gpc; + + tpc_balance = scale_factor - norm_tpc_deviation; + + if ((tpc_balance > scale_factor) || + (scg_world_perf > scale_factor) || + (min_scg_gpc_pix_perf > scale_factor) || + (norm_tpc_deviation > scale_factor)) { + WARN_ON(1); + goto done; + } + + *perf = (pix_scale * min_scg_gpc_pix_perf) + + (world_scale * scg_world_perf) + + (tpc_scale * tpc_balance); +done_ok: + ret = 0; +done: + kfree(num_tpc_gpc); + return ret; +} + +int +gv100_gr_oneinit_sm_id(struct gf100_gr *gr) +{ + unsigned long *gpc_tpc_mask; + u32 *tpc_table, *gpc_table; + u32 gpc, tpc, pes, gtpc; + int perf, maxperf, ret = 0; + + gpc_tpc_mask = kcalloc(gr->gpc_nr, sizeof(*gpc_tpc_mask), GFP_KERNEL); + gpc_table = kcalloc(gr->tpc_total, sizeof(*gpc_table), GFP_KERNEL); + tpc_table = kcalloc(gr->tpc_total, sizeof(*tpc_table), GFP_KERNEL); + if (!gpc_table || !tpc_table || !gpc_tpc_mask) { + ret = -ENOMEM; + goto done; + } + + for (gpc = 0; gpc < gr->gpc_nr; gpc++) { + for (pes = 0; pes < gr->ppc_nr[gpc]; pes++) + gpc_tpc_mask[gpc] |= gr->ppc_tpc_mask[gpc][pes]; + } + + for (gtpc = 0; gtpc < gr->tpc_total; gtpc++) { + for (maxperf = -1, gpc = 0; gpc < gr->gpc_nr; gpc++) { + for_each_set_bit(tpc, &gpc_tpc_mask[gpc], gr->tpc_nr[gpc]) { + ret = gv100_gr_scg_estimate_perf(gr, gpc_tpc_mask, gpc, tpc, &perf); + if (ret) + goto done; + + /* nvgpu does ">=" here, but this gets us RM's numbers. */ + if (perf > maxperf) { + maxperf = perf; + gpc_table[gtpc] = gpc; + tpc_table[gtpc] = tpc; + } + } + } + + gpc_tpc_mask[gpc_table[gtpc]] &= ~BIT(tpc_table[gtpc]); + } + + /*TODO: build table for sm_per_tpc != 1, don't use yet, but might need later? */ + for (gtpc = 0; gtpc < gr->tpc_total; gtpc++) { + gr->sm[gtpc].gpc = gpc_table[gtpc]; + gr->sm[gtpc].tpc = tpc_table[gtpc]; + gr->sm_nr++; + } + +done: + kfree(gpc_table); + kfree(tpc_table); + kfree(gpc_tpc_mask); + return ret; +} + +static const struct gf100_gr_func +gv100_gr = { + .oneinit_tiles = gm200_gr_oneinit_tiles, + .oneinit_sm_id = gv100_gr_oneinit_sm_id, + .init = gf100_gr_init, + .init_419bd8 = gv100_gr_init_419bd8, + .init_gpc_mmu = gm200_gr_init_gpc_mmu, + .init_vsc_stream_master = gk104_gr_init_vsc_stream_master, + .init_zcull = gf117_gr_init_zcull, + .init_num_active_ltcs = gm200_gr_init_num_active_ltcs, + .init_rop_active_fbps = gp100_gr_init_rop_active_fbps, + .init_swdx_pes_mask = gp102_gr_init_swdx_pes_mask, + .init_fecs_exceptions = gp100_gr_init_fecs_exceptions, + .init_ds_hww_esr_2 = gm200_gr_init_ds_hww_esr_2, + .init_sked_hww_esr = gk104_gr_init_sked_hww_esr, + .init_ppc_exceptions = gk104_gr_init_ppc_exceptions, + .init_504430 = gv100_gr_init_504430, + .init_shader_exceptions = gv100_gr_init_shader_exceptions, + .init_rop_exceptions = gf100_gr_init_rop_exceptions, + .init_exception2 = gf100_gr_init_exception2, + .init_4188a4 = gv100_gr_init_4188a4, + .trap_mp = gv100_gr_trap_mp, + .fecs.reset = gf100_gr_fecs_reset, + .rops = gm200_gr_rops, + .gpc_nr = 6, + .tpc_nr = 7, + .ppc_nr = 3, + .grctx = &gv100_grctx, + .zbc = &gp102_gr_zbc, + .sclass = { + { -1, -1, FERMI_TWOD_A }, + { -1, -1, KEPLER_INLINE_TO_MEMORY_B }, + { -1, -1, VOLTA_A, &gf100_fermi }, + { -1, -1, VOLTA_COMPUTE_A }, + {} + } +}; + +MODULE_FIRMWARE("nvidia/gv100/gr/fecs_bl.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/fecs_inst.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/fecs_data.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/fecs_sig.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/gpccs_bl.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/gpccs_inst.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/gpccs_data.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/gpccs_sig.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/sw_ctx.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/sw_nonctx.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/sw_bundle_init.bin"); +MODULE_FIRMWARE("nvidia/gv100/gr/sw_method_init.bin"); + +static const struct gf100_gr_fwif +gv100_gr_fwif[] = { + { 0, gm200_gr_load, &gv100_gr, &gp108_gr_fecs_acr, &gp108_gr_gpccs_acr }, + { -1, gm200_gr_nofw }, + {} +}; + +int +gv100_gr_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_gr **pgr) +{ + return gf100_gr_new_(gv100_gr_fwif, device, type, inst, pgr); +} |