cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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gp102.c (5051B)


      1/*
      2 * Copyright 2016 Red Hat Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 * Authors: Ben Skeggs <bskeggs@redhat.com>
     23 */
     24#include "gf100.h"
     25#include "ctxgf100.h"
     26
     27#include <nvif/class.h>
     28
     29static void
     30gp102_gr_zbc_clear_stencil(struct gf100_gr *gr, int zbc)
     31{
     32	struct nvkm_device *device = gr->base.engine.subdev.device;
     33	const int znum =  zbc - 1;
     34	const u32 zoff = znum * 4;
     35
     36	if (gr->zbc_stencil[zbc].format)
     37		nvkm_wr32(device, 0x41815c + zoff, gr->zbc_stencil[zbc].ds);
     38	nvkm_mask(device, 0x418198 + ((znum / 4) * 4),
     39			  0x0000007f << ((znum % 4) * 7),
     40			  gr->zbc_stencil[zbc].format << ((znum % 4) * 7));
     41}
     42
     43static int
     44gp102_gr_zbc_stencil_get(struct gf100_gr *gr, int format,
     45			 const u32 ds, const u32 l2)
     46{
     47	struct nvkm_ltc *ltc = gr->base.engine.subdev.device->ltc;
     48	int zbc = -ENOSPC, i;
     49
     50	for (i = ltc->zbc_min; i <= ltc->zbc_max; i++) {
     51		if (gr->zbc_stencil[i].format) {
     52			if (gr->zbc_stencil[i].format != format)
     53				continue;
     54			if (gr->zbc_stencil[i].ds != ds)
     55				continue;
     56			if (gr->zbc_stencil[i].l2 != l2) {
     57				WARN_ON(1);
     58				return -EINVAL;
     59			}
     60			return i;
     61		} else {
     62			zbc = (zbc < 0) ? i : zbc;
     63		}
     64	}
     65
     66	if (zbc < 0)
     67		return zbc;
     68
     69	gr->zbc_stencil[zbc].format = format;
     70	gr->zbc_stencil[zbc].ds = ds;
     71	gr->zbc_stencil[zbc].l2 = l2;
     72	nvkm_ltc_zbc_stencil_get(ltc, zbc, l2);
     73	gr->func->zbc->clear_stencil(gr, zbc);
     74	return zbc;
     75}
     76
     77const struct gf100_gr_func_zbc
     78gp102_gr_zbc = {
     79	.clear_color = gp100_gr_zbc_clear_color,
     80	.clear_depth = gp100_gr_zbc_clear_depth,
     81	.stencil_get = gp102_gr_zbc_stencil_get,
     82	.clear_stencil = gp102_gr_zbc_clear_stencil,
     83};
     84
     85void
     86gp102_gr_init_swdx_pes_mask(struct gf100_gr *gr)
     87{
     88	struct nvkm_device *device = gr->base.engine.subdev.device;
     89	u32 mask = 0, data, gpc;
     90
     91	for (gpc = 0; gpc < gr->gpc_nr; gpc++) {
     92		data = nvkm_rd32(device, GPC_UNIT(gpc, 0x0c50)) & 0x0000000f;
     93		mask |= data << (gpc * 4);
     94	}
     95
     96	nvkm_wr32(device, 0x4181d0, mask);
     97}
     98
     99static const struct gf100_gr_func
    100gp102_gr = {
    101	.oneinit_tiles = gm200_gr_oneinit_tiles,
    102	.oneinit_sm_id = gm200_gr_oneinit_sm_id,
    103	.init = gf100_gr_init,
    104	.init_gpc_mmu = gm200_gr_init_gpc_mmu,
    105	.init_vsc_stream_master = gk104_gr_init_vsc_stream_master,
    106	.init_zcull = gf117_gr_init_zcull,
    107	.init_num_active_ltcs = gm200_gr_init_num_active_ltcs,
    108	.init_rop_active_fbps = gp100_gr_init_rop_active_fbps,
    109	.init_swdx_pes_mask = gp102_gr_init_swdx_pes_mask,
    110	.init_fecs_exceptions = gp100_gr_init_fecs_exceptions,
    111	.init_ds_hww_esr_2 = gm200_gr_init_ds_hww_esr_2,
    112	.init_sked_hww_esr = gk104_gr_init_sked_hww_esr,
    113	.init_419cc0 = gf100_gr_init_419cc0,
    114	.init_ppc_exceptions = gk104_gr_init_ppc_exceptions,
    115	.init_tex_hww_esr = gf100_gr_init_tex_hww_esr,
    116	.init_504430 = gm107_gr_init_504430,
    117	.init_shader_exceptions = gp100_gr_init_shader_exceptions,
    118	.trap_mp = gf100_gr_trap_mp,
    119	.rops = gm200_gr_rops,
    120	.gpc_nr = 6,
    121	.tpc_nr = 5,
    122	.ppc_nr = 3,
    123	.grctx = &gp102_grctx,
    124	.zbc = &gp102_gr_zbc,
    125	.sclass = {
    126		{ -1, -1, FERMI_TWOD_A },
    127		{ -1, -1, KEPLER_INLINE_TO_MEMORY_B },
    128		{ -1, -1, PASCAL_B, &gf100_fermi },
    129		{ -1, -1, PASCAL_COMPUTE_B },
    130		{}
    131	}
    132};
    133
    134MODULE_FIRMWARE("nvidia/gp102/gr/fecs_bl.bin");
    135MODULE_FIRMWARE("nvidia/gp102/gr/fecs_inst.bin");
    136MODULE_FIRMWARE("nvidia/gp102/gr/fecs_data.bin");
    137MODULE_FIRMWARE("nvidia/gp102/gr/fecs_sig.bin");
    138MODULE_FIRMWARE("nvidia/gp102/gr/gpccs_bl.bin");
    139MODULE_FIRMWARE("nvidia/gp102/gr/gpccs_inst.bin");
    140MODULE_FIRMWARE("nvidia/gp102/gr/gpccs_data.bin");
    141MODULE_FIRMWARE("nvidia/gp102/gr/gpccs_sig.bin");
    142MODULE_FIRMWARE("nvidia/gp102/gr/sw_ctx.bin");
    143MODULE_FIRMWARE("nvidia/gp102/gr/sw_nonctx.bin");
    144MODULE_FIRMWARE("nvidia/gp102/gr/sw_bundle_init.bin");
    145MODULE_FIRMWARE("nvidia/gp102/gr/sw_method_init.bin");
    146
    147static const struct gf100_gr_fwif
    148gp102_gr_fwif[] = {
    149	{  0, gm200_gr_load, &gp102_gr, &gm200_gr_fecs_acr, &gm200_gr_gpccs_acr },
    150	{ -1, gm200_gr_nofw },
    151	{}
    152};
    153
    154int
    155gp102_gr_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_gr **pgr)
    156{
    157	return gf100_gr_new_(gp102_gr_fwif, device, type, inst, pgr);
    158}