258 lines
7.1 KiB
C
258 lines
7.1 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "priv.h"
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#include <core/memory.h>
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#include <subdev/fb.h>
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#include <subdev/timer.h>
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void
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gf100_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit)
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{
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struct nvkm_device *device = ltc->subdev.device;
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nvkm_wr32(device, 0x17e8cc, start);
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nvkm_wr32(device, 0x17e8d0, limit);
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nvkm_wr32(device, 0x17e8c8, 0x00000004);
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}
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void
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gf100_ltc_cbc_wait(struct nvkm_ltc *ltc)
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{
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struct nvkm_device *device = ltc->subdev.device;
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int c, s;
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for (c = 0; c < ltc->ltc_nr; c++) {
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for (s = 0; s < ltc->lts_nr; s++) {
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const u32 addr = 0x1410c8 + (c * 0x2000) + (s * 0x400);
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nvkm_msec(device, 2000,
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if (!nvkm_rd32(device, addr))
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break;
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);
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}
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}
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}
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void
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gf100_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])
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{
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struct nvkm_device *device = ltc->subdev.device;
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nvkm_mask(device, 0x17ea44, 0x0000000f, i);
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nvkm_wr32(device, 0x17ea48, color[0]);
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nvkm_wr32(device, 0x17ea4c, color[1]);
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nvkm_wr32(device, 0x17ea50, color[2]);
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nvkm_wr32(device, 0x17ea54, color[3]);
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}
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void
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gf100_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth)
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{
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struct nvkm_device *device = ltc->subdev.device;
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nvkm_mask(device, 0x17ea44, 0x0000000f, i);
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nvkm_wr32(device, 0x17ea58, depth);
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}
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const struct nvkm_bitfield
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gf100_ltc_lts_intr_name[] = {
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{ 0x00000001, "IDLE_ERROR_IQ" },
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{ 0x00000002, "IDLE_ERROR_CBC" },
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{ 0x00000004, "IDLE_ERROR_TSTG" },
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{ 0x00000008, "IDLE_ERROR_DSTG" },
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{ 0x00000010, "EVICTED_CB" },
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{ 0x00000020, "ILLEGAL_COMPSTAT" },
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{ 0x00000040, "BLOCKLINEAR_CB" },
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{ 0x00000100, "ECC_SEC_ERROR" },
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{ 0x00000200, "ECC_DED_ERROR" },
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{ 0x00000400, "DEBUG" },
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{ 0x00000800, "ATOMIC_TO_Z" },
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{ 0x00001000, "ILLEGAL_ATOMIC" },
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{ 0x00002000, "BLKACTIVITY_ERR" },
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{}
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};
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static void
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gf100_ltc_lts_intr(struct nvkm_ltc *ltc, int c, int s)
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{
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struct nvkm_subdev *subdev = <c->subdev;
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struct nvkm_device *device = subdev->device;
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u32 base = 0x141000 + (c * 0x2000) + (s * 0x400);
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u32 intr = nvkm_rd32(device, base + 0x020);
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u32 stat = intr & 0x0000ffff;
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char msg[128];
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if (stat) {
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nvkm_snprintbf(msg, sizeof(msg), gf100_ltc_lts_intr_name, stat);
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nvkm_error(subdev, "LTC%d_LTS%d: %08x [%s]\n", c, s, stat, msg);
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}
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nvkm_wr32(device, base + 0x020, intr);
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}
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void
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gf100_ltc_intr(struct nvkm_ltc *ltc)
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{
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struct nvkm_device *device = ltc->subdev.device;
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u32 mask;
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mask = nvkm_rd32(device, 0x00017c);
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while (mask) {
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u32 s, c = __ffs(mask);
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for (s = 0; s < ltc->lts_nr; s++)
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gf100_ltc_lts_intr(ltc, c, s);
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mask &= ~(1 << c);
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}
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}
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void
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gf100_ltc_invalidate(struct nvkm_ltc *ltc)
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{
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struct nvkm_device *device = ltc->subdev.device;
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s64 taken;
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nvkm_wr32(device, 0x70004, 0x00000001);
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taken = nvkm_wait_msec(device, 2000, 0x70004, 0x00000003, 0x00000000);
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if (taken > 0)
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nvkm_debug(<c->subdev, "LTC invalidate took %lld ns\n", taken);
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}
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void
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gf100_ltc_flush(struct nvkm_ltc *ltc)
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{
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struct nvkm_device *device = ltc->subdev.device;
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s64 taken;
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nvkm_wr32(device, 0x70010, 0x00000001);
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taken = nvkm_wait_msec(device, 2000, 0x70010, 0x00000003, 0x00000000);
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if (taken > 0)
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nvkm_debug(<c->subdev, "LTC flush took %lld ns\n", taken);
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}
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/* TODO: Figure out tag memory details and drop the over-cautious allocation.
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*/
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int
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gf100_ltc_oneinit_tag_ram(struct nvkm_ltc *ltc)
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{
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struct nvkm_device *device = ltc->subdev.device;
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struct nvkm_fb *fb = device->fb;
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struct nvkm_ram *ram = fb->ram;
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u32 bits = (nvkm_rd32(device, 0x100c80) & 0x00001000) ? 16 : 17;
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u32 tag_size, tag_margin, tag_align;
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int ret;
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/* No VRAM, no tags for now. */
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if (!ram) {
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ltc->num_tags = 0;
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goto mm_init;
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}
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/* tags for 1/4 of VRAM should be enough (8192/4 per GiB of VRAM) */
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ltc->num_tags = (ram->size >> 17) / 4;
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if (ltc->num_tags > (1 << bits))
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ltc->num_tags = 1 << bits; /* we have 16/17 bits in PTE */
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ltc->num_tags = (ltc->num_tags + 63) & ~63; /* round up to 64 */
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tag_align = ltc->ltc_nr * 0x800;
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tag_margin = (tag_align < 0x6000) ? 0x6000 : tag_align;
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/* 4 part 4 sub: 0x2000 bytes for 56 tags */
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/* 3 part 4 sub: 0x6000 bytes for 168 tags */
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/*
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* About 147 bytes per tag. Let's be safe and allocate x2, which makes
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* 0x4980 bytes for 64 tags, and round up to 0x6000 bytes for 64 tags.
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*
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* For 4 GiB of memory we'll have 8192 tags which makes 3 MiB, < 0.1 %.
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*/
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tag_size = (ltc->num_tags / 64) * 0x6000 + tag_margin;
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tag_size += tag_align;
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ret = nvkm_ram_get(device, NVKM_RAM_MM_NORMAL, 0x01, 12, tag_size,
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true, true, <c->tag_ram);
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if (ret) {
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ltc->num_tags = 0;
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} else {
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u64 tag_base = nvkm_memory_addr(ltc->tag_ram) + tag_margin;
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tag_base += tag_align - 1;
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do_div(tag_base, tag_align);
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ltc->tag_base = tag_base;
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}
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mm_init:
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nvkm_mm_fini(&fb->tags.mm);
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return nvkm_mm_init(&fb->tags.mm, 0, 0, ltc->num_tags, 1);
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}
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int
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gf100_ltc_oneinit(struct nvkm_ltc *ltc)
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{
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struct nvkm_device *device = ltc->subdev.device;
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const u32 parts = nvkm_rd32(device, 0x022438);
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const u32 mask = nvkm_rd32(device, 0x022554);
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const u32 slice = nvkm_rd32(device, 0x17e8dc) >> 28;
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int i;
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for (i = 0; i < parts; i++) {
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if (!(mask & (1 << i)))
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ltc->ltc_nr++;
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}
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ltc->lts_nr = slice;
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return gf100_ltc_oneinit_tag_ram(ltc);
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}
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static void
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gf100_ltc_init(struct nvkm_ltc *ltc)
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{
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struct nvkm_device *device = ltc->subdev.device;
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u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
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nvkm_mask(device, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
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nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
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nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
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nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
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}
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static const struct nvkm_ltc_func
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gf100_ltc = {
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.oneinit = gf100_ltc_oneinit,
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.init = gf100_ltc_init,
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.intr = gf100_ltc_intr,
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.cbc_clear = gf100_ltc_cbc_clear,
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.cbc_wait = gf100_ltc_cbc_wait,
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.zbc_color = 16,
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.zbc_depth = 16,
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.zbc_clear_color = gf100_ltc_zbc_clear_color,
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.zbc_clear_depth = gf100_ltc_zbc_clear_depth,
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.invalidate = gf100_ltc_invalidate,
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.flush = gf100_ltc_flush,
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};
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int
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gf100_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
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struct nvkm_ltc **pltc)
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{
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return nvkm_ltc_new_(&gf100_ltc, device, type, inst, pltc);
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}
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