diff options
author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c new file mode 100644 index 000000000..d2c81dd63 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c @@ -0,0 +1,465 @@ +/* + * Copyright 2013 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. + * + * Authors: Ben Skeggs + */ +#include "nv50.h" +#include "ramseq.h" + +#include <core/device.h> +#include <core/option.h> +#include <subdev/bios.h> +#include <subdev/bios/perf.h> +#include <subdev/bios/pll.h> +#include <subdev/bios/timing.h> +#include <subdev/clk/pll.h> + +struct nv50_ramseq { + struct hwsq base; + struct hwsq_reg r_0x002504; + struct hwsq_reg r_0x004008; + struct hwsq_reg r_0x00400c; + struct hwsq_reg r_0x00c040; + struct hwsq_reg r_0x100210; + struct hwsq_reg r_0x1002d0; + struct hwsq_reg r_0x1002d4; + struct hwsq_reg r_0x1002dc; + struct hwsq_reg r_0x100da0[8]; + struct hwsq_reg r_0x100e20; + struct hwsq_reg r_0x100e24; + struct hwsq_reg r_0x611200; + struct hwsq_reg r_timing[9]; + struct hwsq_reg r_mr[4]; +}; + +struct nv50_ram { + struct nvkm_ram base; + struct nv50_ramseq hwsq; +}; + +#define QFX5800NVA0 1 + +static int +nv50_ram_calc(struct nvkm_fb *pfb, u32 freq) +{ + struct nvkm_bios *bios = nvkm_bios(pfb); + struct nv50_ram *ram = (void *)pfb->ram; + struct nv50_ramseq *hwsq = &ram->hwsq; + struct nvbios_perfE perfE; + struct nvbios_pll mpll; + struct { + u32 data; + u8 size; + } ramcfg, timing; + u8 ver, hdr, cnt, len, strap; + int N1, M1, N2, M2, P; + int ret, i; + + /* lookup closest matching performance table entry for frequency */ + i = 0; + do { + ramcfg.data = nvbios_perfEp(bios, i++, &ver, &hdr, &cnt, + &ramcfg.size, &perfE); + if (!ramcfg.data || (ver < 0x25 || ver >= 0x40) || + (ramcfg.size < 2)) { + nv_error(pfb, "invalid/missing perftab entry\n"); + return -EINVAL; + } + } while (perfE.memory < freq); + + /* locate specific data set for the attached memory */ + strap = nvbios_ramcfg_index(nv_subdev(pfb)); + if (strap >= cnt) { + nv_error(pfb, "invalid ramcfg strap\n"); + return -EINVAL; + } + + ramcfg.data += hdr + (strap * ramcfg.size); + + /* lookup memory timings, if bios says they're present */ + strap = nv_ro08(bios, ramcfg.data + 0x01); + if (strap != 0xff) { + timing.data = nvbios_timingEe(bios, strap, &ver, &hdr, + &cnt, &len); + if (!timing.data || ver != 0x10 || hdr < 0x12) { + nv_error(pfb, "invalid/missing timing entry " + "%02x %04x %02x %02x\n", + strap, timing.data, ver, hdr); + return -EINVAL; + } + } else { + timing.data = 0; + } + + ret = ram_init(hwsq, nv_subdev(pfb)); + if (ret) + return ret; + + ram_wait(hwsq, 0x01, 0x00); /* wait for !vblank */ + ram_wait(hwsq, 0x01, 0x01); /* wait for vblank */ + ram_wr32(hwsq, 0x611200, 0x00003300); + ram_wr32(hwsq, 0x002504, 0x00000001); /* block fifo */ + ram_nsec(hwsq, 8000); + ram_setf(hwsq, 0x10, 0x00); /* disable fb */ + ram_wait(hwsq, 0x00, 0x01); /* wait for fb disabled */ + + ram_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge */ + ram_wr32(hwsq, 0x1002d0, 0x00000001); /* refresh */ + ram_wr32(hwsq, 0x1002d0, 0x00000001); /* refresh */ + ram_wr32(hwsq, 0x100210, 0x00000000); /* disable auto-refresh */ + ram_wr32(hwsq, 0x1002dc, 0x00000001); /* enable self-refresh */ + + ret = nvbios_pll_parse(bios, 0x004008, &mpll); + mpll.vco2.max_freq = 0; + if (ret == 0) { + ret = nv04_pll_calc(nv_subdev(pfb), &mpll, freq, + &N1, &M1, &N2, &M2, &P); + if (ret == 0) + ret = -EINVAL; + } + + if (ret < 0) + return ret; + + ram_mask(hwsq, 0x00c040, 0xc000c000, 0x0000c000); + ram_mask(hwsq, 0x004008, 0x00000200, 0x00000200); + ram_mask(hwsq, 0x00400c, 0x0000ffff, (N1 << 8) | M1); + ram_mask(hwsq, 0x004008, 0x81ff0000, 0x80000000 | (mpll.bias_p << 19) | + (P << 22) | (P << 16)); +#if QFX5800NVA0 + for (i = 0; i < 8; i++) + ram_mask(hwsq, 0x100da0[i], 0x00000000, 0x00000000); /*XXX*/ +#endif + ram_nsec(hwsq, 96000); /*XXX*/ + ram_mask(hwsq, 0x004008, 0x00002200, 0x00002000); + + ram_wr32(hwsq, 0x1002dc, 0x00000000); /* disable self-refresh */ + ram_wr32(hwsq, 0x100210, 0x80000000); /* enable auto-refresh */ + + ram_nsec(hwsq, 12000); + + switch (ram->base.type) { + case NV_MEM_TYPE_DDR2: + ram_nuke(hwsq, mr[0]); /* force update */ + ram_mask(hwsq, mr[0], 0x000, 0x000); + break; + case NV_MEM_TYPE_GDDR3: + ram_mask(hwsq, mr[2], 0x000, 0x000); + ram_nuke(hwsq, mr[0]); /* force update */ + ram_mask(hwsq, mr[0], 0x000, 0x000); + break; + default: + break; + } + + ram_mask(hwsq, timing[3], 0x00000000, 0x00000000); /*XXX*/ + ram_mask(hwsq, timing[1], 0x00000000, 0x00000000); /*XXX*/ + ram_mask(hwsq, timing[6], 0x00000000, 0x00000000); /*XXX*/ + ram_mask(hwsq, timing[7], 0x00000000, 0x00000000); /*XXX*/ + ram_mask(hwsq, timing[8], 0x00000000, 0x00000000); /*XXX*/ + ram_mask(hwsq, timing[0], 0x00000000, 0x00000000); /*XXX*/ + ram_mask(hwsq, timing[2], 0x00000000, 0x00000000); /*XXX*/ + ram_mask(hwsq, timing[4], 0x00000000, 0x00000000); /*XXX*/ + ram_mask(hwsq, timing[5], 0x00000000, 0x00000000); /*XXX*/ + + ram_mask(hwsq, timing[0], 0x00000000, 0x00000000); /*XXX*/ + +#if QFX5800NVA0 + ram_nuke(hwsq, 0x100e24); + ram_mask(hwsq, 0x100e24, 0x00000000, 0x00000000); + ram_nuke(hwsq, 0x100e20); + ram_mask(hwsq, 0x100e20, 0x00000000, 0x00000000); +#endif + + ram_mask(hwsq, mr[0], 0x100, 0x100); + ram_mask(hwsq, mr[0], 0x100, 0x000); + + ram_setf(hwsq, 0x10, 0x01); /* enable fb */ + ram_wait(hwsq, 0x00, 0x00); /* wait for fb enabled */ + ram_wr32(hwsq, 0x611200, 0x00003330); + ram_wr32(hwsq, 0x002504, 0x00000000); /* un-block fifo */ + return 0; +} + +static int +nv50_ram_prog(struct nvkm_fb *pfb) +{ + struct nvkm_device *device = nv_device(pfb); + struct nv50_ram *ram = (void *)pfb->ram; + struct nv50_ramseq *hwsq = &ram->hwsq; + + ram_exec(hwsq, nvkm_boolopt(device->cfgopt, "NvMemExec", true)); + return 0; +} + +static void +nv50_ram_tidy(struct nvkm_fb *pfb) +{ + struct nv50_ram *ram = (void *)pfb->ram; + struct nv50_ramseq *hwsq = &ram->hwsq; + ram_exec(hwsq, false); +} + +void +__nv50_ram_put(struct nvkm_fb *pfb, struct nvkm_mem *mem) +{ + struct nvkm_mm_node *this; + + while (!list_empty(&mem->regions)) { + this = list_first_entry(&mem->regions, typeof(*this), rl_entry); + + list_del(&this->rl_entry); + nvkm_mm_free(&pfb->vram, &this); + } + + nvkm_mm_free(&pfb->tags, &mem->tag); +} + +void +nv50_ram_put(struct nvkm_fb *pfb, struct nvkm_mem **pmem) +{ + struct nvkm_mem *mem = *pmem; + + *pmem = NULL; + if (unlikely(mem == NULL)) + return; + + mutex_lock(&pfb->base.mutex); + __nv50_ram_put(pfb, mem); + mutex_unlock(&pfb->base.mutex); + + kfree(mem); +} + +int +nv50_ram_get(struct nvkm_fb *pfb, u64 size, u32 align, u32 ncmin, + u32 memtype, struct nvkm_mem **pmem) +{ + struct nvkm_mm *heap = &pfb->vram; + struct nvkm_mm *tags = &pfb->tags; + struct nvkm_mm_node *r; + struct nvkm_mem *mem; + int comp = (memtype & 0x300) >> 8; + int type = (memtype & 0x07f); + int back = (memtype & 0x800); + int min, max, ret; + + max = (size >> 12); + min = ncmin ? (ncmin >> 12) : max; + align >>= 12; + + mem = kzalloc(sizeof(*mem), GFP_KERNEL); + if (!mem) + return -ENOMEM; + + mutex_lock(&pfb->base.mutex); + if (comp) { + if (align == 16) { + int n = (max >> 4) * comp; + + ret = nvkm_mm_head(tags, 0, 1, n, n, 1, &mem->tag); + if (ret) + mem->tag = NULL; + } + + if (unlikely(!mem->tag)) + comp = 0; + } + + INIT_LIST_HEAD(&mem->regions); + mem->memtype = (comp << 7) | type; + mem->size = max; + + type = nv50_fb_memtype[type]; + do { + if (back) + ret = nvkm_mm_tail(heap, 0, type, max, min, align, &r); + else + ret = nvkm_mm_head(heap, 0, type, max, min, align, &r); + if (ret) { + mutex_unlock(&pfb->base.mutex); + pfb->ram->put(pfb, &mem); + return ret; + } + + list_add_tail(&r->rl_entry, &mem->regions); + max -= r->length; + } while (max); + mutex_unlock(&pfb->base.mutex); + + r = list_first_entry(&mem->regions, struct nvkm_mm_node, rl_entry); + mem->offset = (u64)r->offset << 12; + *pmem = mem; + return 0; +} + +static u32 +nv50_fb_vram_rblock(struct nvkm_fb *pfb, struct nvkm_ram *ram) +{ + int colbits, rowbitsa, rowbitsb, banks; + u64 rowsize, predicted; + u32 r0, r4, rt, rblock_size; + + r0 = nv_rd32(pfb, 0x100200); + r4 = nv_rd32(pfb, 0x100204); + rt = nv_rd32(pfb, 0x100250); + nv_debug(pfb, "memcfg 0x%08x 0x%08x 0x%08x 0x%08x\n", + r0, r4, rt, nv_rd32(pfb, 0x001540)); + + colbits = (r4 & 0x0000f000) >> 12; + rowbitsa = ((r4 & 0x000f0000) >> 16) + 8; + rowbitsb = ((r4 & 0x00f00000) >> 20) + 8; + banks = 1 << (((r4 & 0x03000000) >> 24) + 2); + + rowsize = ram->parts * banks * (1 << colbits) * 8; + predicted = rowsize << rowbitsa; + if (r0 & 0x00000004) + predicted += rowsize << rowbitsb; + + if (predicted != ram->size) { + nv_warn(pfb, "memory controller reports %d MiB VRAM\n", + (u32)(ram->size >> 20)); + } + + rblock_size = rowsize; + if (rt & 1) + rblock_size *= 3; + + nv_debug(pfb, "rblock %d bytes\n", rblock_size); + return rblock_size; +} + +int +nv50_ram_create_(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, int length, void **pobject) +{ + const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */ + const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */ + struct nvkm_bios *bios = nvkm_bios(parent); + struct nvkm_fb *pfb = nvkm_fb(parent); + struct nvkm_ram *ram; + int ret; + + ret = nvkm_ram_create_(parent, engine, oclass, length, pobject); + ram = *pobject; + if (ret) + return ret; + + ram->size = nv_rd32(pfb, 0x10020c); + ram->size = (ram->size & 0xffffff00) | ((ram->size & 0x000000ff) << 32); + + ram->part_mask = (nv_rd32(pfb, 0x001540) & 0x00ff0000) >> 16; + ram->parts = hweight8(ram->part_mask); + + switch (nv_rd32(pfb, 0x100714) & 0x00000007) { + case 0: ram->type = NV_MEM_TYPE_DDR1; break; + case 1: + if (nvkm_fb_bios_memtype(bios) == NV_MEM_TYPE_DDR3) + ram->type = NV_MEM_TYPE_DDR3; + else + ram->type = NV_MEM_TYPE_DDR2; + break; + case 2: ram->type = NV_MEM_TYPE_GDDR3; break; + case 3: ram->type = NV_MEM_TYPE_GDDR4; break; + case 4: ram->type = NV_MEM_TYPE_GDDR5; break; + default: + break; + } + + ret = nvkm_mm_init(&pfb->vram, rsvd_head, (ram->size >> 12) - + (rsvd_head + rsvd_tail), + nv50_fb_vram_rblock(pfb, ram) >> 12); + if (ret) + return ret; + + ram->ranks = (nv_rd32(pfb, 0x100200) & 0x4) ? 2 : 1; + ram->tags = nv_rd32(pfb, 0x100320); + ram->get = nv50_ram_get; + ram->put = nv50_ram_put; + return 0; +} + +static int +nv50_ram_ctor(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, void *data, u32 datasize, + struct nvkm_object **pobject) +{ + struct nv50_ram *ram; + int ret, i; + + ret = nv50_ram_create(parent, engine, oclass, &ram); + *pobject = nv_object(ram); + if (ret) + return ret; + + switch (ram->base.type) { + case NV_MEM_TYPE_DDR2: + case NV_MEM_TYPE_GDDR3: + ram->base.calc = nv50_ram_calc; + ram->base.prog = nv50_ram_prog; + ram->base.tidy = nv50_ram_tidy; + break; + default: + nv_warn(ram, "reclocking of this ram type unsupported\n"); + return 0; + } + + ram->hwsq.r_0x002504 = hwsq_reg(0x002504); + ram->hwsq.r_0x00c040 = hwsq_reg(0x00c040); + ram->hwsq.r_0x004008 = hwsq_reg(0x004008); + ram->hwsq.r_0x00400c = hwsq_reg(0x00400c); + ram->hwsq.r_0x100210 = hwsq_reg(0x100210); + ram->hwsq.r_0x1002d0 = hwsq_reg(0x1002d0); + ram->hwsq.r_0x1002d4 = hwsq_reg(0x1002d4); + ram->hwsq.r_0x1002dc = hwsq_reg(0x1002dc); + for (i = 0; i < 8; i++) + ram->hwsq.r_0x100da0[i] = hwsq_reg(0x100da0 + (i * 0x04)); + ram->hwsq.r_0x100e20 = hwsq_reg(0x100e20); + ram->hwsq.r_0x100e24 = hwsq_reg(0x100e24); + ram->hwsq.r_0x611200 = hwsq_reg(0x611200); + + for (i = 0; i < 9; i++) + ram->hwsq.r_timing[i] = hwsq_reg(0x100220 + (i * 0x04)); + + if (ram->base.ranks > 1) { + ram->hwsq.r_mr[0] = hwsq_reg2(0x1002c0, 0x1002c8); + ram->hwsq.r_mr[1] = hwsq_reg2(0x1002c4, 0x1002cc); + ram->hwsq.r_mr[2] = hwsq_reg2(0x1002e0, 0x1002e8); + ram->hwsq.r_mr[3] = hwsq_reg2(0x1002e4, 0x1002ec); + } else { + ram->hwsq.r_mr[0] = hwsq_reg(0x1002c0); + ram->hwsq.r_mr[1] = hwsq_reg(0x1002c4); + ram->hwsq.r_mr[2] = hwsq_reg(0x1002e0); + ram->hwsq.r_mr[3] = hwsq_reg(0x1002e4); + } + + return 0; +} + +struct nvkm_oclass +nv50_ram_oclass = { + .ofuncs = &(struct nvkm_ofuncs) { + .ctor = nv50_ram_ctor, + .dtor = _nvkm_ram_dtor, + .init = _nvkm_ram_init, + .fini = _nvkm_ram_fini, + } +}; |