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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c465
1 files changed, 465 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
new file mode 100644
index 000000000000..d2c81dd635dc
--- /dev/null
+++ b/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,
+ }
+};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.