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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.c288
1 files changed, 288 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.c
new file mode 100644
index 000000000..95fd8f834
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.c
@@ -0,0 +1,288 @@
+/*
+ * Copyright 2012 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 "ram.h"
+
+#include <core/client.h>
+#include <core/enum.h>
+#include <engine/fifo.h>
+
+static int
+nv50_fb_ram_new(struct nvkm_fb *base, struct nvkm_ram **pram)
+{
+ struct nv50_fb *fb = nv50_fb(base);
+ return fb->func->ram_new(&fb->base, pram);
+}
+
+static const struct nvkm_enum vm_dispatch_subclients[] = {
+ { 0x00000000, "GRCTX" },
+ { 0x00000001, "NOTIFY" },
+ { 0x00000002, "QUERY" },
+ { 0x00000003, "COND" },
+ { 0x00000004, "M2M_IN" },
+ { 0x00000005, "M2M_OUT" },
+ { 0x00000006, "M2M_NOTIFY" },
+ {}
+};
+
+static const struct nvkm_enum vm_ccache_subclients[] = {
+ { 0x00000000, "CB" },
+ { 0x00000001, "TIC" },
+ { 0x00000002, "TSC" },
+ {}
+};
+
+static const struct nvkm_enum vm_prop_subclients[] = {
+ { 0x00000000, "RT0" },
+ { 0x00000001, "RT1" },
+ { 0x00000002, "RT2" },
+ { 0x00000003, "RT3" },
+ { 0x00000004, "RT4" },
+ { 0x00000005, "RT5" },
+ { 0x00000006, "RT6" },
+ { 0x00000007, "RT7" },
+ { 0x00000008, "ZETA" },
+ { 0x00000009, "LOCAL" },
+ { 0x0000000a, "GLOBAL" },
+ { 0x0000000b, "STACK" },
+ { 0x0000000c, "DST2D" },
+ {}
+};
+
+static const struct nvkm_enum vm_pfifo_subclients[] = {
+ { 0x00000000, "PUSHBUF" },
+ { 0x00000001, "SEMAPHORE" },
+ {}
+};
+
+static const struct nvkm_enum vm_bar_subclients[] = {
+ { 0x00000000, "FB" },
+ { 0x00000001, "IN" },
+ {}
+};
+
+static const struct nvkm_enum vm_client[] = {
+ { 0x00000000, "STRMOUT" },
+ { 0x00000003, "DISPATCH", vm_dispatch_subclients },
+ { 0x00000004, "PFIFO_WRITE" },
+ { 0x00000005, "CCACHE", vm_ccache_subclients },
+ { 0x00000006, "PMSPPP" },
+ { 0x00000007, "CLIPID" },
+ { 0x00000008, "PFIFO_READ" },
+ { 0x00000009, "VFETCH" },
+ { 0x0000000a, "TEXTURE" },
+ { 0x0000000b, "PROP", vm_prop_subclients },
+ { 0x0000000c, "PVP" },
+ { 0x0000000d, "PBSP" },
+ { 0x0000000e, "PCRYPT" },
+ { 0x0000000f, "PCOUNTER" },
+ { 0x00000011, "PDAEMON" },
+ {}
+};
+
+static const struct nvkm_enum vm_engine[] = {
+ { 0x00000000, "PGRAPH" },
+ { 0x00000001, "PVP" },
+ { 0x00000004, "PEEPHOLE" },
+ { 0x00000005, "PFIFO", vm_pfifo_subclients },
+ { 0x00000006, "BAR", vm_bar_subclients },
+ { 0x00000008, "PMSPPP" },
+ { 0x00000008, "PMPEG" },
+ { 0x00000009, "PBSP" },
+ { 0x0000000a, "PCRYPT" },
+ { 0x0000000b, "PCOUNTER" },
+ { 0x0000000c, "SEMAPHORE_BG" },
+ { 0x0000000d, "PCE0" },
+ { 0x0000000e, "PMU" },
+ {}
+};
+
+static const struct nvkm_enum vm_fault[] = {
+ { 0x00000000, "PT_NOT_PRESENT" },
+ { 0x00000001, "PT_TOO_SHORT" },
+ { 0x00000002, "PAGE_NOT_PRESENT" },
+ { 0x00000003, "PAGE_SYSTEM_ONLY" },
+ { 0x00000004, "PAGE_READ_ONLY" },
+ { 0x00000006, "NULL_DMAOBJ" },
+ { 0x00000007, "WRONG_MEMTYPE" },
+ { 0x0000000b, "VRAM_LIMIT" },
+ { 0x0000000f, "DMAOBJ_LIMIT" },
+ {}
+};
+
+static void
+nv50_fb_intr(struct nvkm_fb *base)
+{
+ struct nv50_fb *fb = nv50_fb(base);
+ struct nvkm_subdev *subdev = &fb->base.subdev;
+ struct nvkm_device *device = subdev->device;
+ struct nvkm_fifo *fifo = device->fifo;
+ struct nvkm_fifo_chan *chan;
+ const struct nvkm_enum *en, *re, *cl, *sc;
+ u32 trap[6], idx, inst;
+ u8 st0, st1, st2, st3;
+ unsigned long flags;
+ int i;
+
+ idx = nvkm_rd32(device, 0x100c90);
+ if (!(idx & 0x80000000))
+ return;
+ idx &= 0x00ffffff;
+
+ for (i = 0; i < 6; i++) {
+ nvkm_wr32(device, 0x100c90, idx | i << 24);
+ trap[i] = nvkm_rd32(device, 0x100c94);
+ }
+ nvkm_wr32(device, 0x100c90, idx | 0x80000000);
+
+ /* decode status bits into something more useful */
+ if (device->chipset < 0xa3 ||
+ device->chipset == 0xaa || device->chipset == 0xac) {
+ st0 = (trap[0] & 0x0000000f) >> 0;
+ st1 = (trap[0] & 0x000000f0) >> 4;
+ st2 = (trap[0] & 0x00000f00) >> 8;
+ st3 = (trap[0] & 0x0000f000) >> 12;
+ } else {
+ st0 = (trap[0] & 0x000000ff) >> 0;
+ st1 = (trap[0] & 0x0000ff00) >> 8;
+ st2 = (trap[0] & 0x00ff0000) >> 16;
+ st3 = (trap[0] & 0xff000000) >> 24;
+ }
+ inst = ((trap[2] << 16) | trap[1]) << 12;
+
+ en = nvkm_enum_find(vm_engine, st0);
+ re = nvkm_enum_find(vm_fault , st1);
+ cl = nvkm_enum_find(vm_client, st2);
+ if (cl && cl->data) sc = nvkm_enum_find(cl->data, st3);
+ else if (en && en->data) sc = nvkm_enum_find(en->data, st3);
+ else sc = NULL;
+
+ chan = nvkm_fifo_chan_inst(fifo, inst, &flags);
+ nvkm_error(subdev, "trapped %s at %02x%04x%04x on channel %d [%08x %s] "
+ "engine %02x [%s] client %02x [%s] "
+ "subclient %02x [%s] reason %08x [%s]\n",
+ (trap[5] & 0x00000100) ? "read" : "write",
+ trap[5] & 0xff, trap[4] & 0xffff, trap[3] & 0xffff,
+ chan ? chan->chid : -1, inst,
+ chan ? chan->object.client->name : "unknown",
+ st0, en ? en->name : "",
+ st2, cl ? cl->name : "", st3, sc ? sc->name : "",
+ st1, re ? re->name : "");
+ nvkm_fifo_chan_put(fifo, flags, &chan);
+}
+
+static int
+nv50_fb_oneinit(struct nvkm_fb *base)
+{
+ struct nv50_fb *fb = nv50_fb(base);
+ struct nvkm_device *device = fb->base.subdev.device;
+
+ fb->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+ if (fb->r100c08_page) {
+ fb->r100c08 = dma_map_page(device->dev, fb->r100c08_page, 0,
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(device->dev, fb->r100c08))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static void
+nv50_fb_init(struct nvkm_fb *base)
+{
+ struct nv50_fb *fb = nv50_fb(base);
+ struct nvkm_device *device = fb->base.subdev.device;
+
+ /* Not a clue what this is exactly. Without pointing it at a
+ * scratch page, VRAM->GART blits with M2MF (as in DDX DFS)
+ * cause IOMMU "read from address 0" errors (rh#561267)
+ */
+ nvkm_wr32(device, 0x100c08, fb->r100c08 >> 8);
+
+ /* This is needed to get meaningful information from 100c90
+ * on traps. No idea what these values mean exactly. */
+ nvkm_wr32(device, 0x100c90, fb->func->trap);
+}
+
+static u32
+nv50_fb_tags(struct nvkm_fb *base)
+{
+ struct nv50_fb *fb = nv50_fb(base);
+ if (fb->func->tags)
+ return fb->func->tags(&fb->base);
+ return 0;
+}
+
+static void *
+nv50_fb_dtor(struct nvkm_fb *base)
+{
+ struct nv50_fb *fb = nv50_fb(base);
+ struct nvkm_device *device = fb->base.subdev.device;
+
+ if (fb->r100c08_page) {
+ dma_unmap_page(device->dev, fb->r100c08, PAGE_SIZE,
+ DMA_BIDIRECTIONAL);
+ __free_page(fb->r100c08_page);
+ }
+
+ return fb;
+}
+
+static const struct nvkm_fb_func
+nv50_fb_ = {
+ .dtor = nv50_fb_dtor,
+ .tags = nv50_fb_tags,
+ .oneinit = nv50_fb_oneinit,
+ .init = nv50_fb_init,
+ .intr = nv50_fb_intr,
+ .ram_new = nv50_fb_ram_new,
+};
+
+int
+nv50_fb_new_(const struct nv50_fb_func *func, struct nvkm_device *device,
+ enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
+{
+ struct nv50_fb *fb;
+
+ if (!(fb = kzalloc(sizeof(*fb), GFP_KERNEL)))
+ return -ENOMEM;
+ nvkm_fb_ctor(&nv50_fb_, device, type, inst, &fb->base);
+ fb->func = func;
+ *pfb = &fb->base;
+ return 0;
+}
+
+static const struct nv50_fb_func
+nv50_fb = {
+ .ram_new = nv50_ram_new,
+ .tags = nv20_fb_tags,
+ .trap = 0x000707ff,
+};
+
+int
+nv50_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
+{
+ return nv50_fb_new_(&nv50_fb, device, type, inst, pfb);
+}