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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/ltc
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/ltc')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/Kbuild9
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c143
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c256
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c57
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c152
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm200.c64
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp100.c76
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp102.c52
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c66
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h51
10 files changed, 926 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/Kbuild
new file mode 100644
index 000000000..728d75010
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/Kbuild
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: MIT
+nvkm-y += nvkm/subdev/ltc/base.o
+nvkm-y += nvkm/subdev/ltc/gf100.o
+nvkm-y += nvkm/subdev/ltc/gk104.o
+nvkm-y += nvkm/subdev/ltc/gm107.o
+nvkm-y += nvkm/subdev/ltc/gm200.o
+nvkm-y += nvkm/subdev/ltc/gp100.o
+nvkm-y += nvkm/subdev/ltc/gp102.o
+nvkm-y += nvkm/subdev/ltc/gp10b.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
new file mode 100644
index 000000000..fa683c190
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2014 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 <bskeggs@redhat.com>
+ */
+#include "priv.h"
+
+#include <core/memory.h>
+
+void
+nvkm_ltc_tags_clear(struct nvkm_device *device, u32 first, u32 count)
+{
+ struct nvkm_ltc *ltc = device->ltc;
+ const u32 limit = first + count - 1;
+
+ BUG_ON((first > limit) || (limit >= ltc->num_tags));
+
+ mutex_lock(&ltc->mutex);
+ ltc->func->cbc_clear(ltc, first, limit);
+ ltc->func->cbc_wait(ltc);
+ mutex_unlock(&ltc->mutex);
+}
+
+int
+nvkm_ltc_zbc_color_get(struct nvkm_ltc *ltc, int index, const u32 color[4])
+{
+ memcpy(ltc->zbc_color[index], color, sizeof(ltc->zbc_color[index]));
+ ltc->func->zbc_clear_color(ltc, index, color);
+ return index;
+}
+
+int
+nvkm_ltc_zbc_depth_get(struct nvkm_ltc *ltc, int index, const u32 depth)
+{
+ ltc->zbc_depth[index] = depth;
+ ltc->func->zbc_clear_depth(ltc, index, depth);
+ return index;
+}
+
+int
+nvkm_ltc_zbc_stencil_get(struct nvkm_ltc *ltc, int index, const u32 stencil)
+{
+ ltc->zbc_stencil[index] = stencil;
+ ltc->func->zbc_clear_stencil(ltc, index, stencil);
+ return index;
+}
+
+void
+nvkm_ltc_invalidate(struct nvkm_ltc *ltc)
+{
+ if (ltc->func->invalidate)
+ ltc->func->invalidate(ltc);
+}
+
+void
+nvkm_ltc_flush(struct nvkm_ltc *ltc)
+{
+ if (ltc->func->flush)
+ ltc->func->flush(ltc);
+}
+
+static void
+nvkm_ltc_intr(struct nvkm_subdev *subdev)
+{
+ struct nvkm_ltc *ltc = nvkm_ltc(subdev);
+ ltc->func->intr(ltc);
+}
+
+static int
+nvkm_ltc_oneinit(struct nvkm_subdev *subdev)
+{
+ struct nvkm_ltc *ltc = nvkm_ltc(subdev);
+ return ltc->func->oneinit(ltc);
+}
+
+static int
+nvkm_ltc_init(struct nvkm_subdev *subdev)
+{
+ struct nvkm_ltc *ltc = nvkm_ltc(subdev);
+ int i;
+
+ for (i = ltc->zbc_min; i <= ltc->zbc_max; i++) {
+ ltc->func->zbc_clear_color(ltc, i, ltc->zbc_color[i]);
+ ltc->func->zbc_clear_depth(ltc, i, ltc->zbc_depth[i]);
+ if (ltc->func->zbc_clear_stencil)
+ ltc->func->zbc_clear_stencil(ltc, i, ltc->zbc_stencil[i]);
+ }
+
+ ltc->func->init(ltc);
+ return 0;
+}
+
+static void *
+nvkm_ltc_dtor(struct nvkm_subdev *subdev)
+{
+ struct nvkm_ltc *ltc = nvkm_ltc(subdev);
+ nvkm_memory_unref(&ltc->tag_ram);
+ mutex_destroy(&ltc->mutex);
+ return ltc;
+}
+
+static const struct nvkm_subdev_func
+nvkm_ltc = {
+ .dtor = nvkm_ltc_dtor,
+ .oneinit = nvkm_ltc_oneinit,
+ .init = nvkm_ltc_init,
+ .intr = nvkm_ltc_intr,
+};
+
+int
+nvkm_ltc_new_(const struct nvkm_ltc_func *func, struct nvkm_device *device,
+ enum nvkm_subdev_type type, int inst, struct nvkm_ltc **pltc)
+{
+ struct nvkm_ltc *ltc;
+
+ if (!(ltc = *pltc = kzalloc(sizeof(*ltc), GFP_KERNEL)))
+ return -ENOMEM;
+
+ nvkm_subdev_ctor(&nvkm_ltc, device, type, inst, &ltc->subdev);
+ ltc->func = func;
+ mutex_init(&ltc->mutex);
+ ltc->zbc_min = 1; /* reserve 0 for disabled */
+ ltc->zbc_max = min(func->zbc, NVKM_LTC_MAX_ZBC_CNT) - 1;
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c
new file mode 100644
index 000000000..fd8aeafc8
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c
@@ -0,0 +1,256 @@
+/*
+ * 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 "priv.h"
+
+#include <core/memory.h>
+#include <subdev/fb.h>
+#include <subdev/timer.h>
+
+void
+gf100_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ nvkm_wr32(device, 0x17e8cc, start);
+ nvkm_wr32(device, 0x17e8d0, limit);
+ nvkm_wr32(device, 0x17e8c8, 0x00000004);
+}
+
+void
+gf100_ltc_cbc_wait(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ int c, s;
+ for (c = 0; c < ltc->ltc_nr; c++) {
+ for (s = 0; s < ltc->lts_nr; s++) {
+ const u32 addr = 0x1410c8 + (c * 0x2000) + (s * 0x400);
+ nvkm_msec(device, 2000,
+ if (!nvkm_rd32(device, addr))
+ break;
+ );
+ }
+ }
+}
+
+void
+gf100_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ nvkm_mask(device, 0x17ea44, 0x0000000f, i);
+ nvkm_wr32(device, 0x17ea48, color[0]);
+ nvkm_wr32(device, 0x17ea4c, color[1]);
+ nvkm_wr32(device, 0x17ea50, color[2]);
+ nvkm_wr32(device, 0x17ea54, color[3]);
+}
+
+void
+gf100_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ nvkm_mask(device, 0x17ea44, 0x0000000f, i);
+ nvkm_wr32(device, 0x17ea58, depth);
+}
+
+const struct nvkm_bitfield
+gf100_ltc_lts_intr_name[] = {
+ { 0x00000001, "IDLE_ERROR_IQ" },
+ { 0x00000002, "IDLE_ERROR_CBC" },
+ { 0x00000004, "IDLE_ERROR_TSTG" },
+ { 0x00000008, "IDLE_ERROR_DSTG" },
+ { 0x00000010, "EVICTED_CB" },
+ { 0x00000020, "ILLEGAL_COMPSTAT" },
+ { 0x00000040, "BLOCKLINEAR_CB" },
+ { 0x00000100, "ECC_SEC_ERROR" },
+ { 0x00000200, "ECC_DED_ERROR" },
+ { 0x00000400, "DEBUG" },
+ { 0x00000800, "ATOMIC_TO_Z" },
+ { 0x00001000, "ILLEGAL_ATOMIC" },
+ { 0x00002000, "BLKACTIVITY_ERR" },
+ {}
+};
+
+static void
+gf100_ltc_lts_intr(struct nvkm_ltc *ltc, int c, int s)
+{
+ struct nvkm_subdev *subdev = &ltc->subdev;
+ struct nvkm_device *device = subdev->device;
+ u32 base = 0x141000 + (c * 0x2000) + (s * 0x400);
+ u32 intr = nvkm_rd32(device, base + 0x020);
+ u32 stat = intr & 0x0000ffff;
+ char msg[128];
+
+ if (stat) {
+ nvkm_snprintbf(msg, sizeof(msg), gf100_ltc_lts_intr_name, stat);
+ nvkm_error(subdev, "LTC%d_LTS%d: %08x [%s]\n", c, s, stat, msg);
+ }
+
+ nvkm_wr32(device, base + 0x020, intr);
+}
+
+void
+gf100_ltc_intr(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ u32 mask;
+
+ mask = nvkm_rd32(device, 0x00017c);
+ while (mask) {
+ u32 s, c = __ffs(mask);
+ for (s = 0; s < ltc->lts_nr; s++)
+ gf100_ltc_lts_intr(ltc, c, s);
+ mask &= ~(1 << c);
+ }
+}
+
+void
+gf100_ltc_invalidate(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ s64 taken;
+
+ nvkm_wr32(device, 0x70004, 0x00000001);
+ taken = nvkm_wait_msec(device, 2000, 0x70004, 0x00000003, 0x00000000);
+
+ if (taken > 0)
+ nvkm_debug(&ltc->subdev, "LTC invalidate took %lld ns\n", taken);
+}
+
+void
+gf100_ltc_flush(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ s64 taken;
+
+ nvkm_wr32(device, 0x70010, 0x00000001);
+ taken = nvkm_wait_msec(device, 2000, 0x70010, 0x00000003, 0x00000000);
+
+ if (taken > 0)
+ nvkm_debug(&ltc->subdev, "LTC flush took %lld ns\n", taken);
+}
+
+/* TODO: Figure out tag memory details and drop the over-cautious allocation.
+ */
+int
+gf100_ltc_oneinit_tag_ram(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ struct nvkm_fb *fb = device->fb;
+ struct nvkm_ram *ram = fb->ram;
+ u32 bits = (nvkm_rd32(device, 0x100c80) & 0x00001000) ? 16 : 17;
+ u32 tag_size, tag_margin, tag_align;
+ int ret;
+
+ /* No VRAM, no tags for now. */
+ if (!ram) {
+ ltc->num_tags = 0;
+ goto mm_init;
+ }
+
+ /* tags for 1/4 of VRAM should be enough (8192/4 per GiB of VRAM) */
+ ltc->num_tags = (ram->size >> 17) / 4;
+ if (ltc->num_tags > (1 << bits))
+ ltc->num_tags = 1 << bits; /* we have 16/17 bits in PTE */
+ ltc->num_tags = (ltc->num_tags + 63) & ~63; /* round up to 64 */
+
+ tag_align = ltc->ltc_nr * 0x800;
+ tag_margin = (tag_align < 0x6000) ? 0x6000 : tag_align;
+
+ /* 4 part 4 sub: 0x2000 bytes for 56 tags */
+ /* 3 part 4 sub: 0x6000 bytes for 168 tags */
+ /*
+ * About 147 bytes per tag. Let's be safe and allocate x2, which makes
+ * 0x4980 bytes for 64 tags, and round up to 0x6000 bytes for 64 tags.
+ *
+ * For 4 GiB of memory we'll have 8192 tags which makes 3 MiB, < 0.1 %.
+ */
+ tag_size = (ltc->num_tags / 64) * 0x6000 + tag_margin;
+ tag_size += tag_align;
+
+ ret = nvkm_ram_get(device, NVKM_RAM_MM_NORMAL, 0x01, 12, tag_size,
+ true, true, &ltc->tag_ram);
+ if (ret) {
+ ltc->num_tags = 0;
+ } else {
+ u64 tag_base = nvkm_memory_addr(ltc->tag_ram) + tag_margin;
+
+ tag_base += tag_align - 1;
+ do_div(tag_base, tag_align);
+
+ ltc->tag_base = tag_base;
+ }
+
+mm_init:
+ nvkm_mm_fini(&fb->tags.mm);
+ return nvkm_mm_init(&fb->tags.mm, 0, 0, ltc->num_tags, 1);
+}
+
+int
+gf100_ltc_oneinit(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ const u32 parts = nvkm_rd32(device, 0x022438);
+ const u32 mask = nvkm_rd32(device, 0x022554);
+ const u32 slice = nvkm_rd32(device, 0x17e8dc) >> 28;
+ int i;
+
+ for (i = 0; i < parts; i++) {
+ if (!(mask & (1 << i)))
+ ltc->ltc_nr++;
+ }
+ ltc->lts_nr = slice;
+
+ return gf100_ltc_oneinit_tag_ram(ltc);
+}
+
+static void
+gf100_ltc_init(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
+
+ nvkm_mask(device, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
+ nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
+ nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
+ nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
+}
+
+static const struct nvkm_ltc_func
+gf100_ltc = {
+ .oneinit = gf100_ltc_oneinit,
+ .init = gf100_ltc_init,
+ .intr = gf100_ltc_intr,
+ .cbc_clear = gf100_ltc_cbc_clear,
+ .cbc_wait = gf100_ltc_cbc_wait,
+ .zbc = 16,
+ .zbc_clear_color = gf100_ltc_zbc_clear_color,
+ .zbc_clear_depth = gf100_ltc_zbc_clear_depth,
+ .invalidate = gf100_ltc_invalidate,
+ .flush = gf100_ltc_flush,
+};
+
+int
+gf100_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_ltc **pltc)
+{
+ return nvkm_ltc_new_(&gf100_ltc, device, type, inst, pltc);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c
new file mode 100644
index 000000000..94aa09244
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c
@@ -0,0 +1,57 @@
+/*
+ * 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 "priv.h"
+
+static void
+gk104_ltc_init(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
+
+ nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
+ nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
+ nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
+ nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
+}
+
+static const struct nvkm_ltc_func
+gk104_ltc = {
+ .oneinit = gf100_ltc_oneinit,
+ .init = gk104_ltc_init,
+ .intr = gf100_ltc_intr,
+ .cbc_clear = gf100_ltc_cbc_clear,
+ .cbc_wait = gf100_ltc_cbc_wait,
+ .zbc = 16,
+ .zbc_clear_color = gf100_ltc_zbc_clear_color,
+ .zbc_clear_depth = gf100_ltc_zbc_clear_depth,
+ .invalidate = gf100_ltc_invalidate,
+ .flush = gf100_ltc_flush,
+};
+
+int
+gk104_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_ltc **pltc)
+{
+ return nvkm_ltc_new_(&gk104_ltc, device, type, inst, pltc);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c
new file mode 100644
index 000000000..54d1d65d5
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm107.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright 2014 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 "priv.h"
+
+#include <subdev/fb.h>
+#include <subdev/timer.h>
+
+void
+gm107_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ nvkm_wr32(device, 0x17e270, start);
+ nvkm_wr32(device, 0x17e274, limit);
+ nvkm_mask(device, 0x17e26c, 0x00000000, 0x00000004);
+}
+
+void
+gm107_ltc_cbc_wait(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ int c, s;
+ for (c = 0; c < ltc->ltc_nr; c++) {
+ for (s = 0; s < ltc->lts_nr; s++) {
+ const u32 addr = 0x14046c + (c * 0x2000) + (s * 0x200);
+ nvkm_wait_msec(device, 2000, addr,
+ 0x00000004, 0x00000000);
+ }
+ }
+}
+
+void
+gm107_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ nvkm_mask(device, 0x17e338, 0x0000000f, i);
+ nvkm_wr32(device, 0x17e33c, color[0]);
+ nvkm_wr32(device, 0x17e340, color[1]);
+ nvkm_wr32(device, 0x17e344, color[2]);
+ nvkm_wr32(device, 0x17e348, color[3]);
+}
+
+void
+gm107_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ nvkm_mask(device, 0x17e338, 0x0000000f, i);
+ nvkm_wr32(device, 0x17e34c, depth);
+}
+
+void
+gm107_ltc_intr_lts(struct nvkm_ltc *ltc, int c, int s)
+{
+ struct nvkm_subdev *subdev = &ltc->subdev;
+ struct nvkm_device *device = subdev->device;
+ u32 base = 0x140400 + (c * 0x2000) + (s * 0x200);
+ u32 intr = nvkm_rd32(device, base + 0x00c);
+ u16 stat = intr & 0x0000ffff;
+ char msg[128];
+
+ if (stat) {
+ nvkm_snprintbf(msg, sizeof(msg), gf100_ltc_lts_intr_name, stat);
+ nvkm_error(subdev, "LTC%d_LTS%d: %08x [%s]\n", c, s, intr, msg);
+ }
+
+ nvkm_wr32(device, base + 0x00c, intr);
+}
+
+void
+gm107_ltc_intr(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ u32 mask;
+
+ mask = nvkm_rd32(device, 0x00017c);
+ while (mask) {
+ u32 s, c = __ffs(mask);
+ for (s = 0; s < ltc->lts_nr; s++)
+ gm107_ltc_intr_lts(ltc, c, s);
+ mask &= ~(1 << c);
+ }
+}
+
+static int
+gm107_ltc_oneinit(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ const u32 parts = nvkm_rd32(device, 0x022438);
+ const u32 mask = nvkm_rd32(device, 0x021c14);
+ const u32 slice = nvkm_rd32(device, 0x17e280) >> 28;
+ int i;
+
+ for (i = 0; i < parts; i++) {
+ if (!(mask & (1 << i)))
+ ltc->ltc_nr++;
+ }
+ ltc->lts_nr = slice;
+
+ return gf100_ltc_oneinit_tag_ram(ltc);
+}
+
+static void
+gm107_ltc_init(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
+
+ nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);
+ nvkm_wr32(device, 0x17e278, ltc->tag_base);
+ nvkm_mask(device, 0x17e264, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
+}
+
+static const struct nvkm_ltc_func
+gm107_ltc = {
+ .oneinit = gm107_ltc_oneinit,
+ .init = gm107_ltc_init,
+ .intr = gm107_ltc_intr,
+ .cbc_clear = gm107_ltc_cbc_clear,
+ .cbc_wait = gm107_ltc_cbc_wait,
+ .zbc = 16,
+ .zbc_clear_color = gm107_ltc_zbc_clear_color,
+ .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
+ .invalidate = gf100_ltc_invalidate,
+ .flush = gf100_ltc_flush,
+};
+
+int
+gm107_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_ltc **pltc)
+{
+ return nvkm_ltc_new_(&gm107_ltc, device, type, inst, pltc);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm200.c
new file mode 100644
index 000000000..8cfdbbdd8
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm200.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2015 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 <bskeggs@redhat.com>
+ */
+#include "priv.h"
+
+#include <subdev/fb.h>
+#include <subdev/timer.h>
+
+static int
+gm200_ltc_oneinit(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+
+ ltc->ltc_nr = nvkm_rd32(device, 0x12006c);
+ ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;
+
+ return gf100_ltc_oneinit_tag_ram(ltc);
+}
+static void
+gm200_ltc_init(struct nvkm_ltc *ltc)
+{
+ nvkm_wr32(ltc->subdev.device, 0x17e278, ltc->tag_base);
+}
+
+static const struct nvkm_ltc_func
+gm200_ltc = {
+ .oneinit = gm200_ltc_oneinit,
+ .init = gm200_ltc_init,
+ .intr = gm107_ltc_intr,
+ .cbc_clear = gm107_ltc_cbc_clear,
+ .cbc_wait = gm107_ltc_cbc_wait,
+ .zbc = 16,
+ .zbc_clear_color = gm107_ltc_zbc_clear_color,
+ .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
+ .invalidate = gf100_ltc_invalidate,
+ .flush = gf100_ltc_flush,
+};
+
+int
+gm200_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_ltc **pltc)
+{
+ return nvkm_ltc_new_(&gm200_ltc, device, type, inst, pltc);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp100.c
new file mode 100644
index 000000000..a4a6cd9b4
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp100.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2016 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 "priv.h"
+
+void
+gp100_ltc_intr(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ u32 mask;
+
+ mask = nvkm_rd32(device, 0x0001c0);
+ while (mask) {
+ u32 s, c = __ffs(mask);
+ for (s = 0; s < ltc->lts_nr; s++)
+ gm107_ltc_intr_lts(ltc, c, s);
+ mask &= ~(1 << c);
+ }
+}
+
+int
+gp100_ltc_oneinit(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ ltc->ltc_nr = nvkm_rd32(device, 0x12006c);
+ ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;
+ /*XXX: tagram allocation - TBD */
+ return 0;
+}
+
+void
+gp100_ltc_init(struct nvkm_ltc *ltc)
+{
+ /*XXX: PMU LS call to setup tagram address */
+}
+
+static const struct nvkm_ltc_func
+gp100_ltc = {
+ .oneinit = gp100_ltc_oneinit,
+ .init = gp100_ltc_init,
+ .intr = gp100_ltc_intr,
+ .cbc_clear = gm107_ltc_cbc_clear,
+ .cbc_wait = gm107_ltc_cbc_wait,
+ .zbc = 16,
+ .zbc_clear_color = gm107_ltc_zbc_clear_color,
+ .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
+ .invalidate = gf100_ltc_invalidate,
+ .flush = gf100_ltc_flush,
+};
+
+int
+gp100_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_ltc **pltc)
+{
+ return nvkm_ltc_new_(&gp100_ltc, device, type, inst, pltc);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp102.c
new file mode 100644
index 000000000..ff05d617e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp102.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2018 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.
+ */
+#include "priv.h"
+
+void
+gp102_ltc_zbc_clear_stencil(struct nvkm_ltc *ltc, int i, const u32 stencil)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ nvkm_mask(device, 0x17e338, 0x0000000f, i);
+ nvkm_wr32(device, 0x17e204, stencil);
+}
+
+static const struct nvkm_ltc_func
+gp102_ltc = {
+ .oneinit = gp100_ltc_oneinit,
+ .init = gp100_ltc_init,
+ .intr = gp100_ltc_intr,
+ .cbc_clear = gm107_ltc_cbc_clear,
+ .cbc_wait = gm107_ltc_cbc_wait,
+ .zbc = 16,
+ .zbc_clear_color = gm107_ltc_zbc_clear_color,
+ .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
+ .zbc_clear_stencil = gp102_ltc_zbc_clear_stencil,
+ .invalidate = gf100_ltc_invalidate,
+ .flush = gf100_ltc_flush,
+};
+
+int
+gp102_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_ltc **pltc)
+{
+ return nvkm_ltc_new_(&gp102_ltc, device, type, inst, pltc);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c
new file mode 100644
index 000000000..dfebd796c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2019 NVIDIA Corporation.
+ *
+ * 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: Thierry Reding
+ */
+
+#include "priv.h"
+
+static void
+gp10b_ltc_init(struct nvkm_ltc *ltc)
+{
+ struct nvkm_device *device = ltc->subdev.device;
+ struct iommu_fwspec *spec;
+
+ nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);
+ nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
+ nvkm_wr32(device, 0x100800, ltc->ltc_nr);
+
+ spec = dev_iommu_fwspec_get(device->dev);
+ if (spec) {
+ u32 sid = spec->ids[0] & 0xffff;
+
+ /* stream ID */
+ nvkm_wr32(device, 0x160000, sid << 2);
+ }
+}
+
+static const struct nvkm_ltc_func
+gp10b_ltc = {
+ .oneinit = gp100_ltc_oneinit,
+ .init = gp10b_ltc_init,
+ .intr = gp100_ltc_intr,
+ .cbc_clear = gm107_ltc_cbc_clear,
+ .cbc_wait = gm107_ltc_cbc_wait,
+ .zbc = 16,
+ .zbc_clear_color = gm107_ltc_zbc_clear_color,
+ .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
+ .zbc_clear_stencil = gp102_ltc_zbc_clear_stencil,
+ .invalidate = gf100_ltc_invalidate,
+ .flush = gf100_ltc_flush,
+};
+
+int
+gp10b_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_ltc **pltc)
+{
+ return nvkm_ltc_new_(&gp10b_ltc, device, type, inst, pltc);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h
new file mode 100644
index 000000000..2bebe1390
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_LTC_PRIV_H__
+#define __NVKM_LTC_PRIV_H__
+#define nvkm_ltc(p) container_of((p), struct nvkm_ltc, subdev)
+#include <subdev/ltc.h>
+#include <core/enum.h>
+
+int nvkm_ltc_new_(const struct nvkm_ltc_func *, struct nvkm_device *, enum nvkm_subdev_type, int,
+ struct nvkm_ltc **);
+
+struct nvkm_ltc_func {
+ int (*oneinit)(struct nvkm_ltc *);
+ void (*init)(struct nvkm_ltc *);
+ void (*intr)(struct nvkm_ltc *);
+
+ void (*cbc_clear)(struct nvkm_ltc *, u32 start, u32 limit);
+ void (*cbc_wait)(struct nvkm_ltc *);
+
+ int zbc;
+ void (*zbc_clear_color)(struct nvkm_ltc *, int, const u32[4]);
+ void (*zbc_clear_depth)(struct nvkm_ltc *, int, const u32);
+ void (*zbc_clear_stencil)(struct nvkm_ltc *, int, const u32);
+
+ void (*invalidate)(struct nvkm_ltc *);
+ void (*flush)(struct nvkm_ltc *);
+};
+
+int gf100_ltc_oneinit(struct nvkm_ltc *);
+int gf100_ltc_oneinit_tag_ram(struct nvkm_ltc *);
+void gf100_ltc_intr(struct nvkm_ltc *);
+void gf100_ltc_cbc_clear(struct nvkm_ltc *, u32, u32);
+void gf100_ltc_cbc_wait(struct nvkm_ltc *);
+void gf100_ltc_zbc_clear_color(struct nvkm_ltc *, int, const u32[4]);
+void gf100_ltc_zbc_clear_depth(struct nvkm_ltc *, int, const u32);
+void gf100_ltc_invalidate(struct nvkm_ltc *);
+void gf100_ltc_flush(struct nvkm_ltc *);
+extern const struct nvkm_bitfield gf100_ltc_lts_intr_name[];
+
+void gm107_ltc_intr(struct nvkm_ltc *);
+void gm107_ltc_intr_lts(struct nvkm_ltc *, int ltc, int lts);
+void gm107_ltc_cbc_clear(struct nvkm_ltc *, u32, u32);
+void gm107_ltc_cbc_wait(struct nvkm_ltc *);
+void gm107_ltc_zbc_clear_color(struct nvkm_ltc *, int, const u32[4]);
+void gm107_ltc_zbc_clear_depth(struct nvkm_ltc *, int, const u32);
+
+int gp100_ltc_oneinit(struct nvkm_ltc *);
+void gp100_ltc_init(struct nvkm_ltc *);
+void gp100_ltc_intr(struct nvkm_ltc *);
+
+void gp102_ltc_zbc_clear_stencil(struct nvkm_ltc *, int, const u32);
+#endif