/*
* Copyright 2023 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 <rm/gr.h>
#include <core/memory.h>
#include <subdev/gsp.h>
#include <subdev/mmu/vmm.h>
#include <engine/fifo/priv.h>
#include <engine/gr/priv.h>
#include <nvif/if900d.h>
#include <nvhw/drf.h>
#include "nvrm/gr.h"
#include "nvrm/vmm.h"
#define r535_gr(p) container_of((p), struct r535_gr, base)
static void *
r535_gr_chan_dtor(struct nvkm_object *object)
{
struct r535_gr_chan *grc = container_of(object, typeof(*grc), object);
struct r535_gr *gr = grc->gr;
for (int i = 0 ; i < gr->ctxbuf_nr; i++) {
nvkm_vmm_put(grc->vmm, &grc->vma[i]);
nvkm_memory_unref(&grc->mem[i]);
}
nvkm_vmm_unref(&grc->vmm);
return grc;
}
static const struct nvkm_object_func
r535_gr_chan = {
.dtor = r535_gr_chan_dtor,
};
int
r535_gr_promote_ctx(struct r535_gr *gr, bool golden, struct nvkm_vmm *vmm,
struct nvkm_memory **pmem, struct nvkm_vma **pvma,
struct nvkm_gsp_object *chan)
{
struct nvkm_subdev *subdev = &gr->base.engine.subdev;
struct nvkm_device *device = subdev->device;
NV2080_CTRL_GPU_PROMOTE_CTX_PARAMS *ctrl;
ctrl = nvkm_gsp_rm_ctrl_get(&vmm->rm.device.subdevice,
NV2080_CTRL_CMD_GPU_PROMOTE_CTX, sizeof (*ctrl));
if (WARN_ON(IS_ERR(ctrl)))
return PTR_ERR(ctrl);
ctrl->engineType = 1 ;
ctrl->hChanClient = vmm->rm.client.object.handle;
ctrl->hObject = chan->handle;
for (int i = 0 ; i < gr->ctxbuf_nr; i++) {
NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ENTRY *entry =
&ctrl->promoteEntry[ctrl->entryCount];
const bool alloc = golden || !gr->ctxbuf[i].global;
int ret;
entry->bufferId = gr->ctxbuf[i].bufferId;
entry->bInitialize = gr->ctxbuf[i].init && alloc;
if (alloc) {
ret = nvkm_memory_new(device, gr->ctxbuf[i].init ?
NVKM_MEM_TARGET_INST : NVKM_MEM_TARGET_INST_SR_LOST,
gr->ctxbuf[i].size, 1 << gr->ctxbuf[i].page,
gr->ctxbuf[i].init, &pmem[i]);
if (WARN_ON(ret))
return ret;
if (gr->ctxbuf[i].bufferId ==
NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ID_PRIV_ACCESS_MAP)
entry->bNonmapped = 1 ;
} else {
if (gr->ctxbuf[i].bufferId ==
NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ID_UNRESTRICTED_PRIV_ACCESS_MAP)
continue ;
pmem[i] = nvkm_memory_ref(gr->ctxbuf_mem[i]);
}
if (!entry->bNonmapped) {
struct gf100_vmm_map_v0 args = {
.priv = 1 ,
.ro = gr->ctxbuf[i].ro,
};
mutex_lock(&vmm->mutex.vmm);
ret = nvkm_vmm_get_locked(vmm, false , true , false , 0 , gr->ctxbuf[i].align,
nvkm_memory_size(pmem[i]), &pvma[i]);
mutex_unlock(&vmm->mutex.vmm);
if (ret)
return ret;
ret = nvkm_memory_map(pmem[i], 0 , vmm, pvma[i], &args, sizeof (args));
if (ret)
return ret;
entry->gpuVirtAddr = pvma[i]->addr;
}
if (entry->bInitialize) {
entry->gpuPhysAddr = nvkm_memory_addr(pmem[i]);
entry->size = gr->ctxbuf[i].size;
entry->physAttr = 4 ;
}
nvkm_debug(subdev,
"promote %02d: pa %016llx/%08x sz %016llx va %016llx init:%d nm:%d\n" ,
entry->bufferId, entry->gpuPhysAddr, entry->physAttr, entry->size,
entry->gpuVirtAddr, entry->bInitialize, entry->bNonmapped);
ctrl->entryCount++;
}
return nvkm_gsp_rm_ctrl_wr(&vmm->rm.device.subdevice, ctrl);
}
int
r535_gr_chan_new(struct nvkm_gr *base, struct nvkm_chan *chan, const struct nvkm_oclass *oclass,
struct nvkm_object **pobject)
{
struct r535_gr *gr = r535_gr(base);
struct r535_gr_chan *grc;
int ret;
if (!(grc = kzalloc(sizeof (*grc), GFP_KERNEL)))
return -ENOMEM;
nvkm_object_ctor(&r535_gr_chan, oclass, &grc->object);
grc->gr = gr;
grc->vmm = nvkm_vmm_ref(chan->vmm);
grc->chan = chan;
*pobject = &grc->object;
ret = r535_gr_promote_ctx(gr, false , grc->vmm, grc->mem, grc->vma, &chan->rm.object);
if (ret)
return ret;
return 0 ;
}
u64
r535_gr_units(struct nvkm_gr *gr)
{
struct nvkm_gsp *gsp = gr->engine.subdev.device->gsp;
return (gsp->gr.tpcs << 8 ) | gsp->gr.gpcs;
}
void
r535_gr_get_ctxbuf_info(struct r535_gr *gr, int i,
struct NV2080_CTRL_INTERNAL_ENGINE_CONTEXT_BUFFER_INFO *info)
{
struct nvkm_subdev *subdev = &gr->base.engine.subdev;
static const struct {
u32 id0; /* NV0080_CTRL_FIFO_GET_ENGINE_CONTEXT_PROPERTIES_ENGINE_ID */
u32 id1; /* NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ID */
bool global;
bool init;
bool ro;
} map[] = {
#define _A(n,N,G,I,R) { .id0 = NV0080_CTRL_FIFO_GET_ENGINE_CONTEXT_PROPERTIES_ENGINE_ID_## n, \
.id1 = NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ID_## N, \
.global = (G), .init = (I), .ro = (R) }
#define _B(N,G,I,R) _A(GRAPHICS_## N, N, (G), (I), (R))
/* global init ro */
_A( GRAPHICS, MAIN, false , true , false ),
_B( PATCH, false , true , false ),
_A( GRAPHICS_BUNDLE_CB, BUFFER_BUNDLE_CB, true , false , false ),
_B( PAGEPOOL, true , false , false ),
_B( ATTRIBUTE_CB, true , false , false ),
_B( RTV_CB_GLOBAL, true , false , false ),
_B( FECS_EVENT, true , true , false ),
_B( PRIV_ACCESS_MAP, true , true , true ),
#undef _B
#undef _A
};
u32 size = info->size;
u8 align, page;
int id;
for (id = 0 ; id < ARRAY_SIZE(map); id++) {
if (map[id].id0 == i)
break ;
}
nvkm_debug(subdev, "%02x: size:0x%08x %s\n" , i,
size, (id < ARRAY_SIZE(map)) ? "*" : "" );
if (id >= ARRAY_SIZE(map))
return ;
if (map[id].id1 == NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ID_MAIN)
size = ALIGN(size, 0 x1000) + 64 * 0 x1000; /* per-subctx headers */
if (size >= 1 << 21 ) page = 21 ;
else if (size >= 1 << 16 ) page = 16 ;
else page = 12 ;
if (map[id].id1 == NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ID_ATTRIBUTE_CB)
align = order_base_2(size);
else
align = page;
if (WARN_ON(gr->ctxbuf_nr == ARRAY_SIZE(gr->ctxbuf)))
return ;
gr->ctxbuf[gr->ctxbuf_nr].bufferId = map[id].id1;
gr->ctxbuf[gr->ctxbuf_nr].size = size;
gr->ctxbuf[gr->ctxbuf_nr].page = page;
gr->ctxbuf[gr->ctxbuf_nr].align = align;
gr->ctxbuf[gr->ctxbuf_nr].global = map[id].global;
gr->ctxbuf[gr->ctxbuf_nr].init = map[id].init;
gr->ctxbuf[gr->ctxbuf_nr].ro = map[id].ro;
gr->ctxbuf_nr++;
if (map[id].id1 == NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ID_PRIV_ACCESS_MAP) {
if (WARN_ON(gr->ctxbuf_nr == ARRAY_SIZE(gr->ctxbuf)))
return ;
gr->ctxbuf[gr->ctxbuf_nr] = gr->ctxbuf[gr->ctxbuf_nr - 1 ];
gr->ctxbuf[gr->ctxbuf_nr].bufferId =
NV2080_CTRL_GPU_PROMOTE_CTX_BUFFER_ID_UNRESTRICTED_PRIV_ACCESS_MAP;
gr->ctxbuf_nr++;
}
}
static int
r535_gr_get_ctxbufs_info(struct r535_gr *gr)
{
NV2080_CTRL_INTERNAL_STATIC_GR_GET_CONTEXT_BUFFERS_INFO_PARAMS *info;
struct nvkm_subdev *subdev = &gr->base.engine.subdev;
struct nvkm_gsp *gsp = subdev->device->gsp;
info = nvkm_gsp_rm_ctrl_rd(&gsp->internal.device.subdevice,
NV2080_CTRL_CMD_INTERNAL_STATIC_KGR_GET_CONTEXT_BUFFERS_INFO,
sizeof (*info));
if (WARN_ON(IS_ERR(info)))
return PTR_ERR(info);
for (int i = 0 ; i < ARRAY_SIZE(info->engineContextBuffersInfo[0 ].engine); i++)
r535_gr_get_ctxbuf_info(gr, i, &info->engineContextBuffersInfo[0 ].engine[i]);
nvkm_gsp_rm_ctrl_done(&gsp->internal.device.subdevice, info);
return 0 ;
}
int
r535_gr_oneinit(struct nvkm_gr *base)
{
struct r535_gr *gr = container_of(base, typeof(*gr), base);
struct nvkm_subdev *subdev = &gr->base.engine.subdev;
struct nvkm_device *device = subdev->device;
struct nvkm_gsp *gsp = device->gsp;
struct nvkm_rm *rm = gsp->rm;
struct {
struct nvkm_memory *inst;
struct nvkm_vmm *vmm;
struct nvkm_gsp_object chan;
struct nvkm_vma *vma[R515_GR_MAX_CTXBUFS];
} golden = {};
struct nvkm_gsp_object threed;
int ret;
/* Allocate a channel to use for golden context init. */
ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0 x12000, 0 , true , &golden.inst);
if (ret)
goto done;
ret = nvkm_vmm_new(device, 0 x1000, 0 , NULL, 0 , NULL, "grGoldenVmm" , &golden.vmm);
if (ret)
goto done;
ret = r535_mmu_vaspace_new(golden.vmm, NVKM_RM_VASPACE, false );
if (ret)
goto done;
ret = rm->api->fifo->chan.alloc(&golden.vmm->rm.device, NVKM_RM_CHAN(0 ),
1 , 0 , true , rm->api->fifo->rsvd_chids,
nvkm_memory_addr(golden.inst),
nvkm_memory_addr(golden.inst) + 0 x1000,
nvkm_memory_addr(golden.inst) + 0 x2000,
golden.vmm, 0 , 0 x1000, &golden.chan);
if (ret)
goto done;
/* Fetch context buffer info from RM and allocate each of them here to use
* during golden context init ( or later as a global context buffer ) .
*
* Also build the information that ' ll be used to create channel contexts .
*/
ret = rm->api->gr->get_ctxbufs_info(gr);
if (ret)
goto done;
/* Promote golden context to RM. */
ret = r535_gr_promote_ctx(gr, true , golden.vmm, gr->ctxbuf_mem, golden.vma, &golden.chan);
if (ret)
goto done;
/* Allocate 3D class on channel to trigger golden context init in RM. */
ret = nvkm_gsp_rm_alloc(&golden.chan, NVKM_RM_THREED, rm->gpu->gr.class .threed, 0 , &threed);
if (ret)
goto done;
/* There's no need to keep the golden channel around, as RM caches the context. */
nvkm_gsp_rm_free(&threed);
done:
nvkm_gsp_rm_free(&golden.chan);
for (int i = gr->ctxbuf_nr - 1 ; i >= 0 ; i--)
nvkm_vmm_put(golden.vmm, &golden.vma[i]);
nvkm_vmm_unref(&golden.vmm);
nvkm_memory_unref(&golden.inst);
return ret;
}
void *
r535_gr_dtor(struct nvkm_gr *base)
{
struct r535_gr *gr = r535_gr(base);
while (gr->ctxbuf_nr)
nvkm_memory_unref(&gr->ctxbuf_mem[--gr->ctxbuf_nr]);
kfree(gr->base.func);
return gr;
}
const struct nvkm_rm_api_gr
r535_gr = {
.get_ctxbufs_info = r535_gr_get_ctxbufs_info,
};
Messung V0.5 in Prozent C=98 H=86 G=91
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-09)
¤
*© Formatika GbR, Deutschland