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third_party_mesa3d/src/gallium/drivers/panfrost/pan_resource.c
Marek Olšák 8c9b9aac7d gallium: change comments to remove 'state tracker' 
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4902>
2020-05-13 13:47:27 -04:00

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/*
* Copyright (C) 2008 VMware, Inc.
* Copyright (C) 2014 Broadcom
* Copyright (C) 2018-2019 Alyssa Rosenzweig
* Copyright (C) 2019 Collabora, Ltd.
*
* 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 (including the next
* paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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 (Collabora):
* Tomeu Vizoso <tomeu.vizoso@collabora.com>
* Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
*
*/
#include <xf86drm.h>
#include <fcntl.h>
#include "drm-uapi/drm_fourcc.h"
#include "frontend/winsys_handle.h"
#include "util/format/u_format.h"
#include "util/u_memory.h"
#include "util/u_surface.h"
#include "util/u_transfer.h"
#include "util/u_transfer_helper.h"
#include "util/u_gen_mipmap.h"
#include "pan_bo.h"
#include "pan_context.h"
#include "pan_screen.h"
#include "pan_resource.h"
#include "pan_util.h"
#include "pan_tiling.h"
#include "pandecode/decode.h"
#include "panfrost-quirks.h"
/* Wrapper around panfrost_bo_create that handles pandecode */
struct panfrost_bo *
pan_bo_create(struct panfrost_device *dev, size_t size, uint32_t flags)
{
struct panfrost_bo *bo = panfrost_bo_create(dev, size, flags);
if (pan_debug & (PAN_DBG_TRACE | PAN_DBG_SYNC)) {
if (flags & PAN_BO_INVISIBLE)
pandecode_inject_mmap(bo->gpu, NULL, bo->size, NULL);
else if (!(flags & PAN_BO_DELAY_MMAP))
pandecode_inject_mmap(bo->gpu, bo->cpu, bo->size, NULL);
}
return bo;
}
void
panfrost_resource_reset_damage(struct panfrost_resource *pres)
{
/* We set the damage extent to the full resource size but keep the
* damage box empty so that the FB content is reloaded by default.
*/
memset(&pres->damage, 0, sizeof(pres->damage));
pres->damage.extent.maxx = pres->base.width0;
pres->damage.extent.maxy = pres->base.height0;
}
static struct pipe_resource *
panfrost_resource_from_handle(struct pipe_screen *pscreen,
const struct pipe_resource *templat,
struct winsys_handle *whandle,
unsigned usage)
{
struct panfrost_device *dev = pan_device(pscreen);
struct panfrost_resource *rsc;
struct pipe_resource *prsc;
assert(whandle->type == WINSYS_HANDLE_TYPE_FD);
rsc = rzalloc(pscreen, struct panfrost_resource);
if (!rsc)
return NULL;
prsc = &rsc->base;
*prsc = *templat;
pipe_reference_init(&prsc->reference, 1);
prsc->screen = pscreen;
rsc->bo = panfrost_bo_import(dev, whandle->handle);
rsc->internal_format = templat->format;
rsc->layout = MALI_TEXTURE_LINEAR;
rsc->slices[0].stride = whandle->stride;
rsc->slices[0].offset = whandle->offset;
rsc->slices[0].initialized = true;
panfrost_resource_reset_damage(rsc);
if (dev->quirks & IS_BIFROST &&
templat->bind & PIPE_BIND_RENDER_TARGET) {
unsigned size = panfrost_compute_checksum_size(
&rsc->slices[0], templat->width0, templat->height0);
rsc->slices[0].checksum_bo = pan_bo_create(dev, size, 0);
rsc->checksummed = true;
}
if (dev->ro) {
rsc->scanout =
renderonly_create_gpu_import_for_resource(prsc, dev->ro, NULL);
/* failure is expected in some cases.. */
}
return prsc;
}
static bool
panfrost_resource_get_handle(struct pipe_screen *pscreen,
struct pipe_context *ctx,
struct pipe_resource *pt,
struct winsys_handle *handle,
unsigned usage)
{
struct panfrost_device *dev = pan_device(pscreen);
struct panfrost_resource *rsrc = (struct panfrost_resource *) pt;
struct renderonly_scanout *scanout = rsrc->scanout;
handle->modifier = DRM_FORMAT_MOD_INVALID;
if (handle->type == WINSYS_HANDLE_TYPE_SHARED) {
return false;
} else if (handle->type == WINSYS_HANDLE_TYPE_KMS) {
if (renderonly_get_handle(scanout, handle))
return true;
handle->handle = rsrc->bo->gem_handle;
handle->stride = rsrc->slices[0].stride;
handle->offset = rsrc->slices[0].offset;
return TRUE;
} else if (handle->type == WINSYS_HANDLE_TYPE_FD) {
if (scanout) {
struct drm_prime_handle args = {
.handle = scanout->handle,
.flags = DRM_CLOEXEC,
};
int ret = drmIoctl(dev->ro->kms_fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args);
if (ret == -1)
return false;
handle->stride = scanout->stride;
handle->handle = args.fd;
return true;
} else {
int fd = panfrost_bo_export(rsrc->bo);
if (fd < 0)
return false;
handle->handle = fd;
handle->stride = rsrc->slices[0].stride;
handle->offset = rsrc->slices[0].offset;
return true;
}
}
return false;
}
static void
panfrost_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
{
//DBG("TODO %s\n", __func__);
}
static struct pipe_surface *
panfrost_create_surface(struct pipe_context *pipe,
struct pipe_resource *pt,
const struct pipe_surface *surf_tmpl)
{
struct pipe_surface *ps = NULL;
ps = rzalloc(pipe, struct pipe_surface);
if (ps) {
pipe_reference_init(&ps->reference, 1);
pipe_resource_reference(&ps->texture, pt);
ps->context = pipe;
ps->format = surf_tmpl->format;
if (pt->target != PIPE_BUFFER) {
assert(surf_tmpl->u.tex.level <= pt->last_level);
ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
ps->u.tex.level = surf_tmpl->u.tex.level;
ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
} else {
/* setting width as number of elements should get us correct renderbuffer width */
ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
ps->height = pt->height0;
ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
assert(ps->u.buf.first_element <= ps->u.buf.last_element);
assert(ps->u.buf.last_element < ps->width);
}
}
return ps;
}
static void
panfrost_surface_destroy(struct pipe_context *pipe,
struct pipe_surface *surf)
{
assert(surf->texture);
pipe_resource_reference(&surf->texture, NULL);
ralloc_free(surf);
}
static struct pipe_resource *
panfrost_create_scanout_res(struct pipe_screen *screen,
const struct pipe_resource *template)
{
struct panfrost_device *dev = pan_device(screen);
struct pipe_resource scanout_templat = *template;
struct renderonly_scanout *scanout;
struct winsys_handle handle;
struct pipe_resource *res;
scanout = renderonly_scanout_for_resource(&scanout_templat,
dev->ro, &handle);
if (!scanout)
return NULL;
assert(handle.type == WINSYS_HANDLE_TYPE_FD);
/* TODO: handle modifiers? */
res = screen->resource_from_handle(screen, template, &handle,
PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE);
close(handle.handle);
if (!res)
return NULL;
struct panfrost_resource *pres = pan_resource(res);
pres->scanout = scanout;
return res;
}
/* Setup the mip tree given a particular layout, possibly with checksumming */
static void
panfrost_setup_slices(struct panfrost_resource *pres, size_t *bo_size)
{
struct pipe_resource *res = &pres->base;
unsigned width = res->width0;
unsigned height = res->height0;
unsigned depth = res->depth0;
unsigned bytes_per_pixel = util_format_get_blocksize(res->format);
assert(depth > 0);
/* Tiled operates blockwise; linear is packed. Also, anything
* we render to has to be tile-aligned. Maybe not strictly
* necessary, but we're not *that* pressed for memory and it
* makes code a lot simpler */
bool renderable = res->bind &
(PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL);
bool afbc = pres->layout == MALI_TEXTURE_AFBC;
bool tiled = pres->layout == MALI_TEXTURE_TILED;
bool should_align = renderable || tiled;
/* We don't know how to specify a 2D stride for 3D textures */
bool can_align_stride =
res->target != PIPE_TEXTURE_3D;
should_align &= can_align_stride;
unsigned offset = 0;
unsigned size_2d = 0;
for (unsigned l = 0; l <= res->last_level; ++l) {
struct panfrost_slice *slice = &pres->slices[l];
unsigned effective_width = width;
unsigned effective_height = height;
unsigned effective_depth = depth;
if (should_align) {
effective_width = ALIGN_POT(effective_width, 16);
effective_height = ALIGN_POT(effective_height, 16);
/* We don't need to align depth */
}
/* Align levels to cache-line as a performance improvement for
* linear/tiled and as a requirement for AFBC */
offset = ALIGN_POT(offset, 64);
slice->offset = offset;
/* Compute the would-be stride */
unsigned stride = bytes_per_pixel * effective_width;
if (util_format_is_compressed(res->format))
stride /= 4;
/* ..but cache-line align it for performance */
if (can_align_stride && pres->layout == MALI_TEXTURE_LINEAR)
stride = ALIGN_POT(stride, 64);
slice->stride = stride;
unsigned slice_one_size = slice->stride * effective_height;
unsigned slice_full_size = slice_one_size * effective_depth;
slice->size0 = slice_one_size;
/* Report 2D size for 3D texturing */
if (l == 0)
size_2d = slice_one_size;
/* Compute AFBC sizes if necessary */
if (afbc) {
slice->header_size =
panfrost_afbc_header_size(width, height);
offset += slice->header_size;
}
offset += slice_full_size;
/* Add a checksum region if necessary */
if (pres->checksummed) {
slice->checksum_offset = offset;
unsigned size = panfrost_compute_checksum_size(
slice, width, height);
offset += size;
}
width = u_minify(width, 1);
height = u_minify(height, 1);
depth = u_minify(depth, 1);
}
assert(res->array_size);
if (res->target != PIPE_TEXTURE_3D) {
/* Arrays and cubemaps have the entire miptree duplicated */
pres->cubemap_stride = ALIGN_POT(offset, 64);
*bo_size = ALIGN_POT(pres->cubemap_stride * res->array_size, 4096);
} else {
/* 3D strides across the 2D layers */
assert(res->array_size == 1);
pres->cubemap_stride = size_2d;
*bo_size = ALIGN_POT(offset, 4096);
}
}
static void
panfrost_resource_create_bo(struct panfrost_device *dev, struct panfrost_resource *pres)
{
struct pipe_resource *res = &pres->base;
/* Based on the usage, figure out what storing will be used. There are
* various tradeoffs:
*
* Linear: the basic format, bad for memory bandwidth, bad for cache
* use. Zero-copy, though. Renderable.
*
* Tiled: Not compressed, but cache-optimized. Expensive to write into
* (due to software tiling), but cheap to sample from. Ideal for most
* textures.
*
* AFBC: Compressed and renderable (so always desirable for non-scanout
* rendertargets). Cheap to sample from. The format is black box, so we
* can't read/write from software.
*
* Tiling textures is almost always faster, unless we only use it once.
* Only a few types of resources can be tiled, ensure the bind is only
* (a combination of) one of the following */
const unsigned valid_binding =
PIPE_BIND_DEPTH_STENCIL |
PIPE_BIND_RENDER_TARGET |
PIPE_BIND_BLENDABLE |
PIPE_BIND_SAMPLER_VIEW |
PIPE_BIND_DISPLAY_TARGET;
unsigned bpp = util_format_get_blocksizebits(res->format);
bool is_2d = (res->target == PIPE_TEXTURE_2D);
bool is_sane_bpp = bpp == 8 || bpp == 16 || bpp == 32 || bpp == 64 || bpp == 128;
bool should_tile = (res->usage != PIPE_USAGE_STREAM);
bool must_tile = (res->bind & PIPE_BIND_DEPTH_STENCIL) && (dev->quirks & MIDGARD_SFBD);
bool can_tile = is_2d && is_sane_bpp && ((res->bind & ~valid_binding) == 0);
/* FBOs we would like to checksum, if at all possible */
bool can_checksum = !(res->bind & ~valid_binding);
bool should_checksum = res->bind & PIPE_BIND_RENDER_TARGET;
pres->checksummed = can_checksum && should_checksum;
/* Set the layout appropriately */
assert(!(must_tile && !can_tile)); /* must_tile => can_tile */
pres->layout = ((can_tile && should_tile) || must_tile) ? MALI_TEXTURE_TILED : MALI_TEXTURE_LINEAR;
size_t bo_size;
panfrost_setup_slices(pres, &bo_size);
/* We create a BO immediately but don't bother mapping, since we don't
* care to map e.g. FBOs which the CPU probably won't touch */
pres->bo = pan_bo_create(dev, bo_size, PAN_BO_DELAY_MMAP);
}
void
panfrost_resource_set_damage_region(struct pipe_screen *screen,
struct pipe_resource *res,
unsigned int nrects,
const struct pipe_box *rects)
{
struct panfrost_resource *pres = pan_resource(res);
struct pipe_box *damage_rect = &pres->damage.biggest_rect;
struct pipe_scissor_state *damage_extent = &pres->damage.extent;
unsigned int i;
if (!nrects) {
panfrost_resource_reset_damage(pres);
return;
}
/* We keep track of 2 different things here:
* 1 the damage extent: the quad including all damage regions. Will be
* used restrict the rendering area
* 2 the biggest damage rectangle: when there are more than one damage
* rect we keep the biggest one and will generate 4 wallpaper quads
* out of it (see panfrost_draw_wallpaper() for more details). We
* might want to do something smarter at some point.
*
* _________________________________
* | |
* | _________________________ |
* | | rect1| _________| |
* | |______|_____ | rect 3: | |
* | | | rect2 | | biggest | |
* | | |_______| | rect | |
* | |_______________|_________| |
* | damage extent |
* |_______________________________|
* resource
*/
memset(&pres->damage, 0, sizeof(pres->damage));
damage_extent->minx = 0xffff;
damage_extent->miny = 0xffff;
for (i = 0; i < nrects; i++) {
int x = rects[i].x, w = rects[i].width, h = rects[i].height;
int y = res->height0 - (rects[i].y + h);
/* Clamp x,y,w,h to prevent negative values. */
if (x < 0) {
h += x;
x = 0;
}
if (y < 0) {
w += y;
y = 0;
}
w = MAX2(w, 0);
h = MAX2(h, 0);
if (damage_rect->width * damage_rect->height < w * h)
u_box_2d(x, y, w, h, damage_rect);
damage_extent->minx = MIN2(damage_extent->minx, x);
damage_extent->miny = MIN2(damage_extent->miny, y);
damage_extent->maxx = MAX2(damage_extent->maxx,
MIN2(x + w, res->width0));
damage_extent->maxy = MAX2(damage_extent->maxy,
MIN2(y + h, res->height0));
}
}
static struct pipe_resource *
panfrost_resource_create(struct pipe_screen *screen,
const struct pipe_resource *template)
{
/* Make sure we're familiar */
switch (template->target) {
case PIPE_BUFFER:
case PIPE_TEXTURE_1D:
case PIPE_TEXTURE_2D:
case PIPE_TEXTURE_3D:
case PIPE_TEXTURE_CUBE:
case PIPE_TEXTURE_RECT:
case PIPE_TEXTURE_2D_ARRAY:
break;
default:
DBG("Unknown texture target %d\n", template->target);
assert(0);
}
if (template->bind &
(PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED))
return panfrost_create_scanout_res(screen, template);
struct panfrost_resource *so = rzalloc(screen, struct panfrost_resource);
struct panfrost_device *dev = pan_device(screen);
so->base = *template;
so->base.screen = screen;
so->internal_format = template->format;
pipe_reference_init(&so->base.reference, 1);
util_range_init(&so->valid_buffer_range);
panfrost_resource_create_bo(dev, so);
panfrost_resource_reset_damage(so);
if (template->bind & PIPE_BIND_INDEX_BUFFER)
so->index_cache = rzalloc(so, struct panfrost_minmax_cache);
return (struct pipe_resource *)so;
}
static void
panfrost_resource_destroy(struct pipe_screen *screen,
struct pipe_resource *pt)
{
struct panfrost_device *dev = pan_device(screen);
struct panfrost_resource *rsrc = (struct panfrost_resource *) pt;
if (rsrc->scanout)
renderonly_scanout_destroy(rsrc->scanout, dev->ro);
if (rsrc->bo)
panfrost_bo_unreference(rsrc->bo);
if (rsrc->slices[0].checksum_bo)
panfrost_bo_unreference(rsrc->slices[0].checksum_bo);
util_range_destroy(&rsrc->valid_buffer_range);
ralloc_free(rsrc);
}
static void *
panfrost_transfer_map(struct pipe_context *pctx,
struct pipe_resource *resource,
unsigned level,
unsigned usage, /* a combination of PIPE_TRANSFER_x */
const struct pipe_box *box,
struct pipe_transfer **out_transfer)
{
struct panfrost_context *ctx = pan_context(pctx);
int bytes_per_pixel = util_format_get_blocksize(resource->format);
struct panfrost_resource *rsrc = pan_resource(resource);
struct panfrost_bo *bo = rsrc->bo;
struct panfrost_gtransfer *transfer = rzalloc(pctx, struct panfrost_gtransfer);
transfer->base.level = level;
transfer->base.usage = usage;
transfer->base.box = *box;
pipe_resource_reference(&transfer->base.resource, resource);
*out_transfer = &transfer->base;
/* If we haven't already mmaped, now's the time */
panfrost_bo_mmap(bo);
if (pan_debug & (PAN_DBG_TRACE | PAN_DBG_SYNC))
pandecode_inject_mmap(bo->gpu, bo->cpu, bo->size, NULL);
if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
/* If the BO is used by one of the pending batches or if it's
* not ready yet (still accessed by one of the already flushed
* batches), we try to allocate a new one to avoid waiting.
*/
if (panfrost_pending_batches_access_bo(ctx, bo) ||
!panfrost_bo_wait(bo, 0, PAN_BO_ACCESS_RW)) {
struct panfrost_device *dev = pan_device(pctx->screen);
/* We want the BO to be MMAPed. */
uint32_t flags = bo->flags & ~PAN_BO_DELAY_MMAP;
struct panfrost_bo *newbo = NULL;
/* When the BO has been imported/exported, we can't
* replace it by another one, otherwise the
* importer/exporter wouldn't see the change we're
* doing to it.
*/
if (!(bo->flags & (PAN_BO_IMPORTED | PAN_BO_EXPORTED)))
newbo = pan_bo_create(dev, bo->size,
flags);
if (newbo) {
panfrost_bo_unreference(bo);
rsrc->bo = newbo;
bo = newbo;
} else {
uint32_t access = PAN_BO_ACCESS_RW;
/* Allocation failed or was impossible, let's
* fall back on a flush+wait.
*/
panfrost_flush_batches_accessing_bo(ctx, bo,
access);
panfrost_bo_wait(bo, INT64_MAX, access);
}
}
} else if ((usage & PIPE_TRANSFER_WRITE)
&& resource->target == PIPE_BUFFER
&& !util_ranges_intersect(&rsrc->valid_buffer_range, box->x, box->x + box->width)) {
/* No flush for writes to uninitialized */
} else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
if (usage & PIPE_TRANSFER_WRITE) {
panfrost_flush_batches_accessing_bo(ctx, bo, PAN_BO_ACCESS_RW);
panfrost_bo_wait(bo, INT64_MAX, PAN_BO_ACCESS_RW);
} else if (usage & PIPE_TRANSFER_READ) {
panfrost_flush_batches_accessing_bo(ctx, bo, PAN_BO_ACCESS_WRITE);
panfrost_bo_wait(bo, INT64_MAX, PAN_BO_ACCESS_WRITE);
}
}
if (rsrc->layout != MALI_TEXTURE_LINEAR) {
/* Non-linear resources need to be indirectly mapped */
if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
return NULL;
transfer->base.stride = box->width * bytes_per_pixel;
transfer->base.layer_stride = transfer->base.stride * box->height;
transfer->map = rzalloc_size(transfer, transfer->base.layer_stride * box->depth);
assert(box->depth == 1);
if ((usage & PIPE_TRANSFER_READ) && rsrc->slices[level].initialized) {
if (rsrc->layout == MALI_TEXTURE_AFBC) {
DBG("Unimplemented: reads from AFBC");
} else if (rsrc->layout == MALI_TEXTURE_TILED) {
panfrost_load_tiled_image(
transfer->map,
bo->cpu + rsrc->slices[level].offset,
box->x, box->y, box->width, box->height,
transfer->base.stride,
rsrc->slices[level].stride,
resource->format);
}
}
return transfer->map;
} else {
/* Direct, persistent writes create holes in time for
* caching... I don't know if this is actually possible but we
* should still get it right */
unsigned dpw = PIPE_TRANSFER_MAP_DIRECTLY | PIPE_TRANSFER_WRITE | PIPE_TRANSFER_PERSISTENT;
if ((usage & dpw) == dpw && rsrc->index_cache)
return NULL;
transfer->base.stride = rsrc->slices[level].stride;
transfer->base.layer_stride = panfrost_get_layer_stride(
rsrc->slices, rsrc->base.target == PIPE_TEXTURE_3D,
rsrc->cubemap_stride, level);
/* By mapping direct-write, we're implicitly already
* initialized (maybe), so be conservative */
if ((usage & PIPE_TRANSFER_WRITE) && (usage & PIPE_TRANSFER_MAP_DIRECTLY)) {
rsrc->slices[level].initialized = true;
panfrost_minmax_cache_invalidate(rsrc->index_cache, &transfer->base);
}
return bo->cpu
+ rsrc->slices[level].offset
+ transfer->base.box.z * transfer->base.layer_stride
+ transfer->base.box.y * rsrc->slices[level].stride
+ transfer->base.box.x * bytes_per_pixel;
}
}
static void
panfrost_transfer_unmap(struct pipe_context *pctx,
struct pipe_transfer *transfer)
{
/* Gallium expects writeback here, so we tile */
struct panfrost_gtransfer *trans = pan_transfer(transfer);
struct panfrost_resource *prsrc = (struct panfrost_resource *) transfer->resource;
/* Mark whatever we wrote as written */
if (transfer->usage & PIPE_TRANSFER_WRITE)
prsrc->slices[transfer->level].initialized = true;
if (trans->map) {
struct panfrost_bo *bo = prsrc->bo;
if (transfer->usage & PIPE_TRANSFER_WRITE) {
if (prsrc->layout == MALI_TEXTURE_AFBC) {
DBG("Unimplemented: writes to AFBC\n");
} else if (prsrc->layout == MALI_TEXTURE_TILED) {
assert(transfer->box.depth == 1);
panfrost_store_tiled_image(
bo->cpu + prsrc->slices[transfer->level].offset,
trans->map,
transfer->box.x, transfer->box.y,
transfer->box.width, transfer->box.height,
prsrc->slices[transfer->level].stride,
transfer->stride,
prsrc->base.format);
}
}
}
util_range_add(&prsrc->base, &prsrc->valid_buffer_range,
transfer->box.x,
transfer->box.x + transfer->box.width);
panfrost_minmax_cache_invalidate(prsrc->index_cache, transfer);
/* Derefence the resource */
pipe_resource_reference(&transfer->resource, NULL);
/* Transfer itself is RALLOCed at the moment */
ralloc_free(transfer);
}
static void
panfrost_transfer_flush_region(struct pipe_context *pctx,
struct pipe_transfer *transfer,
const struct pipe_box *box)
{
struct panfrost_resource *rsc = pan_resource(transfer->resource);
if (transfer->resource->target == PIPE_BUFFER) {
util_range_add(&rsc->base, &rsc->valid_buffer_range,
transfer->box.x + box->x,
transfer->box.x + box->x + box->width);
} else {
unsigned level = transfer->level;
rsc->slices[level].initialized = true;
}
}
static void
panfrost_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
{
//DBG("TODO %s\n", __func__);
}
static enum pipe_format
panfrost_resource_get_internal_format(struct pipe_resource *rsrc) {
struct panfrost_resource *prsrc = (struct panfrost_resource *) rsrc;
return prsrc->internal_format;
}
static bool
panfrost_generate_mipmap(
struct pipe_context *pctx,
struct pipe_resource *prsrc,
enum pipe_format format,
unsigned base_level,
unsigned last_level,
unsigned first_layer,
unsigned last_layer)
{
struct panfrost_context *ctx = pan_context(pctx);
struct panfrost_resource *rsrc = pan_resource(prsrc);
/* Generating a mipmap invalidates the written levels, so make that
* explicit so we don't try to wallpaper them back and end up with
* u_blitter recursion */
assert(rsrc->bo);
for (unsigned l = base_level + 1; l <= last_level; ++l)
rsrc->slices[l].initialized = false;
/* Beyond that, we just delegate the hard stuff. We're careful to
* include flushes on both ends to make sure the data is really valid.
* We could be doing a lot better perf-wise, especially once we have
* reorder-type optimizations in place. But for now prioritize
* correctness. */
panfrost_flush_batches_accessing_bo(ctx, rsrc->bo, PAN_BO_ACCESS_RW);
panfrost_bo_wait(rsrc->bo, INT64_MAX, PAN_BO_ACCESS_RW);
/* We've flushed the original buffer if needed, now trigger a blit */
bool blit_res = util_gen_mipmap(
pctx, prsrc, format,
base_level, last_level,
first_layer, last_layer,
PIPE_TEX_FILTER_LINEAR);
/* If the blit was successful, flush once more. If it wasn't, well, let
* the gallium frontend deal with it. */
if (blit_res) {
panfrost_flush_batches_accessing_bo(ctx, rsrc->bo, PAN_BO_ACCESS_WRITE);
panfrost_bo_wait(rsrc->bo, INT64_MAX, PAN_BO_ACCESS_WRITE);
}
return blit_res;
}
/* Computes the address to a texture at a particular slice */
mali_ptr
panfrost_get_texture_address(
struct panfrost_resource *rsrc,
unsigned level, unsigned face)
{
bool is_3d = rsrc->base.target == PIPE_TEXTURE_3D;
return rsrc->bo->gpu + panfrost_texture_offset(rsrc->slices, is_3d, rsrc->cubemap_stride, level, face);
}
/* Given a resource that has already been allocated, hint that it should use a
* given layout. These are suggestions, not commands; it is perfectly legal to
* stub out this function, but there will be performance implications. */
void
panfrost_resource_hint_layout(
struct panfrost_device *dev,
struct panfrost_resource *rsrc,
enum mali_texture_layout layout,
signed weight)
{
/* Nothing to do, although a sophisticated implementation might store
* the hint */
if (rsrc->layout == layout)
return;
/* We don't use the weight yet, but we should check that it's positive
* (semantically meaning that we should choose the given `layout`) */
if (weight <= 0)
return;
/* Check if the preferred layout is legal for this buffer */
if (layout == MALI_TEXTURE_AFBC) {
bool can_afbc = panfrost_format_supports_afbc(rsrc->base.format);
bool is_scanout = rsrc->base.bind &
(PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED);
if (!can_afbc || is_scanout)
return;
}
/* Simple heuristic so far: if the resource is uninitialized, switch to
* the hinted layout. If it is initialized, keep the original layout.
* This misses some cases where it would be beneficial to switch and
* blit. */
bool is_initialized = false;
for (unsigned i = 0; i < MAX_MIP_LEVELS; ++i)
is_initialized |= rsrc->slices[i].initialized;
if (is_initialized)
return;
/* We're uninitialized, so do a layout switch. Reinitialize slices. */
size_t new_size;
rsrc->layout = layout;
panfrost_setup_slices(rsrc, &new_size);
/* If we grew in size, reallocate the BO */
if (new_size > rsrc->bo->size) {
panfrost_bo_unreference(rsrc->bo);
rsrc->bo = pan_bo_create(dev, new_size, PAN_BO_DELAY_MMAP);
}
/* TODO: If there are textures bound, regenerate their descriptors */
}
static void
panfrost_resource_set_stencil(struct pipe_resource *prsrc,
struct pipe_resource *stencil)
{
pan_resource(prsrc)->separate_stencil = pan_resource(stencil);
}
static struct pipe_resource *
panfrost_resource_get_stencil(struct pipe_resource *prsrc)
{
return &pan_resource(prsrc)->separate_stencil->base;
}
static const struct u_transfer_vtbl transfer_vtbl = {
.resource_create = panfrost_resource_create,
.resource_destroy = panfrost_resource_destroy,
.transfer_map = panfrost_transfer_map,
.transfer_unmap = panfrost_transfer_unmap,
.transfer_flush_region = panfrost_transfer_flush_region,
.get_internal_format = panfrost_resource_get_internal_format,
.set_stencil = panfrost_resource_set_stencil,
.get_stencil = panfrost_resource_get_stencil,
};
void
panfrost_resource_screen_init(struct pipe_screen *pscreen)
{
//pscreen->base.resource_create_with_modifiers =
// panfrost_resource_create_with_modifiers;
pscreen->resource_create = u_transfer_helper_resource_create;
pscreen->resource_destroy = u_transfer_helper_resource_destroy;
pscreen->resource_from_handle = panfrost_resource_from_handle;
pscreen->resource_get_handle = panfrost_resource_get_handle;
pscreen->transfer_helper = u_transfer_helper_create(&transfer_vtbl,
true, false,
true, true);
}
void
panfrost_resource_context_init(struct pipe_context *pctx)
{
pctx->transfer_map = u_transfer_helper_transfer_map;
pctx->transfer_unmap = u_transfer_helper_transfer_unmap;
pctx->create_surface = panfrost_create_surface;
pctx->surface_destroy = panfrost_surface_destroy;
pctx->resource_copy_region = util_resource_copy_region;
pctx->blit = panfrost_blit;
pctx->generate_mipmap = panfrost_generate_mipmap;
pctx->flush_resource = panfrost_flush_resource;
pctx->invalidate_resource = panfrost_invalidate_resource;
pctx->transfer_flush_region = u_transfer_helper_transfer_flush_region;
pctx->buffer_subdata = u_default_buffer_subdata;
pctx->texture_subdata = u_default_texture_subdata;
}
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