1 /**************************************************************************
3 * Copyright 2008 VMware, Inc.
4 * Copyright 2014 Broadcom
5 * Copyright 2018 Alyssa Rosenzweig
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 **************************************************************************/
32 #include "drm-uapi/drm_fourcc.h"
34 #include "state_tracker/winsys_handle.h"
35 #include "util/u_format.h"
36 #include "util/u_memory.h"
37 #include "util/u_surface.h"
38 #include "util/u_transfer.h"
39 #include "util/u_transfer_helper.h"
41 #include "pan_context.h"
42 #include "pan_screen.h"
43 #include "pan_resource.h"
44 #include "pan_swizzle.h"
46 static struct pipe_resource
*
47 panfrost_resource_from_handle(struct pipe_screen
*pscreen
,
48 const struct pipe_resource
*templat
,
49 struct winsys_handle
*whandle
,
52 struct panfrost_screen
*screen
= pan_screen(pscreen
);
53 struct panfrost_resource
*rsc
;
54 struct pipe_resource
*prsc
;
56 assert(whandle
->type
== WINSYS_HANDLE_TYPE_FD
);
58 rsc
= CALLOC_STRUCT(panfrost_resource
);
66 pipe_reference_init(&prsc
->reference
, 1);
67 prsc
->screen
= pscreen
;
69 rsc
->bo
= screen
->driver
->import_bo(screen
, whandle
);
75 panfrost_resource_get_handle(struct pipe_screen
*pscreen
,
76 struct pipe_context
*ctx
,
77 struct pipe_resource
*pt
,
78 struct winsys_handle
*handle
,
81 struct panfrost_screen
*screen
= pan_screen(pscreen
);
82 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
83 struct renderonly_scanout
*scanout
= rsrc
->scanout
;
84 int bytes_per_pixel
= util_format_get_blocksize(rsrc
->base
.format
);
85 int stride
= bytes_per_pixel
* rsrc
->base
.width0
; /* TODO: Alignment? */
87 handle
->stride
= stride
;
88 handle
->modifier
= DRM_FORMAT_MOD_INVALID
;
90 if (handle
->type
== WINSYS_HANDLE_TYPE_SHARED
) {
91 printf("Missed shared handle\n");
93 } else if (handle
->type
== WINSYS_HANDLE_TYPE_KMS
) {
94 if (renderonly_get_handle(scanout
, handle
)) {
97 printf("Missed nonrenderonly KMS handle for resource %p with scanout %p\n", pt
, scanout
);
100 } else if (handle
->type
== WINSYS_HANDLE_TYPE_FD
) {
102 struct drm_prime_handle args
= {
103 .handle
= scanout
->handle
,
104 .flags
= DRM_CLOEXEC
,
107 int ret
= drmIoctl(screen
->ro
->kms_fd
, DRM_IOCTL_PRIME_HANDLE_TO_FD
, &args
);
111 handle
->handle
= args
.fd
;
115 printf("Missed nonscanout FD handle\n");
125 panfrost_flush_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
127 //fprintf(stderr, "TODO %s\n", __func__);
131 panfrost_blit(struct pipe_context
*pipe
,
132 const struct pipe_blit_info
*info
)
135 printf("Skipping blit XXX\n");
139 static struct pipe_surface
*
140 panfrost_create_surface(struct pipe_context
*pipe
,
141 struct pipe_resource
*pt
,
142 const struct pipe_surface
*surf_tmpl
)
144 struct pipe_surface
*ps
= NULL
;
146 ps
= CALLOC_STRUCT(pipe_surface
);
149 pipe_reference_init(&ps
->reference
, 1);
150 pipe_resource_reference(&ps
->texture
, pt
);
152 ps
->format
= surf_tmpl
->format
;
154 if (pt
->target
!= PIPE_BUFFER
) {
155 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
156 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
157 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
158 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
159 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
160 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
162 /* setting width as number of elements should get us correct renderbuffer width */
163 ps
->width
= surf_tmpl
->u
.buf
.last_element
- surf_tmpl
->u
.buf
.first_element
+ 1;
164 ps
->height
= pt
->height0
;
165 ps
->u
.buf
.first_element
= surf_tmpl
->u
.buf
.first_element
;
166 ps
->u
.buf
.last_element
= surf_tmpl
->u
.buf
.last_element
;
167 assert(ps
->u
.buf
.first_element
<= ps
->u
.buf
.last_element
);
168 assert(ps
->u
.buf
.last_element
< ps
->width
);
176 panfrost_surface_destroy(struct pipe_context
*pipe
,
177 struct pipe_surface
*surf
)
179 assert(surf
->texture
);
180 pipe_resource_reference(&surf
->texture
, NULL
);
184 static struct panfrost_bo
*
185 panfrost_create_bo(struct panfrost_screen
*screen
, const struct pipe_resource
*template)
187 struct panfrost_bo
*bo
= CALLOC_STRUCT(panfrost_bo
);
188 int bytes_per_pixel
= util_format_get_blocksize(template->format
);
189 int stride
= bytes_per_pixel
* template->width0
; /* TODO: Alignment? */
192 if (template->height0
) sz
*= template->height0
;
194 if (template->depth0
) sz
*= template->depth0
;
196 if ((template->bind
& PIPE_BIND_RENDER_TARGET
) || (template->bind
& PIPE_BIND_DEPTH_STENCIL
)) {
197 /* TODO: Mipmapped RTs */
198 //assert(template->last_level == 0);
200 /* Allocate the framebuffer as its own slab of GPU-accessible memory */
201 struct panfrost_memory slab
;
202 screen
->driver
->allocate_slab(screen
, &slab
, (sz
/ 4096) + 1, false, 0, 0, 0);
204 /* Make the resource out of the slab */
205 bo
->cpu
[0] = slab
.cpu
;
206 bo
->gpu
[0] = slab
.gpu
;
208 /* TODO: For linear resources, allocate straight on the cmdstream for
209 * zero-copy operation */
211 /* Tiling textures is almost always faster, unless we only use it once */
212 bo
->tiled
= (template->usage
!= PIPE_USAGE_STREAM
) && (template->bind
& PIPE_BIND_SAMPLER_VIEW
);
215 /* For tiled, we don't map directly, so just malloc any old buffer */
217 for (int l
= 0; l
< (template->last_level
+ 1); ++l
) {
218 bo
->cpu
[l
] = malloc(sz
);
222 /* But for linear, we can! */
224 struct pb_slab_entry
*entry
= pb_slab_alloc(&screen
->slabs
, sz
, HEAP_TEXTURE
);
225 struct panfrost_memory_entry
*p_entry
= (struct panfrost_memory_entry
*) entry
;
226 struct panfrost_memory
*backing
= (struct panfrost_memory
*) entry
->slab
;
227 bo
->entry
[0] = p_entry
;
228 bo
->cpu
[0] = backing
->cpu
+ p_entry
->offset
;
229 bo
->gpu
[0] = backing
->gpu
+ p_entry
->offset
;
238 static struct pipe_resource
*
239 panfrost_resource_create(struct pipe_screen
*screen
,
240 const struct pipe_resource
*template)
242 struct panfrost_resource
*so
= CALLOC_STRUCT(panfrost_resource
);
243 struct panfrost_screen
*pscreen
= (struct panfrost_screen
*) screen
;
245 so
->base
= *template;
246 so
->base
.screen
= screen
;
248 pipe_reference_init(&so
->base
.reference
, 1);
250 /* Make sure we're familiar */
251 switch (template->target
) {
253 case PIPE_TEXTURE_1D
:
254 case PIPE_TEXTURE_2D
:
255 case PIPE_TEXTURE_3D
:
256 case PIPE_TEXTURE_RECT
:
259 fprintf(stderr
, "Unknown texture target %d\n", template->target
);
263 if ((template->bind
& PIPE_BIND_RENDER_TARGET
) || (template->bind
& PIPE_BIND_DEPTH_STENCIL
)) {
264 if (template->bind
& PIPE_BIND_DISPLAY_TARGET
||
265 template->bind
& PIPE_BIND_SCANOUT
||
266 template->bind
& PIPE_BIND_SHARED
) {
267 struct pipe_resource scanout_templat
= *template;
268 struct renderonly_scanout
*scanout
;
269 struct winsys_handle handle
;
271 /* TODO: align width0 and height0? */
273 scanout
= renderonly_scanout_for_resource(&scanout_templat
,
274 pscreen
->ro
, &handle
);
278 assert(handle
.type
== WINSYS_HANDLE_TYPE_FD
);
279 /* TODO: handle modifiers? */
280 so
= pan_resource(screen
->resource_from_handle(screen
, template,
282 PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE
));
283 close(handle
.handle
);
287 so
->scanout
= scanout
;
288 pscreen
->display_target
= so
;
290 so
->bo
= panfrost_create_bo(pscreen
, template);
293 so
->bo
= panfrost_create_bo(pscreen
, template);
296 printf("Created resource %p with scanout %p\n", so
, so
->scanout
);
298 return (struct pipe_resource
*)so
;
302 panfrost_destroy_bo(struct panfrost_screen
*screen
, struct panfrost_bo
*pbo
)
304 struct panfrost_bo
*bo
= (struct panfrost_bo
*)pbo
;
307 /* CPU is all malloc'ed, so just plain ol' free needed */
309 for (int l
= 0; bo
->cpu
[l
]; l
++) {
312 } else if (bo
->entry
[0] != NULL
) {
313 bo
->entry
[0]->freed
= true;
314 pb_slab_free(&screen
->slabs
, &bo
->entry
[0]->base
);
317 printf("--leaking main allocation--\n");
322 printf("--leaking afbc--\n");
325 if (bo
->has_checksum
) {
327 printf("--leaking checksum--\n");
332 panfrost_resource_destroy(struct pipe_screen
*screen
,
333 struct pipe_resource
*pt
)
335 struct panfrost_screen
*pscreen
= panfrost_screen(screen
);
336 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
339 renderonly_scanout_destroy(rsrc
->scanout
, pscreen
->ro
);
342 panfrost_destroy_bo(pscreen
, rsrc
->bo
);
348 panfrost_map_bo(struct panfrost_context
*ctx
, struct pipe_transfer
*transfer
)
350 struct panfrost_bo
*bo
= (struct panfrost_bo
*)pan_resource(transfer
->resource
)->bo
;
352 /* If non-zero level, it's a mipmapped resource and needs to be treated as such */
353 bo
->is_mipmap
|= transfer
->level
;
355 if (transfer
->usage
& PIPE_TRANSFER_MAP_DIRECTLY
&& bo
->tiled
) {
356 /* We cannot directly map tiled textures */
360 if (transfer
->resource
->bind
& PIPE_BIND_DEPTH_STENCIL
) {
361 /* Mipmapped readpixels?! */
362 assert(transfer
->level
== 0);
364 /* Set the CPU mapping to that of the depth/stencil buffer in memory, untiled */
365 bo
->cpu
[transfer
->level
] = ctx
->depth_stencil_buffer
.cpu
;
368 return bo
->cpu
[transfer
->level
];
372 panfrost_transfer_map(struct pipe_context
*pctx
,
373 struct pipe_resource
*resource
,
375 unsigned usage
, /* a combination of PIPE_TRANSFER_x */
376 const struct pipe_box
*box
,
377 struct pipe_transfer
**out_transfer
)
379 struct panfrost_context
*ctx
= pan_context(pctx
);
380 int bytes_per_pixel
= util_format_get_blocksize(resource
->format
);
381 int stride
= bytes_per_pixel
* resource
->width0
; /* TODO: Alignment? */
384 struct pipe_transfer
*transfer
= CALLOC_STRUCT(pipe_transfer
);
385 transfer
->level
= level
;
386 transfer
->usage
= usage
;
387 transfer
->box
= *box
;
388 transfer
->stride
= stride
;
389 assert(!transfer
->box
.z
);
391 pipe_resource_reference(&transfer
->resource
, resource
);
393 *out_transfer
= transfer
;
395 if (resource
->bind
& PIPE_BIND_DISPLAY_TARGET
||
396 resource
->bind
& PIPE_BIND_SCANOUT
||
397 resource
->bind
& PIPE_BIND_SHARED
) {
398 /* Mipmapped readpixels?! */
401 /* Force a flush -- kill the pipeline */
402 panfrost_flush(pctx
, NULL
, PIPE_FLUSH_END_OF_FRAME
);
405 cpu
= panfrost_map_bo(ctx
, transfer
);
409 return cpu
+ transfer
->box
.x
* bytes_per_pixel
+ transfer
->box
.y
* stride
;
413 panfrost_tile_texture(struct panfrost_screen
*screen
, struct panfrost_resource
*rsrc
, int level
)
415 struct panfrost_bo
*bo
= (struct panfrost_bo
*)rsrc
->bo
;
416 int bytes_per_pixel
= util_format_get_blocksize(rsrc
->base
.format
);
417 int stride
= bytes_per_pixel
* rsrc
->base
.width0
; /* TODO: Alignment? */
419 int width
= rsrc
->base
.width0
>> level
;
420 int height
= rsrc
->base
.height0
>> level
;
422 /* Estimate swizzled bitmap size. Slight overestimates are fine.
423 * Underestimates will result in memory corruption or worse. */
425 int swizzled_sz
= panfrost_swizzled_size(width
, height
, bytes_per_pixel
);
427 /* Allocate the transfer given that known size but do not copy */
428 struct pb_slab_entry
*entry
= pb_slab_alloc(&screen
->slabs
, swizzled_sz
, HEAP_TEXTURE
);
429 struct panfrost_memory_entry
*p_entry
= (struct panfrost_memory_entry
*) entry
;
430 struct panfrost_memory
*backing
= (struct panfrost_memory
*) entry
->slab
;
431 uint8_t *swizzled
= backing
->cpu
+ p_entry
->offset
;
433 /* Save the entry. But if there was already an entry here (from a
434 * previous upload of the resource), free that one so we don't leak */
436 if (bo
->entry
[level
] != NULL
) {
437 bo
->entry
[level
]->freed
= true;
438 pb_slab_free(&screen
->slabs
, &bo
->entry
[level
]->base
);
441 bo
->entry
[level
] = p_entry
;
442 bo
->gpu
[level
] = backing
->gpu
+ p_entry
->offset
;
444 /* Run actual texture swizzle, writing directly to the mapped
445 * GPU chunk we allocated */
447 panfrost_texture_swizzle(width
, height
, bytes_per_pixel
, stride
, bo
->cpu
[level
], swizzled
);
451 panfrost_unmap_bo(struct panfrost_context
*ctx
,
452 struct pipe_transfer
*transfer
)
454 struct panfrost_bo
*bo
= (struct panfrost_bo
*)pan_resource(transfer
->resource
)->bo
;
456 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
457 if (transfer
->resource
->target
== PIPE_TEXTURE_2D
) {
458 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) transfer
->resource
;
460 /* Gallium thinks writeback happens here; instead, this is our cue to tile */
462 printf("Warning: writes to afbc surface can't possibly work out well for you...\n");
463 } else if (bo
->tiled
) {
464 struct pipe_context
*gallium
= (struct pipe_context
*) ctx
;
465 struct panfrost_screen
*screen
= pan_screen(gallium
->screen
);
466 panfrost_tile_texture(screen
, prsrc
, transfer
->level
);
473 panfrost_transfer_unmap(struct pipe_context
*pctx
,
474 struct pipe_transfer
*transfer
)
476 struct panfrost_context
*ctx
= pan_context(pctx
);
478 panfrost_unmap_bo(ctx
, transfer
);
480 /* Derefence the resource */
481 pipe_resource_reference(&transfer
->resource
, NULL
);
483 /* Transfer itself is CALLOCed at the moment */
487 static struct pb_slab
*
488 panfrost_slab_alloc(void *priv
, unsigned heap
, unsigned entry_size
, unsigned group_index
)
490 struct panfrost_screen
*screen
= (struct panfrost_screen
*) priv
;
491 struct panfrost_memory
*mem
= CALLOC_STRUCT(panfrost_memory
);
493 size_t slab_size
= (1 << (MAX_SLAB_ENTRY_SIZE
+ 1));
495 mem
->slab
.num_entries
= slab_size
/ entry_size
;
496 mem
->slab
.num_free
= mem
->slab
.num_entries
;
498 LIST_INITHEAD(&mem
->slab
.free
);
499 for (unsigned i
= 0; i
< mem
->slab
.num_entries
; ++i
) {
500 /* Create a slab entry */
501 struct panfrost_memory_entry
*entry
= CALLOC_STRUCT(panfrost_memory_entry
);
502 entry
->offset
= entry_size
* i
;
504 entry
->base
.slab
= &mem
->slab
;
505 entry
->base
.group_index
= group_index
;
507 LIST_ADDTAIL(&entry
->base
.head
, &mem
->slab
.free
);
510 /* Actually allocate the memory from kernel-space. Mapped, same_va, no
513 screen
->driver
->allocate_slab(screen
, mem
, slab_size
/ 4096, true, 0, 0, 0);
519 panfrost_slab_can_reclaim(void *priv
, struct pb_slab_entry
*entry
)
521 struct panfrost_memory_entry
*p_entry
= (struct panfrost_memory_entry
*) entry
;
522 return p_entry
->freed
;
526 panfrost_slab_free(void *priv
, struct pb_slab
*slab
)
529 //struct panfrost_memory *mem = (struct panfrost_memory *) slab;
530 printf("stub: Tried to free slab\n");
534 panfrost_invalidate_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
536 //fprintf(stderr, "TODO %s\n", __func__);
539 static const struct u_transfer_vtbl transfer_vtbl
= {
540 .resource_create
= panfrost_resource_create
,
541 .resource_destroy
= panfrost_resource_destroy
,
542 .transfer_map
= panfrost_transfer_map
,
543 .transfer_unmap
= panfrost_transfer_unmap
,
544 .transfer_flush_region
= u_default_transfer_flush_region
,
545 //.get_internal_format = panfrost_resource_get_internal_format,
546 //.set_stencil = panfrost_resource_set_stencil,
547 //.get_stencil = panfrost_resource_get_stencil,
551 panfrost_resource_screen_init(struct panfrost_screen
*pscreen
)
553 //pscreen->base.resource_create_with_modifiers =
554 // panfrost_resource_create_with_modifiers;
555 pscreen
->base
.resource_create
= u_transfer_helper_resource_create
;
556 pscreen
->base
.resource_destroy
= u_transfer_helper_resource_destroy
;
557 pscreen
->base
.resource_from_handle
= panfrost_resource_from_handle
;
558 pscreen
->base
.resource_get_handle
= panfrost_resource_get_handle
;
559 pscreen
->base
.transfer_helper
= u_transfer_helper_create(&transfer_vtbl
,
563 pb_slabs_init(&pscreen
->slabs
,
567 3, /* Number of heaps */
571 panfrost_slab_can_reclaim
,
577 panfrost_resource_context_init(struct pipe_context
*pctx
)
579 pctx
->transfer_map
= u_transfer_helper_transfer_map
;
580 pctx
->transfer_flush_region
= u_transfer_helper_transfer_flush_region
;
581 pctx
->transfer_unmap
= u_transfer_helper_transfer_unmap
;
582 pctx
->buffer_subdata
= u_default_buffer_subdata
;
583 pctx
->create_surface
= panfrost_create_surface
;
584 pctx
->surface_destroy
= panfrost_surface_destroy
;
585 pctx
->resource_copy_region
= util_resource_copy_region
;
586 pctx
->blit
= panfrost_blit
;
587 //pctx->generate_mipmap = panfrost_generate_mipmap;
588 pctx
->flush_resource
= panfrost_flush_resource
;
589 pctx
->invalidate_resource
= panfrost_invalidate_resource
;
590 pctx
->transfer_flush_region
= u_transfer_helper_transfer_flush_region
;
591 pctx
->buffer_subdata
= u_default_buffer_subdata
;
592 pctx
->texture_subdata
= u_default_texture_subdata
;