[Mesa-dev] [Patch] Sharing flags should disable tiling
Stéphane Marchesin
stephane.marchesin at gmail.com
Mon Aug 12 14:36:42 PDT 2013
On Mon, Aug 12, 2013 at 2:29 PM, Ian Romanick <idr at freedesktop.org> wrote:
> On 08/11/2013 03:50 AM, davyaxel at free.fr wrote:
>>>
>>> This looks good to me, but commit messages should have a prefix
>>> indicating which component is changed. In your case it's "gallium:"
>>> and "intel:", respectively.
>>>
>>> Marek
>>
>>
>>
>> Ok, I've suppressed some trailing spaces and changed the commit message.
>
>
> And smashed two separate patches into one. Was that intentional?
>
>
>> From f48fdb44d638ae850c7f3df36211b33788088927 Mon Sep 17 00:00:00 2001
>> From: axeldavy <axel.davy at ens.fr>
>> Date: Sun, 11 Aug 2013 12:36:33 +0200
>> Subject: [PATCH 1/1] gallium: Implements the new meaning of
>> PIPE_BIND_SHARED
>> (there should be no tiling) for i915, ilo, nv50, nvc0, r300, r600,
>> radeonsi.
>> intel: _DRI_IMAGE_USE_SHARE is equivalent to PIPE_BIND_SHARED. No tiling
>> either for the dri drivers i915 and i965.
>>
>>
>> Signed-off-by: axeldavy <axel.davy at ens.fr>
>
>
> Real name in S-o-b, please. Axel Davy?
>
>
>> ---
>> src/gallium/drivers/i915/i915_resource.c | 7 ++++++-
>> src/gallium/drivers/ilo/ilo_resource.c | 2 +-
>> src/gallium/drivers/nv50/nv50_miptree.c | 3 +++
>> src/gallium/drivers/nvc0/nvc0_miptree.c | 3 +++
>> src/gallium/drivers/r300/r300_texture.c | 2 +-
>> src/gallium/drivers/r600/r600_texture.c | 3 ++-
>> src/gallium/drivers/radeonsi/r600_texture.c | 2 +-
>> src/gallium/include/pipe/p_defines.h | 5 ++---
>> src/mesa/drivers/dri/i915/intel_screen.c | 2 ++
>> src/mesa/drivers/dri/i965/intel_screen.c | 3 ++-
>> 10 files changed, 23 insertions(+), 9 deletions(-)
>>
>> diff --git a/src/gallium/drivers/i915/i915_resource.c
>> b/src/gallium/drivers/i915/i915_resource.c
>> index 314ebe9..563bf83 100644
>> --- a/src/gallium/drivers/i915/i915_resource.c
>> +++ b/src/gallium/drivers/i915/i915_resource.c
>> @@ -12,7 +12,12 @@ i915_resource_create(struct pipe_screen *screen,
>> if (template->target == PIPE_BUFFER)
>> return i915_buffer_create(screen, template);
>> else
>> - return i915_texture_create(screen, template, FALSE);
>> + {
>> + if (!(template->bind & PIPE_BIND_SHARED))
>> + return i915_texture_create(screen, template, FALSE);
>> + else
>> + return i915_texture_create(screen, template, TRUE);
>> + }
>>
>> }
>>
>> diff --git a/src/gallium/drivers/ilo/ilo_resource.c
>> b/src/gallium/drivers/ilo/ilo_resource.c
>> index 5061f69..3d5874f 100644
>> --- a/src/gallium/drivers/ilo/ilo_resource.c
>> +++ b/src/gallium/drivers/ilo/ilo_resource.c
>> @@ -473,7 +473,7 @@ tex_layout_init_tiling(struct tex_layout *layout)
>> * "The cursor surface address must be 4K byte aligned. The
>> cursor must
>> * be in linear memory, it cannot be tiled."
>> */
>> - if (unlikely(templ->bind & PIPE_BIND_CURSOR))
>> + if (unlikely(templ->bind & (PIPE_BIND_CURSOR | PIPE_BIND_SHARED)))
>> valid_tilings &= tile_none;
>>
>> /*
>> diff --git a/src/gallium/drivers/nv50/nv50_miptree.c
>> b/src/gallium/drivers/nv50/nv50_miptree.c
>> index 28be768..a4f15fe 100644
>> --- a/src/gallium/drivers/nv50/nv50_miptree.c
>> +++ b/src/gallium/drivers/nv50/nv50_miptree.c
>> @@ -326,6 +326,9 @@ nv50_miptree_create(struct pipe_screen *pscreen,
>> pipe_reference_init(&pt->reference, 1);
>> pt->screen = pscreen;
>>
>> + if (pt->bind & PIPE_BIND_SHARED)
>> + pt->flags |= NOUVEAU_RESOURCE_FLAG_LINEAR;
>> +
>> bo_config.nv50.memtype = nv50_mt_choose_storage_type(mt, TRUE);
>>
>> if (!nv50_miptree_init_ms_mode(mt)) {
>> diff --git a/src/gallium/drivers/nvc0/nvc0_miptree.c
>> b/src/gallium/drivers/nvc0/nvc0_miptree.c
>> index 9e57d74..e645553 100644
>> --- a/src/gallium/drivers/nvc0/nvc0_miptree.c
>> +++ b/src/gallium/drivers/nvc0/nvc0_miptree.c
>> @@ -274,6 +274,9 @@ nvc0_miptree_create(struct pipe_screen *pscreen,
>> }
>> }
>>
>> + if (pt->bind & PIPE_BIND_SHARED)
>> + pt->flags |= NOUVEAU_RESOURCE_FLAG_LINEAR;
>> +
>> bo_config.nvc0.memtype = nvc0_mt_choose_storage_type(mt, compressed);
>>
>> if (!nvc0_miptree_init_ms_mode(mt)) {
>> diff --git a/src/gallium/drivers/r300/r300_texture.c
>> b/src/gallium/drivers/r300/r300_texture.c
>> index 13e9bc3..3672d7b 100644
>> --- a/src/gallium/drivers/r300/r300_texture.c
>> +++ b/src/gallium/drivers/r300/r300_texture.c
>> @@ -1079,7 +1079,7 @@ struct pipe_resource *r300_texture_create(struct
>> pipe_screen *screen,
>> enum radeon_bo_layout microtile, macrotile;
>>
>> if ((base->flags & R300_RESOURCE_FLAG_TRANSFER) ||
>> - (base->bind & PIPE_BIND_SCANOUT)) {
>> + (base->bind & (PIPE_BIND_SCANOUT | PIPE_BIND_SHARED))) {
>> microtile = RADEON_LAYOUT_LINEAR;
>> macrotile = RADEON_LAYOUT_LINEAR;
>> } else {
>> diff --git a/src/gallium/drivers/r600/r600_texture.c
>> b/src/gallium/drivers/r600/r600_texture.c
>> index 36cca17..60c050b 100644
>> --- a/src/gallium/drivers/r600/r600_texture.c
>> +++ b/src/gallium/drivers/r600/r600_texture.c
>> @@ -609,7 +609,8 @@ struct pipe_resource *r600_texture_create(struct
>> pipe_screen *screen,
>> * because 422 formats are used for videos, which prefer linear
>> buffers
>> * for fast uploads anyway. */
>> if (!(templ->flags & R600_RESOURCE_FLAG_TRANSFER) &&
>> - desc->layout != UTIL_FORMAT_LAYOUT_SUBSAMPLED) {
>> + (desc->layout != UTIL_FORMAT_LAYOUT_SUBSAMPLED) &&
>> + !(templ->bind & PIPE_BIND_SHARED)) {
>> if (templ->flags & R600_RESOURCE_FLAG_FORCE_TILING) {
>> array_mode = V_038000_ARRAY_2D_TILED_THIN1;
>> } else if (!(templ->bind & PIPE_BIND_SCANOUT) &&
>> diff --git a/src/gallium/drivers/radeonsi/r600_texture.c
>> b/src/gallium/drivers/radeonsi/r600_texture.c
>> index 282d4f2..604d315 100644
>> --- a/src/gallium/drivers/radeonsi/r600_texture.c
>> +++ b/src/gallium/drivers/radeonsi/r600_texture.c
>> @@ -528,7 +528,7 @@ struct pipe_resource *si_texture_create(struct
>> pipe_screen *screen,
>> int r;
>>
>> if (!(templ->flags & R600_RESOURCE_FLAG_TRANSFER) &&
>> - !(templ->bind & PIPE_BIND_SCANOUT)) {
>> + !(templ->bind & (PIPE_BIND_SCANOUT | PIPE_BIND_SHARED))) {
>> if (util_format_is_compressed(templ->format)) {
>> array_mode = V_009910_ARRAY_1D_TILED_THIN1;
>> } else {
>> diff --git a/src/gallium/include/pipe/p_defines.h
>> b/src/gallium/include/pipe/p_defines.h
>> index fb42cdf..b6ea7a7 100644
>> --- a/src/gallium/include/pipe/p_defines.h
>> +++ b/src/gallium/include/pipe/p_defines.h
>> @@ -327,9 +327,8 @@ enum pipe_flush_flags {
>> * implies extra layout constraints on some hardware. It may also
>> * have some special meaning regarding mouse cursor images.
>> *
>> - * The shared flag is quite underspecified, but certainly isn't a
>> - * binding flag - it seems more like a message to the winsys to create
>> - * a shareable allocation.
>> + * The shared flag means that allocations must be shareable, and then
>> until tiling
>> + * sets up automatically when needed, that there must be no tiling.
>> */
>> #define PIPE_BIND_SCANOUT (1 << 14) /* */
>> #define PIPE_BIND_SHARED (1 << 15) /* get_texture_handle ??? */
>> diff --git a/src/mesa/drivers/dri/i915/intel_screen.c
>> b/src/mesa/drivers/dri/i915/intel_screen.c
>> index 30a867e..263dcc4 100644
>> --- a/src/mesa/drivers/dri/i915/intel_screen.c
>> +++ b/src/mesa/drivers/dri/i915/intel_screen.c
>
>
> Are the changes to i915 necessary?
Yes please include the i915g changes.
> Other than hybrid systems (of which
> there are none with i915 graphics), is there any case where
> __DRI_IMAGE_USE_SHARE can occur?
You could do interesting things like cross-process sharing with it. I
think it's worth doing it, no matter what. It's easy to pick up now,
and hard to fix up later.
Stéphane
> It seems like these cases should either be
> ignored or generate an error.
>
>
>> @@ -483,6 +483,8 @@ intel_create_image(__DRIscreen *screen,
>> return NULL;
>> tiling = I915_TILING_NONE;
>> }
>
>
> Blank line here.
>
>
>> + if (use & __DRI_IMAGE_USE_SHARE)
>> + tiling = I915_TILING_NONE;
>>
>> image = intel_allocate_image(format, loaderPrivate);
>> if (image == NULL)
>> diff --git a/src/mesa/drivers/dri/i965/intel_screen.c
>> b/src/mesa/drivers/dri/i965/intel_screen.c
>> index 4ee8602..4caf6fe 100644
>> --- a/src/mesa/drivers/dri/i965/intel_screen.c
>> +++ b/src/mesa/drivers/dri/i965/intel_screen.c
>> @@ -505,7 +505,8 @@ intel_create_image(__DRIscreen *screen,
>> return NULL;
>> tiling = I915_TILING_NONE;
>> }
>
>
> Blank line here.
>
>
>> -
>> + if (use & __DRI_IMAGE_USE_SHARE)
>> + tiling = I915_TILING_NONE;
>
>
> And here.
>
>
>> image = intel_allocate_image(format, loaderPrivate);
>> if (image == NULL)
>> return NULL;
>>
>
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