Release 4.7 drivers/gpu/drm/i915/i915_gem_render_state.c
/*
* Copyright © 2014 Intel 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 (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:
* Mika Kuoppala <mika.kuoppala@intel.com>
*
*/
#include "i915_drv.h"
#include "intel_renderstate.h"
static const struct intel_renderstate_rodata *
render_state_get_rodata(struct drm_device *dev, const int gen)
{
switch (gen) {
case 6:
return &gen6_null_state;
case 7:
return &gen7_null_state;
case 8:
return &gen8_null_state;
case 9:
return &gen9_null_state;
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chris wilson | chris wilson | 38 | 69.09% | 1 | 33.33% |
| mika kuoppala | mika kuoppala | 10 | 18.18% | 1 | 33.33% |
| armin c reese | armin c reese | 7 | 12.73% | 1 | 33.33% |
| Total | 55 | 100.00% | 3 | 100.00% |
static int render_state_init(struct render_state *so, struct drm_device *dev)
{
int ret;
so->gen = INTEL_INFO(dev)->gen;
so->rodata = render_state_get_rodata(dev, so->gen);
if (so->rodata == NULL)
return 0;
if (so->rodata->batch_items * 4 > 4096)
return -EINVAL;
so->obj = i915_gem_alloc_object(dev, 4096);
if (so->obj == NULL)
return -ENOMEM;
ret = i915_gem_obj_ggtt_pin(so->obj, 4096, 0);
if (ret)
goto free_gem;
so->ggtt_offset = i915_gem_obj_ggtt_offset(so->obj);
return 0;
free_gem:
drm_gem_object_unreference(&so->obj->base);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mika kuoppala | mika kuoppala | 92 | 64.79% | 1 | 50.00% |
| chris wilson | chris wilson | 50 | 35.21% | 1 | 50.00% |
| Total | 142 | 100.00% | 2 | 100.00% |
/*
* Macro to add commands to auxiliary batch.
* This macro only checks for page overflow before inserting the commands,
* this is sufficient as the null state generator makes the final batch
* with two passes to build command and state separately. At this point
* the size of both are known and it compacts them by relocating the state
* right after the commands taking care of aligment so we should sufficient
* space below them for adding new commands.
*/
#define OUT_BATCH(batch, i, val) \
do { \
if (WARN_ON((i) >= PAGE_SIZE / sizeof(u32))) { \
ret = -ENOSPC; \
goto err_out; \
} \
(batch)[(i)++] = (val); \
} while(0)
static int render_state_setup(struct render_state *so)
{
const struct intel_renderstate_rodata *rodata = so->rodata;
unsigned int i = 0, reloc_index = 0;
struct page *page;
u32 *d;
int ret;
ret = i915_gem_object_set_to_cpu_domain(so->obj, true);
if (ret)
return ret;
page = i915_gem_object_get_dirty_page(so->obj, 0);
d = kmap(page);
while (i < rodata->batch_items) {
u32 s = rodata->batch[i];
if (i * 4 == rodata->reloc[reloc_index]) {
u64 r = s + so->ggtt_offset;
s = lower_32_bits(r);
if (so->gen >= 8) {
if (i + 1 >= rodata->batch_items ||
rodata->batch[i + 1] != 0) {
ret = -EINVAL;
goto err_out;
}
d[i++] = s;
s = upper_32_bits(r);
}
reloc_index++;
}
d[i++] = s;
}
while (i % CACHELINE_DWORDS)
OUT_BATCH(d, i, MI_NOOP);
so->aux_batch_offset = i * sizeof(u32);
OUT_BATCH(d, i, MI_BATCH_BUFFER_END);
so->aux_batch_size = (i * sizeof(u32)) - so->aux_batch_offset;
/*
* Since we are sending length, we need to strictly conform to
* all requirements. For Gen2 this must be a multiple of 8.
*/
so->aux_batch_size = ALIGN(so->aux_batch_size, 8);
kunmap(page);
ret = i915_gem_object_set_to_gtt_domain(so->obj, false);
if (ret)
return ret;
if (rodata->reloc[reloc_index] != -1) {
DRM_ERROR("only %d relocs resolved\n", reloc_index);
return -EINVAL;
}
return 0;
err_out:
kunmap(page);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mika kuoppala | mika kuoppala | 187 | 57.72% | 2 | 40.00% |
| chris wilson | chris wilson | 68 | 20.99% | 1 | 20.00% |
| arun siluvery | arun siluvery | 66 | 20.37% | 1 | 20.00% |
| dave gordon | dave gordon | 3 | 0.93% | 1 | 20.00% |
| Total | 324 | 100.00% | 5 | 100.00% |
#undef OUT_BATCH
void i915_gem_render_state_fini(struct render_state *so)
{
i915_gem_object_ggtt_unpin(so->obj);
drm_gem_object_unreference(&so->obj->base);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chris wilson | chris wilson | 21 | 77.78% | 1 | 33.33% |
| mika kuoppala | mika kuoppala | 5 | 18.52% | 1 | 33.33% |
| oscar mateo | oscar mateo | 1 | 3.70% | 1 | 33.33% |
| Total | 27 | 100.00% | 3 | 100.00% |
int i915_gem_render_state_prepare(struct intel_engine_cs *engine,
struct render_state *so)
{
int ret;
if (WARN_ON(engine->id != RCS))
return -ENOENT;
ret = render_state_init(so, engine->dev);
if (ret)
return ret;
if (so->rodata == NULL)
return 0;
ret = render_state_setup(so);
if (ret) {
i915_gem_render_state_fini(so);
return ret;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mika kuoppala | mika kuoppala | 44 | 51.16% | 2 | 33.33% |
| oscar mateo | oscar mateo | 28 | 32.56% | 2 | 33.33% |
| chris wilson | chris wilson | 11 | 12.79% | 1 | 16.67% |
| tvrtko ursulin | tvrtko ursulin | 3 | 3.49% | 1 | 16.67% |
| Total | 86 | 100.00% | 6 | 100.00% |
int i915_gem_render_state_init(struct drm_i915_gem_request *req)
{
struct render_state so;
int ret;
ret = i915_gem_render_state_prepare(req->engine, &so);
if (ret)
return ret;
if (so.rodata == NULL)
return 0;
ret = req->engine->dispatch_execbuffer(req, so.ggtt_offset,
so.rodata->batch_items * 4,
I915_DISPATCH_SECURE);
if (ret)
goto out;
if (so.aux_batch_size > 8) {
ret = req->engine->dispatch_execbuffer(req,
(so.ggtt_offset +
so.aux_batch_offset),
so.aux_batch_size,
I915_DISPATCH_SECURE);
if (ret)
goto out;
}
i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), req);
out:
i915_gem_render_state_fini(&so);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mika kuoppala | mika kuoppala | 48 | 32.88% | 2 | 28.57% |
| arun siluvery | arun siluvery | 43 | 29.45% | 1 | 14.29% |
| oscar mateo | oscar mateo | 34 | 23.29% | 1 | 14.29% |
| chris wilson | chris wilson | 10 | 6.85% | 1 | 14.29% |
| john harrison | john harrison | 8 | 5.48% | 1 | 14.29% |
| tvrtko ursulin | tvrtko ursulin | 3 | 2.05% | 1 | 14.29% |
| Total | 146 | 100.00% | 7 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mika kuoppala | mika kuoppala | 393 | 48.94% | 3 | 25.00% |
| chris wilson | chris wilson | 198 | 24.66% | 1 | 8.33% |
| arun siluvery | arun siluvery | 125 | 15.57% | 1 | 8.33% |
| oscar mateo | oscar mateo | 63 | 7.85% | 2 | 16.67% |
| john harrison | john harrison | 8 | 1.00% | 1 | 8.33% |
| armin c reese | armin c reese | 7 | 0.87% | 1 | 8.33% |
| tvrtko ursulin | tvrtko ursulin | 6 | 0.75% | 2 | 16.67% |
| dave gordon | dave gordon | 3 | 0.37% | 1 | 8.33% |
| Total | 803 | 100.00% | 12 | 100.00% |
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