[Mesa-dev] [PATCH 1/2] intel: common: break has_hiz_and_separate_stencil into 2 flags

Lionel Landwerlin lionel.g.landwerlin at intel.com
Thu Jun 22 15:21:55 UTC 2017


Yeah I wasn't sure either.
I'll look into changing things to use the debug flags.

On 22/06/17 15:53, Jason Ekstrand wrote:
> Not a fan...  As a hardware feature, the two definitely go together. 
> The fact that both drivers identifiable hiz with an environment 
> variable is immaterial.  I think the correct reafactor here would be 
> to make the miptree code directly look at INTEL_DEBUG & DEBUG_NOHIZ 
> instead of whacking the context bit.
>
>
> On June 22, 2017 4:50:42 AM Iago Toral <itoral at igalia.com> wrote:
>
>> Reviewed-by: Iago Toral Quiroga <itoral at igalia.com>
>>
>> On Tue, 2017-06-20 at 23:42 +0100, Lionel Landwerlin wrote:
>>> i965's brw_context needs to disable hiz under some debug flag, so
>>> break this in 2 so we can configure this at runtime.
>>>
>>> Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
>>> ---
>>>  src/intel/common/gen_device_info.c       | 12 ++++++++----
>>>  src/intel/common/gen_device_info.h       |  3 ++-
>>>  src/intel/isl/isl.c                      |  4 ++--
>>>  src/mesa/drivers/dri/i965/brw_context.c  |  4 ++--
>>>  src/mesa/drivers/dri/i965/intel_screen.c |  2 +-
>>>  5 files changed, 15 insertions(+), 10 deletions(-)
>>>
>>> diff --git a/src/intel/common/gen_device_info.c
>>> b/src/intel/common/gen_device_info.c
>>> index 423748ea08c..0fbe5bbadd7 100644
>>> --- a/src/intel/common/gen_device_info.c
>>> +++ b/src/intel/common/gen_device_info.c
>>> @@ -76,7 +76,8 @@ static const struct gen_device_info
>>> gen_device_info_ilk = {
>>>  static const struct gen_device_info gen_device_info_snb_gt1 = {
>>>     .gen = 6,
>>>     .gt = 1,
>>> -   .has_hiz_and_separate_stencil = true,
>>> +   .has_hiz = true,
>>> +   .has_separate_stencil = true,
>>>     .has_llc = true,
>>>     .has_pln = true,
>>>     .has_surface_tile_offset = true,
>>> @@ -102,7 +103,8 @@ static const struct gen_device_info
>>> gen_device_info_snb_gt1 = {
>>>  static const struct gen_device_info gen_device_info_snb_gt2 = {
>>>     .gen = 6,
>>>     .gt = 2,
>>> -   .has_hiz_and_separate_stencil = true,
>>> +   .has_hiz = true,
>>> +   .has_separate_stencil = true,
>>>     .has_llc = true,
>>>     .has_pln = true,
>>>     .has_surface_tile_offset = true,
>>> @@ -127,7 +129,8 @@ static const struct gen_device_info
>>> gen_device_info_snb_gt2 = {
>>>
>>>  #define GEN7_FEATURES                               \
>>>     .gen = 7,                                        \
>>> -   .has_hiz_and_separate_stencil = true,            \
>>> +   .has_hiz = true,                                 \
>>> +   .has_separate_stencil = true,                    \
>>>     .must_use_separate_stencil = true,               \
>>>     .has_llc = true,                                 \
>>>     .has_pln = true,                                 \
>>> @@ -300,7 +303,8 @@ static const struct gen_device_info
>>> gen_device_info_hsw_gt3 = {
>>>
>>>  #define GEN8_FEATURES                               \
>>>     .gen = 8,                                        \
>>> -   .has_hiz_and_separate_stencil = true,            \
>>> +   .has_hiz = true,                                 \
>>> +   .has_separate_stencil = true,                    \
>>>     .has_resource_streamer = true,                   \
>>>     .must_use_separate_stencil = true,               \
>>>     .has_llc = true,                                 \
>>> diff --git a/src/intel/common/gen_device_info.h
>>> b/src/intel/common/gen_device_info.h
>>> index cc83857b759..23977455a3a 100644
>>> --- a/src/intel/common/gen_device_info.h
>>> +++ b/src/intel/common/gen_device_info.h
>>> @@ -48,7 +48,8 @@ struct gen_device_info
>>>     bool is_geminilake;
>>>     bool is_cannonlake;
>>>
>>> -   bool has_hiz_and_separate_stencil;
>>> +   bool has_hiz;
>>> +   bool has_separate_stencil;
>>>     bool must_use_separate_stencil;
>>>
>>>     bool has_llc;
>>> diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c
>>> index 2449ffb29ae..b37d410b61b 100644
>>> --- a/src/intel/isl/isl.c
>>> +++ b/src/intel/isl/isl.c
>>> @@ -66,7 +66,7 @@ isl_device_init(struct isl_device *dev,
>>>
>>>     /* Did we break hiz or stencil? */
>>>     if (ISL_DEV_USE_SEPARATE_STENCIL(dev))
>>> -      assert(info->has_hiz_and_separate_stencil);
>>> +      assert(info->has_hiz && info->has_separate_stencil);
>>>     if (info->must_use_separate_stencil)
>>>        assert(ISL_DEV_USE_SEPARATE_STENCIL(dev));
>>>
>>> @@ -1847,7 +1847,7 @@ isl_emit_depth_stencil_hiz_s(const struct
>>> isl_device *dev, void *batch,
>>>                               const struct
>>> isl_depth_stencil_hiz_emit_info *restrict info)
>>>  {
>>>     if (info->depth_surf && info->stencil_surf) {
>>> -      if (!dev->info->has_hiz_and_separate_stencil) {
>>> +      if (!(dev->info->has_hiz && dev->info->has_separate_stencil))
>>> {
>>>           assert(info->depth_surf == info->stencil_surf);
>>>           assert(info->depth_address == info->stencil_address);
>>>        }
>>> diff --git a/src/mesa/drivers/dri/i965/brw_context.c
>>> b/src/mesa/drivers/dri/i965/brw_context.c
>>> index 05b0d8d04ec..6e9ba1f5870 100644
>>> --- a/src/mesa/drivers/dri/i965/brw_context.c
>>> +++ b/src/mesa/drivers/dri/i965/brw_context.c
>>> @@ -947,8 +947,8 @@ brwCreateContext(gl_api api,
>>>     brw->is_cherryview = devinfo->is_cherryview;
>>>     brw->is_broxton = devinfo->is_broxton || devinfo->is_geminilake;
>>>     brw->has_llc = devinfo->has_llc;
>>> -   brw->has_hiz = devinfo->has_hiz_and_separate_stencil;
>>> -   brw->has_separate_stencil = devinfo-
>>> >has_hiz_and_separate_stencil;
>>> +   brw->has_hiz = devinfo->has_hiz;
>>> +   brw->has_separate_stencil = devinfo->has_separate_stencil;
>>>     brw->has_pln = devinfo->has_pln;
>>>     brw->has_compr4 = devinfo->has_compr4;
>>>     brw->has_surface_tile_offset = devinfo->has_surface_tile_offset;
>>> diff --git a/src/mesa/drivers/dri/i965/intel_screen.c
>>> b/src/mesa/drivers/dri/i965/intel_screen.c
>>> index 83b8a24509a..0ab352d7c6f 100644
>>> --- a/src/mesa/drivers/dri/i965/intel_screen.c
>>> +++ b/src/mesa/drivers/dri/i965/intel_screen.c
>>> @@ -1383,7 +1383,7 @@ intelCreateBuffer(__DRIscreen *dri_screen,
>>>     if (mesaVis->depthBits == 24) {
>>>        assert(mesaVis->stencilBits == 8);
>>>
>>> -      if (screen->devinfo.has_hiz_and_separate_stencil) {
>>> +      if (screen->devinfo.has_hiz && screen-
>>> >devinfo.has_separate_stencil) {
>>>           rb =
>>> intel_create_private_renderbuffer(MESA_FORMAT_Z24_UNORM_X8_UINT,
>>>                                                  num_samples);
>>>           _mesa_attach_and_own_rb(fb, BUFFER_DEPTH, &rb->Base.Base);
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