Commit graph

97 commits

Author SHA1 Message Date
Lionel Landwerlin
8d8b9d11c9 intel: decoder: enable decoding a single field
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 17:23:49 +00:00
Lionel Landwerlin
bb16503542 intel: decoder: expose missing find_enum()
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 17:23:49 +00:00
Lionel Landwerlin
ad876f721e intel: decoder: extract field value computation
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 17:23:49 +00:00
Lionel Landwerlin
81aee9fd4b intel: decoder: rename field() to field_value()
We would like to avoid collisions with variables named field.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 17:23:49 +00:00
Lionel Landwerlin
69d158573a intel: decoder: rename internal function to free name
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 17:23:49 +00:00
Lionel Landwerlin
20156931bf intel: decoder: simplify field_is_header()
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 17:23:49 +00:00
Lionel Landwerlin
cab93a901e intel: common: make intel utils available from C++
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 17:23:49 +00:00
Lionel Landwerlin
ea14ba0179 intel: decoder: remove unused platform field
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 17:23:49 +00:00
Lionel Landwerlin
38f338c19a intel: decoder: extract instruction/structs length
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:49:12 +00:00
Lionel Landwerlin
279531672e intel: decoder: pack iterator variable declarations
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:49:12 +00:00
Lionel Landwerlin
1cf1591abd intel: decoder: simplify creation of struct when 0-allocated
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:49:12 +00:00
Lionel Landwerlin
eb00b8b18c intel: decoder: add destructor for gen_spec
This makes use of ralloc to simplify the destruction. We can also
store instructions in hash tables.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:49:12 +00:00
Lionel Landwerlin
de213b4af8 intel: decoder: expose helper to test header fields
These fields are of little importance as they're used to recognize
instructions.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:19:20 +00:00
Lionel Landwerlin
68e1853ea3 intel: decoder: don't read qword outside instruction/struct limit
We used to print invalid data when the last field was being clamped to
32bits due to Dword Length of the whole instruction. Here is an
example where the decoder read part of the next instruction instead of
stopping at the 32bit limit:

0x000ce0b4:  0x10000002:  MI_STORE_DATA_IMM
0x000ce0b4:  0x10000002 : Dword 0
    DWord Length: 2
    Store Qword: 0
    Use Global GTT: false
0x000ce0b8:  0x00045010 : Dword 1
    Core Mode Enable: 0
    Address: 0x00045010
0x000ce0bc:  0x00000000 : Dword 2
0x000ce0c0:  0x00000000 : Dword 3
    Immediate Data: 8791026489807077376

With this change we have the proper value :

0x000ce0b4:  0x10000002:  MI_STORE_DATA_IMM (4 Dwords)
0x000ce0b4:  0x10000002 : Dword 0
    DWord Length: 2
    Store Qword: 0
    Use Global GTT: false
0x000ce0b8:  0x00045010 : Dword 1
    Core Mode Enable: 0
    Address: 0x00045010
0x000ce0bc:  0x00000000 : Dword 2
0x000ce0c0:  0x00000000 : Dword 3
    Immediate Data: 0

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:19:20 +00:00
Lionel Landwerlin
f5e5ca1e21 intel: decoder: split out getting the next field and decoding it
Due to the new way we handle fields, we need *not* to forget the first
field when decoding instructions. The issue was that the advance
function was called first and skipped the first field.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:19:20 +00:00
Lionel Landwerlin
ffa011d1e3 intel: decoder: move field name copy
This should be inside the function that actually decodes fields.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:19:20 +00:00
Lionel Landwerlin
0698318d1a intel: decoder: reorder iterator init function
Making the next change more readable.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:19:20 +00:00
Lionel Landwerlin
1b369acdd8 intel: common: print out all dword with field spanning multiple dwords
For example, we were skipping Dword 3 in this PIPE_CONTROL :

0x000ce130:  0x7a000004:  PIPE_CONTROL
    DWord Length: 4
0x000ce134:  0x00000010 : Dword 1
    Flush LLC: false
    Destination Address Type: 0 (PPGTT)
    LRI Post Sync Operation: 0 (No LRI Operation)
    Store Data Index: 0
    Command Streamer Stall Enable: false
    Global Snapshot Count Reset: false
    TLB Invalidate: false
    Generic Media State Clear: false
    Post Sync Operation: 0 (No Write)
    Depth Stall Enable: false
    Render Target Cache Flush Enable: false
    Instruction Cache Invalidate Enable: false
    Texture Cache Invalidation Enable: false
    Indirect State Pointers Disable: false
    Notify Enable: false
    Pipe Control Flush Enable: false
    DC Flush Enable: false
    VF Cache Invalidation Enable: true
    Constant Cache Invalidation Enable: false
    State Cache Invalidation Enable: false
    Stall At Pixel Scoreboard: false
    Depth Cache Flush Enable: false
0x000ce138:  0x00000000 : Dword 2
    Address: 0x00000000
0x000ce140:  0x00000000 : Dword 4
    Immediate Data: 0

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:19:20 +00:00
Lionel Landwerlin
3ae5c57916 intel: decoder: build sorted linked lists of fields
The xml files don't always have fields in order. This might confuse
our parsing of the commands. Let's have the fields in order. To do
this, the easiest way it to use a linked list. It also helps a bit
with the iterator.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:19:20 +00:00
Lionel Landwerlin
957a6eea7a intel: common: expose gen_spec fields
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-11-01 13:19:20 +00:00
Kenneth Graunke
28fcf5cd94 intel/genxml: Fix decoding of groups with fields smaller than a DWord.
Groups containing fields smaller than a DWord were not being decoded
correctly.  For example:

    <group count="32" start="32" size="4">
      <field name="Vertex Element Enables" start="0" end="3" type="uint"/>
    </group>

gen_field_iterator_next would properly walk over each element of the
array, incrementing group_iter, and calling iter_group_offset_bits()
to advance to the proper DWord.  However, the code to print the actual
values only considered iter->field->start/end, which are 0 and 3 in the
above example.  So it would always fetch bits 3:0 of the current DWord
when printing values, instead of advancing to each element of the array,
printing bits 0-3, 4-7, 8-11, and so on.

To fix this, we add new iter->start/end tracking, which properly
advances for each instance of a group's field.

Caught by Matt Turner while working on 3DSTATE_VF_COMPONENT_PACKING,
with a patch to convert it to use an array of bitfields (the example
above).

This also fixes the decoding of 3DSTATE_SBE's "Attribute Active
Component Format" fields.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2017-10-30 20:22:55 -07:00
Lionel Landwerlin
a1faf48636 intel: common: silence compiler warning
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2017-10-30 17:15:50 +00:00
Eric Engestrom
2515eb63f8 meson: move expat dependency where it's needed
Suggested-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
2017-10-18 14:27:20 +01:00
Chad Versace
aa716db0f6 intel: Add simple logging façade for Android (v2)
I'm bringing up Vulkan in the Android container of Chrome OS (ARC++).

On Android, stdio goes to /dev/null. On Android, remote gdb is even more
painful than the usual remote gdb. On Android, nothing works like you
expect and debugging is hell. I need logging.

This patch introduces a small, simple logging API that can easily wrap
Android's API. On non-Android platforms, this logger does nothing fancy.
It follows the time-honored Unix tradition of spewing everything to
stderr with minimal fuss.

My goal here is not perfection. My goal is to make a minimal, clean API,
that people hate merely a little instead of a lot, and that's good
enough to let me bring up Android Vulkan.  And it needs to be fast,
which means it must be small. No one wants to their game to miss frames
while aiming a flaming bow into the jaws of an angry robot t-rex, and
thus become t-rex breakfast, because some fool had too much fun desiging
a bloated, ideal logging API.

If people like it, perhaps we should quickly promote it to src/util.

The API looks like this:

    #define INTEL_LOG_TAG "intel-vulkan"
    #define DEBUG

    intel_logd("try hard thing with foo=%d", foo);

    n = try_foo(...);
    if (n < 0) {
        intel_loge("%s:%d: foo failed bigtime", __FILE__, __LINE__);
        return VK_ERROR_DEVICE_LOST;
    }

And produces this on non-Android:

    intel-vulkan: debug: try hard thing with foo=93
    intel-vulkan: error: anv_device.c:182: foo failed bigtime

v2: Fix meson build. [for dcbaker]

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-10-17 11:08:26 -07:00
Jason Ekstrand
9cec35579c intel/common: Improve the comments for sample positions
These are pulled directly from brw_multisample_state.h

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-10-16 08:04:56 -07:00
Matt Turner
4c961a5e79 i965: Add parentheses around usage of macro arguments
Otherwise I cannot use this macro in test_eu_validate.cpp

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
2017-10-04 14:08:54 -07:00
Dylan Baker
d1992255bb meson: Add build Intel "anv" vulkan driver
This allows building and installing the Intel "anv" Vulkan driver using
meson and ninja, the driver has been tested against the CTS and has
seems to pass the same series of tests (they both segfault when the CTS
tries to run wayland wsi tests).

There are still a mess of TODO, XXX, and FIXME comments in here. Those
are mostly for meson bugs I'm trying to fix, or for additional things to
implement for other drivers/features.

I have configured all intermediate libraries and optional tools to not
build by default, meaning they will only be built if they're pulled in
as a dependency of a target that will actually be installed) this allows
us to avoid massive if chains, while ensuring that only the bits that
need to be built are.

v2: - enable anv, x11, and wayland by default
    - add configure option to disable valgrind
v3: - fix typo in meson_options (Nicholas)
v4: - Remove dead code (Eric)
    - Remove change to generator that was from v0 (Eric)
    - replace if chain with loop (Eric)
    - Fix typos (Eric)
    - define HAVE_DLOPEN for both libdl and builtin dl cases (Eric)
v5: - rebase on util string buffer implementation

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net> (v4)
2017-09-27 09:12:19 -07:00
Anuj Phogat
f2723980b9 Revert "intel: Remove unused device info for KBL GT1.5"
This reverts commit 4c4c28ca70.

GT1.5 device info is required for few reserved pci-id's.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
2017-09-21 14:12:19 -07:00
Kenneth Graunke
4f8d1af0f6 i965: Add an INTEL_DEBUG=reemit option.
Jason and I use this for debugging all the time.  Recompiling the driver
to enable it is kind of annoying.  It's a great thing to try along with
always_flush_batch=true and always_flush_cache=true to detect a class of
problems - namely, atoms listening to an insufficient set of dirty bits.

Reviewed-by: Matt Turner <mattst88@gmail.com>
2017-09-15 21:51:45 -07:00
Kenneth Graunke
edfd8d42a9 i965: Add an INTEL_DEBUG=submit option for printing batch statistics.
When a batch is submitted, INTEL_DEBUG=bat prints a message indicating
which part of the code triggered the flush, and some statistics about
the batch/state buffer utilization.

It also decodes the batchbuffer in debug builds...which is so much
output that it drowns out the utilization messages, if that's all you
care about.

INTEL_DEBUG=submit now just does the utilization messages.
INTEL_DEBUG=bat continues to do both (as the message is a good indicator
that we're starting decode of a new batch).

v2: Rename from "flush" to "submit" (suggested by Chris) because we
    might want "flush" for PIPE_CONTROL debugging someday.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-09-13 13:52:38 -07:00
Anuj Phogat
4c4c28ca70 intel: Remove unused device info for KBL GT1.5
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2017-09-06 10:09:38 -07:00
Eric Anholt
decd2b32aa intel/decoder: Reuse the gen_make_gen() helper.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-07-25 14:44:52 -07:00
Eric Anholt
19ffa4bfb2 intel/decoder: Reuse the MAX2 macro instead of defining another one.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-07-25 14:44:52 -07:00
Lionel Landwerlin
384aaa4d3f intel: add number of subslices to device info
We could have used a single integer to store that value, but
Cannonlake has different number of subslices per slice depending on
the GT.

v2: Add CFL subslice numbers (Lionel)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
2017-07-11 16:14:57 +01:00
Kenneth Graunke
c2c37f5185 intel: Fix clflushing on modern (Baytrail+) Atom CPUs.
Thanks to Chris Wilson for pointing this out.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-07-10 15:55:26 -07:00
Kenneth Graunke
3e50607a40 intel: Move clflush helpers from anv to common/gen_clflush.h.
I want to use these in the OpenGL driver as well.

v2: Add to COMMON_FILES in Makefile.sources (caught by Emil)

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2017-07-10 15:55:19 -07:00
Anusha Srivatsa
de7ed0ba55 i965/CFL: Add PCI Ids for Coffee Lake.
Coffee Lake has a gen9 graphics following KBL.
From 3D perspective, CFL is a clone of KBL/SKL features.

v2: Change commit message, correct alignment <Anuj Phogat>
v3: Update IDs.
v4: Initialize l3_banks, correct nomenclature <Anuj>

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Acked-by: Benjamin Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2017-06-22 14:28:43 -07:00
Lionel Landwerlin
030abc6109 intel: compiler/i965: fix is_broxton checks
In 5f2fe9302c is_geminilake was introduced for the differenciate
broxton from geminilake. Unfortunately I failed as verifying that
is_broxton is throughout the code base to mean Gen9lp.

Fixes: 5f2fe9302c ("intel: common: add flag to identify platforms by name")
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2017-06-20 23:26:42 +01:00
Ben Widawsky
3e1055591b i965/cnl: Add l3 configuration for Cannonlake
V2 (Anuj):
Squash the changes in one patch rebase on master.
Address the review comments made by Francisco Jerez.
Do the URB allocation per slice (not per bank).

V3 (Anuj):
Update the comment.
Format the table as other l3 config tables.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
---
V1 was sent out with the heading:
"i965/cnl: Properly handle l3 configuration"
2017-06-20 12:18:26 -07:00
Anuj Phogat
1024dad4d9 i965: Add a variable for way size per bank in get_l3_way_size()
Adding this variable better explains the computation of L3 way
size in the function.

V2: Use const variable for way_size_per_bank.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
2017-06-20 12:18:26 -07:00
Anuj Phogat
8521559e08 i965: Fix broxton 2x6 l3 config
The new table added in this patch matches with the table
in gfxspecs. We were programming the wrong values earlier.

V2: Update the comment.

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
2017-06-20 12:18:26 -07:00
Lionel Landwerlin
6d759cbd49 intel: common: add number of thread per eu
This will be used by to normalize OA counters.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2017-06-19 22:11:00 +01:00
Lionel Landwerlin
c77d98ef32 intel: common: express timestamps units in frequency
Rather than storing the period as a double that looses some precision.

Also fixes the Gen9LP timestamp frequency which is no 19200123 but
19200000 as pointed by Ville :

https://lists.freedesktop.org/archives/intel-gfx/2017-April/125126.html

Finally add the Cannonlake timestamp frequency.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2017-06-19 22:11:00 +01:00
Lionel Landwerlin
5f2fe9302c intel: common: add flag to identify platforms by name
The perf infrastructure needs to identify specific platforms, not just
generations.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2017-06-19 22:11:00 +01:00
Ben Widawsky
e179a3438a i965/cnl: Add a preliminary device for Cannonlake
v2 (Anuj):
Rebased on master and updated pci ids
Remove redundant initialization of max_wm_threads to 64 * 12.
For gen9+ max_wm_threads are initialized in gen_get_device_info().

v3 (Anuj):
Move the patch to end of series.
Remove unused gt1, gt2, gt3 functions.
Remove l3_banks variable. Variable is now available on master.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2017-06-09 16:03:00 -07:00
Anuj Phogat
111881abac i965/cnl: Handle gen10 in switch cases across the driver
V2: Start using gen10 functions isl_gen10*(), gen10_blorp_exec()
    gen10_init_atoms() (Jason)
    Remove Vulkan changes. Do them later in a separate patch.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-06-09 16:02:59 -07:00
Ben Widawsky
d968f072bc i965: Make feature macros gen8 based
All the "features" of the hardware are similar starting with GEN8, so remove as
much of the GEN9 uniqueness as possible. This makes implementing future gen
platforms a bit easier.

Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-06-09 15:27:14 -07:00
Anuj Phogat
8d02916e0c intel: Fix broxton 2x6 way size computation
This patch is undoing the changes to way size computation
in broxton 2x6, made by below commit:

Commit: 0d576fbfbe
Author:     Anuj Phogat <anuj.phogat@gmail.com>
i965: Simplify l3 way size computations

By making use of l3_banks field in gen_device_info struct
l3_way_size for gen7+ = 2 * l3_banks.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101306
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Tested-by: Mark Janes <mark.a.janes@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
2017-06-06 21:30:51 -07:00
Lionel Landwerlin
2ef73473c8 intel: gen-decoder: rework how we handle groups
The current way of handling groups doesn't seem to be able to handle
MI_LOAD_REGISTER_* with more than one register. This change reworks
the way we handle groups by building a traversal list on loading the
GENXML files.

Let's say you have

Instruction {
  Field0
  Field1
  Field2
  Group0 (count=2) {
    Field0-0
    Field0-1
  }
  Group1 (count=4) {
    Field1-0
    Field1-1
  }
}

We build of linked on load that goes :

Instruction -> Group0 -> Group1

All of those are gen_group structures, making the traversal trivial.
We just need to iterate groups for the right number of timers (count
field in genxml).

The more fancy case is when you have only a single group of unknown
size (count=0). In that case we keep on reading that group for as long
as we're within the DWordLength of that instruction.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
2017-06-06 14:04:37 +01:00
Kenneth Graunke
9cd69022d5 i965: Change INTEL_DEBUG=vec4 to INTEL_SCALAR_VS for consistency.
We moved to INTEL_SCALAR_* when we added more than a single stage, but
never went back and converted the VS to work that way.  Be consistent.

Also update the documentation to actually mention these debug variables.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>
2017-06-05 23:32:40 -07:00