Andreas Sandberg [Wed, 9 Jan 2019 14:51:33 +0000 (14:51 +0000)]
sim-se: Correctly calculate next PC in clone
The clone syscall doesn't propagate all state in the PCState object
when calculating the return PC of a newly created process. Instead of
creating a new PCState object from the next PC address, copy the old
PC and advance it.
Change-Id: Ice53831920bcb5d198865169ed2cca8d06e37cfe
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Cc: Giacomo Travaglini <giacomo.travaglini@arm.com>
Cc: Javier Setoain <javier.setoain@arm.com>
Cc: Brandon Potter <Brandon.Potter@amd.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15417
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Andreas Sandberg [Wed, 9 Jan 2019 14:31:52 +0000 (14:31 +0000)]
sim-se: Use CONFIG_CLONE_BACKWARDS for Arm
Linxu on Arm users the CLONE_BACKWARDS argument order for the clone
syscall.
Change-Id: I48deb4f03140c9d4ef7a89e3e33813e76777f999
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Cc: Giacomo Travaglini <giacomo.travaglini@arm.com>
Cc: Javier Setoain <javier.setoain@arm.com>
Cc: Brandon Potter <Brandon.Potter@amd.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15416
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Javier Setoain [Wed, 9 Jan 2019 12:52:20 +0000 (12:52 +0000)]
arch-arm, sim-se: Wire up syscalls needed for pthreads
Change-Id: I8da5e3e0d7dc5d31ac82ed2045109d6d73cbf99d
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Cc: Giacomo Travaglini <giacomo.travaglini@arm.com>
Cc: Javier Setoain <javier.setoain@arm.com>
Cc: Brandon Potter <Brandon.Potter@amd.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15415
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Jairo Balart [Tue, 13 Nov 2018 09:58:31 +0000 (10:58 +0100)]
dev-arm: Add a VExpress_GEM5_V2 platform with GICv3 support
Change-Id: I6fd14138d94654e8e60cde08239ea9a50fc19eb7
Reviewed-on: https://gem5-review.googlesource.com/c/14255
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Jairo Balart [Thu, 11 Oct 2018 14:05:12 +0000 (16:05 +0200)]
dev-arm: Add a GICv3 model
Change-Id: Ib0067fc743f84ff7be9f12d2fc33ddf63736bdd1
Reviewed-on: https://gem5-review.googlesource.com/c/13436
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Giacomo Travaglini [Tue, 8 Jan 2019 10:17:39 +0000 (10:17 +0000)]
base: Make it possible to convert strings to enums
The __to_number helper function defined in base/str.hh is used by
unserializing code. Its purpose is to convert a string into an
integral/floating point number. Since enums underlying type can only be
an integer type, it makes sense to extend the helper function for enums
as well. In this way it will be possible to unserialize Enums and
containers of Enums without the need of casting.
Change-Id: I74069cc4c04ec8b5eb80939acea7ab18fb366dd4
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Ciro Santilli <ciro.santilli@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15336
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Gabe Black [Thu, 10 Jan 2019 03:04:53 +0000 (19:04 -0800)]
systemc: Fix a function which was broken during style fixes.
Some brackets were misapplied while correcting the style of the TLM
header files.
Change-Id: I4e26d0316ca2545a5f26ad5fef0e986e42a1895b
Reviewed-on: https://gem5-review.googlesource.com/c/15455
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Ivan Pizarro [Thu, 20 Dec 2018 14:25:15 +0000 (15:25 +0100)]
arch-arm: Additional bits in misc ARM registers to use with the TLB and page walker
Change-Id: I71a6360709b35ad788d8c88fba1a7a2761233dbd
Reviewed-on: https://gem5-review.googlesource.com/c/14555
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Gabe Black [Wed, 12 Dec 2018 08:17:00 +0000 (00:17 -0800)]
systemc: Make input.txt a dependency for the tlm/endian_conv test.
This input file is consumed by the test and needs to be in the build
directory.
Change-Id: I3420dec9e41a1981c7d4e6df47f03273e378ab66
Reviewed-on: https://gem5-review.googlesource.com/c/15064
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Wed, 12 Dec 2018 23:47:07 +0000 (15:47 -0800)]
systemc: Exclude some failing systemc TLM tests in working.filt.
These are known to fail and are undiagnosed, and so are not "working"
and shouldn't be in included when using the working.filt filter file.
Change-Id: I46e9f880bd4095085e4217ac6bec950cb2af9536
Reviewed-on: https://gem5-review.googlesource.com/c/15066
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Tue, 11 Dec 2018 07:37:24 +0000 (23:37 -0800)]
systemc: Remove the TLM dependence on a non-standard method.
The sc_event_finder class in Accellera's implementation has a
non-standard report_error function that it uses internally. The TLM
headers were calling that function in their own event finder subclass.
This change replaces that call with what should be an equivalent bit of
code which is based on the report_error implementation.
Change-Id: Id57d26791df01403a77e70d5f4a00f650dc33599
Reviewed-on: https://gem5-review.googlesource.com/c/15063
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Thu, 3 Jan 2019 22:30:14 +0000 (14:30 -0800)]
systemc: Stop using the sc_string_view type.
It doesn't seem to provide anything more that std::string, and comes
with extra dependencies/baggage.
Change-Id: I2c599bcc93fa4a944ff249410d24e8f8be981afe
Reviewed-on: https://gem5-review.googlesource.com/c/15298
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Thu, 3 Jan 2019 21:57:27 +0000 (13:57 -0800)]
systemc: Replace sc_core::sc_type_index with std::type_index.
The former is either the same as the later, or a custom wrapper if
C++11 isn't supported. Since we generally expect C++11 support, we can
skip the indirection.
Change-Id: I9a45e3854bb7cc56d094e3fe2773fe4b5c94403b
Reviewed-on: https://gem5-review.googlesource.com/c/15297
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Thu, 3 Jan 2019 06:14:23 +0000 (22:14 -0800)]
systemc: Stop using the Accellera specific "none" global event object.
That event being available is nonstandard. Define our own static event
for use in that case.
Change-Id: I5e8892bd83cc1984d63949ef3e249755dca0c702
Reviewed-on: https://gem5-review.googlesource.com/c/15296
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Thu, 13 Dec 2018 00:43:18 +0000 (16:43 -0800)]
systemc: Rename tlm_core header files to have a .hh extentension.
This makes those files more consistent with other headers in gem5. The
top level headers (tlm and tlm.h) and the tlm_utils headers were left
alone since the user might reasonably expect those to have a well known
name. The tlm_core headers by comparison are an implementation detail,
and users shouldn't include them directly by name.
Change-Id: Ibc82e8159e47717c79d76f50ed96fdd619294a06
Reviewed-on: https://gem5-review.googlesource.com/c/15067
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Wed, 12 Dec 2018 08:17:46 +0000 (00:17 -0800)]
systemc: Add a dummy argv[0] when running the tests.
One TLM test will complain if argc isn't 1 or 2, assuming that that
must mean that argc > 2. If it's 0 then the test will also complain and
fail. We therefore need to pass it at least a dummy value in argv/argc.
Change-Id: I5c64856f46d1459d7238e88ad8ba06933c7c38b8
Reviewed-on: https://gem5-review.googlesource.com/c/15065
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Tue, 11 Dec 2018 07:21:39 +0000 (23:21 -0800)]
systemc: Stop using the non-standard sc_time % in TLM.
The TLM headers were using the non-standard % operator on sc_time.
This change replaces that with % applied to the result of
sc_time::value().
Change-Id: Ic381eb1ada2c994d04e65896db178f58446944ae
Reviewed-on: https://gem5-review.googlesource.com/c/15062
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Tue, 11 Dec 2018 07:19:56 +0000 (23:19 -0800)]
systemc: Add an elaboration_done method to sc_simcontext.
The TLM headers rely on this non-standard function.
Change-Id: Iaedec35f1f363dcf3e1fcdb58a74eb2cdc05ddc0
Reviewed-on: https://gem5-review.googlesource.com/c/15061
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Tue, 11 Dec 2018 07:16:19 +0000 (23:16 -0800)]
systemc: Include cstring in the tlm header file.
A lot of TLM implementation assumes the string functions (memcpy,
memset, etc) are available, but don't include cstring. Lets do that
for them to avoid having to fix up a lot of places.
Change-Id: I1f26d3a227fe2cefc2613e24cbb0333216e46ee9
Reviewed-on: https://gem5-review.googlesource.com/c/15060
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Tue, 11 Dec 2018 07:02:13 +0000 (23:02 -0800)]
systemc: Remove redundant tlm_ prefixes from file names.
We already know those files belong to tlm because of the directory
they're in. Removing the prefix makes the paths of the headers less
enormously long.
Change-Id: I869e58fae904162f353bb31f4c0919fba08dffa6
Reviewed-on: https://gem5-review.googlesource.com/c/15059
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Thu, 13 Dec 2018 00:07:58 +0000 (16:07 -0800)]
systemc: Replace some calls to some Accellera specific functions in TLM.
The TLM event finder class was calling implementation specific
functions from the Accellera version of systemc. This change replaces those
calls with equivalent calls which match the gem5 implementation.
Change-Id: I0ecdb0a4bf09aeb1aad823a01105fbd88edb4601
Reviewed-on: https://gem5-review.googlesource.com/c/15075
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Thu, 3 Jan 2019 05:16:38 +0000 (21:16 -0800)]
systemc: Rename tlm .cpp files to .cc and add SConscripts.
Change-Id: Ia30192b441dd34bc7165c6335386c88c0015fdf6
Reviewed-on: https://gem5-review.googlesource.com/c/15295
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Sat, 8 Dec 2018 10:05:34 +0000 (02:05 -0800)]
systemc: Fix style issues in the TLM header files.
Change-Id: Id12ffb9b56b3887afcf30120f81ce5eb75a5987b
Reviewed-on: https://gem5-review.googlesource.com/c/15057
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Sat, 8 Dec 2018 09:59:34 +0000 (01:59 -0800)]
systemc: Also look for tests in the tlm test directory.
Both basic systemc and tlm tests were present, but scons only looked
in the systemc directory when populating the test json. This change
makes it also look in the tlm directory so that those tests can be run.
Change-Id: Id65b744664350f6105fb3a4f28cbc7ab91d8c82e
Reviewed-on: https://gem5-review.googlesource.com/c/15056
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Gabe Black [Sat, 8 Dec 2018 09:58:26 +0000 (01:58 -0800)]
systemc: Initial import of TLM headers from Accellera.
These headers will need to be cleaned up and have some Accellera
specific quirks ironed out of them, but I'll do that in a later change
to make it clear what those changes are.
Change-Id: Ia4e08633ab552b4c616c66c9b7e2bbd78ebfe7b9
Reviewed-on: https://gem5-review.googlesource.com/c/15055
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Jairo Balart [Tue, 13 Nov 2018 10:02:46 +0000 (11:02 +0100)]
system-arm: Add device tree for new VExpress GEM5_V2 platform
Change-Id: Ifc2b91afe5b88a656b4ed1c64ab6cca97f082034
Reviewed-on: https://gem5-review.googlesource.com/c/14275
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Jairo Balart [Thu, 11 Oct 2018 14:03:24 +0000 (16:03 +0200)]
system-arm: Add aarch64 bootloader support for GICv3
Change-Id: If75262709868cc59d320f60273a32397339f1dd5
Signed-off-by: Jairo Balart <jairo.balart@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/13435
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Nikos Nikoleris [Sun, 23 Dec 2018 11:16:27 +0000 (11:16 +0000)]
scons: Disable partial linking on Mac OS
Up until Apple LLVM version 10.0.0 (clang-1000.11.45.5), partial
linked objects do not expose symbols that are marked with the hidden
visibility and consequently building gem5 on Mac OS fails. As a
workaround, we disable partial linking, however, we may want to
revisit in the future.
Change-Id: I0a26dae082bf723c2bd49d90e4497e44ecab9c41
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15235
Reviewed-by: Andrea Mondelli <andrea.mondelli@ucf.edu>
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Jan-Peter Larsson [Thu, 20 Dec 2018 15:55:56 +0000 (15:55 +0000)]
dev, arm: Warn on PL011 DMA disable
The PL011 spec specifies a DMACR register at offset 0x48, which isn't
implemented in the model. Currently any attempt to access the register
results in a panic.
This change swaps the panic for a warning only when software writes into
DMACR to disable DMA, keeping the panic otherwise.
Change-Id: I04586b52df8d5d174536276fd7ae19e77ff4681a
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15279
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Anouk Van Laer [Wed, 7 Nov 2018 14:04:47 +0000 (14:04 +0000)]
dev-arm: Added VGIC GICV_IIDR response
Change-Id: I60e8eadbbbf07c0f8b726213fd580aeb0dd0e00b
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Anouk Van Laer <anouk.vanlaer@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15278
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Giacomo Travaglini [Fri, 21 Dec 2018 10:26:55 +0000 (10:26 +0000)]
dev-arm: Implement GIC-400 model from GicV2
Implementation registers for the GICv2 model currently hold values
referring to a GIC-400 implementation. This patch is making them
parametrizable so that it is possible to instantiate a GIC-400 model.
The patch is also modifying Realview platform to use new GIC-400 model
in lieau of GICv2.
Change-Id: I446db8c796ee3c2708af91e9139f0a6e7947321b
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15277
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Giacomo Travaglini [Thu, 20 Dec 2018 17:31:42 +0000 (17:31 +0000)]
dev-arm: Move VGic from Realview.py to Gic.py
Change-Id: I17f2fb6be2435d4601263e7f68a0582e0cc70838
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15276
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Anouk Van Laer [Thu, 27 Sep 2018 15:49:30 +0000 (16:49 +0100)]
dev-arm: Added unimplemented GICv2 GICC_DIR
This GICC CPU register is not implemented but just gives a warning.
Change-Id: I7630aa1df78dde5cf84a87e26cd580b00b283673
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Anouk Van Laer <anouk.vanlaer@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15275
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Curtis Dunham [Mon, 7 May 2018 23:06:08 +0000 (18:06 -0500)]
arm: properly handle RES0/1 for SCTLRs
They were being treated as RAZ/RAO, which is incorrect.
Put the access masks in the register metadatabase now that we have one.
Also fix this for HVBAR.
Change-Id: I097c847e35be2d59fb8235fc621bb061ef514cfb
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/10401
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Gabe Black [Tue, 20 Nov 2018 01:30:06 +0000 (17:30 -0800)]
cpu: Stop using unions to store FP registers.
These are now accessed only as integer values.
Change-Id: I21ae6537ebbcbaa02890384194ee1ce001c092bb
Reviewed-on: https://gem5-review.googlesource.com/c/14458
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Tue, 20 Nov 2018 01:20:31 +0000 (17:20 -0800)]
arch, cpu: Remove float type accessors.
Use the binary accessors instead.
Change-Id: Iff1877e92c79df02b3d13635391a8c2f025776a2
Reviewed-on: https://gem5-review.googlesource.com/c/14457
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
Giacomo Travaglini [Thu, 20 Sep 2018 13:13:11 +0000 (14:13 +0100)]
arch-arm: Add Crypto in SE mode
This patch is also enabling AArch32 crypto instructions by setting the
ID_ISAR5 register accordingly.
Change-Id: Id412585b39b78570a65bd3047199c84e9db76cda
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15155
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Nikos Nikoleris [Mon, 17 Dec 2018 15:50:04 +0000 (15:50 +0000)]
systemc: Allow specific functions to shadow the base class method
sc_in::bind and sc_core::sc_object::print shadow their respective base
class method. This change adds the necessary declarations to inform
the compiler that this is intentional.
Change-Id: I8c6bc0f05aa568630783db63d52be90f4ea4748c
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15135
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Nikos Nikoleris [Sun, 2 Dec 2018 18:39:32 +0000 (18:39 +0000)]
scons: Disable systemc on Mac OS
LLVM on Mac OS up until version 10.0.0 doesn't seem to support the
attribute for weak linking and fails to compile. Additionally, even
the basic example tests fail. Therefore, this change disables systemc
by default on Mac OS until we address these issues.
Change-Id: Iaa6360ec61317e01f4e645af8b509961b3144282
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14818
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Tue, 20 Nov 2018 00:50:41 +0000 (16:50 -0800)]
arch: Make the ISA parser always use binary floating point accessors.
Any operands which use read_code or write_code would need to start
using the floatToBits and bitsToFloat, but only ARM is using that
mechanism, and not on float operands.
Also I notice that the "predicate" mechanism for operands ignores the
read_code and write_code mechanism, and using both will not work
correctly. This change makes no attempt to fix that problem, but
shouldn't contribute to it either.
Change-Id: I0e3a7f78ed28f40cb66958ef12c32e862950fde0
Reviewed-on: https://gem5-review.googlesource.com/c/14456
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Wed, 5 Dec 2018 00:17:30 +0000 (16:17 -0800)]
systemc: Ensure resets and edges are notified when signaling a change.
Boolean sc_buffers (either pure bool or sc_dt::sc_logic) should signal
positive and negative edges and resets even when their value doesn't
change, unlike sc_signals. The spec doesn't actually say that and just
mentions the value changed event, but it may have been implied that the
other types of events also happen, they just made special mention of
the value change event.
This change moves some code around a bit so that when _signalChange()
is called, if the underlying type is a boolean signal, it will
automatically notify the appropriate edge event and signal any reset.
Putting the functionality in _signalChange instead of delegating it to
the sc_buffer lets us have a single template for sc_buffer and makes
the base class template specialization handle whether the edge events
exist, and if so which should be notified.
Change-Id: Ic4ca86afc3fde6a9df5c15a0a7386e24ac89a9e2
Reviewed-on: https://gem5-review.googlesource.com/c/14916
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Pau Cabre [Sat, 1 Dec 2018 23:20:13 +0000 (00:20 +0100)]
cpu: Fixed typos in parameter/stats descriptions
Change-Id: I7b3274a3e37128da35f497da150af08343e97ee6
Signed-off-by: Pau Cabre <pau.cabre@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14795
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Ilias Vougioukas <ilias.vougioukas@arm.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Pau Cabre [Fri, 23 Nov 2018 22:29:35 +0000 (23:29 +0100)]
cpu: Added parameters to enable/disable features in LTAGE
They are for the following features in the LTAGE loop predictor:
- Hashing for calculating the loop table entry
- Add direction information
- Add speculative iteration number information
Change-Id: I395f4526163ee0d0229d1e87cde2bb046f1dd43a
Signed-off-by: Pau Cabre <pau.cabre@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14597
Reviewed-by: Ilias Vougioukas <ilias.vougioukas@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Louis Delhez <ldelhez@ucla.edu>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tony Gutierrez [Tue, 11 Dec 2018 00:20:06 +0000 (19:20 -0500)]
cpu-o3: Fix bug in LSQUnit(uint32_t, uint32_t) ctor
Change
9af1214 added a new ctor to the LSQUnit, however
there is a typo/bug because it sizes the SQEntries
member variable to lqEntries + 1, as opposed to
sqEntries + 1. This change corrects the issue by
using sqEntries.
Change-Id: I19dfaa5c0e335bd7b84343a92034147d7c5d914e
Reviewed-on: https://gem5-review.googlesource.com/c/15015
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Gabe Black [Thu, 6 Dec 2018 02:02:14 +0000 (18:02 -0800)]
systemc: Update test output for longer lived processes.
In the systemc spec, process handles can be invalidated if they have no
children and are terminated. The implementation is not required to do
so however, and for the sake of simplicity gem5 currently does not. To
quote:
"When the underlying process instance terminates, if the process
instance has no surviving children, an implementation may choose to
invalidate any associated process handles, but it is not obliged to do
so."
Two tests have reference output which is affected by this (legal)
difference in behavior. In one case, the test creates new processes
which reuse the names of processes that have been terminated. Since
gem5 doesn't invalidate the old processes, a standard mechanism is
activated which renames the processes to something which is unique.
The other test has this same problem, and also prints the hierarchy
of processes several times during the test. In that hierarchy, the
terminated tests with no live children are still present, where in the
old reference output they've been removed.
This change updates the reference output to match gem5's behavior.
Change-Id: I363448de10080bdce01a4df92f991c67b31a2401
Reviewed-on: https://gem5-review.googlesource.com/c/14919
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Wed, 5 Dec 2018 00:30:45 +0000 (16:30 -0800)]
systemc: Update the ordering in the reference output for some tests.
There are a number of cases where systemc leaves the decision of what
order things happen up to the kernel, and any ordering is legal and
conformant with the spec as long as it's repeatable. The reference
outputs reflect a particular choice of ordering which is implementation
specific, and while considerable effort has been made to make the gem5
ordering match the Accellera ordering, at a certain point that's no
longer practical or desirable.
This change manually updates the reference output for the tests that
haven't been excluded for other reasons which have this sort of ordering
problem. They have been individually examined, and as best as I can
tell changing the output this way does not mask any underlying error.
One or two real problems were discovered in addition to the ordering
issues, and those were fixed in earlier changes.
Change-Id: I915269998de3f33d5ab5d1fd754a830fd620184d
Reviewed-on: https://gem5-review.googlesource.com/c/14918
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 6 Dec 2018 01:45:31 +0000 (17:45 -0800)]
systemc: Ignore process control functions on terminated processes.
These functions can descend to the children of a terminated process,
but should have no effect on that process itself.
Change-Id: I6e4bdec8c492dd03d05bc1397aa080e8a51397c1
Reviewed-on: https://gem5-review.googlesource.com/c/14917
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Sat, 1 Dec 2018 00:57:02 +0000 (16:57 -0800)]
systemc: Update signals before initing processes.
We were supposed to do one update phase before adding all processes
which didn't have dont_initialize() called to the run queue. We were
doing that in the opposite order.
Change-Id: I6dd4108040d455dc78029da029a2eb5e7af819cb
Reviewed-on: https://gem5-review.googlesource.com/c/14915
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Maintainer: Gabe Black <gabeblack@google.com>
Giacomo Travaglini [Fri, 7 Dec 2018 11:21:24 +0000 (11:21 +0000)]
base, systemc: Fix clang compilation
This patch is fixing the following issues:
- base: typename should be used only for types
- systemc: 'GCC_VERSION' is not defined for clang
Change-Id: I27c94445d65691a08a0a14a0ffe6b6942f6c455f
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14976
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
Giacomo Travaglini [Fri, 7 Dec 2018 11:05:55 +0000 (11:05 +0000)]
mem: Compile tracePacket only when TRACING_ON is defined
If TRACING_ON is not defined (e.g. when building gem5.fast), clang
compilations will fail reporting an unused function.
Change-Id: I959dba6e9fcf74b951e16365077939ae4d4ef924
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14975
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Daniel R. Carvalho [Fri, 7 Dec 2018 09:50:31 +0000 (10:50 +0100)]
mem-cache: Workaround for setWhenReady assertion
Change
174da8e2da6a896d2e97bc264f9c827a0f4c35ac added an assert that
is not satisfiable with current implementation, breaking some
regression tests.
Change-Id: Ibafaf0c51906384364f0b2a4b931f8ec6126d858
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/14955
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Matteo Andreozzi [Tue, 2 Oct 2018 14:33:28 +0000 (15:33 +0100)]
ext: Remove unused bankwiseMode variable
Apple LLVM version 10.0.0 (clang-1000.11.45.2) complains about
unused members variables
Change-Id: If1f2210c09e80b632cb3688aaa7df0594f9e49c9
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/13228
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Rekai Gonzalez-Alberquilla [Thu, 6 Apr 2017 11:27:20 +0000 (12:27 +0100)]
base: Ported circlebuf to CircularQueue
Ported the existing circlebuf on top of the CircularQueue to condense
shared functionality and minimise code/functionality replication.
Additional contributors: Gabor Dozsa.
Change-Id: Ib4e67c638f0fb66b54cef77007a03439218bda7f
Signed-off-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com>
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/13128
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Rekai Gonzalez-Alberquilla [Wed, 26 Apr 2017 16:44:33 +0000 (17:44 +0100)]
base: Iterable CircularQueue implementation
The former implementation of CircleBuf is functional but a bit too
tailored to match a use-case. This patches introduces a new iterable
circular queue, which adds some more functionality so it can also be
used for the newer LSQ implementation, where iteration and iterators
are a very desirable feature.
Additional contributors: Gabor Dozsa.
Change-Id: I5cfb95c8abc1f5e566a114acdbf23fc52a38ce5e
Signed-off-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/13127
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Giacomo Travaglini [Mon, 3 Dec 2018 11:37:51 +0000 (11:37 +0000)]
ext: Build googlemock with googletest
googlemock needs to be built together with googletest. This patch
is enabling it by doing the following things
* Moving googletest and googlemock under the same top level directory,
so that we have a single SConscript for building them.
This also matches googletest directory structure:
googletest
|_googletest
|_googlemock
* Adding a shared SConscript which is building gmock and gtest as libgtest
* Removing googletest/SConscript
Change-Id: I88accbdd2e80fb47efaa17819233371fbad6acaa
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Ciro Santilli <ciro.santilli@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14696
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Giacomo Travaglini [Wed, 14 Nov 2018 18:41:19 +0000 (18:41 +0000)]
ext: Import googlemock, release version 1.8.0
gtest 1.8.0 is already part of gem5; this patch adds a matching gmock
so that it is possible to create Mocks in gem5 unit tests.
Please note: the commit is just importing the source code as it is
without adding any SConscript; it is hence unbuildable at the moment.
Next commits will integrate the mocking framework into the gem5
build system
Change-Id: Iaf05ad91b1964aac7ea37085f839027a8d34ba3e
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Ciro Santilli <ciro.santilli@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14695
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tony Gutierrez [Fri, 30 Nov 2018 17:19:21 +0000 (12:19 -0500)]
arch-x86: Add sys/syscall.h to x86 process.cc/syscall_emul.cc
Change
a66d12c guards the selection of getdents()
in x86's process.cc file with SYS_getdents, however
process.cc does not include the right header for
SYS_getdents, which leads to x86 choosing the
unimplemented call. This change adds sys/syscall.h to
address the problem.
This change also adds sys/syscall.hh to syscall_emu.cc,
which only includes syscall.hh and may not be supported on
all systems.
Change-Id: If1adcf41e9e455de5f2827ba98c542fdcacdc22e
Reviewed-on: https://gem5-review.googlesource.com/c/14775
Reviewed-by: Ciro Santilli <ciro.santilli@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Daniel R. Carvalho [Wed, 5 Dec 2018 14:06:56 +0000 (15:06 +0100)]
mem-cache: Remove writebacks parameter from serviceMSHRTargets
Change
8ba77ae8fc98a355082da2bd9fdc6ecf4928f725 introduced the
writebacks parameter, but it was never used.
Change-Id: I225e5b399de42d77c72fc0012d3dc93ef39b8853
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/14896
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Daniel R. Carvalho [Wed, 28 Nov 2018 12:54:42 +0000 (13:54 +0100)]
mem-cache: Add getter and setter to CacheBlk::whenReady
Add a getter and a setter function to access CacheBlk::whenReady
to encapsulate the variable and allow error checking. This error
checking consists on verifying that writes to a block after it
has been inserted follow a chronological order.
As a side effect, tickInserted retain its value until updated,
that is, it is not reset in invalidate().
Change-Id: Idc3c5a99c3f002ee9acc2424f00e554877fd3a69
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/14715
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Nikos Nikoleris [Sat, 1 Dec 2018 14:52:23 +0000 (14:52 +0000)]
base: Fix fiber compilation issue for Mac OS
Mac OS has deprecated the use of ucontext and at the moment we are
using a workaround to enable it. A side-effect is that the code is
marked as _POSIX_C_SOURCE and consequently <sys/mman.h> requires the
code to be also marked as _DARWIN_C_SOURCE to include the definition
of MAP_ANONYMOUS.
Change-Id: I65550d11a0a21cd36d832a7de6320e7e3f332a9d
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14817
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Nikos Nikoleris [Wed, 28 Nov 2018 08:16:33 +0000 (08:16 +0000)]
base, sim: Add missing destructors
Derived classes with virtual functions need to define a virtual
destructor or a protected destructor otherwise calling the base class
destructor has undefined behavior. This change adds a virtual
distructor in the base class.
Change-Id: I1c855aa56dff6585ff99b9147bdb4eb9729a0a53
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14815
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Giacomo Gabrielli [Mon, 22 Oct 2018 16:21:45 +0000 (17:21 +0100)]
base: Add type alias for raw pointer in RefCountingPtr
Change-Id: Ied2204566a8fc5c34fb4702301051b8e5ab84ffe
Signed-off-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/13717
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Daniel R. Carvalho [Thu, 25 Oct 2018 15:52:26 +0000 (17:52 +0200)]
mem-cache: Optimize sector valid and secure check
Previously a loop was being done to check whether the
block was valid/secure or not. Variables have been
added to skip this loop and save and update sector
block state when sub-blocks are validated, invalidated
and secured.
Change-Id: Ie1734f7dfda9698c7bf22a1fcbfc47ffb9239cea
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/14363
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Rekai Gonzalez-Alberquilla [Wed, 1 Mar 2017 13:49:08 +0000 (13:49 +0000)]
cpu: Change raw pointers to STL Containers
This patch changes two members from being raw pointers to being STL
containers. The reason behind, other than cleanlyness and arguable OO
best practices is that containers have more intronspections capabilities
than naked pointers do, as the size is known.
Using STL containers adds little overhead and eases the automation of
process during debugging (gdb).
Change-Id: I4d9d3eedafa8b5e50ac512ea93b458a4200229f2
Signed-off-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/13126
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Ciro Santilli [Thu, 15 Nov 2018 00:00:00 +0000 (00:00 +0000)]
arch-arm: correctly set floats from GDB on aarch64
aarch64 floating point registers are now stored as vector type, but this
was not updated in the stub.
Change-Id: I4a2bc1cea0eec9beeb5bbd49e2a868b9d5ed0a42
Reviewed-on: https://gem5-review.googlesource.com/c/14498
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Ciro Santilli [Wed, 14 Nov 2018 00:00:01 +0000 (00:00 +0000)]
base: increase the GDB buffer size dynamically
The size was not large enough for the 'G' packet on aarch64, which the
client sends to set registers.
This would lead to the stub not to be able to find the end of the input
packet and keep waiting forever.
Change-Id: Icb149f15a6c769371ebcb6ec5fbebc6170c31fc6
Reviewed-on: https://gem5-review.googlesource.com/c/14497
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Ciro Santilli [Wed, 14 Nov 2018 00:00:00 +0000 (00:00 +0000)]
arch-arm: only change the pc address when GDB registers are set
The entire pcState was being reset, which made the simulation incorrectly
switch to aarch32 from aarch64.
Change-Id: I9ba7dd0ed95bc6120d94393bba272e0cb8c081c5
Reviewed-on: https://gem5-review.googlesource.com/c/14496
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Ciro Santilli [Wed, 18 Jul 2018 17:00:51 +0000 (18:00 +0100)]
arch-arm: fix the aarch64 GDB stub
The main change is to remove vector registers from the GDB stub.
Those registers were intended for SVE, which is a new architecture feature
and not yet treated by default on the GDB present in Ubuntu 18.04, and
possibly not even on GDB master.
As a result, aarch64 GDB stub connections would fail with:
Remote 'g' packet reply is too long
The correct way to support those registers is to send XML GDB target
description files to the client. This feature is not yet available for
any architecture, and should be implemented in future patches.
Other smaller fixes are:
* cpsr is uint32_t in aarch64 as well as arm
* use M5_ATTR_PACKED on the register structs since they are being cast and
sent as byte arrays
Change-Id: I77cd8a98e322ecc60799e5b11fe5cd414d893cc7
Reviewed-on: https://gem5-review.googlesource.com/c/14495
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Gabe Black [Fri, 30 Nov 2018 01:33:46 +0000 (17:33 -0800)]
systemc: Disable systemc when using gcc versions older than 5.0.
These versions don't support the std::put_time function. Since versions
of gcc older than 5.0 aren't going to be supported at all in the fairly
near future, this should only be temporary. The number of people using
both systemc and older versions of gcc should be very small, or even
zero.
Change-Id: Ie9572fdf83ba9569df6bc0457c98d86565dcdcd8
Reviewed-on: https://gem5-review.googlesource.com/c/14755
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 29 Nov 2018 01:40:17 +0000 (17:40 -0800)]
base: Change the unit test binary names to use .test, and to be consistent.
Most tests were named *test where * was the base name of the file being
tested, but some were named differently based on, for instance, the
name of the class that file implemented.
This change makes all the test names consistently based off of the file
name they test, and also brings in the new .test convention to make
them easier to read.
Now, if you have a file like fiber.cc you want to test, you'd have a
unit test in a file called fiber.test.cc, and a test called fiber.test
which would generate a binary called fiber.test.opt, fiber.test.debug,
etc.
Change-Id: I61d59016090371a9bae72066e7473a34aecea21f
Reviewed-on: https://gem5-review.googlesource.com/c/14677
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 29 Nov 2018 01:36:28 +0000 (17:36 -0800)]
base: Rename unit test cc files to be *.test.cc.
This makes the name easier to read, looks ok if the file is named with
underscores between words or not, is easy to grep for, and shouldn't
introduce any ambiguities in the file names.
Change-Id: I34b7bcccea2d87c10c0de417dd5e3ef27c4b5666
Reviewed-on: https://gem5-review.googlesource.com/c/14676
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Tue, 27 Nov 2018 03:18:26 +0000 (19:18 -0800)]
util: Add the scons configuration cache to .gitignore for util/tlm.
Change-Id: Ife31e1bbf862d10bbe8e2c0fa36c8c168cfafa84
Reviewed-on: https://gem5-review.googlesource.com/c/14656
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 22 Nov 2018 01:59:16 +0000 (17:59 -0800)]
systemc: Update the gem5-within-systemc README to mention USE_SYSTEMC.
When linking with an external systemc host, the native gem5 systemc API
should be disabled to avoid linking conflicts.
Change-Id: If7f9b3718fcdbdab5ebc9ef52e746f6bf9f2fb9c
Reviewed-on: https://gem5-review.googlesource.com/c/14520
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 29 Nov 2018 01:34:33 +0000 (17:34 -0800)]
base: Fix include order in the inifile unit test.
Even though gtest.h is a C++ header, it looks like a C header which
makes the style check hook upset. Lets move it up so the hook doesn't
complain when the file is changed.
Change-Id: Ibcc2d0b7bf3b254c70e55b30379ebd4b70933c26
Reviewed-on: https://gem5-review.googlesource.com/c/14675
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Gabe Black [Thu, 22 Nov 2018 01:51:46 +0000 (17:51 -0800)]
systemc: Run the systemc tests directly from their build directories.
We were previously running them from the current directory to start
with, and then having the config script switch to the build directory.
That worked, except when output streams might be opened as part of the
global constructors which would run before the config script.
This change makes us start from the build directory directly, making
the switch in the config script unnecessary and ensuring that no files
leak outside of the build when running tests.
Change-Id: I484168793bfc5abc4e5631fb3468733fb9d829af
Reviewed-on: https://gem5-review.googlesource.com/c/14519
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 22 Nov 2018 01:35:28 +0000 (17:35 -0800)]
systemc: Run the systemc tests with the CWD in the build directory.
This will prevent some (but not all) output files the tests generate
from ending up outside the build directory. Because some output file
streams are constructed as global objects, their paths are resolved
relative to the CWD when gem5 starts, before the config script has a
chance to change it.
Subsequent changes will make verify.py should make gem5 start with the
correct working directory, cleaning up the remaining leaking files.
Change-Id: I75a1256719dab4c98ab868c209d09b9dcdabb458
Reviewed-on: https://gem5-review.googlesource.com/c/14518
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 22 Nov 2018 01:34:36 +0000 (17:34 -0800)]
systemc: Add DEPS files for some tests with non-source file dependencies.
This ensures that those files will be available when running the test
relative to its build directory.
Change-Id: If775ca328b3e1165baa968e4b39c36db0172837c
Reviewed-on: https://gem5-review.googlesource.com/c/14517
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 22 Nov 2018 00:59:32 +0000 (16:59 -0800)]
systemc: Make verify.py recognize a DEPS file in test dirs.
This file lists additional files beyond the sources that the test
relies on, like files it uses when running.
Change-Id: Ifc4958b26eed08689e0e72bd87f84388dbcf1898
Reviewed-on: https://gem5-review.googlesource.com/c/14516
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Nikos Nikoleris [Wed, 28 Nov 2018 08:00:57 +0000 (08:00 +0000)]
base: Add missing overrides in statistics header
Change-Id: Id5ee2a970a3dceee1b7e24ce3b452b7fece87875
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14619
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Nikos Nikoleris [Wed, 28 Nov 2018 07:58:32 +0000 (07:58 +0000)]
arch-arm: Add missing template declaration
The lack of a template declaration for IllegalInstSetStateFault was
causing errors when compiling with clang.
Change-Id: If7f19d7e879330226c80df2baca73d88d818f673
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14618
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Pau Cabre [Thu, 22 Nov 2018 13:48:30 +0000 (14:48 +0100)]
cpu: Added new stats to TAGE and LTAGE branch predictors
They are basically used to tell wich component of the predictor is
providing the prediction and whether it is correct or wrong
Change-Id: I7b3db66535f159091f1b37d70c2d942d50b20fb2
Signed-off-by: Pau Cabre <pau.cabre@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14535
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Pau Cabre [Tue, 20 Nov 2018 00:04:56 +0000 (01:04 +0100)]
cpu: split LTAGE implementation into a base TAGE and a derived LTAGE
The new derived LTAGE is equivalent to the original LTAGE implementation
The default values of the TAGE branch predictor match the settings of the
8C-TAGE configuration described in https://www.jilp.org/vol8/v8paper1.pdf
Change-Id: I8323adbfd5c9a45db23cfff234218280e639f9ed
Signed-off-by: Pau Cabre <pau.cabre@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14435
Reviewed-by: Sudhanshu Jha <sudhanshu.jha@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Rekai Gonzalez-Alberquilla [Fri, 10 Feb 2017 17:30:22 +0000 (17:30 +0000)]
cpu,arch-arm: Initialise data members
The value that is not initialized has a bogus value that manifests when
using some debug-flags what makes the usage of tracediff a bit more
challenging.
In addition, while debugging with other techniques, it introduces the
problem of understanding if the value of a field is 'intended' or just
an effect of the lack of initialisation.
Change-Id: Ied88caa77479c6f1d5166d80d1a1a057503cb106
Signed-off-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/13125
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Matteo Andreozzi [Mon, 26 Feb 2018 16:40:12 +0000 (10:40 -0600)]
arch-arm: clang compilation fixes
Fix 1: std::pair constructor is not a constexpr in clang implementation
Fix 2: static const templates need to be defined in their
translation unit
Change-Id: I3d9b9b47e1d148e44555f40e2e2aeff06707ff8f
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14617
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Giacomo Travaglini [Thu, 22 Nov 2018 15:09:04 +0000 (15:09 +0000)]
tests: Convert IniFile unit test to a GTest
Change-Id: I47d6c9cbae21877420a15ffcf8489e3c26959139
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14615
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Tue, 27 Nov 2018 03:12:52 +0000 (19:12 -0800)]
hsail: Fix a warning/build failure for HSAIL_X86.
The Bitselect operation definition used ~ to invert the bits of a mask
value, but if that mask value is of type bool, that generates a
warning. This change casts that value to a uint64_t so that it can
always have ~ applied to it.
Change-Id: I7fbfc6ff264bc32a265f2724c772b8fae08590f7
Reviewed-on: https://gem5-review.googlesource.com/c/14655
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Tue, 27 Nov 2018 01:51:16 +0000 (17:51 -0800)]
arch, base, cpu, gpu, mem: Replace assert(0 or false with panic.
Neither assert(0) nor assert(false) give any hint as to why control
getting to them is bad, and their more descriptive versions,
assert(0 && "description") and assert(false && "description"), jury
rig assert to add an error message when the utility function panic()
already does that directly with better formatting options.
This change replaces that flavor of call to assert with panic, except
in the actual code which processes the formatting that panic uses (to
avoid infinitely recurring error handling), and in some *.sm files
since I don't know what rules those have to follow and don't want to
accidentaly break them.
Change-Id: I8addfbfaf77eaed94ec8191f2ae4efb477cefdd0
Reviewed-on: https://gem5-review.googlesource.com/c/14636
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Ciro Santilli [Tue, 20 Nov 2018 16:45:07 +0000 (16:45 +0000)]
sim-se: only implement getdentsFunc on supported hosts
The implementation of the getdents syscall relies on SYS_getdents, which
is not available on all archs, because the getdents syscall has been
superseded by getdents64, and does not exist on newer archs such as
aarch64.
This leads the build to break on aarch64 hosts with error:
error: 'SYS_getdents' was not declared in this scope
Change-Id: I8701fb5b61c0418b14a9463ef135a391a7f7a9ba
Reviewed-on: https://gem5-review.googlesource.com/c/14596
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Ciro Santilli [Wed, 21 Nov 2018 16:27:28 +0000 (16:27 +0000)]
systemc: set endianess to fix build for ARM host
ARM architectures were not covered in the endianess #if cases, which
lead the build to fail on an arm host with message:
error The file boost/detail/endian.hpp needs to be set up for your CPU
type.
Change-Id: Id012cf37810da113174a51746e290e25138739cb
Reviewed-on: https://gem5-review.googlesource.com/c/14595
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Tue, 20 Nov 2018 00:06:03 +0000 (16:06 -0800)]
base: Add some functions to convert floats to bits and vice versa.
These make it easier to extract the binary representation of floats and
doubles, and given a binary representation convert it back again.
The versions with a size prefix are safer to use since they make it
clear what size inputs/outputs are expected. The versions without are
to make writing generic code easier in case the same code snippet,
templated function, etc., needs to be applied in both circumstances.
Change-Id: Ib1f35a7e88e00806a7c639c211c5699b4af5a472
Reviewed-on: https://gem5-review.googlesource.com/c/14455
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
Daniel R. Carvalho [Thu, 25 Oct 2018 15:26:02 +0000 (17:26 +0200)]
mem-cache: Add setters to validate and secure block
In order to allow polymorphism of the block these two
functions have been added, and all direct status
assignments to these bits have been substituted.
We also assert that the block has been invalidated
before insertion. Then the block is validated in
the insertion.
Change-Id: Ie7be42408721ad4c2c9dc880f82a62cb594f8668
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/14362
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Pau Cabre [Sun, 18 Nov 2018 01:40:13 +0000 (02:40 +0100)]
cpu: Made LTAGE parameters configurable
This includes TAGE tag sizes, TAGE table sizes, U counters reset period,
loop predictor associativity, path history size, the USE_ALT_ON_NA size
and the WITHLOOP size
Change-Id: I935823f0a5794f5d55b744263798897a813dc1bd
Signed-off-by: Pau Cabre <pau.cabre@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14417
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Pau Cabre [Sat, 17 Nov 2018 22:21:15 +0000 (23:21 +0100)]
cpu: Fixed useful counter handling in LTAGE
Increased to 2 bits of useful counter per TAGE entry as described in the
LTAGE paper (and made the size configurable)
Changed how the useful counters are incremented/decremented as described
in the LTAGE paper
Change-Id: I8c692cc7c180d29897cb77781681ff498a1d16c8
Signed-off-by: Pau Cabre <pau.cabre@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14215
Reviewed-by: Ilias Vougioukas <ilias.vougioukas@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Pau Cabre [Sun, 11 Nov 2018 22:43:33 +0000 (23:43 +0100)]
cpu: Fixes on the loop predictor part of LTAGE
Fixed the following fields of the loop predictor entries as described on
the LTAGE paper:
- Age counter (it was 3 bits and it should be 8 bits)
- Tag (it was 16 bits and it should be 14 bits). Also some times it used
int variables and some times uint16_t, leading to wrong behaviour
- Confidence counter (it was 2 bits ins some parts of the code and 3 bits
in some other parts. It should be 2 bits)
- Iteration counters (they were 16 bits and they should be 14 bits)
All the new sizes are now configurable
Change-Id: I8884c7454c1e510b65160eb4d5749d3259d34096
Signed-off-by: Pau Cabre <pau.cabre@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14216
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Gabe Black [Wed, 21 Nov 2018 00:22:26 +0000 (16:22 -0800)]
x86: Get rid of a problematic DPRINTF in PremFp.
This DPRINTF shouldn't be necessary since it shows the operands and
results of the instruction which the trace should already make
available. Also by passing the destination register to DPRINTF, the ISA
parser will assume that it's also a source when tracking dependencies.
Change-Id: I820387c82578bdbb8d2e3d91652a6c0185077f54
Reviewed-on: https://gem5-review.googlesource.com/c/14475
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Sat, 17 Nov 2018 00:27:58 +0000 (16:27 -0800)]
sim: Deschedule existing events when destructing an event queue.
Other objects in the simulation may try to deschedule their events when
destructed, and if they're cleaned up after the event queue is then
they might try to deschedule events on an event queue that no longer
exists.
Change-Id: I9452ce52fba78297ce3dc4b3884289b5e2f2574d
Reviewed-on: https://gem5-review.googlesource.com/c/14400
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Sat, 17 Nov 2018 01:57:41 +0000 (17:57 -0800)]
base: Don't let exceptions leak from the to_number utility function.
This function catches a couple types of exceptions the functions it
calls might throw, but if one that it doesn't catch is thrown, then
it will propogate that exception to its own callers, and not initialize
the value it was asked to convert.
This might be considered desirable behavior since it lets errors
propogate and avoids handling them in code that might not know the
context of when it's called. On the other hand, it upsets g++ since it
thinks that there might be an uninitialized value used elsewhere, even
though that value will only be uninitialized if an exception is
propogating, and the code that would use it is after a point where that
exception would have been caught and execution would have resumed.
To satisfy g++ and to also avoid silently hiding errors, this change
adds a catch all which will panic if an unexpected exception is raised.
Change-Id: Ie94dcef3a50f7902566328a3fa2eac59b3cf9aad
Reviewed-on: https://gem5-review.googlesource.com/c/14399
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Gabe Black [Fri, 9 Nov 2018 00:16:10 +0000 (16:16 -0800)]
systemc: Stop explicitly adding the systemc ext dir to CPPPATH.
That's now handled automatically when the native systemc API is
enabled.
Change-Id: If1f88929af335a40554a9fd8df6f68aa1a4c0ba4
Reviewed-on: https://gem5-review.googlesource.com/c/14398
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Thu, 8 Nov 2018 23:49:03 +0000 (15:49 -0800)]
systemc: Put systemc headers in the include path when supported.
When the native systemc API support is built in, put the systemc and
systemc.h header files in the include path so they can be used as
normal. We don't want any external systemc headers being included and
getting mixed in with our local ones.
Change-Id: I5fc01ff5f069cfadb7c19a9dead13e7ce7272976
Reviewed-on: https://gem5-review.googlesource.com/c/14397
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
Gabe Black [Sat, 17 Nov 2018 02:01:30 +0000 (18:01 -0800)]
systemc: Increase the stack size for the sc_main fiber to 8MB.
This is a reasonable size for a stack, and the default size for a stack
on Linux as determined by some quick Googling. The sc_main fiber would
normally use the primary program stack if run under the standard
systemc implementation, and so might expect to have more room to play
with.
Change-Id: Ie12344939e7b249da203630ebc7dc773a387d716
Reviewed-on: https://gem5-review.googlesource.com/c/14396
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>