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d="scan'208";a="69883239" Received: from ltuz-desk.ger.corp.intel.com (HELO localhost) ([10.245.246.40]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2024 05:23:06 -0700 Date: Wed, 4 Sep 2024 14:23:03 +0200 From: Zbigniew =?utf-8?Q?Kempczy=C5=84ski?= To: Christoph Manszewski Cc: igt-dev@lists.freedesktop.org, Kamil Konieczny , Dominik Grzegorzek , Maciej Patelczyk , Dominik Karol =?utf-8?Q?Pi=C4=85tkowski?= , Pawel Sikora , Andrzej Hajda , Kolanupaka Naveena , Mika Kuoppala , Gwan-gyeong Mun Subject: Re: [PATCH i-g-t v5 04/17] lib/gpgpu_shader: Add write_on_exception template Message-ID: <20240904122303.l7t4jcpp2htyte3m@zkempczy-mobl2> References: <20240829144547.105371-1-christoph.manszewski@intel.com> <20240829144547.105371-5-christoph.manszewski@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240829144547.105371-5-christoph.manszewski@intel.com> X-BeenThere: igt-dev@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development mailing list for IGT GPU Tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" On Thu, Aug 29, 2024 at 04:45:34PM +0200, Christoph Manszewski wrote: > From: Andrzej Hajda > > Writing specific value to memory location on unexpected value in exception > register allows to report errors from inside shader or siplet. > > Signed-off-by: Andrzej Hajda > --- > lib/gpgpu_shader.c | 56 ++++++++++++++++++++ > lib/gpgpu_shader.h | 2 + > lib/iga64_generated_codes.c | 102 +++++++++++++++++++++++++++++++++++- > 3 files changed, 159 insertions(+), 1 deletion(-) > > diff --git a/lib/gpgpu_shader.c b/lib/gpgpu_shader.c > index c723577e6..4097857f2 100644 > --- a/lib/gpgpu_shader.c > +++ b/lib/gpgpu_shader.c > @@ -634,6 +634,62 @@ void gpgpu_shader__write_dword(struct gpgpu_shader *shdr, uint32_t value, > ", 2, y_offset, 3, value, value, value, value); > } > > +/** > + * gpgpu_shader__write_on_exception: > + * @shdr: shader to be modified > + * @value: dword to be written > + * @y_offset: write target offset within the surface in rows > + * @mask: mask to be applied on exception register > + * @expected: expected value of exception register with @mask applied > + * > + * Check if bits specified by @mask in exception register(cr0.1) are equal > + * to provided ones: cr0.1 & @mask == @expected, > + * if yes fill dword in (row, column/dword) == (tg_id_y + @y_offset, tg_id_x). > + */ > +void gpgpu_shader__write_on_exception(struct gpgpu_shader *shdr, uint32_t value, > + uint32_t y_offset, uint32_t mask, uint32_t expected) > +{ > + emit_iga64_code(shdr, write_on_exception, " \n\ > + // Clear message header \n\ > +(W) mov (16|M0) r4.0<1>:ud 0x0:ud \n\ > + // Payload \n\ > +(W) mov (1|M0) r5.0<1>:ud ARG(3):ud \n\ > +(W) mov (1|M0) r5.1<1>:ud ARG(4):ud \n\ > +(W) mov (1|M0) r5.2<1>:ud ARG(5):ud \n\ > +(W) mov (1|M0) r5.3<1>:ud ARG(6):ud \n\ ARG(4)-ARG(6) are unused and confusing here. Please get rid of them. > +#if GEN_VER < 2000 // prepare Media Block Write \n\ > + // X offset of the block in bytes := (thread group id X << ARG(0)) \n\ > +(W) shl (1|M0) r4.0<1>:ud r0.1<0;1,0>:ud ARG(0):ud \n\ > + // Y offset of the block in rows := thread group id Y \n\ > +(W) mov (1|M0) r4.1<1>:ud r0.6<0;1,0>:ud \n\ > +(W) add (1|M0) r4.1<1>:ud r4.1<0;1,0>:ud ARG(1):ud \n\ > + // block width [0,63] representing 1 to 64 bytes \n\ > +(W) mov (1|M0) r4.2<1>:ud ARG(2):ud \n\ > + // FFTID := FFTID from R0 header \n\ > +(W) mov (1|M0) r4.4<1>:ud r0.5<0;1,0>:ud \n\ > +#else // prepare Typed 2D Block Store \n\ > + // Load r2.0-3 with tg id X << ARG(0) \n\ > +(W) shl (1|M0) r2.0<1>:ud r0.1<0;1,0>:ud ARG(0):ud \n\ > + // Load r2.4-7 with tg id Y + ARG(1):ud \n\ > +(W) mov (1|M0) r2.1<1>:ud r0.6<0;1,0>:ud \n\ > +(W) add (1|M0) r2.1<1>:ud r2.1<0;1,0>:ud ARG(1):ud \n\ > + // Store X and Y block start (160:191 and 192:223) \n\ > +(W) mov (2|M0) r4.5<1>:ud r2.0<2;2,1>:ud \n\ > + // Store X and Y block max_size (224:231 and 232:239) \n\ > +(W) mov (1|M0) r4.7<1>:ud ARG(2):ud \n\ > +#endif \n\ > + // Check if masked exception is equal to provided value and write conditionally \n\ > +(W) and (1|M0) r3.0<1>:ud cr0.1<0;1,0>:ud ARG(7):ud \n\ > +(W) mov (1|M0) f0.0<1>:ud 0x0:ud \n\ > +(W) cmp (1|M0) (eq)f0.0 null:ud r3.0<0;1,0>:ud ARG(8):ud \n\ > +#if GEN_VER < 2000 // Media Block Write \n\ > +(W&f0.0) send.dc1 (16|M0) null r4 src1_null 0 0x40A8000 \n\ > +#else // Typed 2D Block Store \n\ > +(W&f0.0) send.tgm (16|M0) null r4 null:0 0 0x64000007 \n\ > +#endif \n\ > + ", 2, y_offset, 3, value, value, value, value, mask, expected); I thought first and third argument might be directly entered in the code but after replace there's harder to find where they are used. I mean I looked for ARG(0) to find the place where 2 lands. So I suggest just to remove 'value' duplicates for ARG(4)-ARG(6) only. -- Zbigniew > +} > + > /** > * gpgpu_shader__end_system_routine: > * @shdr: shader to be modified > diff --git a/lib/gpgpu_shader.h b/lib/gpgpu_shader.h > index e4ca0be4c..76ff4989e 100644 > --- a/lib/gpgpu_shader.h > +++ b/lib/gpgpu_shader.h > @@ -74,6 +74,8 @@ void gpgpu_shader__end_system_routine_step_if_eq(struct gpgpu_shader *shdr, > void gpgpu_shader__write_aip(struct gpgpu_shader *shdr, uint32_t y_offset); > void gpgpu_shader__write_dword(struct gpgpu_shader *shdr, uint32_t value, > uint32_t y_offset); > +void gpgpu_shader__write_on_exception(struct gpgpu_shader *shdr, uint32_t dw, > + uint32_t y_offset, uint32_t mask, uint32_t value); > void gpgpu_shader__label(struct gpgpu_shader *shdr, int label_id); > void gpgpu_shader__jump(struct gpgpu_shader *shdr, int label_id); > void gpgpu_shader__jump_neq(struct gpgpu_shader *shdr, int label_id, > diff --git a/lib/iga64_generated_codes.c b/lib/iga64_generated_codes.c > index dd849eebc..c084ddcd7 100644 > --- a/lib/iga64_generated_codes.c > +++ b/lib/iga64_generated_codes.c > @@ -3,7 +3,7 @@ > > #include "gpgpu_shader.h" > > -#define MD5_SUM_IGA64_ASMS 33b7cd843e3b009c123a85a6c520d7d0 > +#define MD5_SUM_IGA64_ASMS 85cd452f0cdcf3fe54bb0b2a7424e12a > > struct iga64_template const iga64_code_gpgpu_fill[] = { > { .gen_ver = 2000, .size = 44, .code = (const uint32_t []) { > @@ -192,6 +192,106 @@ struct iga64_template const iga64_code_breakpoint_suppress[] = { > }} > }; > > +struct iga64_template const iga64_code_write_on_exception[] = { > + { .gen_ver = 2000, .size = 68, .code = (const uint32_t []) { > + 0x80100061, 0x04054220, 0x00000000, 0x00000000, > + 0x80000061, 0x05054220, 0x00000000, 0xc0ded003, > + 0x80000061, 0x05154220, 0x00000000, 0xc0ded004, > + 0x80000061, 0x05254220, 0x00000000, 0xc0ded005, > + 0x80000061, 0x05354220, 0x00000000, 0xc0ded006, > + 0x80000069, 0x02058220, 0x02000014, 0xc0ded000, > + 0x80000061, 0x02150220, 0x00000064, 0x00000000, > + 0x80001940, 0x02158220, 0x02000214, 0xc0ded001, > + 0x80041961, 0x04550220, 0x00220205, 0x00000000, > + 0x80000061, 0x04754220, 0x00000000, 0xc0ded002, > + 0x80000965, 0x03058220, 0x02008010, 0xc0ded007, > + 0x80000961, 0x30014220, 0x00000000, 0x00000000, > + 0x80001a70, 0x00018220, 0x12000304, 0xc0ded008, > + 0x84134031, 0x00000000, 0xd00e0494, 0x04000000, > + 0x80000001, 0x00010000, 0x20000000, 0x00000000, > + 0x80000001, 0x00010000, 0x30000000, 0x00000000, > + 0x80000901, 0x00010000, 0x00000000, 0x00000000, > + }}, > + { .gen_ver = 1270, .size = 72, .code = (const uint32_t []) { > + 0x80040061, 0x04054220, 0x00000000, 0x00000000, > + 0x80000061, 0x05054220, 0x00000000, 0xc0ded003, > + 0x80000061, 0x05254220, 0x00000000, 0xc0ded004, > + 0x80000061, 0x05454220, 0x00000000, 0xc0ded005, > + 0x80000061, 0x05654220, 0x00000000, 0xc0ded006, > + 0x80000069, 0x04058220, 0x02000024, 0xc0ded000, > + 0x80000061, 0x04250220, 0x000000c4, 0x00000000, > + 0x80001940, 0x04258220, 0x02000424, 0xc0ded001, > + 0x80000061, 0x04454220, 0x00000000, 0xc0ded002, > + 0x80000061, 0x04850220, 0x000000a4, 0x00000000, > + 0x80000965, 0x03058220, 0x02008020, 0xc0ded007, > + 0x80000961, 0x30014220, 0x00000000, 0x00000000, > + 0x80001a70, 0x00018220, 0x12000304, 0xc0ded008, > + 0x80001a01, 0x00010000, 0x00000000, 0x00000000, > + 0x81044031, 0x00000000, 0xc0000414, 0x02a00000, > + 0x80000001, 0x00010000, 0x20000000, 0x00000000, > + 0x80000001, 0x00010000, 0x30000000, 0x00000000, > + 0x80000901, 0x00010000, 0x00000000, 0x00000000, > + }}, > + { .gen_ver = 1260, .size = 68, .code = (const uint32_t []) { > + 0x80100061, 0x04054220, 0x00000000, 0x00000000, > + 0x80000061, 0x05054220, 0x00000000, 0xc0ded003, > + 0x80000061, 0x05154220, 0x00000000, 0xc0ded004, > + 0x80000061, 0x05254220, 0x00000000, 0xc0ded005, > + 0x80000061, 0x05354220, 0x00000000, 0xc0ded006, > + 0x80000069, 0x04058220, 0x02000014, 0xc0ded000, > + 0x80000061, 0x04150220, 0x00000064, 0x00000000, > + 0x80001940, 0x04158220, 0x02000414, 0xc0ded001, > + 0x80000061, 0x04254220, 0x00000000, 0xc0ded002, > + 0x80000061, 0x04450220, 0x00000054, 0x00000000, > + 0x80000965, 0x03058220, 0x02008010, 0xc0ded007, > + 0x80000961, 0x30014220, 0x00000000, 0x00000000, > + 0x80001a70, 0x00018220, 0x12000304, 0xc0ded008, > + 0x84134031, 0x00000000, 0xc0000414, 0x02a00000, > + 0x80000001, 0x00010000, 0x20000000, 0x00000000, > + 0x80000001, 0x00010000, 0x30000000, 0x00000000, > + 0x80000901, 0x00010000, 0x00000000, 0x00000000, > + }}, > + { .gen_ver = 1250, .size = 72, .code = (const uint32_t []) { > + 0x80040061, 0x04054220, 0x00000000, 0x00000000, > + 0x80000061, 0x05054220, 0x00000000, 0xc0ded003, > + 0x80000061, 0x05254220, 0x00000000, 0xc0ded004, > + 0x80000061, 0x05454220, 0x00000000, 0xc0ded005, > + 0x80000061, 0x05654220, 0x00000000, 0xc0ded006, > + 0x80000069, 0x04058220, 0x02000024, 0xc0ded000, > + 0x80000061, 0x04250220, 0x000000c4, 0x00000000, > + 0x80001940, 0x04258220, 0x02000424, 0xc0ded001, > + 0x80000061, 0x04454220, 0x00000000, 0xc0ded002, > + 0x80000061, 0x04850220, 0x000000a4, 0x00000000, > + 0x80000965, 0x03058220, 0x02008020, 0xc0ded007, > + 0x80000961, 0x30014220, 0x00000000, 0x00000000, > + 0x80001a70, 0x00018220, 0x12000304, 0xc0ded008, > + 0x80001a01, 0x00010000, 0x00000000, 0x00000000, > + 0x81044031, 0x00000000, 0xc0000414, 0x02a00000, > + 0x80000001, 0x00010000, 0x20000000, 0x00000000, > + 0x80000001, 0x00010000, 0x30000000, 0x00000000, > + 0x80000901, 0x00010000, 0x00000000, 0x00000000, > + }}, > + { .gen_ver = 0, .size = 68, .code = (const uint32_t []) { > + 0x80040061, 0x04054220, 0x00000000, 0x00000000, > + 0x80000061, 0x05054220, 0x00000000, 0xc0ded003, > + 0x80000061, 0x05254220, 0x00000000, 0xc0ded004, > + 0x80000061, 0x05454220, 0x00000000, 0xc0ded005, > + 0x80000061, 0x05654220, 0x00000000, 0xc0ded006, > + 0x80000069, 0x04058220, 0x02000024, 0xc0ded000, > + 0x80000061, 0x04250220, 0x000000c4, 0x00000000, > + 0x80000140, 0x04258220, 0x02000424, 0xc0ded001, > + 0x80000061, 0x04454220, 0x00000000, 0xc0ded002, > + 0x80000061, 0x04850220, 0x000000a4, 0x00000000, > + 0x80000165, 0x03058220, 0x02008020, 0xc0ded007, > + 0x80000161, 0x30014220, 0x00000000, 0x00000000, > + 0x80000270, 0x00018220, 0x12000304, 0xc0ded008, > + 0x8104a031, 0x00000000, 0xc0000414, 0x02a00000, > + 0x80000001, 0x00010000, 0x20000000, 0x00000000, > + 0x80000001, 0x00010000, 0x30000000, 0x00000000, > + 0x80000101, 0x00010000, 0x00000000, 0x00000000, > + }} > +}; > + > struct iga64_template const iga64_code_media_block_write[] = { > { .gen_ver = 2000, .size = 56, .code = (const uint32_t []) { > 0x80100061, 0x04054220, 0x00000000, 0x00000000, > -- > 2.34.1 >