[PATCH i-g-t 1/2] lib/gpgpu_shader: Add x_offset parameter for gpgpu_shader__write_on_exception
Manszewski, Christoph
christoph.manszewski at intel.com
Fri Oct 4 12:24:48 UTC 2024
Hi Zbigniew,
On 1.10.2024 17:07, Zbigniew Kempczyński wrote:
> On Wed, Sep 25, 2024 at 03:30:02PM +0200, Christoph Manszewski wrote:
>> Currently gpgpu_shader__write_on_exception always writes the first
>> column equal to thread group ID x. Make it possible to specify an offset
>> from that value.
>>
>> Signed-off-by: Christoph Manszewski <christoph.manszewski at intel.com>
>> Cc: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
>> ---
>> lib/gpgpu_shader.c | 29 +++++++-------
>> lib/gpgpu_shader.h | 4 +-
>> lib/iga64_generated_codes.c | 77 ++++++++++++++++++++-----------------
>> tests/intel/xe_exec_sip.c | 6 +--
>> 4 files changed, 62 insertions(+), 54 deletions(-)
>>
>> diff --git a/lib/gpgpu_shader.c b/lib/gpgpu_shader.c
>> index 6d8c7ebb8..8df8d9612 100644
>> --- a/lib/gpgpu_shader.c
>> +++ b/lib/gpgpu_shader.c
>> @@ -670,6 +670,7 @@ void gpgpu_shader__set_exception(struct gpgpu_shader *shdr, uint32_t value)
>> * gpgpu_shader__write_on_exception:
>> * @shdr: shader to be modified
>> * @value: dword to be written
>> + * @x_offset: write target offset within the surface in columns added to the 'thread group id x'
>> * @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
>> @@ -678,45 +679,47 @@ void gpgpu_shader__set_exception(struct gpgpu_shader *shdr, uint32_t value)
>> * to provided ones: cr0.1 & @mask == @expected,
>> * if yes fill dword in (row, column/dword) == (tg_id_y + @y_offset, tg_id_x).
>
> tg_id_x + @x_offset
Sure, nice catch!
>
>> */
>> -void gpgpu_shader__write_on_exception(struct gpgpu_shader *shdr, uint32_t value,
>> +void gpgpu_shader__write_on_exception(struct gpgpu_shader *shdr, uint32_t value, uint32_t x_offset,
>> 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) r5.0<1>:ud ARG(4):ud \n\
>> #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\
>> +(W) add (1|M0) r4.0<1>:ud r0.1<0;1,0>:ud ARG(1):ud \n\
>> +(W) shl (1|M0) r4.0<1>:ud r4.0<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\
>> +(W) add (1|M0) r4.1<1>:ud r4.1<0;1,0>:ud ARG(2):ud \n\
>
> You may drop mov and below should be enough:
>
> add (1|M0) r4.1<1>:ud r0.6<0;1,0>:ud ARG(2):ud
Ok, makes sense.
>
>> // block width [0,63] representing 1 to 64 bytes \n\
>> -(W) mov (1|M0) r4.2<1>:ud ARG(2):ud \n\
>> +(W) mov (1|M0) r4.2<1>:ud ARG(3):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\
>> + // Load r2.0 with tg id (X + ARG(1)) << ARG(0) \n\
>> +(W) add (1|M0) r2.0<1>:ud r0.1<0;1,0>:ud ARG(1):ud \n\
>> +(W) shl (1|M0) r2.0<1>:ud r2.0<0;1,0>:ud ARG(0):ud \n\
>> + // Load r2.4-7 with tg id Y + ARG(2):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\
>> +(W) add (1|M0) r2.1<1>:ud r2.1<0;1,0>:ud ARG(2):ud \n\
>
> Same here.
Ok
>
>> // 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\
>> +(W) mov (1|M0) r4.7<1>:ud ARG(3):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(4):ud \n\
>> +(W) and (1|M0) r3.0<1>:ud cr0.1<0;1,0>:ud ARG(5):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(5):ud \n\
>> +(W) cmp (1|M0) (eq)f0.0 null:ud r3.0<0;1,0>:ud ARG(6):ud \n\
>
> Adding argument in the middle of the list makes a lot of noise in ARG(x)
> changing. What a pity we don't have possibility of making definitions
> like:
>
> #define x_offset ARG(1)
> #define y_offset ARG(2)
>
> in the code. Changing definitions would keep code clear.
>
> But that was my lousy thought, patch looks correct to me.
> Feel free to incorporate my suggestions or not:
>
> Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
Thanks,
Christoph
>
> --
> Zbigniew
>
>> #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, mask, expected);
>> + ", 2, x_offset, y_offset, 3, value, mask, expected);
>> }
>>
>> /**
>> diff --git a/lib/gpgpu_shader.h b/lib/gpgpu_shader.h
>> index 53fe2869e..5f6260fb3 100644
>> --- a/lib/gpgpu_shader.h
>> +++ b/lib/gpgpu_shader.h
>> @@ -82,8 +82,8 @@ 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__write_on_exception(struct gpgpu_shader *shdr, uint32_t dw, uint32_t x_offset,
>> + 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 fe6d68b70..91adc7313 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 aa5c79b36f48404f1da21d2316e9f9f3
>> +#define MD5_SUM_IGA64_ASMS a1dfb701367264e53d0d33f53d8769e3
>>
>> struct iga64_template const iga64_code_gpgpu_fill[] = {
>> { .gen_ver = 2000, .size = 44, .code = (const uint32_t []) {
>> @@ -193,83 +193,88 @@ struct iga64_template const iga64_code_breakpoint_suppress[] = {
>> };
>>
>> struct iga64_template const iga64_code_write_on_exception[] = {
>> - { .gen_ver = 2000, .size = 56, .code = (const uint32_t []) {
>> + { .gen_ver = 2000, .size = 60, .code = (const uint32_t []) {
>> 0x80100061, 0x04054220, 0x00000000, 0x00000000,
>> - 0x80000061, 0x05054220, 0x00000000, 0xc0ded003,
>> - 0x80000069, 0x02058220, 0x02000014, 0xc0ded000,
>> + 0x80000061, 0x05054220, 0x00000000, 0xc0ded004,
>> + 0x80000040, 0x02058220, 0x02000014, 0xc0ded001,
>> + 0x80001969, 0x02058220, 0x02000204, 0xc0ded000,
>> 0x80000061, 0x02150220, 0x00000064, 0x00000000,
>> - 0x80001940, 0x02158220, 0x02000214, 0xc0ded001,
>> + 0x80001940, 0x02158220, 0x02000214, 0xc0ded002,
>> 0x80041961, 0x04550220, 0x00220205, 0x00000000,
>> - 0x80000061, 0x04754220, 0x00000000, 0xc0ded002,
>> - 0x80000965, 0x03058220, 0x02008010, 0xc0ded004,
>> + 0x80000061, 0x04754220, 0x00000000, 0xc0ded003,
>> + 0x80000965, 0x03058220, 0x02008010, 0xc0ded005,
>> 0x80000961, 0x30014220, 0x00000000, 0x00000000,
>> - 0x80001a70, 0x00018220, 0x12000304, 0xc0ded005,
>> + 0x80001a70, 0x00018220, 0x12000304, 0xc0ded006,
>> 0x84134031, 0x00000000, 0xd00e0494, 0x04000000,
>> 0x80000001, 0x00010000, 0x20000000, 0x00000000,
>> 0x80000001, 0x00010000, 0x30000000, 0x00000000,
>> 0x80000901, 0x00010000, 0x00000000, 0x00000000,
>> }},
>> - { .gen_ver = 1270, .size = 60, .code = (const uint32_t []) {
>> + { .gen_ver = 1270, .size = 64, .code = (const uint32_t []) {
>> 0x80040061, 0x04054220, 0x00000000, 0x00000000,
>> - 0x80000061, 0x05054220, 0x00000000, 0xc0ded003,
>> - 0x80000069, 0x04058220, 0x02000024, 0xc0ded000,
>> + 0x80000061, 0x05054220, 0x00000000, 0xc0ded004,
>> + 0x80000040, 0x04058220, 0x02000024, 0xc0ded001,
>> + 0x80001969, 0x04058220, 0x02000404, 0xc0ded000,
>> 0x80000061, 0x04250220, 0x000000c4, 0x00000000,
>> - 0x80001940, 0x04258220, 0x02000424, 0xc0ded001,
>> - 0x80000061, 0x04454220, 0x00000000, 0xc0ded002,
>> + 0x80001940, 0x04258220, 0x02000424, 0xc0ded002,
>> + 0x80000061, 0x04454220, 0x00000000, 0xc0ded003,
>> 0x80000061, 0x04850220, 0x000000a4, 0x00000000,
>> - 0x80000965, 0x03058220, 0x02008020, 0xc0ded004,
>> + 0x80000965, 0x03058220, 0x02008020, 0xc0ded005,
>> 0x80000961, 0x30014220, 0x00000000, 0x00000000,
>> - 0x80001a70, 0x00018220, 0x12000304, 0xc0ded005,
>> + 0x80001a70, 0x00018220, 0x12000304, 0xc0ded006,
>> 0x80001a01, 0x00010000, 0x00000000, 0x00000000,
>> 0x81044031, 0x00000000, 0xc0000414, 0x02a00000,
>> 0x80000001, 0x00010000, 0x20000000, 0x00000000,
>> 0x80000001, 0x00010000, 0x30000000, 0x00000000,
>> 0x80000901, 0x00010000, 0x00000000, 0x00000000,
>> }},
>> - { .gen_ver = 1260, .size = 56, .code = (const uint32_t []) {
>> + { .gen_ver = 1260, .size = 60, .code = (const uint32_t []) {
>> 0x80100061, 0x04054220, 0x00000000, 0x00000000,
>> - 0x80000061, 0x05054220, 0x00000000, 0xc0ded003,
>> - 0x80000069, 0x04058220, 0x02000014, 0xc0ded000,
>> + 0x80000061, 0x05054220, 0x00000000, 0xc0ded004,
>> + 0x80000040, 0x04058220, 0x02000014, 0xc0ded001,
>> + 0x80001969, 0x04058220, 0x02000404, 0xc0ded000,
>> 0x80000061, 0x04150220, 0x00000064, 0x00000000,
>> - 0x80001940, 0x04158220, 0x02000414, 0xc0ded001,
>> - 0x80000061, 0x04254220, 0x00000000, 0xc0ded002,
>> + 0x80001940, 0x04158220, 0x02000414, 0xc0ded002,
>> + 0x80000061, 0x04254220, 0x00000000, 0xc0ded003,
>> 0x80000061, 0x04450220, 0x00000054, 0x00000000,
>> - 0x80000965, 0x03058220, 0x02008010, 0xc0ded004,
>> + 0x80000965, 0x03058220, 0x02008010, 0xc0ded005,
>> 0x80000961, 0x30014220, 0x00000000, 0x00000000,
>> - 0x80001a70, 0x00018220, 0x12000304, 0xc0ded005,
>> + 0x80001a70, 0x00018220, 0x12000304, 0xc0ded006,
>> 0x84134031, 0x00000000, 0xc0000414, 0x02a00000,
>> 0x80000001, 0x00010000, 0x20000000, 0x00000000,
>> 0x80000001, 0x00010000, 0x30000000, 0x00000000,
>> 0x80000901, 0x00010000, 0x00000000, 0x00000000,
>> }},
>> - { .gen_ver = 1250, .size = 60, .code = (const uint32_t []) {
>> + { .gen_ver = 1250, .size = 64, .code = (const uint32_t []) {
>> 0x80040061, 0x04054220, 0x00000000, 0x00000000,
>> - 0x80000061, 0x05054220, 0x00000000, 0xc0ded003,
>> - 0x80000069, 0x04058220, 0x02000024, 0xc0ded000,
>> + 0x80000061, 0x05054220, 0x00000000, 0xc0ded004,
>> + 0x80000040, 0x04058220, 0x02000024, 0xc0ded001,
>> + 0x80001969, 0x04058220, 0x02000404, 0xc0ded000,
>> 0x80000061, 0x04250220, 0x000000c4, 0x00000000,
>> - 0x80001940, 0x04258220, 0x02000424, 0xc0ded001,
>> - 0x80000061, 0x04454220, 0x00000000, 0xc0ded002,
>> + 0x80001940, 0x04258220, 0x02000424, 0xc0ded002,
>> + 0x80000061, 0x04454220, 0x00000000, 0xc0ded003,
>> 0x80000061, 0x04850220, 0x000000a4, 0x00000000,
>> - 0x80000965, 0x03058220, 0x02008020, 0xc0ded004,
>> + 0x80000965, 0x03058220, 0x02008020, 0xc0ded005,
>> 0x80000961, 0x30014220, 0x00000000, 0x00000000,
>> - 0x80001a70, 0x00018220, 0x12000304, 0xc0ded005,
>> + 0x80001a70, 0x00018220, 0x12000304, 0xc0ded006,
>> 0x80001a01, 0x00010000, 0x00000000, 0x00000000,
>> 0x81044031, 0x00000000, 0xc0000414, 0x02a00000,
>> 0x80000001, 0x00010000, 0x20000000, 0x00000000,
>> 0x80000001, 0x00010000, 0x30000000, 0x00000000,
>> 0x80000901, 0x00010000, 0x00000000, 0x00000000,
>> }},
>> - { .gen_ver = 0, .size = 56, .code = (const uint32_t []) {
>> + { .gen_ver = 0, .size = 60, .code = (const uint32_t []) {
>> 0x80040061, 0x04054220, 0x00000000, 0x00000000,
>> - 0x80000061, 0x05054220, 0x00000000, 0xc0ded003,
>> - 0x80000069, 0x04058220, 0x02000024, 0xc0ded000,
>> + 0x80000061, 0x05054220, 0x00000000, 0xc0ded004,
>> + 0x80000040, 0x04058220, 0x02000024, 0xc0ded001,
>> + 0x80000169, 0x04058220, 0x02000404, 0xc0ded000,
>> 0x80000061, 0x04250220, 0x000000c4, 0x00000000,
>> - 0x80000140, 0x04258220, 0x02000424, 0xc0ded001,
>> - 0x80000061, 0x04454220, 0x00000000, 0xc0ded002,
>> + 0x80000140, 0x04258220, 0x02000424, 0xc0ded002,
>> + 0x80000061, 0x04454220, 0x00000000, 0xc0ded003,
>> 0x80000061, 0x04850220, 0x000000a4, 0x00000000,
>> - 0x80000165, 0x03058220, 0x02008020, 0xc0ded004,
>> + 0x80000165, 0x03058220, 0x02008020, 0xc0ded005,
>> 0x80000161, 0x30014220, 0x00000000, 0x00000000,
>> - 0x80000270, 0x00018220, 0x12000304, 0xc0ded005,
>> + 0x80000270, 0x00018220, 0x12000304, 0xc0ded006,
>> 0x8104a031, 0x00000000, 0xc0000414, 0x02a00000,
>> 0x80000001, 0x00010000, 0x20000000, 0x00000000,
>> 0x80000001, 0x00010000, 0x30000000, 0x00000000,
>> diff --git a/tests/intel/xe_exec_sip.c b/tests/intel/xe_exec_sip.c
>> index ee4787d61..ed27d9c32 100644
>> --- a/tests/intel/xe_exec_sip.c
>> +++ b/tests/intel/xe_exec_sip.c
>> @@ -93,14 +93,14 @@ static struct gpgpu_shader *get_shader(int fd, enum shader_type shader_type)
>> case SHADER_INV_INSTR_DISABLED:
>> case SHADER_INV_INSTR_WALKER_ENABLED:
>> bad = (shader_type == SHADER_INV_INSTR_DISABLED) ? ILLEGAL_OPCODE_ENABLE : 0;
>> - gpgpu_shader__write_on_exception(shader, 1, 0, ILLEGAL_OPCODE_ENABLE, bad);
>> + gpgpu_shader__write_on_exception(shader, 1, 0, 0, ILLEGAL_OPCODE_ENABLE, bad);
>> gpgpu_shader__nop(shader);
>> gpgpu_shader__nop(shader);
>> /* modify second nop, set only opcode bits[6:0] */
>> shader->instr[gpgpu_shader_last_instr(shader)][0] = 0x7f;
>> /* SIP should clear exception bit */
>> bad = ILLEGAL_OPCODE_STATUS;
>> - gpgpu_shader__write_on_exception(shader, 2, 0, ILLEGAL_OPCODE_STATUS, bad);
>> + gpgpu_shader__write_on_exception(shader, 2, 0, 0, ILLEGAL_OPCODE_STATUS, bad);
>> break;
>> }
>>
>> @@ -120,7 +120,7 @@ static struct gpgpu_shader *get_sip(int fd, enum sip_type sip_type, unsigned int
>>
>> switch (sip_type) {
>> case SIP_INV_INSTR:
>> - gpgpu_shader__write_on_exception(sip, 1, y_offset, ILLEGAL_OPCODE_STATUS, 0);
>> + gpgpu_shader__write_on_exception(sip, 1, 0, y_offset, ILLEGAL_OPCODE_STATUS, 0);
>> break;
>> default:
>> break;
>> --
>> 2.34.1
>>
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