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freedreno/regs: Document a7xx CP_FIXED_STRIDE_DRAW_TABLE

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Executes an array of fixed-size command buffers where each
buffer is assumed to have one draw call, skipping buffers with
non-visible draw calls.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23881>
This commit is contained in:
Connor Abbott
2023-06-28 17:25:12 +01:00
committed by Marge Bot
parent 8185fac66b
commit 912bafbdd5
2 changed files with 60 additions and 0 deletions
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41
src/freedreno/decode/cffdec.c
View File

@@ -2381,6 +2381,45 @@ cp_start_bin(uint32_t *dwords, uint32_t sizedwords, int level)
}
}
static void
cp_fixed_stride_draw_table(uint32_t *dwords, uint32_t sizedwords, int level)
{
uint64_t ibaddr;
uint32_t ibsize;
uint32_t loopcount;
uint32_t *ptr = NULL;
loopcount = dwords[3];
ibaddr = dwords[0];
ibaddr |= ((uint64_t)dwords[1]) << 32;
ibsize = dwords[2] >> 20;
/* map gpuaddr back to hostptr: */
ptr = hostptr(ibaddr);
if (ptr) {
/* If the GPU hung within the target IB, the trigger point will be
* just after the current CP_START_BIN. Because the IB is
* executed but never returns. Account for this by checking if
* the IB returned:
*/
highlight_gpuaddr(gpuaddr(&dwords[5]));
ib++;
for (uint32_t i = 0; i < loopcount; i++) {
ibs[ib].base = ibaddr;
ibs[ib].size = ibsize;
printl(3, "%sdraw %u\n", levels[level], i);
dump_commands(ptr, ibsize, level);
ibaddr += ibsize;
ptr += ibsize;
}
ib--;
} else {
fprintf(stderr, "could not find: %016" PRIx64 " (%d)\n", ibaddr, ibsize);
}
}
static void
cp_wfi(uint32_t *dwords, uint32_t sizedwords, int level)
{
@@ -2894,6 +2933,8 @@ static const struct type3_op {
CP(START_BIN, cp_start_bin),
CP(FIXED_STRIDE_DRAW_TABLE, cp_fixed_stride_draw_table),
/* for a7xx */
CP(THREAD_CONTROL, cp_set_thread_control),
CP(CONTEXT_REG_BUNCH2, cp_context_reg_bunch2),

19
src/freedreno/registers/adreno/adreno_pm4.xml
View File

@@ -625,6 +625,13 @@ xsi:schemaLocation="http://nouveau.freedesktop.org/ rules-ng.xsd">
<!-- similar to CP_CONTEXT_REG_BUNCH, but discards first two dwords?? -->
<value name="CP_CONTEXT_REG_BUNCH2" value="0x5d" variants="A7XX-"/>
<value name="CP_UNK49" value="0x49" variants="A7XX-"/> <!-- payload 4 dwords, last two address of something -->
<doc>
Executes an array of fixed-size command buffers where each
buffer is assumed to have one draw call, skipping buffers with
non-visible draw calls.
</doc>
<value name="CP_FIXED_STRIDE_DRAW_TABLE" value="0x7f" variants="A7XX-"/>
</enum>
@@ -1981,5 +1988,17 @@ opcode: CP_LOAD_STATE4 (30) (4 dwords)
</reg32>
</domain>
<domain name="CP_FIXED_STRIDE_DRAW_TABLE" width="32">
<reg64 offset="0" name="IB_BASE"/>
<reg32 offset="2" name="2">
<!-- STRIDE * COUNT -->
<bitfield name="IB_SIZE" low="0" high="11"/>
<bitfield name="STRIDE" low="20" high="31"/>
</reg32>
<reg32 offset="3" name="3">
<bitfield name="COUNT" low="0" high="31"/>
</reg32>
</domain>
</database>