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OpenCloudOS-Kernel/drivers/gpu/drm/amd/amdgpu/atom.c

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/*
* Copyright 2008 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Author: Stanislaw Skowronek
*/
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
#define ATOM_DEBUG
#include "atom.h"
#include "atom-names.h"
#include "atom-bits.h"
#include "amdgpu.h"
#define ATOM_COND_ABOVE 0
#define ATOM_COND_ABOVEOREQUAL 1
#define ATOM_COND_ALWAYS 2
#define ATOM_COND_BELOW 3
#define ATOM_COND_BELOWOREQUAL 4
#define ATOM_COND_EQUAL 5
#define ATOM_COND_NOTEQUAL 6
#define ATOM_PORT_ATI 0
#define ATOM_PORT_PCI 1
#define ATOM_PORT_SYSIO 2
#define ATOM_UNIT_MICROSEC 0
#define ATOM_UNIT_MILLISEC 1
#define PLL_INDEX 2
#define PLL_DATA 3
typedef struct {
struct atom_context *ctx;
uint32_t *ps, *ws;
int ps_shift;
uint16_t start;
unsigned last_jump;
unsigned long last_jump_jiffies;
bool abort;
} atom_exec_context;
int amdgpu_atom_debug = 0;
static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
static uint32_t atom_arg_mask[8] =
{ 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
0xFF000000 };
static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
static int atom_dst_to_src[8][4] = {
/* translate destination alignment field to the source alignment encoding */
{0, 0, 0, 0},
{1, 2, 3, 0},
{1, 2, 3, 0},
{1, 2, 3, 0},
{4, 5, 6, 7},
{4, 5, 6, 7},
{4, 5, 6, 7},
{4, 5, 6, 7},
};
static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
static int debug_depth = 0;
#ifdef ATOM_DEBUG
static void debug_print_spaces(int n)
{
while (n--)
printk(" ");
}
#define DEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
#define SDEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
#else
#define DEBUG(...) do { } while (0)
#define SDEBUG(...) do { } while (0)
#endif
static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
uint32_t index, uint32_t data)
{
uint32_t temp = 0xCDCDCDCD;
while (1)
switch (CU8(base)) {
case ATOM_IIO_NOP:
base++;
break;
case ATOM_IIO_READ:
temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1));
base += 3;
break;
case ATOM_IIO_WRITE:
ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
base += 3;
break;
case ATOM_IIO_CLEAR:
temp &=
~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
CU8(base + 2));
base += 3;
break;
case ATOM_IIO_SET:
temp |=
(0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
2);
base += 3;
break;
case ATOM_IIO_MOVE_INDEX:
temp &=
~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
CU8(base + 3));
temp |=
((index >> CU8(base + 2)) &
(0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
3);
base += 4;
break;
case ATOM_IIO_MOVE_DATA:
temp &=
~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
CU8(base + 3));
temp |=
((data >> CU8(base + 2)) &
(0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
3);
base += 4;
break;
case ATOM_IIO_MOVE_ATTR:
temp &=
~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
CU8(base + 3));
temp |=
((ctx->
io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
CU8
(base
+
1))))
<< CU8(base + 3);
base += 4;
break;
case ATOM_IIO_END:
return temp;
default:
pr_info("Unknown IIO opcode\n");
return 0;
}
}
static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
int *ptr, uint32_t *saved, int print)
{
uint32_t idx, val = 0xCDCDCDCD, align, arg;
struct atom_context *gctx = ctx->ctx;
arg = attr & 7;
align = (attr >> 3) & 7;
switch (arg) {
case ATOM_ARG_REG:
idx = U16(*ptr);
(*ptr) += 2;
if (print)
DEBUG("REG[0x%04X]", idx);
idx += gctx->reg_block;
switch (gctx->io_mode) {
case ATOM_IO_MM:
val = gctx->card->reg_read(gctx->card, idx);
break;
case ATOM_IO_PCI:
pr_info("PCI registers are not implemented\n");
return 0;
case ATOM_IO_SYSIO:
pr_info("SYSIO registers are not implemented\n");
return 0;
default:
if (!(gctx->io_mode & 0x80)) {
pr_info("Bad IO mode\n");
return 0;
}
if (!gctx->iio[gctx->io_mode & 0x7F]) {
pr_info("Undefined indirect IO read method %d\n",
gctx->io_mode & 0x7F);
return 0;
}
val =
atom_iio_execute(gctx,
gctx->iio[gctx->io_mode & 0x7F],
idx, 0);
}
break;
case ATOM_ARG_PS:
idx = U8(*ptr);
(*ptr)++;
/* get_unaligned_le32 avoids unaligned accesses from atombios
* tables, noticed on a DEC Alpha. */
val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
if (print)
DEBUG("PS[0x%02X,0x%04X]", idx, val);
break;
case ATOM_ARG_WS:
idx = U8(*ptr);
(*ptr)++;
if (print)
DEBUG("WS[0x%02X]", idx);
switch (idx) {
case ATOM_WS_QUOTIENT:
val = gctx->divmul[0];
break;
case ATOM_WS_REMAINDER:
val = gctx->divmul[1];
break;
case ATOM_WS_DATAPTR:
val = gctx->data_block;
break;
case ATOM_WS_SHIFT:
val = gctx->shift;
break;
case ATOM_WS_OR_MASK:
val = 1 << gctx->shift;
break;
case ATOM_WS_AND_MASK:
val = ~(1 << gctx->shift);
break;
case ATOM_WS_FB_WINDOW:
val = gctx->fb_base;
break;
case ATOM_WS_ATTRIBUTES:
val = gctx->io_attr;
break;
case ATOM_WS_REGPTR:
val = gctx->reg_block;
break;
default:
val = ctx->ws[idx];
}
break;
case ATOM_ARG_ID:
idx = U16(*ptr);
(*ptr) += 2;
if (print) {
if (gctx->data_block)
DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
else
DEBUG("ID[0x%04X]", idx);
}
val = U32(idx + gctx->data_block);
break;
case ATOM_ARG_FB:
idx = U8(*ptr);
(*ptr)++;
if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
val = 0;
} else
val = gctx->scratch[(gctx->fb_base / 4) + idx];
if (print)
DEBUG("FB[0x%02X]", idx);
break;
case ATOM_ARG_IMM:
switch (align) {
case ATOM_SRC_DWORD:
val = U32(*ptr);
(*ptr) += 4;
if (print)
DEBUG("IMM 0x%08X\n", val);
return val;
case ATOM_SRC_WORD0:
case ATOM_SRC_WORD8:
case ATOM_SRC_WORD16:
val = U16(*ptr);
(*ptr) += 2;
if (print)
DEBUG("IMM 0x%04X\n", val);
return val;
case ATOM_SRC_BYTE0:
case ATOM_SRC_BYTE8:
case ATOM_SRC_BYTE16:
case ATOM_SRC_BYTE24:
val = U8(*ptr);
(*ptr)++;
if (print)
DEBUG("IMM 0x%02X\n", val);
return val;
}
return 0;
case ATOM_ARG_PLL:
idx = U8(*ptr);
(*ptr)++;
if (print)
DEBUG("PLL[0x%02X]", idx);
val = gctx->card->pll_read(gctx->card, idx);
break;
case ATOM_ARG_MC:
idx = U8(*ptr);
(*ptr)++;
if (print)
DEBUG("MC[0x%02X]", idx);
val = gctx->card->mc_read(gctx->card, idx);
break;
}
if (saved)
*saved = val;
val &= atom_arg_mask[align];
val >>= atom_arg_shift[align];
if (print)
switch (align) {
case ATOM_SRC_DWORD:
DEBUG(".[31:0] -> 0x%08X\n", val);
break;
case ATOM_SRC_WORD0:
DEBUG(".[15:0] -> 0x%04X\n", val);
break;
case ATOM_SRC_WORD8:
DEBUG(".[23:8] -> 0x%04X\n", val);
break;
case ATOM_SRC_WORD16:
DEBUG(".[31:16] -> 0x%04X\n", val);
break;
case ATOM_SRC_BYTE0:
DEBUG(".[7:0] -> 0x%02X\n", val);
break;
case ATOM_SRC_BYTE8:
DEBUG(".[15:8] -> 0x%02X\n", val);
break;
case ATOM_SRC_BYTE16:
DEBUG(".[23:16] -> 0x%02X\n", val);
break;
case ATOM_SRC_BYTE24:
DEBUG(".[31:24] -> 0x%02X\n", val);
break;
}
return val;
}
static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
{
uint32_t align = (attr >> 3) & 7, arg = attr & 7;
switch (arg) {
case ATOM_ARG_REG:
case ATOM_ARG_ID:
(*ptr) += 2;
break;
case ATOM_ARG_PLL:
case ATOM_ARG_MC:
case ATOM_ARG_PS:
case ATOM_ARG_WS:
case ATOM_ARG_FB:
(*ptr)++;
break;
case ATOM_ARG_IMM:
switch (align) {
case ATOM_SRC_DWORD:
(*ptr) += 4;
return;
case ATOM_SRC_WORD0:
case ATOM_SRC_WORD8:
case ATOM_SRC_WORD16:
(*ptr) += 2;
return;
case ATOM_SRC_BYTE0:
case ATOM_SRC_BYTE8:
case ATOM_SRC_BYTE16:
case ATOM_SRC_BYTE24:
(*ptr)++;
return;
}
return;
}
}
static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
{
return atom_get_src_int(ctx, attr, ptr, NULL, 1);
}
static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
{
uint32_t val = 0xCDCDCDCD;
switch (align) {
case ATOM_SRC_DWORD:
val = U32(*ptr);
(*ptr) += 4;
break;
case ATOM_SRC_WORD0:
case ATOM_SRC_WORD8:
case ATOM_SRC_WORD16:
val = U16(*ptr);
(*ptr) += 2;
break;
case ATOM_SRC_BYTE0:
case ATOM_SRC_BYTE8:
case ATOM_SRC_BYTE16:
case ATOM_SRC_BYTE24:
val = U8(*ptr);
(*ptr)++;
break;
}
return val;
}
static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
int *ptr, uint32_t *saved, int print)
{
return atom_get_src_int(ctx,
arg | atom_dst_to_src[(attr >> 3) &
7][(attr >> 6) & 3] << 3,
ptr, saved, print);
}
static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
{
atom_skip_src_int(ctx,
arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
3] << 3, ptr);
}
static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
int *ptr, uint32_t val, uint32_t saved)
{
uint32_t align =
atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
val, idx;
struct atom_context *gctx = ctx->ctx;
old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
val <<= atom_arg_shift[align];
val &= atom_arg_mask[align];
saved &= ~atom_arg_mask[align];
val |= saved;
switch (arg) {
case ATOM_ARG_REG:
idx = U16(*ptr);
(*ptr) += 2;
DEBUG("REG[0x%04X]", idx);
idx += gctx->reg_block;
switch (gctx->io_mode) {
case ATOM_IO_MM:
if (idx == 0)
gctx->card->reg_write(gctx->card, idx,
val << 2);
else
gctx->card->reg_write(gctx->card, idx, val);
break;
case ATOM_IO_PCI:
pr_info("PCI registers are not implemented\n");
return;
case ATOM_IO_SYSIO:
pr_info("SYSIO registers are not implemented\n");
return;
default:
if (!(gctx->io_mode & 0x80)) {
pr_info("Bad IO mode\n");
return;
}
if (!gctx->iio[gctx->io_mode & 0xFF]) {
pr_info("Undefined indirect IO write method %d\n",
gctx->io_mode & 0x7F);
return;
}
atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
idx, val);
}
break;
case ATOM_ARG_PS:
idx = U8(*ptr);
(*ptr)++;
DEBUG("PS[0x%02X]", idx);
ctx->ps[idx] = cpu_to_le32(val);
break;
case ATOM_ARG_WS:
idx = U8(*ptr);
(*ptr)++;
DEBUG("WS[0x%02X]", idx);
switch (idx) {
case ATOM_WS_QUOTIENT:
gctx->divmul[0] = val;
break;
case ATOM_WS_REMAINDER:
gctx->divmul[1] = val;
break;
case ATOM_WS_DATAPTR:
gctx->data_block = val;
break;
case ATOM_WS_SHIFT:
gctx->shift = val;
break;
case ATOM_WS_OR_MASK:
case ATOM_WS_AND_MASK:
break;
case ATOM_WS_FB_WINDOW:
gctx->fb_base = val;
break;
case ATOM_WS_ATTRIBUTES:
gctx->io_attr = val;
break;
case ATOM_WS_REGPTR:
gctx->reg_block = val;
break;
default:
ctx->ws[idx] = val;
}
break;
case ATOM_ARG_FB:
idx = U8(*ptr);
(*ptr)++;
if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
} else
gctx->scratch[(gctx->fb_base / 4) + idx] = val;
DEBUG("FB[0x%02X]", idx);
break;
case ATOM_ARG_PLL:
idx = U8(*ptr);
(*ptr)++;
DEBUG("PLL[0x%02X]", idx);
gctx->card->pll_write(gctx->card, idx, val);
break;
case ATOM_ARG_MC:
idx = U8(*ptr);
(*ptr)++;
DEBUG("MC[0x%02X]", idx);
gctx->card->mc_write(gctx->card, idx, val);
return;
}
switch (align) {
case ATOM_SRC_DWORD:
DEBUG(".[31:0] <- 0x%08X\n", old_val);
break;
case ATOM_SRC_WORD0:
DEBUG(".[15:0] <- 0x%04X\n", old_val);
break;
case ATOM_SRC_WORD8:
DEBUG(".[23:8] <- 0x%04X\n", old_val);
break;
case ATOM_SRC_WORD16:
DEBUG(".[31:16] <- 0x%04X\n", old_val);
break;
case ATOM_SRC_BYTE0:
DEBUG(".[7:0] <- 0x%02X\n", old_val);
break;
case ATOM_SRC_BYTE8:
DEBUG(".[15:8] <- 0x%02X\n", old_val);
break;
case ATOM_SRC_BYTE16:
DEBUG(".[23:16] <- 0x%02X\n", old_val);
break;
case ATOM_SRC_BYTE24:
DEBUG(".[31:24] <- 0x%02X\n", old_val);
break;
}
}
static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src, saved;
int dptr = *ptr;
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
SDEBUG(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst += src;
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src, saved;
int dptr = *ptr;
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
SDEBUG(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst &= src;
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
{
printk("ATOM BIOS beeped!\n");
}
static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
{
int idx = U8((*ptr)++);
int r = 0;
if (idx < ATOM_TABLE_NAMES_CNT)
SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
else
SDEBUG(" table: %d\n", idx);
if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
r = amdgpu_atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
if (r) {
ctx->abort = true;
}
}
static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t saved;
int dptr = *ptr;
attr &= 0x38;
attr |= atom_def_dst[attr >> 3] << 6;
atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
}
static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src;
SDEBUG(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
SDEBUG(" src2: ");
src = atom_get_src(ctx, attr, ptr);
ctx->ctx->cs_equal = (dst == src);
ctx->ctx->cs_above = (dst > src);
SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
ctx->ctx->cs_above ? "GT" : "LE");
}
static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
{
unsigned count = U8((*ptr)++);
SDEBUG(" count: %d\n", count);
if (arg == ATOM_UNIT_MICROSEC)
udelay(count);
else if (!drm_can_sleep())
mdelay(count);
else
msleep(count);
}
static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src;
SDEBUG(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
SDEBUG(" src2: ");
src = atom_get_src(ctx, attr, ptr);
if (src != 0) {
ctx->ctx->divmul[0] = dst / src;
ctx->ctx->divmul[1] = dst % src;
} else {
ctx->ctx->divmul[0] = 0;
ctx->ctx->divmul[1] = 0;
}
}
static void atom_op_div32(atom_exec_context *ctx, int *ptr, int arg)
{
uint64_t val64;
uint8_t attr = U8((*ptr)++);
uint32_t dst, src;
SDEBUG(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
SDEBUG(" src2: ");
src = atom_get_src(ctx, attr, ptr);
if (src != 0) {
val64 = dst;
val64 |= ((uint64_t)ctx->ctx->divmul[1]) << 32;
do_div(val64, src);
ctx->ctx->divmul[0] = lower_32_bits(val64);
ctx->ctx->divmul[1] = upper_32_bits(val64);
} else {
ctx->ctx->divmul[0] = 0;
ctx->ctx->divmul[1] = 0;
}
}
static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
{
/* functionally, a nop */
}
static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
{
int execute = 0, target = U16(*ptr);
unsigned long cjiffies;
(*ptr) += 2;
switch (arg) {
case ATOM_COND_ABOVE:
execute = ctx->ctx->cs_above;
break;
case ATOM_COND_ABOVEOREQUAL:
execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
break;
case ATOM_COND_ALWAYS:
execute = 1;
break;
case ATOM_COND_BELOW:
execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
break;
case ATOM_COND_BELOWOREQUAL:
execute = !ctx->ctx->cs_above;
break;
case ATOM_COND_EQUAL:
execute = ctx->ctx->cs_equal;
break;
case ATOM_COND_NOTEQUAL:
execute = !ctx->ctx->cs_equal;
break;
}
if (arg != ATOM_COND_ALWAYS)
SDEBUG(" taken: %s\n", execute ? "yes" : "no");
SDEBUG(" target: 0x%04X\n", target);
if (execute) {
if (ctx->last_jump == (ctx->start + target)) {
cjiffies = jiffies;
if (time_after(cjiffies, ctx->last_jump_jiffies)) {
cjiffies -= ctx->last_jump_jiffies;
if ((jiffies_to_msecs(cjiffies) > 5000)) {
DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
ctx->abort = true;
}
} else {
/* jiffies wrap around we will just wait a little longer */
ctx->last_jump_jiffies = jiffies;
}
} else {
ctx->last_jump = ctx->start + target;
ctx->last_jump_jiffies = jiffies;
}
*ptr = ctx->start + target;
}
}
static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, mask, src, saved;
int dptr = *ptr;
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
SDEBUG(" mask: 0x%08x", mask);
SDEBUG(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst &= mask;
dst |= src;
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t src, saved;
int dptr = *ptr;
if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
else {
atom_skip_dst(ctx, arg, attr, ptr);
saved = 0xCDCDCDCD;
}
SDEBUG(" src: ");
src = atom_get_src(ctx, attr, ptr);
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, src, saved);
}
static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src;
SDEBUG(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
SDEBUG(" src2: ");
src = atom_get_src(ctx, attr, ptr);
ctx->ctx->divmul[0] = dst * src;
}
static void atom_op_mul32(atom_exec_context *ctx, int *ptr, int arg)
{
uint64_t val64;
uint8_t attr = U8((*ptr)++);
uint32_t dst, src;
SDEBUG(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
SDEBUG(" src2: ");
src = atom_get_src(ctx, attr, ptr);
val64 = (uint64_t)dst * (uint64_t)src;
ctx->ctx->divmul[0] = lower_32_bits(val64);
ctx->ctx->divmul[1] = upper_32_bits(val64);
}
static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
{
/* nothing */
}
static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src, saved;
int dptr = *ptr;
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
SDEBUG(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst |= src;
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t val = U8((*ptr)++);
SDEBUG("POST card output: 0x%02X\n", val);
}
static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
{
pr_info("unimplemented!\n");
}
static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
{
pr_info("unimplemented!\n");
}
static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
{
pr_info("unimplemented!\n");
}
static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
{
int idx = U8(*ptr);
(*ptr)++;
SDEBUG(" block: %d\n", idx);
if (!idx)
ctx->ctx->data_block = 0;
else if (idx == 255)
ctx->ctx->data_block = ctx->start;
else
ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
}
static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
SDEBUG(" fb_base: ");
ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
}
static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
{
int port;
switch (arg) {
case ATOM_PORT_ATI:
port = U16(*ptr);
if (port < ATOM_IO_NAMES_CNT)
SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
else
SDEBUG(" port: %d\n", port);
if (!port)
ctx->ctx->io_mode = ATOM_IO_MM;
else
ctx->ctx->io_mode = ATOM_IO_IIO | port;
(*ptr) += 2;
break;
case ATOM_PORT_PCI:
ctx->ctx->io_mode = ATOM_IO_PCI;
(*ptr)++;
break;
case ATOM_PORT_SYSIO:
ctx->ctx->io_mode = ATOM_IO_SYSIO;
(*ptr)++;
break;
}
}
static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
{
ctx->ctx->reg_block = U16(*ptr);
(*ptr) += 2;
SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
}
static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++), shift;
uint32_t saved, dst;
int dptr = *ptr;
attr &= 0x38;
attr |= atom_def_dst[attr >> 3] << 6;
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
SDEBUG(" shift: %d\n", shift);
dst <<= shift;
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++), shift;
uint32_t saved, dst;
int dptr = *ptr;
attr &= 0x38;
attr |= atom_def_dst[attr >> 3] << 6;
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
SDEBUG(" shift: %d\n", shift);
dst >>= shift;
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++), shift;
uint32_t saved, dst;
int dptr = *ptr;
uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
/* op needs to full dst value */
dst = saved;
shift = atom_get_src(ctx, attr, ptr);
SDEBUG(" shift: %d\n", shift);
dst <<= shift;
dst &= atom_arg_mask[dst_align];
dst >>= atom_arg_shift[dst_align];
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++), shift;
uint32_t saved, dst;
int dptr = *ptr;
uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
/* op needs to full dst value */
dst = saved;
shift = atom_get_src(ctx, attr, ptr);
SDEBUG(" shift: %d\n", shift);
dst >>= shift;
dst &= atom_arg_mask[dst_align];
dst >>= atom_arg_shift[dst_align];
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src, saved;
int dptr = *ptr;
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
SDEBUG(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst -= src;
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t src, val, target;
SDEBUG(" switch: ");
src = atom_get_src(ctx, attr, ptr);
while (U16(*ptr) != ATOM_CASE_END)
if (U8(*ptr) == ATOM_CASE_MAGIC) {
(*ptr)++;
SDEBUG(" case: ");
val =
atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
ptr);
target = U16(*ptr);
if (val == src) {
SDEBUG(" target: %04X\n", target);
*ptr = ctx->start + target;
return;
}
(*ptr) += 2;
} else {
pr_info("Bad case\n");
return;
}
(*ptr) += 2;
}
static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src;
SDEBUG(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
SDEBUG(" src2: ");
src = atom_get_src(ctx, attr, ptr);
ctx->ctx->cs_equal = ((dst & src) == 0);
SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
}
static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src, saved;
int dptr = *ptr;
SDEBUG(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
SDEBUG(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst ^= src;
SDEBUG(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t val = U8((*ptr)++);
SDEBUG("DEBUG output: 0x%02X\n", val);
}
static void atom_op_processds(atom_exec_context *ctx, int *ptr, int arg)
{
uint16_t val = U16(*ptr);
(*ptr) += val + 2;
SDEBUG("PROCESSDS output: 0x%02X\n", val);
}
static struct {
void (*func) (atom_exec_context *, int *, int);
int arg;
} opcode_table[ATOM_OP_CNT] = {
{
NULL, 0}, {
atom_op_move, ATOM_ARG_REG}, {
atom_op_move, ATOM_ARG_PS}, {
atom_op_move, ATOM_ARG_WS}, {
atom_op_move, ATOM_ARG_FB}, {
atom_op_move, ATOM_ARG_PLL}, {
atom_op_move, ATOM_ARG_MC}, {
atom_op_and, ATOM_ARG_REG}, {
atom_op_and, ATOM_ARG_PS}, {
atom_op_and, ATOM_ARG_WS}, {
atom_op_and, ATOM_ARG_FB}, {
atom_op_and, ATOM_ARG_PLL}, {
atom_op_and, ATOM_ARG_MC}, {
atom_op_or, ATOM_ARG_REG}, {
atom_op_or, ATOM_ARG_PS}, {
atom_op_or, ATOM_ARG_WS}, {
atom_op_or, ATOM_ARG_FB}, {
atom_op_or, ATOM_ARG_PLL}, {
atom_op_or, ATOM_ARG_MC}, {
atom_op_shift_left, ATOM_ARG_REG}, {
atom_op_shift_left, ATOM_ARG_PS}, {
atom_op_shift_left, ATOM_ARG_WS}, {
atom_op_shift_left, ATOM_ARG_FB}, {
atom_op_shift_left, ATOM_ARG_PLL}, {
atom_op_shift_left, ATOM_ARG_MC}, {
atom_op_shift_right, ATOM_ARG_REG}, {
atom_op_shift_right, ATOM_ARG_PS}, {
atom_op_shift_right, ATOM_ARG_WS}, {
atom_op_shift_right, ATOM_ARG_FB}, {
atom_op_shift_right, ATOM_ARG_PLL}, {
atom_op_shift_right, ATOM_ARG_MC}, {
atom_op_mul, ATOM_ARG_REG}, {
atom_op_mul, ATOM_ARG_PS}, {
atom_op_mul, ATOM_ARG_WS}, {
atom_op_mul, ATOM_ARG_FB}, {
atom_op_mul, ATOM_ARG_PLL}, {
atom_op_mul, ATOM_ARG_MC}, {
atom_op_div, ATOM_ARG_REG}, {
atom_op_div, ATOM_ARG_PS}, {
atom_op_div, ATOM_ARG_WS}, {
atom_op_div, ATOM_ARG_FB}, {
atom_op_div, ATOM_ARG_PLL}, {
atom_op_div, ATOM_ARG_MC}, {
atom_op_add, ATOM_ARG_REG}, {
atom_op_add, ATOM_ARG_PS}, {
atom_op_add, ATOM_ARG_WS}, {
atom_op_add, ATOM_ARG_FB}, {
atom_op_add, ATOM_ARG_PLL}, {
atom_op_add, ATOM_ARG_MC}, {
atom_op_sub, ATOM_ARG_REG}, {
atom_op_sub, ATOM_ARG_PS}, {
atom_op_sub, ATOM_ARG_WS}, {
atom_op_sub, ATOM_ARG_FB}, {
atom_op_sub, ATOM_ARG_PLL}, {
atom_op_sub, ATOM_ARG_MC}, {
atom_op_setport, ATOM_PORT_ATI}, {
atom_op_setport, ATOM_PORT_PCI}, {
atom_op_setport, ATOM_PORT_SYSIO}, {
atom_op_setregblock, 0}, {
atom_op_setfbbase, 0}, {
atom_op_compare, ATOM_ARG_REG}, {
atom_op_compare, ATOM_ARG_PS}, {
atom_op_compare, ATOM_ARG_WS}, {
atom_op_compare, ATOM_ARG_FB}, {
atom_op_compare, ATOM_ARG_PLL}, {
atom_op_compare, ATOM_ARG_MC}, {
atom_op_switch, 0}, {
atom_op_jump, ATOM_COND_ALWAYS}, {
atom_op_jump, ATOM_COND_EQUAL}, {
atom_op_jump, ATOM_COND_BELOW}, {
atom_op_jump, ATOM_COND_ABOVE}, {
atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
atom_op_jump, ATOM_COND_NOTEQUAL}, {
atom_op_test, ATOM_ARG_REG}, {
atom_op_test, ATOM_ARG_PS}, {
atom_op_test, ATOM_ARG_WS}, {
atom_op_test, ATOM_ARG_FB}, {
atom_op_test, ATOM_ARG_PLL}, {
atom_op_test, ATOM_ARG_MC}, {
atom_op_delay, ATOM_UNIT_MILLISEC}, {
atom_op_delay, ATOM_UNIT_MICROSEC}, {
atom_op_calltable, 0}, {
atom_op_repeat, 0}, {
atom_op_clear, ATOM_ARG_REG}, {
atom_op_clear, ATOM_ARG_PS}, {
atom_op_clear, ATOM_ARG_WS}, {
atom_op_clear, ATOM_ARG_FB}, {
atom_op_clear, ATOM_ARG_PLL}, {
atom_op_clear, ATOM_ARG_MC}, {
atom_op_nop, 0}, {
atom_op_eot, 0}, {
atom_op_mask, ATOM_ARG_REG}, {
atom_op_mask, ATOM_ARG_PS}, {
atom_op_mask, ATOM_ARG_WS}, {
atom_op_mask, ATOM_ARG_FB}, {
atom_op_mask, ATOM_ARG_PLL}, {
atom_op_mask, ATOM_ARG_MC}, {
atom_op_postcard, 0}, {
atom_op_beep, 0}, {
atom_op_savereg, 0}, {
atom_op_restorereg, 0}, {
atom_op_setdatablock, 0}, {
atom_op_xor, ATOM_ARG_REG}, {
atom_op_xor, ATOM_ARG_PS}, {
atom_op_xor, ATOM_ARG_WS}, {
atom_op_xor, ATOM_ARG_FB}, {
atom_op_xor, ATOM_ARG_PLL}, {
atom_op_xor, ATOM_ARG_MC}, {
atom_op_shl, ATOM_ARG_REG}, {
atom_op_shl, ATOM_ARG_PS}, {
atom_op_shl, ATOM_ARG_WS}, {
atom_op_shl, ATOM_ARG_FB}, {
atom_op_shl, ATOM_ARG_PLL}, {
atom_op_shl, ATOM_ARG_MC}, {
atom_op_shr, ATOM_ARG_REG}, {
atom_op_shr, ATOM_ARG_PS}, {
atom_op_shr, ATOM_ARG_WS}, {
atom_op_shr, ATOM_ARG_FB}, {
atom_op_shr, ATOM_ARG_PLL}, {
atom_op_shr, ATOM_ARG_MC}, {
atom_op_debug, 0}, {
atom_op_processds, 0}, {
atom_op_mul32, ATOM_ARG_PS}, {
atom_op_mul32, ATOM_ARG_WS}, {
atom_op_div32, ATOM_ARG_PS}, {
atom_op_div32, ATOM_ARG_WS},
};
static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
{
int base = CU16(ctx->cmd_table + 4 + 2 * index);
int len, ws, ps, ptr;
unsigned char op;
atom_exec_context ectx;
int ret = 0;
if (!base)
return -EINVAL;
len = CU16(base + ATOM_CT_SIZE_PTR);
ws = CU8(base + ATOM_CT_WS_PTR);
ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
ptr = base + ATOM_CT_CODE_PTR;
SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
ectx.ctx = ctx;
ectx.ps_shift = ps / 4;
ectx.start = base;
ectx.ps = params;
ectx.abort = false;
ectx.last_jump = 0;
if (ws)
ectx.ws = kzalloc(4 * ws, GFP_KERNEL);
else
ectx.ws = NULL;
debug_depth++;
while (1) {
op = CU8(ptr++);
if (op < ATOM_OP_NAMES_CNT)
SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
else
SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
if (ectx.abort) {
DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
base, len, ws, ps, ptr - 1);
ret = -EINVAL;
goto free;
}
if (op < ATOM_OP_CNT && op > 0)
opcode_table[op].func(&ectx, &ptr,
opcode_table[op].arg);
else
break;
if (op == ATOM_OP_EOT)
break;
}
debug_depth--;
SDEBUG("<<\n");
free:
if (ws)
kfree(ectx.ws);
return ret;
}
int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
{
int r;
mutex_lock(&ctx->mutex);
/* reset data block */
ctx->data_block = 0;
/* reset reg block */
ctx->reg_block = 0;
/* reset fb window */
ctx->fb_base = 0;
/* reset io mode */
ctx->io_mode = ATOM_IO_MM;
/* reset divmul */
ctx->divmul[0] = 0;
ctx->divmul[1] = 0;
r = amdgpu_atom_execute_table_locked(ctx, index, params);
mutex_unlock(&ctx->mutex);
return r;
}
static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
static void atom_index_iio(struct atom_context *ctx, int base)
{
ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
if (!ctx->iio)
return;
while (CU8(base) == ATOM_IIO_START) {
ctx->iio[CU8(base + 1)] = base + 2;
base += 2;
while (CU8(base) != ATOM_IIO_END)
base += atom_iio_len[CU8(base)];
base += 3;
}
}
struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios)
{
int base;
struct atom_context *ctx =
kzalloc(sizeof(struct atom_context), GFP_KERNEL);
char *str;
u16 idx;
if (!ctx)
return NULL;
ctx->card = card;
ctx->bios = bios;
if (CU16(0) != ATOM_BIOS_MAGIC) {
pr_info("Invalid BIOS magic\n");
kfree(ctx);
return NULL;
}
if (strncmp
(CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
strlen(ATOM_ATI_MAGIC))) {
pr_info("Invalid ATI magic\n");
kfree(ctx);
return NULL;
}
base = CU16(ATOM_ROM_TABLE_PTR);
if (strncmp
(CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
strlen(ATOM_ROM_MAGIC))) {
pr_info("Invalid ATOM magic\n");
kfree(ctx);
return NULL;
}
ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
if (!ctx->iio) {
amdgpu_atom_destroy(ctx);
return NULL;
}
idx = CU16(ATOM_ROM_PART_NUMBER_PTR);
if (idx == 0)
idx = 0x80;
str = CSTR(idx);
if (*str != '\0')
pr_info("ATOM BIOS: %s\n", str);
return ctx;
}
int amdgpu_atom_asic_init(struct atom_context *ctx)
{
int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
uint32_t ps[16];
int ret;
memset(ps, 0, 64);
ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
if (!ps[0] || !ps[1])
return 1;
if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
return 1;
ret = amdgpu_atom_execute_table(ctx, ATOM_CMD_INIT, ps);
if (ret)
return ret;
memset(ps, 0, 64);
return ret;
}
void amdgpu_atom_destroy(struct atom_context *ctx)
{
kfree(ctx->iio);
kfree(ctx);
}
bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index,
uint16_t * size, uint8_t * frev, uint8_t * crev,
uint16_t * data_start)
{
int offset = index * 2 + 4;
int idx = CU16(ctx->data_table + offset);
u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
if (!mdt[index])
return false;
if (size)
*size = CU16(idx);
if (frev)
*frev = CU8(idx + 2);
if (crev)
*crev = CU8(idx + 3);
*data_start = idx;
return true;
}
bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
uint8_t * crev)
{
int offset = index * 2 + 4;
int idx = CU16(ctx->cmd_table + offset);
u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
if (!mct[index])
return false;
if (frev)
*frev = CU8(idx + 2);
if (crev)
*crev = CU8(idx + 3);
return true;
}
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