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freebsd-skq/sys/dev/drm2/radeon/atom.c
dumbbell e6c59cd5c0 drm: Update the device-independent code to match Linux 3.8.13 
This update brings few features:
    o  Support for the setmaster/dropmaster ioctls. For instance, they
       are used to run multiple X servers simultaneously.
    o  Support for minor devices. The only user-visible change is a new
       entry in /dev/dri but it is useless at the moment. This is a
       first step to support render nodes [1].

The main benefit is to greatly reduce the diff with Linux (at the
expense of an unreadable commit diff). Hopefully, next upgrades will be
easier.

No updates were made to the drivers, beside adapting them to API
changes.

[1] https://en.wikipedia.org/wiki/Direct_Rendering_Manager#Render_nodes

Tested by:	Many people
MFC after:	1 month
Relnotes:	yes
2015-03-17 18:50:33 +00:00

1404 lines
35 KiB
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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#define ATOM_DEBUG
#include "atom.h"
#include "atom-names.h"
#include "atom-bits.h"
#include "radeon.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 atom_debug = 0;
static int atom_execute_table_locked(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--)
printf(" ");
}
#define ATOM_DEBUG_PRINT(...) do if (atom_debug) { printf(__FILE__ __VA_ARGS__); } while (0)
#define ATOM_SDEBUG_PRINT(...) do if (atom_debug) { printf(__FILE__); debug_print_spaces(debug_depth); printf(__VA_ARGS__); } while (0)
#else
#define ATOM_DEBUG_PRINT(...) do { } while (0)
#define ATOM_SDEBUG_PRINT(...) do { } while (0)
#endif
static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
uint32_t index, uint32_t data)
{
struct radeon_device *rdev = ctx->card->dev->dev_private;
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:
if (rdev->family == CHIP_RV515)
(void)ctx->card->ioreg_read(ctx->card, CU16(base + 1));
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:
DRM_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)
ATOM_DEBUG_PRINT("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:
DRM_INFO(
"PCI registers are not implemented.\n");
return 0;
case ATOM_IO_SYSIO:
DRM_INFO(
"SYSIO registers are not implemented.\n");
return 0;
default:
if (!(gctx->io_mode & 0x80)) {
DRM_INFO("Bad IO mode.\n");
return 0;
}
if (!gctx->iio[gctx->io_mode & 0x7F]) {
DRM_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)
ATOM_DEBUG_PRINT("PS[0x%02X,0x%04X]", idx, val);
break;
case ATOM_ARG_WS:
idx = U8(*ptr);
(*ptr)++;
if (print)
ATOM_DEBUG_PRINT("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)
ATOM_DEBUG_PRINT("ID[0x%04X+%04X]", idx, gctx->data_block);
else
ATOM_DEBUG_PRINT("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)
ATOM_DEBUG_PRINT("FB[0x%02X]", idx);
break;
case ATOM_ARG_IMM:
switch (align) {
case ATOM_SRC_DWORD:
val = U32(*ptr);
(*ptr) += 4;
if (print)
ATOM_DEBUG_PRINT("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)
ATOM_DEBUG_PRINT("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)
ATOM_DEBUG_PRINT("IMM 0x%02X\n", val);
return val;
}
return 0;
case ATOM_ARG_PLL:
idx = U8(*ptr);
(*ptr)++;
if (print)
ATOM_DEBUG_PRINT("PLL[0x%02X]", idx);
val = gctx->card->pll_read(gctx->card, idx);
break;
case ATOM_ARG_MC:
idx = U8(*ptr);
(*ptr)++;
if (print)
ATOM_DEBUG_PRINT("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:
ATOM_DEBUG_PRINT(".[31:0] -> 0x%08X\n", val);
break;
case ATOM_SRC_WORD0:
ATOM_DEBUG_PRINT(".[15:0] -> 0x%04X\n", val);
break;
case ATOM_SRC_WORD8:
ATOM_DEBUG_PRINT(".[23:8] -> 0x%04X\n", val);
break;
case ATOM_SRC_WORD16:
ATOM_DEBUG_PRINT(".[31:16] -> 0x%04X\n", val);
break;
case ATOM_SRC_BYTE0:
ATOM_DEBUG_PRINT(".[7:0] -> 0x%02X\n", val);
break;
case ATOM_SRC_BYTE8:
ATOM_DEBUG_PRINT(".[15:8] -> 0x%02X\n", val);
break;
case ATOM_SRC_BYTE16:
ATOM_DEBUG_PRINT(".[23:16] -> 0x%02X\n", val);
break;
case ATOM_SRC_BYTE24:
ATOM_DEBUG_PRINT(".[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;
ATOM_DEBUG_PRINT("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:
DRM_INFO(
"PCI registers are not implemented.\n");
return;
case ATOM_IO_SYSIO:
DRM_INFO(
"SYSIO registers are not implemented.\n");
return;
default:
if (!(gctx->io_mode & 0x80)) {
DRM_INFO("Bad IO mode.\n");
return;
}
if (!gctx->iio[gctx->io_mode & 0xFF]) {
DRM_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)++;
ATOM_DEBUG_PRINT("PS[0x%02X]", idx);
ctx->ps[idx] = cpu_to_le32(val);
break;
case ATOM_ARG_WS:
idx = U8(*ptr);
(*ptr)++;
ATOM_DEBUG_PRINT("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;
ATOM_DEBUG_PRINT("FB[0x%02X]", idx);
break;
case ATOM_ARG_PLL:
idx = U8(*ptr);
(*ptr)++;
ATOM_DEBUG_PRINT("PLL[0x%02X]", idx);
gctx->card->pll_write(gctx->card, idx, val);
break;
case ATOM_ARG_MC:
idx = U8(*ptr);
(*ptr)++;
ATOM_DEBUG_PRINT("MC[0x%02X]", idx);
gctx->card->mc_write(gctx->card, idx, val);
return;
}
switch (align) {
case ATOM_SRC_DWORD:
ATOM_DEBUG_PRINT(".[31:0] <- 0x%08X\n", old_val);
break;
case ATOM_SRC_WORD0:
ATOM_DEBUG_PRINT(".[15:0] <- 0x%04X\n", old_val);
break;
case ATOM_SRC_WORD8:
ATOM_DEBUG_PRINT(".[23:8] <- 0x%04X\n", old_val);
break;
case ATOM_SRC_WORD16:
ATOM_DEBUG_PRINT(".[31:16] <- 0x%04X\n", old_val);
break;
case ATOM_SRC_BYTE0:
ATOM_DEBUG_PRINT(".[7:0] <- 0x%02X\n", old_val);
break;
case ATOM_SRC_BYTE8:
ATOM_DEBUG_PRINT(".[15:8] <- 0x%02X\n", old_val);
break;
case ATOM_SRC_BYTE16:
ATOM_DEBUG_PRINT(".[23:16] <- 0x%02X\n", old_val);
break;
case ATOM_SRC_BYTE24:
ATOM_DEBUG_PRINT(".[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;
ATOM_SDEBUG_PRINT(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
ATOM_SDEBUG_PRINT(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst += src;
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
ATOM_SDEBUG_PRINT(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst &= src;
ATOM_SDEBUG_PRINT(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
{
DRM_INFO("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)
ATOM_SDEBUG_PRINT(" table: %d (%s)\n", idx, atom_table_names[idx]);
else
ATOM_SDEBUG_PRINT(" table: %d\n", idx);
if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
r = 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);
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
ATOM_SDEBUG_PRINT(" src2: ");
src = atom_get_src(ctx, attr, ptr);
ctx->ctx->cs_equal = (dst == src);
ctx->ctx->cs_above = (dst > src);
ATOM_SDEBUG_PRINT(" 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)++);
ATOM_SDEBUG_PRINT(" count: %d\n", count);
if (arg == ATOM_UNIT_MICROSEC)
udelay(count);
else if (!drm_can_sleep())
mdelay(count);
else
DRM_MSLEEP(count);
}
static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
{
uint8_t attr = U8((*ptr)++);
uint32_t dst, src;
ATOM_SDEBUG_PRINT(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
ATOM_SDEBUG_PRINT(" 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_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)
ATOM_SDEBUG_PRINT(" taken: %s\n", execute ? "yes" : "no");
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
ATOM_SDEBUG_PRINT(" mask: 0x%08x", mask);
ATOM_SDEBUG_PRINT(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst &= mask;
dst |= src;
ATOM_SDEBUG_PRINT(" 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;
}
ATOM_SDEBUG_PRINT(" src: ");
src = atom_get_src(ctx, attr, ptr);
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
ATOM_SDEBUG_PRINT(" src2: ");
src = atom_get_src(ctx, attr, ptr);
ctx->ctx->divmul[0] = dst * src;
}
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;
ATOM_SDEBUG_PRINT(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
ATOM_SDEBUG_PRINT(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst |= src;
ATOM_SDEBUG_PRINT(" 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)++);
ATOM_SDEBUG_PRINT("POST card output: 0x%02X\n", val);
}
static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
{
DRM_INFO("unimplemented!\n");
}
static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
{
DRM_INFO("unimplemented!\n");
}
static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
{
DRM_INFO("unimplemented!\n");
}
static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
{
int idx = U8(*ptr);
(*ptr)++;
ATOM_SDEBUG_PRINT(" 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);
ATOM_SDEBUG_PRINT(" 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)++);
ATOM_SDEBUG_PRINT(" 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)
ATOM_SDEBUG_PRINT(" port: %d (%s)\n", port, atom_io_names[port]);
else
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
ATOM_SDEBUG_PRINT(" shift: %d\n", shift);
dst <<= shift;
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
ATOM_SDEBUG_PRINT(" shift: %d\n", shift);
dst >>= shift;
ATOM_SDEBUG_PRINT(" 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];
ATOM_SDEBUG_PRINT(" 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);
ATOM_SDEBUG_PRINT(" shift: %d\n", shift);
dst <<= shift;
dst &= atom_arg_mask[dst_align];
dst >>= atom_arg_shift[dst_align];
ATOM_SDEBUG_PRINT(" 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];
ATOM_SDEBUG_PRINT(" 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);
ATOM_SDEBUG_PRINT(" shift: %d\n", shift);
dst >>= shift;
dst &= atom_arg_mask[dst_align];
dst >>= atom_arg_shift[dst_align];
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
ATOM_SDEBUG_PRINT(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst -= src;
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" switch: ");
src = atom_get_src(ctx, attr, ptr);
while (U16(*ptr) != ATOM_CASE_END)
if (U8(*ptr) == ATOM_CASE_MAGIC) {
(*ptr)++;
ATOM_SDEBUG_PRINT(" case: ");
val =
atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
ptr);
target = U16(*ptr);
if (val == src) {
ATOM_SDEBUG_PRINT(" target: %04X\n", target);
*ptr = ctx->start + target;
return;
}
(*ptr) += 2;
} else {
DRM_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;
ATOM_SDEBUG_PRINT(" src1: ");
dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
ATOM_SDEBUG_PRINT(" src2: ");
src = atom_get_src(ctx, attr, ptr);
ctx->ctx->cs_equal = ((dst & src) == 0);
ATOM_SDEBUG_PRINT(" 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;
ATOM_SDEBUG_PRINT(" dst: ");
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
ATOM_SDEBUG_PRINT(" src: ");
src = atom_get_src(ctx, attr, ptr);
dst ^= src;
ATOM_SDEBUG_PRINT(" dst: ");
atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
}
static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
{
DRM_INFO("unimplemented!\n");
}
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},};
static int 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;
ATOM_SDEBUG_PRINT(">> 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 = malloc(4 * ws, DRM_MEM_DRIVER, M_NOWAIT | M_ZERO);
else
ectx.ws = NULL;
debug_depth++;
while (1) {
op = CU8(ptr++);
if (op < ATOM_OP_NAMES_CNT)
ATOM_SDEBUG_PRINT("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
else
ATOM_SDEBUG_PRINT("[%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--;
ATOM_SDEBUG_PRINT("<<\n");
free:
if (ws)
free(ectx.ws, DRM_MEM_DRIVER);
return ret;
}
int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
{
int r;
sx_xlock(&ctx->mutex);
/* reset reg block */
ctx->reg_block = 0;
/* reset fb window */
ctx->fb_base = 0;
/* reset io mode */
ctx->io_mode = ATOM_IO_MM;
r = atom_execute_table_locked(ctx, index, params);
sx_xunlock(&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 = malloc(2 * 256, DRM_MEM_DRIVER, M_NOWAIT | M_ZERO);
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 *atom_parse(struct card_info *card, void *bios)
{
int base;
struct atom_context *ctx =
malloc(sizeof(struct atom_context), DRM_MEM_DRIVER, M_NOWAIT | M_ZERO);
char *str;
char name[512];
int i;
if (!ctx)
return NULL;
ctx->card = card;
ctx->bios = bios;
if (CU16(0) != ATOM_BIOS_MAGIC) {
DRM_INFO("Invalid BIOS magic.\n");
free(ctx, DRM_MEM_DRIVER);
return NULL;
}
if (strncmp
(CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
strlen(ATOM_ATI_MAGIC))) {
DRM_INFO("Invalid ATI magic.\n");
free(ctx, DRM_MEM_DRIVER);
return NULL;
}
base = CU16(ATOM_ROM_TABLE_PTR);
if (strncmp
(CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
strlen(ATOM_ROM_MAGIC))) {
DRM_INFO("Invalid ATOM magic.\n");
free(ctx, DRM_MEM_DRIVER);
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);
str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
while (*str && ((*str == '\n') || (*str == '\r')))
str++;
/* name string isn't always 0 terminated */
for (i = 0; i < 511; i++) {
name[i] = str[i];
if (name[i] < '.' || name[i] > 'z') {
name[i] = 0;
break;
}
}
DRM_INFO("ATOM BIOS: %s\n", name);
return ctx;
}
int atom_asic_init(struct atom_context *ctx)
{
struct radeon_device *rdev = ctx->card->dev->dev_private;
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 = atom_execute_table(ctx, ATOM_CMD_INIT, ps);
if (ret)
return ret;
memset(ps, 0, 64);
if (rdev->family < CHIP_R600) {
if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL))
atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps);
}
return ret;
}
void atom_destroy(struct atom_context *ctx)
{
if (ctx->iio)
free(ctx->iio, DRM_MEM_DRIVER);
free(ctx, DRM_MEM_DRIVER);
}
bool 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 *)((char *)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 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 *)((char *)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;
}
int atom_allocate_fb_scratch(struct atom_context *ctx)
{
int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
uint16_t data_offset;
int usage_bytes = 0;
struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)((char *)ctx->bios + data_offset);
DRM_DEBUG("atom firmware requested %08x %dkb\n",
le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
}
ctx->scratch_size_bytes = 0;
if (usage_bytes == 0)
usage_bytes = 20 * 1024;
/* allocate some scratch memory */
ctx->scratch = malloc(usage_bytes, DRM_MEM_DRIVER, M_NOWAIT | M_ZERO);
if (!ctx->scratch)
return -ENOMEM;
ctx->scratch_size_bytes = usage_bytes;
return 0;
}
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