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1373 lines
33 KiB
1373 lines
33 KiB
/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Author: Stanislaw Skowronek
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*/
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#include <linux/module.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <asm/unaligned.h>
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#define ATOM_DEBUG
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#include "atom.h"
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#include "atom-names.h"
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#include "atom-bits.h"
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#define ATOM_COND_ABOVE 0
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#define ATOM_COND_ABOVEOREQUAL 1
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#define ATOM_COND_ALWAYS 2
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#define ATOM_COND_BELOW 3
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#define ATOM_COND_BELOWOREQUAL 4
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#define ATOM_COND_EQUAL 5
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#define ATOM_COND_NOTEQUAL 6
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#define ATOM_PORT_ATI 0
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#define ATOM_PORT_PCI 1
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#define ATOM_PORT_SYSIO 2
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#define ATOM_UNIT_MICROSEC 0
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#define ATOM_UNIT_MILLISEC 1
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#define PLL_INDEX 2
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#define PLL_DATA 3
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typedef struct {
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struct atom_context *ctx;
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uint32_t *ps, *ws;
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int ps_shift;
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uint16_t start;
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unsigned last_jump;
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unsigned long last_jump_jiffies;
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bool abort;
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} atom_exec_context;
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int atom_debug = 0;
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static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
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int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
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static uint32_t atom_arg_mask[8] =
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{ 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
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0xFF000000 };
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static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
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static int atom_dst_to_src[8][4] = {
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/* translate destination alignment field to the source alignment encoding */
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{0, 0, 0, 0},
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{1, 2, 3, 0},
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{1, 2, 3, 0},
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{1, 2, 3, 0},
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{4, 5, 6, 7},
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{4, 5, 6, 7},
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{4, 5, 6, 7},
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{4, 5, 6, 7},
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};
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static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
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static int debug_depth = 0;
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#ifdef ATOM_DEBUG
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static void debug_print_spaces(int n)
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{
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while (n--)
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printk(" ");
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}
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#define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
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#define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
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#else
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#define DEBUG(...) do { } while (0)
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#define SDEBUG(...) do { } while (0)
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#endif
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static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
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uint32_t index, uint32_t data)
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{
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uint32_t temp = 0xCDCDCDCD;
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while (1)
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switch (CU8(base)) {
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case ATOM_IIO_NOP:
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base++;
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break;
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case ATOM_IIO_READ:
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temp = ctx->card->reg_read(ctx->card, CU16(base + 1));
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base += 3;
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break;
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case ATOM_IIO_WRITE:
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(void)ctx->card->reg_read(ctx->card, CU16(base + 1));
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ctx->card->reg_write(ctx->card, CU16(base + 1), temp);
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base += 3;
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break;
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case ATOM_IIO_CLEAR:
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temp &=
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~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
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CU8(base + 2));
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base += 3;
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break;
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case ATOM_IIO_SET:
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temp |=
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(0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
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2);
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base += 3;
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break;
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case ATOM_IIO_MOVE_INDEX:
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temp &=
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~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
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CU8(base + 2));
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temp |=
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((index >> CU8(base + 2)) &
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(0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
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3);
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base += 4;
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break;
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case ATOM_IIO_MOVE_DATA:
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temp &=
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~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
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CU8(base + 2));
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temp |=
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((data >> CU8(base + 2)) &
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(0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
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3);
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base += 4;
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break;
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case ATOM_IIO_MOVE_ATTR:
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temp &=
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~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
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CU8(base + 2));
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temp |=
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((ctx->
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io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
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CU8
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(base
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+
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1))))
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<< CU8(base + 3);
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base += 4;
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break;
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case ATOM_IIO_END:
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return temp;
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default:
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printk(KERN_INFO "Unknown IIO opcode.\n");
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return 0;
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}
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}
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static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
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int *ptr, uint32_t *saved, int print)
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{
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uint32_t idx, val = 0xCDCDCDCD, align, arg;
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struct atom_context *gctx = ctx->ctx;
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arg = attr & 7;
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align = (attr >> 3) & 7;
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switch (arg) {
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case ATOM_ARG_REG:
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idx = U16(*ptr);
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(*ptr) += 2;
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if (print)
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DEBUG("REG[0x%04X]", idx);
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idx += gctx->reg_block;
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switch (gctx->io_mode) {
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case ATOM_IO_MM:
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val = gctx->card->reg_read(gctx->card, idx);
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break;
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case ATOM_IO_PCI:
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printk(KERN_INFO
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"PCI registers are not implemented.\n");
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return 0;
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case ATOM_IO_SYSIO:
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printk(KERN_INFO
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"SYSIO registers are not implemented.\n");
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return 0;
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default:
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if (!(gctx->io_mode & 0x80)) {
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printk(KERN_INFO "Bad IO mode.\n");
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return 0;
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}
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if (!gctx->iio[gctx->io_mode & 0x7F]) {
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printk(KERN_INFO
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"Undefined indirect IO read method %d.\n",
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gctx->io_mode & 0x7F);
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return 0;
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}
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val =
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atom_iio_execute(gctx,
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gctx->iio[gctx->io_mode & 0x7F],
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idx, 0);
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}
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break;
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case ATOM_ARG_PS:
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idx = U8(*ptr);
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(*ptr)++;
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/* get_unaligned_le32 avoids unaligned accesses from atombios
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* tables, noticed on a DEC Alpha. */
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val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
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if (print)
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DEBUG("PS[0x%02X,0x%04X]", idx, val);
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break;
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case ATOM_ARG_WS:
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idx = U8(*ptr);
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(*ptr)++;
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if (print)
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DEBUG("WS[0x%02X]", idx);
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switch (idx) {
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case ATOM_WS_QUOTIENT:
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val = gctx->divmul[0];
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break;
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case ATOM_WS_REMAINDER:
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val = gctx->divmul[1];
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break;
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case ATOM_WS_DATAPTR:
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val = gctx->data_block;
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break;
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case ATOM_WS_SHIFT:
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val = gctx->shift;
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break;
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case ATOM_WS_OR_MASK:
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val = 1 << gctx->shift;
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break;
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case ATOM_WS_AND_MASK:
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val = ~(1 << gctx->shift);
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break;
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case ATOM_WS_FB_WINDOW:
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val = gctx->fb_base;
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break;
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case ATOM_WS_ATTRIBUTES:
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val = gctx->io_attr;
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break;
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case ATOM_WS_REGPTR:
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val = gctx->reg_block;
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break;
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default:
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val = ctx->ws[idx];
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}
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break;
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case ATOM_ARG_ID:
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idx = U16(*ptr);
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(*ptr) += 2;
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if (print) {
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if (gctx->data_block)
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DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
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else
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DEBUG("ID[0x%04X]", idx);
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}
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val = U32(idx + gctx->data_block);
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break;
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case ATOM_ARG_FB:
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idx = U8(*ptr);
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(*ptr)++;
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val = gctx->scratch[((gctx->fb_base + idx) / 4)];
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if (print)
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DEBUG("FB[0x%02X]", idx);
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break;
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case ATOM_ARG_IMM:
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switch (align) {
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case ATOM_SRC_DWORD:
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val = U32(*ptr);
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(*ptr) += 4;
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if (print)
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DEBUG("IMM 0x%08X\n", val);
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return val;
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case ATOM_SRC_WORD0:
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case ATOM_SRC_WORD8:
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case ATOM_SRC_WORD16:
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val = U16(*ptr);
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(*ptr) += 2;
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if (print)
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DEBUG("IMM 0x%04X\n", val);
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return val;
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case ATOM_SRC_BYTE0:
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case ATOM_SRC_BYTE8:
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case ATOM_SRC_BYTE16:
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case ATOM_SRC_BYTE24:
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val = U8(*ptr);
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(*ptr)++;
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if (print)
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DEBUG("IMM 0x%02X\n", val);
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return val;
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}
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return 0;
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case ATOM_ARG_PLL:
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idx = U8(*ptr);
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(*ptr)++;
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if (print)
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DEBUG("PLL[0x%02X]", idx);
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val = gctx->card->pll_read(gctx->card, idx);
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break;
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case ATOM_ARG_MC:
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idx = U8(*ptr);
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(*ptr)++;
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if (print)
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DEBUG("MC[0x%02X]", idx);
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val = gctx->card->mc_read(gctx->card, idx);
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break;
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}
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if (saved)
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*saved = val;
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val &= atom_arg_mask[align];
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val >>= atom_arg_shift[align];
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if (print)
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switch (align) {
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case ATOM_SRC_DWORD:
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DEBUG(".[31:0] -> 0x%08X\n", val);
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break;
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case ATOM_SRC_WORD0:
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DEBUG(".[15:0] -> 0x%04X\n", val);
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break;
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case ATOM_SRC_WORD8:
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DEBUG(".[23:8] -> 0x%04X\n", val);
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break;
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case ATOM_SRC_WORD16:
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DEBUG(".[31:16] -> 0x%04X\n", val);
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break;
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case ATOM_SRC_BYTE0:
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DEBUG(".[7:0] -> 0x%02X\n", val);
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break;
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case ATOM_SRC_BYTE8:
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DEBUG(".[15:8] -> 0x%02X\n", val);
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break;
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case ATOM_SRC_BYTE16:
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DEBUG(".[23:16] -> 0x%02X\n", val);
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break;
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case ATOM_SRC_BYTE24:
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DEBUG(".[31:24] -> 0x%02X\n", val);
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break;
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}
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return val;
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}
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static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
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{
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uint32_t align = (attr >> 3) & 7, arg = attr & 7;
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switch (arg) {
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case ATOM_ARG_REG:
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case ATOM_ARG_ID:
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(*ptr) += 2;
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break;
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case ATOM_ARG_PLL:
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case ATOM_ARG_MC:
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case ATOM_ARG_PS:
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case ATOM_ARG_WS:
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case ATOM_ARG_FB:
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(*ptr)++;
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break;
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case ATOM_ARG_IMM:
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switch (align) {
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case ATOM_SRC_DWORD:
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(*ptr) += 4;
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return;
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case ATOM_SRC_WORD0:
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case ATOM_SRC_WORD8:
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case ATOM_SRC_WORD16:
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(*ptr) += 2;
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return;
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case ATOM_SRC_BYTE0:
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case ATOM_SRC_BYTE8:
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case ATOM_SRC_BYTE16:
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case ATOM_SRC_BYTE24:
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(*ptr)++;
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return;
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}
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return;
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}
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}
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static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
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{
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return atom_get_src_int(ctx, attr, ptr, NULL, 1);
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}
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static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
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{
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uint32_t val = 0xCDCDCDCD;
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switch (align) {
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case ATOM_SRC_DWORD:
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val = U32(*ptr);
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(*ptr) += 4;
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break;
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case ATOM_SRC_WORD0:
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case ATOM_SRC_WORD8:
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case ATOM_SRC_WORD16:
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val = U16(*ptr);
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(*ptr) += 2;
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break;
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case ATOM_SRC_BYTE0:
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case ATOM_SRC_BYTE8:
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case ATOM_SRC_BYTE16:
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case ATOM_SRC_BYTE24:
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val = U8(*ptr);
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(*ptr)++;
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break;
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}
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return val;
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}
|
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|
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static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
|
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int *ptr, uint32_t *saved, int print)
|
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{
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return atom_get_src_int(ctx,
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arg | atom_dst_to_src[(attr >> 3) &
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7][(attr >> 6) & 3] << 3,
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ptr, saved, print);
|
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}
|
|
|
|
static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
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{
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atom_skip_src_int(ctx,
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arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
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3] << 3, ptr);
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}
|
|
|
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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 =
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val, idx;
|
|
struct atom_context *gctx = ctx->ctx;
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old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
|
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val <<= atom_arg_shift[align];
|
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val &= atom_arg_mask[align];
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saved &= ~atom_arg_mask[align];
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val |= saved;
|
|
switch (arg) {
|
|
case ATOM_ARG_REG:
|
|
idx = U16(*ptr);
|
|
(*ptr) += 2;
|
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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:
|
|
printk(KERN_INFO
|
|
"PCI registers are not implemented.\n");
|
|
return;
|
|
case ATOM_IO_SYSIO:
|
|
printk(KERN_INFO
|
|
"SYSIO registers are not implemented.\n");
|
|
return;
|
|
default:
|
|
if (!(gctx->io_mode & 0x80)) {
|
|
printk(KERN_INFO "Bad IO mode.\n");
|
|
return;
|
|
}
|
|
if (!gctx->iio[gctx->io_mode & 0xFF]) {
|
|
printk(KERN_INFO
|
|
"Undefined indirect IO write method %d.\n",
|
|
gctx->io_mode & 0x7F);
|
|
return;
|
|
}
|
|
atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
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|
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)++;
|
|
gctx->scratch[((gctx->fb_base + idx) / 4)] = 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 = 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)
|
|
{
|
|
uint8_t count = U8((*ptr)++);
|
|
SDEBUG(" count: %d\n", count);
|
|
if (arg == ATOM_UNIT_MICROSEC)
|
|
udelay(count);
|
|
else
|
|
schedule_timeout_uninterruptible(msecs_to_jiffies(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_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) > 1000)) {
|
|
DRM_ERROR("atombios stuck in loop for more than 1sec 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, src1, src2, saved;
|
|
int dptr = *ptr;
|
|
SDEBUG(" dst: ");
|
|
dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
|
|
SDEBUG(" src1: ");
|
|
src1 = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
|
|
SDEBUG(" src2: ");
|
|
src2 = atom_get_src(ctx, attr, ptr);
|
|
dst &= src1;
|
|
dst |= src2;
|
|
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_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)
|
|
{
|
|
printk(KERN_INFO "unimplemented!\n");
|
|
}
|
|
|
|
static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
|
|
{
|
|
printk(KERN_INFO "unimplemented!\n");
|
|
}
|
|
|
|
static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
|
|
{
|
|
printk(KERN_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 {
|
|
printk(KERN_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)
|
|
{
|
|
printk(KERN_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;
|
|
|
|
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 atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
|
|
{
|
|
int r;
|
|
|
|
mutex_lock(&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);
|
|
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);
|
|
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 =
|
|
kzalloc(sizeof(struct atom_context), GFP_KERNEL);
|
|
char *str;
|
|
char name[512];
|
|
int i;
|
|
|
|
ctx->card = card;
|
|
ctx->bios = bios;
|
|
|
|
if (CU16(0) != ATOM_BIOS_MAGIC) {
|
|
printk(KERN_INFO "Invalid BIOS magic.\n");
|
|
kfree(ctx);
|
|
return NULL;
|
|
}
|
|
if (strncmp
|
|
(CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
|
|
strlen(ATOM_ATI_MAGIC))) {
|
|
printk(KERN_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))) {
|
|
printk(KERN_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);
|
|
|
|
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;
|
|
}
|
|
}
|
|
printk(KERN_INFO "ATOM BIOS: %s\n", name);
|
|
|
|
return ctx;
|
|
}
|
|
|
|
int atom_asic_init(struct atom_context *ctx)
|
|
{
|
|
int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
|
|
uint32_t ps[16];
|
|
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;
|
|
return atom_execute_table(ctx, ATOM_CMD_INIT, ps);
|
|
}
|
|
|
|
void atom_destroy(struct atom_context *ctx)
|
|
{
|
|
if (ctx->iio)
|
|
kfree(ctx->iio);
|
|
kfree(ctx);
|
|
}
|
|
|
|
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 *)(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 *)(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 *)(ctx->bios + data_offset);
|
|
|
|
DRM_DEBUG("atom firmware requested %08x %dkb\n",
|
|
firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
|
|
firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
|
|
|
|
usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
|
|
}
|
|
if (usage_bytes == 0)
|
|
usage_bytes = 20 * 1024;
|
|
/* allocate some scratch memory */
|
|
ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
|
|
if (!ctx->scratch)
|
|
return -ENOMEM;
|
|
return 0;
|
|
}
|
|
|