LXR linux/drivers/gpu/drm/radeon/uvd_v4

   1/*
   2 * Copyright 2013 Advanced Micro Devices, Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 * Authors: Christian König <christian.koenig@amd.com>
  23 */
  24
  25#include <linux/firmware.h>
  26#include <drm/drmP.h>
  27#include "radeon.h"
  28#include "radeon_asic.h"
  29#include "cikd.h"
  30
  31/**
  32 * uvd_v4_2_resume - memory controller programming
  33 *
  34 * @rdev: radeon_device pointer
  35 *
  36 * Let the UVD memory controller know it's offsets
  37 */
  38int uvd_v4_2_resume(struct radeon_device *rdev)
  39{
  40        uint64_t addr;
  41        uint32_t size;
  42
  43        /* programm the VCPU memory controller bits 0-27 */
  44
  45        /* skip over the header of the new firmware format */
  46        if (rdev->uvd.fw_header_present)
  47                addr = (rdev->uvd.gpu_addr + 0x200) >> 3;
  48        else
  49                addr = rdev->uvd.gpu_addr >> 3;
  50
  51        size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 4) >> 3;
  52        WREG32(UVD_VCPU_CACHE_OFFSET0, addr);
  53        WREG32(UVD_VCPU_CACHE_SIZE0, size);
  54
  55        addr += size;
  56        size = RADEON_UVD_HEAP_SIZE >> 3;
  57        WREG32(UVD_VCPU_CACHE_OFFSET1, addr);
  58        WREG32(UVD_VCPU_CACHE_SIZE1, size);
  59
  60        addr += size;
  61        size = (RADEON_UVD_STACK_SIZE +
  62               (RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles)) >> 3;
  63        WREG32(UVD_VCPU_CACHE_OFFSET2, addr);
  64        WREG32(UVD_VCPU_CACHE_SIZE2, size);
  65
  66        /* bits 28-31 */
  67        addr = (rdev->uvd.gpu_addr >> 28) & 0xF;
  68        WREG32(UVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));
  69
  70        /* bits 32-39 */
  71        addr = (rdev->uvd.gpu_addr >> 32) & 0xFF;
  72        WREG32(UVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));
  73
  74        if (rdev->uvd.fw_header_present)
  75                WREG32(UVD_GP_SCRATCH4, rdev->uvd.max_handles);
  76
  77        return 0;
  78}
  79