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linuxdebug/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c

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null pointer error
2024-07-16 15:50:57 +02:00
/*
* Copyright 2013 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* Authors: Christian König <christian.koenig@amd.com>
*/
#include <linux/firmware.h>
#include <linux/module.h>
#include <drm/drm.h>
#include <drm/drm_drv.h>
#include "amdgpu.h"
#include "amdgpu_pm.h"
#include "amdgpu_vce.h"
#include "amdgpu_cs.h"
#include "cikd.h"
/* 1 second timeout */
#define VCE_IDLE_TIMEOUT msecs_to_jiffies(1000)
/* Firmware Names */
#ifdef CONFIG_DRM_AMDGPU_CIK
#define FIRMWARE_BONAIRE "amdgpu/bonaire_vce.bin"
#define FIRMWARE_KABINI "amdgpu/kabini_vce.bin"
#define FIRMWARE_KAVERI "amdgpu/kaveri_vce.bin"
#define FIRMWARE_HAWAII "amdgpu/hawaii_vce.bin"
#define FIRMWARE_MULLINS "amdgpu/mullins_vce.bin"
#endif
#define FIRMWARE_TONGA "amdgpu/tonga_vce.bin"
#define FIRMWARE_CARRIZO "amdgpu/carrizo_vce.bin"
#define FIRMWARE_FIJI "amdgpu/fiji_vce.bin"
#define FIRMWARE_STONEY "amdgpu/stoney_vce.bin"
#define FIRMWARE_POLARIS10 "amdgpu/polaris10_vce.bin"
#define FIRMWARE_POLARIS11 "amdgpu/polaris11_vce.bin"
#define FIRMWARE_POLARIS12 "amdgpu/polaris12_vce.bin"
#define FIRMWARE_VEGAM "amdgpu/vegam_vce.bin"
#define FIRMWARE_VEGA10 "amdgpu/vega10_vce.bin"
#define FIRMWARE_VEGA12 "amdgpu/vega12_vce.bin"
#define FIRMWARE_VEGA20 "amdgpu/vega20_vce.bin"
#ifdef CONFIG_DRM_AMDGPU_CIK
MODULE_FIRMWARE(FIRMWARE_BONAIRE);
MODULE_FIRMWARE(FIRMWARE_KABINI);
MODULE_FIRMWARE(FIRMWARE_KAVERI);
MODULE_FIRMWARE(FIRMWARE_HAWAII);
MODULE_FIRMWARE(FIRMWARE_MULLINS);
#endif
MODULE_FIRMWARE(FIRMWARE_TONGA);
MODULE_FIRMWARE(FIRMWARE_CARRIZO);
MODULE_FIRMWARE(FIRMWARE_FIJI);
MODULE_FIRMWARE(FIRMWARE_STONEY);
MODULE_FIRMWARE(FIRMWARE_POLARIS10);
MODULE_FIRMWARE(FIRMWARE_POLARIS11);
MODULE_FIRMWARE(FIRMWARE_POLARIS12);
MODULE_FIRMWARE(FIRMWARE_VEGAM);
MODULE_FIRMWARE(FIRMWARE_VEGA10);
MODULE_FIRMWARE(FIRMWARE_VEGA12);
MODULE_FIRMWARE(FIRMWARE_VEGA20);
static void amdgpu_vce_idle_work_handler(struct work_struct *work);
static int amdgpu_vce_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
struct dma_fence **fence);
static int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
bool direct, struct dma_fence **fence);
/**
* amdgpu_vce_sw_init - allocate memory, load vce firmware
*
* @adev: amdgpu_device pointer
* @size: size for the new BO
*
* First step to get VCE online, allocate memory and load the firmware
*/
int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size)
{
const char *fw_name;
const struct common_firmware_header *hdr;
unsigned ucode_version, version_major, version_minor, binary_id;
int i, r;
switch (adev->asic_type) {
#ifdef CONFIG_DRM_AMDGPU_CIK
case CHIP_BONAIRE:
fw_name = FIRMWARE_BONAIRE;
break;
case CHIP_KAVERI:
fw_name = FIRMWARE_KAVERI;
break;
case CHIP_KABINI:
fw_name = FIRMWARE_KABINI;
break;
case CHIP_HAWAII:
fw_name = FIRMWARE_HAWAII;
break;
case CHIP_MULLINS:
fw_name = FIRMWARE_MULLINS;
break;
#endif
case CHIP_TONGA:
fw_name = FIRMWARE_TONGA;
break;
case CHIP_CARRIZO:
fw_name = FIRMWARE_CARRIZO;
break;
case CHIP_FIJI:
fw_name = FIRMWARE_FIJI;
break;
case CHIP_STONEY:
fw_name = FIRMWARE_STONEY;
break;
case CHIP_POLARIS10:
fw_name = FIRMWARE_POLARIS10;
break;
case CHIP_POLARIS11:
fw_name = FIRMWARE_POLARIS11;
break;
case CHIP_POLARIS12:
fw_name = FIRMWARE_POLARIS12;
break;
case CHIP_VEGAM:
fw_name = FIRMWARE_VEGAM;
break;
case CHIP_VEGA10:
fw_name = FIRMWARE_VEGA10;
break;
case CHIP_VEGA12:
fw_name = FIRMWARE_VEGA12;
break;
case CHIP_VEGA20:
fw_name = FIRMWARE_VEGA20;
break;
default:
return -EINVAL;
}
r = request_firmware(&adev->vce.fw, fw_name, adev->dev);
if (r) {
dev_err(adev->dev, "amdgpu_vce: Can't load firmware \"%s\"\n",
fw_name);
return r;
}
r = amdgpu_ucode_validate(adev->vce.fw);
if (r) {
dev_err(adev->dev, "amdgpu_vce: Can't validate firmware \"%s\"\n",
fw_name);
release_firmware(adev->vce.fw);
adev->vce.fw = NULL;
return r;
}
hdr = (const struct common_firmware_header *)adev->vce.fw->data;
ucode_version = le32_to_cpu(hdr->ucode_version);
version_major = (ucode_version >> 20) & 0xfff;
version_minor = (ucode_version >> 8) & 0xfff;
binary_id = ucode_version & 0xff;
DRM_INFO("Found VCE firmware Version: %d.%d Binary ID: %d\n",
version_major, version_minor, binary_id);
adev->vce.fw_version = ((version_major << 24) | (version_minor << 16) |
(binary_id << 8));
r = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM, &adev->vce.vcpu_bo,
&adev->vce.gpu_addr, &adev->vce.cpu_addr);
if (r) {
dev_err(adev->dev, "(%d) failed to allocate VCE bo\n", r);
return r;
}
for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
atomic_set(&adev->vce.handles[i], 0);
adev->vce.filp[i] = NULL;
}
INIT_DELAYED_WORK(&adev->vce.idle_work, amdgpu_vce_idle_work_handler);
mutex_init(&adev->vce.idle_mutex);
return 0;
}
/**
* amdgpu_vce_sw_fini - free memory
*
* @adev: amdgpu_device pointer
*
* Last step on VCE teardown, free firmware memory
*/
int amdgpu_vce_sw_fini(struct amdgpu_device *adev)
{
unsigned i;
if (adev->vce.vcpu_bo == NULL)
return 0;
drm_sched_entity_destroy(&adev->vce.entity);
amdgpu_bo_free_kernel(&adev->vce.vcpu_bo, &adev->vce.gpu_addr,
(void **)&adev->vce.cpu_addr);
for (i = 0; i < adev->vce.num_rings; i++)
amdgpu_ring_fini(&adev->vce.ring[i]);
release_firmware(adev->vce.fw);
mutex_destroy(&adev->vce.idle_mutex);
return 0;
}
/**
* amdgpu_vce_entity_init - init entity
*
* @adev: amdgpu_device pointer
*
*/
int amdgpu_vce_entity_init(struct amdgpu_device *adev)
{
struct amdgpu_ring *ring;
struct drm_gpu_scheduler *sched;
int r;
ring = &adev->vce.ring[0];
sched = &ring->sched;
r = drm_sched_entity_init(&adev->vce.entity, DRM_SCHED_PRIORITY_NORMAL,
&sched, 1, NULL);
if (r != 0) {
DRM_ERROR("Failed setting up VCE run queue.\n");
return r;
}
return 0;
}
/**
* amdgpu_vce_suspend - unpin VCE fw memory
*
* @adev: amdgpu_device pointer
*
*/
int amdgpu_vce_suspend(struct amdgpu_device *adev)
{
int i;
cancel_delayed_work_sync(&adev->vce.idle_work);
if (adev->vce.vcpu_bo == NULL)
return 0;
for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
if (atomic_read(&adev->vce.handles[i]))
break;
if (i == AMDGPU_MAX_VCE_HANDLES)
return 0;
/* TODO: suspending running encoding sessions isn't supported */
return -EINVAL;
}
/**
* amdgpu_vce_resume - pin VCE fw memory
*
* @adev: amdgpu_device pointer
*
*/
int amdgpu_vce_resume(struct amdgpu_device *adev)
{
void *cpu_addr;
const struct common_firmware_header *hdr;
unsigned offset;
int r, idx;
if (adev->vce.vcpu_bo == NULL)
return -EINVAL;
r = amdgpu_bo_reserve(adev->vce.vcpu_bo, false);
if (r) {
dev_err(adev->dev, "(%d) failed to reserve VCE bo\n", r);
return r;
}
r = amdgpu_bo_kmap(adev->vce.vcpu_bo, &cpu_addr);
if (r) {
amdgpu_bo_unreserve(adev->vce.vcpu_bo);
dev_err(adev->dev, "(%d) VCE map failed\n", r);
return r;
}
hdr = (const struct common_firmware_header *)adev->vce.fw->data;
offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
if (drm_dev_enter(adev_to_drm(adev), &idx)) {
memcpy_toio(cpu_addr, adev->vce.fw->data + offset,
adev->vce.fw->size - offset);
drm_dev_exit(idx);
}
amdgpu_bo_kunmap(adev->vce.vcpu_bo);
amdgpu_bo_unreserve(adev->vce.vcpu_bo);
return 0;
}
/**
* amdgpu_vce_idle_work_handler - power off VCE
*
* @work: pointer to work structure
*
* power of VCE when it's not used any more
*/
static void amdgpu_vce_idle_work_handler(struct work_struct *work)
{
struct amdgpu_device *adev =
container_of(work, struct amdgpu_device, vce.idle_work.work);
unsigned i, count = 0;
for (i = 0; i < adev->vce.num_rings; i++)
count += amdgpu_fence_count_emitted(&adev->vce.ring[i]);
if (count == 0) {
if (adev->pm.dpm_enabled) {
amdgpu_dpm_enable_vce(adev, false);
} else {
amdgpu_asic_set_vce_clocks(adev, 0, 0);
amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
AMD_PG_STATE_GATE);
amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
AMD_CG_STATE_GATE);
}
} else {
schedule_delayed_work(&adev->vce.idle_work, VCE_IDLE_TIMEOUT);
}
}
/**
* amdgpu_vce_ring_begin_use - power up VCE
*
* @ring: amdgpu ring
*
* Make sure VCE is powerd up when we want to use it
*/
void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
bool set_clocks;
if (amdgpu_sriov_vf(adev))
return;
mutex_lock(&adev->vce.idle_mutex);
set_clocks = !cancel_delayed_work_sync(&adev->vce.idle_work);
if (set_clocks) {
if (adev->pm.dpm_enabled) {
amdgpu_dpm_enable_vce(adev, true);
} else {
amdgpu_asic_set_vce_clocks(adev, 53300, 40000);
amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
AMD_CG_STATE_UNGATE);
amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
AMD_PG_STATE_UNGATE);
}
}
mutex_unlock(&adev->vce.idle_mutex);
}
/**
* amdgpu_vce_ring_end_use - power VCE down
*
* @ring: amdgpu ring
*
* Schedule work to power VCE down again
*/
void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring)
{
if (!amdgpu_sriov_vf(ring->adev))
schedule_delayed_work(&ring->adev->vce.idle_work, VCE_IDLE_TIMEOUT);
}
/**
* amdgpu_vce_free_handles - free still open VCE handles
*
* @adev: amdgpu_device pointer
* @filp: drm file pointer
*
* Close all VCE handles still open by this file pointer
*/
void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
{
struct amdgpu_ring *ring = &adev->vce.ring[0];
int i, r;
for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
uint32_t handle = atomic_read(&adev->vce.handles[i]);
if (!handle || adev->vce.filp[i] != filp)
continue;
r = amdgpu_vce_get_destroy_msg(ring, handle, false, NULL);
if (r)
DRM_ERROR("Error destroying VCE handle (%d)!\n", r);
adev->vce.filp[i] = NULL;
atomic_set(&adev->vce.handles[i], 0);
}
}
/**
* amdgpu_vce_get_create_msg - generate a VCE create msg
*
* @ring: ring we should submit the msg to
* @handle: VCE session handle to use
* @fence: optional fence to return
*
* Open up a stream for HW test
*/
static int amdgpu_vce_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
struct dma_fence **fence)
{
const unsigned ib_size_dw = 1024;
struct amdgpu_job *job;
struct amdgpu_ib *ib;
struct amdgpu_ib ib_msg;
struct dma_fence *f = NULL;
uint64_t addr;
int i, r;
r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4,
AMDGPU_IB_POOL_DIRECT, &job);
if (r)
return r;
memset(&ib_msg, 0, sizeof(ib_msg));
/* only one gpu page is needed, alloc +1 page to make addr aligned. */
r = amdgpu_ib_get(ring->adev, NULL, AMDGPU_GPU_PAGE_SIZE * 2,
AMDGPU_IB_POOL_DIRECT,
&ib_msg);
if (r)
goto err;
ib = &job->ibs[0];
/* let addr point to page boundary */
addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg.gpu_addr);
/* stitch together an VCE create msg */
ib->length_dw = 0;
ib->ptr[ib->length_dw++] = 0x0000000c; /* len */
ib->ptr[ib->length_dw++] = 0x00000001; /* session cmd */
ib->ptr[ib->length_dw++] = handle;
if ((ring->adev->vce.fw_version >> 24) >= 52)
ib->ptr[ib->length_dw++] = 0x00000040; /* len */
else
ib->ptr[ib->length_dw++] = 0x00000030; /* len */
ib->ptr[ib->length_dw++] = 0x01000001; /* create cmd */
ib->ptr[ib->length_dw++] = 0x00000000;
ib->ptr[ib->length_dw++] = 0x00000042;
ib->ptr[ib->length_dw++] = 0x0000000a;
ib->ptr[ib->length_dw++] = 0x00000001;
ib->ptr[ib->length_dw++] = 0x00000080;
ib->ptr[ib->length_dw++] = 0x00000060;
ib->ptr[ib->length_dw++] = 0x00000100;
ib->ptr[ib->length_dw++] = 0x00000100;
ib->ptr[ib->length_dw++] = 0x0000000c;
ib->ptr[ib->length_dw++] = 0x00000000;
if ((ring->adev->vce.fw_version >> 24) >= 52) {
ib->ptr[ib->length_dw++] = 0x00000000;
ib->ptr[ib->length_dw++] = 0x00000000;
ib->ptr[ib->length_dw++] = 0x00000000;
ib->ptr[ib->length_dw++] = 0x00000000;
}
ib->ptr[ib->length_dw++] = 0x00000014; /* len */
ib->ptr[ib->length_dw++] = 0x05000005; /* feedback buffer */
ib->ptr[ib->length_dw++] = upper_32_bits(addr);
ib->ptr[ib->length_dw++] = addr;
ib->ptr[ib->length_dw++] = 0x00000001;
for (i = ib->length_dw; i < ib_size_dw; ++i)
ib->ptr[i] = 0x0;
r = amdgpu_job_submit_direct(job, ring, &f);
amdgpu_ib_free(ring->adev, &ib_msg, f);
if (r)
goto err;
if (fence)
*fence = dma_fence_get(f);
dma_fence_put(f);
return 0;
err:
amdgpu_job_free(job);
return r;
}
/**
* amdgpu_vce_get_destroy_msg - generate a VCE destroy msg
*
* @ring: ring we should submit the msg to
* @handle: VCE session handle to use
* @direct: direct or delayed pool
* @fence: optional fence to return
*
* Close up a stream for HW test or if userspace failed to do so
*/
static int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
bool direct, struct dma_fence **fence)
{
const unsigned ib_size_dw = 1024;
struct amdgpu_job *job;
struct amdgpu_ib *ib;
struct dma_fence *f = NULL;
int i, r;
r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4,
direct ? AMDGPU_IB_POOL_DIRECT :
AMDGPU_IB_POOL_DELAYED, &job);
if (r)
return r;
ib = &job->ibs[0];
/* stitch together an VCE destroy msg */
ib->length_dw = 0;
ib->ptr[ib->length_dw++] = 0x0000000c; /* len */
ib->ptr[ib->length_dw++] = 0x00000001; /* session cmd */
ib->ptr[ib->length_dw++] = handle;
ib->ptr[ib->length_dw++] = 0x00000020; /* len */
ib->ptr[ib->length_dw++] = 0x00000002; /* task info */
ib->ptr[ib->length_dw++] = 0xffffffff; /* next task info, set to 0xffffffff if no */
ib->ptr[ib->length_dw++] = 0x00000001; /* destroy session */
ib->ptr[ib->length_dw++] = 0x00000000;
ib->ptr[ib->length_dw++] = 0x00000000;
ib->ptr[ib->length_dw++] = 0xffffffff; /* feedback is not needed, set to 0xffffffff and firmware will not output feedback */
ib->ptr[ib->length_dw++] = 0x00000000;
ib->ptr[ib->length_dw++] = 0x00000008; /* len */
ib->ptr[ib->length_dw++] = 0x02000001; /* destroy cmd */
for (i = ib->length_dw; i < ib_size_dw; ++i)
ib->ptr[i] = 0x0;
if (direct)
r = amdgpu_job_submit_direct(job, ring, &f);
else
r = amdgpu_job_submit(job, &ring->adev->vce.entity,
AMDGPU_FENCE_OWNER_UNDEFINED, &f);
if (r)
goto err;
if (fence)
*fence = dma_fence_get(f);
dma_fence_put(f);
return 0;
err:
amdgpu_job_free(job);
return r;
}
/**
* amdgpu_vce_validate_bo - make sure not to cross 4GB boundary
*
* @ib: indirect buffer to use
* @lo: address of lower dword
* @hi: address of higher dword
* @size: minimum size
* @index: bs/fb index
*
* Make sure that no BO cross a 4GB boundary.
*/
static int amdgpu_vce_validate_bo(struct amdgpu_cs_parser *p,
struct amdgpu_ib *ib, int lo, int hi,
unsigned size, int32_t index)
{
int64_t offset = ((uint64_t)size) * ((int64_t)index);
struct ttm_operation_ctx ctx = { false, false };
struct amdgpu_bo_va_mapping *mapping;
unsigned i, fpfn, lpfn;
struct amdgpu_bo *bo;
uint64_t addr;
int r;
addr = ((uint64_t)amdgpu_ib_get_value(ib, lo)) |
((uint64_t)amdgpu_ib_get_value(ib, hi)) << 32;
if (index >= 0) {
addr += offset;
fpfn = PAGE_ALIGN(offset) >> PAGE_SHIFT;
lpfn = 0x100000000ULL >> PAGE_SHIFT;
} else {
fpfn = 0;
lpfn = (0x100000000ULL - PAGE_ALIGN(offset)) >> PAGE_SHIFT;
}
r = amdgpu_cs_find_mapping(p, addr, &bo, &mapping);
if (r) {
DRM_ERROR("Can't find BO for addr 0x%010Lx %d %d %d %d\n",
addr, lo, hi, size, index);
return r;
}
for (i = 0; i < bo->placement.num_placement; ++i) {
bo->placements[i].fpfn = max(bo->placements[i].fpfn, fpfn);
bo->placements[i].lpfn = bo->placements[i].lpfn ?
min(bo->placements[i].lpfn, lpfn) : lpfn;
}
return ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
}
/**
* amdgpu_vce_cs_reloc - command submission relocation
*
* @p: parser context
* @ib: indirect buffer to use
* @lo: address of lower dword
* @hi: address of higher dword
* @size: minimum size
* @index: bs/fb index
*
* Patch relocation inside command stream with real buffer address
*/
static int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, struct amdgpu_ib *ib,
int lo, int hi, unsigned size, uint32_t index)
{
struct amdgpu_bo_va_mapping *mapping;
struct amdgpu_bo *bo;
uint64_t addr;
int r;
if (index == 0xffffffff)
index = 0;
addr = ((uint64_t)amdgpu_ib_get_value(ib, lo)) |
((uint64_t)amdgpu_ib_get_value(ib, hi)) << 32;
addr += ((uint64_t)size) * ((uint64_t)index);
r = amdgpu_cs_find_mapping(p, addr, &bo, &mapping);
if (r) {
DRM_ERROR("Can't find BO for addr 0x%010Lx %d %d %d %d\n",
addr, lo, hi, size, index);
return r;
}
if ((addr + (uint64_t)size) >
(mapping->last + 1) * AMDGPU_GPU_PAGE_SIZE) {
DRM_ERROR("BO too small for addr 0x%010Lx %d %d\n",
addr, lo, hi);
return -EINVAL;
}
addr -= mapping->start * AMDGPU_GPU_PAGE_SIZE;
addr += amdgpu_bo_gpu_offset(bo);
addr -= ((uint64_t)size) * ((uint64_t)index);
amdgpu_ib_set_value(ib, lo, lower_32_bits(addr));
amdgpu_ib_set_value(ib, hi, upper_32_bits(addr));
return 0;
}
/**
* amdgpu_vce_validate_handle - validate stream handle
*
* @p: parser context
* @handle: handle to validate
* @allocated: allocated a new handle?
*
* Validates the handle and return the found session index or -EINVAL
* we we don't have another free session index.
*/
static int amdgpu_vce_validate_handle(struct amdgpu_cs_parser *p,
uint32_t handle, uint32_t *allocated)
{
unsigned i;
/* validate the handle */
for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
if (atomic_read(&p->adev->vce.handles[i]) == handle) {
if (p->adev->vce.filp[i] != p->filp) {
DRM_ERROR("VCE handle collision detected!\n");
return -EINVAL;
}
return i;
}
}
/* handle not found try to alloc a new one */
for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
if (!atomic_cmpxchg(&p->adev->vce.handles[i], 0, handle)) {
p->adev->vce.filp[i] = p->filp;
p->adev->vce.img_size[i] = 0;
*allocated |= 1 << i;
return i;
}
}
DRM_ERROR("No more free VCE handles!\n");
return -EINVAL;
}
/**
* amdgpu_vce_ring_parse_cs - parse and validate the command stream
*
* @p: parser context
* @job: the job to parse
* @ib: the IB to patch
*/
int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p,
struct amdgpu_job *job,
struct amdgpu_ib *ib)
{
unsigned fb_idx = 0, bs_idx = 0;
int session_idx = -1;
uint32_t destroyed = 0;
uint32_t created = 0;
uint32_t allocated = 0;
uint32_t tmp, handle = 0;
uint32_t *size = &tmp;
unsigned idx;
int i, r = 0;
job->vm = NULL;
ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
for (idx = 0; idx < ib->length_dw;) {
uint32_t len = amdgpu_ib_get_value(ib, idx);
uint32_t cmd = amdgpu_ib_get_value(ib, idx + 1);
if ((len < 8) || (len & 3)) {
DRM_ERROR("invalid VCE command length (%d)!\n", len);
r = -EINVAL;
goto out;
}
switch (cmd) {
case 0x00000002: /* task info */
fb_idx = amdgpu_ib_get_value(ib, idx + 6);
bs_idx = amdgpu_ib_get_value(ib, idx + 7);
break;
case 0x03000001: /* encode */
r = amdgpu_vce_validate_bo(p, ib, idx + 10, idx + 9,
0, 0);
if (r)
goto out;
r = amdgpu_vce_validate_bo(p, ib, idx + 12, idx + 11,
0, 0);
if (r)
goto out;
break;
case 0x05000001: /* context buffer */
r = amdgpu_vce_validate_bo(p, ib, idx + 3, idx + 2,
0, 0);
if (r)
goto out;
break;
case 0x05000004: /* video bitstream buffer */
tmp = amdgpu_ib_get_value(ib, idx + 4);
r = amdgpu_vce_validate_bo(p, ib, idx + 3, idx + 2,
tmp, bs_idx);
if (r)
goto out;
break;
case 0x05000005: /* feedback buffer */
r = amdgpu_vce_validate_bo(p, ib, idx + 3, idx + 2,
4096, fb_idx);
if (r)
goto out;
break;
case 0x0500000d: /* MV buffer */
r = amdgpu_vce_validate_bo(p, ib, idx + 3, idx + 2,
0, 0);
if (r)
goto out;
r = amdgpu_vce_validate_bo(p, ib, idx + 8, idx + 7,
0, 0);
if (r)
goto out;
break;
}
idx += len / 4;
}
for (idx = 0; idx < ib->length_dw;) {
uint32_t len = amdgpu_ib_get_value(ib, idx);
uint32_t cmd = amdgpu_ib_get_value(ib, idx + 1);
switch (cmd) {
case 0x00000001: /* session */
handle = amdgpu_ib_get_value(ib, idx + 2);
session_idx = amdgpu_vce_validate_handle(p, handle,
&allocated);
if (session_idx < 0) {
r = session_idx;
goto out;
}
size = &p->adev->vce.img_size[session_idx];
break;
case 0x00000002: /* task info */
fb_idx = amdgpu_ib_get_value(ib, idx + 6);
bs_idx = amdgpu_ib_get_value(ib, idx + 7);
break;
case 0x01000001: /* create */
created |= 1 << session_idx;
if (destroyed & (1 << session_idx)) {
destroyed &= ~(1 << session_idx);
allocated |= 1 << session_idx;
} else if (!(allocated & (1 << session_idx))) {
DRM_ERROR("Handle already in use!\n");
r = -EINVAL;
goto out;
}
*size = amdgpu_ib_get_value(ib, idx + 8) *
amdgpu_ib_get_value(ib, idx + 10) *
8 * 3 / 2;
break;
case 0x04000001: /* config extension */
case 0x04000002: /* pic control */
case 0x04000005: /* rate control */
case 0x04000007: /* motion estimation */
case 0x04000008: /* rdo */
case 0x04000009: /* vui */
case 0x05000002: /* auxiliary buffer */
case 0x05000009: /* clock table */
break;
case 0x0500000c: /* hw config */
switch (p->adev->asic_type) {
#ifdef CONFIG_DRM_AMDGPU_CIK
case CHIP_KAVERI:
case CHIP_MULLINS:
#endif
case CHIP_CARRIZO:
break;
default:
r = -EINVAL;
goto out;
}
break;
case 0x03000001: /* encode */
r = amdgpu_vce_cs_reloc(p, ib, idx + 10, idx + 9,
*size, 0);
if (r)
goto out;
r = amdgpu_vce_cs_reloc(p, ib, idx + 12, idx + 11,
*size / 3, 0);
if (r)
goto out;
break;
case 0x02000001: /* destroy */
destroyed |= 1 << session_idx;
break;
case 0x05000001: /* context buffer */
r = amdgpu_vce_cs_reloc(p, ib, idx + 3, idx + 2,
*size * 2, 0);
if (r)
goto out;
break;
case 0x05000004: /* video bitstream buffer */
tmp = amdgpu_ib_get_value(ib, idx + 4);
r = amdgpu_vce_cs_reloc(p, ib, idx + 3, idx + 2,
tmp, bs_idx);
if (r)
goto out;
break;
case 0x05000005: /* feedback buffer */
r = amdgpu_vce_cs_reloc(p, ib, idx + 3, idx + 2,
4096, fb_idx);
if (r)
goto out;
break;
case 0x0500000d: /* MV buffer */
r = amdgpu_vce_cs_reloc(p, ib, idx + 3,
idx + 2, *size, 0);
if (r)
goto out;
r = amdgpu_vce_cs_reloc(p, ib, idx + 8,
idx + 7, *size / 12, 0);
if (r)
goto out;
break;
default:
DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
r = -EINVAL;
goto out;
}
if (session_idx == -1) {
DRM_ERROR("no session command at start of IB\n");
r = -EINVAL;
goto out;
}
idx += len / 4;
}
if (allocated & ~created) {
DRM_ERROR("New session without create command!\n");
r = -ENOENT;
}
out:
if (!r) {
/* No error, free all destroyed handle slots */
tmp = destroyed;
} else {
/* Error during parsing, free all allocated handle slots */
tmp = allocated;
}
for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
if (tmp & (1 << i))
atomic_set(&p->adev->vce.handles[i], 0);
return r;
}
/**
* amdgpu_vce_ring_parse_cs_vm - parse the command stream in VM mode
*
* @p: parser context
* @job: the job to parse
* @ib: the IB to patch
*/
int amdgpu_vce_ring_parse_cs_vm(struct amdgpu_cs_parser *p,
struct amdgpu_job *job,
struct amdgpu_ib *ib)
{
int session_idx = -1;
uint32_t destroyed = 0;
uint32_t created = 0;
uint32_t allocated = 0;
uint32_t tmp, handle = 0;
int i, r = 0, idx = 0;
while (idx < ib->length_dw) {
uint32_t len = amdgpu_ib_get_value(ib, idx);
uint32_t cmd = amdgpu_ib_get_value(ib, idx + 1);
if ((len < 8) || (len & 3)) {
DRM_ERROR("invalid VCE command length (%d)!\n", len);
r = -EINVAL;
goto out;
}
switch (cmd) {
case 0x00000001: /* session */
handle = amdgpu_ib_get_value(ib, idx + 2);
session_idx = amdgpu_vce_validate_handle(p, handle,
&allocated);
if (session_idx < 0) {
r = session_idx;
goto out;
}
break;
case 0x01000001: /* create */
created |= 1 << session_idx;
if (destroyed & (1 << session_idx)) {
destroyed &= ~(1 << session_idx);
allocated |= 1 << session_idx;
} else if (!(allocated & (1 << session_idx))) {
DRM_ERROR("Handle already in use!\n");
r = -EINVAL;
goto out;
}
break;
case 0x02000001: /* destroy */
destroyed |= 1 << session_idx;
break;
default:
break;
}
if (session_idx == -1) {
DRM_ERROR("no session command at start of IB\n");
r = -EINVAL;
goto out;
}
idx += len / 4;
}
if (allocated & ~created) {
DRM_ERROR("New session without create command!\n");
r = -ENOENT;
}
out:
if (!r) {
/* No error, free all destroyed handle slots */
tmp = destroyed;
amdgpu_ib_free(p->adev, ib, NULL);
} else {
/* Error during parsing, free all allocated handle slots */
tmp = allocated;
}
for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
if (tmp & (1 << i))
atomic_set(&p->adev->vce.handles[i], 0);
return r;
}
/**
* amdgpu_vce_ring_emit_ib - execute indirect buffer
*
* @ring: engine to use
* @job: job to retrieve vmid from
* @ib: the IB to execute
* @flags: unused
*
*/
void amdgpu_vce_ring_emit_ib(struct amdgpu_ring *ring,
struct amdgpu_job *job,
struct amdgpu_ib *ib,
uint32_t flags)
{
amdgpu_ring_write(ring, VCE_CMD_IB);
amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
amdgpu_ring_write(ring, ib->length_dw);
}
/**
* amdgpu_vce_ring_emit_fence - add a fence command to the ring
*
* @ring: engine to use
* @addr: address
* @seq: sequence number
* @flags: fence related flags
*
*/
void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
unsigned flags)
{
WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
amdgpu_ring_write(ring, VCE_CMD_FENCE);
amdgpu_ring_write(ring, addr);
amdgpu_ring_write(ring, upper_32_bits(addr));
amdgpu_ring_write(ring, seq);
amdgpu_ring_write(ring, VCE_CMD_TRAP);
amdgpu_ring_write(ring, VCE_CMD_END);
}
/**
* amdgpu_vce_ring_test_ring - test if VCE ring is working
*
* @ring: the engine to test on
*
*/
int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
uint32_t rptr;
unsigned i;
int r, timeout = adev->usec_timeout;
/* skip ring test for sriov*/
if (amdgpu_sriov_vf(adev))
return 0;
r = amdgpu_ring_alloc(ring, 16);
if (r)
return r;
rptr = amdgpu_ring_get_rptr(ring);
amdgpu_ring_write(ring, VCE_CMD_END);
amdgpu_ring_commit(ring);
for (i = 0; i < timeout; i++) {
if (amdgpu_ring_get_rptr(ring) != rptr)
break;
udelay(1);
}
if (i >= timeout)
r = -ETIMEDOUT;
return r;
}
/**
* amdgpu_vce_ring_test_ib - test if VCE IBs are working
*
* @ring: the engine to test on
* @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
*
*/
int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring, long timeout)
{
struct dma_fence *fence = NULL;
long r;
/* skip vce ring1/2 ib test for now, since it's not reliable */
if (ring != &ring->adev->vce.ring[0])
return 0;
r = amdgpu_vce_get_create_msg(ring, 1, NULL);
if (r)
goto error;
r = amdgpu_vce_get_destroy_msg(ring, 1, true, &fence);
if (r)
goto error;
r = dma_fence_wait_timeout(fence, false, timeout);
if (r == 0)
r = -ETIMEDOUT;
else if (r > 0)
r = 0;
error:
dma_fence_put(fence);
return r;
}
enum amdgpu_ring_priority_level amdgpu_vce_get_ring_prio(int ring)
{
switch(ring) {
case 0:
return AMDGPU_RING_PRIO_0;
case 1:
return AMDGPU_RING_PRIO_1;
case 2:
return AMDGPU_RING_PRIO_2;
default:
return AMDGPU_RING_PRIO_0;
}
}