From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/gpu/drm/radeon/radeon_uvd.c | 1003 ++++++++++++++++++++++++++++ 1 file changed, 1003 insertions(+) create mode 100644 kernel/drivers/gpu/drm/radeon/radeon_uvd.c (limited to 'kernel/drivers/gpu/drm/radeon/radeon_uvd.c') diff --git a/kernel/drivers/gpu/drm/radeon/radeon_uvd.c b/kernel/drivers/gpu/drm/radeon/radeon_uvd.c new file mode 100644 index 000000000..6edcb5485 --- /dev/null +++ b/kernel/drivers/gpu/drm/radeon/radeon_uvd.c @@ -0,0 +1,1003 @@ +/* + * Copyright 2011 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 + */ + +#include +#include +#include +#include + +#include "radeon.h" +#include "r600d.h" + +/* 1 second timeout */ +#define UVD_IDLE_TIMEOUT_MS 1000 + +/* Firmware Names */ +#define FIRMWARE_R600 "radeon/R600_uvd.bin" +#define FIRMWARE_RS780 "radeon/RS780_uvd.bin" +#define FIRMWARE_RV770 "radeon/RV770_uvd.bin" +#define FIRMWARE_RV710 "radeon/RV710_uvd.bin" +#define FIRMWARE_CYPRESS "radeon/CYPRESS_uvd.bin" +#define FIRMWARE_SUMO "radeon/SUMO_uvd.bin" +#define FIRMWARE_TAHITI "radeon/TAHITI_uvd.bin" +#define FIRMWARE_BONAIRE "radeon/BONAIRE_uvd.bin" + +MODULE_FIRMWARE(FIRMWARE_R600); +MODULE_FIRMWARE(FIRMWARE_RS780); +MODULE_FIRMWARE(FIRMWARE_RV770); +MODULE_FIRMWARE(FIRMWARE_RV710); +MODULE_FIRMWARE(FIRMWARE_CYPRESS); +MODULE_FIRMWARE(FIRMWARE_SUMO); +MODULE_FIRMWARE(FIRMWARE_TAHITI); +MODULE_FIRMWARE(FIRMWARE_BONAIRE); + +static void radeon_uvd_idle_work_handler(struct work_struct *work); + +int radeon_uvd_init(struct radeon_device *rdev) +{ + unsigned long bo_size; + const char *fw_name; + int i, r; + + INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler); + + switch (rdev->family) { + case CHIP_RV610: + case CHIP_RV630: + case CHIP_RV670: + case CHIP_RV620: + case CHIP_RV635: + fw_name = FIRMWARE_R600; + break; + + case CHIP_RS780: + case CHIP_RS880: + fw_name = FIRMWARE_RS780; + break; + + case CHIP_RV770: + fw_name = FIRMWARE_RV770; + break; + + case CHIP_RV710: + case CHIP_RV730: + case CHIP_RV740: + fw_name = FIRMWARE_RV710; + break; + + case CHIP_CYPRESS: + case CHIP_HEMLOCK: + case CHIP_JUNIPER: + case CHIP_REDWOOD: + case CHIP_CEDAR: + fw_name = FIRMWARE_CYPRESS; + break; + + case CHIP_SUMO: + case CHIP_SUMO2: + case CHIP_PALM: + case CHIP_CAYMAN: + case CHIP_BARTS: + case CHIP_TURKS: + case CHIP_CAICOS: + fw_name = FIRMWARE_SUMO; + break; + + case CHIP_TAHITI: + case CHIP_VERDE: + case CHIP_PITCAIRN: + case CHIP_ARUBA: + case CHIP_OLAND: + fw_name = FIRMWARE_TAHITI; + break; + + case CHIP_BONAIRE: + case CHIP_KABINI: + case CHIP_KAVERI: + case CHIP_HAWAII: + case CHIP_MULLINS: + fw_name = FIRMWARE_BONAIRE; + break; + + default: + return -EINVAL; + } + + r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev); + if (r) { + dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n", + fw_name); + return r; + } + + bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) + + RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE + + RADEON_GPU_PAGE_SIZE; + r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true, + RADEON_GEM_DOMAIN_VRAM, 0, NULL, + NULL, &rdev->uvd.vcpu_bo); + if (r) { + dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r); + return r; + } + + r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false); + if (r) { + radeon_bo_unref(&rdev->uvd.vcpu_bo); + dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r); + return r; + } + + r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM, + &rdev->uvd.gpu_addr); + if (r) { + radeon_bo_unreserve(rdev->uvd.vcpu_bo); + radeon_bo_unref(&rdev->uvd.vcpu_bo); + dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r); + return r; + } + + r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr); + if (r) { + dev_err(rdev->dev, "(%d) UVD map failed\n", r); + return r; + } + + radeon_bo_unreserve(rdev->uvd.vcpu_bo); + + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + atomic_set(&rdev->uvd.handles[i], 0); + rdev->uvd.filp[i] = NULL; + rdev->uvd.img_size[i] = 0; + } + + return 0; +} + +void radeon_uvd_fini(struct radeon_device *rdev) +{ + int r; + + if (rdev->uvd.vcpu_bo == NULL) + return; + + r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false); + if (!r) { + radeon_bo_kunmap(rdev->uvd.vcpu_bo); + radeon_bo_unpin(rdev->uvd.vcpu_bo); + radeon_bo_unreserve(rdev->uvd.vcpu_bo); + } + + radeon_bo_unref(&rdev->uvd.vcpu_bo); + + radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]); + + release_firmware(rdev->uvd_fw); +} + +int radeon_uvd_suspend(struct radeon_device *rdev) +{ + int i, r; + + if (rdev->uvd.vcpu_bo == NULL) + return 0; + + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + uint32_t handle = atomic_read(&rdev->uvd.handles[i]); + if (handle != 0) { + struct radeon_fence *fence; + + radeon_uvd_note_usage(rdev); + + r = radeon_uvd_get_destroy_msg(rdev, + R600_RING_TYPE_UVD_INDEX, handle, &fence); + if (r) { + DRM_ERROR("Error destroying UVD (%d)!\n", r); + continue; + } + + radeon_fence_wait(fence, false); + radeon_fence_unref(&fence); + + rdev->uvd.filp[i] = NULL; + atomic_set(&rdev->uvd.handles[i], 0); + } + } + + return 0; +} + +int radeon_uvd_resume(struct radeon_device *rdev) +{ + unsigned size; + void *ptr; + + if (rdev->uvd.vcpu_bo == NULL) + return -EINVAL; + + memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size); + + size = radeon_bo_size(rdev->uvd.vcpu_bo); + size -= rdev->uvd_fw->size; + + ptr = rdev->uvd.cpu_addr; + ptr += rdev->uvd_fw->size; + + memset(ptr, 0, size); + + return 0; +} + +void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo, + uint32_t allowed_domains) +{ + int i; + + for (i = 0; i < rbo->placement.num_placement; ++i) { + rbo->placements[i].fpfn = 0 >> PAGE_SHIFT; + rbo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT; + } + + /* If it must be in VRAM it must be in the first segment as well */ + if (allowed_domains == RADEON_GEM_DOMAIN_VRAM) + return; + + /* abort if we already have more than one placement */ + if (rbo->placement.num_placement > 1) + return; + + /* add another 256MB segment */ + rbo->placements[1] = rbo->placements[0]; + rbo->placements[1].fpfn += (256 * 1024 * 1024) >> PAGE_SHIFT; + rbo->placements[1].lpfn += (256 * 1024 * 1024) >> PAGE_SHIFT; + rbo->placement.num_placement++; + rbo->placement.num_busy_placement++; +} + +void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp) +{ + int i, r; + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + uint32_t handle = atomic_read(&rdev->uvd.handles[i]); + if (handle != 0 && rdev->uvd.filp[i] == filp) { + struct radeon_fence *fence; + + radeon_uvd_note_usage(rdev); + + r = radeon_uvd_get_destroy_msg(rdev, + R600_RING_TYPE_UVD_INDEX, handle, &fence); + if (r) { + DRM_ERROR("Error destroying UVD (%d)!\n", r); + continue; + } + + radeon_fence_wait(fence, false); + radeon_fence_unref(&fence); + + rdev->uvd.filp[i] = NULL; + atomic_set(&rdev->uvd.handles[i], 0); + } + } +} + +static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[]) +{ + unsigned stream_type = msg[4]; + unsigned width = msg[6]; + unsigned height = msg[7]; + unsigned dpb_size = msg[9]; + unsigned pitch = msg[28]; + + unsigned width_in_mb = width / 16; + unsigned height_in_mb = ALIGN(height / 16, 2); + + unsigned image_size, tmp, min_dpb_size; + + image_size = width * height; + image_size += image_size / 2; + image_size = ALIGN(image_size, 1024); + + switch (stream_type) { + case 0: /* H264 */ + + /* reference picture buffer */ + min_dpb_size = image_size * 17; + + /* macroblock context buffer */ + min_dpb_size += width_in_mb * height_in_mb * 17 * 192; + + /* IT surface buffer */ + min_dpb_size += width_in_mb * height_in_mb * 32; + break; + + case 1: /* VC1 */ + + /* reference picture buffer */ + min_dpb_size = image_size * 3; + + /* CONTEXT_BUFFER */ + min_dpb_size += width_in_mb * height_in_mb * 128; + + /* IT surface buffer */ + min_dpb_size += width_in_mb * 64; + + /* DB surface buffer */ + min_dpb_size += width_in_mb * 128; + + /* BP */ + tmp = max(width_in_mb, height_in_mb); + min_dpb_size += ALIGN(tmp * 7 * 16, 64); + break; + + case 3: /* MPEG2 */ + + /* reference picture buffer */ + min_dpb_size = image_size * 3; + break; + + case 4: /* MPEG4 */ + + /* reference picture buffer */ + min_dpb_size = image_size * 3; + + /* CM */ + min_dpb_size += width_in_mb * height_in_mb * 64; + + /* IT surface buffer */ + min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64); + break; + + default: + DRM_ERROR("UVD codec not handled %d!\n", stream_type); + return -EINVAL; + } + + if (width > pitch) { + DRM_ERROR("Invalid UVD decoding target pitch!\n"); + return -EINVAL; + } + + if (dpb_size < min_dpb_size) { + DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n", + dpb_size, min_dpb_size); + return -EINVAL; + } + + buf_sizes[0x1] = dpb_size; + buf_sizes[0x2] = image_size; + return 0; +} + +static int radeon_uvd_validate_codec(struct radeon_cs_parser *p, + unsigned stream_type) +{ + switch (stream_type) { + case 0: /* H264 */ + case 1: /* VC1 */ + /* always supported */ + return 0; + + case 3: /* MPEG2 */ + case 4: /* MPEG4 */ + /* only since UVD 3 */ + if (p->rdev->family >= CHIP_PALM) + return 0; + + /* fall through */ + default: + DRM_ERROR("UVD codec not supported by hardware %d!\n", + stream_type); + return -EINVAL; + } +} + +static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo, + unsigned offset, unsigned buf_sizes[]) +{ + int32_t *msg, msg_type, handle; + unsigned img_size = 0; + struct fence *f; + void *ptr; + + int i, r; + + if (offset & 0x3F) { + DRM_ERROR("UVD messages must be 64 byte aligned!\n"); + return -EINVAL; + } + + f = reservation_object_get_excl(bo->tbo.resv); + if (f) { + r = radeon_fence_wait((struct radeon_fence *)f, false); + if (r) { + DRM_ERROR("Failed waiting for UVD message (%d)!\n", r); + return r; + } + } + + r = radeon_bo_kmap(bo, &ptr); + if (r) { + DRM_ERROR("Failed mapping the UVD message (%d)!\n", r); + return r; + } + + msg = ptr + offset; + + msg_type = msg[1]; + handle = msg[2]; + + if (handle == 0) { + DRM_ERROR("Invalid UVD handle!\n"); + return -EINVAL; + } + + switch (msg_type) { + case 0: + /* it's a create msg, calc image size (width * height) */ + img_size = msg[7] * msg[8]; + + r = radeon_uvd_validate_codec(p, msg[4]); + radeon_bo_kunmap(bo); + if (r) + return r; + + /* try to alloc a new handle */ + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + if (atomic_read(&p->rdev->uvd.handles[i]) == handle) { + DRM_ERROR("Handle 0x%x already in use!\n", handle); + return -EINVAL; + } + + if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) { + p->rdev->uvd.filp[i] = p->filp; + p->rdev->uvd.img_size[i] = img_size; + return 0; + } + } + + DRM_ERROR("No more free UVD handles!\n"); + return -EINVAL; + + case 1: + /* it's a decode msg, validate codec and calc buffer sizes */ + r = radeon_uvd_validate_codec(p, msg[4]); + if (!r) + r = radeon_uvd_cs_msg_decode(msg, buf_sizes); + radeon_bo_kunmap(bo); + if (r) + return r; + + /* validate the handle */ + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + if (atomic_read(&p->rdev->uvd.handles[i]) == handle) { + if (p->rdev->uvd.filp[i] != p->filp) { + DRM_ERROR("UVD handle collision detected!\n"); + return -EINVAL; + } + return 0; + } + } + + DRM_ERROR("Invalid UVD handle 0x%x!\n", handle); + return -ENOENT; + + case 2: + /* it's a destroy msg, free the handle */ + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) + atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0); + radeon_bo_kunmap(bo); + return 0; + + default: + + DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type); + return -EINVAL; + } + + BUG(); + return -EINVAL; +} + +static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p, + int data0, int data1, + unsigned buf_sizes[], bool *has_msg_cmd) +{ + struct radeon_cs_chunk *relocs_chunk; + struct radeon_bo_list *reloc; + unsigned idx, cmd, offset; + uint64_t start, end; + int r; + + relocs_chunk = p->chunk_relocs; + offset = radeon_get_ib_value(p, data0); + idx = radeon_get_ib_value(p, data1); + if (idx >= relocs_chunk->length_dw) { + DRM_ERROR("Relocs at %d after relocations chunk end %d !\n", + idx, relocs_chunk->length_dw); + return -EINVAL; + } + + reloc = &p->relocs[(idx / 4)]; + start = reloc->gpu_offset; + end = start + radeon_bo_size(reloc->robj); + start += offset; + + p->ib.ptr[data0] = start & 0xFFFFFFFF; + p->ib.ptr[data1] = start >> 32; + + cmd = radeon_get_ib_value(p, p->idx) >> 1; + + if (cmd < 0x4) { + if (end <= start) { + DRM_ERROR("invalid reloc offset %X!\n", offset); + return -EINVAL; + } + if ((end - start) < buf_sizes[cmd]) { + DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd, + (unsigned)(end - start), buf_sizes[cmd]); + return -EINVAL; + } + + } else if (cmd != 0x100) { + DRM_ERROR("invalid UVD command %X!\n", cmd); + return -EINVAL; + } + + if ((start >> 28) != ((end - 1) >> 28)) { + DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n", + start, end); + return -EINVAL; + } + + /* TODO: is this still necessary on NI+ ? */ + if ((cmd == 0 || cmd == 0x3) && + (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) { + DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n", + start, end); + return -EINVAL; + } + + if (cmd == 0) { + if (*has_msg_cmd) { + DRM_ERROR("More than one message in a UVD-IB!\n"); + return -EINVAL; + } + *has_msg_cmd = true; + r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes); + if (r) + return r; + } else if (!*has_msg_cmd) { + DRM_ERROR("Message needed before other commands are send!\n"); + return -EINVAL; + } + + return 0; +} + +static int radeon_uvd_cs_reg(struct radeon_cs_parser *p, + struct radeon_cs_packet *pkt, + int *data0, int *data1, + unsigned buf_sizes[], + bool *has_msg_cmd) +{ + int i, r; + + p->idx++; + for (i = 0; i <= pkt->count; ++i) { + switch (pkt->reg + i*4) { + case UVD_GPCOM_VCPU_DATA0: + *data0 = p->idx; + break; + case UVD_GPCOM_VCPU_DATA1: + *data1 = p->idx; + break; + case UVD_GPCOM_VCPU_CMD: + r = radeon_uvd_cs_reloc(p, *data0, *data1, + buf_sizes, has_msg_cmd); + if (r) + return r; + break; + case UVD_ENGINE_CNTL: + break; + default: + DRM_ERROR("Invalid reg 0x%X!\n", + pkt->reg + i*4); + return -EINVAL; + } + p->idx++; + } + return 0; +} + +int radeon_uvd_cs_parse(struct radeon_cs_parser *p) +{ + struct radeon_cs_packet pkt; + int r, data0 = 0, data1 = 0; + + /* does the IB has a msg command */ + bool has_msg_cmd = false; + + /* minimum buffer sizes */ + unsigned buf_sizes[] = { + [0x00000000] = 2048, + [0x00000001] = 32 * 1024 * 1024, + [0x00000002] = 2048 * 1152 * 3, + [0x00000003] = 2048, + }; + + if (p->chunk_ib->length_dw % 16) { + DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n", + p->chunk_ib->length_dw); + return -EINVAL; + } + + if (p->chunk_relocs == NULL) { + DRM_ERROR("No relocation chunk !\n"); + return -EINVAL; + } + + + do { + r = radeon_cs_packet_parse(p, &pkt, p->idx); + if (r) + return r; + switch (pkt.type) { + case RADEON_PACKET_TYPE0: + r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1, + buf_sizes, &has_msg_cmd); + if (r) + return r; + break; + case RADEON_PACKET_TYPE2: + p->idx += pkt.count + 2; + break; + default: + DRM_ERROR("Unknown packet type %d !\n", pkt.type); + return -EINVAL; + } + } while (p->idx < p->chunk_ib->length_dw); + + if (!has_msg_cmd) { + DRM_ERROR("UVD-IBs need a msg command!\n"); + return -EINVAL; + } + + return 0; +} + +static int radeon_uvd_send_msg(struct radeon_device *rdev, + int ring, uint64_t addr, + struct radeon_fence **fence) +{ + struct radeon_ib ib; + int i, r; + + r = radeon_ib_get(rdev, ring, &ib, NULL, 64); + if (r) + return r; + + ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0); + ib.ptr[1] = addr; + ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0); + ib.ptr[3] = addr >> 32; + ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0); + ib.ptr[5] = 0; + for (i = 6; i < 16; ++i) + ib.ptr[i] = PACKET2(0); + ib.length_dw = 16; + + r = radeon_ib_schedule(rdev, &ib, NULL, false); + + if (fence) + *fence = radeon_fence_ref(ib.fence); + + radeon_ib_free(rdev, &ib); + return r; +} + +/* multiple fence commands without any stream commands in between can + crash the vcpu so just try to emmit a dummy create/destroy msg to + avoid this */ +int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring, + uint32_t handle, struct radeon_fence **fence) +{ + /* we use the last page of the vcpu bo for the UVD message */ + uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) - + RADEON_GPU_PAGE_SIZE; + + uint32_t *msg = rdev->uvd.cpu_addr + offs; + uint64_t addr = rdev->uvd.gpu_addr + offs; + + int r, i; + + r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true); + if (r) + return r; + + /* stitch together an UVD create msg */ + msg[0] = cpu_to_le32(0x00000de4); + msg[1] = cpu_to_le32(0x00000000); + msg[2] = cpu_to_le32(handle); + msg[3] = cpu_to_le32(0x00000000); + msg[4] = cpu_to_le32(0x00000000); + msg[5] = cpu_to_le32(0x00000000); + msg[6] = cpu_to_le32(0x00000000); + msg[7] = cpu_to_le32(0x00000780); + msg[8] = cpu_to_le32(0x00000440); + msg[9] = cpu_to_le32(0x00000000); + msg[10] = cpu_to_le32(0x01b37000); + for (i = 11; i < 1024; ++i) + msg[i] = cpu_to_le32(0x0); + + r = radeon_uvd_send_msg(rdev, ring, addr, fence); + radeon_bo_unreserve(rdev->uvd.vcpu_bo); + return r; +} + +int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring, + uint32_t handle, struct radeon_fence **fence) +{ + /* we use the last page of the vcpu bo for the UVD message */ + uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) - + RADEON_GPU_PAGE_SIZE; + + uint32_t *msg = rdev->uvd.cpu_addr + offs; + uint64_t addr = rdev->uvd.gpu_addr + offs; + + int r, i; + + r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true); + if (r) + return r; + + /* stitch together an UVD destroy msg */ + msg[0] = cpu_to_le32(0x00000de4); + msg[1] = cpu_to_le32(0x00000002); + msg[2] = cpu_to_le32(handle); + msg[3] = cpu_to_le32(0x00000000); + for (i = 4; i < 1024; ++i) + msg[i] = cpu_to_le32(0x0); + + r = radeon_uvd_send_msg(rdev, ring, addr, fence); + radeon_bo_unreserve(rdev->uvd.vcpu_bo); + return r; +} + +/** + * radeon_uvd_count_handles - count number of open streams + * + * @rdev: radeon_device pointer + * @sd: number of SD streams + * @hd: number of HD streams + * + * Count the number of open SD/HD streams as a hint for power mangement + */ +static void radeon_uvd_count_handles(struct radeon_device *rdev, + unsigned *sd, unsigned *hd) +{ + unsigned i; + + *sd = 0; + *hd = 0; + + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + if (!atomic_read(&rdev->uvd.handles[i])) + continue; + + if (rdev->uvd.img_size[i] >= 720*576) + ++(*hd); + else + ++(*sd); + } +} + +static void radeon_uvd_idle_work_handler(struct work_struct *work) +{ + struct radeon_device *rdev = + container_of(work, struct radeon_device, uvd.idle_work.work); + + if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) { + if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) { + radeon_uvd_count_handles(rdev, &rdev->pm.dpm.sd, + &rdev->pm.dpm.hd); + radeon_dpm_enable_uvd(rdev, false); + } else { + radeon_set_uvd_clocks(rdev, 0, 0); + } + } else { + schedule_delayed_work(&rdev->uvd.idle_work, + msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS)); + } +} + +void radeon_uvd_note_usage(struct radeon_device *rdev) +{ + bool streams_changed = false; + bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work); + set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work, + msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS)); + + if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) { + unsigned hd = 0, sd = 0; + radeon_uvd_count_handles(rdev, &sd, &hd); + if ((rdev->pm.dpm.sd != sd) || + (rdev->pm.dpm.hd != hd)) { + rdev->pm.dpm.sd = sd; + rdev->pm.dpm.hd = hd; + /* disable this for now */ + /*streams_changed = true;*/ + } + } + + if (set_clocks || streams_changed) { + if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) { + radeon_dpm_enable_uvd(rdev, true); + } else { + radeon_set_uvd_clocks(rdev, 53300, 40000); + } + } +} + +static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq, + unsigned target_freq, + unsigned pd_min, + unsigned pd_even) +{ + unsigned post_div = vco_freq / target_freq; + + /* adjust to post divider minimum value */ + if (post_div < pd_min) + post_div = pd_min; + + /* we alway need a frequency less than or equal the target */ + if ((vco_freq / post_div) > target_freq) + post_div += 1; + + /* post dividers above a certain value must be even */ + if (post_div > pd_even && post_div % 2) + post_div += 1; + + return post_div; +} + +/** + * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers + * + * @rdev: radeon_device pointer + * @vclk: wanted VCLK + * @dclk: wanted DCLK + * @vco_min: minimum VCO frequency + * @vco_max: maximum VCO frequency + * @fb_factor: factor to multiply vco freq with + * @fb_mask: limit and bitmask for feedback divider + * @pd_min: post divider minimum + * @pd_max: post divider maximum + * @pd_even: post divider must be even above this value + * @optimal_fb_div: resulting feedback divider + * @optimal_vclk_div: resulting vclk post divider + * @optimal_dclk_div: resulting dclk post divider + * + * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs). + * Returns zero on success -EINVAL on error. + */ +int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev, + unsigned vclk, unsigned dclk, + unsigned vco_min, unsigned vco_max, + unsigned fb_factor, unsigned fb_mask, + unsigned pd_min, unsigned pd_max, + unsigned pd_even, + unsigned *optimal_fb_div, + unsigned *optimal_vclk_div, + unsigned *optimal_dclk_div) +{ + unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq; + + /* start off with something large */ + unsigned optimal_score = ~0; + + /* loop through vco from low to high */ + vco_min = max(max(vco_min, vclk), dclk); + for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) { + + uint64_t fb_div = (uint64_t)vco_freq * fb_factor; + unsigned vclk_div, dclk_div, score; + + do_div(fb_div, ref_freq); + + /* fb div out of range ? */ + if (fb_div > fb_mask) + break; /* it can oly get worse */ + + fb_div &= fb_mask; + + /* calc vclk divider with current vco freq */ + vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk, + pd_min, pd_even); + if (vclk_div > pd_max) + break; /* vco is too big, it has to stop */ + + /* calc dclk divider with current vco freq */ + dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk, + pd_min, pd_even); + if (vclk_div > pd_max) + break; /* vco is too big, it has to stop */ + + /* calc score with current vco freq */ + score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div); + + /* determine if this vco setting is better than current optimal settings */ + if (score < optimal_score) { + *optimal_fb_div = fb_div; + *optimal_vclk_div = vclk_div; + *optimal_dclk_div = dclk_div; + optimal_score = score; + if (optimal_score == 0) + break; /* it can't get better than this */ + } + } + + /* did we found a valid setup ? */ + if (optimal_score == ~0) + return -EINVAL; + + return 0; +} + +int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev, + unsigned cg_upll_func_cntl) +{ + unsigned i; + + /* make sure UPLL_CTLREQ is deasserted */ + WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK); + + mdelay(10); + + /* assert UPLL_CTLREQ */ + WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK); + + /* wait for CTLACK and CTLACK2 to get asserted */ + for (i = 0; i < 100; ++i) { + uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK; + if ((RREG32(cg_upll_func_cntl) & mask) == mask) + break; + mdelay(10); + } + + /* deassert UPLL_CTLREQ */ + WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK); + + if (i == 100) { + DRM_ERROR("Timeout setting UVD clocks!\n"); + return -ETIMEDOUT; + } + + return 0; +} -- cgit 1.2.3-korg