diff options
-rw-r--r-- | drivers/gpu/drm/radeon/evergreen_cs.c | 246 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/evergreend.h | 65 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/ni.c | 160 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/nid.h | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/r300.c | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/r600_cs.c | 8 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 123 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.c | 20 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.h | 12 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_cs.c | 253 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_gart.c | 388 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 136 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 47 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.c | 30 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.h | 12 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_ring.c | 1 | ||||
-rw-r--r-- | include/drm/radeon_drm.h | 36 |
19 files changed, 1480 insertions, 78 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index cd4590aae154..f7442e62c03f 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -520,7 +520,7 @@ static int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx) break; case DB_Z_INFO: track->db_z_info = radeon_get_ib_value(p, idx); - if (!p->keep_tiling_flags) { + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) { r = evergreen_cs_packet_next_reloc(p, &reloc); if (r) { dev_warn(p->dev, "bad SET_CONTEXT_REG " @@ -649,7 +649,7 @@ static int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx) case CB_COLOR7_INFO: tmp = (reg - CB_COLOR0_INFO) / 0x3c; track->cb_color_info[tmp] = radeon_get_ib_value(p, idx); - if (!p->keep_tiling_flags) { + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) { r = evergreen_cs_packet_next_reloc(p, &reloc); if (r) { dev_warn(p->dev, "bad SET_CONTEXT_REG " @@ -666,7 +666,7 @@ static int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx) case CB_COLOR11_INFO: tmp = ((reg - CB_COLOR8_INFO) / 0x1c) + 8; track->cb_color_info[tmp] = radeon_get_ib_value(p, idx); - if (!p->keep_tiling_flags) { + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) { r = evergreen_cs_packet_next_reloc(p, &reloc); if (r) { dev_warn(p->dev, "bad SET_CONTEXT_REG " @@ -1355,7 +1355,7 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p, return -EINVAL; } ib[idx+1+(i*8)+2] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); - if (!p->keep_tiling_flags) { + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) { ib[idx+1+(i*8)+1] |= TEX_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->lobj.tiling_flags)); if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO) { @@ -1572,3 +1572,241 @@ int evergreen_cs_parse(struct radeon_cs_parser *p) return 0; } +/* vm parser */ +static bool evergreen_vm_reg_valid(u32 reg) +{ + /* context regs are fine */ + if (reg >= 0x28000) + return true; + + /* check config regs */ + switch (reg) { + case GRBM_GFX_INDEX: + case VGT_VTX_VECT_EJECT_REG: + case VGT_CACHE_INVALIDATION: + case VGT_GS_VERTEX_REUSE: + case VGT_PRIMITIVE_TYPE: + case VGT_INDEX_TYPE: + case VGT_NUM_INDICES: + case VGT_NUM_INSTANCES: + case VGT_COMPUTE_DIM_X: + case VGT_COMPUTE_DIM_Y: + case VGT_COMPUTE_DIM_Z: + case VGT_COMPUTE_START_X: + case VGT_COMPUTE_START_Y: + case VGT_COMPUTE_START_Z: + case VGT_COMPUTE_INDEX: + case VGT_COMPUTE_THREAD_GROUP_SIZE: + case VGT_HS_OFFCHIP_PARAM: + case PA_CL_ENHANCE: + case PA_SU_LINE_STIPPLE_VALUE: + case PA_SC_LINE_STIPPLE_STATE: + case PA_SC_ENHANCE: + case SQ_DYN_GPR_CNTL_PS_FLUSH_REQ: + case SQ_DYN_GPR_SIMD_LOCK_EN: + case SQ_CONFIG: + case SQ_GPR_RESOURCE_MGMT_1: + case SQ_GLOBAL_GPR_RESOURCE_MGMT_1: + case SQ_GLOBAL_GPR_RESOURCE_MGMT_2: + case SQ_CONST_MEM_BASE: + case SQ_STATIC_THREAD_MGMT_1: + case SQ_STATIC_THREAD_MGMT_2: + case SQ_STATIC_THREAD_MGMT_3: + case SPI_CONFIG_CNTL: + case SPI_CONFIG_CNTL_1: + case TA_CNTL_AUX: + case DB_DEBUG: + case DB_DEBUG2: + case DB_DEBUG3: + case DB_DEBUG4: + case DB_WATERMARKS: + case TD_PS_BORDER_COLOR_INDEX: + case TD_PS_BORDER_COLOR_RED: + case TD_PS_BORDER_COLOR_GREEN: + case TD_PS_BORDER_COLOR_BLUE: + case TD_PS_BORDER_COLOR_ALPHA: + case TD_VS_BORDER_COLOR_INDEX: + case TD_VS_BORDER_COLOR_RED: + case TD_VS_BORDER_COLOR_GREEN: + case TD_VS_BORDER_COLOR_BLUE: + case TD_VS_BORDER_COLOR_ALPHA: + case TD_GS_BORDER_COLOR_INDEX: + case TD_GS_BORDER_COLOR_RED: + case TD_GS_BORDER_COLOR_GREEN: + case TD_GS_BORDER_COLOR_BLUE: + case TD_GS_BORDER_COLOR_ALPHA: + case TD_HS_BORDER_COLOR_INDEX: + case TD_HS_BORDER_COLOR_RED: + case TD_HS_BORDER_COLOR_GREEN: + case TD_HS_BORDER_COLOR_BLUE: + case TD_HS_BORDER_COLOR_ALPHA: + case TD_LS_BORDER_COLOR_INDEX: + case TD_LS_BORDER_COLOR_RED: + case TD_LS_BORDER_COLOR_GREEN: + case TD_LS_BORDER_COLOR_BLUE: + case TD_LS_BORDER_COLOR_ALPHA: + case TD_CS_BORDER_COLOR_INDEX: + case TD_CS_BORDER_COLOR_RED: + case TD_CS_BORDER_COLOR_GREEN: + case TD_CS_BORDER_COLOR_BLUE: + case TD_CS_BORDER_COLOR_ALPHA: + case SQ_ESGS_RING_SIZE: + case SQ_GSVS_RING_SIZE: + case SQ_ESTMP_RING_SIZE: + case SQ_GSTMP_RING_SIZE: + case SQ_HSTMP_RING_SIZE: + case SQ_LSTMP_RING_SIZE: + case SQ_PSTMP_RING_SIZE: + case SQ_VSTMP_RING_SIZE: + case SQ_ESGS_RING_ITEMSIZE: + case SQ_ESTMP_RING_ITEMSIZE: + case SQ_GSTMP_RING_ITEMSIZE: + case SQ_GSVS_RING_ITEMSIZE: + case SQ_GS_VERT_ITEMSIZE: + case SQ_GS_VERT_ITEMSIZE_1: + case SQ_GS_VERT_ITEMSIZE_2: + case SQ_GS_VERT_ITEMSIZE_3: + case SQ_GSVS_RING_OFFSET_1: + case SQ_GSVS_RING_OFFSET_2: + case SQ_GSVS_RING_OFFSET_3: + case SQ_HSTMP_RING_ITEMSIZE: + case SQ_LSTMP_RING_ITEMSIZE: + case SQ_PSTMP_RING_ITEMSIZE: + case SQ_VSTMP_RING_ITEMSIZE: + case VGT_TF_RING_SIZE: + case SQ_ESGS_RING_BASE: + case SQ_GSVS_RING_BASE: + case SQ_ESTMP_RING_BASE: + case SQ_GSTMP_RING_BASE: + case SQ_HSTMP_RING_BASE: + case SQ_LSTMP_RING_BASE: + case SQ_PSTMP_RING_BASE: + case SQ_VSTMP_RING_BASE: + case CAYMAN_VGT_OFFCHIP_LDS_BASE: + case CAYMAN_SQ_EX_ALLOC_TABLE_SLOTS: + return true; + default: + return false; + } +} + +static int evergreen_vm_packet3_check(struct radeon_device *rdev, + u32 *ib, struct radeon_cs_packet *pkt) +{ + u32 idx = pkt->idx + 1; + u32 idx_value = ib[idx]; + u32 start_reg, end_reg, reg, i; + + switch (pkt->opcode) { + case PACKET3_NOP: + case PACKET3_SET_BASE: + case PACKET3_CLEAR_STATE: + case PACKET3_INDEX_BUFFER_SIZE: + case PACKET3_DISPATCH_DIRECT: + case PACKET3_DISPATCH_INDIRECT: + case PACKET3_MODE_CONTROL: + case PACKET3_SET_PREDICATION: + case PACKET3_COND_EXEC: + case PACKET3_PRED_EXEC: + case PACKET3_DRAW_INDIRECT: + case PACKET3_DRAW_INDEX_INDIRECT: + case PACKET3_INDEX_BASE: + case PACKET3_DRAW_INDEX_2: + case PACKET3_CONTEXT_CONTROL: + case PACKET3_DRAW_INDEX_OFFSET: + case PACKET3_INDEX_TYPE: + case PACKET3_DRAW_INDEX: + case PACKET3_DRAW_INDEX_AUTO: + case PACKET3_DRAW_INDEX_IMMD: + case PACKET3_NUM_INSTANCES: + case PACKET3_DRAW_INDEX_MULTI_AUTO: + case PACKET3_STRMOUT_BUFFER_UPDATE: + case PACKET3_DRAW_INDEX_OFFSET_2: + case PACKET3_DRAW_INDEX_MULTI_ELEMENT: + case PACKET3_MPEG_INDEX: + case PACKET3_WAIT_REG_MEM: + case PACKET3_MEM_WRITE: + case PACKET3_SURFACE_SYNC: + case PACKET3_EVENT_WRITE: + case PACKET3_EVENT_WRITE_EOP: + case PACKET3_EVENT_WRITE_EOS: + case PACKET3_SET_CONTEXT_REG: + case PACKET3_SET_BOOL_CONST: + case PACKET3_SET_LOOP_CONST: + case PACKET3_SET_RESOURCE: + case PACKET3_SET_SAMPLER: + case PACKET3_SET_CTL_CONST: + case PACKET3_SET_RESOURCE_OFFSET: + case PACKET3_SET_CONTEXT_REG_INDIRECT: + case PACKET3_SET_RESOURCE_INDIRECT: + case CAYMAN_PACKET3_DEALLOC_STATE: + break; + case PACKET3_COND_WRITE: + if (idx_value & 0x100) { + reg = ib[idx + 5] * 4; + if (!evergreen_vm_reg_valid(reg)) + return -EINVAL; + } + break; + case PACKET3_COPY_DW: + if (idx_value & 0x2) { + reg = ib[idx + 3] * 4; + if (!evergreen_vm_reg_valid(reg)) + return -EINVAL; + } + break; + case PACKET3_SET_CONFIG_REG: + start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_START; + end_reg = 4 * pkt->count + start_reg - 4; + if ((start_reg < PACKET3_SET_CONFIG_REG_START) || + (start_reg >= PACKET3_SET_CONFIG_REG_END) || + (end_reg >= PACKET3_SET_CONFIG_REG_END)) { + DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n"); + return -EINVAL; + } + for (i = 0; i < pkt->count; i++) { + reg = start_reg + (4 * i); + if (!evergreen_vm_reg_valid(reg)) + return -EINVAL; + } + break; + default: + return -EINVAL; + } + return 0; +} + +int evergreen_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib) +{ + int ret = 0; + u32 idx = 0; + struct radeon_cs_packet pkt; + + do { + pkt.idx = idx; + pkt.type = CP_PACKET_GET_TYPE(ib->ptr[idx]); + pkt.count = CP_PACKET_GET_COUNT(ib->ptr[idx]); + pkt.one_reg_wr = 0; + switch (pkt.type) { + case PACKET_TYPE0: + dev_err(rdev->dev, "Packet0 not allowed!\n"); + ret = -EINVAL; + break; + case PACKET_TYPE2: + break; + case PACKET_TYPE3: + pkt.opcode = CP_PACKET3_GET_OPCODE(ib->ptr[idx]); + ret = evergreen_vm_packet3_check(rdev, ib->ptr, &pkt); + break; + default: + dev_err(rdev->dev, "Unknown packet type %d !\n", pkt.type); + ret = -EINVAL; + break; + } + if (ret) + break; + idx += pkt.count + 2; + } while (idx < ib->length_dw); + + return ret; +} diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index e00039e59a75..b502216d42af 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -242,6 +242,7 @@ #define PA_CL_ENHANCE 0x8A14 #define CLIP_VTX_REORDER_ENA (1 << 0) #define NUM_CLIP_SEQ(x) ((x) << 1) +#define PA_SC_ENHANCE 0x8BF0 #define PA_SC_AA_CONFIG 0x28C04 #define MSAA_NUM_SAMPLES_SHIFT 0 #define MSAA_NUM_SAMPLES_MASK 0x3 @@ -319,6 +320,8 @@ #define SQ_GPR_RESOURCE_MGMT_3 0x8C0C #define NUM_HS_GPRS(x) ((x) << 0) #define NUM_LS_GPRS(x) ((x) << 16) +#define SQ_GLOBAL_GPR_RESOURCE_MGMT_1 0x8C10 +#define SQ_GLOBAL_GPR_RESOURCE_MGMT_2 0x8C14 #define SQ_THREAD_RESOURCE_MGMT 0x8C18 #define NUM_PS_THREADS(x) ((x) << 0) #define NUM_VS_THREADS(x) ((x) << 8) @@ -337,6 +340,10 @@ #define NUM_HS_STACK_ENTRIES(x) ((x) << 0) #define NUM_LS_STACK_ENTRIES(x) ((x) << 16) #define SQ_DYN_GPR_CNTL_PS_FLUSH_REQ 0x8D8C +#define SQ_DYN_GPR_SIMD_LOCK_EN 0x8D94 +#define SQ_STATIC_THREAD_MGMT_1 0x8E20 +#define SQ_STATIC_THREAD_MGMT_2 0x8E24 +#define SQ_STATIC_THREAD_MGMT_3 0x8E28 #define SQ_LDS_RESOURCE_MGMT 0x8E2C #define SQ_MS_FIFO_SIZES 0x8CF0 @@ -691,6 +698,7 @@ #define PACKET3_DRAW_INDEX_MULTI_ELEMENT 0x36 #define PACKET3_MEM_SEMAPHORE 0x39 #define PACKET3_MPEG_INDEX 0x3A +#define PACKET3_COPY_DW 0x3B #define PACKET3_WAIT_REG_MEM 0x3C #define PACKET3_MEM_WRITE 0x3D #define PACKET3_INDIRECT_BUFFER 0x32 @@ -768,6 +776,8 @@ #define SQ_TEX_VTX_VALID_TEXTURE 0x2 #define SQ_TEX_VTX_VALID_BUFFER 0x3 +#define VGT_VTX_VECT_EJECT_REG 0x88b0 + #define SQ_CONST_MEM_BASE 0x8df8 #define SQ_ESGS_RING_BASE 0x8c40 @@ -892,8 +902,27 @@ #define PA_SC_SCREEN_SCISSOR_TL 0x28030 #define PA_SC_GENERIC_SCISSOR_TL 0x28240 #define PA_SC_WINDOW_SCISSOR_TL 0x28204 -#define VGT_PRIMITIVE_TYPE 0x8958 +#define VGT_PRIMITIVE_TYPE 0x8958 +#define VGT_INDEX_TYPE 0x895C + +#define VGT_NUM_INDICES 0x8970 + +#define VGT_COMPUTE_DIM_X 0x8990 +#define VGT_COMPUTE_DIM_Y 0x8994 +#define VGT_COMPUTE_DIM_Z 0x8998 +#define VGT_COMPUTE_START_X 0x899C +#define VGT_COMPUTE_START_Y 0x89A0 +#define VGT_COMPUTE_START_Z 0x89A4 +#define VGT_COMPUTE_INDEX 0x89A8 +#define VGT_COMPUTE_THREAD_GROUP_SIZE 0x89AC +#define VGT_HS_OFFCHIP_PARAM 0x89B0 + +#define DB_DEBUG 0x9830 +#define DB_DEBUG2 0x9834 +#define DB_DEBUG3 0x9838 +#define DB_DEBUG4 0x983C +#define DB_WATERMARKS 0x9854 #define DB_DEPTH_CONTROL 0x28800 #define DB_DEPTH_VIEW 0x28008 #define DB_HTILE_DATA_BASE 0x28014 @@ -1189,8 +1218,40 @@ #define SQ_VTX_CONSTANT_WORD6_0 0x30018 #define SQ_VTX_CONSTANT_WORD7_0 0x3001c +#define TD_PS_BORDER_COLOR_INDEX 0xA400 +#define TD_PS_BORDER_COLOR_RED 0xA404 +#define TD_PS_BORDER_COLOR_GREEN 0xA408 +#define TD_PS_BORDER_COLOR_BLUE 0xA40C +#define TD_PS_BORDER_COLOR_ALPHA 0xA410 +#define TD_VS_BORDER_COLOR_INDEX 0xA414 +#define TD_VS_BORDER_COLOR_RED 0xA418 +#define TD_VS_BORDER_COLOR_GREEN 0xA41C +#define TD_VS_BORDER_COLOR_BLUE 0xA420 +#define TD_VS_BORDER_COLOR_ALPHA 0xA424 +#define TD_GS_BORDER_COLOR_INDEX 0xA428 +#define TD_GS_BORDER_COLOR_RED 0xA42C +#define TD_GS_BORDER_COLOR_GREEN 0xA430 +#define TD_GS_BORDER_COLOR_BLUE 0xA434 +#define TD_GS_BORDER_COLOR_ALPHA 0xA438 +#define TD_HS_BORDER_COLOR_INDEX 0xA43C +#define TD_HS_BORDER_COLOR_RED 0xA440 +#define TD_HS_BORDER_COLOR_GREEN 0xA444 +#define TD_HS_BORDER_COLOR_BLUE 0xA448 +#define TD_HS_BORDER_COLOR_ALPHA 0xA44C +#define TD_LS_BORDER_COLOR_INDEX 0xA450 +#define TD_LS_BORDER_COLOR_RED 0xA454 +#define TD_LS_BORDER_COLOR_GREEN 0xA458 +#define TD_LS_BORDER_COLOR_BLUE 0xA45C +#define TD_LS_BORDER_COLOR_ALPHA 0xA460 +#define TD_CS_BORDER_COLOR_INDEX 0xA464 +#define TD_CS_BORDER_COLOR_RED 0xA468 +#define TD_CS_BORDER_COLOR_GREEN 0xA46C +#define TD_CS_BORDER_COLOR_BLUE 0xA470 +#define TD_CS_BORDER_COLOR_ALPHA 0xA474 + /* cayman 3D regs */ -#define CAYMAN_VGT_OFFCHIP_LDS_BASE 0x89B0 +#define CAYMAN_VGT_OFFCHIP_LDS_BASE 0x89B4 +#define CAYMAN_SQ_EX_ALLOC_TABLE_SLOTS 0x8E48 #define CAYMAN_DB_EQAA 0x28804 #define CAYMAN_DB_DEPTH_INFO 0x2803C #define CAYMAN_PA_SC_AA_CONFIG 0x28BE0 diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index d89b2ebd5bbb..321137295400 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -934,7 +934,7 @@ void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev) int cayman_pcie_gart_enable(struct radeon_device *rdev) { - int r; + int i, r; if (rdev->gart.robj == NULL) { dev_err(rdev->dev, "No VRAM object for PCIE GART.\n"); @@ -945,9 +945,12 @@ int cayman_pcie_gart_enable(struct radeon_device *rdev) return r; radeon_gart_restore(rdev); /* Setup TLB control */ - WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB | + WREG32(MC_VM_MX_L1_TLB_CNTL, + (0xA << 7) | + ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING | SYSTEM_ACCESS_MODE_NOT_IN_SYS | + ENABLE_ADVANCED_DRIVER_MODEL | SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU); /* Setup L2 cache */ WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | @@ -967,9 +970,26 @@ int cayman_pcie_gart_enable(struct radeon_device *rdev) WREG32(VM_CONTEXT0_CNTL2, 0); WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) | RANGE_PROTECTION_FAULT_ENABLE_DEFAULT); - /* disable context1-7 */ + + WREG32(0x15D4, 0); + WREG32(0x15D8, 0); + WREG32(0x15DC, 0); + + /* empty context1-7 */ + for (i = 1; i < 8; i++) { + WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (i << 2), 0); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (i << 2), 0); + WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2), + rdev->gart.table_addr >> 12); + } + + /* enable context1-7 */ + WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR, + (u32)(rdev->dummy_page.addr >> 12)); WREG32(VM_CONTEXT1_CNTL2, 0); WREG32(VM_CONTEXT1_CNTL, 0); + WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) | + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT); cayman_pcie_gart_tlb_flush(rdev); DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", @@ -1024,7 +1044,10 @@ void cayman_fence_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring = &rdev->ring[fence->ring]; u64 addr = rdev->fence_drv[fence->ring].gpu_addr; - /* flush read cache over gart */ + /* flush read cache over gart for this vmid */ + radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1)); + radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2); + radeon_ring_write(ring, 0); radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3)); radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA); radeon_ring_write(ring, 0xFFFFFFFF); @@ -1039,6 +1062,33 @@ void cayman_fence_ring_emit(struct radeon_device *rdev, radeon_ring_write(ring, 0); } +void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib) +{ + struct radeon_ring *ring = &rdev->ring[ib->fence->ring]; + + /* set to DX10/11 mode */ + radeon_ring_write(ring, PACKET3(PACKET3_MODE_CONTROL, 0)); + radeon_ring_write(ring, 1); + radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2)); + radeon_ring_write(ring, +#ifdef __BIG_ENDIAN + (2 << 0) | +#endif + (ib->gpu_addr & 0xFFFFFFFC)); + radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF); + radeon_ring_write(ring, ib->length_dw | (ib->vm_id << 24)); + + /* flush read cache over gart for this vmid */ + radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1)); + radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2); + radeon_ring_write(ring, ib->vm_id); + radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3)); + radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA); + radeon_ring_write(ring, 0xFFFFFFFF); + radeon_ring_write(ring, 0); + radeon_ring_write(ring, 10); /* poll interval */ +} + static void cayman_cp_enable(struct radeon_device *rdev, bool enable) { if (enable) @@ -1324,6 +1374,15 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev) RREG32(GRBM_STATUS_SE1)); dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n", RREG32(SRBM_STATUS)); + dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_ADDR 0x%08X\n", + RREG32(0x14F8)); + dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n", + RREG32(0x14D8)); + dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", + RREG32(0x14FC)); + dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", + RREG32(0x14DC)); + evergreen_mc_stop(rdev, &save); if (evergreen_mc_wait_for_idle(rdev)) { dev_warn(rdev->dev, "Wait for MC idle timedout !\n"); @@ -1354,6 +1413,7 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev) (void)RREG32(GRBM_SOFT_RESET); /* Wait a little for things to settle down */ udelay(50); + dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n", RREG32(GRBM_STATUS)); dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n", @@ -1464,6 +1524,10 @@ static int cayman_startup(struct radeon_device *rdev) return r; } + r = radeon_vm_manager_start(rdev); + if (r) + return r; + return 0; } @@ -1491,6 +1555,7 @@ int cayman_suspend(struct radeon_device *rdev) { /* FIXME: we should wait for ring to be empty */ radeon_ib_pool_suspend(rdev); + radeon_vm_manager_suspend(rdev); r600_blit_suspend(rdev); cayman_cp_enable(rdev, false); rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false; @@ -1577,6 +1642,10 @@ int cayman_init(struct radeon_device *rdev) dev_err(rdev->dev, "IB initialization failed (%d).\n", r); rdev->accel_working = false; } + r = radeon_vm_manager_init(rdev); + if (r) { + dev_err(rdev->dev, "vm manager initialization failed (%d).\n", r); + } r = cayman_startup(rdev); if (r) { @@ -1585,6 +1654,7 @@ int cayman_init(struct radeon_device *rdev) r600_irq_fini(rdev); radeon_wb_fini(rdev); r100_ib_fini(rdev); + radeon_vm_manager_fini(rdev); radeon_irq_kms_fini(rdev); cayman_pcie_gart_fini(rdev); rdev->accel_working = false; @@ -1608,6 +1678,7 @@ void cayman_fini(struct radeon_device *rdev) cayman_cp_fini(rdev); r600_irq_fini(rdev); radeon_wb_fini(rdev); + radeon_vm_manager_fini(rdev); r100_ib_fini(rdev); radeon_irq_kms_fini(rdev); cayman_pcie_gart_fini(rdev); @@ -1621,3 +1692,84 @@ void cayman_fini(struct radeon_device *rdev) rdev->bios = NULL; } +/* + * vm + */ +int cayman_vm_init(struct radeon_device *rdev) +{ + /* number of VMs */ + rdev->vm_manager.nvm = 8; + /* base offset of vram pages */ + rdev->vm_manager.vram_base_offset = 0; + return 0; +} + +void cayman_vm_fini(struct radeon_device *rdev) +{ +} + +int cayman_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm, int id) +{ + WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (id << 2), 0); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (id << 2), vm->last_pfn); + WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (id << 2), vm->pt_gpu_addr >> 12); + /* flush hdp cache */ + WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1); + /* bits 0-7 are the VM contexts0-7 */ + WREG32(VM_INVALIDATE_REQUEST, 1 << id); + return 0; +} + +void cayman_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm) +{ + WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (vm->id << 2), 0); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (vm->id << 2), 0); + WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2), 0); + /* flush hdp cache */ + WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1); + /* bits 0-7 are the VM contexts0-7 */ + WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id); +} + +void cayman_vm_tlb_flush(struct radeon_device *rdev, struct radeon_vm *vm) +{ + if (vm->id == -1) + return; + + /* flush hdp cache */ + WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1); + /* bits 0-7 are the VM contexts0-7 */ + WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id); +} + +#define R600_PTE_VALID (1 << 0) +#define R600_PTE_SYSTEM (1 << 1) +#define R600_PTE_SNOOPED (1 << 2) +#define R600_PTE_READABLE (1 << 5) +#define R600_PTE_WRITEABLE (1 << 6) + +uint32_t cayman_vm_page_flags(struct radeon_device *rdev, + struct radeon_vm *vm, + uint32_t flags) +{ + uint32_t r600_flags = 0; + + r600_flags |= (flags & RADEON_VM_PAGE_VALID) ? R600_PTE_VALID : 0; + r600_flags |= (flags & RADEON_VM_PAGE_READABLE) ? R600_PTE_READABLE : 0; + r600_flags |= (flags & RADEON_VM_PAGE_WRITEABLE) ? R600_PTE_WRITEABLE : 0; + if (flags & RADEON_VM_PAGE_SYSTEM) { + r600_flags |= R600_PTE_SYSTEM; + r600_flags |= (flags & RADEON_VM_PAGE_SNOOPED) ? R600_PTE_SNOOPED : 0; + } + return r600_flags; +} + +void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm, + unsigned pfn, uint64_t addr, uint32_t flags) +{ + void __iomem *ptr = (void *)vm->pt; + + addr = addr & 0xFFFFFFFFFFFFF000ULL; + addr |= flags; + writeq(addr, ptr + (pfn * 8)); +} diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h index 0d3f52cff2f6..f9df2a645e79 100644 --- a/drivers/gpu/drm/radeon/nid.h +++ b/drivers/gpu/drm/radeon/nid.h @@ -222,6 +222,7 @@ #define SCRATCH_UMSK 0x8540 #define SCRATCH_ADDR 0x8544 #define CP_SEM_WAIT_TIMER 0x85BC +#define CP_COHER_CNTL2 0x85E8 #define CP_ME_CNTL 0x86D8 #define CP_ME_HALT (1 << 28) #define CP_PFP_HALT (1 << 26) @@ -458,6 +459,7 @@ #define PACKET3_DISPATCH_DIRECT 0x15 #define PACKET3_DISPATCH_INDIRECT 0x16 #define PACKET3_INDIRECT_BUFFER_END 0x17 +#define PACKET3_MODE_CONTROL 0x18 #define PACKET3_SET_PREDICATION 0x20 #define PACKET3_REG_RMW 0x21 #define PACKET3_COND_EXEC 0x22 diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 8ad5c6475d55..3fc0d29a5f39 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -704,7 +704,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, return r; } - if (p->keep_tiling_flags) { + if (p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) { ib[idx] = (idx_value & 31) | /* keep the 1st 5 bits */ ((idx_value & ~31) + (u32)reloc->lobj.gpu_offset); } else { @@ -768,7 +768,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, /* RB3D_COLORPITCH1 */ /* RB3D_COLORPITCH2 */ /* RB3D_COLORPITCH3 */ - if (!p->keep_tiling_flags) { + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) { r = r100_cs_packet_next_reloc(p, &reloc); if (r) { DRM_ERROR("No reloc for ib[%d]=0x%04X\n", @@ -853,7 +853,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, break; case 0x4F24: /* ZB_DEPTHPITCH */ - if (!p->keep_tiling_flags) { + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) { r = r100_cs_packet_next_reloc(p, &reloc); if (r) { DRM_ERROR("No reloc for ib[%d]=0x%04X\n", diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c index cb1acffd2430..38ce5d0427e3 100644 --- a/drivers/gpu/drm/radeon/r600_cs.c +++ b/drivers/gpu/drm/radeon/r600_cs.c @@ -941,7 +941,7 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx) track->db_depth_control = radeon_get_ib_value(p, idx); break; case R_028010_DB_DEPTH_INFO: - if (!p->keep_tiling_flags && + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) && r600_cs_packet_next_is_pkt3_nop(p)) { r = r600_cs_packet_next_reloc(p, &reloc); if (r) { @@ -993,7 +993,7 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx) case R_0280B4_CB_COLOR5_INFO: case R_0280B8_CB_COLOR6_INFO: case R_0280BC_CB_COLOR7_INFO: - if (!p->keep_tiling_flags && + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) && r600_cs_packet_next_is_pkt3_nop(p)) { r = r600_cs_packet_next_reloc(p, &reloc); if (r) { @@ -1293,7 +1293,7 @@ static int r600_check_texture_resource(struct radeon_cs_parser *p, u32 idx, mip_offset <<= 8; word0 = radeon_get_ib_value(p, idx + 0); - if (!p->keep_tiling_flags) { + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) { if (tiling_flags & RADEON_TILING_MACRO) word0 |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1); else if (tiling_flags & RADEON_TILING_MICRO) @@ -1625,7 +1625,7 @@ static int r600_packet3_check(struct radeon_cs_parser *p, return -EINVAL; } base_offset = (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); - if (!p->keep_tiling_flags) { + if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) { if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO) ib[idx+1+(i*7)+0] |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1); else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO) diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 374f9a4d94ef..5e3542384b21 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -118,6 +118,10 @@ extern int radeon_msi; #define CAYMAN_RING_TYPE_CP1_INDEX 1 #define CAYMAN_RING_TYPE_CP2_INDEX 2 +/* hardcode those limit for now */ +#define RADEON_VA_RESERVED_SIZE (8 << 20) +#define RADEON_IB_VM_MAX_SIZE (64 << 10) + /* * Errata workarounds. */ @@ -262,6 +266,21 @@ struct radeon_mman { bool initialized; }; +/* bo virtual address in a specific vm */ +struct radeon_bo_va { + /* bo list is protected by bo being reserved */ + struct list_head bo_list; + /* vm list is protected by vm mutex */ + struct list_head vm_list; + /* constant after initialization */ + struct radeon_vm *vm; + struct radeon_bo *bo; + uint64_t soffset; + uint64_t eoffset; + uint32_t flags; + bool valid; +}; + struct radeon_bo { /* Protected by gem.mutex */ struct list_head list; @@ -275,6 +294,10 @@ struct radeon_bo { u32 tiling_flags; u32 pitch; int surface_reg; + /* list of all virtual address to which this bo + * is associated to + */ + struct list_head va; /* Constant after initialization */ struct radeon_device *rdev; struct drm_gem_object gem_base; @@ -408,6 +431,7 @@ struct radeon_mc; #define RADEON_GPU_PAGE_SIZE 4096 #define RADEON_GPU_PAGE_MASK (RADEON_GPU_PAGE_SIZE - 1) #define RADEON_GPU_PAGE_SHIFT 12 +#define RADEON_GPU_PAGE_ALIGN(a) (((a) + RADEON_GPU_PAGE_MASK) & ~RADEON_GPU_PAGE_MASK) struct radeon_gart { dma_addr_t table_addr; @@ -565,6 +589,7 @@ struct radeon_ib { uint64_t gpu_addr; uint32_t *ptr; struct radeon_fence *fence; + unsigned vm_id; }; /* @@ -602,6 +627,56 @@ struct radeon_ring { }; /* + * VM + */ +struct radeon_vm { + struct list_head list; + struct list_head va; + int id; + unsigned last_pfn; + u64 pt_gpu_addr; + u64 *pt; + struct radeon_sa_bo sa_bo; + struct mutex mutex; + /* last fence for cs using this vm */ + struct radeon_fence *fence; +}; + +struct radeon_vm_funcs { + int (*init)(struct radeon_device *rdev); + void (*fini)(struct radeon_device *rdev); + /* cs mutex must be lock for schedule_ib */ + int (*bind)(struct radeon_device *rdev, struct radeon_vm *vm, int id); + void (*unbind)(struct radeon_device *rdev, struct radeon_vm *vm); + void (*tlb_flush)(struct radeon_device *rdev, struct radeon_vm *vm); + uint32_t (*page_flags)(struct radeon_device *rdev, + struct radeon_vm *vm, + uint32_t flags); + void (*set_page)(struct radeon_device *rdev, struct radeon_vm *vm, + unsigned pfn, uint64_t addr, uint32_t flags); +}; + +struct radeon_vm_manager { + struct list_head lru_vm; + uint32_t use_bitmap; + struct radeon_sa_manager sa_manager; + uint32_t max_pfn; + /* fields constant after init */ + const struct radeon_vm_funcs *funcs; + /* number of VMIDs */ + unsigned nvm; + /* vram base address for page table entry */ + u64 vram_base_offset; +}; + +/* + * file private structure + */ +struct radeon_fpriv { + struct radeon_vm vm; +}; + +/* * R6xx+ IH ring */ struct r600_ih { @@ -691,12 +766,12 @@ struct radeon_cs_reloc { struct radeon_cs_chunk { uint32_t chunk_id; uint32_t length_dw; - int kpage_idx[2]; - uint32_t *kpage[2]; + int kpage_idx[2]; + uint32_t *kpage[2]; uint32_t *kdata; - void __user *user_ptr; - int last_copied_page; - int last_page_index; + void __user *user_ptr; + int last_copied_page; + int last_page_index; }; struct radeon_cs_parser { @@ -717,11 +792,14 @@ struct radeon_cs_parser { /* indices of various chunks */ int chunk_ib_idx; int chunk_relocs_idx; + int chunk_flags_idx; struct radeon_ib *ib; void *track; unsigned family; int parser_error; - bool keep_tiling_flags; + u32 cs_flags; + u32 ring; + s32 priority; }; extern int radeon_cs_update_pages(struct radeon_cs_parser *p, int pg_idx); @@ -1018,6 +1096,7 @@ struct radeon_asic { struct { void (*ib_execute)(struct radeon_device *rdev, struct radeon_ib *ib); + int (*ib_parse)(struct radeon_device *rdev, struct radeon_ib *ib); void (*emit_fence)(struct radeon_device *rdev, struct radeon_fence *fence); void (*emit_semaphore)(struct radeon_device *rdev, struct radeon_ring *cp, struct radeon_semaphore *semaphore, bool emit_wait); @@ -1255,6 +1334,8 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); +int radeon_gem_va_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp); int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); @@ -1404,6 +1485,8 @@ struct radeon_device { /* debugfs */ struct radeon_debugfs debugfs[RADEON_DEBUGFS_MAX_COMPONENTS]; unsigned debugfs_count; + /* virtual memory */ + struct radeon_vm_manager vm_manager; }; int radeon_device_init(struct radeon_device *rdev, @@ -1568,6 +1651,7 @@ void radeon_ring_write(struct radeon_ring *ring, uint32_t v); #define radeon_ring_start(rdev) (rdev)->asic->ring_start((rdev)) #define radeon_ring_test(rdev, cp) (rdev)->asic->ring_test((rdev), (cp)) #define radeon_ring_ib_execute(rdev, r, ib) (rdev)->asic->ring[(r)].ib_execute((rdev), (ib)) +#define radeon_ring_ib_parse(rdev, r, ib) (rdev)->asic->ring[(r)].ib_parse((rdev), (ib)) #define radeon_irq_set(rdev) (rdev)->asic->irq_set((rdev)) #define radeon_irq_process(rdev) (rdev)->asic->irq_process((rdev)) #define radeon_get_vblank_counter(rdev, crtc) (rdev)->asic->get_vblank_counter((rdev), (crtc)) @@ -1627,6 +1711,33 @@ extern int radeon_suspend_kms(struct drm_device *dev, pm_message_t state); extern void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size); /* + * vm + */ +int radeon_vm_manager_init(struct radeon_device *rdev); +void radeon_vm_manager_fini(struct radeon_device *rdev); +int radeon_vm_manager_start(struct radeon_device *rdev); +int radeon_vm_manager_suspend(struct radeon_device *rdev); +int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm); +void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm); +int radeon_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm); +void radeon_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm); +int radeon_vm_bo_update_pte(struct radeon_device *rdev, + struct radeon_vm *vm, + struct radeon_bo *bo, + struct ttm_mem_reg *mem); +void radeon_vm_bo_invalidate(struct radeon_device *rdev, + struct radeon_bo *bo); +int radeon_vm_bo_add(struct radeon_device *rdev, + struct radeon_vm *vm, + struct radeon_bo *bo, + uint64_t offset, + uint32_t flags); +int radeon_vm_bo_rmv(struct radeon_device *rdev, + struct radeon_vm *vm, + struct radeon_bo *bo); + + +/* * R600 vram scratch functions */ int r600_vram_scratch_init(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 8493d406f5e3..123a1969d284 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -952,6 +952,16 @@ static struct radeon_asic btc_asic = { .post_page_flip = &evergreen_post_page_flip, }; +static const struct radeon_vm_funcs cayman_vm_funcs = { + .init = &cayman_vm_init, + .fini = &cayman_vm_fini, + .bind = &cayman_vm_bind, + .unbind = &cayman_vm_unbind, + .tlb_flush = &cayman_vm_tlb_flush, + .page_flags = &cayman_vm_page_flags, + .set_page = &cayman_vm_set_page, +}; + static struct radeon_asic cayman_asic = { .init = &cayman_init, .fini = &cayman_fini, @@ -965,17 +975,20 @@ static struct radeon_asic cayman_asic = { .ring_test = &r600_ring_test, .ring = { [RADEON_RING_TYPE_GFX_INDEX] = { - .ib_execute = &evergreen_ring_ib_execute, + .ib_execute = &cayman_ring_ib_execute, + .ib_parse = &evergreen_ib_parse, .emit_fence = &cayman_fence_ring_emit, .emit_semaphore = &r600_semaphore_ring_emit, }, [CAYMAN_RING_TYPE_CP1_INDEX] = { - .ib_execute = &r600_ring_ib_execute, + .ib_execute = &cayman_ring_ib_execute, + .ib_parse = &evergreen_ib_parse, .emit_fence = &cayman_fence_ring_emit, .emit_semaphore = &r600_semaphore_ring_emit, }, [CAYMAN_RING_TYPE_CP2_INDEX] = { - .ib_execute = &r600_ring_ib_execute, + .ib_execute = &cayman_ring_ib_execute, + .ib_parse = &evergreen_ib_parse, .emit_fence = &cayman_fence_ring_emit, .emit_semaphore = &r600_semaphore_ring_emit, } @@ -1128,6 +1141,7 @@ int radeon_asic_init(struct radeon_device *rdev) rdev->asic = &cayman_asic; /* set num crtcs */ rdev->num_crtc = 6; + rdev->vm_manager.funcs = &cayman_vm_funcs; break; default: /* FIXME: not supported yet */ diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index c002ed1c4483..6304aef0d9b2 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -438,5 +438,17 @@ int cayman_suspend(struct radeon_device *rdev); int cayman_resume(struct radeon_device *rdev); bool cayman_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp); int cayman_asic_reset(struct radeon_device *rdev); +void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib); +int cayman_vm_init(struct radeon_device *rdev); +void cayman_vm_fini(struct radeon_device *rdev); +int cayman_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm, int id); +void cayman_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm); +void cayman_vm_tlb_flush(struct radeon_device *rdev, struct radeon_vm *vm); +uint32_t cayman_vm_page_flags(struct radeon_device *rdev, + struct radeon_vm *vm, + uint32_t flags); +void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm, + unsigned pfn, uint64_t addr, uint32_t flags); +int evergreen_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib); #endif diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 6559cc455135..4d595403b50c 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -90,11 +90,32 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p) return radeon_bo_list_validate(&p->validated); } +static int radeon_cs_get_ring(struct radeon_cs_parser *p, u32 ring, s32 priority) +{ + p->priority = priority; + + switch (ring) { + default: + DRM_ERROR("unknown ring id: %d\n", ring); + return -EINVAL; + case RADEON_CS_RING_GFX: + p->ring = RADEON_RING_TYPE_GFX_INDEX; + break; + case RADEON_CS_RING_COMPUTE: + /* for now */ + p->ring = RADEON_RING_TYPE_GFX_INDEX; + break; + } + return 0; +} + int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) { struct drm_radeon_cs *cs = data; uint64_t *chunk_array_ptr; - unsigned size, i, flags = 0; + unsigned size, i; + u32 ring = RADEON_CS_RING_GFX; + s32 priority = 0; if (!cs->num_chunks) { return 0; @@ -104,6 +125,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) p->idx = 0; p->chunk_ib_idx = -1; p->chunk_relocs_idx = -1; + p->chunk_flags_idx = -1; p->chunks_array = kcalloc(cs->num_chunks, sizeof(uint64_t), GFP_KERNEL); if (p->chunks_array == NULL) { return -ENOMEM; @@ -113,6 +135,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) sizeof(uint64_t)*cs->num_chunks)) { return -EFAULT; } + p->cs_flags = 0; p->nchunks = cs->num_chunks; p->chunks = kcalloc(p->nchunks, sizeof(struct radeon_cs_chunk), GFP_KERNEL); if (p->chunks == NULL) { @@ -141,16 +164,19 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) if (p->chunks[i].length_dw == 0) return -EINVAL; } - if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS && - !p->chunks[i].length_dw) { - return -EINVAL; + if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS) { + p->chunk_flags_idx = i; + /* zero length flags aren't useful */ + if (p->chunks[i].length_dw == 0) + return -EINVAL; } p->chunks[i].length_dw = user_chunk.length_dw; p->chunks[i].user_ptr = (void __user *)(unsigned long)user_chunk.chunk_data; cdata = (uint32_t *)(unsigned long)user_chunk.chunk_data; - if (p->chunks[i].chunk_id != RADEON_CHUNK_ID_IB) { + if ((p->chunks[i].chunk_id == RADEON_CHUNK_ID_RELOCS) || + (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS)) { size = p->chunks[i].length_dw * sizeof(uint32_t); p->chunks[i].kdata = kmalloc(size, GFP_KERNEL); if (p->chunks[i].kdata == NULL) { @@ -161,29 +187,58 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) return -EFAULT; } if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS) { - flags = p->chunks[i].kdata[0]; + p->cs_flags = p->chunks[i].kdata[0]; + if (p->chunks[i].length_dw > 1) + ring = p->chunks[i].kdata[1]; + if (p->chunks[i].length_dw > 2) + priority = (s32)p->chunks[i].kdata[2]; } - } else { - p->chunks[i].kpage[0] = kmalloc(PAGE_SIZE, GFP_KERNEL); - p->chunks[i].kpage[1] = kmalloc(PAGE_SIZE, GFP_KERNEL); - if (p->chunks[i].kpage[0] == NULL || p->chunks[i].kpage[1] == NULL) { - kfree(p->chunks[i].kpage[0]); - kfree(p->chunks[i].kpage[1]); - return -ENOMEM; - } - p->chunks[i].kpage_idx[0] = -1; - p->chunks[i].kpage_idx[1] = -1; - p->chunks[i].last_copied_page = -1; - p->chunks[i].last_page_index = ((p->chunks[i].length_dw * 4) - 1) / PAGE_SIZE; } } - if (p->chunks[p->chunk_ib_idx].length_dw > (16 * 1024)) { - DRM_ERROR("cs IB too big: %d\n", - p->chunks[p->chunk_ib_idx].length_dw); + + if ((p->cs_flags & RADEON_CS_USE_VM) && + (p->rdev->family < CHIP_CAYMAN)) { + DRM_ERROR("VM not supported on asic!\n"); + if (p->chunk_relocs_idx != -1) + kfree(p->chunks[p->chunk_relocs_idx].kdata); + if (p->chunk_flags_idx != -1) + kfree(p->chunks[p->chunk_flags_idx].kdata); return -EINVAL; } - p->keep_tiling_flags = (flags & RADEON_CS_KEEP_TILING_FLAGS) != 0; + if (radeon_cs_get_ring(p, ring, priority)) { + if (p->chunk_relocs_idx != -1) + kfree(p->chunks[p->chunk_relocs_idx].kdata); + if (p->chunk_flags_idx != -1) + kfree(p->chunks[p->chunk_flags_idx].kdata); + return -EINVAL; + } + + + /* deal with non-vm */ + if ((p->chunk_ib_idx != -1) && + ((p->cs_flags & RADEON_CS_USE_VM) == 0) && + (p->chunks[p->chunk_ib_idx].chunk_id == RADEON_CHUNK_ID_IB)) { + if (p->chunks[p->chunk_ib_idx].length_dw > (16 * 1024)) { + DRM_ERROR("cs IB too big: %d\n", + p->chunks[p->chunk_ib_idx].length_dw); + return -EINVAL; + } + p->chunks[p->chunk_ib_idx].kpage[0] = kmalloc(PAGE_SIZE, GFP_KERNEL); + p->chunks[p->chunk_ib_idx].kpage[1] = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (p->chunks[p->chunk_ib_idx].kpage[0] == NULL || + p->chunks[p->chunk_ib_idx].kpage[1] == NULL) { + kfree(p->chunks[p->chunk_ib_idx].kpage[0]); + kfree(p->chunks[p->chunk_ib_idx].kpage[1]); + return -ENOMEM; + } + p->chunks[p->chunk_ib_idx].kpage_idx[0] = -1; + p->chunks[p->chunk_ib_idx].kpage_idx[1] = -1; + p->chunks[p->chunk_ib_idx].last_copied_page = -1; + p->chunks[p->chunk_ib_idx].last_page_index = + ((p->chunks[p->chunk_ib_idx].length_dw * 4) - 1) / PAGE_SIZE; + } + return 0; } @@ -225,11 +280,131 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error) radeon_ib_free(parser->rdev, &parser->ib); } +static int radeon_cs_ib_chunk(struct radeon_device *rdev, + struct radeon_cs_parser *parser) +{ + struct radeon_cs_chunk *ib_chunk; + int r; + + if (parser->chunk_ib_idx == -1) + return 0; + + if (parser->cs_flags & RADEON_CS_USE_VM) + return 0; + + ib_chunk = &parser->chunks[parser->chunk_ib_idx]; + /* Copy the packet into the IB, the parser will read from the + * input memory (cached) and write to the IB (which can be + * uncached). + */ + r = radeon_ib_get(rdev, parser->ring, &parser->ib, + ib_chunk->length_dw * 4); + if (r) { + DRM_ERROR("Failed to get ib !\n"); + return r; + } + parser->ib->length_dw = ib_chunk->length_dw; + r = radeon_cs_parse(parser); + if (r || parser->parser_error) { + DRM_ERROR("Invalid command stream !\n"); + return r; + } + r = radeon_cs_finish_pages(parser); + if (r) { + DRM_ERROR("Invalid command stream !\n"); + return r; + } + parser->ib->vm_id = 0; + r = radeon_ib_schedule(rdev, parser->ib); + if (r) { + DRM_ERROR("Failed to schedule IB !\n"); + } + return 0; +} + +static int radeon_bo_vm_update_pte(struct radeon_cs_parser *parser, + struct radeon_vm *vm) +{ + struct radeon_bo_list *lobj; + struct radeon_bo *bo; + int r; + + list_for_each_entry(lobj, &parser->validated, tv.head) { + bo = lobj->bo; + r = radeon_vm_bo_update_pte(parser->rdev, vm, bo, &bo->tbo.mem); + if (r) { + return r; + } + } + return 0; +} + +static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev, + struct radeon_cs_parser *parser) +{ + struct radeon_cs_chunk *ib_chunk; + struct radeon_fpriv *fpriv = parser->filp->driver_priv; + struct radeon_vm *vm = &fpriv->vm; + int r; + + if (parser->chunk_ib_idx == -1) + return 0; + + if ((parser->cs_flags & RADEON_CS_USE_VM) == 0) + return 0; + + ib_chunk = &parser->chunks[parser->chunk_ib_idx]; + if (ib_chunk->length_dw > RADEON_IB_VM_MAX_SIZE) { + DRM_ERROR("cs IB too big: %d\n", ib_chunk->length_dw); + return -EINVAL; + } + r = radeon_ib_get(rdev, parser->ring, &parser->ib, + ib_chunk->length_dw * 4); + if (r) { + DRM_ERROR("Failed to get ib !\n"); + return r; + } + parser->ib->length_dw = ib_chunk->length_dw; + /* Copy the packet into the IB */ + if (DRM_COPY_FROM_USER(parser->ib->ptr, ib_chunk->user_ptr, + ib_chunk->length_dw * 4)) { + return -EFAULT; + } + r = radeon_ring_ib_parse(rdev, parser->ring, parser->ib); + if (r) { + return r; + } + + mutex_lock(&vm->mutex); + r = radeon_vm_bind(rdev, vm); + if (r) { + goto out; + } + r = radeon_bo_vm_update_pte(parser, vm); + if (r) { + goto out; + } + parser->ib->vm_id = vm->id; + /* ib pool is bind at 0 in virtual address space to gpu_addr is the + * offset inside the pool bo + */ + parser->ib->gpu_addr = parser->ib->sa_bo.offset; + r = radeon_ib_schedule(rdev, parser->ib); +out: + if (!r) { + if (vm->fence) { + radeon_fence_unref(&vm->fence); + } + vm->fence = radeon_fence_ref(parser->ib->fence); + } + mutex_unlock(&fpriv->vm.mutex); + return r; +} + int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { struct radeon_device *rdev = dev->dev_private; struct radeon_cs_parser parser; - struct radeon_cs_chunk *ib_chunk; int r; radeon_mutex_lock(&rdev->cs_mutex); @@ -246,15 +421,6 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) radeon_mutex_unlock(&rdev->cs_mutex); return r; } - ib_chunk = &parser.chunks[parser.chunk_ib_idx]; - r = radeon_ib_get(rdev, RADEON_RING_TYPE_GFX_INDEX, &parser.ib, - ib_chunk->length_dw * 4); - if (r) { - DRM_ERROR("Failed to get ib !\n"); - radeon_cs_parser_fini(&parser, r); - radeon_mutex_unlock(&rdev->cs_mutex); - return r; - } r = radeon_cs_parser_relocs(&parser); if (r) { if (r != -ERESTARTSYS) @@ -263,28 +429,15 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) radeon_mutex_unlock(&rdev->cs_mutex); return r; } - /* Copy the packet into the IB, the parser will read from the - * input memory (cached) and write to the IB (which can be - * uncached). */ - parser.ib->length_dw = ib_chunk->length_dw; - r = radeon_cs_parse(&parser); - if (r || parser.parser_error) { - DRM_ERROR("Invalid command stream !\n"); - radeon_cs_parser_fini(&parser, r); - radeon_mutex_unlock(&rdev->cs_mutex); - return r; - } - r = radeon_cs_finish_pages(&parser); + r = radeon_cs_ib_chunk(rdev, &parser); if (r) { - DRM_ERROR("Invalid command stream !\n"); - radeon_cs_parser_fini(&parser, r); - radeon_mutex_unlock(&rdev->cs_mutex); - return r; + goto out; } - r = radeon_ib_schedule(rdev, parser.ib); + r = radeon_cs_ib_vm_chunk(rdev, &parser); if (r) { - DRM_ERROR("Failed to schedule IB !\n"); + goto out; } +out: radeon_cs_parser_fini(&parser, r); radeon_mutex_unlock(&rdev->cs_mutex); return r; diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 79b08b487298..0afb13bd8dca 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -735,6 +735,10 @@ int radeon_device_init(struct radeon_device *rdev, init_waitqueue_head(&rdev->irq.vblank_queue); init_waitqueue_head(&rdev->irq.idle_queue); INIT_LIST_HEAD(&rdev->semaphore_drv.bo); + /* initialize vm here */ + rdev->vm_manager.use_bitmap = 1; + rdev->vm_manager.max_pfn = 1 << 20; + INIT_LIST_HEAD(&rdev->vm_manager.lru_vm); /* Set asic functions */ r = radeon_asic_init(rdev); diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index c3ef1d266f88..31da622eef63 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -54,9 +54,10 @@ * 2.10.0 - fusion 2D tiling * 2.11.0 - backend map, initial compute support for the CS checker * 2.12.0 - RADEON_CS_KEEP_TILING_FLAGS + * 2.13.0 - virtual memory support */ #define KMS_DRIVER_MAJOR 2 -#define KMS_DRIVER_MINOR 12 +#define KMS_DRIVER_MINOR 13 #define KMS_DRIVER_PATCHLEVEL 0 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags); int radeon_driver_unload_kms(struct drm_device *dev); @@ -84,6 +85,10 @@ int radeon_dma_ioctl_kms(struct drm_device *dev, void *data, struct drm_file *file_priv); int radeon_gem_object_init(struct drm_gem_object *obj); void radeon_gem_object_free(struct drm_gem_object *obj); +int radeon_gem_object_open(struct drm_gem_object *obj, + struct drm_file *file_priv); +void radeon_gem_object_close(struct drm_gem_object *obj, + struct drm_file *file_priv); extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, int *vpos, int *hpos); extern struct drm_ioctl_desc radeon_ioctls_kms[]; @@ -350,6 +355,8 @@ static struct drm_driver kms_driver = { .ioctls = radeon_ioctls_kms, .gem_init_object = radeon_gem_object_init, .gem_free_object = radeon_gem_object_free, + .gem_open_object = radeon_gem_object_open, + .gem_close_object = radeon_gem_object_close, .dma_ioctl = radeon_dma_ioctl_kms, .dumb_create = radeon_mode_dumb_create, .dumb_map_offset = radeon_mode_dumb_mmap, diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index a4d981608580..3ef58cab18c9 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -276,3 +276,391 @@ void radeon_gart_fini(struct radeon_device *rdev) radeon_dummy_page_fini(rdev); } + +/* + * vm helpers + * + * TODO bind a default page at vm initialization for default address + */ +int radeon_vm_manager_init(struct radeon_device *rdev) +{ + int r; + + /* mark first vm as always in use, it's the system one */ + r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager, + rdev->vm_manager.max_pfn * 8, + RADEON_GEM_DOMAIN_VRAM); + if (r) { + dev_err(rdev->dev, "failed to allocate vm bo (%dKB)\n", + (rdev->vm_manager.max_pfn * 8) >> 10); + return r; + } + return rdev->vm_manager.funcs->init(rdev); +} + +/* cs mutex must be lock */ +static void radeon_vm_unbind_locked(struct radeon_device *rdev, + struct radeon_vm *vm) +{ + struct radeon_bo_va *bo_va; + + if (vm->id == -1) { + return; + } + + /* wait for vm use to end */ + if (vm->fence) { + radeon_fence_wait(vm->fence, false); + radeon_fence_unref(&vm->fence); + } + + /* hw unbind */ + rdev->vm_manager.funcs->unbind(rdev, vm); + rdev->vm_manager.use_bitmap &= ~(1 << vm->id); + list_del_init(&vm->list); + vm->id = -1; + radeon_sa_bo_free(rdev, &vm->sa_bo); + vm->pt = NULL; + + list_for_each_entry(bo_va, &vm->va, vm_list) { + bo_va->valid = false; + } +} + +void radeon_vm_manager_fini(struct radeon_device *rdev) +{ + if (rdev->vm_manager.sa_manager.bo == NULL) + return; + radeon_vm_manager_suspend(rdev); + rdev->vm_manager.funcs->fini(rdev); + radeon_sa_bo_manager_fini(rdev, &rdev->vm_manager.sa_manager); +} + +int radeon_vm_manager_start(struct radeon_device *rdev) +{ + if (rdev->vm_manager.sa_manager.bo == NULL) { + return -EINVAL; + } + return radeon_sa_bo_manager_start(rdev, &rdev->vm_manager.sa_manager); +} + +int radeon_vm_manager_suspend(struct radeon_device *rdev) +{ + struct radeon_vm *vm, *tmp; + + radeon_mutex_lock(&rdev->cs_mutex); + /* unbind all active vm */ + list_for_each_entry_safe(vm, tmp, &rdev->vm_manager.lru_vm, list) { + radeon_vm_unbind_locked(rdev, vm); + } + rdev->vm_manager.funcs->fini(rdev); + radeon_mutex_unlock(&rdev->cs_mutex); + return radeon_sa_bo_manager_suspend(rdev, &rdev->vm_manager.sa_manager); +} + +/* cs mutex must be lock */ +void radeon_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm) +{ + mutex_lock(&vm->mutex); + radeon_vm_unbind_locked(rdev, vm); + mutex_unlock(&vm->mutex); +} + +/* cs mutex must be lock & vm mutex must be lock */ +int radeon_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm) +{ + struct radeon_vm *vm_evict; + unsigned i; + int id = -1, r; + + if (vm == NULL) { + return -EINVAL; + } + + if (vm->id != -1) { + /* update lru */ + list_del_init(&vm->list); + list_add_tail(&vm->list, &rdev->vm_manager.lru_vm); + return 0; + } + +retry: + r = radeon_sa_bo_new(rdev, &rdev->vm_manager.sa_manager, &vm->sa_bo, + RADEON_GPU_PAGE_ALIGN(vm->last_pfn * 8), + RADEON_GPU_PAGE_SIZE); + if (r) { + if (list_empty(&rdev->vm_manager.lru_vm)) { + return r; + } + vm_evict = list_first_entry(&rdev->vm_manager.lru_vm, struct radeon_vm, list); + radeon_vm_unbind(rdev, vm_evict); + goto retry; + } + vm->pt = rdev->vm_manager.sa_manager.cpu_ptr; + vm->pt += (vm->sa_bo.offset >> 3); + vm->pt_gpu_addr = rdev->vm_manager.sa_manager.gpu_addr; + vm->pt_gpu_addr += vm->sa_bo.offset; + memset(vm->pt, 0, RADEON_GPU_PAGE_ALIGN(vm->last_pfn * 8)); + +retry_id: + /* search for free vm */ + for (i = 0; i < rdev->vm_manager.nvm; i++) { + if (!(rdev->vm_manager.use_bitmap & (1 << i))) { + id = i; + break; + } + } + /* evict vm if necessary */ + if (id == -1) { + vm_evict = list_first_entry(&rdev->vm_manager.lru_vm, struct radeon_vm, list); + radeon_vm_unbind(rdev, vm_evict); + goto retry_id; + } + + /* do hw bind */ + r = rdev->vm_manager.funcs->bind(rdev, vm, id); + if (r) { + radeon_sa_bo_free(rdev, &vm->sa_bo); + return r; + } + rdev->vm_manager.use_bitmap |= 1 << id; + vm->id = id; + list_add_tail(&vm->list, &rdev->vm_manager.lru_vm); + return radeon_vm_bo_update_pte(rdev, vm, rdev->ib_pool.sa_manager.bo, + &rdev->ib_pool.sa_manager.bo->tbo.mem); +} + +/* object have to be reserved */ +int radeon_vm_bo_add(struct radeon_device *rdev, + struct radeon_vm *vm, + struct radeon_bo *bo, + uint64_t offset, + uint32_t flags) +{ + struct radeon_bo_va *bo_va, *tmp; + struct list_head *head; + uint64_t size = radeon_bo_size(bo), last_offset = 0; + unsigned last_pfn; + + bo_va = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL); + if (bo_va == NULL) { + return -ENOMEM; + } + bo_va->vm = vm; + bo_va->bo = bo; + bo_va->soffset = offset; + bo_va->eoffset = offset + size; + bo_va->flags = flags; + bo_va->valid = false; + INIT_LIST_HEAD(&bo_va->bo_list); + INIT_LIST_HEAD(&bo_va->vm_list); + /* make sure object fit at this offset */ + if (bo_va->soffset >= bo_va->eoffset) { + kfree(bo_va); + return -EINVAL; + } + + last_pfn = bo_va->eoffset / RADEON_GPU_PAGE_SIZE; + if (last_pfn > rdev->vm_manager.max_pfn) { + kfree(bo_va); + dev_err(rdev->dev, "va above limit (0x%08X > 0x%08X)\n", + last_pfn, rdev->vm_manager.max_pfn); + return -EINVAL; + } + + mutex_lock(&vm->mutex); + if (last_pfn > vm->last_pfn) { + /* grow va space 32M by 32M */ + unsigned align = ((32 << 20) >> 12) - 1; + radeon_mutex_lock(&rdev->cs_mutex); + radeon_vm_unbind_locked(rdev, vm); + radeon_mutex_unlock(&rdev->cs_mutex); + vm->last_pfn = (last_pfn + align) & ~align; + } + head = &vm->va; + last_offset = 0; + list_for_each_entry(tmp, &vm->va, vm_list) { + if (bo_va->soffset >= last_offset && bo_va->eoffset < tmp->soffset) { + /* bo can be added before this one */ + break; + } + if (bo_va->soffset >= tmp->soffset && bo_va->soffset < tmp->eoffset) { + /* bo and tmp overlap, invalid offset */ + kfree(bo_va); + dev_err(rdev->dev, "bo %p va 0x%08X conflict with (bo %p 0x%08X 0x%08X)\n", + bo, (unsigned)bo_va->soffset, tmp->bo, + (unsigned)tmp->soffset, (unsigned)tmp->eoffset); + mutex_unlock(&vm->mutex); + return -EINVAL; + } + last_offset = tmp->eoffset; + head = &tmp->vm_list; + } + list_add(&bo_va->vm_list, head); + list_add_tail(&bo_va->bo_list, &bo->va); + mutex_unlock(&vm->mutex); + return 0; +} + +static u64 radeon_vm_get_addr(struct radeon_device *rdev, + struct ttm_mem_reg *mem, + unsigned pfn) +{ + u64 addr = 0; + + switch (mem->mem_type) { + case TTM_PL_VRAM: + addr = (mem->start << PAGE_SHIFT); + addr += pfn * RADEON_GPU_PAGE_SIZE; + addr += rdev->vm_manager.vram_base_offset; + break; + case TTM_PL_TT: + /* offset inside page table */ + addr = mem->start << PAGE_SHIFT; + addr += pfn * RADEON_GPU_PAGE_SIZE; + addr = addr >> PAGE_SHIFT; + /* page table offset */ + addr = rdev->gart.pages_addr[addr]; + /* in case cpu page size != gpu page size*/ + addr += (pfn * RADEON_GPU_PAGE_SIZE) & (~PAGE_MASK); + break; + default: + break; + } + return addr; +} + +/* object have to be reserved & cs mutex took & vm mutex took */ +int radeon_vm_bo_update_pte(struct radeon_device *rdev, + struct radeon_vm *vm, + struct radeon_bo *bo, + struct ttm_mem_reg *mem) +{ + struct radeon_bo_va *bo_va; + unsigned ngpu_pages, i; + uint64_t addr = 0, pfn; + uint32_t flags; + + /* nothing to do if vm isn't bound */ + if (vm->id == -1) + return 0;; + + bo_va = radeon_bo_va(bo, vm); + if (bo_va == NULL) { + dev_err(rdev->dev, "bo %p not in vm %p\n", bo, vm); + return -EINVAL; + } + + if (bo_va->valid) + return 0; + + ngpu_pages = radeon_bo_ngpu_pages(bo); + bo_va->flags &= ~RADEON_VM_PAGE_VALID; + bo_va->flags &= ~RADEON_VM_PAGE_SYSTEM; + if (mem) { + if (mem->mem_type != TTM_PL_SYSTEM) { + bo_va->flags |= RADEON_VM_PAGE_VALID; + bo_va->valid = true; + } + if (mem->mem_type == TTM_PL_TT) { + bo_va->flags |= RADEON_VM_PAGE_SYSTEM; + } + } + pfn = bo_va->soffset / RADEON_GPU_PAGE_SIZE; + flags = rdev->vm_manager.funcs->page_flags(rdev, bo_va->vm, bo_va->flags); + for (i = 0, addr = 0; i < ngpu_pages; i++) { + if (mem && bo_va->valid) { + addr = radeon_vm_get_addr(rdev, mem, i); + } + rdev->vm_manager.funcs->set_page(rdev, bo_va->vm, i + pfn, addr, flags); + } + rdev->vm_manager.funcs->tlb_flush(rdev, bo_va->vm); + return 0; +} + +/* object have to be reserved */ +int radeon_vm_bo_rmv(struct radeon_device *rdev, + struct radeon_vm *vm, + struct radeon_bo *bo) +{ + struct radeon_bo_va *bo_va; + + bo_va = radeon_bo_va(bo, vm); + if (bo_va == NULL) + return 0; + + list_del(&bo_va->bo_list); + mutex_lock(&vm->mutex); + radeon_mutex_lock(&rdev->cs_mutex); + radeon_vm_bo_update_pte(rdev, vm, bo, NULL); + radeon_mutex_unlock(&rdev->cs_mutex); + list_del(&bo_va->vm_list); + mutex_lock(&vm->mutex); + + kfree(bo_va); + return 0; +} + +void radeon_vm_bo_invalidate(struct radeon_device *rdev, + struct radeon_bo *bo) +{ + struct radeon_bo_va *bo_va; + + BUG_ON(!atomic_read(&bo->tbo.reserved)); + list_for_each_entry(bo_va, &bo->va, bo_list) { + bo_va->valid = false; + } +} + +int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm) +{ + int r; + + vm->id = -1; + vm->fence = NULL; + mutex_init(&vm->mutex); + INIT_LIST_HEAD(&vm->list); + INIT_LIST_HEAD(&vm->va); + vm->last_pfn = 0; + /* map the ib pool buffer at 0 in virtual address space, set + * read only + */ + r = radeon_vm_bo_add(rdev, vm, rdev->ib_pool.sa_manager.bo, 0, + RADEON_VM_PAGE_READABLE | RADEON_VM_PAGE_SNOOPED); + return r; +} + +void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm) +{ + struct radeon_bo_va *bo_va, *tmp; + int r; + + mutex_lock(&vm->mutex); + + radeon_mutex_lock(&rdev->cs_mutex); + radeon_vm_unbind_locked(rdev, vm); + radeon_mutex_unlock(&rdev->cs_mutex); + + /* remove all bo */ + r = radeon_bo_reserve(rdev->ib_pool.sa_manager.bo, false); + if (!r) { + bo_va = radeon_bo_va(rdev->ib_pool.sa_manager.bo, vm); + list_del_init(&bo_va->bo_list); + list_del_init(&bo_va->vm_list); + radeon_bo_unreserve(rdev->ib_pool.sa_manager.bo); + kfree(bo_va); + } + if (!list_empty(&vm->va)) { + dev_err(rdev->dev, "still active bo inside vm\n"); + } + list_for_each_entry_safe(bo_va, tmp, &vm->va, vm_list) { + list_del_init(&bo_va->vm_list); + r = radeon_bo_reserve(bo_va->bo, false); + if (!r) { + list_del_init(&bo_va->bo_list); + radeon_bo_unreserve(bo_va->bo); + kfree(bo_va); + } + } + mutex_unlock(&vm->mutex); +} diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index ae321975283c..003eeec1b688 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -142,6 +142,44 @@ void radeon_gem_fini(struct radeon_device *rdev) radeon_bo_force_delete(rdev); } +/* + * Call from drm_gem_handle_create which appear in both new and open ioctl + * case. + */ +int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) +{ + return 0; +} + +void radeon_gem_object_close(struct drm_gem_object *obj, + struct drm_file *file_priv) +{ + struct radeon_bo *rbo = gem_to_radeon_bo(obj); + struct radeon_device *rdev = rbo->rdev; + struct radeon_fpriv *fpriv = file_priv->driver_priv; + struct radeon_vm *vm = &fpriv->vm; + struct radeon_bo_va *bo_va, *tmp; + + if (rdev->family < CHIP_CAYMAN) { + return; + } + + if (radeon_bo_reserve(rbo, false)) { + return; + } + list_for_each_entry_safe(bo_va, tmp, &rbo->va, bo_list) { + if (bo_va->vm == vm) { + /* remove from this vm address space */ + mutex_lock(&vm->mutex); + list_del(&bo_va->vm_list); + mutex_unlock(&vm->mutex); + list_del(&bo_va->bo_list); + kfree(bo_va); + } + } + radeon_bo_unreserve(rbo); +} + /* * GEM ioctls. @@ -354,6 +392,104 @@ out: return r; } +int radeon_gem_va_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct drm_radeon_gem_va *args = data; + struct drm_gem_object *gobj; + struct radeon_device *rdev = dev->dev_private; + struct radeon_fpriv *fpriv = filp->driver_priv; + struct radeon_bo *rbo; + struct radeon_bo_va *bo_va; + u32 invalid_flags; + int r = 0; + + /* !! DONT REMOVE !! + * We don't support vm_id yet, to be sure we don't have have broken + * userspace, reject anyone trying to use non 0 value thus moving + * forward we can use those fields without breaking existant userspace + */ + if (args->vm_id) { + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + + if (args->offset < RADEON_VA_RESERVED_SIZE) { + dev_err(&dev->pdev->dev, + "offset 0x%lX is in reserved area 0x%X\n", + (unsigned long)args->offset, + RADEON_VA_RESERVED_SIZE); + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + + /* don't remove, we need to enforce userspace to set the snooped flag + * otherwise we will endup with broken userspace and we won't be able + * to enable this feature without adding new interface + */ + invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; + if ((args->flags & invalid_flags)) { + dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n", + args->flags, invalid_flags); + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { + dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n"); + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + + switch (args->operation) { + case RADEON_VA_MAP: + case RADEON_VA_UNMAP: + break; + default: + dev_err(&dev->pdev->dev, "unsupported operation %d\n", + args->operation); + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + args->operation = RADEON_VA_RESULT_ERROR; + return -ENOENT; + } + rbo = gem_to_radeon_bo(gobj); + r = radeon_bo_reserve(rbo, false); + if (r) { + args->operation = RADEON_VA_RESULT_ERROR; + drm_gem_object_unreference_unlocked(gobj); + return r; + } + switch (args->operation) { + case RADEON_VA_MAP: + bo_va = radeon_bo_va(rbo, &fpriv->vm); + if (bo_va) { + args->operation = RADEON_VA_RESULT_VA_EXIST; + args->offset = bo_va->soffset; + goto out; + } + r = radeon_vm_bo_add(rdev, &fpriv->vm, rbo, + args->offset, args->flags); + break; + case RADEON_VA_UNMAP: + r = radeon_vm_bo_rmv(rdev, &fpriv->vm, rbo); + break; + default: + break; + } + args->operation = RADEON_VA_RESULT_OK; + if (r) { + args->operation = RADEON_VA_RESULT_ERROR; + } +out: + radeon_bo_unreserve(rbo); + drm_gem_object_unreference_unlocked(gobj); + return r; +} + int radeon_mode_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args) diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index be2c1224e68a..d3352889a870 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -250,6 +250,18 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) return -EINVAL; } break; + case RADEON_INFO_VA_START: + /* this is where we report if vm is supported or not */ + if (rdev->family < CHIP_CAYMAN) + return -EINVAL; + value = RADEON_VA_RESERVED_SIZE; + break; + case RADEON_INFO_IB_VM_MAX_SIZE: + /* this is where we report if vm is supported or not */ + if (rdev->family < CHIP_CAYMAN) + return -EINVAL; + value = RADEON_IB_VM_MAX_SIZE; + break; default: DRM_DEBUG_KMS("Invalid request %d\n", info->request); return -EINVAL; @@ -270,7 +282,6 @@ int radeon_driver_firstopen_kms(struct drm_device *dev) return 0; } - void radeon_driver_lastclose_kms(struct drm_device *dev) { vga_switcheroo_process_delayed_switch(); @@ -278,12 +289,45 @@ void radeon_driver_lastclose_kms(struct drm_device *dev) int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) { + struct radeon_device *rdev = dev->dev_private; + + file_priv->driver_priv = NULL; + + /* new gpu have virtual address space support */ + if (rdev->family >= CHIP_CAYMAN) { + struct radeon_fpriv *fpriv; + int r; + + fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL); + if (unlikely(!fpriv)) { + return -ENOMEM; + } + + r = radeon_vm_init(rdev, &fpriv->vm); + if (r) { + radeon_vm_fini(rdev, &fpriv->vm); + kfree(fpriv); + return r; + } + + file_priv->driver_priv = fpriv; + } return 0; } void radeon_driver_postclose_kms(struct drm_device *dev, struct drm_file *file_priv) { + struct radeon_device *rdev = dev->dev_private; + + /* new gpu have virtual address space support */ + if (rdev->family >= CHIP_CAYMAN && file_priv->driver_priv) { + struct radeon_fpriv *fpriv = file_priv->driver_priv; + + radeon_vm_fini(rdev, &fpriv->vm); + kfree(fpriv); + file_priv->driver_priv = NULL; + } } void radeon_driver_preclose_kms(struct drm_device *dev, @@ -451,5 +495,6 @@ struct drm_ioctl_desc radeon_ioctls_kms[] = { DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED), + DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_UNLOCKED), }; int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms); diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 695b4800329a..d45df1763598 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -46,6 +46,20 @@ static void radeon_bo_clear_surface_reg(struct radeon_bo *bo); * function are calling it. */ +void radeon_bo_clear_va(struct radeon_bo *bo) +{ + struct radeon_bo_va *bo_va, *tmp; + + list_for_each_entry_safe(bo_va, tmp, &bo->va, bo_list) { + /* remove from all vm address space */ + mutex_lock(&bo_va->vm->mutex); + list_del(&bo_va->vm_list); + mutex_unlock(&bo_va->vm->mutex); + list_del(&bo_va->bo_list); + kfree(bo_va); + } +} + static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo) { struct radeon_bo *bo; @@ -55,6 +69,7 @@ static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo) list_del_init(&bo->list); mutex_unlock(&bo->rdev->gem.mutex); radeon_bo_clear_surface_reg(bo); + radeon_bo_clear_va(bo); drm_gem_object_release(&bo->gem_base); kfree(bo); } @@ -134,6 +149,7 @@ retry: bo->gem_base.driver_private = NULL; bo->surface_reg = -1; INIT_LIST_HEAD(&bo->list); + INIT_LIST_HEAD(&bo->va); radeon_ttm_placement_from_domain(bo, domain); /* Kernel allocation are uninterruptible */ mutex_lock(&rdev->vram_mutex); @@ -487,6 +503,7 @@ void radeon_bo_move_notify(struct ttm_buffer_object *bo, return; rbo = container_of(bo, struct radeon_bo, tbo); radeon_bo_check_tiling(rbo, 0, 1); + radeon_vm_bo_invalidate(rbo->rdev, rbo); } int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo) @@ -560,3 +577,16 @@ int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait) } return 0; } + +/* object have to be reserved */ +struct radeon_bo_va *radeon_bo_va(struct radeon_bo *rbo, struct radeon_vm *vm) +{ + struct radeon_bo_va *bo_va; + + list_for_each_entry(bo_va, &rbo->va, bo_list) { + if (bo_va->vm == vm) { + return bo_va; + } + } + return NULL; +} diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h index cc236fb128ae..cde430308870 100644 --- a/drivers/gpu/drm/radeon/radeon_object.h +++ b/drivers/gpu/drm/radeon/radeon_object.h @@ -83,6 +83,16 @@ static inline bool radeon_bo_is_reserved(struct radeon_bo *bo) return !!atomic_read(&bo->tbo.reserved); } +static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo) +{ + return (bo->tbo.num_pages << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE; +} + +static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo) +{ + return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE; +} + /** * radeon_bo_mmap_offset - return mmap offset of bo * @bo: radeon object for which we query the offset @@ -128,6 +138,8 @@ extern void radeon_bo_move_notify(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem); extern int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo); extern int radeon_bo_get_surface_reg(struct radeon_bo *bo); +extern struct radeon_bo_va *radeon_bo_va(struct radeon_bo *rbo, + struct radeon_vm *vm); /* * sub allocation diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c index 465fb34c197b..e8bc70933d1b 100644 --- a/drivers/gpu/drm/radeon/radeon_ring.c +++ b/drivers/gpu/drm/radeon/radeon_ring.c @@ -132,6 +132,7 @@ retry: (*ib)->gpu_addr = rdev->ib_pool.sa_manager.gpu_addr; (*ib)->gpu_addr += (*ib)->sa_bo.offset; (*ib)->fence = fence; + (*ib)->vm_id = 0; /* ib are most likely to be allocated in a ring fashion * thus rdev->ib_pool.head_id should be the id of the * oldest ib diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h index be94be6d6f17..d7079f42624b 100644 --- a/include/drm/radeon_drm.h +++ b/include/drm/radeon_drm.h @@ -509,6 +509,7 @@ typedef struct { #define DRM_RADEON_GEM_SET_TILING 0x28 #define DRM_RADEON_GEM_GET_TILING 0x29 #define DRM_RADEON_GEM_BUSY 0x2a +#define DRM_RADEON_GEM_VA 0x2b #define DRM_IOCTL_RADEON_CP_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_RADEON_CP_INIT, drm_radeon_init_t) #define DRM_IOCTL_RADEON_CP_START DRM_IO( DRM_COMMAND_BASE + DRM_RADEON_CP_START) @@ -550,6 +551,7 @@ typedef struct { #define DRM_IOCTL_RADEON_GEM_SET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_SET_TILING, struct drm_radeon_gem_set_tiling) #define DRM_IOCTL_RADEON_GEM_GET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_GET_TILING, struct drm_radeon_gem_get_tiling) #define DRM_IOCTL_RADEON_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_BUSY, struct drm_radeon_gem_busy) +#define DRM_IOCTL_RADEON_GEM_VA DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_VA, struct drm_radeon_gem_va) typedef struct drm_radeon_init { enum { @@ -872,12 +874,42 @@ struct drm_radeon_gem_pwrite { uint64_t data_ptr; }; +#define RADEON_VA_MAP 1 +#define RADEON_VA_UNMAP 2 + +#define RADEON_VA_RESULT_OK 0 +#define RADEON_VA_RESULT_ERROR 1 +#define RADEON_VA_RESULT_VA_EXIST 2 + +#define RADEON_VM_PAGE_VALID (1 << 0) +#define RADEON_VM_PAGE_READABLE (1 << 1) +#define RADEON_VM_PAGE_WRITEABLE (1 << 2) +#define RADEON_VM_PAGE_SYSTEM (1 << 3) +#define RADEON_VM_PAGE_SNOOPED (1 << 4) + +struct drm_radeon_gem_va { + uint32_t handle; + uint32_t operation; + uint32_t vm_id; + uint32_t flags; + uint64_t offset; +}; + #define RADEON_CHUNK_ID_RELOCS 0x01 #define RADEON_CHUNK_ID_IB 0x02 #define RADEON_CHUNK_ID_FLAGS 0x03 /* The first dword of RADEON_CHUNK_ID_FLAGS is a uint32 of these flags: */ #define RADEON_CS_KEEP_TILING_FLAGS 0x01 +#define RADEON_CS_USE_VM 0x02 +/* The second dword of RADEON_CHUNK_ID_FLAGS is a uint32 that sets the ring type */ +#define RADEON_CS_RING_GFX 0 +#define RADEON_CS_RING_COMPUTE 1 +/* The third dword of RADEON_CHUNK_ID_FLAGS is a sint32 that sets the priority */ +/* 0 = normal, + = higher priority, - = lower priority */ +struct drm_radeon_cs_ring_priority { + int32_t priority; +}; struct drm_radeon_cs_chunk { uint32_t chunk_id; @@ -916,6 +948,10 @@ struct drm_radeon_cs { #define RADEON_INFO_NUM_TILE_PIPES 0x0b /* tile pipes for r600+ */ #define RADEON_INFO_FUSION_GART_WORKING 0x0c /* fusion writes to GTT were broken before this */ #define RADEON_INFO_BACKEND_MAP 0x0d /* pipe to backend map, needed by mesa */ +/* virtual address start, va < start are reserved by the kernel */ +#define RADEON_INFO_VA_START 0x0e +/* maximum size of ib using the virtual memory cs */ +#define RADEON_INFO_IB_VM_MAX_SIZE 0x0f struct drm_radeon_info { uint32_t request; |