diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/cik.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/cik.c | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index e448ae2230e6..a4e1b958f036 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -33,6 +33,7 @@ extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save); extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save); +extern void si_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc); /* * Core functions @@ -1387,3 +1388,363 @@ int cik_asic_reset(struct radeon_device *rdev) return cik_gfx_gpu_soft_reset(rdev); } + +/* MC */ +/** + * cik_mc_program - program the GPU memory controller + * + * @rdev: radeon_device pointer + * + * Set the location of vram, gart, and AGP in the GPU's + * physical address space (CIK). + */ +static void cik_mc_program(struct radeon_device *rdev) +{ + struct evergreen_mc_save save; + u32 tmp; + int i, j; + + /* Initialize HDP */ + for (i = 0, j = 0; i < 32; i++, j += 0x18) { + WREG32((0x2c14 + j), 0x00000000); + WREG32((0x2c18 + j), 0x00000000); + WREG32((0x2c1c + j), 0x00000000); + WREG32((0x2c20 + j), 0x00000000); + WREG32((0x2c24 + j), 0x00000000); + } + WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0); + + evergreen_mc_stop(rdev, &save); + if (radeon_mc_wait_for_idle(rdev)) { + dev_warn(rdev->dev, "Wait for MC idle timedout !\n"); + } + /* Lockout access through VGA aperture*/ + WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE); + /* Update configuration */ + WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR, + rdev->mc.vram_start >> 12); + WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR, + rdev->mc.vram_end >> 12); + WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, + rdev->vram_scratch.gpu_addr >> 12); + tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16; + tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF); + WREG32(MC_VM_FB_LOCATION, tmp); + /* XXX double check these! */ + WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8)); + WREG32(HDP_NONSURFACE_INFO, (2 << 7) | (1 << 30)); + WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF); + WREG32(MC_VM_AGP_BASE, 0); + WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF); + WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF); + if (radeon_mc_wait_for_idle(rdev)) { + dev_warn(rdev->dev, "Wait for MC idle timedout !\n"); + } + evergreen_mc_resume(rdev, &save); + /* we need to own VRAM, so turn off the VGA renderer here + * to stop it overwriting our objects */ + rv515_vga_render_disable(rdev); +} + +/** + * cik_mc_init - initialize the memory controller driver params + * + * @rdev: radeon_device pointer + * + * Look up the amount of vram, vram width, and decide how to place + * vram and gart within the GPU's physical address space (CIK). + * Returns 0 for success. + */ +static int cik_mc_init(struct radeon_device *rdev) +{ + u32 tmp; + int chansize, numchan; + + /* Get VRAM informations */ + rdev->mc.vram_is_ddr = true; + tmp = RREG32(MC_ARB_RAMCFG); + if (tmp & CHANSIZE_MASK) { + chansize = 64; + } else { + chansize = 32; + } + tmp = RREG32(MC_SHARED_CHMAP); + switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) { + case 0: + default: + numchan = 1; + break; + case 1: + numchan = 2; + break; + case 2: + numchan = 4; + break; + case 3: + numchan = 8; + break; + case 4: + numchan = 3; + break; + case 5: + numchan = 6; + break; + case 6: + numchan = 10; + break; + case 7: + numchan = 12; + break; + case 8: + numchan = 16; + break; + } + rdev->mc.vram_width = numchan * chansize; + /* Could aper size report 0 ? */ + rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0); + rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0); + /* size in MB on si */ + rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024; + rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024; + rdev->mc.visible_vram_size = rdev->mc.aper_size; + si_vram_gtt_location(rdev, &rdev->mc); + radeon_update_bandwidth_info(rdev); + + return 0; +} + +/* + * GART + * VMID 0 is the physical GPU addresses as used by the kernel. + * VMIDs 1-15 are used for userspace clients and are handled + * by the radeon vm/hsa code. + */ +/** + * cik_pcie_gart_tlb_flush - gart tlb flush callback + * + * @rdev: radeon_device pointer + * + * Flush the TLB for the VMID 0 page table (CIK). + */ +void cik_pcie_gart_tlb_flush(struct radeon_device *rdev) +{ + /* flush hdp cache */ + WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0); + + /* bits 0-15 are the VM contexts0-15 */ + WREG32(VM_INVALIDATE_REQUEST, 0x1); +} + +/** + * cik_pcie_gart_enable - gart enable + * + * @rdev: radeon_device pointer + * + * This sets up the TLBs, programs the page tables for VMID0, + * sets up the hw for VMIDs 1-15 which are allocated on + * demand, and sets up the global locations for the LDS, GDS, + * and GPUVM for FSA64 clients (CIK). + * Returns 0 for success, errors for failure. + */ +static int cik_pcie_gart_enable(struct radeon_device *rdev) +{ + int r, i; + + if (rdev->gart.robj == NULL) { + dev_err(rdev->dev, "No VRAM object for PCIE GART.\n"); + return -EINVAL; + } + r = radeon_gart_table_vram_pin(rdev); + if (r) + return r; + radeon_gart_restore(rdev); + /* Setup TLB control */ + WREG32(MC_VM_MX_L1_TLB_CNTL, + (0xA << 7) | + ENABLE_L1_TLB | + 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 | + ENABLE_L2_FRAGMENT_PROCESSING | + ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE | + ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE | + EFFECTIVE_L2_QUEUE_SIZE(7) | + CONTEXT1_IDENTITY_ACCESS_MODE(1)); + WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE); + WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY | + L2_CACHE_BIGK_FRAGMENT_SIZE(6)); + /* setup context0 */ + WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12); + WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12); + WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, + (u32)(rdev->dummy_page.addr >> 12)); + WREG32(VM_CONTEXT0_CNTL2, 0); + WREG32(VM_CONTEXT0_CNTL, (ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) | + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT)); + + WREG32(0x15D4, 0); + WREG32(0x15D8, 0); + WREG32(0x15DC, 0); + + /* empty context1-15 */ + /* FIXME start with 4G, once using 2 level pt switch to full + * vm size space + */ + /* set vm size, must be a multiple of 4 */ + WREG32(VM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); + WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, rdev->vm_manager.max_pfn); + for (i = 1; i < 16; i++) { + if (i < 8) + WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2), + rdev->gart.table_addr >> 12); + else + WREG32(VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((i - 8) << 2), + rdev->gart.table_addr >> 12); + } + + /* enable context1-15 */ + WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR, + (u32)(rdev->dummy_page.addr >> 12)); + WREG32(VM_CONTEXT1_CNTL2, 0); + WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(1) | + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT); + + /* TC cache setup ??? */ + WREG32(TC_CFG_L1_LOAD_POLICY0, 0); + WREG32(TC_CFG_L1_LOAD_POLICY1, 0); + WREG32(TC_CFG_L1_STORE_POLICY, 0); + + WREG32(TC_CFG_L2_LOAD_POLICY0, 0); + WREG32(TC_CFG_L2_LOAD_POLICY1, 0); + WREG32(TC_CFG_L2_STORE_POLICY0, 0); + WREG32(TC_CFG_L2_STORE_POLICY1, 0); + WREG32(TC_CFG_L2_ATOMIC_POLICY, 0); + + WREG32(TC_CFG_L1_VOLATILE, 0); + WREG32(TC_CFG_L2_VOLATILE, 0); + + if (rdev->family == CHIP_KAVERI) { + u32 tmp = RREG32(CHUB_CONTROL); + tmp &= ~BYPASS_VM; + WREG32(CHUB_CONTROL, tmp); + } + + /* XXX SH_MEM regs */ + /* where to put LDS, scratch, GPUVM in FSA64 space */ + for (i = 0; i < 16; i++) { + WREG32(SRBM_GFX_CNTL, VMID(i)); + WREG32(SH_MEM_CONFIG, 0); + WREG32(SH_MEM_APE1_BASE, 1); + WREG32(SH_MEM_APE1_LIMIT, 0); + WREG32(SH_MEM_BASES, 0); + } + WREG32(SRBM_GFX_CNTL, 0); + + cik_pcie_gart_tlb_flush(rdev); + DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", + (unsigned)(rdev->mc.gtt_size >> 20), + (unsigned long long)rdev->gart.table_addr); + rdev->gart.ready = true; + return 0; +} + +/** + * cik_pcie_gart_disable - gart disable + * + * @rdev: radeon_device pointer + * + * This disables all VM page table (CIK). + */ +static void cik_pcie_gart_disable(struct radeon_device *rdev) +{ + /* Disable all tables */ + WREG32(VM_CONTEXT0_CNTL, 0); + WREG32(VM_CONTEXT1_CNTL, 0); + /* Setup TLB control */ + WREG32(MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE_NOT_IN_SYS | + SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU); + /* Setup L2 cache */ + WREG32(VM_L2_CNTL, + ENABLE_L2_FRAGMENT_PROCESSING | + ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE | + ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE | + EFFECTIVE_L2_QUEUE_SIZE(7) | + CONTEXT1_IDENTITY_ACCESS_MODE(1)); + WREG32(VM_L2_CNTL2, 0); + WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY | + L2_CACHE_BIGK_FRAGMENT_SIZE(6)); + radeon_gart_table_vram_unpin(rdev); +} + +/** + * cik_pcie_gart_fini - vm fini callback + * + * @rdev: radeon_device pointer + * + * Tears down the driver GART/VM setup (CIK). + */ +static void cik_pcie_gart_fini(struct radeon_device *rdev) +{ + cik_pcie_gart_disable(rdev); + radeon_gart_table_vram_free(rdev); + radeon_gart_fini(rdev); +} + +/* vm parser */ +/** + * cik_ib_parse - vm ib_parse callback + * + * @rdev: radeon_device pointer + * @ib: indirect buffer pointer + * + * CIK uses hw IB checking so this is a nop (CIK). + */ +int cik_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib) +{ + return 0; +} + +/* + * vm + * VMID 0 is the physical GPU addresses as used by the kernel. + * VMIDs 1-15 are used for userspace clients and are handled + * by the radeon vm/hsa code. + */ +/** + * cik_vm_init - cik vm init callback + * + * @rdev: radeon_device pointer + * + * Inits cik specific vm parameters (number of VMs, base of vram for + * VMIDs 1-15) (CIK). + * Returns 0 for success. + */ +int cik_vm_init(struct radeon_device *rdev) +{ + /* number of VMs */ + rdev->vm_manager.nvm = 16; + /* base offset of vram pages */ + if (rdev->flags & RADEON_IS_IGP) { + u64 tmp = RREG32(MC_VM_FB_OFFSET); + tmp <<= 22; + rdev->vm_manager.vram_base_offset = tmp; + } else + rdev->vm_manager.vram_base_offset = 0; + + return 0; +} + +/** + * cik_vm_fini - cik vm fini callback + * + * @rdev: radeon_device pointer + * + * Tear down any asic specific VM setup (CIK). + */ +void cik_vm_fini(struct radeon_device *rdev) +{ +} + |