| /* |
| * Copyright 2008 Advanced Micro Devices, Inc. |
| * Copyright 2008 Red Hat Inc. |
| * Copyright 2009 Jerome Glisse. |
| * |
| * 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, sublicense, |
| * 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 above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. |
| * |
| * Authors: Dave Airlie |
| * Alex Deucher |
| * Jerome Glisse |
| */ |
| #include <linux/console.h> |
| #include <linux/slab.h> |
| #include <drm/drmP.h> |
| #include <drm/drm_crtc_helper.h> |
| #include <drm/radeon_drm.h> |
| #include <linux/vgaarb.h> |
| #include <linux/vga_switcheroo.h> |
| #include <linux/efi.h> |
| #include "radeon_reg.h" |
| #include "radeon.h" |
| #include "atom.h" |
| |
| static const char radeon_family_name[][16] = { |
| "R100", |
| "RV100", |
| "RS100", |
| "RV200", |
| "RS200", |
| "R200", |
| "RV250", |
| "RS300", |
| "RV280", |
| "R300", |
| "R350", |
| "RV350", |
| "RV380", |
| "R420", |
| "R423", |
| "RV410", |
| "RS400", |
| "RS480", |
| "RS600", |
| "RS690", |
| "RS740", |
| "RV515", |
| "R520", |
| "RV530", |
| "RV560", |
| "RV570", |
| "R580", |
| "R600", |
| "RV610", |
| "RV630", |
| "RV670", |
| "RV620", |
| "RV635", |
| "RS780", |
| "RS880", |
| "RV770", |
| "RV730", |
| "RV710", |
| "RV740", |
| "CEDAR", |
| "REDWOOD", |
| "JUNIPER", |
| "CYPRESS", |
| "HEMLOCK", |
| "PALM", |
| "SUMO", |
| "SUMO2", |
| "BARTS", |
| "TURKS", |
| "CAICOS", |
| "CAYMAN", |
| "ARUBA", |
| "TAHITI", |
| "PITCAIRN", |
| "VERDE", |
| "OLAND", |
| "HAINAN", |
| "BONAIRE", |
| "KAVERI", |
| "KABINI", |
| "HAWAII", |
| "LAST", |
| }; |
| |
| #if defined(CONFIG_VGA_SWITCHEROO) |
| bool radeon_is_px(void); |
| #else |
| static inline bool radeon_is_px(void) { return false; } |
| #endif |
| |
| /** |
| * radeon_program_register_sequence - program an array of registers. |
| * |
| * @rdev: radeon_device pointer |
| * @registers: pointer to the register array |
| * @array_size: size of the register array |
| * |
| * Programs an array or registers with and and or masks. |
| * This is a helper for setting golden registers. |
| */ |
| void radeon_program_register_sequence(struct radeon_device *rdev, |
| const u32 *registers, |
| const u32 array_size) |
| { |
| u32 tmp, reg, and_mask, or_mask; |
| int i; |
| |
| if (array_size % 3) |
| return; |
| |
| for (i = 0; i < array_size; i +=3) { |
| reg = registers[i + 0]; |
| and_mask = registers[i + 1]; |
| or_mask = registers[i + 2]; |
| |
| if (and_mask == 0xffffffff) { |
| tmp = or_mask; |
| } else { |
| tmp = RREG32(reg); |
| tmp &= ~and_mask; |
| tmp |= or_mask; |
| } |
| WREG32(reg, tmp); |
| } |
| } |
| |
| /** |
| * radeon_surface_init - Clear GPU surface registers. |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Clear GPU surface registers (r1xx-r5xx). |
| */ |
| void radeon_surface_init(struct radeon_device *rdev) |
| { |
| /* FIXME: check this out */ |
| if (rdev->family < CHIP_R600) { |
| int i; |
| |
| for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) { |
| if (rdev->surface_regs[i].bo) |
| radeon_bo_get_surface_reg(rdev->surface_regs[i].bo); |
| else |
| radeon_clear_surface_reg(rdev, i); |
| } |
| /* enable surfaces */ |
| WREG32(RADEON_SURFACE_CNTL, 0); |
| } |
| } |
| |
| /* |
| * GPU scratch registers helpers function. |
| */ |
| /** |
| * radeon_scratch_init - Init scratch register driver information. |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Init CP scratch register driver information (r1xx-r5xx) |
| */ |
| void radeon_scratch_init(struct radeon_device *rdev) |
| { |
| int i; |
| |
| /* FIXME: check this out */ |
| if (rdev->family < CHIP_R300) { |
| rdev->scratch.num_reg = 5; |
| } else { |
| rdev->scratch.num_reg = 7; |
| } |
| rdev->scratch.reg_base = RADEON_SCRATCH_REG0; |
| for (i = 0; i < rdev->scratch.num_reg; i++) { |
| rdev->scratch.free[i] = true; |
| rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4); |
| } |
| } |
| |
| /** |
| * radeon_scratch_get - Allocate a scratch register |
| * |
| * @rdev: radeon_device pointer |
| * @reg: scratch register mmio offset |
| * |
| * Allocate a CP scratch register for use by the driver (all asics). |
| * Returns 0 on success or -EINVAL on failure. |
| */ |
| int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg) |
| { |
| int i; |
| |
| for (i = 0; i < rdev->scratch.num_reg; i++) { |
| if (rdev->scratch.free[i]) { |
| rdev->scratch.free[i] = false; |
| *reg = rdev->scratch.reg[i]; |
| return 0; |
| } |
| } |
| return -EINVAL; |
| } |
| |
| /** |
| * radeon_scratch_free - Free a scratch register |
| * |
| * @rdev: radeon_device pointer |
| * @reg: scratch register mmio offset |
| * |
| * Free a CP scratch register allocated for use by the driver (all asics) |
| */ |
| void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg) |
| { |
| int i; |
| |
| for (i = 0; i < rdev->scratch.num_reg; i++) { |
| if (rdev->scratch.reg[i] == reg) { |
| rdev->scratch.free[i] = true; |
| return; |
| } |
| } |
| } |
| |
| /* |
| * GPU doorbell aperture helpers function. |
| */ |
| /** |
| * radeon_doorbell_init - Init doorbell driver information. |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Init doorbell driver information (CIK) |
| * Returns 0 on success, error on failure. |
| */ |
| int radeon_doorbell_init(struct radeon_device *rdev) |
| { |
| /* doorbell bar mapping */ |
| rdev->doorbell.base = pci_resource_start(rdev->pdev, 2); |
| rdev->doorbell.size = pci_resource_len(rdev->pdev, 2); |
| |
| rdev->doorbell.num_doorbells = min_t(u32, rdev->doorbell.size / sizeof(u32), RADEON_MAX_DOORBELLS); |
| if (rdev->doorbell.num_doorbells == 0) |
| return -EINVAL; |
| |
| rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.num_doorbells * sizeof(u32)); |
| if (rdev->doorbell.ptr == NULL) { |
| return -ENOMEM; |
| } |
| DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)rdev->doorbell.base); |
| DRM_INFO("doorbell mmio size: %u\n", (unsigned)rdev->doorbell.size); |
| |
| memset(&rdev->doorbell.used, 0, sizeof(rdev->doorbell.used)); |
| |
| return 0; |
| } |
| |
| /** |
| * radeon_doorbell_fini - Tear down doorbell driver information. |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Tear down doorbell driver information (CIK) |
| */ |
| void radeon_doorbell_fini(struct radeon_device *rdev) |
| { |
| iounmap(rdev->doorbell.ptr); |
| rdev->doorbell.ptr = NULL; |
| } |
| |
| /** |
| * radeon_doorbell_get - Allocate a doorbell entry |
| * |
| * @rdev: radeon_device pointer |
| * @doorbell: doorbell index |
| * |
| * Allocate a doorbell for use by the driver (all asics). |
| * Returns 0 on success or -EINVAL on failure. |
| */ |
| int radeon_doorbell_get(struct radeon_device *rdev, u32 *doorbell) |
| { |
| unsigned long offset = find_first_zero_bit(rdev->doorbell.used, rdev->doorbell.num_doorbells); |
| if (offset < rdev->doorbell.num_doorbells) { |
| __set_bit(offset, rdev->doorbell.used); |
| *doorbell = offset; |
| return 0; |
| } else { |
| return -EINVAL; |
| } |
| } |
| |
| /** |
| * radeon_doorbell_free - Free a doorbell entry |
| * |
| * @rdev: radeon_device pointer |
| * @doorbell: doorbell index |
| * |
| * Free a doorbell allocated for use by the driver (all asics) |
| */ |
| void radeon_doorbell_free(struct radeon_device *rdev, u32 doorbell) |
| { |
| if (doorbell < rdev->doorbell.num_doorbells) |
| __clear_bit(doorbell, rdev->doorbell.used); |
| } |
| |
| /* |
| * radeon_wb_*() |
| * Writeback is the the method by which the the GPU updates special pages |
| * in memory with the status of certain GPU events (fences, ring pointers, |
| * etc.). |
| */ |
| |
| /** |
| * radeon_wb_disable - Disable Writeback |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Disables Writeback (all asics). Used for suspend. |
| */ |
| void radeon_wb_disable(struct radeon_device *rdev) |
| { |
| rdev->wb.enabled = false; |
| } |
| |
| /** |
| * radeon_wb_fini - Disable Writeback and free memory |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Disables Writeback and frees the Writeback memory (all asics). |
| * Used at driver shutdown. |
| */ |
| void radeon_wb_fini(struct radeon_device *rdev) |
| { |
| radeon_wb_disable(rdev); |
| if (rdev->wb.wb_obj) { |
| if (!radeon_bo_reserve(rdev->wb.wb_obj, false)) { |
| radeon_bo_kunmap(rdev->wb.wb_obj); |
| radeon_bo_unpin(rdev->wb.wb_obj); |
| radeon_bo_unreserve(rdev->wb.wb_obj); |
| } |
| radeon_bo_unref(&rdev->wb.wb_obj); |
| rdev->wb.wb = NULL; |
| rdev->wb.wb_obj = NULL; |
| } |
| } |
| |
| /** |
| * radeon_wb_init- Init Writeback driver info and allocate memory |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Disables Writeback and frees the Writeback memory (all asics). |
| * Used at driver startup. |
| * Returns 0 on success or an -error on failure. |
| */ |
| int radeon_wb_init(struct radeon_device *rdev) |
| { |
| int r; |
| |
| if (rdev->wb.wb_obj == NULL) { |
| r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true, |
| RADEON_GEM_DOMAIN_GTT, NULL, &rdev->wb.wb_obj); |
| if (r) { |
| dev_warn(rdev->dev, "(%d) create WB bo failed\n", r); |
| return r; |
| } |
| r = radeon_bo_reserve(rdev->wb.wb_obj, false); |
| if (unlikely(r != 0)) { |
| radeon_wb_fini(rdev); |
| return r; |
| } |
| r = radeon_bo_pin(rdev->wb.wb_obj, RADEON_GEM_DOMAIN_GTT, |
| &rdev->wb.gpu_addr); |
| if (r) { |
| radeon_bo_unreserve(rdev->wb.wb_obj); |
| dev_warn(rdev->dev, "(%d) pin WB bo failed\n", r); |
| radeon_wb_fini(rdev); |
| return r; |
| } |
| r = radeon_bo_kmap(rdev->wb.wb_obj, (void **)&rdev->wb.wb); |
| radeon_bo_unreserve(rdev->wb.wb_obj); |
| if (r) { |
| dev_warn(rdev->dev, "(%d) map WB bo failed\n", r); |
| radeon_wb_fini(rdev); |
| return r; |
| } |
| } |
| |
| /* clear wb memory */ |
| memset((char *)rdev->wb.wb, 0, RADEON_GPU_PAGE_SIZE); |
| /* disable event_write fences */ |
| rdev->wb.use_event = false; |
| /* disabled via module param */ |
| if (radeon_no_wb == 1) { |
| rdev->wb.enabled = false; |
| } else { |
| if (rdev->flags & RADEON_IS_AGP) { |
| /* often unreliable on AGP */ |
| rdev->wb.enabled = false; |
| } else if (rdev->family < CHIP_R300) { |
| /* often unreliable on pre-r300 */ |
| rdev->wb.enabled = false; |
| } else { |
| rdev->wb.enabled = true; |
| /* event_write fences are only available on r600+ */ |
| if (rdev->family >= CHIP_R600) { |
| rdev->wb.use_event = true; |
| } |
| } |
| } |
| /* always use writeback/events on NI, APUs */ |
| if (rdev->family >= CHIP_PALM) { |
| rdev->wb.enabled = true; |
| rdev->wb.use_event = true; |
| } |
| |
| dev_info(rdev->dev, "WB %sabled\n", rdev->wb.enabled ? "en" : "dis"); |
| |
| return 0; |
| } |
| |
| /** |
| * radeon_vram_location - try to find VRAM location |
| * @rdev: radeon device structure holding all necessary informations |
| * @mc: memory controller structure holding memory informations |
| * @base: base address at which to put VRAM |
| * |
| * Function will place try to place VRAM at base address provided |
| * as parameter (which is so far either PCI aperture address or |
| * for IGP TOM base address). |
| * |
| * If there is not enough space to fit the unvisible VRAM in the 32bits |
| * address space then we limit the VRAM size to the aperture. |
| * |
| * If we are using AGP and if the AGP aperture doesn't allow us to have |
| * room for all the VRAM than we restrict the VRAM to the PCI aperture |
| * size and print a warning. |
| * |
| * This function will never fails, worst case are limiting VRAM. |
| * |
| * Note: GTT start, end, size should be initialized before calling this |
| * function on AGP platform. |
| * |
| * Note: We don't explicitly enforce VRAM start to be aligned on VRAM size, |
| * this shouldn't be a problem as we are using the PCI aperture as a reference. |
| * Otherwise this would be needed for rv280, all r3xx, and all r4xx, but |
| * not IGP. |
| * |
| * Note: we use mc_vram_size as on some board we need to program the mc to |
| * cover the whole aperture even if VRAM size is inferior to aperture size |
| * Novell bug 204882 + along with lots of ubuntu ones |
| * |
| * Note: when limiting vram it's safe to overwritte real_vram_size because |
| * we are not in case where real_vram_size is inferior to mc_vram_size (ie |
| * note afected by bogus hw of Novell bug 204882 + along with lots of ubuntu |
| * ones) |
| * |
| * Note: IGP TOM addr should be the same as the aperture addr, we don't |
| * explicitly check for that thought. |
| * |
| * FIXME: when reducing VRAM size align new size on power of 2. |
| */ |
| void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 base) |
| { |
| uint64_t limit = (uint64_t)radeon_vram_limit << 20; |
| |
| mc->vram_start = base; |
| if (mc->mc_vram_size > (rdev->mc.mc_mask - base + 1)) { |
| dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n"); |
| mc->real_vram_size = mc->aper_size; |
| mc->mc_vram_size = mc->aper_size; |
| } |
| mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; |
| if (rdev->flags & RADEON_IS_AGP && mc->vram_end > mc->gtt_start && mc->vram_start <= mc->gtt_end) { |
| dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n"); |
| mc->real_vram_size = mc->aper_size; |
| mc->mc_vram_size = mc->aper_size; |
| } |
| mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; |
| if (limit && limit < mc->real_vram_size) |
| mc->real_vram_size = limit; |
| dev_info(rdev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n", |
| mc->mc_vram_size >> 20, mc->vram_start, |
| mc->vram_end, mc->real_vram_size >> 20); |
| } |
| |
| /** |
| * radeon_gtt_location - try to find GTT location |
| * @rdev: radeon device structure holding all necessary informations |
| * @mc: memory controller structure holding memory informations |
| * |
| * Function will place try to place GTT before or after VRAM. |
| * |
| * If GTT size is bigger than space left then we ajust GTT size. |
| * Thus function will never fails. |
| * |
| * FIXME: when reducing GTT size align new size on power of 2. |
| */ |
| void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) |
| { |
| u64 size_af, size_bf; |
| |
| size_af = ((rdev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align; |
| size_bf = mc->vram_start & ~mc->gtt_base_align; |
| if (size_bf > size_af) { |
| if (mc->gtt_size > size_bf) { |
| dev_warn(rdev->dev, "limiting GTT\n"); |
| mc->gtt_size = size_bf; |
| } |
| mc->gtt_start = (mc->vram_start & ~mc->gtt_base_align) - mc->gtt_size; |
| } else { |
| if (mc->gtt_size > size_af) { |
| dev_warn(rdev->dev, "limiting GTT\n"); |
| mc->gtt_size = size_af; |
| } |
| mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align; |
| } |
| mc->gtt_end = mc->gtt_start + mc->gtt_size - 1; |
| dev_info(rdev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n", |
| mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end); |
| } |
| |
| /* |
| * GPU helpers function. |
| */ |
| /** |
| * radeon_card_posted - check if the hw has already been initialized |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Check if the asic has been initialized (all asics). |
| * Used at driver startup. |
| * Returns true if initialized or false if not. |
| */ |
| bool radeon_card_posted(struct radeon_device *rdev) |
| { |
| uint32_t reg; |
| |
| /* required for EFI mode on macbook2,1 which uses an r5xx asic */ |
| if (efi_enabled(EFI_BOOT) && |
| (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) && |
| (rdev->family < CHIP_R600)) |
| return false; |
| |
| if (ASIC_IS_NODCE(rdev)) |
| goto check_memsize; |
| |
| /* first check CRTCs */ |
| if (ASIC_IS_DCE4(rdev)) { |
| reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) | |
| RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET); |
| if (rdev->num_crtc >= 4) { |
| reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) | |
| RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET); |
| } |
| if (rdev->num_crtc >= 6) { |
| reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) | |
| RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET); |
| } |
| if (reg & EVERGREEN_CRTC_MASTER_EN) |
| return true; |
| } else if (ASIC_IS_AVIVO(rdev)) { |
| reg = RREG32(AVIVO_D1CRTC_CONTROL) | |
| RREG32(AVIVO_D2CRTC_CONTROL); |
| if (reg & AVIVO_CRTC_EN) { |
| return true; |
| } |
| } else { |
| reg = RREG32(RADEON_CRTC_GEN_CNTL) | |
| RREG32(RADEON_CRTC2_GEN_CNTL); |
| if (reg & RADEON_CRTC_EN) { |
| return true; |
| } |
| } |
| |
| check_memsize: |
| /* then check MEM_SIZE, in case the crtcs are off */ |
| if (rdev->family >= CHIP_R600) |
| reg = RREG32(R600_CONFIG_MEMSIZE); |
| else |
| reg = RREG32(RADEON_CONFIG_MEMSIZE); |
| |
| if (reg) |
| return true; |
| |
| return false; |
| |
| } |
| |
| /** |
| * radeon_update_bandwidth_info - update display bandwidth params |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Used when sclk/mclk are switched or display modes are set. |
| * params are used to calculate display watermarks (all asics) |
| */ |
| void radeon_update_bandwidth_info(struct radeon_device *rdev) |
| { |
| fixed20_12 a; |
| u32 sclk = rdev->pm.current_sclk; |
| u32 mclk = rdev->pm.current_mclk; |
| |
| /* sclk/mclk in Mhz */ |
| a.full = dfixed_const(100); |
| rdev->pm.sclk.full = dfixed_const(sclk); |
| rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a); |
| rdev->pm.mclk.full = dfixed_const(mclk); |
| rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a); |
| |
| if (rdev->flags & RADEON_IS_IGP) { |
| a.full = dfixed_const(16); |
| /* core_bandwidth = sclk(Mhz) * 16 */ |
| rdev->pm.core_bandwidth.full = dfixed_div(rdev->pm.sclk, a); |
| } |
| } |
| |
| /** |
| * radeon_boot_test_post_card - check and possibly initialize the hw |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Check if the asic is initialized and if not, attempt to initialize |
| * it (all asics). |
| * Returns true if initialized or false if not. |
| */ |
| bool radeon_boot_test_post_card(struct radeon_device *rdev) |
| { |
| if (radeon_card_posted(rdev)) |
| return true; |
| |
| if (rdev->bios) { |
| DRM_INFO("GPU not posted. posting now...\n"); |
| if (rdev->is_atom_bios) |
| atom_asic_init(rdev->mode_info.atom_context); |
| else |
| radeon_combios_asic_init(rdev->ddev); |
| return true; |
| } else { |
| dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n"); |
| return false; |
| } |
| } |
| |
| /** |
| * radeon_dummy_page_init - init dummy page used by the driver |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Allocate the dummy page used by the driver (all asics). |
| * This dummy page is used by the driver as a filler for gart entries |
| * when pages are taken out of the GART |
| * Returns 0 on sucess, -ENOMEM on failure. |
| */ |
| int radeon_dummy_page_init(struct radeon_device *rdev) |
| { |
| if (rdev->dummy_page.page) |
| return 0; |
| rdev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO); |
| if (rdev->dummy_page.page == NULL) |
| return -ENOMEM; |
| rdev->dummy_page.addr = pci_map_page(rdev->pdev, rdev->dummy_page.page, |
| 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
| if (pci_dma_mapping_error(rdev->pdev, rdev->dummy_page.addr)) { |
| dev_err(&rdev->pdev->dev, "Failed to DMA MAP the dummy page\n"); |
| __free_page(rdev->dummy_page.page); |
| rdev->dummy_page.page = NULL; |
| return -ENOMEM; |
| } |
| return 0; |
| } |
| |
| /** |
| * radeon_dummy_page_fini - free dummy page used by the driver |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Frees the dummy page used by the driver (all asics). |
| */ |
| void radeon_dummy_page_fini(struct radeon_device *rdev) |
| { |
| if (rdev->dummy_page.page == NULL) |
| return; |
| pci_unmap_page(rdev->pdev, rdev->dummy_page.addr, |
| PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
| __free_page(rdev->dummy_page.page); |
| rdev->dummy_page.page = NULL; |
| } |
| |
| |
| /* ATOM accessor methods */ |
| /* |
| * ATOM is an interpreted byte code stored in tables in the vbios. The |
| * driver registers callbacks to access registers and the interpreter |
| * in the driver parses the tables and executes then to program specific |
| * actions (set display modes, asic init, etc.). See radeon_atombios.c, |
| * atombios.h, and atom.c |
| */ |
| |
| /** |
| * cail_pll_read - read PLL register |
| * |
| * @info: atom card_info pointer |
| * @reg: PLL register offset |
| * |
| * Provides a PLL register accessor for the atom interpreter (r4xx+). |
| * Returns the value of the PLL register. |
| */ |
| static uint32_t cail_pll_read(struct card_info *info, uint32_t reg) |
| { |
| struct radeon_device *rdev = info->dev->dev_private; |
| uint32_t r; |
| |
| r = rdev->pll_rreg(rdev, reg); |
| return r; |
| } |
| |
| /** |
| * cail_pll_write - write PLL register |
| * |
| * @info: atom card_info pointer |
| * @reg: PLL register offset |
| * @val: value to write to the pll register |
| * |
| * Provides a PLL register accessor for the atom interpreter (r4xx+). |
| */ |
| static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val) |
| { |
| struct radeon_device *rdev = info->dev->dev_private; |
| |
| rdev->pll_wreg(rdev, reg, val); |
| } |
| |
| /** |
| * cail_mc_read - read MC (Memory Controller) register |
| * |
| * @info: atom card_info pointer |
| * @reg: MC register offset |
| * |
| * Provides an MC register accessor for the atom interpreter (r4xx+). |
| * Returns the value of the MC register. |
| */ |
| static uint32_t cail_mc_read(struct card_info *info, uint32_t reg) |
| { |
| struct radeon_device *rdev = info->dev->dev_private; |
| uint32_t r; |
| |
| r = rdev->mc_rreg(rdev, reg); |
| return r; |
| } |
| |
| /** |
| * cail_mc_write - write MC (Memory Controller) register |
| * |
| * @info: atom card_info pointer |
| * @reg: MC register offset |
| * @val: value to write to the pll register |
| * |
| * Provides a MC register accessor for the atom interpreter (r4xx+). |
| */ |
| static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val) |
| { |
| struct radeon_device *rdev = info->dev->dev_private; |
| |
| rdev->mc_wreg(rdev, reg, val); |
| } |
| |
| /** |
| * cail_reg_write - write MMIO register |
| * |
| * @info: atom card_info pointer |
| * @reg: MMIO register offset |
| * @val: value to write to the pll register |
| * |
| * Provides a MMIO register accessor for the atom interpreter (r4xx+). |
| */ |
| static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val) |
| { |
| struct radeon_device *rdev = info->dev->dev_private; |
| |
| WREG32(reg*4, val); |
| } |
| |
| /** |
| * cail_reg_read - read MMIO register |
| * |
| * @info: atom card_info pointer |
| * @reg: MMIO register offset |
| * |
| * Provides an MMIO register accessor for the atom interpreter (r4xx+). |
| * Returns the value of the MMIO register. |
| */ |
| static uint32_t cail_reg_read(struct card_info *info, uint32_t reg) |
| { |
| struct radeon_device *rdev = info->dev->dev_private; |
| uint32_t r; |
| |
| r = RREG32(reg*4); |
| return r; |
| } |
| |
| /** |
| * cail_ioreg_write - write IO register |
| * |
| * @info: atom card_info pointer |
| * @reg: IO register offset |
| * @val: value to write to the pll register |
| * |
| * Provides a IO register accessor for the atom interpreter (r4xx+). |
| */ |
| static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val) |
| { |
| struct radeon_device *rdev = info->dev->dev_private; |
| |
| WREG32_IO(reg*4, val); |
| } |
| |
| /** |
| * cail_ioreg_read - read IO register |
| * |
| * @info: atom card_info pointer |
| * @reg: IO register offset |
| * |
| * Provides an IO register accessor for the atom interpreter (r4xx+). |
| * Returns the value of the IO register. |
| */ |
| static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg) |
| { |
| struct radeon_device *rdev = info->dev->dev_private; |
| uint32_t r; |
| |
| r = RREG32_IO(reg*4); |
| return r; |
| } |
| |
| /** |
| * radeon_atombios_init - init the driver info and callbacks for atombios |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Initializes the driver info and register access callbacks for the |
| * ATOM interpreter (r4xx+). |
| * Returns 0 on sucess, -ENOMEM on failure. |
| * Called at driver startup. |
| */ |
| int radeon_atombios_init(struct radeon_device *rdev) |
| { |
| struct card_info *atom_card_info = |
| kzalloc(sizeof(struct card_info), GFP_KERNEL); |
| |
| if (!atom_card_info) |
| return -ENOMEM; |
| |
| rdev->mode_info.atom_card_info = atom_card_info; |
| atom_card_info->dev = rdev->ddev; |
| atom_card_info->reg_read = cail_reg_read; |
| atom_card_info->reg_write = cail_reg_write; |
| /* needed for iio ops */ |
| if (rdev->rio_mem) { |
| atom_card_info->ioreg_read = cail_ioreg_read; |
| atom_card_info->ioreg_write = cail_ioreg_write; |
| } else { |
| DRM_ERROR("Unable to find PCI I/O BAR; using MMIO for ATOM IIO\n"); |
| atom_card_info->ioreg_read = cail_reg_read; |
| atom_card_info->ioreg_write = cail_reg_write; |
| } |
| atom_card_info->mc_read = cail_mc_read; |
| atom_card_info->mc_write = cail_mc_write; |
| atom_card_info->pll_read = cail_pll_read; |
| atom_card_info->pll_write = cail_pll_write; |
| |
| rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios); |
| if (!rdev->mode_info.atom_context) { |
| radeon_atombios_fini(rdev); |
| return -ENOMEM; |
| } |
| |
| mutex_init(&rdev->mode_info.atom_context->mutex); |
| radeon_atom_initialize_bios_scratch_regs(rdev->ddev); |
| atom_allocate_fb_scratch(rdev->mode_info.atom_context); |
| return 0; |
| } |
| |
| /** |
| * radeon_atombios_fini - free the driver info and callbacks for atombios |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Frees the driver info and register access callbacks for the ATOM |
| * interpreter (r4xx+). |
| * Called at driver shutdown. |
| */ |
| void radeon_atombios_fini(struct radeon_device *rdev) |
| { |
| if (rdev->mode_info.atom_context) { |
| kfree(rdev->mode_info.atom_context->scratch); |
| } |
| kfree(rdev->mode_info.atom_context); |
| rdev->mode_info.atom_context = NULL; |
| kfree(rdev->mode_info.atom_card_info); |
| rdev->mode_info.atom_card_info = NULL; |
| } |
| |
| /* COMBIOS */ |
| /* |
| * COMBIOS is the bios format prior to ATOM. It provides |
| * command tables similar to ATOM, but doesn't have a unified |
| * parser. See radeon_combios.c |
| */ |
| |
| /** |
| * radeon_combios_init - init the driver info for combios |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Initializes the driver info for combios (r1xx-r3xx). |
| * Returns 0 on sucess. |
| * Called at driver startup. |
| */ |
| int radeon_combios_init(struct radeon_device *rdev) |
| { |
| radeon_combios_initialize_bios_scratch_regs(rdev->ddev); |
| return 0; |
| } |
| |
| /** |
| * radeon_combios_fini - free the driver info for combios |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Frees the driver info for combios (r1xx-r3xx). |
| * Called at driver shutdown. |
| */ |
| void radeon_combios_fini(struct radeon_device *rdev) |
| { |
| } |
| |
| /* if we get transitioned to only one device, take VGA back */ |
| /** |
| * radeon_vga_set_decode - enable/disable vga decode |
| * |
| * @cookie: radeon_device pointer |
| * @state: enable/disable vga decode |
| * |
| * Enable/disable vga decode (all asics). |
| * Returns VGA resource flags. |
| */ |
| static unsigned int radeon_vga_set_decode(void *cookie, bool state) |
| { |
| struct radeon_device *rdev = cookie; |
| radeon_vga_set_state(rdev, state); |
| if (state) |
| return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM | |
| VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM; |
| else |
| return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM; |
| } |
| |
| /** |
| * radeon_check_pot_argument - check that argument is a power of two |
| * |
| * @arg: value to check |
| * |
| * Validates that a certain argument is a power of two (all asics). |
| * Returns true if argument is valid. |
| */ |
| static bool radeon_check_pot_argument(int arg) |
| { |
| return (arg & (arg - 1)) == 0; |
| } |
| |
| /** |
| * radeon_check_arguments - validate module params |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Validates certain module parameters and updates |
| * the associated values used by the driver (all asics). |
| */ |
| static void radeon_check_arguments(struct radeon_device *rdev) |
| { |
| /* vramlimit must be a power of two */ |
| if (!radeon_check_pot_argument(radeon_vram_limit)) { |
| dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n", |
| radeon_vram_limit); |
| radeon_vram_limit = 0; |
| } |
| |
| if (radeon_gart_size == -1) { |
| /* default to a larger gart size on newer asics */ |
| if (rdev->family >= CHIP_RV770) |
| radeon_gart_size = 1024; |
| else |
| radeon_gart_size = 512; |
| } |
| /* gtt size must be power of two and greater or equal to 32M */ |
| if (radeon_gart_size < 32) { |
| dev_warn(rdev->dev, "gart size (%d) too small\n", |
| radeon_gart_size); |
| if (rdev->family >= CHIP_RV770) |
| radeon_gart_size = 1024; |
| else |
| radeon_gart_size = 512; |
| } else if (!radeon_check_pot_argument(radeon_gart_size)) { |
| dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n", |
| radeon_gart_size); |
| if (rdev->family >= CHIP_RV770) |
| radeon_gart_size = 1024; |
| else |
| radeon_gart_size = 512; |
| } |
| rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20; |
| |
| /* AGP mode can only be -1, 1, 2, 4, 8 */ |
| switch (radeon_agpmode) { |
| case -1: |
| case 0: |
| case 1: |
| case 2: |
| case 4: |
| case 8: |
| break; |
| default: |
| dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: " |
| "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode); |
| radeon_agpmode = 0; |
| break; |
| } |
| } |
| |
| /** |
| * radeon_switcheroo_quirk_long_wakeup - return true if longer d3 delay is |
| * needed for waking up. |
| * |
| * @pdev: pci dev pointer |
| */ |
| static bool radeon_switcheroo_quirk_long_wakeup(struct pci_dev *pdev) |
| { |
| |
| /* 6600m in a macbook pro */ |
| if (pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE && |
| pdev->subsystem_device == 0x00e2) { |
| printk(KERN_INFO "radeon: quirking longer d3 wakeup delay\n"); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * radeon_switcheroo_set_state - set switcheroo state |
| * |
| * @pdev: pci dev pointer |
| * @state: vga switcheroo state |
| * |
| * Callback for the switcheroo driver. Suspends or resumes the |
| * the asics before or after it is powered up using ACPI methods. |
| */ |
| static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) |
| { |
| struct drm_device *dev = pci_get_drvdata(pdev); |
| |
| if (radeon_is_px() && state == VGA_SWITCHEROO_OFF) |
| return; |
| |
| if (state == VGA_SWITCHEROO_ON) { |
| unsigned d3_delay = dev->pdev->d3_delay; |
| |
| printk(KERN_INFO "radeon: switched on\n"); |
| /* don't suspend or resume card normally */ |
| dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; |
| |
| if (d3_delay < 20 && radeon_switcheroo_quirk_long_wakeup(pdev)) |
| dev->pdev->d3_delay = 20; |
| |
| radeon_resume_kms(dev, true, true); |
| |
| dev->pdev->d3_delay = d3_delay; |
| |
| dev->switch_power_state = DRM_SWITCH_POWER_ON; |
| drm_kms_helper_poll_enable(dev); |
| } else { |
| printk(KERN_INFO "radeon: switched off\n"); |
| drm_kms_helper_poll_disable(dev); |
| dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; |
| radeon_suspend_kms(dev, true, true); |
| dev->switch_power_state = DRM_SWITCH_POWER_OFF; |
| } |
| } |
| |
| /** |
| * radeon_switcheroo_can_switch - see if switcheroo state can change |
| * |
| * @pdev: pci dev pointer |
| * |
| * Callback for the switcheroo driver. Check of the switcheroo |
| * state can be changed. |
| * Returns true if the state can be changed, false if not. |
| */ |
| static bool radeon_switcheroo_can_switch(struct pci_dev *pdev) |
| { |
| struct drm_device *dev = pci_get_drvdata(pdev); |
| bool can_switch; |
| |
| spin_lock(&dev->count_lock); |
| can_switch = (dev->open_count == 0); |
| spin_unlock(&dev->count_lock); |
| return can_switch; |
| } |
| |
| static const struct vga_switcheroo_client_ops radeon_switcheroo_ops = { |
| .set_gpu_state = radeon_switcheroo_set_state, |
| .reprobe = NULL, |
| .can_switch = radeon_switcheroo_can_switch, |
| }; |
| |
| /** |
| * radeon_device_init - initialize the driver |
| * |
| * @rdev: radeon_device pointer |
| * @pdev: drm dev pointer |
| * @pdev: pci dev pointer |
| * @flags: driver flags |
| * |
| * Initializes the driver info and hw (all asics). |
| * Returns 0 for success or an error on failure. |
| * Called at driver startup. |
| */ |
| int radeon_device_init(struct radeon_device *rdev, |
| struct drm_device *ddev, |
| struct pci_dev *pdev, |
| uint32_t flags) |
| { |
| int r, i; |
| int dma_bits; |
| bool runtime = false; |
| |
| rdev->shutdown = false; |
| rdev->dev = &pdev->dev; |
| rdev->ddev = ddev; |
| rdev->pdev = pdev; |
| rdev->flags = flags; |
| rdev->family = flags & RADEON_FAMILY_MASK; |
| rdev->is_atom_bios = false; |
| rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT; |
| rdev->mc.gtt_size = 512 * 1024 * 1024; |
| rdev->accel_working = false; |
| /* set up ring ids */ |
| for (i = 0; i < RADEON_NUM_RINGS; i++) { |
| rdev->ring[i].idx = i; |
| } |
| |
| DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X).\n", |
| radeon_family_name[rdev->family], pdev->vendor, pdev->device, |
| pdev->subsystem_vendor, pdev->subsystem_device); |
| |
| /* mutex initialization are all done here so we |
| * can recall function without having locking issues */ |
| mutex_init(&rdev->ring_lock); |
| mutex_init(&rdev->dc_hw_i2c_mutex); |
| atomic_set(&rdev->ih.lock, 0); |
| mutex_init(&rdev->gem.mutex); |
| mutex_init(&rdev->pm.mutex); |
| mutex_init(&rdev->gpu_clock_mutex); |
| mutex_init(&rdev->srbm_mutex); |
| init_rwsem(&rdev->pm.mclk_lock); |
| init_rwsem(&rdev->exclusive_lock); |
| init_waitqueue_head(&rdev->irq.vblank_queue); |
| r = radeon_gem_init(rdev); |
| if (r) |
| return r; |
| /* initialize vm here */ |
| mutex_init(&rdev->vm_manager.lock); |
| /* Adjust VM size here. |
| * Currently set to 4GB ((1 << 20) 4k pages). |
| * Max GPUVM size for cayman and SI is 40 bits. |
| */ |
| rdev->vm_manager.max_pfn = 1 << 20; |
| INIT_LIST_HEAD(&rdev->vm_manager.lru_vm); |
| |
| /* Set asic functions */ |
| r = radeon_asic_init(rdev); |
| if (r) |
| return r; |
| radeon_check_arguments(rdev); |
| |
| /* all of the newer IGP chips have an internal gart |
| * However some rs4xx report as AGP, so remove that here. |
| */ |
| if ((rdev->family >= CHIP_RS400) && |
| (rdev->flags & RADEON_IS_IGP)) { |
| rdev->flags &= ~RADEON_IS_AGP; |
| } |
| |
| if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) { |
| radeon_agp_disable(rdev); |
| } |
| |
| /* Set the internal MC address mask |
| * This is the max address of the GPU's |
| * internal address space. |
| */ |
| if (rdev->family >= CHIP_CAYMAN) |
| rdev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */ |
| else if (rdev->family >= CHIP_CEDAR) |
| rdev->mc.mc_mask = 0xfffffffffULL; /* 36 bit MC */ |
| else |
| rdev->mc.mc_mask = 0xffffffffULL; /* 32 bit MC */ |
| |
| /* set DMA mask + need_dma32 flags. |
| * PCIE - can handle 40-bits. |
| * IGP - can handle 40-bits |
| * AGP - generally dma32 is safest |
| * PCI - dma32 for legacy pci gart, 40 bits on newer asics |
| */ |
| rdev->need_dma32 = false; |
| if (rdev->flags & RADEON_IS_AGP) |
| rdev->need_dma32 = true; |
| if ((rdev->flags & RADEON_IS_PCI) && |
| (rdev->family <= CHIP_RS740)) |
| rdev->need_dma32 = true; |
| |
| dma_bits = rdev->need_dma32 ? 32 : 40; |
| r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits)); |
| if (r) { |
| rdev->need_dma32 = true; |
| dma_bits = 32; |
| printk(KERN_WARNING "radeon: No suitable DMA available.\n"); |
| } |
| r = pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits)); |
| if (r) { |
| pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(32)); |
| printk(KERN_WARNING "radeon: No coherent DMA available.\n"); |
| } |
| |
| /* Registers mapping */ |
| /* TODO: block userspace mapping of io register */ |
| spin_lock_init(&rdev->mmio_idx_lock); |
| spin_lock_init(&rdev->smc_idx_lock); |
| spin_lock_init(&rdev->pll_idx_lock); |
| spin_lock_init(&rdev->mc_idx_lock); |
| spin_lock_init(&rdev->pcie_idx_lock); |
| spin_lock_init(&rdev->pciep_idx_lock); |
| spin_lock_init(&rdev->pif_idx_lock); |
| spin_lock_init(&rdev->cg_idx_lock); |
| spin_lock_init(&rdev->uvd_idx_lock); |
| spin_lock_init(&rdev->rcu_idx_lock); |
| spin_lock_init(&rdev->didt_idx_lock); |
| spin_lock_init(&rdev->end_idx_lock); |
| if (rdev->family >= CHIP_BONAIRE) { |
| rdev->rmmio_base = pci_resource_start(rdev->pdev, 5); |
| rdev->rmmio_size = pci_resource_len(rdev->pdev, 5); |
| } else { |
| rdev->rmmio_base = pci_resource_start(rdev->pdev, 2); |
| rdev->rmmio_size = pci_resource_len(rdev->pdev, 2); |
| } |
| rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size); |
| if (rdev->rmmio == NULL) { |
| return -ENOMEM; |
| } |
| DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base); |
| DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size); |
| |
| /* doorbell bar mapping */ |
| if (rdev->family >= CHIP_BONAIRE) |
| radeon_doorbell_init(rdev); |
| |
| /* io port mapping */ |
| for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { |
| if (pci_resource_flags(rdev->pdev, i) & IORESOURCE_IO) { |
| rdev->rio_mem_size = pci_resource_len(rdev->pdev, i); |
| rdev->rio_mem = pci_iomap(rdev->pdev, i, rdev->rio_mem_size); |
| break; |
| } |
| } |
| if (rdev->rio_mem == NULL) |
| DRM_ERROR("Unable to find PCI I/O BAR\n"); |
| |
| /* if we have > 1 VGA cards, then disable the radeon VGA resources */ |
| /* this will fail for cards that aren't VGA class devices, just |
| * ignore it */ |
| vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode); |
| |
| if (radeon_runtime_pm == 1) |
| runtime = true; |
| if ((radeon_runtime_pm == -1) && radeon_is_px()) |
| runtime = true; |
| vga_switcheroo_register_client(rdev->pdev, &radeon_switcheroo_ops, runtime); |
| if (runtime) |
| vga_switcheroo_init_domain_pm_ops(rdev->dev, &rdev->vga_pm_domain); |
| |
| r = radeon_init(rdev); |
| if (r) |
| return r; |
| |
| r = radeon_ib_ring_tests(rdev); |
| if (r) |
| DRM_ERROR("ib ring test failed (%d).\n", r); |
| |
| r = radeon_gem_debugfs_init(rdev); |
| if (r) { |
| DRM_ERROR("registering gem debugfs failed (%d).\n", r); |
| } |
| |
| if (rdev->flags & RADEON_IS_AGP && !rdev->accel_working) { |
| /* Acceleration not working on AGP card try again |
| * with fallback to PCI or PCIE GART |
| */ |
| radeon_asic_reset(rdev); |
| radeon_fini(rdev); |
| radeon_agp_disable(rdev); |
| r = radeon_init(rdev); |
| if (r) |
| return r; |
| } |
| |
| if ((radeon_testing & 1)) { |
| if (rdev->accel_working) |
| radeon_test_moves(rdev); |
| else |
| DRM_INFO("radeon: acceleration disabled, skipping move tests\n"); |
| } |
| if ((radeon_testing & 2)) { |
| if (rdev->accel_working) |
| radeon_test_syncing(rdev); |
| else |
| DRM_INFO("radeon: acceleration disabled, skipping sync tests\n"); |
| } |
| if (radeon_benchmarking) { |
| if (rdev->accel_working) |
| radeon_benchmark(rdev, radeon_benchmarking); |
| else |
| DRM_INFO("radeon: acceleration disabled, skipping benchmarks\n"); |
| } |
| return 0; |
| } |
| |
| static void radeon_debugfs_remove_files(struct radeon_device *rdev); |
| |
| /** |
| * radeon_device_fini - tear down the driver |
| * |
| * @rdev: radeon_device pointer |
| * |
| * Tear down the driver info (all asics). |
| * Called at driver shutdown. |
| */ |
| void radeon_device_fini(struct radeon_device *rdev) |
| { |
| DRM_INFO("radeon: finishing device.\n"); |
| rdev->shutdown = true; |
| /* evict vram memory */ |
| radeon_bo_evict_vram(rdev); |
| radeon_fini(rdev); |
| vga_switcheroo_unregister_client(rdev->pdev); |
| vga_client_register(rdev->pdev, NULL, NULL, NULL); |
| if (rdev->rio_mem) |
| pci_iounmap(rdev->pdev, rdev->rio_mem); |
| rdev->rio_mem = NULL; |
| iounmap(rdev->rmmio); |
| rdev->rmmio = NULL; |
| if (rdev->family >= CHIP_BONAIRE) |
| radeon_doorbell_fini(rdev); |
| radeon_debugfs_remove_files(rdev); |
| } |
| |
| |
| /* |
| * Suspend & resume. |
| */ |
| /** |
| * radeon_suspend_kms - initiate device suspend |
| * |
| * @pdev: drm dev pointer |
| * @state: suspend state |
| * |
| * Puts the hw in the suspend state (all asics). |
| * Returns 0 for success or an error on failure. |
| * Called at driver suspend. |
| */ |
| int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon) |
| { |
| struct radeon_device *rdev; |
| struct drm_crtc *crtc; |
| struct drm_connector *connector; |
| int i, r; |
| bool force_completion = false; |
| |
| if (dev == NULL || dev->dev_private == NULL) { |
| return -ENODEV; |
| } |
| |
| rdev = dev->dev_private; |
| |
| if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) |
| return 0; |
| |
| drm_kms_helper_poll_disable(dev); |
| |
| /* turn off display hw */ |
| list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); |
| } |
| |
| /* unpin the front buffers */ |
| list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb); |
| struct radeon_bo *robj; |
| |
| if (rfb == NULL || rfb->obj == NULL) { |
| continue; |
| } |
| robj = gem_to_radeon_bo(rfb->obj); |
| /* don't unpin kernel fb objects */ |
| if (!radeon_fbdev_robj_is_fb(rdev, robj)) { |
| r = radeon_bo_reserve(robj, false); |
| if (r == 0) { |
| radeon_bo_unpin(robj); |
| radeon_bo_unreserve(robj); |
| } |
| } |
| } |
| /* evict vram memory */ |
| radeon_bo_evict_vram(rdev); |
| |
| mutex_lock(&rdev->ring_lock); |
| /* wait for gpu to finish processing current batch */ |
| for (i = 0; i < RADEON_NUM_RINGS; i++) { |
| r = radeon_fence_wait_empty_locked(rdev, i); |
| if (r) { |
| /* delay GPU reset to resume */ |
| force_completion = true; |
| } |
| } |
| if (force_completion) { |
| radeon_fence_driver_force_completion(rdev); |
| } |
| mutex_unlock(&rdev->ring_lock); |
| |
| radeon_save_bios_scratch_regs(rdev); |
| |
| radeon_suspend(rdev); |
| radeon_hpd_fini(rdev); |
| /* evict remaining vram memory */ |
| radeon_bo_evict_vram(rdev); |
| |
| radeon_agp_suspend(rdev); |
| |
| pci_save_state(dev->pdev); |
| if (suspend) { |
| /* Shut down the device */ |
| pci_disable_device(dev->pdev); |
| pci_set_power_state(dev->pdev, PCI_D3hot); |
| } |
| |
| if (fbcon) { |
| console_lock(); |
| radeon_fbdev_set_suspend(rdev, 1); |
| console_unlock(); |
| } |
| return 0; |
| } |
| |
| /** |
| * radeon_resume_kms - initiate device resume |
| * |
| * @pdev: drm dev pointer |
| * |
| * Bring the hw back to operating state (all asics). |
| * Returns 0 for success or an error on failure. |
| * Called at driver resume. |
| */ |
| int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon) |
| { |
| struct drm_connector *connector; |
| struct radeon_device *rdev = dev->dev_private; |
| int r; |
| |
| if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) |
| return 0; |
| |
| if (fbcon) { |
| console_lock(); |
| } |
| if (resume) { |
| pci_set_power_state(dev->pdev, PCI_D0); |
| pci_restore_state(dev->pdev); |
| if (pci_enable_device(dev->pdev)) { |
| if (fbcon) |
| console_unlock(); |
| return -1; |
| } |
| } |
| /* resume AGP if in use */ |
| radeon_agp_resume(rdev); |
| radeon_resume(rdev); |
| |
| r = radeon_ib_ring_tests(rdev); |
| if (r) |
| DRM_ERROR("ib ring test failed (%d).\n", r); |
| |
| if (rdev->pm.dpm_enabled) { |
| /* do dpm late init */ |
| r = radeon_pm_late_init(rdev); |
| if (r) { |
| rdev->pm.dpm_enabled = false; |
| DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n"); |
| } |
| } |
| |
| radeon_restore_bios_scratch_regs(rdev); |
| |
| if (fbcon) { |
| radeon_fbdev_set_suspend(rdev, 0); |
| console_unlock(); |
| } |
| |
| /* init dig PHYs, disp eng pll */ |
| if (rdev->is_atom_bios) { |
| radeon_atom_encoder_init(rdev); |
| radeon_atom_disp_eng_pll_init(rdev); |
| /* turn on the BL */ |
| if (rdev->mode_info.bl_encoder) { |
| u8 bl_level = radeon_get_backlight_level(rdev, |
| rdev->mode_info.bl_encoder); |
| radeon_set_backlight_level(rdev, rdev->mode_info.bl_encoder, |
| bl_level); |
| } |
| } |
| /* reset hpd state */ |
| radeon_hpd_init(rdev); |
| /* blat the mode back in */ |
| drm_helper_resume_force_mode(dev); |
| /* turn on display hw */ |
| list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); |
| } |
| |
| drm_kms_helper_poll_enable(dev); |
| return 0; |
| } |
| |
| /** |
| * radeon_gpu_reset - reset the asic |
| * |
| * @rdev: radeon device pointer |
| * |
| * Attempt the reset the GPU if it has hung (all asics). |
| * Returns 0 for success or an error on failure. |
| */ |
| int radeon_gpu_reset(struct radeon_device *rdev) |
| { |
| unsigned ring_sizes[RADEON_NUM_RINGS]; |
| uint32_t *ring_data[RADEON_NUM_RINGS]; |
| |
| bool saved = false; |
| |
| int i, r; |
| int resched; |
| |
| down_write(&rdev->exclusive_lock); |
| |
| if (!rdev->needs_reset) { |
| up_write(&rdev->exclusive_lock); |
| return 0; |
| } |
| |
| rdev->needs_reset = false; |
| |
| radeon_save_bios_scratch_regs(rdev); |
| /* block TTM */ |
| resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev); |
| radeon_pm_suspend(rdev); |
| radeon_suspend(rdev); |
| |
| for (i = 0; i < RADEON_NUM_RINGS; ++i) { |
| ring_sizes[i] = radeon_ring_backup(rdev, &rdev->ring[i], |
| &ring_data[i]); |
| if (ring_sizes[i]) { |
| saved = true; |
| dev_info(rdev->dev, "Saved %d dwords of commands " |
| "on ring %d.\n", ring_sizes[i], i); |
| } |
| } |
| |
| retry: |
| r = radeon_asic_reset(rdev); |
| if (!r) { |
| dev_info(rdev->dev, "GPU reset succeeded, trying to resume\n"); |
| radeon_resume(rdev); |
| } |
| |
| radeon_restore_bios_scratch_regs(rdev); |
| |
| if (!r) { |
| for (i = 0; i < RADEON_NUM_RINGS; ++i) { |
| radeon_ring_restore(rdev, &rdev->ring[i], |
| ring_sizes[i], ring_data[i]); |
| ring_sizes[i] = 0; |
| ring_data[i] = NULL; |
| } |
| |
| r = radeon_ib_ring_tests(rdev); |
| if (r) { |
| dev_err(rdev->dev, "ib ring test failed (%d).\n", r); |
| if (saved) { |
| saved = false; |
| radeon_suspend(rdev); |
| goto retry; |
| } |
| } |
| } else { |
| radeon_fence_driver_force_completion(rdev); |
| for (i = 0; i < RADEON_NUM_RINGS; ++i) { |
| kfree(ring_data[i]); |
| } |
| } |
| |
| radeon_pm_resume(rdev); |
| drm_helper_resume_force_mode(rdev->ddev); |
| |
| ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched); |
| if (r) { |
| /* bad news, how to tell it to userspace ? */ |
| dev_info(rdev->dev, "GPU reset failed\n"); |
| } |
| |
| up_write(&rdev->exclusive_lock); |
| return r; |
| } |
| |
| |
| /* |
| * Debugfs |
| */ |
| int radeon_debugfs_add_files(struct radeon_device *rdev, |
| struct drm_info_list *files, |
| unsigned nfiles) |
| { |
| unsigned i; |
| |
| for (i = 0; i < rdev->debugfs_count; i++) { |
| if (rdev->debugfs[i].files == files) { |
| /* Already registered */ |
| return 0; |
| } |
| } |
| |
| i = rdev->debugfs_count + 1; |
| if (i > RADEON_DEBUGFS_MAX_COMPONENTS) { |
| DRM_ERROR("Reached maximum number of debugfs components.\n"); |
| DRM_ERROR("Report so we increase " |
| "RADEON_DEBUGFS_MAX_COMPONENTS.\n"); |
| return -EINVAL; |
| } |
| rdev->debugfs[rdev->debugfs_count].files = files; |
| rdev->debugfs[rdev->debugfs_count].num_files = nfiles; |
| rdev->debugfs_count = i; |
| #if defined(CONFIG_DEBUG_FS) |
| drm_debugfs_create_files(files, nfiles, |
| rdev->ddev->control->debugfs_root, |
| rdev->ddev->control); |
| drm_debugfs_create_files(files, nfiles, |
| rdev->ddev->primary->debugfs_root, |
| rdev->ddev->primary); |
| #endif |
| return 0; |
| } |
| |
| static void radeon_debugfs_remove_files(struct radeon_device *rdev) |
| { |
| #if defined(CONFIG_DEBUG_FS) |
| unsigned i; |
| |
| for (i = 0; i < rdev->debugfs_count; i++) { |
| drm_debugfs_remove_files(rdev->debugfs[i].files, |
| rdev->debugfs[i].num_files, |
| rdev->ddev->control); |
| drm_debugfs_remove_files(rdev->debugfs[i].files, |
| rdev->debugfs[i].num_files, |
| rdev->ddev->primary); |
| } |
| #endif |
| } |
| |
| #if defined(CONFIG_DEBUG_FS) |
| int radeon_debugfs_init(struct drm_minor *minor) |
| { |
| return 0; |
| } |
| |
| void radeon_debugfs_cleanup(struct drm_minor *minor) |
| { |
| } |
| #endif |