--- /dev/null
+/*
+ * 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",
+ "MULLINS",
+ "LAST",
+};
+
+#define RADEON_PX_QUIRK_DISABLE_PX (1 << 0)
+#define RADEON_PX_QUIRK_LONG_WAKEUP (1 << 1)
+
+struct radeon_px_quirk {
+ u32 chip_vendor;
+ u32 chip_device;
+ u32 subsys_vendor;
+ u32 subsys_device;
+ u32 px_quirk_flags;
+};
+
+static struct radeon_px_quirk radeon_px_quirk_list[] = {
+ /* Acer aspire 5560g (CPU: AMD A4-3305M; GPU: AMD Radeon HD 6480g + 7470m)
+ * https://bugzilla.kernel.org/show_bug.cgi?id=74551
+ */
+ { PCI_VENDOR_ID_ATI, 0x6760, 0x1025, 0x0672, RADEON_PX_QUIRK_DISABLE_PX },
+ /* Asus K73TA laptop with AMD A6-3400M APU and Radeon 6550 GPU
+ * https://bugzilla.kernel.org/show_bug.cgi?id=51381
+ */
+ { PCI_VENDOR_ID_ATI, 0x6741, 0x1043, 0x108c, RADEON_PX_QUIRK_DISABLE_PX },
+ /* Asus K53TK laptop with AMD A6-3420M APU and Radeon 7670m GPU
+ * https://bugzilla.kernel.org/show_bug.cgi?id=51381
+ */
+ { PCI_VENDOR_ID_ATI, 0x6840, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
+ /* macbook pro 8.2 */
+ { PCI_VENDOR_ID_ATI, 0x6741, PCI_VENDOR_ID_APPLE, 0x00e2, RADEON_PX_QUIRK_LONG_WAKEUP },
+ { 0, 0, 0, 0, 0 },
+};
+
+bool radeon_is_px(struct drm_device *dev)
+{
+ struct radeon_device *rdev = dev->dev_private;
+
+ if (rdev->flags & RADEON_IS_PX)
+ return true;
+ return false;
+}
+
+static void radeon_device_handle_px_quirks(struct radeon_device *rdev)
+{
+ struct radeon_px_quirk *p = radeon_px_quirk_list;
+
+ /* Apply PX quirks */
+ while (p && p->chip_device != 0) {
+ if (rdev->pdev->vendor == p->chip_vendor &&
+ rdev->pdev->device == p->chip_device &&
+ rdev->pdev->subsystem_vendor == p->subsys_vendor &&
+ rdev->pdev->subsystem_device == p->subsys_device) {
+ rdev->px_quirk_flags = p->px_quirk_flags;
+ break;
+ }
+ ++p;
+ }
+
+ if (rdev->px_quirk_flags & RADEON_PX_QUIRK_DISABLE_PX)
+ rdev->flags &= ~RADEON_IS_PX;
+}
+
+/**
+ * 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);
+ }
+}
+
+void radeon_pci_config_reset(struct radeon_device *rdev)
+{
+ pci_write_config_dword(rdev->pdev, 0x7c, RADEON_ASIC_RESET_DATA);
+}
+
+/**
+ * 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.
+ */
+static 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)
+ */
+static 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_doorbell_get_kfd_info - Report doorbell configuration required to
+ * setup KFD
+ *
+ * @rdev: radeon_device pointer
+ * @aperture_base: output returning doorbell aperture base physical address
+ * @aperture_size: output returning doorbell aperture size in bytes
+ * @start_offset: output returning # of doorbell bytes reserved for radeon.
+ *
+ * Radeon and the KFD share the doorbell aperture. Radeon sets it up,
+ * takes doorbells required for its own rings and reports the setup to KFD.
+ * Radeon reserved doorbells are at the start of the doorbell aperture.
+ */
+void radeon_doorbell_get_kfd_info(struct radeon_device *rdev,
+ phys_addr_t *aperture_base,
+ size_t *aperture_size,
+ size_t *start_offset)
+{
+ /* The first num_doorbells are used by radeon.
+ * KFD takes whatever's left in the aperture. */
+ if (rdev->doorbell.size > rdev->doorbell.num_doorbells * sizeof(u32)) {
+ *aperture_base = rdev->doorbell.base;
+ *aperture_size = rdev->doorbell.size;
+ *start_offset = rdev->doorbell.num_doorbells * sizeof(u32);
+ } else {
+ *aperture_base = 0;
+ *aperture_size = 0;
+ *start_offset = 0;
+ }
+}
+
+/*
+ * 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, 0, NULL, 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;
+ }
+ rdev->dummy_page.entry = radeon_gart_get_page_entry(rdev->dummy_page.addr,
+ RADEON_GART_PAGE_DUMMY);
+ 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);
+ mutex_init(&rdev->mode_info.atom_context->scratch_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;
+ }
+
+ if (!radeon_check_pot_argument(radeon_vm_size)) {
+ dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
+ radeon_vm_size);
+ radeon_vm_size = 4;
+ }
+
+ if (radeon_vm_size < 1) {
+ dev_warn(rdev->dev, "VM size (%d) to small, min is 1GB\n",
+ radeon_vm_size);
+ radeon_vm_size = 4;
+ }
+
+ /*
+ * Max GPUVM size for Cayman, SI and CI are 40 bits.
+ */
+ if (radeon_vm_size > 1024) {
+ dev_warn(rdev->dev, "VM size (%d) too large, max is 1TB\n",
+ radeon_vm_size);
+ radeon_vm_size = 4;
+ }
+
+ /* defines number of bits in page table versus page directory,
+ * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
+ * page table and the remaining bits are in the page directory */
+ if (radeon_vm_block_size == -1) {
+
+ /* Total bits covered by PD + PTs */
+ unsigned bits = ilog2(radeon_vm_size) + 18;
+
+ /* Make sure the PD is 4K in size up to 8GB address space.
+ Above that split equal between PD and PTs */
+ if (radeon_vm_size <= 8)
+ radeon_vm_block_size = bits - 9;
+ else
+ radeon_vm_block_size = (bits + 3) / 2;
+
+ } else if (radeon_vm_block_size < 9) {
+ dev_warn(rdev->dev, "VM page table size (%d) too small\n",
+ radeon_vm_block_size);
+ radeon_vm_block_size = 9;
+ }
+
+ if (radeon_vm_block_size > 24 ||
+ (radeon_vm_size * 1024) < (1ull << radeon_vm_block_size)) {
+ dev_warn(rdev->dev, "VM page table size (%d) too large\n",
+ radeon_vm_block_size);
+ radeon_vm_block_size = 9;
+ }
+}
+
+/**
+ * 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);
+ struct radeon_device *rdev = dev->dev_private;
+
+ if (radeon_is_px(dev) && 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 && (rdev->px_quirk_flags & RADEON_PX_QUIRK_LONG_WAKEUP))
+ 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);
+
+ /*
+ * FIXME: open_count is protected by drm_global_mutex but that would lead to
+ * locking inversion with the driver load path. And the access here is
+ * completely racy anyway. So don't bother with locking for now.
+ */
+ return dev->open_count == 0;
+}
+
+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;
+ }
+ rdev->fence_context = fence_context_alloc(RADEON_NUM_RINGS);
+
+ 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);
+ mutex_init(&rdev->grbm_idx_mutex);
+ init_rwsem(&rdev->pm.mclk_lock);
+ init_rwsem(&rdev->exclusive_lock);
+ init_waitqueue_head(&rdev->irq.vblank_queue);
+ mutex_init(&rdev->mn_lock);
+ hash_init(rdev->mn_hash);
+ r = radeon_gem_init(rdev);
+ if (r)
+ return r;
+
+ radeon_check_arguments(rdev);
+ /* Adjust VM size here.
+ * Max GPUVM size for cayman+ is 40 bits.
+ */
+ rdev->vm_manager.max_pfn = radeon_vm_size << 18;
+
+ /* Set asic functions */
+ r = radeon_asic_init(rdev);
+ if (r)
+ return r;
+
+ /* 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 (rdev->flags & RADEON_IS_PX)
+ radeon_device_handle_px_quirks(rdev);
+
+ /* 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 (rdev->flags & 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)
+ goto failed;
+
+ r = radeon_gem_debugfs_init(rdev);
+ if (r) {
+ DRM_ERROR("registering gem debugfs failed (%d).\n", r);
+ }
+
+ r = radeon_mst_debugfs_init(rdev);
+ if (r) {
+ DRM_ERROR("registering mst 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)
+ goto failed;
+ }
+
+ r = radeon_ib_ring_tests(rdev);
+ if (r)
+ DRM_ERROR("ib ring test failed (%d).\n", r);
+
+ /*
+ * Turks/Thames GPU will freeze whole laptop if DPM is not restarted
+ * after the CP ring have chew one packet at least. Hence here we stop
+ * and restart DPM after the radeon_ib_ring_tests().
+ */
+ if (rdev->pm.dpm_enabled &&
+ (rdev->pm.pm_method == PM_METHOD_DPM) &&
+ (rdev->family == CHIP_TURKS) &&
+ (rdev->flags & RADEON_IS_MOBILITY)) {
+ mutex_lock(&rdev->pm.mutex);
+ radeon_dpm_disable(rdev);
+ radeon_dpm_enable(rdev);
+ mutex_unlock(&rdev->pm.mutex);
+ }
+
+ 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;
+
+failed:
+ if (runtime)
+ vga_switcheroo_fini_domain_pm_ops(rdev->dev);
+ return r;
+}
+
+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);
+ if (rdev->flags & RADEON_IS_PX)
+ vga_switcheroo_fini_domain_pm_ops(rdev->dev);
+ 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;
+
+ 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->primary->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);
+
+ /* wait for gpu to finish processing current batch */
+ for (i = 0; i < RADEON_NUM_RINGS; i++) {
+ r = radeon_fence_wait_empty(rdev, i);
+ if (r) {
+ /* delay GPU reset to resume */
+ radeon_fence_driver_force_completion(rdev, i);
+ }
+ }
+
+ 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.pm_method == PM_METHOD_DPM) && 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");
+ }
+ } else {
+ /* resume old pm late */
+ radeon_pm_resume(rdev);
+ }
+
+ radeon_restore_bios_scratch_regs(rdev);
+
+ /* 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 */
+ if (fbcon) {
+ 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);
+
+ /* set the power state here in case we are a PX system or headless */
+ if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
+ radeon_pm_compute_clocks(rdev);
+
+ if (fbcon) {
+ radeon_fbdev_set_suspend(rdev, 0);
+ console_unlock();
+ }
+
+ 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;
+ }
+
+ radeon_save_bios_scratch_regs(rdev);
+ /* block TTM */
+ resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
+ radeon_suspend(rdev);
+ radeon_hpd_fini(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);
+ }
+ }
+
+ 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);
+
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ if (!r && ring_data[i]) {
+ radeon_ring_restore(rdev, &rdev->ring[i],
+ ring_sizes[i], ring_data[i]);
+ } else {
+ radeon_fence_driver_force_completion(rdev, i);
+ kfree(ring_data[i]);
+ }
+ }
+
+ if ((rdev->pm.pm_method == PM_METHOD_DPM) && 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");
+ }
+ } else {
+ /* resume old pm late */
+ radeon_pm_resume(rdev);
+ }
+
+ /* 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);
+
+ ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
+
+ rdev->in_reset = true;
+ rdev->needs_reset = false;
+
+ downgrade_write(&rdev->exclusive_lock);
+
+ drm_helper_resume_force_mode(rdev->ddev);
+
+ /* set the power state here in case we are a PX system or headless */
+ if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
+ radeon_pm_compute_clocks(rdev);
+
+ if (!r) {
+ r = radeon_ib_ring_tests(rdev);
+ if (r && saved)
+ r = -EAGAIN;
+ } else {
+ /* bad news, how to tell it to userspace ? */
+ dev_info(rdev->dev, "GPU reset failed\n");
+ }
+
+ rdev->needs_reset = r == -EAGAIN;
+ rdev->in_reset = false;
+
+ up_read(&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
Code Review / kvmfornfv.git / blobdiff