1 files changed, 160 insertions, 75 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 768b1509fa03..e28e4ed5f720 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -30,6 +30,7 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/radeon_drm.h>
 #include <linux/vgaarb.h>
+#include <linux/vga_switcheroo.h>
 #include "radeon_reg.h"
 #include "radeon.h"
 #include "radeon_asic.h"
@@ -100,80 +101,103 @@ void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
         }
 }
 
-/*
- * MC common functions
+/**
+ * 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 explictly 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)
+{
+        mc->vram_start = base;
+        if (mc->mc_vram_size > (0xFFFFFFFF - 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_end <= 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;
+        dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%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.
  */
-int radeon_mc_setup(struct radeon_device *rdev)
+void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
 {
-        uint32_t tmp;
+        u64 size_af, size_bf;
 
-        /* Some chips have an "issue" with the memory controller, the
-         * location must be aligned to the size. We just align it down,
-         * too bad if we walk over the top of system memory, we don't
-         * use DMA without a remapped anyway.
-         * Affected chips are rv280, all r3xx, and all r4xx, but not IGP
-         */
-        /* FGLRX seems to setup like this, VRAM a 0, then GART.
-         */
-        /*
-         * Note: from R6xx the address space is 40bits but here we only
-         * use 32bits (still have to see a card which would exhaust 4G
-         * address space).
-         */
-        if (rdev->mc.vram_location != 0xFFFFFFFFUL) {
-                /* vram location was already setup try to put gtt after
-                 * if it fits */
-                tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size;
-                tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
-                if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
-                        rdev->mc.gtt_location = tmp;
-                } else {
-                        if (rdev->mc.gtt_size >= rdev->mc.vram_location) {
-                                printk(KERN_ERR "[drm] GTT too big to fit "
-                                       "before or after vram location.\n");
-                                return -EINVAL;
-                        }
-                        rdev->mc.gtt_location = 0;
-                }
-        } else if (rdev->mc.gtt_location != 0xFFFFFFFFUL) {
-                /* gtt location was already setup try to put vram before
-                 * if it fits */
-                if (rdev->mc.mc_vram_size < rdev->mc.gtt_location) {
-                        rdev->mc.vram_location = 0;
-                } else {
-                        tmp = rdev->mc.gtt_location + rdev->mc.gtt_size;
-                        tmp += (rdev->mc.mc_vram_size - 1);
-                        tmp &= ~(rdev->mc.mc_vram_size - 1);
-                        if ((0xFFFFFFFFUL - tmp) >= rdev->mc.mc_vram_size) {
-                                rdev->mc.vram_location = tmp;
-                        } else {
-                                printk(KERN_ERR "[drm] vram too big to fit "
-                                       "before or after GTT location.\n");
-                                return -EINVAL;
-                        }
+        size_af = 0xFFFFFFFF - mc->vram_end;
+        size_bf = mc->vram_start;
+        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_size;
         } else {
-                rdev->mc.vram_location = 0;
-                tmp = rdev->mc.mc_vram_size;
-                tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
-                rdev->mc.gtt_location = tmp;
-        }
-        rdev->mc.vram_start = rdev->mc.vram_location;
-        rdev->mc.vram_end = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
-        rdev->mc.gtt_start = rdev->mc.gtt_location;
-        rdev->mc.gtt_end = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
-        DRM_INFO("radeon: VRAM %uM\n", (unsigned)(rdev->mc.mc_vram_size >> 20));
-        DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
-                 (unsigned)rdev->mc.vram_location,
-                 (unsigned)(rdev->mc.vram_location + rdev->mc.mc_vram_size - 1));
-        DRM_INFO("radeon: GTT %uM\n", (unsigned)(rdev->mc.gtt_size >> 20));
-        DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
-                 (unsigned)rdev->mc.gtt_location,
-                 (unsigned)(rdev->mc.gtt_location + rdev->mc.gtt_size - 1));
-        return 0;
+                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_end = mc->gtt_start + mc->gtt_size - 1;
+        dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
+                        mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end);
 }
 
-
 /*
  * GPU helpers function.
  */
@@ -182,7 +206,16 @@ bool radeon_card_posted(struct radeon_device *rdev)
         uint32_t reg;
 
         /* first check CRTCs */
-        if (ASIC_IS_AVIVO(rdev)) {
+        if (ASIC_IS_DCE4(rdev)) {
+                reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
+                        RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET) |
+                        RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
+                        RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET) |
+                        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) {
@@ -229,6 +262,8 @@ bool radeon_boot_test_post_card(struct radeon_device *rdev)
 
 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;
@@ -310,7 +345,7 @@ void radeon_register_accessor_init(struct radeon_device *rdev)
                 rdev->mc_rreg = &rs600_mc_rreg;
                 rdev->mc_wreg = &rs600_mc_wreg;
         }
-        if (rdev->family >= CHIP_R600) {
+        if ((rdev->family >= CHIP_R600) && (rdev->family <= CHIP_RV740)) {
                 rdev->pciep_rreg = &r600_pciep_rreg;
                 rdev->pciep_wreg = &r600_pciep_wreg;
         }
@@ -329,21 +364,22 @@ int radeon_asic_init(struct radeon_device *rdev)
         case CHIP_RS100:
         case CHIP_RV200:
         case CHIP_RS200:
+                rdev->asic = &r100_asic;
+                break;
         case CHIP_R200:
         case CHIP_RV250:
         case CHIP_RS300:
         case CHIP_RV280:
-                rdev->asic = &r100_asic;
+                rdev->asic = &r200_asic;
                 break;
         case CHIP_R300:
         case CHIP_R350:
         case CHIP_RV350:
         case CHIP_RV380:
-                rdev->asic = &r300_asic;
-                if (rdev->flags & RADEON_IS_PCIE) {
-                        rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
-                        rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
-                }
+                if (rdev->flags & RADEON_IS_PCIE)
+                        rdev->asic = &r300_asic_pcie;
+                else
+                        rdev->asic = &r300_asic;
                 break;
         case CHIP_R420:
         case CHIP_R423:
@@ -387,6 +423,13 @@ int radeon_asic_init(struct radeon_device *rdev)
         case CHIP_RV740:
                 rdev->asic = &rv770_asic;
                 break;
+        case CHIP_CEDAR:
+        case CHIP_REDWOOD:
+        case CHIP_JUNIPER:
+        case CHIP_CYPRESS:
+        case CHIP_HEMLOCK:
+                rdev->asic = &evergreen_asic;
+                break;
         default:
                 /* FIXME: not supported yet */
                 return -EINVAL;
@@ -613,6 +656,36 @@ void radeon_check_arguments(struct radeon_device *rdev)
         }
 }
 
+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;
+        pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
+        if (state == VGA_SWITCHEROO_ON) {
+                printk(KERN_INFO "radeon: switched on\n");
+                /* don't suspend or resume card normally */
+                rdev->powered_down = false;
+                radeon_resume_kms(dev);
+        } else {
+                printk(KERN_INFO "radeon: switched off\n");
+                radeon_suspend_kms(dev, pmm);
+                /* don't suspend or resume card normally */
+                rdev->powered_down = true;
+        }
+}
+
+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;
+}
+
+
 int radeon_device_init(struct radeon_device *rdev,
                        struct drm_device *ddev,
                        struct pci_dev *pdev,
@@ -638,11 +711,14 @@ int radeon_device_init(struct radeon_device *rdev,
         mutex_init(&rdev->cs_mutex);
         mutex_init(&rdev->ib_pool.mutex);
         mutex_init(&rdev->cp.mutex);
+        mutex_init(&rdev->dc_hw_i2c_mutex);
         if (rdev->family >= CHIP_R600)
                 spin_lock_init(&rdev->ih.lock);
         mutex_init(&rdev->gem.mutex);
+        mutex_init(&rdev->pm.mutex);
         rwlock_init(&rdev->fence_drv.lock);
         INIT_LIST_HEAD(&rdev->gem.objects);
+        init_waitqueue_head(&rdev->irq.vblank_queue);
 
         /* setup workqueue */
         rdev->wq = create_workqueue("radeon");
@@ -692,6 +768,9 @@ int radeon_device_init(struct radeon_device *rdev,
         /* 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);
+        vga_switcheroo_register_client(rdev->pdev,
+                                       radeon_switcheroo_set_state,
+                                       radeon_switcheroo_can_switch);
 
         r = radeon_init(rdev);
         if (r)
@@ -723,6 +802,7 @@ void radeon_device_fini(struct radeon_device *rdev)
         rdev->shutdown = true;
         radeon_fini(rdev);
         destroy_workqueue(rdev->wq);
+        vga_switcheroo_unregister_client(rdev->pdev);
         vga_client_register(rdev->pdev, NULL, NULL, NULL);
         iounmap(rdev->rmmio);
         rdev->rmmio = NULL;
@@ -746,6 +826,8 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
         }
         rdev = dev->dev_private;
 
+        if (rdev->powered_down)
+                return 0;
         /* unpin the front buffers */
         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
                 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);
@@ -791,6 +873,9 @@ int radeon_resume_kms(struct drm_device *dev)
 {
         struct radeon_device *rdev = dev->dev_private;
 
+        if (rdev->powered_down)
+                return 0;
+
         acquire_console_sem();
         pci_set_power_state(dev->pdev, PCI_D0);
         pci_restore_state(dev->pdev);