1 files changed, 195 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 4dfead8cee33..3a264aa3a79a 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -41,6 +41,41 @@
 
 static void rv770_gpu_init(struct radeon_device *rdev);
 void rv770_fini(struct radeon_device *rdev);
+static void rv770_pcie_gen2_enable(struct radeon_device *rdev);
+
+u32 rv770_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
+{
+        struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
+        u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
+
+        /* Lock the graphics update lock */
+        tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
+        WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
+
+        /* update the scanout addresses */
+        if (radeon_crtc->crtc_id) {
+                WREG32(D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
+                WREG32(D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
+        } else {
+                WREG32(D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
+                WREG32(D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
+        }
+        WREG32(D1GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
+               (u32)crtc_base);
+        WREG32(D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
+               (u32)crtc_base);
+
+        /* Wait for update_pending to go high. */
+        while (!(RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING));
+        DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");
+
+        /* Unlock the lock, so double-buffering can take place inside vblank */
+        tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
+        WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
+
+        /* Return current update_pending status: */
+        return RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING;
+}
 
 /* get temperature in millidegrees */
 u32 rv770_get_temp(struct radeon_device *rdev)
@@ -489,6 +524,49 @@ static u32 r700_get_tile_pipe_to_backend_map(struct radeon_device *rdev,
         return backend_map;
 }
 
+static void rv770_program_channel_remap(struct radeon_device *rdev)
+{
+        u32 tcp_chan_steer, mc_shared_chremap, tmp;
+        bool force_no_swizzle;
+
+        switch (rdev->family) {
+        case CHIP_RV770:
+        case CHIP_RV730:
+                force_no_swizzle = false;
+                break;
+        case CHIP_RV710:
+        case CHIP_RV740:
+        default:
+                force_no_swizzle = true;
+                break;
+        }
+
+        tmp = RREG32(MC_SHARED_CHMAP);
+        switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
+        case 0:
+        case 1:
+        default:
+                /* default mapping */
+                mc_shared_chremap = 0x00fac688;
+                break;
+        case 2:
+        case 3:
+                if (force_no_swizzle)
+                        mc_shared_chremap = 0x00fac688;
+                else
+                        mc_shared_chremap = 0x00bbc298;
+                break;
+        }
+
+        if (rdev->family == CHIP_RV740)
+                tcp_chan_steer = 0x00ef2a60;
+        else
+                tcp_chan_steer = 0x00fac688;
+
+        WREG32(TCP_CHAN_STEER, tcp_chan_steer);
+        WREG32(MC_SHARED_CHREMAP, mc_shared_chremap);
+}
+
 static void rv770_gpu_init(struct radeon_device *rdev)
 {
         int i, j, num_qd_pipes;
@@ -688,6 +766,8 @@ static void rv770_gpu_init(struct radeon_device *rdev)
         WREG32(DCP_TILING_CONFIG, (gb_tiling_config & 0xffff));
         WREG32(HDP_TILING_CONFIG, (gb_tiling_config & 0xffff));
 
+        rv770_program_channel_remap(rdev);
+
         WREG32(CC_RB_BACKEND_DISABLE,      cc_rb_backend_disable);
         WREG32(CC_GC_SHADER_PIPE_CONFIG,   cc_gc_shader_pipe_config);
         WREG32(GC_USER_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);
@@ -956,6 +1036,45 @@ static void rv770_vram_scratch_fini(struct radeon_device *rdev)
         radeon_bo_unref(&rdev->vram_scratch.robj);
 }
 
+void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
+{
+        u64 size_bf, size_af;
+
+        if (mc->mc_vram_size > 0xE0000000) {
+                /* leave room for at least 512M GTT */
+                dev_warn(rdev->dev, "limiting VRAM\n");
+                mc->real_vram_size = 0xE0000000;
+                mc->mc_vram_size = 0xE0000000;
+        }
+        if (rdev->flags & RADEON_IS_AGP) {
+                size_bf = mc->gtt_start;
+                size_af = 0xFFFFFFFF - mc->gtt_end + 1;
+                if (size_bf > size_af) {
+                        if (mc->mc_vram_size > size_bf) {
+                                dev_warn(rdev->dev, "limiting VRAM\n");
+                                mc->real_vram_size = size_bf;
+                                mc->mc_vram_size = size_bf;
+                        }
+                        mc->vram_start = mc->gtt_start - mc->mc_vram_size;
+                } else {
+                        if (mc->mc_vram_size > size_af) {
+                                dev_warn(rdev->dev, "limiting VRAM\n");
+                                mc->real_vram_size = size_af;
+                                mc->mc_vram_size = size_af;
+                        }
+                        mc->vram_start = mc->gtt_end;
+                }
+                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);
+        } else {
+                radeon_vram_location(rdev, &rdev->mc, 0);
+                rdev->mc.gtt_base_align = 0;
+                radeon_gtt_location(rdev, mc);
+        }
+}
+
 int rv770_mc_init(struct radeon_device *rdev)
 {
         u32 tmp;
@@ -996,7 +1115,7 @@ int rv770_mc_init(struct radeon_device *rdev)
         rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
         rdev->mc.visible_vram_size = rdev->mc.aper_size;
         rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
-        r600_vram_gtt_location(rdev, &rdev->mc);
+        r700_vram_gtt_location(rdev, &rdev->mc);
         radeon_update_bandwidth_info(rdev);
 
         return 0;
@@ -1006,6 +1125,9 @@ static int rv770_startup(struct radeon_device *rdev)
 {
         int r;
 
+        /* enable pcie gen2 link */
+        rv770_pcie_gen2_enable(rdev);
+
         if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
                 r = r600_init_microcode(rdev);
                 if (r) {
@@ -1244,3 +1366,75 @@ void rv770_fini(struct radeon_device *rdev)
         rdev->bios = NULL;
         radeon_dummy_page_fini(rdev);
 }
+
+static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
+{
+        u32 link_width_cntl, lanes, speed_cntl, tmp;
+        u16 link_cntl2;
+
+        if (rdev->flags & RADEON_IS_IGP)
+                return;
+
+        if (!(rdev->flags & RADEON_IS_PCIE))
+                return;
+
+        /* x2 cards have a special sequence */
+        if (ASIC_IS_X2(rdev))
+                return;
+
+        /* advertise upconfig capability */
+        link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL);
+        link_width_cntl &= ~LC_UPCONFIGURE_DIS;
+        WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
+        link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL);
+        if (link_width_cntl & LC_RENEGOTIATION_SUPPORT) {
+                lanes = (link_width_cntl & LC_LINK_WIDTH_RD_MASK) >> LC_LINK_WIDTH_RD_SHIFT;
+                link_width_cntl &= ~(LC_LINK_WIDTH_MASK |
+                                     LC_RECONFIG_ARC_MISSING_ESCAPE);
+                link_width_cntl |= lanes | LC_RECONFIG_NOW |
+                        LC_RENEGOTIATE_EN | LC_UPCONFIGURE_SUPPORT;
+                WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
+        } else {
+                link_width_cntl |= LC_UPCONFIGURE_DIS;
+                WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
+        }
+
+        speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
+        if ((speed_cntl & LC_OTHER_SIDE_EVER_SENT_GEN2) &&
+            (speed_cntl & LC_OTHER_SIDE_SUPPORTS_GEN2)) {
+
+                tmp = RREG32(0x541c);
+                WREG32(0x541c, tmp | 0x8);
+                WREG32(MM_CFGREGS_CNTL, MM_WR_TO_CFG_EN);
+                link_cntl2 = RREG16(0x4088);
+                link_cntl2 &= ~TARGET_LINK_SPEED_MASK;
+                link_cntl2 |= 0x2;
+                WREG16(0x4088, link_cntl2);
+                WREG32(MM_CFGREGS_CNTL, 0);
+
+                speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
+                speed_cntl &= ~LC_TARGET_LINK_SPEED_OVERRIDE_EN;
+                WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
+
+                speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
+                speed_cntl |= LC_CLR_FAILED_SPD_CHANGE_CNT;
+                WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
+
+                speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
+                speed_cntl &= ~LC_CLR_FAILED_SPD_CHANGE_CNT;
+                WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
+
+                speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
+                speed_cntl |= LC_GEN2_EN_STRAP;
+                WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
+
+        } else {
+                link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL);
+                /* XXX: only disable it if gen1 bridge vendor == 0x111d or 0x1106 */
+                if (1)
+                        link_width_cntl |= LC_UPCONFIGURE_DIS;
+                else
+                        link_width_cntl &= ~LC_UPCONFIGURE_DIS;
+                WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
+        }
+}