diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/r600.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 404 |
1 files changed, 342 insertions, 62 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 0740db3fcd2..1a08008c978 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1145,7 +1145,7 @@ static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc } if (rdev->flags & RADEON_IS_AGP) { size_bf = mc->gtt_start; - size_af = 0xFFFFFFFF - mc->gtt_end; + size_af = mc->mc_mask - mc->gtt_end; if (size_bf > size_af) { if (mc->mc_vram_size > size_bf) { dev_warn(rdev->dev, "limiting VRAM\n"); @@ -2552,6 +2552,193 @@ void r600_dma_fini(struct radeon_device *rdev) } /* + * UVD + */ +int r600_uvd_rbc_start(struct radeon_device *rdev) +{ + struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX]; + uint64_t rptr_addr; + uint32_t rb_bufsz, tmp; + int r; + + rptr_addr = rdev->wb.gpu_addr + R600_WB_UVD_RPTR_OFFSET; + + if (upper_32_bits(rptr_addr) != upper_32_bits(ring->gpu_addr)) { + DRM_ERROR("UVD ring and rptr not in the same 4GB segment!\n"); + return -EINVAL; + } + + /* force RBC into idle state */ + WREG32(UVD_RBC_RB_CNTL, 0x11010101); + + /* Set the write pointer delay */ + WREG32(UVD_RBC_RB_WPTR_CNTL, 0); + + /* set the wb address */ + WREG32(UVD_RBC_RB_RPTR_ADDR, rptr_addr >> 2); + + /* programm the 4GB memory segment for rptr and ring buffer */ + WREG32(UVD_LMI_EXT40_ADDR, upper_32_bits(rptr_addr) | + (0x7 << 16) | (0x1 << 31)); + + /* Initialize the ring buffer's read and write pointers */ + WREG32(UVD_RBC_RB_RPTR, 0x0); + + ring->wptr = ring->rptr = RREG32(UVD_RBC_RB_RPTR); + WREG32(UVD_RBC_RB_WPTR, ring->wptr); + + /* set the ring address */ + WREG32(UVD_RBC_RB_BASE, ring->gpu_addr); + + /* Set ring buffer size */ + rb_bufsz = drm_order(ring->ring_size); + rb_bufsz = (0x1 << 8) | rb_bufsz; + WREG32(UVD_RBC_RB_CNTL, rb_bufsz); + + ring->ready = true; + r = radeon_ring_test(rdev, R600_RING_TYPE_UVD_INDEX, ring); + if (r) { + ring->ready = false; + return r; + } + + r = radeon_ring_lock(rdev, ring, 10); + if (r) { + DRM_ERROR("radeon: ring failed to lock UVD ring (%d).\n", r); + return r; + } + + tmp = PACKET0(UVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0); + radeon_ring_write(ring, tmp); + radeon_ring_write(ring, 0xFFFFF); + + tmp = PACKET0(UVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0); + radeon_ring_write(ring, tmp); + radeon_ring_write(ring, 0xFFFFF); + + tmp = PACKET0(UVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0); + radeon_ring_write(ring, tmp); + radeon_ring_write(ring, 0xFFFFF); + + /* Clear timeout status bits */ + radeon_ring_write(ring, PACKET0(UVD_SEMA_TIMEOUT_STATUS, 0)); + radeon_ring_write(ring, 0x8); + + radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0)); + radeon_ring_write(ring, 3); + + radeon_ring_unlock_commit(rdev, ring); + + return 0; +} + +void r600_uvd_rbc_stop(struct radeon_device *rdev) +{ + struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX]; + + /* force RBC into idle state */ + WREG32(UVD_RBC_RB_CNTL, 0x11010101); + ring->ready = false; +} + +int r600_uvd_init(struct radeon_device *rdev) +{ + int i, j, r; + + /* raise clocks while booting up the VCPU */ + radeon_set_uvd_clocks(rdev, 53300, 40000); + + /* disable clock gating */ + WREG32(UVD_CGC_GATE, 0); + + /* disable interupt */ + WREG32_P(UVD_MASTINT_EN, 0, ~(1 << 1)); + + /* put LMI, VCPU, RBC etc... into reset */ + WREG32(UVD_SOFT_RESET, LMI_SOFT_RESET | VCPU_SOFT_RESET | + LBSI_SOFT_RESET | RBC_SOFT_RESET | CSM_SOFT_RESET | + CXW_SOFT_RESET | TAP_SOFT_RESET | LMI_UMC_SOFT_RESET); + mdelay(5); + + /* take UVD block out of reset */ + WREG32_P(SRBM_SOFT_RESET, 0, ~SOFT_RESET_UVD); + mdelay(5); + + /* initialize UVD memory controller */ + WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) | + (1 << 21) | (1 << 9) | (1 << 20)); + + /* disable byte swapping */ + WREG32(UVD_LMI_SWAP_CNTL, 0); + WREG32(UVD_MP_SWAP_CNTL, 0); + + WREG32(UVD_MPC_SET_MUXA0, 0x40c2040); + WREG32(UVD_MPC_SET_MUXA1, 0x0); + WREG32(UVD_MPC_SET_MUXB0, 0x40c2040); + WREG32(UVD_MPC_SET_MUXB1, 0x0); + WREG32(UVD_MPC_SET_ALU, 0); + WREG32(UVD_MPC_SET_MUX, 0x88); + + /* Stall UMC */ + WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8)); + WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3)); + + /* take all subblocks out of reset, except VCPU */ + WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET); + mdelay(5); + + /* enable VCPU clock */ + WREG32(UVD_VCPU_CNTL, 1 << 9); + + /* enable UMC */ + WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8)); + + /* boot up the VCPU */ + WREG32(UVD_SOFT_RESET, 0); + mdelay(10); + + WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3)); + + for (i = 0; i < 10; ++i) { + uint32_t status; + for (j = 0; j < 100; ++j) { + status = RREG32(UVD_STATUS); + if (status & 2) + break; + mdelay(10); + } + r = 0; + if (status & 2) + break; + + DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n"); + WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET); + mdelay(10); + WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET); + mdelay(10); + r = -1; + } + + if (r) { + DRM_ERROR("UVD not responding, giving up!!!\n"); + radeon_set_uvd_clocks(rdev, 0, 0); + return r; + } + + /* enable interupt */ + WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1)); + + r = r600_uvd_rbc_start(rdev); + if (!r) + DRM_INFO("UVD initialized successfully.\n"); + + /* lower clocks again */ + radeon_set_uvd_clocks(rdev, 0, 0); + + return r; +} + +/* * GPU scratch registers helpers function. */ void r600_scratch_init(struct radeon_device *rdev) @@ -2660,6 +2847,40 @@ int r600_dma_ring_test(struct radeon_device *rdev, return r; } +int r600_uvd_ring_test(struct radeon_device *rdev, struct radeon_ring *ring) +{ + uint32_t tmp = 0; + unsigned i; + int r; + + WREG32(UVD_CONTEXT_ID, 0xCAFEDEAD); + r = radeon_ring_lock(rdev, ring, 3); + if (r) { + DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n", + ring->idx, r); + return r; + } + radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0)); + radeon_ring_write(ring, 0xDEADBEEF); + radeon_ring_unlock_commit(rdev, ring); + for (i = 0; i < rdev->usec_timeout; i++) { + tmp = RREG32(UVD_CONTEXT_ID); + if (tmp == 0xDEADBEEF) + break; + DRM_UDELAY(1); + } + + if (i < rdev->usec_timeout) { + DRM_INFO("ring test on %d succeeded in %d usecs\n", + ring->idx, i); + } else { + DRM_ERROR("radeon: ring %d test failed (0x%08X)\n", + ring->idx, tmp); + r = -EINVAL; + } + return r; +} + /* * CP fences/semaphores */ @@ -2711,6 +2932,30 @@ void r600_fence_ring_emit(struct radeon_device *rdev, } } +void r600_uvd_fence_emit(struct radeon_device *rdev, + struct radeon_fence *fence) +{ + struct radeon_ring *ring = &rdev->ring[fence->ring]; + uint32_t addr = rdev->fence_drv[fence->ring].gpu_addr; + + radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0)); + radeon_ring_write(ring, fence->seq); + radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0)); + radeon_ring_write(ring, addr & 0xffffffff); + radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0)); + radeon_ring_write(ring, upper_32_bits(addr) & 0xff); + radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0)); + radeon_ring_write(ring, 0); + + radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0)); + radeon_ring_write(ring, 0); + radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0)); + radeon_ring_write(ring, 0); + radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0)); + radeon_ring_write(ring, 2); + return; +} + void r600_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, @@ -2780,6 +3025,23 @@ void r600_dma_semaphore_ring_emit(struct radeon_device *rdev, radeon_ring_write(ring, upper_32_bits(addr) & 0xff); } +void r600_uvd_semaphore_emit(struct radeon_device *rdev, + struct radeon_ring *ring, + struct radeon_semaphore *semaphore, + bool emit_wait) +{ + uint64_t addr = semaphore->gpu_addr; + + radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0)); + radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF); + + radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0)); + radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF); + + radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0)); + radeon_ring_write(ring, emit_wait ? 1 : 0); +} + int r600_copy_blit(struct radeon_device *rdev, uint64_t src_offset, uint64_t dst_offset, @@ -3183,6 +3445,16 @@ void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib) radeon_ring_write(ring, ib->length_dw); } +void r600_uvd_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib) +{ + struct radeon_ring *ring = &rdev->ring[ib->ring]; + + radeon_ring_write(ring, PACKET0(UVD_RBC_IB_BASE, 0)); + radeon_ring_write(ring, ib->gpu_addr); + radeon_ring_write(ring, PACKET0(UVD_RBC_IB_SIZE, 0)); + radeon_ring_write(ring, ib->length_dw); +} + int r600_ib_test(struct radeon_device *rdev, struct radeon_ring *ring) { struct radeon_ib ib; @@ -3300,6 +3572,41 @@ int r600_dma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring) return r; } +int r600_uvd_ib_test(struct radeon_device *rdev, struct radeon_ring *ring) +{ + struct radeon_fence *fence = NULL; + int r; + + r = radeon_set_uvd_clocks(rdev, 53300, 40000); + if (r) { + DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r); + return r; + } + + r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL); + if (r) { + DRM_ERROR("radeon: failed to get create msg (%d).\n", r); + goto error; + } + + r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence); + if (r) { + DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r); + goto error; + } + + r = radeon_fence_wait(fence, false); + if (r) { + DRM_ERROR("radeon: fence wait failed (%d).\n", r); + goto error; + } + DRM_INFO("ib test on ring %d succeeded\n", ring->idx); +error: + radeon_fence_unref(&fence); + radeon_set_uvd_clocks(rdev, 0, 0); + return r; +} + /** * r600_dma_ring_ib_execute - Schedule an IB on the DMA engine * @@ -4232,7 +4539,7 @@ void r600_ioctl_wait_idle(struct radeon_device *rdev, struct radeon_bo *bo) void r600_set_pcie_lanes(struct radeon_device *rdev, int lanes) { - u32 link_width_cntl, mask, target_reg; + u32 link_width_cntl, mask; if (rdev->flags & RADEON_IS_IGP) return; @@ -4244,7 +4551,7 @@ void r600_set_pcie_lanes(struct radeon_device *rdev, int lanes) if (ASIC_IS_X2(rdev)) return; - /* FIXME wait for idle */ + radeon_gui_idle(rdev); switch (lanes) { case 0: @@ -4263,53 +4570,24 @@ void r600_set_pcie_lanes(struct radeon_device *rdev, int lanes) mask = RADEON_PCIE_LC_LINK_WIDTH_X8; break; case 12: + /* not actually supported */ mask = RADEON_PCIE_LC_LINK_WIDTH_X12; break; case 16: - default: mask = RADEON_PCIE_LC_LINK_WIDTH_X16; break; - } - - link_width_cntl = RREG32_PCIE_P(RADEON_PCIE_LC_LINK_WIDTH_CNTL); - - if ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) == - (mask << RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT)) - return; - - if (link_width_cntl & R600_PCIE_LC_UPCONFIGURE_DIS) + default: + DRM_ERROR("invalid pcie lane request: %d\n", lanes); return; + } - link_width_cntl &= ~(RADEON_PCIE_LC_LINK_WIDTH_MASK | - RADEON_PCIE_LC_RECONFIG_NOW | - R600_PCIE_LC_RENEGOTIATE_EN | - R600_PCIE_LC_RECONFIG_ARC_MISSING_ESCAPE); - link_width_cntl |= mask; - - WREG32_PCIE_P(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl); - - /* some northbridges can renegotiate the link rather than requiring - * a complete re-config. - * e.g., AMD 780/790 northbridges (pci ids: 0x5956, 0x5957, 0x5958, etc.) - */ - if (link_width_cntl & R600_PCIE_LC_RENEGOTIATION_SUPPORT) - link_width_cntl |= R600_PCIE_LC_RENEGOTIATE_EN | R600_PCIE_LC_UPCONFIGURE_SUPPORT; - else - link_width_cntl |= R600_PCIE_LC_RECONFIG_ARC_MISSING_ESCAPE; - - WREG32_PCIE_P(RADEON_PCIE_LC_LINK_WIDTH_CNTL, (link_width_cntl | - RADEON_PCIE_LC_RECONFIG_NOW)); - - if (rdev->family >= CHIP_RV770) - target_reg = R700_TARGET_AND_CURRENT_PROFILE_INDEX; - else - target_reg = R600_TARGET_AND_CURRENT_PROFILE_INDEX; - - /* wait for lane set to complete */ - link_width_cntl = RREG32(target_reg); - while (link_width_cntl == 0xffffffff) - link_width_cntl = RREG32(target_reg); + link_width_cntl = RREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL); + link_width_cntl &= ~RADEON_PCIE_LC_LINK_WIDTH_MASK; + link_width_cntl |= mask << RADEON_PCIE_LC_LINK_WIDTH_SHIFT; + link_width_cntl |= (RADEON_PCIE_LC_RECONFIG_NOW | + R600_PCIE_LC_RECONFIG_ARC_MISSING_ESCAPE); + WREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl); } int r600_get_pcie_lanes(struct radeon_device *rdev) @@ -4326,13 +4604,11 @@ int r600_get_pcie_lanes(struct radeon_device *rdev) if (ASIC_IS_X2(rdev)) return 0; - /* FIXME wait for idle */ + radeon_gui_idle(rdev); - link_width_cntl = RREG32_PCIE_P(RADEON_PCIE_LC_LINK_WIDTH_CNTL); + link_width_cntl = RREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL); switch ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) >> RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT) { - case RADEON_PCIE_LC_LINK_WIDTH_X0: - return 0; case RADEON_PCIE_LC_LINK_WIDTH_X1: return 1; case RADEON_PCIE_LC_LINK_WIDTH_X2: @@ -4341,6 +4617,10 @@ int r600_get_pcie_lanes(struct radeon_device *rdev) return 4; case RADEON_PCIE_LC_LINK_WIDTH_X8: return 8; + case RADEON_PCIE_LC_LINK_WIDTH_X12: + /* not actually supported */ + return 12; + case RADEON_PCIE_LC_LINK_WIDTH_X0: case RADEON_PCIE_LC_LINK_WIDTH_X16: default: return 16; @@ -4378,7 +4658,7 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev) if (!(mask & DRM_PCIE_SPEED_50)) return; - speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL); + speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL); if (speed_cntl & LC_CURRENT_DATA_RATE) { DRM_INFO("PCIE gen 2 link speeds already enabled\n"); return; @@ -4391,23 +4671,23 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev) (rdev->family == CHIP_RV620) || (rdev->family == CHIP_RV635)) { /* advertise upconfig capability */ - link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL); + link_width_cntl = RREG32_PCIE_PORT(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); + WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl); + link_width_cntl = RREG32_PCIE_PORT(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; - WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl); + WREG32_PCIE_PORT(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); + WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl); } } - speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL); + speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL); if ((speed_cntl & LC_OTHER_SIDE_EVER_SENT_GEN2) && (speed_cntl & LC_OTHER_SIDE_SUPPORTS_GEN2)) { @@ -4428,7 +4708,7 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev) speed_cntl &= ~LC_VOLTAGE_TIMER_SEL_MASK; speed_cntl &= ~LC_FORCE_DIS_HW_SPEED_CHANGE; speed_cntl |= LC_FORCE_EN_HW_SPEED_CHANGE; - WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl); + WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl); tmp = RREG32(0x541c); WREG32(0x541c, tmp | 0x8); @@ -4442,27 +4722,27 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev) if ((rdev->family == CHIP_RV670) || (rdev->family == CHIP_RV620) || (rdev->family == CHIP_RV635)) { - training_cntl = RREG32_PCIE_P(PCIE_LC_TRAINING_CNTL); + training_cntl = RREG32_PCIE_PORT(PCIE_LC_TRAINING_CNTL); training_cntl &= ~LC_POINT_7_PLUS_EN; - WREG32_PCIE_P(PCIE_LC_TRAINING_CNTL, training_cntl); + WREG32_PCIE_PORT(PCIE_LC_TRAINING_CNTL, training_cntl); } else { - speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL); + speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL); speed_cntl &= ~LC_TARGET_LINK_SPEED_OVERRIDE_EN; - WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl); + WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl); } - speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL); + speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL); speed_cntl |= LC_GEN2_EN_STRAP; - WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl); + WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl); } else { - link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL); + link_width_cntl = RREG32_PCIE_PORT(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); + WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl); } } |