diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index fb5fa089886..e8a746712b5 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -41,6 +41,31 @@ static void evergreen_gpu_init(struct radeon_device *rdev); void evergreen_fini(struct radeon_device *rdev); static void evergreen_pcie_gen2_enable(struct radeon_device *rdev); +void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev) +{ + u16 ctl, v; + int cap, err; + + cap = pci_pcie_cap(rdev->pdev); + if (!cap) + return; + + err = pci_read_config_word(rdev->pdev, cap + PCI_EXP_DEVCTL, &ctl); + if (err) + return; + + v = (ctl & PCI_EXP_DEVCTL_READRQ) >> 12; + + /* if bios or OS sets MAX_READ_REQUEST_SIZE to an invalid value, fix it + * to avoid hangs or perfomance issues + */ + if ((v == 0) || (v == 6) || (v == 7)) { + ctl &= ~PCI_EXP_DEVCTL_READRQ; + ctl |= (2 << 12); + pci_write_config_word(rdev->pdev, cap + PCI_EXP_DEVCTL, ctl); + } +} + void evergreen_pre_page_flip(struct radeon_device *rdev, int crtc) { /* enable the pflip int */ @@ -1357,6 +1382,7 @@ int evergreen_cp_resume(struct radeon_device *rdev) SOFT_RESET_PA | SOFT_RESET_SH | SOFT_RESET_VGT | + SOFT_RESET_SPI | SOFT_RESET_SX)); RREG32(GRBM_SOFT_RESET); mdelay(15); @@ -1378,7 +1404,8 @@ int evergreen_cp_resume(struct radeon_device *rdev) /* Initialize the ring buffer's read and write pointers */ WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA); WREG32(CP_RB_RPTR_WR, 0); - WREG32(CP_RB_WPTR, 0); + rdev->cp.wptr = 0; + WREG32(CP_RB_WPTR, rdev->cp.wptr); /* set the wb address wether it's enabled or not */ WREG32(CP_RB_RPTR_ADDR, @@ -1400,7 +1427,6 @@ int evergreen_cp_resume(struct radeon_device *rdev) WREG32(CP_DEBUG, (1 << 27) | (1 << 28)); rdev->cp.rptr = RREG32(CP_RB_RPTR); - rdev->cp.wptr = RREG32(CP_RB_WPTR); evergreen_cp_start(rdev); rdev->cp.ready = true; @@ -1862,6 +1888,8 @@ static void evergreen_gpu_init(struct radeon_device *rdev) WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff)); + evergreen_fix_pci_max_read_req_size(rdev); + cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG) & ~2; cc_gc_shader_pipe_config |= @@ -3143,21 +3171,23 @@ int evergreen_suspend(struct radeon_device *rdev) } int evergreen_copy_blit(struct radeon_device *rdev, - uint64_t src_offset, uint64_t dst_offset, - unsigned num_pages, struct radeon_fence *fence) + uint64_t src_offset, + uint64_t dst_offset, + unsigned num_gpu_pages, + struct radeon_fence *fence) { int r; mutex_lock(&rdev->r600_blit.mutex); rdev->r600_blit.vb_ib = NULL; - r = evergreen_blit_prepare_copy(rdev, num_pages * RADEON_GPU_PAGE_SIZE); + r = evergreen_blit_prepare_copy(rdev, num_gpu_pages * RADEON_GPU_PAGE_SIZE); if (r) { if (rdev->r600_blit.vb_ib) radeon_ib_free(rdev, &rdev->r600_blit.vb_ib); mutex_unlock(&rdev->r600_blit.mutex); return r; } - evergreen_kms_blit_copy(rdev, src_offset, dst_offset, num_pages * RADEON_GPU_PAGE_SIZE); + evergreen_kms_blit_copy(rdev, src_offset, dst_offset, num_gpu_pages * RADEON_GPU_PAGE_SIZE); evergreen_blit_done_copy(rdev, fence); mutex_unlock(&rdev->r600_blit.mutex); return 0; |