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Commit c11592fe authored by Yijing Wang's avatar Yijing Wang Committed by Bjorn Helgaas
Browse files

drm/radeon: use pcie_get_readrq() and pcie_set_readrq() to simplify code 



Use pcie_get_readrq() and pcie_set_readrq() functions to simplify code.

Signed-off-by: default avatarYijing Wang <wangyijing@huawei.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 9db008d0

drivers/gpu/drm/radeon/evergreen.c

+6 −13
Original line number Diff line number Diff line
@@ -1174,23 +1174,16 @@ int evergreen_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk) 


void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)

{

	u16 ctl, v;

	int err;



	err = pcie_capability_read_word(rdev->pdev, PCI_EXP_DEVCTL, &ctl);

	if (err)

		return;



	v = (ctl & PCI_EXP_DEVCTL_READRQ) >> 12;

	int readrq;

	u16 v;



	readrq = pcie_get_readrq(rdev->pdev);

	v = ffs(readrq) - 8;

	/* 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);

		pcie_capability_write_word(rdev->pdev, PCI_EXP_DEVCTL, ctl);

	}

	if ((v == 0) || (v == 6) || (v == 7))

		pcie_set_readrq(rdev->pdev, 512);

}



static bool dce4_is_in_vblank(struct radeon_device *rdev, int crtc)