kernel/linux.git/drivers/gpu/drm/radeon/cik.c, branch linux-7.0.y

drm/radeon/cik: Clean up doorbells

2025-05-16T17:37:21+00:00

Free doorbells in the error paths of cik_init and in cik_fini. Build tested only. Suggested-by: Christophe JAILLET Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Alex Deucher

drm/radeon: change rdev->ddev to rdev_to_drm(rdev)

2024-07-23T21:31:59+00:00

This patch changes the way "drm_device" is accessed. It uses "rdev_to_drm(rdev)" instead of accessing the struct member directly. Reviewed-by: Thomas Zimmermann Tested-by: Thomas Zimmermann Signed-off-by: Wu Hoi Pok Signed-off-by: Alex Deucher

drm/radeon: Use RMW accessors for changing LNKCTL2

2024-02-22T15:30:50+00:00

Convert open coded RMW accesses for LNKCTL2 to use pcie_capability_clear_and_set_word() which makes its easier to understand what the code tries to do. LNKCTL2 is not really owned by any driver because it is a collection of control bits that PCI core might need to touch. RMW accessors already have support for proper locking for a selected set of registers (LNKCTL2 is not yet among them but likely will be in the future) to avoid losing concurrent updates. Acked-by: Alex Deucher Suggested-by: Lukas Wunner Signed-off-by: Ilpo Järvinen Signed-off-by: Alex Deucher

Merge tag 'pci-v6.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

2023-08-31T03:23:07+00:00

Pull PCI updates from Bjorn Helgaas: "Enumeration: - Add locking to read/modify/write PCIe Capability Register accessors for Link Control and Root Control - Use pci_dev_id() when possible instead of manually composing ID from dev->bus->number and dev->devfn Resource management: - Move prototypes for __weak sysfs resource files to linux/pci.h to fix 'no previous prototype' warnings - Make more I/O port accesses depend on HAS_IOPORT - Use devm_platform_get_and_ioremap_resource() instead of open-coding platform_get_resource() followed by devm_ioremap_resource() Power management: - Ensure devices are powered up while accessing VPD - If device is powered-up, keep it that way while polling for PME - Only read PCI_PM_CTRL register when available, to avoid reading the wrong register and corrupting dev->current_state Virtualization: - Avoid Secondary Bus Reset on NVIDIA T4 GPUs Error handling: - Remove unused pci_disable_pcie_error_reporting() - Unexport pci_enable_pcie_error_reporting(), used only by aer.c - Unexport pcie_port_bus_type, used only by PCI core VGA: - Simplify and clean up typos in VGA arbiter Apple PCIe controller driver: - Initialize pcie->nvecs (number of available MSIs) before use Broadcom iProc PCIe controller driver: - Use of_property_read_bool() instead of low-level accessors for boolean properties Broadcom STB PCIe controller driver: - Assert PERST# when probing BCM2711 because some bootloaders don't do it Freescale i.MX6 PCIe controller driver: - Add .host_deinit() callback so we can clean up things like regulators on probe failure or driver unload Freescale Layerscape PCIe controller driver: - Add support for link-down notification so the endpoint driver can process LINK_DOWN events - Add suspend/resume support, including manual PME_Turn_off/PME_TO_Ack handshake - Save Link Capabilities during probe so they can be restored when handling a link-up event, since the controller loses the Link Width and Link Speed values during reset Intel VMD host bridge driver: - Fix disable of bridge windows during domain reset; previously we cleared the base/limit registers, which actually left the windows enabled Marvell MVEBU PCIe controller driver: - Remove unused busn member Microchip PolarFlare PCIe controller driver: - Fix interrupt bit definitions so the SEC and DED interrupt handlers work correctly - Make driver buildable as a module - Read FPGA MSI configuration parameters from hardware instead of hard-coding them Microsoft Hyper-V host bridge driver: - To avoid a NULL pointer dereference, skip MSI restore after hibernate if MSI/MSI-X hasn't been enabled NVIDIA Tegra194 PCIe controller driver: - Revert 'PCI: tegra194: Enable support for 256 Byte payload' because Linux doesn't know how to reduce MPS from to 256 to 128 bytes for endpoints below a switch (because other devices below the switch might already be operating), which leads to 'Malformed TLP' errors Qualcomm PCIe controller driver: - Add DT and driver support for interconnect bandwidth voting for 'pcie-mem' and 'cpu-pcie' interconnects - Fix broken SDX65 'compatible' DT property - Configure controller so MHI bus master clock will be switched off while in ASPM L1.x states - Use alignment restriction from EPF core in EPF MHI driver - Add Endpoint eDMA support - Add MHI eDMA support - Add Snapdragon SM8450 support to the EPF MHI driversupport - Add MHI eDMA support - Add Snapdragon SM8450 support to the EPF MHI driversupport - Add MHI eDMA support - Add Snapdragon SM8450 support to the EPF MHI driversupport - Add MHI eDMA support - Add Snapdragon SM8450 support to the EPF MHI driver - Use iATU for EPF MHI transfers smaller than 4K to avoid eDMA setup latency - Add sa8775p DT binding and driver support Rockchip PCIe controller driver: - Use 64-bit mask on MSI 64-bit PCI address to avoid zeroing out the upper 32 bits SiFive FU740 PCIe controller driver: - Set the supported number of MSI vectors so we can use all available MSI interrupts Synopsys DesignWare PCIe controller driver: - Add generic dwc suspend/resume APIs (dw_pcie_suspend_noirq() and dw_pcie_resume_noirq()) to be called by controller driver suspend/resume ops, and a controller callback to send PME_Turn_Off MicroSemi Switchtec management driver: - Add support for PCIe Gen5 devices Miscellaneous: - Reorder and compress to reduce size of struct pci_dev - Fix race in DOE destroy_work_on_stack() - Add stubs to avoid casts between incompatible function types - Explicitly include correct DT includes to untangle headers" * tag 'pci-v6.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (96 commits) PCI: qcom-ep: Add ICC bandwidth voting support dt-bindings: PCI: qcom: ep: Add interconnects path PCI: qcom-ep: Treat unknown IRQ events as an error dt-bindings: PCI: qcom: Fix SDX65 compatible PCI: endpoint: Add kernel-doc for pci_epc_mem_init() API PCI: epf-mhi: Use iATU for small transfers PCI: epf-mhi: Add support for SM8450 PCI: epf-mhi: Add eDMA support PCI: qcom-ep: Add eDMA support PCI: epf-mhi: Make use of the alignment restriction from EPF core PCI/PM: Only read PCI_PM_CTRL register when available PCI: qcom: Add support for sa8775p SoC dt-bindings: PCI: qcom: Add sa8775p compatible PCI: qcom-ep: Pass alignment restriction to the EPF core PCI: Simplify pcie_capability_clear_and_set_word() control flow PCI: Tidy config space save/restore messages PCI: Fix code formatting inconsistencies PCI: Fix typos in docs and comments PCI: Fix pci_bus_resetable(), pci_slot_resetable() name typos PCI: Simplify pci_dev_driver() ...

drm/radeon: Use RMW accessors for changing LNKCTL

2023-08-21T19:11:46+00:00

Don't assume that only the driver would be accessing LNKCTL. ASPM policy changes can trigger write to LNKCTL outside of driver's control. And in the case of upstream bridge, the driver does not even own the device it's changing the registers for. Use RMW capability accessors which do proper locking to avoid losing concurrent updates to the register value. Suggested-by: Lukas Wunner Fixes: 8a7cd27679d0 ("drm/radeon/cik: add support for pcie gen1/2/3 switching") Fixes: b9d305dfb66c ("drm/radeon: implement pcie gen2/3 support for SI") Link: https://lore.kernel.org/r/20230717120503.15276-7-ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen Signed-off-by: Bjorn Helgaas Acked-by: Alex Deucher

drm: Spelling s/sempahore/semaphore/

2023-07-29T19:05:10+00:00

Fix misspellings of "semaphore". Signed-off-by: Geert Uytterhoeven Reviewed-by: Hamza Mahfooz Acked-by: Rodrigo Vivi Signed-off-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/8b0542c12a2427f34a792c41ac2d2a2922874bfa.1689600102.git.geert+renesas@glider.be

drm/radeon: fix UVD suspend error

2022-01-18T22:43:36+00:00

I met a bug recently and the kernel log: [ 330.171875] radeon 0000:03:00.0: couldn't schedule ib [ 330.175781] [drm:radeon_uvd_suspend [radeon]] *ERROR* Error destroying UVD (-22)! In radeon drivers, using UVD suspend is as follows: if (rdev->has_uvd) { uvd_v1_0_fini(rdev); radeon_uvd_suspend(rdev); } In radeon_ib_schedule function, we check the 'ring->ready' state, but in uvd_v1_0_fini funciton, we've cleared the ready state. So, just modify the suspend code flow to fix error. Reviewed-by: Leo Liu Signed-off-by: Qiang Ma Signed-off-by: Alex Deucher

drm/radeon: delete useless function return values & remove meaningless if(r) check code

2021-06-22T20:51:45+00:00

Function radeon_fence_driver_init always returns success, the function type maybe coule be changed to void. This patch first delete the check of the return value of the function call radeon_fence_driver_init, then, optimise the function declaration and function to void type. Reviewed-by: Christian König Signed-off-by: Bernard Zhao Signed-off-by: Alex Deucher

drm/radeon/cik: Fix incorrectly named function 'cik_irq_suspend()'

2021-05-21T14:32:15+00:00

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/radeon/cik.c:7450: warning: expecting prototype for cik_irq_disable(). Prototype was for cik_irq_suspend() instead Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: Sumit Semwal Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

drm/radeon/cik: remove set but not used variables

2021-04-15T20:32:45+00:00

The value of pipe_id and queue_id are not used under certain circumstances, so just delete. Signed-off-by: Tian Tao Signed-off-by: Alex Deucher