From 12097c6d67ba851d7eea7ab82b7ba70019347bfd Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 6 Jul 2017 13:38:09 -0400 Subject: [PATCH] drm/amdgpu: add nbio 6.1 register init function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Used for nbio registers that need to be initialized. Currently only used for a golden setting that got missed on some boards. Acked-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c | 13 +++++++++++++ drivers/gpu/drm/amd/amdgpu/nbio_v6_1.h | 1 + 2 files changed, 14 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c index 61c00281a61b..045988b18bc3 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c @@ -32,6 +32,7 @@ #define smnCPM_CONTROL 0x11180460 #define smnPCIE_CNTL2 0x11180070 +#define smnPCIE_CONFIG_CNTL 0x11180044 u32 nbio_v6_1_get_rev_id(struct amdgpu_device *adev) { @@ -256,3 +257,15 @@ void nbio_v6_1_detect_hw_virt(struct amdgpu_device *adev) adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE; } } + +void nbio_v6_1_init_registers(struct amdgpu_device *adev) +{ + uint32_t def, data; + + def = data = RREG32_PCIE(smnPCIE_CONFIG_CNTL); + data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL, CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1); + data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL, CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1); + + if (def != data) + WREG32_PCIE(smnPCIE_CONFIG_CNTL, data); +} diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.h b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.h index f6f8bc045518..686e4b4d296a 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.h +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.h @@ -50,5 +50,6 @@ void nbio_v6_1_update_medium_grain_clock_gating(struct amdgpu_device *adev, bool void nbio_v6_1_update_medium_grain_light_sleep(struct amdgpu_device *adev, bool enable); void nbio_v6_1_get_clockgating_state(struct amdgpu_device *adev, u32 *flags); void nbio_v6_1_detect_hw_virt(struct amdgpu_device *adev); +void nbio_v6_1_init_registers(struct amdgpu_device *adev); #endif