From: Le Ma Date: Wed, 19 Sep 2018 06:17:37 +0000 (+0800) Subject: drm/amdgpu: support sdma 2~7 doorbell range register offset X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3d81f67a1b1bfc789651e02dfe9705bb8483f133;p=openwrt%2Fstaging%2Fblogic.git drm/amdgpu: support sdma 2~7 doorbell range register offset Update the doorbell range registers to support additional SDMA rings. Signed-off-by: Le Ma Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c index 2e1098c5c32b..fc45eaeaba6e 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c @@ -86,10 +86,24 @@ static u32 nbio_v7_4_get_memsize(struct amdgpu_device *adev) static void nbio_v7_4_sdma_doorbell_range(struct amdgpu_device *adev, int instance, bool use_doorbell, int doorbell_index, int doorbell_size) { - u32 reg = instance == 0 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE) : - SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE); + u32 reg, doorbell_range; - u32 doorbell_range = RREG32(reg); + if (instance < 2) + reg = instance + + SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE); + else + /* + * These registers address of SDMA2~7 is not consecutive + * from SDMA0~1. Need plus 4 dwords offset. + * + * BIF_SDMA0_DOORBELL_RANGE: 0x3bc0 + * BIF_SDMA1_DOORBELL_RANGE: 0x3bc4 + * BIF_SDMA2_DOORBELL_RANGE: 0x3bd8 + */ + reg = instance + 0x4 + + SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE); + + doorbell_range = RREG32(reg); if (use_doorbell) { doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index);