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drm/amdgpu: Add the HDP flush support for Navi 

The HDP flush support code was missing in the nbio and nv files.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yong Zhao 2019-09-27 23:30:05 -04:00 committed by Alex Deucher
parent e392c887df
commit 923c087a1f
2 changed files with 22 additions and 3 deletions
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16
drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c
View File

@ -27,11 +27,21 @@
#include "nbio/nbio_2_3_default.h"
#include "nbio/nbio_2_3_offset.h"
#include "nbio/nbio_2_3_sh_mask.h"
#include <uapi/linux/kfd_ioctl.h>
#define smnPCIE_CONFIG_CNTL 0x11180044
#define smnCPM_CONTROL 0x11180460
#define smnPCIE_CNTL2 0x11180070
static void nbio_v2_3_remap_hdp_registers(struct amdgpu_device *adev)
{
WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL,
adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
WREG32_SOC15(NBIO, 0, mmREMAP_HDP_REG_FLUSH_CNTL,
adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
}
static u32 nbio_v2_3_get_rev_id(struct amdgpu_device *adev)
{
u32 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0);
@ -56,10 +66,9 @@ static void nbio_v2_3_hdp_flush(struct amdgpu_device *adev,
struct amdgpu_ring *ring)
{
if (!ring || !ring->funcs->emit_wreg)
WREG32_SOC15_NO_KIQ(NBIO, 0, mmBIF_BX_PF_HDP_MEM_COHERENCY_FLUSH_CNTL, 0);
WREG32_NO_KIQ((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
else
amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET(
NBIO, 0, mmBIF_BX_PF_HDP_MEM_COHERENCY_FLUSH_CNTL), 0);
amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
}
static u32 nbio_v2_3_get_memsize(struct amdgpu_device *adev)
@ -330,4 +339,5 @@ const struct amdgpu_nbio_funcs nbio_v2_3_funcs = {
.ih_control = nbio_v2_3_ih_control,
.init_registers = nbio_v2_3_init_registers,
.detect_hw_virt = nbio_v2_3_detect_hw_virt,
.remap_hdp_registers = nbio_v2_3_remap_hdp_registers,
};

9
drivers/gpu/drm/amd/amdgpu/nv.c
View File

@ -587,8 +587,11 @@ static const struct amdgpu_asic_funcs nv_asic_funcs =
static int nv_common_early_init(void *handle)
{
#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
adev->smc_rreg = NULL;
adev->smc_wreg = NULL;
adev->pcie_rreg = &nv_pcie_rreg;
@ -714,6 +717,12 @@ static int nv_common_hw_init(void *handle)
nv_program_aspm(adev);
/* setup nbio registers */
adev->nbio.funcs->init_registers(adev);
/* remap HDP registers to a hole in mmio space,
* for the purpose of expose those registers
* to process space
*/
if (adev->nbio.funcs->remap_hdp_registers)
adev->nbio.funcs->remap_hdp_registers(adev);
/* enable the doorbell aperture */
nv_enable_doorbell_aperture(adev, true);