drm/amdgpu: use pcie functions for link width and speed
Use the newly exported pci functions to get the link width and speed rather than using the drm duplicated versions. Also query the GPU link caps directly rather than hardcoding them. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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5d9a633040
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@ -3311,8 +3311,9 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
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*/
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static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev)
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{
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u32 mask;
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int ret;
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struct pci_dev *pdev;
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enum pci_bus_speed speed_cap;
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enum pcie_link_width link_width;
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if (amdgpu_pcie_gen_cap)
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adev->pm.pcie_gen_mask = amdgpu_pcie_gen_cap;
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@ -3330,27 +3331,61 @@ static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev)
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}
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if (adev->pm.pcie_gen_mask == 0) {
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ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask);
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if (!ret) {
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adev->pm.pcie_gen_mask = (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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/* asic caps */
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pdev = adev->pdev;
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speed_cap = pcie_get_speed_cap(pdev);
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if (speed_cap == PCI_SPEED_UNKNOWN) {
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adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
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CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
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if (mask & DRM_PCIE_SPEED_25)
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adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
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if (mask & DRM_PCIE_SPEED_50)
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adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2;
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if (mask & DRM_PCIE_SPEED_80)
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adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3;
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} else {
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adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK;
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if (speed_cap == PCIE_SPEED_16_0GT)
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adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
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CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3 |
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CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4);
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else if (speed_cap == PCIE_SPEED_8_0GT)
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adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
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CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
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else if (speed_cap == PCIE_SPEED_5_0GT)
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adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2);
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else
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adev->pm.pcie_gen_mask |= CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1;
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}
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/* platform caps */
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pdev = adev->ddev->pdev->bus->self;
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speed_cap = pcie_get_speed_cap(pdev);
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if (speed_cap == PCI_SPEED_UNKNOWN) {
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adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2);
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} else {
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if (speed_cap == PCIE_SPEED_16_0GT)
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adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
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CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 |
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CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4);
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else if (speed_cap == PCIE_SPEED_8_0GT)
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adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
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CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3);
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else if (speed_cap == PCIE_SPEED_5_0GT)
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adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
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CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2);
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else
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adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
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}
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}
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if (adev->pm.pcie_mlw_mask == 0) {
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ret = drm_pcie_get_max_link_width(adev->ddev, &mask);
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if (!ret) {
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switch (mask) {
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case 32:
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pdev = adev->ddev->pdev->bus->self;
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link_width = pcie_get_width_cap(pdev);
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if (link_width == PCIE_LNK_WIDTH_UNKNOWN) {
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adev->pm.pcie_mlw_mask |= AMDGPU_DEFAULT_PCIE_MLW_MASK;
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} else {
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switch (link_width) {
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case PCIE_LNK_X32:
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adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
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@ -3359,7 +3394,7 @@ static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev)
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
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break;
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case 16:
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case PCIE_LNK_X16:
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adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
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@ -3367,36 +3402,34 @@ static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev)
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
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break;
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case 12:
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case PCIE_LNK_X12:
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adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
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break;
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case 8:
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case PCIE_LNK_X8:
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adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
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break;
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case 4:
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case PCIE_LNK_X4:
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adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
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break;
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case 2:
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case PCIE_LNK_X2:
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adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
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CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
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break;
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case 1:
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case PCIE_LNK_X1:
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adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1;
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break;
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default:
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break;
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}
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} else {
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adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK;
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}
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}
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}
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@ -28,6 +28,7 @@
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#include "amdgpu_i2c.h"
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#include "amdgpu_dpm.h"
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#include "atom.h"
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#include "amd_pcie.h"
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void amdgpu_dpm_print_class_info(u32 class, u32 class2)
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{
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@ -936,9 +937,11 @@ enum amdgpu_pcie_gen amdgpu_get_pcie_gen_support(struct amdgpu_device *adev,
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case AMDGPU_PCIE_GEN3:
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return AMDGPU_PCIE_GEN3;
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default:
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if ((sys_mask & DRM_PCIE_SPEED_80) && (default_gen == AMDGPU_PCIE_GEN3))
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if ((sys_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3) &&
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(default_gen == AMDGPU_PCIE_GEN3))
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return AMDGPU_PCIE_GEN3;
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else if ((sys_mask & DRM_PCIE_SPEED_50) && (default_gen == AMDGPU_PCIE_GEN2))
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else if ((sys_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2) &&
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(default_gen == AMDGPU_PCIE_GEN2))
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return AMDGPU_PCIE_GEN2;
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else
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return AMDGPU_PCIE_GEN1;
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@ -5846,8 +5846,7 @@ static int ci_dpm_init(struct amdgpu_device *adev)
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adev->pm.dpm.priv = pi;
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pi->sys_pcie_mask =
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(adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) >>
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CAIL_PCIE_LINK_SPEED_SUPPORT_SHIFT;
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adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_MASK;
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pi->force_pcie_gen = AMDGPU_PCIE_GEN_INVALID;
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@ -7318,8 +7318,7 @@ static int si_dpm_init(struct amdgpu_device *adev)
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pi = &eg_pi->rv7xx;
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si_pi->sys_pcie_mask =
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(adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) >>
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CAIL_PCIE_LINK_SPEED_SUPPORT_SHIFT;
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adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_MASK;
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si_pi->force_pcie_gen = AMDGPU_PCIE_GEN_INVALID;
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si_pi->boot_pcie_gen = si_get_current_pcie_speed(adev);
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