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drm/i915/gvt: move cfg space inititation function to cfg_space.c 

Move the configuration space inititation function setup_vgpu_cfg_space()
in vgpu.c to dedicated source file cfg_space.c, and rename the function
as intel_vgpu_init_cfg_space().

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Changbin Du 2017-01-13 11:15:58 +08:00 committed by Zhenyu Wang
parent b611581b37
commit 536fc23407
3 changed files with 52 additions and 43 deletions
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49
drivers/gpu/drm/i915/gvt/cfg_space.c
View File

@ -282,3 +282,52 @@ int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
}
return 0;
}
/**
* intel_vgpu_init_cfg_space - init vGPU configuration space when create vGPU
*
* @vgpu: a vGPU
* @primary: is the vGPU presented as primary
*
*/
void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu,
bool primary)
{
struct intel_gvt *gvt = vgpu->gvt;
const struct intel_gvt_device_info *info = &gvt->device_info;
u16 *gmch_ctl;
int i;
memcpy(vgpu_cfg_space(vgpu), gvt->firmware.cfg_space,
info->cfg_space_size);
if (!primary) {
vgpu_cfg_space(vgpu)[PCI_CLASS_DEVICE] =
INTEL_GVT_PCI_CLASS_VGA_OTHER;
vgpu_cfg_space(vgpu)[PCI_CLASS_PROG] =
INTEL_GVT_PCI_CLASS_VGA_OTHER;
}
/* Show guest that there isn't any stolen memory.*/
gmch_ctl = (u16 *)(vgpu_cfg_space(vgpu) + INTEL_GVT_PCI_GMCH_CONTROL);
*gmch_ctl &= ~(BDW_GMCH_GMS_MASK << BDW_GMCH_GMS_SHIFT);
intel_vgpu_write_pci_bar(vgpu, PCI_BASE_ADDRESS_2,
gvt_aperture_pa_base(gvt), true);
vgpu_cfg_space(vgpu)[PCI_COMMAND] &= ~(PCI_COMMAND_IO
| PCI_COMMAND_MEMORY
| PCI_COMMAND_MASTER);
/*
* Clear the bar upper 32bit and let guest to assign the new value
*/
memset(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_1, 0, 4);
memset(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_3, 0, 4);
memset(vgpu_cfg_space(vgpu) + INTEL_GVT_PCI_OPREGION, 0, 4);
for (i = 0; i < INTEL_GVT_MAX_BAR_NUM; i++) {
vgpu->cfg_space.bar[i].size = pci_resource_len(
gvt->dev_priv->drm.pdev, i * 2);
vgpu->cfg_space.bar[i].tracked = false;
}
}

2
drivers/gpu/drm/i915/gvt/gvt.h
View File

@ -412,6 +412,8 @@ int intel_gvt_ggtt_index_g2h(struct intel_vgpu *vgpu, unsigned long g_index,
int intel_gvt_ggtt_h2g_index(struct intel_vgpu *vgpu, unsigned long h_index,
unsigned long *g_index);
void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu,
bool primary);
int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset,
void *p_data, unsigned int bytes);

44
drivers/gpu/drm/i915/gvt/vgpu.c
View File

@ -66,48 +66,6 @@ int setup_vgpu_mmio(struct intel_vgpu *vgpu)
return 0;
}
static void setup_vgpu_cfg_space(struct intel_vgpu *vgpu,
struct intel_vgpu_creation_params *param)
{
struct intel_gvt *gvt = vgpu->gvt;
const struct intel_gvt_device_info *info = &gvt->device_info;
u16 *gmch_ctl;
int i;
memcpy(vgpu_cfg_space(vgpu), gvt->firmware.cfg_space,
info->cfg_space_size);
if (!param->primary) {
vgpu_cfg_space(vgpu)[PCI_CLASS_DEVICE] =
INTEL_GVT_PCI_CLASS_VGA_OTHER;
vgpu_cfg_space(vgpu)[PCI_CLASS_PROG] =
INTEL_GVT_PCI_CLASS_VGA_OTHER;
}
/* Show guest that there isn't any stolen memory.*/
gmch_ctl = (u16 *)(vgpu_cfg_space(vgpu) + INTEL_GVT_PCI_GMCH_CONTROL);
*gmch_ctl &= ~(BDW_GMCH_GMS_MASK << BDW_GMCH_GMS_SHIFT);
intel_vgpu_write_pci_bar(vgpu, PCI_BASE_ADDRESS_2,
gvt_aperture_pa_base(gvt), true);
vgpu_cfg_space(vgpu)[PCI_COMMAND] &= ~(PCI_COMMAND_IO
| PCI_COMMAND_MEMORY
| PCI_COMMAND_MASTER);
/*
* Clear the bar upper 32bit and let guest to assign the new value
*/
memset(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_1, 0, 4);
memset(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_3, 0, 4);
memset(vgpu_cfg_space(vgpu) + INTEL_GVT_PCI_OPREGION, 0, 4);
for (i = 0; i < INTEL_GVT_MAX_BAR_NUM; i++) {
vgpu->cfg_space.bar[i].size = pci_resource_len(
gvt->dev_priv->drm.pdev, i * 2);
vgpu->cfg_space.bar[i].tracked = false;
}
}
void populate_pvinfo_page(struct intel_vgpu *vgpu)
{
/* setup the ballooning information */
@ -300,7 +258,7 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
vgpu->gvt = gvt;
bitmap_zero(vgpu->tlb_handle_pending, I915_NUM_ENGINES);
setup_vgpu_cfg_space(vgpu, param);
intel_vgpu_init_cfg_space(vgpu, param->primary);
ret = setup_vgpu_mmio(vgpu);
if (ret)