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This commit is contained in:
Bernhard Stoeckner
2024-02-22 17:27:30 +01:00
parent ee55481a49
commit 6d33efe502
79 changed files with 75714 additions and 75417 deletions
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125
kernel-open/nvidia/nv.c
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@@ -5640,3 +5640,128 @@ failed:
NV_DEV_PRINTF(NV_DBG_INFO, nv, "Cannot get EGM info\n");
return NV_ERR_NOT_SUPPORTED;
}
void NV_API_CALL nv_get_screen_info(
nv_state_t *nv,
NvU64 *pPhysicalAddress,
NvU16 *pFbWidth,
NvU16 *pFbHeight,
NvU16 *pFbDepth,
NvU16 *pFbPitch,
NvU64 *pFbSize
)
{
*pPhysicalAddress = 0;
*pFbWidth = *pFbHeight = *pFbDepth = *pFbPitch = *pFbSize = 0;
#if defined(CONFIG_FB) && defined(NV_NUM_REGISTERED_FB_PRESENT)
if (num_registered_fb > 0)
{
int i;
for (i = 0; i < num_registered_fb; i++)
{
if (!registered_fb[i])
continue;
/* Make sure base address is mapped to GPU BAR */
if (NV_IS_CONSOLE_MAPPED(nv, registered_fb[i]->fix.smem_start))
{
*pPhysicalAddress = registered_fb[i]->fix.smem_start;
*pFbWidth = registered_fb[i]->var.xres;
*pFbHeight = registered_fb[i]->var.yres;
*pFbDepth = registered_fb[i]->var.bits_per_pixel;
*pFbPitch = registered_fb[i]->fix.line_length;
*pFbSize = (NvU64)(*pFbHeight) * (NvU64)(*pFbPitch);
return;
}
}
}
#endif
/*
* If the screen info is not found in the registered FBs then fallback
* to the screen_info structure.
*
* The SYSFB_SIMPLEFB option, if enabled, marks VGA/VBE/EFI framebuffers as
* generic framebuffers so the new generic system-framebuffer drivers can
* be used instead. DRM_SIMPLEDRM drives the generic system-framebuffers
* device created by SYSFB_SIMPLEFB.
*
* SYSFB_SIMPLEFB registers a dummy framebuffer which does not contain the
* information required by nv_get_screen_info(), therefore you need to
* fall back onto the screen_info structure.
*
* After commit b8466fe82b79 ("efi: move screen_info into efi init code")
* in v6.7, 'screen_info' is exported as GPL licensed symbol for ARM64.
*/
#if NV_CHECK_EXPORT_SYMBOL(screen_info)
/*
* If there is not a framebuffer console, return 0 size.
*
* orig_video_isVGA is set to 1 during early Linux kernel
* initialization, and then will be set to a value, such as
* VIDEO_TYPE_VLFB or VIDEO_TYPE_EFI if an fbdev console is used.
*/
if (screen_info.orig_video_isVGA > 1)
{
NvU64 physAddr = screen_info.lfb_base;
#if defined(VIDEO_CAPABILITY_64BIT_BASE)
physAddr |= (NvU64)screen_info.ext_lfb_base << 32;
#endif
/* Make sure base address is mapped to GPU BAR */
if (NV_IS_CONSOLE_MAPPED(nv, physAddr))
{
*pPhysicalAddress = physAddr;
*pFbWidth = screen_info.lfb_width;
*pFbHeight = screen_info.lfb_height;
*pFbDepth = screen_info.lfb_depth;
*pFbPitch = screen_info.lfb_linelength;
*pFbSize = (NvU64)(*pFbHeight) * (NvU64)(*pFbPitch);
}
}
#else
{
nv_linux_state_t *nvl = NV_GET_NVL_FROM_NV_STATE(nv);
struct pci_dev *pci_dev = nvl->pci_dev;
int i;
if (pci_dev == NULL)
return;
BUILD_BUG_ON(NV_GPU_BAR_INDEX_IMEM != NV_GPU_BAR_INDEX_FB + 1);
for (i = NV_GPU_BAR_INDEX_FB; i <= NV_GPU_BAR_INDEX_IMEM; i++)
{
int bar_index = nv_bar_index_to_os_bar_index(pci_dev, i);
struct resource *gpu_bar_res = &pci_dev->resource[bar_index];
struct resource *res = gpu_bar_res->child;
/*
* Console resource will become child resource of pci-dev resource.
* Check if child resource start address matches with expected
* console start address.
*/
if ((res != NULL) &&
NV_IS_CONSOLE_MAPPED(nv, res->start))
{
NvU32 res_name_len = strlen(res->name);
/*
* The resource name ends with 'fb' (efifb, vesafb, etc.).
* For simple-framebuffer, the resource name is 'BOOTFB'.
* Confirm if the resources name either ends with 'fb' or 'FB'.
*/
if ((res_name_len > 2) &&
!strcasecmp((res->name + res_name_len - 2), "fb"))
{
*pPhysicalAddress = res->start;
*pFbSize = resource_size(res);
return;
}
}
}
}
#endif
}