fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-08 06:58:05 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

pvr: Use os_get_gpu_heap_size()

Browse source 
To use the common function, this gives up the warning about the
memory being too small to meet the Vulkan spec for low end
devices.

Note: the common helper expose 25% for devices with <=1GiB but
to adhere to the Vulkan spec, the value is clamped to 1GiB.

Signed-off-by: Karmjit Mahil <karmjit.mahil@igalia.com>
This commit is contained in:
Karmjit Mahil 2026-04-27 15:33:11 +01:00
parent 6331fedd31
commit 62c0f4811d
1 changed files with 5 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
src/imagination/vulkan/pvr_physical_device.c
View file

@ -18,6 +18,7 @@
#include "util/disk_cache.h"
#include "util/ralloc.h"
#include "util/os_misc.h"
#include "vk_util.h"
#include "vk_log.h"
@ -986,30 +987,13 @@ static bool pvr_device_is_conformant(const struct pvr_device_info *info)
return false;
}
/* Minimum required by the Vulkan 1.1 spec (see Table 32. Required Limits) */
/* Minimum required by the Vulkan spec Limits (maxMemoryAllocationSize) */
#define PVR_MAX_MEMORY_ALLOCATION_SIZE (1ull << 30)
static uint64_t pvr_compute_heap_size(void)
static inline uint64_t pvr_compute_heap_size(void)
{
/* Query the total ram from the system */
uint64_t total_ram;
if (!os_get_total_physical_memory(&total_ram))
return 0;
if (total_ram < PVR_MAX_MEMORY_ALLOCATION_SIZE) {
mesa_logw(
"Warning: The available RAM is below the minimum required by the Vulkan specification!");
}
/* We don't want to burn too much ram with the GPU. If the user has 4GiB
* or less, we use at most half. If they have more than 4GiB, we use 3/4.
*/
uint64_t available_ram;
if (total_ram <= 4ULL * 1024ULL * 1024ULL * 1024ULL)
available_ram = total_ram / 2U;
else
available_ram = total_ram * 3U / 4U;
uint64_t available_ram =
os_get_gpu_heap_size(OS_GPU_HEAP_SIZE_HEURISTIC, NULL);
return MAX2(available_ram, PVR_MAX_MEMORY_ALLOCATION_SIZE);
}