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broadcom: don't hardcode pagesize
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As rpi5 can work with either 16k or 4k pages, instead of hardcoding the
pagesize just query the kernel.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39555>
This commit is contained in:
Juan A. Suarez Romero 2026-01-27 12:57:51 +01:00 • committed by Marge Bot
parent 55d0fb12cd
commit 143b362c0f
1 changed files with 7 additions and 2 deletions
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9
src/broadcom/common/v3d_device_info.c
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@ -21,12 +21,14 @@
* IN THE SOFTWARE.
*/
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include "common/v3d_device_info.h"
#include "drm-uapi/v3d_drm.h"
#include "util/os_misc.h"
bool
v3d_get_device_info(int fd, struct v3d_device_info* devinfo, v3d_ioctl_fun drm_ioctl) {
@ -73,16 +75,19 @@ v3d_get_device_info(int fd, struct v3d_device_info* devinfo, v3d_ioctl_fun drm_i
devinfo->has_accumulators = devinfo->ver < 71;
uint64_t os_page_size;
os_get_page_size(&os_page_size);
assert(os_page_size <= UINT32_MAX);
devinfo->cle_buffer_min_size = (uint32_t)os_page_size;
switch (devinfo->ver) {
case 42:
devinfo->clipper_xy_granularity = 256.0f;
devinfo->cle_readahead = 256u;
devinfo->cle_buffer_min_size = 4096u;
break;
case 71:
devinfo->clipper_xy_granularity = 64.0f;
devinfo->cle_readahead = 1024u;
devinfo->cle_buffer_min_size = 16384u;
break;
default:
fprintf(stderr,