ppc440_sdram: Split off map/unmap of sdram banks for later reuse
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <23560b6a71682d513f3dd8e9ed3852f51d5eb309.1664021647.git.balaton@eik.bme.hu> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
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@ -23,6 +23,7 @@
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#include "sysemu/reset.h"
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#include "ppc440.h"
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#include "qom/object.h"
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#include "trace.h"
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/*****************************************************************************/
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/* L2 Cache as SRAM */
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@ -563,26 +564,34 @@ static uint64_t sdram_size(uint32_t bcr)
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return size;
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}
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static void sdram_bank_map(Ppc4xxSdramBank *bank)
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{
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memory_region_init(&bank->container, NULL, "sdram-container", bank->size);
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memory_region_add_subregion(&bank->container, 0, &bank->ram);
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memory_region_add_subregion(get_system_memory(), bank->base,
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&bank->container);
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}
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static void sdram_bank_unmap(Ppc4xxSdramBank *bank)
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{
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memory_region_del_subregion(get_system_memory(), &bank->container);
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memory_region_del_subregion(&bank->container, &bank->ram);
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object_unparent(OBJECT(&bank->container));
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}
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static void sdram_set_bcr(ppc440_sdram_t *sdram, int i,
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uint32_t bcr, int enabled)
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{
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if (sdram->bank[i].bcr & 1) {
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/* First unmap RAM if enabled */
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memory_region_del_subregion(get_system_memory(),
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&sdram->bank[i].container);
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memory_region_del_subregion(&sdram->bank[i].container,
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&sdram->bank[i].ram);
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object_unparent(OBJECT(&sdram->bank[i].container));
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trace_ppc4xx_sdram_unmap(sdram_base(sdram->bank[i].bcr),
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sdram_size(sdram->bank[i].bcr));
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sdram_bank_unmap(&sdram->bank[i]);
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}
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sdram->bank[i].bcr = bcr & 0xffe0ffc1;
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if (enabled && (bcr & 1)) {
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memory_region_init(&sdram->bank[i].container, NULL, "sdram-container",
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sdram_size(bcr));
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memory_region_add_subregion(&sdram->bank[i].container, 0,
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&sdram->bank[i].ram);
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memory_region_add_subregion(get_system_memory(),
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sdram_base(bcr),
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&sdram->bank[i].container);
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trace_ppc4xx_sdram_map(sdram_base(bcr), sdram_size(bcr));
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sdram_bank_map(&sdram->bank[i]);
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}
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}
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